1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
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::{CommitDetails, 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 AcceptEditPrediction, BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint,
19 DisplayRow, 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, Selection, SoftWrap,
24 StickyHeaderExcerpt, ToPoint, ToggleFold, CURSORS_VISIBLE_FOR,
25 EDIT_PREDICTION_REQUIRES_MODIFIER_KEY_CONTEXT, FILE_HEADER_HEIGHT,
26 GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
27};
28use client::ParticipantIndex;
29use collections::{BTreeMap, HashMap, HashSet};
30use diff::DiffHunkStatus;
31use file_icons::FileIcons;
32use git::{blame::BlameEntry, Oid};
33use gpui::{
34 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
35 relative, size, svg, transparent_black, Action, AnyElement, App, AvailableSpace, Axis, Bounds,
36 ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase,
37 Edges, Element, ElementInputHandler, Entity, FocusHandle, Focusable as _, FontId,
38 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, KeyBindingContextPredicate,
39 Keystroke, Length, ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent,
40 MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine,
41 SharedString, Size, StatefulInteractiveElement, Style, Styled, Subscription, TextRun,
42 TextStyleRefinement, 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::{KeyBindingValidator, KeyBindingValidatorRegistration, 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::{markdown::MarkdownString, 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
89 Unfolded {
90 diff_base_byte_range: Range<usize>,
91 display_row_range: Range<DisplayRow>,
92 multi_buffer_range: Range<Anchor>,
93 status: DiffHunkStatus,
94 },
95}
96
97struct SelectionLayout {
98 head: DisplayPoint,
99 cursor_shape: CursorShape,
100 is_newest: bool,
101 is_local: bool,
102 range: Range<DisplayPoint>,
103 active_rows: Range<DisplayRow>,
104 user_name: Option<SharedString>,
105}
106
107impl SelectionLayout {
108 fn new<T: ToPoint + ToDisplayPoint + Clone>(
109 selection: Selection<T>,
110 line_mode: bool,
111 cursor_shape: CursorShape,
112 map: &DisplaySnapshot,
113 is_newest: bool,
114 is_local: bool,
115 user_name: Option<SharedString>,
116 ) -> Self {
117 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
118 let display_selection = point_selection.map(|p| p.to_display_point(map));
119 let mut range = display_selection.range();
120 let mut head = display_selection.head();
121 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
122 ..map.next_line_boundary(point_selection.end).1.row();
123
124 // vim visual line mode
125 if line_mode {
126 let point_range = map.expand_to_line(point_selection.range());
127 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
128 }
129
130 // any vim visual mode (including line mode)
131 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
132 && !range.is_empty()
133 && !selection.reversed
134 {
135 if head.column() > 0 {
136 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
137 } else if head.row().0 > 0 && head != map.max_point() {
138 head = map.clip_point(
139 DisplayPoint::new(
140 head.row().previous_row(),
141 map.line_len(head.row().previous_row()),
142 ),
143 Bias::Left,
144 );
145 // updating range.end is a no-op unless you're cursor is
146 // on the newline containing a multi-buffer divider
147 // in which case the clip_point may have moved the head up
148 // an additional row.
149 range.end = DisplayPoint::new(head.row().next_row(), 0);
150 active_rows.end = head.row();
151 }
152 }
153
154 Self {
155 head,
156 cursor_shape,
157 is_newest,
158 is_local,
159 range,
160 active_rows,
161 user_name,
162 }
163 }
164}
165
166pub struct EditorElement {
167 editor: Entity<Editor>,
168 style: EditorStyle,
169}
170
171type DisplayRowDelta = u32;
172
173impl EditorElement {
174 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
175
176 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
177 Self {
178 editor: editor.clone(),
179 style,
180 }
181 }
182
183 fn register_actions(&self, window: &mut Window, cx: &mut App) {
184 let editor = &self.editor;
185 editor.update(cx, |editor, cx| {
186 for action in editor.editor_actions.borrow().values() {
187 (action)(window, cx)
188 }
189 });
190
191 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
192 crate::clangd_ext::apply_related_actions(editor, window, cx);
193 register_action(editor, window, Editor::open_context_menu);
194 register_action(editor, window, Editor::move_left);
195 register_action(editor, window, Editor::move_right);
196 register_action(editor, window, Editor::move_down);
197 register_action(editor, window, Editor::move_down_by_lines);
198 register_action(editor, window, Editor::select_down_by_lines);
199 register_action(editor, window, Editor::move_up);
200 register_action(editor, window, Editor::move_up_by_lines);
201 register_action(editor, window, Editor::select_up_by_lines);
202 register_action(editor, window, Editor::select_page_down);
203 register_action(editor, window, Editor::select_page_up);
204 register_action(editor, window, Editor::cancel);
205 register_action(editor, window, Editor::newline);
206 register_action(editor, window, Editor::newline_above);
207 register_action(editor, window, Editor::newline_below);
208 register_action(editor, window, Editor::backspace);
209 register_action(editor, window, Editor::delete);
210 register_action(editor, window, Editor::tab);
211 register_action(editor, window, Editor::tab_prev);
212 register_action(editor, window, Editor::indent);
213 register_action(editor, window, Editor::outdent);
214 register_action(editor, window, Editor::autoindent);
215 register_action(editor, window, Editor::delete_line);
216 register_action(editor, window, Editor::join_lines);
217 register_action(editor, window, Editor::sort_lines_case_sensitive);
218 register_action(editor, window, Editor::sort_lines_case_insensitive);
219 register_action(editor, window, Editor::reverse_lines);
220 register_action(editor, window, Editor::shuffle_lines);
221 register_action(editor, window, Editor::convert_to_upper_case);
222 register_action(editor, window, Editor::convert_to_lower_case);
223 register_action(editor, window, Editor::convert_to_title_case);
224 register_action(editor, window, Editor::convert_to_snake_case);
225 register_action(editor, window, Editor::convert_to_kebab_case);
226 register_action(editor, window, Editor::convert_to_upper_camel_case);
227 register_action(editor, window, Editor::convert_to_lower_camel_case);
228 register_action(editor, window, Editor::convert_to_opposite_case);
229 register_action(editor, window, Editor::delete_to_previous_word_start);
230 register_action(editor, window, Editor::delete_to_previous_subword_start);
231 register_action(editor, window, Editor::delete_to_next_word_end);
232 register_action(editor, window, Editor::delete_to_next_subword_end);
233 register_action(editor, window, Editor::delete_to_beginning_of_line);
234 register_action(editor, window, Editor::delete_to_end_of_line);
235 register_action(editor, window, Editor::cut_to_end_of_line);
236 register_action(editor, window, Editor::duplicate_line_up);
237 register_action(editor, window, Editor::duplicate_line_down);
238 register_action(editor, window, Editor::duplicate_selection);
239 register_action(editor, window, Editor::move_line_up);
240 register_action(editor, window, Editor::move_line_down);
241 register_action(editor, window, Editor::transpose);
242 register_action(editor, window, Editor::rewrap);
243 register_action(editor, window, Editor::cut);
244 register_action(editor, window, Editor::kill_ring_cut);
245 register_action(editor, window, Editor::kill_ring_yank);
246 register_action(editor, window, Editor::copy);
247 register_action(editor, window, Editor::paste);
248 register_action(editor, window, Editor::undo);
249 register_action(editor, window, Editor::redo);
250 register_action(editor, window, Editor::move_page_up);
251 register_action(editor, window, Editor::move_page_down);
252 register_action(editor, window, Editor::next_screen);
253 register_action(editor, window, Editor::scroll_cursor_top);
254 register_action(editor, window, Editor::scroll_cursor_center);
255 register_action(editor, window, Editor::scroll_cursor_bottom);
256 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
257 register_action(editor, window, |editor, _: &LineDown, window, cx| {
258 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
259 });
260 register_action(editor, window, |editor, _: &LineUp, window, cx| {
261 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
262 });
263 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
264 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
265 });
266 register_action(
267 editor,
268 window,
269 |editor, HandleInput(text): &HandleInput, window, cx| {
270 if text.is_empty() {
271 return;
272 }
273 editor.handle_input(text, window, cx);
274 },
275 );
276 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
277 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
278 });
279 register_action(editor, window, |editor, _: &PageDown, window, cx| {
280 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
281 });
282 register_action(editor, window, |editor, _: &PageUp, window, cx| {
283 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
284 });
285 register_action(editor, window, Editor::move_to_previous_word_start);
286 register_action(editor, window, Editor::move_to_previous_subword_start);
287 register_action(editor, window, Editor::move_to_next_word_end);
288 register_action(editor, window, Editor::move_to_next_subword_end);
289 register_action(editor, window, Editor::move_to_beginning_of_line);
290 register_action(editor, window, Editor::move_to_end_of_line);
291 register_action(editor, window, Editor::move_to_start_of_paragraph);
292 register_action(editor, window, Editor::move_to_end_of_paragraph);
293 register_action(editor, window, Editor::move_to_beginning);
294 register_action(editor, window, Editor::move_to_end);
295 register_action(editor, window, Editor::select_up);
296 register_action(editor, window, Editor::select_down);
297 register_action(editor, window, Editor::select_left);
298 register_action(editor, window, Editor::select_right);
299 register_action(editor, window, Editor::select_to_previous_word_start);
300 register_action(editor, window, Editor::select_to_previous_subword_start);
301 register_action(editor, window, Editor::select_to_next_word_end);
302 register_action(editor, window, Editor::select_to_next_subword_end);
303 register_action(editor, window, Editor::select_to_beginning_of_line);
304 register_action(editor, window, Editor::select_to_end_of_line);
305 register_action(editor, window, Editor::select_to_start_of_paragraph);
306 register_action(editor, window, Editor::select_to_end_of_paragraph);
307 register_action(editor, window, Editor::select_to_beginning);
308 register_action(editor, window, Editor::select_to_end);
309 register_action(editor, window, Editor::select_all);
310 register_action(editor, window, |editor, action, window, cx| {
311 editor.select_all_matches(action, window, cx).log_err();
312 });
313 register_action(editor, window, Editor::select_line);
314 register_action(editor, window, Editor::split_selection_into_lines);
315 register_action(editor, window, Editor::add_selection_above);
316 register_action(editor, window, Editor::add_selection_below);
317 register_action(editor, window, |editor, action, window, cx| {
318 editor.select_next(action, window, cx).log_err();
319 });
320 register_action(editor, window, |editor, action, window, cx| {
321 editor.select_previous(action, window, cx).log_err();
322 });
323 register_action(editor, window, Editor::toggle_comments);
324 register_action(editor, window, Editor::select_larger_syntax_node);
325 register_action(editor, window, Editor::select_smaller_syntax_node);
326 register_action(editor, window, Editor::select_enclosing_symbol);
327 register_action(editor, window, Editor::move_to_enclosing_bracket);
328 register_action(editor, window, Editor::undo_selection);
329 register_action(editor, window, Editor::redo_selection);
330 if !editor.read(cx).is_singleton(cx) {
331 register_action(editor, window, Editor::expand_excerpts);
332 register_action(editor, window, Editor::expand_excerpts_up);
333 register_action(editor, window, Editor::expand_excerpts_down);
334 }
335 register_action(editor, window, Editor::go_to_diagnostic);
336 register_action(editor, window, Editor::go_to_prev_diagnostic);
337 register_action(editor, window, Editor::go_to_next_hunk);
338 register_action(editor, window, Editor::go_to_prev_hunk);
339 register_action(editor, window, |editor, action, window, cx| {
340 editor
341 .go_to_definition(action, window, cx)
342 .detach_and_log_err(cx);
343 });
344 register_action(editor, window, |editor, action, window, cx| {
345 editor
346 .go_to_definition_split(action, window, cx)
347 .detach_and_log_err(cx);
348 });
349 register_action(editor, window, |editor, action, window, cx| {
350 editor
351 .go_to_declaration(action, window, cx)
352 .detach_and_log_err(cx);
353 });
354 register_action(editor, window, |editor, action, window, cx| {
355 editor
356 .go_to_declaration_split(action, window, cx)
357 .detach_and_log_err(cx);
358 });
359 register_action(editor, window, |editor, action, window, cx| {
360 editor
361 .go_to_implementation(action, window, cx)
362 .detach_and_log_err(cx);
363 });
364 register_action(editor, window, |editor, action, window, cx| {
365 editor
366 .go_to_implementation_split(action, window, cx)
367 .detach_and_log_err(cx);
368 });
369 register_action(editor, window, |editor, action, window, cx| {
370 editor
371 .go_to_type_definition(action, window, cx)
372 .detach_and_log_err(cx);
373 });
374 register_action(editor, window, |editor, action, window, cx| {
375 editor
376 .go_to_type_definition_split(action, window, cx)
377 .detach_and_log_err(cx);
378 });
379 register_action(editor, window, Editor::open_url);
380 register_action(editor, window, Editor::open_selected_filename);
381 register_action(editor, window, Editor::fold);
382 register_action(editor, window, Editor::fold_at_level);
383 register_action(editor, window, Editor::fold_all);
384 register_action(editor, window, Editor::fold_function_bodies);
385 register_action(editor, window, Editor::fold_at);
386 register_action(editor, window, Editor::fold_recursive);
387 register_action(editor, window, Editor::toggle_fold);
388 register_action(editor, window, Editor::toggle_fold_recursive);
389 register_action(editor, window, Editor::unfold_lines);
390 register_action(editor, window, Editor::unfold_recursive);
391 register_action(editor, window, Editor::unfold_all);
392 register_action(editor, window, Editor::unfold_at);
393 register_action(editor, window, Editor::fold_selected_ranges);
394 register_action(editor, window, Editor::set_mark);
395 register_action(editor, window, Editor::swap_selection_ends);
396 register_action(editor, window, Editor::show_completions);
397 register_action(editor, window, Editor::toggle_code_actions);
398 register_action(editor, window, Editor::open_excerpts);
399 register_action(editor, window, Editor::open_excerpts_in_split);
400 register_action(editor, window, Editor::open_proposed_changes_editor);
401 register_action(editor, window, Editor::toggle_soft_wrap);
402 register_action(editor, window, Editor::toggle_tab_bar);
403 register_action(editor, window, Editor::toggle_line_numbers);
404 register_action(editor, window, Editor::toggle_relative_line_numbers);
405 register_action(editor, window, Editor::toggle_indent_guides);
406 register_action(editor, window, Editor::toggle_inlay_hints);
407 register_action(editor, window, Editor::toggle_inline_completions);
408 register_action(editor, window, hover_popover::hover);
409 register_action(editor, window, Editor::reveal_in_finder);
410 register_action(editor, window, Editor::copy_path);
411 register_action(editor, window, Editor::copy_relative_path);
412 register_action(editor, window, Editor::copy_highlight_json);
413 register_action(editor, window, Editor::copy_permalink_to_line);
414 register_action(editor, window, Editor::open_permalink_to_line);
415 register_action(editor, window, Editor::copy_file_location);
416 register_action(editor, window, Editor::toggle_git_blame);
417 register_action(editor, window, Editor::toggle_git_blame_inline);
418 register_action(editor, window, Editor::toggle_selected_diff_hunks);
419 register_action(editor, window, Editor::expand_all_diff_hunks);
420 register_action(editor, window, |editor, action, window, cx| {
421 if let Some(task) = editor.format(action, window, cx) {
422 task.detach_and_notify_err(window, cx);
423 } else {
424 cx.propagate();
425 }
426 });
427 register_action(editor, window, |editor, action, window, cx| {
428 if let Some(task) = editor.format_selections(action, window, cx) {
429 task.detach_and_notify_err(window, cx);
430 } else {
431 cx.propagate();
432 }
433 });
434 register_action(editor, window, Editor::restart_language_server);
435 register_action(editor, window, Editor::show_character_palette);
436 register_action(editor, window, |editor, action, window, cx| {
437 if let Some(task) = editor.confirm_completion(action, window, cx) {
438 task.detach_and_notify_err(window, cx);
439 } else {
440 cx.propagate();
441 }
442 });
443 register_action(editor, window, |editor, action, window, cx| {
444 if let Some(task) = editor.compose_completion(action, window, cx) {
445 task.detach_and_notify_err(window, cx);
446 } else {
447 cx.propagate();
448 }
449 });
450 register_action(editor, window, |editor, action, window, cx| {
451 if let Some(task) = editor.confirm_code_action(action, window, cx) {
452 task.detach_and_notify_err(window, cx);
453 } else {
454 cx.propagate();
455 }
456 });
457 register_action(editor, window, |editor, action, window, cx| {
458 if let Some(task) = editor.rename(action, window, cx) {
459 task.detach_and_notify_err(window, cx);
460 } else {
461 cx.propagate();
462 }
463 });
464 register_action(editor, window, |editor, action, window, cx| {
465 if let Some(task) = editor.confirm_rename(action, window, cx) {
466 task.detach_and_notify_err(window, cx);
467 } else {
468 cx.propagate();
469 }
470 });
471 register_action(editor, window, |editor, action, window, cx| {
472 if let Some(task) = editor.find_all_references(action, window, cx) {
473 task.detach_and_log_err(cx);
474 } else {
475 cx.propagate();
476 }
477 });
478 register_action(editor, window, Editor::show_signature_help);
479 register_action(editor, window, Editor::next_edit_prediction);
480 register_action(editor, window, Editor::previous_edit_prediction);
481 register_action(editor, window, Editor::show_inline_completion);
482 register_action(editor, window, Editor::context_menu_first);
483 register_action(editor, window, Editor::context_menu_prev);
484 register_action(editor, window, Editor::context_menu_next);
485 register_action(editor, window, Editor::context_menu_last);
486 register_action(editor, window, Editor::display_cursor_names);
487 register_action(editor, window, Editor::unique_lines_case_insensitive);
488 register_action(editor, window, Editor::unique_lines_case_sensitive);
489 register_action(editor, window, Editor::accept_partial_inline_completion);
490 register_action(editor, window, Editor::accept_edit_prediction);
491 register_action(editor, window, Editor::revert_file);
492 register_action(editor, window, Editor::revert_selected_hunks);
493 register_action(editor, window, Editor::apply_all_diff_hunks);
494 register_action(editor, window, Editor::apply_selected_diff_hunks);
495 register_action(editor, window, Editor::open_active_item_in_terminal);
496 register_action(editor, window, Editor::reload_file);
497 register_action(editor, window, Editor::spawn_nearest_task);
498 register_action(editor, window, Editor::insert_uuid_v4);
499 register_action(editor, window, Editor::insert_uuid_v7);
500 register_action(editor, window, Editor::open_selections_in_multibuffer);
501 }
502
503 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
504 let position_map = layout.position_map.clone();
505 window.on_key_event({
506 let editor = self.editor.clone();
507 move |event: &ModifiersChangedEvent, phase, window, cx| {
508 if phase != DispatchPhase::Bubble {
509 return;
510 }
511 editor.update(cx, |editor, cx| {
512 if editor.hover_state.focused(window, cx) {
513 return;
514 }
515 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
516 })
517 }
518 });
519 }
520
521 fn mouse_left_down(
522 editor: &mut Editor,
523 event: &MouseDownEvent,
524 hovered_hunk: Option<Range<Anchor>>,
525 position_map: &PositionMap,
526 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
527 window: &mut Window,
528 cx: &mut Context<Editor>,
529 ) {
530 if window.default_prevented() {
531 return;
532 }
533
534 let text_hitbox = &position_map.text_hitbox;
535 let gutter_hitbox = &position_map.gutter_hitbox;
536 let mut click_count = event.click_count;
537 let mut modifiers = event.modifiers;
538
539 if let Some(hovered_hunk) = hovered_hunk {
540 editor.toggle_diff_hunks_in_ranges_narrow(vec![hovered_hunk], cx);
541 cx.notify();
542 return;
543 } else if gutter_hitbox.is_hovered(window) {
544 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
545 } else if !text_hitbox.is_hovered(window) {
546 return;
547 }
548
549 let is_singleton = editor.buffer().read(cx).is_singleton();
550
551 if click_count == 2 && !is_singleton {
552 match EditorSettings::get_global(cx).double_click_in_multibuffer {
553 DoubleClickInMultibuffer::Select => {
554 // do nothing special on double click, all selection logic is below
555 }
556 DoubleClickInMultibuffer::Open => {
557 if modifiers.alt {
558 // if double click is made with alt, pretend it's a regular double click without opening and alt,
559 // and run the selection logic.
560 modifiers.alt = false;
561 } else {
562 let scroll_position_row =
563 position_map.scroll_pixel_position.y / position_map.line_height;
564 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
565 + position_map.scroll_pixel_position.y)
566 / position_map.line_height)
567 as u32;
568 let multi_buffer_row = position_map
569 .snapshot
570 .display_point_to_point(
571 DisplayPoint::new(DisplayRow(display_row), 0),
572 Bias::Right,
573 )
574 .row;
575 let line_offset_from_top = display_row - scroll_position_row as u32;
576 // if double click is made without alt, open the corresponding excerp
577 editor.open_excerpts_common(
578 Some(JumpData::MultiBufferRow {
579 row: MultiBufferRow(multi_buffer_row),
580 line_offset_from_top,
581 }),
582 false,
583 window,
584 cx,
585 );
586 return;
587 }
588 }
589 }
590 }
591
592 let point_for_position = position_map.point_for_position(event.position);
593 let position = point_for_position.previous_valid;
594 if modifiers.shift && modifiers.alt {
595 editor.select(
596 SelectPhase::BeginColumnar {
597 position,
598 reset: false,
599 goal_column: point_for_position.exact_unclipped.column(),
600 },
601 window,
602 cx,
603 );
604 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
605 {
606 editor.select(
607 SelectPhase::Extend {
608 position,
609 click_count,
610 },
611 window,
612 cx,
613 );
614 } else {
615 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
616 let multi_cursor_modifier = match multi_cursor_setting {
617 MultiCursorModifier::Alt => modifiers.alt,
618 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
619 };
620 editor.select(
621 SelectPhase::Begin {
622 position,
623 add: multi_cursor_modifier,
624 click_count,
625 },
626 window,
627 cx,
628 );
629 }
630 cx.stop_propagation();
631
632 if !is_singleton {
633 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
634 + position_map.scroll_pixel_position.y)
635 / position_map.line_height) as u32;
636 let multi_buffer_row = position_map
637 .snapshot
638 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
639 .row;
640 if line_numbers
641 .get(&MultiBufferRow(multi_buffer_row))
642 .and_then(|line_number| line_number.hitbox.as_ref())
643 .is_some_and(|hitbox| hitbox.contains(&event.position))
644 {
645 let scroll_position_row =
646 position_map.scroll_pixel_position.y / position_map.line_height;
647 let line_offset_from_top = display_row - scroll_position_row as u32;
648
649 editor.open_excerpts_common(
650 Some(JumpData::MultiBufferRow {
651 row: MultiBufferRow(multi_buffer_row),
652 line_offset_from_top,
653 }),
654 modifiers.alt,
655 window,
656 cx,
657 );
658 cx.stop_propagation();
659 }
660 }
661 }
662
663 fn mouse_right_down(
664 editor: &mut Editor,
665 event: &MouseDownEvent,
666 position_map: &PositionMap,
667 window: &mut Window,
668 cx: &mut Context<Editor>,
669 ) {
670 if !position_map.text_hitbox.is_hovered(window) {
671 return;
672 }
673 let point_for_position = position_map.point_for_position(event.position);
674 mouse_context_menu::deploy_context_menu(
675 editor,
676 Some(event.position),
677 point_for_position.previous_valid,
678 window,
679 cx,
680 );
681 cx.stop_propagation();
682 }
683
684 fn mouse_middle_down(
685 editor: &mut Editor,
686 event: &MouseDownEvent,
687 position_map: &PositionMap,
688 window: &mut Window,
689 cx: &mut Context<Editor>,
690 ) {
691 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
692 return;
693 }
694
695 let point_for_position = position_map.point_for_position(event.position);
696 let position = point_for_position.previous_valid;
697
698 editor.select(
699 SelectPhase::BeginColumnar {
700 position,
701 reset: true,
702 goal_column: point_for_position.exact_unclipped.column(),
703 },
704 window,
705 cx,
706 );
707 }
708
709 fn mouse_up(
710 editor: &mut Editor,
711 event: &MouseUpEvent,
712 position_map: &PositionMap,
713 window: &mut Window,
714 cx: &mut Context<Editor>,
715 ) {
716 let text_hitbox = &position_map.text_hitbox;
717 let end_selection = editor.has_pending_selection();
718 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
719
720 if end_selection {
721 editor.select(SelectPhase::End, window, cx);
722 }
723
724 if end_selection && pending_nonempty_selections {
725 cx.stop_propagation();
726 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
727 && event.button == MouseButton::Middle
728 {
729 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
730 return;
731 }
732
733 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
734 if EditorSettings::get_global(cx).middle_click_paste {
735 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
736 let point_for_position = position_map.point_for_position(event.position);
737 let position = point_for_position.previous_valid;
738
739 editor.select(
740 SelectPhase::Begin {
741 position,
742 add: false,
743 click_count: 1,
744 },
745 window,
746 cx,
747 );
748 editor.insert(&text, window, cx);
749 }
750 cx.stop_propagation()
751 }
752 }
753 }
754
755 fn click(
756 editor: &mut Editor,
757 event: &ClickEvent,
758 position_map: &PositionMap,
759 window: &mut Window,
760 cx: &mut Context<Editor>,
761 ) {
762 let text_hitbox = &position_map.text_hitbox;
763 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
764
765 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
766 let multi_cursor_modifier = match multi_cursor_setting {
767 MultiCursorModifier::Alt => event.modifiers().secondary(),
768 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
769 };
770
771 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
772 let point = position_map.point_for_position(event.up.position);
773 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
774
775 cx.stop_propagation();
776 }
777 }
778
779 fn mouse_dragged(
780 editor: &mut Editor,
781 event: &MouseMoveEvent,
782 position_map: &PositionMap,
783 window: &mut Window,
784 cx: &mut Context<Editor>,
785 ) {
786 if !editor.has_pending_selection() {
787 return;
788 }
789
790 let text_bounds = position_map.text_hitbox.bounds;
791 let point_for_position = position_map.point_for_position(event.position);
792 let mut scroll_delta = gpui::Point::<f32>::default();
793 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
794 let top = text_bounds.origin.y + vertical_margin;
795 let bottom = text_bounds.bottom_left().y - vertical_margin;
796 if event.position.y < top {
797 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
798 }
799 if event.position.y > bottom {
800 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
801 }
802
803 // We need horizontal width of text
804 let style = editor.style.clone().unwrap_or_default();
805 let font_id = window.text_system().resolve_font(&style.text.font());
806 let font_size = style.text.font_size.to_pixels(window.rem_size());
807 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
808
809 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
810
811 let scroll_space: Pixels = scroll_margin_x * em_width;
812
813 let left = text_bounds.origin.x + scroll_space;
814 let right = text_bounds.top_right().x - scroll_space;
815
816 if event.position.x < left {
817 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
818 }
819 if event.position.x > right {
820 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
821 }
822
823 editor.select(
824 SelectPhase::Update {
825 position: point_for_position.previous_valid,
826 goal_column: point_for_position.exact_unclipped.column(),
827 scroll_delta,
828 },
829 window,
830 cx,
831 );
832 }
833
834 fn mouse_moved(
835 editor: &mut Editor,
836 event: &MouseMoveEvent,
837 position_map: &PositionMap,
838 window: &mut Window,
839 cx: &mut Context<Editor>,
840 ) {
841 let text_hitbox = &position_map.text_hitbox;
842 let gutter_hitbox = &position_map.gutter_hitbox;
843 let modifiers = event.modifiers;
844 let gutter_hovered = gutter_hitbox.is_hovered(window);
845 editor.set_gutter_hovered(gutter_hovered, cx);
846
847 // Don't trigger hover popover if mouse is hovering over context menu
848 if text_hitbox.is_hovered(window) {
849 let point_for_position = position_map.point_for_position(event.position);
850
851 editor.update_hovered_link(
852 point_for_position,
853 &position_map.snapshot,
854 modifiers,
855 window,
856 cx,
857 );
858
859 if let Some(point) = point_for_position.as_valid() {
860 let anchor = position_map
861 .snapshot
862 .buffer_snapshot
863 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
864 hover_at(editor, Some(anchor), window, cx);
865 Self::update_visible_cursor(editor, point, position_map, window, cx);
866 } else {
867 hover_at(editor, None, window, cx);
868 }
869 } else {
870 editor.hide_hovered_link(cx);
871 hover_at(editor, None, window, cx);
872 if gutter_hovered {
873 cx.stop_propagation();
874 }
875 }
876 }
877
878 fn update_visible_cursor(
879 editor: &mut Editor,
880 point: DisplayPoint,
881 position_map: &PositionMap,
882 window: &mut Window,
883 cx: &mut Context<Editor>,
884 ) {
885 let snapshot = &position_map.snapshot;
886 let Some(hub) = editor.collaboration_hub() else {
887 return;
888 };
889 let start = snapshot.display_snapshot.clip_point(
890 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
891 Bias::Left,
892 );
893 let end = snapshot.display_snapshot.clip_point(
894 DisplayPoint::new(
895 point.row(),
896 (point.column() + 1).min(snapshot.line_len(point.row())),
897 ),
898 Bias::Right,
899 );
900
901 let range = snapshot
902 .buffer_snapshot
903 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
904 ..snapshot
905 .buffer_snapshot
906 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
907
908 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
909 return;
910 };
911 let key = crate::HoveredCursor {
912 replica_id: selection.replica_id,
913 selection_id: selection.selection.id,
914 };
915 editor.hovered_cursors.insert(
916 key.clone(),
917 cx.spawn_in(window, |editor, mut cx| async move {
918 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
919 editor
920 .update(&mut cx, |editor, cx| {
921 editor.hovered_cursors.remove(&key);
922 cx.notify();
923 })
924 .ok();
925 }),
926 );
927 cx.notify()
928 }
929
930 #[allow(clippy::too_many_arguments)]
931 fn layout_selections(
932 &self,
933 start_anchor: Anchor,
934 end_anchor: Anchor,
935 local_selections: &[Selection<Point>],
936 snapshot: &EditorSnapshot,
937 start_row: DisplayRow,
938 end_row: DisplayRow,
939 window: &mut Window,
940 cx: &mut App,
941 ) -> (
942 Vec<(PlayerColor, Vec<SelectionLayout>)>,
943 BTreeMap<DisplayRow, bool>,
944 Option<DisplayPoint>,
945 ) {
946 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
947 let mut active_rows = BTreeMap::new();
948 let mut newest_selection_head = None;
949 self.editor.update(cx, |editor, cx| {
950 if editor.show_local_selections {
951 let mut layouts = Vec::new();
952 let newest = editor.selections.newest(cx);
953 for selection in local_selections.iter().cloned() {
954 let is_empty = selection.start == selection.end;
955 let is_newest = selection == newest;
956
957 let layout = SelectionLayout::new(
958 selection,
959 editor.selections.line_mode,
960 editor.cursor_shape,
961 &snapshot.display_snapshot,
962 is_newest,
963 editor.leader_peer_id.is_none(),
964 None,
965 );
966 if is_newest {
967 newest_selection_head = Some(layout.head);
968 }
969
970 for row in cmp::max(layout.active_rows.start.0, start_row.0)
971 ..=cmp::min(layout.active_rows.end.0, end_row.0)
972 {
973 let contains_non_empty_selection =
974 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
975 *contains_non_empty_selection |= !is_empty;
976 }
977 layouts.push(layout);
978 }
979
980 let player = editor.current_user_player_color(cx);
981 selections.push((player, layouts));
982 }
983
984 if let Some(collaboration_hub) = &editor.collaboration_hub {
985 // When following someone, render the local selections in their color.
986 if let Some(leader_id) = editor.leader_peer_id {
987 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
988 {
989 if let Some(participant_index) = collaboration_hub
990 .user_participant_indices(cx)
991 .get(&collaborator.user_id)
992 {
993 if let Some((local_selection_style, _)) = selections.first_mut() {
994 *local_selection_style = cx
995 .theme()
996 .players()
997 .color_for_participant(participant_index.0);
998 }
999 }
1000 }
1001 }
1002
1003 let mut remote_selections = HashMap::default();
1004 for selection in snapshot.remote_selections_in_range(
1005 &(start_anchor..end_anchor),
1006 collaboration_hub.as_ref(),
1007 cx,
1008 ) {
1009 let selection_style =
1010 Self::get_participant_color(selection.participant_index, cx);
1011
1012 // Don't re-render the leader's selections, since the local selections
1013 // match theirs.
1014 if Some(selection.peer_id) == editor.leader_peer_id {
1015 continue;
1016 }
1017 let key = HoveredCursor {
1018 replica_id: selection.replica_id,
1019 selection_id: selection.selection.id,
1020 };
1021
1022 let is_shown =
1023 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1024
1025 remote_selections
1026 .entry(selection.replica_id)
1027 .or_insert((selection_style, Vec::new()))
1028 .1
1029 .push(SelectionLayout::new(
1030 selection.selection,
1031 selection.line_mode,
1032 selection.cursor_shape,
1033 &snapshot.display_snapshot,
1034 false,
1035 false,
1036 if is_shown { selection.user_name } else { None },
1037 ));
1038 }
1039
1040 selections.extend(remote_selections.into_values());
1041 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1042 let layouts = snapshot
1043 .buffer_snapshot
1044 .selections_in_range(&(start_anchor..end_anchor), true)
1045 .map(move |(_, line_mode, cursor_shape, selection)| {
1046 SelectionLayout::new(
1047 selection,
1048 line_mode,
1049 cursor_shape,
1050 &snapshot.display_snapshot,
1051 false,
1052 false,
1053 None,
1054 )
1055 })
1056 .collect::<Vec<_>>();
1057 let player = editor.current_user_player_color(cx);
1058 selections.push((player, layouts));
1059 }
1060 });
1061 (selections, active_rows, newest_selection_head)
1062 }
1063
1064 fn collect_cursors(
1065 &self,
1066 snapshot: &EditorSnapshot,
1067 cx: &mut App,
1068 ) -> Vec<(DisplayPoint, Hsla)> {
1069 let editor = self.editor.read(cx);
1070 let mut cursors = Vec::new();
1071 let mut skip_local = false;
1072 let mut add_cursor = |anchor: Anchor, color| {
1073 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1074 };
1075 // Remote cursors
1076 if let Some(collaboration_hub) = &editor.collaboration_hub {
1077 for remote_selection in snapshot.remote_selections_in_range(
1078 &(Anchor::min()..Anchor::max()),
1079 collaboration_hub.deref(),
1080 cx,
1081 ) {
1082 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1083 add_cursor(remote_selection.selection.head(), color.cursor);
1084 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1085 skip_local = true;
1086 }
1087 }
1088 }
1089 // Local cursors
1090 if !skip_local {
1091 let color = cx.theme().players().local().cursor;
1092 editor.selections.disjoint.iter().for_each(|selection| {
1093 add_cursor(selection.head(), color);
1094 });
1095 if let Some(ref selection) = editor.selections.pending_anchor() {
1096 add_cursor(selection.head(), color);
1097 }
1098 }
1099 cursors
1100 }
1101
1102 #[allow(clippy::too_many_arguments)]
1103 fn layout_visible_cursors(
1104 &self,
1105 snapshot: &EditorSnapshot,
1106 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1107 block_start_rows: &HashSet<DisplayRow>,
1108 visible_display_row_range: Range<DisplayRow>,
1109 line_layouts: &[LineWithInvisibles],
1110 text_hitbox: &Hitbox,
1111 content_origin: gpui::Point<Pixels>,
1112 scroll_position: gpui::Point<f32>,
1113 scroll_pixel_position: gpui::Point<Pixels>,
1114 line_height: Pixels,
1115 em_width: Pixels,
1116 em_advance: Pixels,
1117 autoscroll_containing_element: bool,
1118 window: &mut Window,
1119 cx: &mut App,
1120 ) -> Vec<CursorLayout> {
1121 let mut autoscroll_bounds = None;
1122 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1123 let mut cursors = Vec::new();
1124 for (player_color, selections) in selections {
1125 for selection in selections {
1126 let cursor_position = selection.head;
1127
1128 let in_range = visible_display_row_range.contains(&cursor_position.row());
1129 if (selection.is_local && !editor.show_local_cursors(window, cx))
1130 || !in_range
1131 || block_start_rows.contains(&cursor_position.row())
1132 {
1133 continue;
1134 }
1135
1136 let cursor_row_layout = &line_layouts
1137 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1138 let cursor_column = cursor_position.column() as usize;
1139
1140 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1141 let mut block_width =
1142 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1143 if block_width == Pixels::ZERO {
1144 block_width = em_advance;
1145 }
1146 let block_text = if let CursorShape::Block = selection.cursor_shape {
1147 snapshot
1148 .grapheme_at(cursor_position)
1149 .or_else(|| {
1150 if cursor_column == 0 {
1151 snapshot.placeholder_text().and_then(|s| {
1152 s.graphemes(true).next().map(|s| s.to_string().into())
1153 })
1154 } else {
1155 None
1156 }
1157 })
1158 .and_then(|text| {
1159 let len = text.len();
1160
1161 let font = cursor_row_layout
1162 .font_id_for_index(cursor_column)
1163 .and_then(|cursor_font_id| {
1164 window.text_system().get_font_for_id(cursor_font_id)
1165 })
1166 .unwrap_or(self.style.text.font());
1167
1168 // Invert the text color for the block cursor. Ensure that the text
1169 // color is opaque enough to be visible against the background color.
1170 //
1171 // 0.75 is an arbitrary threshold to determine if the background color is
1172 // opaque enough to use as a text color.
1173 //
1174 // TODO: In the future we should ensure themes have a `text_inverse` color.
1175 let color = if cx.theme().colors().editor_background.a < 0.75 {
1176 match cx.theme().appearance {
1177 Appearance::Dark => Hsla::black(),
1178 Appearance::Light => Hsla::white(),
1179 }
1180 } else {
1181 cx.theme().colors().editor_background
1182 };
1183
1184 window
1185 .text_system()
1186 .shape_line(
1187 text,
1188 cursor_row_layout.font_size,
1189 &[TextRun {
1190 len,
1191 font,
1192 color,
1193 background_color: None,
1194 strikethrough: None,
1195 underline: None,
1196 }],
1197 )
1198 .log_err()
1199 })
1200 } else {
1201 None
1202 };
1203
1204 let x = cursor_character_x - scroll_pixel_position.x;
1205 let y = (cursor_position.row().as_f32()
1206 - scroll_pixel_position.y / line_height)
1207 * line_height;
1208 if selection.is_newest {
1209 editor.pixel_position_of_newest_cursor = Some(point(
1210 text_hitbox.origin.x + x + block_width / 2.,
1211 text_hitbox.origin.y + y + line_height / 2.,
1212 ));
1213
1214 if autoscroll_containing_element {
1215 let top = text_hitbox.origin.y
1216 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1217 * line_height;
1218 let left = text_hitbox.origin.x
1219 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1220 .max(0.)
1221 * em_width;
1222
1223 let bottom = text_hitbox.origin.y
1224 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1225 * line_height;
1226 let right = text_hitbox.origin.x
1227 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1228 * em_width;
1229
1230 autoscroll_bounds =
1231 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1232 }
1233 }
1234
1235 let mut cursor = CursorLayout {
1236 color: player_color.cursor,
1237 block_width,
1238 origin: point(x, y),
1239 line_height,
1240 shape: selection.cursor_shape,
1241 block_text,
1242 cursor_name: None,
1243 };
1244 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1245 string: name,
1246 color: self.style.background,
1247 is_top_row: cursor_position.row().0 == 0,
1248 });
1249 cursor.layout(content_origin, cursor_name, window, cx);
1250 cursors.push(cursor);
1251 }
1252 }
1253 cursors
1254 });
1255
1256 if let Some(bounds) = autoscroll_bounds {
1257 window.request_autoscroll(bounds);
1258 }
1259
1260 cursor_layouts
1261 }
1262
1263 fn layout_scrollbars(
1264 &self,
1265 snapshot: &EditorSnapshot,
1266 scrollbar_range_data: ScrollbarRangeData,
1267 scroll_position: gpui::Point<f32>,
1268 non_visible_cursors: bool,
1269 window: &mut Window,
1270 cx: &mut App,
1271 ) -> AxisPair<Option<ScrollbarLayout>> {
1272 let letter_size = scrollbar_range_data.letter_size;
1273 let text_units_per_page = axis_pair(
1274 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1275 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1276 );
1277
1278 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1279 let show_scrollbars = self.editor.read(cx).show_scrollbars
1280 && match scrollbar_settings.show {
1281 ShowScrollbar::Auto => {
1282 let editor = self.editor.read(cx);
1283 let is_singleton = editor.is_singleton(cx);
1284 // Git
1285 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1286 ||
1287 // Buffer Search Results
1288 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1289 ||
1290 // Selected Symbol Occurrences
1291 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1292 ||
1293 // Diagnostics
1294 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1295 ||
1296 // Cursors out of sight
1297 non_visible_cursors
1298 ||
1299 // Scrollmanager
1300 editor.scroll_manager.scrollbars_visible()
1301 }
1302 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1303 ShowScrollbar::Always => true,
1304 ShowScrollbar::Never => false,
1305 };
1306
1307 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1308
1309 if snapshot.mode != EditorMode::Full {
1310 return axis_pair(None, None);
1311 }
1312
1313 let visible_range = axis_pair(
1314 axes.horizontal
1315 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1316 axes.vertical
1317 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1318 );
1319
1320 // If a drag took place after we started dragging the scrollbar,
1321 // cancel the scrollbar drag.
1322 if cx.has_active_drag() {
1323 self.editor.update(cx, |editor, cx| {
1324 editor
1325 .scroll_manager
1326 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1327 editor
1328 .scroll_manager
1329 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1330 });
1331 }
1332
1333 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1334
1335 let track_bounds = axis_pair(
1336 axes.horizontal.then(|| {
1337 Bounds::from_corners(
1338 point(
1339 text_bounds.bottom_left().x,
1340 text_bounds.bottom_left().y - self.style.scrollbar_width,
1341 ),
1342 point(
1343 text_bounds.bottom_right().x
1344 - if axes.vertical {
1345 self.style.scrollbar_width
1346 } else {
1347 px(0.)
1348 },
1349 text_bounds.bottom_right().y,
1350 ),
1351 )
1352 }),
1353 axes.vertical.then(|| {
1354 Bounds::from_corners(
1355 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1356 text_bounds.bottom_right(),
1357 )
1358 }),
1359 );
1360
1361 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1362 let total_text_units = axis_pair(
1363 Some(scroll_range_size.width / letter_size.width),
1364 Some(scroll_range_size.height / letter_size.height),
1365 );
1366
1367 let thumb_size = axis_pair(
1368 total_text_units
1369 .horizontal
1370 .zip(track_bounds.horizontal)
1371 .and_then(|(total_text_units_x, track_bounds_x)| {
1372 if text_units_per_page.horizontal >= total_text_units_x {
1373 return None;
1374 }
1375
1376 let thumb_percent =
1377 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1378
1379 Some(track_bounds_x.size.width * thumb_percent)
1380 }),
1381 total_text_units.vertical.zip(track_bounds.vertical).map(
1382 |(total_text_units_y, track_bounds_y)| {
1383 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1384
1385 track_bounds_y.size.height * thumb_percent
1386 },
1387 ),
1388 );
1389
1390 // NOTE: Space not taken by track bounds divided by text units not on screen
1391 let text_unit_size = axis_pair(
1392 thumb_size
1393 .horizontal
1394 .zip(track_bounds.horizontal)
1395 .zip(total_text_units.horizontal)
1396 .map(|((thumb_size, track_bounds), total_text_units)| {
1397 (track_bounds.size.width - thumb_size)
1398 / (total_text_units - text_units_per_page.horizontal).max(0.)
1399 }),
1400 thumb_size
1401 .vertical
1402 .zip(track_bounds.vertical)
1403 .zip(total_text_units.vertical)
1404 .map(|((thumb_size, track_bounds), total_text_units)| {
1405 (track_bounds.size.height - thumb_size)
1406 / (total_text_units - text_units_per_page.vertical).max(0.)
1407 }),
1408 );
1409
1410 let horizontal_scrollbar = track_bounds
1411 .horizontal
1412 .zip(visible_range.horizontal)
1413 .zip(text_unit_size.horizontal)
1414 .zip(thumb_size.horizontal)
1415 .map(
1416 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1417 hitbox: window.insert_hitbox(track_bounds, false),
1418 visible_range,
1419 text_unit_size,
1420 visible: show_scrollbars,
1421 thumb_size,
1422 axis: Axis::Horizontal,
1423 },
1424 );
1425
1426 let vertical_scrollbar = track_bounds
1427 .vertical
1428 .zip(visible_range.vertical)
1429 .zip(text_unit_size.vertical)
1430 .zip(thumb_size.vertical)
1431 .map(
1432 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1433 hitbox: window.insert_hitbox(track_bounds, false),
1434 visible_range,
1435 text_unit_size,
1436 visible: show_scrollbars,
1437 thumb_size,
1438 axis: Axis::Vertical,
1439 },
1440 );
1441
1442 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1443 }
1444
1445 #[allow(clippy::too_many_arguments)]
1446 fn prepaint_crease_toggles(
1447 &self,
1448 crease_toggles: &mut [Option<AnyElement>],
1449 line_height: Pixels,
1450 gutter_dimensions: &GutterDimensions,
1451 gutter_settings: crate::editor_settings::Gutter,
1452 scroll_pixel_position: gpui::Point<Pixels>,
1453 gutter_hitbox: &Hitbox,
1454 window: &mut Window,
1455 cx: &mut App,
1456 ) {
1457 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1458 if let Some(crease_toggle) = crease_toggle {
1459 debug_assert!(gutter_settings.folds);
1460 let available_space = size(
1461 AvailableSpace::MinContent,
1462 AvailableSpace::Definite(line_height * 0.55),
1463 );
1464 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1465
1466 let position = point(
1467 gutter_dimensions.width - gutter_dimensions.right_padding,
1468 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1469 );
1470 let centering_offset = point(
1471 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1472 (line_height - crease_toggle_size.height) / 2.,
1473 );
1474 let origin = gutter_hitbox.origin + position + centering_offset;
1475 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1476 }
1477 }
1478 }
1479
1480 #[allow(clippy::too_many_arguments)]
1481 fn prepaint_crease_trailers(
1482 &self,
1483 trailers: Vec<Option<AnyElement>>,
1484 lines: &[LineWithInvisibles],
1485 line_height: Pixels,
1486 content_origin: gpui::Point<Pixels>,
1487 scroll_pixel_position: gpui::Point<Pixels>,
1488 em_width: Pixels,
1489 window: &mut Window,
1490 cx: &mut App,
1491 ) -> Vec<Option<CreaseTrailerLayout>> {
1492 trailers
1493 .into_iter()
1494 .enumerate()
1495 .map(|(ix, element)| {
1496 let mut element = element?;
1497 let available_space = size(
1498 AvailableSpace::MinContent,
1499 AvailableSpace::Definite(line_height),
1500 );
1501 let size = element.layout_as_root(available_space, window, cx);
1502
1503 let line = &lines[ix];
1504 let padding = if line.width == Pixels::ZERO {
1505 Pixels::ZERO
1506 } else {
1507 4. * em_width
1508 };
1509 let position = point(
1510 scroll_pixel_position.x + line.width + padding,
1511 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1512 );
1513 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1514 let origin = content_origin + position + centering_offset;
1515 element.prepaint_as_root(origin, available_space, window, cx);
1516 Some(CreaseTrailerLayout {
1517 element,
1518 bounds: Bounds::new(origin, size),
1519 })
1520 })
1521 .collect()
1522 }
1523
1524 // Folds contained in a hunk are ignored apart from shrinking visual size
1525 // If a fold contains any hunks then that fold line is marked as modified
1526 fn layout_gutter_diff_hunks(
1527 &self,
1528 line_height: Pixels,
1529 gutter_hitbox: &Hitbox,
1530 display_rows: Range<DisplayRow>,
1531 snapshot: &EditorSnapshot,
1532 window: &mut Window,
1533 cx: &mut App,
1534 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1535 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1536 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1537
1538 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1539 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1540
1541 for hunk in snapshot
1542 .buffer_snapshot
1543 .diff_hunks_in_range(buffer_start..buffer_end)
1544 {
1545 if folded_buffers.contains(&hunk.buffer_id) {
1546 continue;
1547 }
1548
1549 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1550 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1551
1552 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1553 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1554
1555 let display_hunk = if hunk_display_start.column() != 0 {
1556 DisplayDiffHunk::Folded {
1557 display_row: hunk_display_start.row(),
1558 }
1559 } else {
1560 let mut end_row = hunk_display_end.row();
1561 if hunk_display_end.column() > 0 {
1562 end_row.0 += 1;
1563 }
1564 DisplayDiffHunk::Unfolded {
1565 status: hunk.status(),
1566 diff_base_byte_range: hunk.diff_base_byte_range,
1567 display_row_range: hunk_display_start.row()..end_row,
1568 multi_buffer_range: Anchor::range_in_buffer(
1569 hunk.excerpt_id,
1570 hunk.buffer_id,
1571 hunk.buffer_range,
1572 ),
1573 }
1574 };
1575
1576 display_hunks.push((display_hunk, None));
1577 }
1578
1579 let git_gutter_setting = ProjectSettings::get_global(cx)
1580 .git
1581 .git_gutter
1582 .unwrap_or_default();
1583 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1584 for (hunk, hitbox) in &mut display_hunks {
1585 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1586 let hunk_bounds =
1587 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1588 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1589 }
1590 }
1591 }
1592
1593 display_hunks
1594 }
1595
1596 #[allow(clippy::too_many_arguments)]
1597 fn layout_inline_blame(
1598 &self,
1599 display_row: DisplayRow,
1600 row_info: &RowInfo,
1601 line_layout: &LineWithInvisibles,
1602 crease_trailer: Option<&CreaseTrailerLayout>,
1603 em_width: Pixels,
1604 content_origin: gpui::Point<Pixels>,
1605 scroll_pixel_position: gpui::Point<Pixels>,
1606 line_height: Pixels,
1607 window: &mut Window,
1608 cx: &mut App,
1609 ) -> Option<AnyElement> {
1610 if !self
1611 .editor
1612 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1613 {
1614 return None;
1615 }
1616
1617 let workspace = self
1618 .editor
1619 .read(cx)
1620 .workspace
1621 .as_ref()
1622 .map(|(w, _)| w.clone());
1623
1624 let editor = self.editor.read(cx);
1625 let blame = editor.blame.clone()?;
1626 let padding = {
1627 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1628 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1629
1630 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1631
1632 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1633 match &inline_completion.completion {
1634 InlineCompletion::Edit {
1635 display_mode: EditDisplayMode::TabAccept,
1636 ..
1637 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1638 _ => {}
1639 }
1640 }
1641
1642 padding * em_width
1643 };
1644
1645 let blame_entry = blame
1646 .update(cx, |blame, cx| {
1647 blame.blame_for_rows(&[*row_info], cx).next()
1648 })
1649 .flatten()?;
1650
1651 let mut element =
1652 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1653
1654 let start_y = content_origin.y
1655 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1656
1657 let start_x = {
1658 let line_end = if let Some(crease_trailer) = crease_trailer {
1659 crease_trailer.bounds.right()
1660 } else {
1661 content_origin.x - scroll_pixel_position.x + line_layout.width
1662 };
1663
1664 let padded_line_end = line_end + padding;
1665
1666 let min_column_in_pixels = ProjectSettings::get_global(cx)
1667 .git
1668 .inline_blame
1669 .and_then(|settings| settings.min_column)
1670 .map(|col| self.column_pixels(col as usize, window, cx))
1671 .unwrap_or(px(0.));
1672 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1673
1674 cmp::max(padded_line_end, min_start)
1675 };
1676
1677 let absolute_offset = point(start_x, start_y);
1678 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1679
1680 Some(element)
1681 }
1682
1683 #[allow(clippy::too_many_arguments)]
1684 fn layout_blame_entries(
1685 &self,
1686 buffer_rows: &[RowInfo],
1687 em_width: Pixels,
1688 scroll_position: gpui::Point<f32>,
1689 line_height: Pixels,
1690 gutter_hitbox: &Hitbox,
1691 max_width: Option<Pixels>,
1692 window: &mut Window,
1693 cx: &mut App,
1694 ) -> Option<Vec<AnyElement>> {
1695 if !self
1696 .editor
1697 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1698 {
1699 return None;
1700 }
1701
1702 let blame = self.editor.read(cx).blame.clone()?;
1703 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1704 blame.blame_for_rows(buffer_rows, cx).collect()
1705 });
1706
1707 let width = if let Some(max_width) = max_width {
1708 AvailableSpace::Definite(max_width)
1709 } else {
1710 AvailableSpace::MaxContent
1711 };
1712 let scroll_top = scroll_position.y * line_height;
1713 let start_x = em_width;
1714
1715 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1716
1717 let shaped_lines = blamed_rows
1718 .into_iter()
1719 .enumerate()
1720 .flat_map(|(ix, blame_entry)| {
1721 if let Some(blame_entry) = blame_entry {
1722 let mut element = render_blame_entry(
1723 ix,
1724 &blame,
1725 blame_entry,
1726 &self.style,
1727 &mut last_used_color,
1728 self.editor.clone(),
1729 cx,
1730 );
1731
1732 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1733 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1734
1735 element.prepaint_as_root(
1736 absolute_offset,
1737 size(width, AvailableSpace::MinContent),
1738 window,
1739 cx,
1740 );
1741
1742 Some(element)
1743 } else {
1744 None
1745 }
1746 })
1747 .collect();
1748
1749 Some(shaped_lines)
1750 }
1751
1752 #[allow(clippy::too_many_arguments)]
1753 fn layout_indent_guides(
1754 &self,
1755 content_origin: gpui::Point<Pixels>,
1756 text_origin: gpui::Point<Pixels>,
1757 visible_buffer_range: Range<MultiBufferRow>,
1758 scroll_pixel_position: gpui::Point<Pixels>,
1759 line_height: Pixels,
1760 snapshot: &DisplaySnapshot,
1761 window: &mut Window,
1762 cx: &mut App,
1763 ) -> Option<Vec<IndentGuideLayout>> {
1764 let indent_guides = self.editor.update(cx, |editor, cx| {
1765 editor.indent_guides(visible_buffer_range, snapshot, cx)
1766 })?;
1767
1768 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1769 editor
1770 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1771 .unwrap_or_default()
1772 });
1773
1774 Some(
1775 indent_guides
1776 .into_iter()
1777 .enumerate()
1778 .filter_map(|(i, indent_guide)| {
1779 let single_indent_width =
1780 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1781 let total_width = single_indent_width * indent_guide.depth as f32;
1782 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1783 if start_x >= text_origin.x {
1784 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1785 indent_guide.start_row..indent_guide.end_row,
1786 line_height,
1787 snapshot,
1788 );
1789
1790 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1791
1792 Some(IndentGuideLayout {
1793 origin: point(start_x, start_y),
1794 length,
1795 single_indent_width,
1796 depth: indent_guide.depth,
1797 active: active_indent_guide_indices.contains(&i),
1798 settings: indent_guide.settings,
1799 })
1800 } else {
1801 None
1802 }
1803 })
1804 .collect(),
1805 )
1806 }
1807
1808 fn calculate_indent_guide_bounds(
1809 row_range: Range<MultiBufferRow>,
1810 line_height: Pixels,
1811 snapshot: &DisplaySnapshot,
1812 ) -> (gpui::Pixels, gpui::Pixels) {
1813 let start_point = Point::new(row_range.start.0, 0);
1814 let end_point = Point::new(row_range.end.0, 0);
1815
1816 let row_range = start_point.to_display_point(snapshot).row()
1817 ..end_point.to_display_point(snapshot).row();
1818
1819 let mut prev_line = start_point;
1820 prev_line.row = prev_line.row.saturating_sub(1);
1821 let prev_line = prev_line.to_display_point(snapshot).row();
1822
1823 let mut cons_line = end_point;
1824 cons_line.row += 1;
1825 let cons_line = cons_line.to_display_point(snapshot).row();
1826
1827 let mut offset_y = row_range.start.0 as f32 * line_height;
1828 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1829
1830 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1831 if row_range.end == cons_line {
1832 length += line_height;
1833 }
1834
1835 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1836 // we want to extend the indent guide to the start of the block.
1837 let mut block_height = 0;
1838 let mut block_offset = 0;
1839 let mut found_excerpt_header = false;
1840 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1841 if matches!(block, Block::ExcerptBoundary { .. }) {
1842 found_excerpt_header = true;
1843 break;
1844 }
1845 block_offset += block.height();
1846 block_height += block.height();
1847 }
1848 if !found_excerpt_header {
1849 offset_y -= block_offset as f32 * line_height;
1850 length += block_height as f32 * line_height;
1851 }
1852
1853 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1854 // we want to ensure that the indent guide stops before the excerpt header.
1855 let mut block_height = 0;
1856 let mut found_excerpt_header = false;
1857 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1858 if matches!(block, Block::ExcerptBoundary { .. }) {
1859 found_excerpt_header = true;
1860 }
1861 block_height += block.height();
1862 }
1863 if found_excerpt_header {
1864 length -= block_height as f32 * line_height;
1865 }
1866
1867 (offset_y, length)
1868 }
1869
1870 #[allow(clippy::too_many_arguments)]
1871 fn layout_run_indicators(
1872 &self,
1873 line_height: Pixels,
1874 range: Range<DisplayRow>,
1875 scroll_pixel_position: gpui::Point<Pixels>,
1876 gutter_dimensions: &GutterDimensions,
1877 gutter_hitbox: &Hitbox,
1878 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1879 snapshot: &EditorSnapshot,
1880 window: &mut Window,
1881 cx: &mut App,
1882 ) -> Vec<AnyElement> {
1883 self.editor.update(cx, |editor, cx| {
1884 let active_task_indicator_row =
1885 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1886 deployed_from_indicator,
1887 actions,
1888 ..
1889 })) = editor.context_menu.borrow().as_ref()
1890 {
1891 actions
1892 .tasks
1893 .as_ref()
1894 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1895 .or(*deployed_from_indicator)
1896 } else {
1897 None
1898 };
1899
1900 let offset_range_start = snapshot
1901 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1902 .to_offset(&snapshot.buffer_snapshot);
1903 let offset_range_end = snapshot
1904 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1905 .to_offset(&snapshot.buffer_snapshot);
1906
1907 editor
1908 .tasks
1909 .iter()
1910 .filter_map(|(_, tasks)| {
1911 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1912 return None;
1913 }
1914 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1915 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1916 let buffer_folded = snapshot
1917 .buffer_snapshot
1918 .buffer_line_for_row(multibuffer_row)
1919 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1920 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
1921 .unwrap_or(false);
1922 if buffer_folded {
1923 return None;
1924 }
1925
1926 if snapshot.is_line_folded(multibuffer_row) {
1927 // Skip folded indicators, unless it's the starting line of a fold.
1928 if multibuffer_row
1929 .0
1930 .checked_sub(1)
1931 .map_or(false, |previous_row| {
1932 snapshot.is_line_folded(MultiBufferRow(previous_row))
1933 })
1934 {
1935 return None;
1936 }
1937 }
1938 let display_row = multibuffer_point.to_display_point(snapshot).row();
1939 let button = editor.render_run_indicator(
1940 &self.style,
1941 Some(display_row) == active_task_indicator_row,
1942 display_row,
1943 cx,
1944 );
1945
1946 let button = prepaint_gutter_button(
1947 button,
1948 display_row,
1949 line_height,
1950 gutter_dimensions,
1951 scroll_pixel_position,
1952 gutter_hitbox,
1953 rows_with_hunk_bounds,
1954 window,
1955 cx,
1956 );
1957 Some(button)
1958 })
1959 .collect_vec()
1960 })
1961 }
1962
1963 #[allow(clippy::too_many_arguments)]
1964 fn layout_code_actions_indicator(
1965 &self,
1966 line_height: Pixels,
1967 newest_selection_head: DisplayPoint,
1968 scroll_pixel_position: gpui::Point<Pixels>,
1969 gutter_dimensions: &GutterDimensions,
1970 gutter_hitbox: &Hitbox,
1971 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1972 window: &mut Window,
1973 cx: &mut App,
1974 ) -> Option<AnyElement> {
1975 let mut active = false;
1976 let mut button = None;
1977 let row = newest_selection_head.row();
1978 self.editor.update(cx, |editor, cx| {
1979 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1980 deployed_from_indicator,
1981 ..
1982 })) = editor.context_menu.borrow().as_ref()
1983 {
1984 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1985 };
1986 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1987 });
1988
1989 let button = prepaint_gutter_button(
1990 button?,
1991 row,
1992 line_height,
1993 gutter_dimensions,
1994 scroll_pixel_position,
1995 gutter_hitbox,
1996 rows_with_hunk_bounds,
1997 window,
1998 cx,
1999 );
2000
2001 Some(button)
2002 }
2003
2004 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2005 if let Some(index) = participant_index {
2006 cx.theme().players().color_for_participant(index.0)
2007 } else {
2008 cx.theme().players().absent()
2009 }
2010 }
2011
2012 fn calculate_relative_line_numbers(
2013 &self,
2014 snapshot: &EditorSnapshot,
2015 rows: &Range<DisplayRow>,
2016 relative_to: Option<DisplayRow>,
2017 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2018 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2019 let Some(relative_to) = relative_to else {
2020 return relative_rows;
2021 };
2022
2023 let start = rows.start.min(relative_to);
2024 let end = rows.end.max(relative_to);
2025
2026 let buffer_rows = snapshot
2027 .row_infos(start)
2028 .take(1 + end.minus(start) as usize)
2029 .collect::<Vec<_>>();
2030
2031 let head_idx = relative_to.minus(start);
2032 let mut delta = 1;
2033 let mut i = head_idx + 1;
2034 while i < buffer_rows.len() as u32 {
2035 if buffer_rows[i as usize].buffer_row.is_some() {
2036 if rows.contains(&DisplayRow(i + start.0)) {
2037 relative_rows.insert(DisplayRow(i + start.0), delta);
2038 }
2039 delta += 1;
2040 }
2041 i += 1;
2042 }
2043 delta = 1;
2044 i = head_idx.min(buffer_rows.len() as u32 - 1);
2045 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2046 i -= 1;
2047 }
2048
2049 while i > 0 {
2050 i -= 1;
2051 if buffer_rows[i as usize].buffer_row.is_some() {
2052 if rows.contains(&DisplayRow(i + start.0)) {
2053 relative_rows.insert(DisplayRow(i + start.0), delta);
2054 }
2055 delta += 1;
2056 }
2057 }
2058
2059 relative_rows
2060 }
2061
2062 #[allow(clippy::too_many_arguments)]
2063 fn layout_line_numbers(
2064 &self,
2065 gutter_hitbox: Option<&Hitbox>,
2066 gutter_dimensions: GutterDimensions,
2067 line_height: Pixels,
2068 scroll_position: gpui::Point<f32>,
2069 rows: Range<DisplayRow>,
2070 buffer_rows: &[RowInfo],
2071 newest_selection_head: Option<DisplayPoint>,
2072 snapshot: &EditorSnapshot,
2073 window: &mut Window,
2074 cx: &mut App,
2075 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2076 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2077 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2078 });
2079 if !include_line_numbers {
2080 return Arc::default();
2081 }
2082
2083 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2084 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2085 let newest = editor.selections.newest::<Point>(cx);
2086 SelectionLayout::new(
2087 newest,
2088 editor.selections.line_mode,
2089 editor.cursor_shape,
2090 &snapshot.display_snapshot,
2091 true,
2092 true,
2093 None,
2094 )
2095 .head
2096 });
2097 let is_relative = editor.should_use_relative_line_numbers(cx);
2098 (newest_selection_head, is_relative)
2099 });
2100
2101 let relative_to = if is_relative {
2102 Some(newest_selection_head.row())
2103 } else {
2104 None
2105 };
2106 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2107 let mut line_number = String::new();
2108 let line_numbers = buffer_rows
2109 .into_iter()
2110 .enumerate()
2111 .flat_map(|(ix, row_info)| {
2112 let display_row = DisplayRow(rows.start.0 + ix as u32);
2113 line_number.clear();
2114 let non_relative_number = row_info.buffer_row? + 1;
2115 let number = relative_rows
2116 .get(&display_row)
2117 .unwrap_or(&non_relative_number);
2118 write!(&mut line_number, "{number}").unwrap();
2119 if row_info.diff_status == Some(DiffHunkStatus::Removed) {
2120 return None;
2121 }
2122
2123 let color = cx.theme().colors().editor_line_number;
2124 let shaped_line = self
2125 .shape_line_number(SharedString::from(&line_number), color, window)
2126 .log_err()?;
2127 let scroll_top = scroll_position.y * line_height;
2128 let line_origin = gutter_hitbox.map(|hitbox| {
2129 hitbox.origin
2130 + point(
2131 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2132 ix as f32 * line_height - (scroll_top % line_height),
2133 )
2134 });
2135
2136 #[cfg(not(test))]
2137 let hitbox = line_origin.map(|line_origin| {
2138 window.insert_hitbox(
2139 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2140 false,
2141 )
2142 });
2143 #[cfg(test)]
2144 let hitbox = {
2145 let _ = line_origin;
2146 None
2147 };
2148
2149 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2150 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2151 let line_number = LineNumberLayout {
2152 shaped_line,
2153 hitbox,
2154 display_row,
2155 };
2156 Some((multi_buffer_row, line_number))
2157 })
2158 .collect();
2159 Arc::new(line_numbers)
2160 }
2161
2162 fn layout_crease_toggles(
2163 &self,
2164 rows: Range<DisplayRow>,
2165 row_infos: &[RowInfo],
2166 active_rows: &BTreeMap<DisplayRow, bool>,
2167 snapshot: &EditorSnapshot,
2168 window: &mut Window,
2169 cx: &mut App,
2170 ) -> Vec<Option<AnyElement>> {
2171 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2172 && snapshot.mode == EditorMode::Full
2173 && self.editor.read(cx).is_singleton(cx);
2174 if include_fold_statuses {
2175 row_infos
2176 .into_iter()
2177 .enumerate()
2178 .map(|(ix, info)| {
2179 let row = info.multibuffer_row?;
2180 let display_row = DisplayRow(rows.start.0 + ix as u32);
2181 let active = active_rows.contains_key(&display_row);
2182
2183 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2184 })
2185 .collect()
2186 } else {
2187 Vec::new()
2188 }
2189 }
2190
2191 fn layout_crease_trailers(
2192 &self,
2193 buffer_rows: impl IntoIterator<Item = RowInfo>,
2194 snapshot: &EditorSnapshot,
2195 window: &mut Window,
2196 cx: &mut App,
2197 ) -> Vec<Option<AnyElement>> {
2198 buffer_rows
2199 .into_iter()
2200 .map(|row_info| {
2201 if let Some(row) = row_info.multibuffer_row {
2202 snapshot.render_crease_trailer(row, window, cx)
2203 } else {
2204 None
2205 }
2206 })
2207 .collect()
2208 }
2209
2210 fn layout_lines(
2211 rows: Range<DisplayRow>,
2212 snapshot: &EditorSnapshot,
2213 style: &EditorStyle,
2214 editor_width: Pixels,
2215 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2216 window: &mut Window,
2217 cx: &mut App,
2218 ) -> Vec<LineWithInvisibles> {
2219 if rows.start >= rows.end {
2220 return Vec::new();
2221 }
2222
2223 // Show the placeholder when the editor is empty
2224 if snapshot.is_empty() {
2225 let font_size = style.text.font_size.to_pixels(window.rem_size());
2226 let placeholder_color = cx.theme().colors().text_placeholder;
2227 let placeholder_text = snapshot.placeholder_text();
2228
2229 let placeholder_lines = placeholder_text
2230 .as_ref()
2231 .map_or("", AsRef::as_ref)
2232 .split('\n')
2233 .skip(rows.start.0 as usize)
2234 .chain(iter::repeat(""))
2235 .take(rows.len());
2236 placeholder_lines
2237 .filter_map(move |line| {
2238 let run = TextRun {
2239 len: line.len(),
2240 font: style.text.font(),
2241 color: placeholder_color,
2242 background_color: None,
2243 underline: Default::default(),
2244 strikethrough: None,
2245 };
2246 window
2247 .text_system()
2248 .shape_line(line.to_string().into(), font_size, &[run])
2249 .log_err()
2250 })
2251 .map(|line| LineWithInvisibles {
2252 width: line.width,
2253 len: line.len,
2254 fragments: smallvec![LineFragment::Text(line)],
2255 invisibles: Vec::new(),
2256 font_size,
2257 })
2258 .collect()
2259 } else {
2260 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2261 LineWithInvisibles::from_chunks(
2262 chunks,
2263 &style,
2264 MAX_LINE_LEN,
2265 rows.len(),
2266 snapshot.mode,
2267 editor_width,
2268 is_row_soft_wrapped,
2269 window,
2270 cx,
2271 )
2272 }
2273 }
2274
2275 #[allow(clippy::too_many_arguments)]
2276 fn prepaint_lines(
2277 &self,
2278 start_row: DisplayRow,
2279 line_layouts: &mut [LineWithInvisibles],
2280 line_height: Pixels,
2281 scroll_pixel_position: gpui::Point<Pixels>,
2282 content_origin: gpui::Point<Pixels>,
2283 window: &mut Window,
2284 cx: &mut App,
2285 ) -> SmallVec<[AnyElement; 1]> {
2286 let mut line_elements = SmallVec::new();
2287 for (ix, line) in line_layouts.iter_mut().enumerate() {
2288 let row = start_row + DisplayRow(ix as u32);
2289 line.prepaint(
2290 line_height,
2291 scroll_pixel_position,
2292 row,
2293 content_origin,
2294 &mut line_elements,
2295 window,
2296 cx,
2297 );
2298 }
2299 line_elements
2300 }
2301
2302 #[allow(clippy::too_many_arguments)]
2303 fn render_block(
2304 &self,
2305 block: &Block,
2306 available_width: AvailableSpace,
2307 block_id: BlockId,
2308 block_row_start: DisplayRow,
2309 snapshot: &EditorSnapshot,
2310 text_x: Pixels,
2311 rows: &Range<DisplayRow>,
2312 line_layouts: &[LineWithInvisibles],
2313 gutter_dimensions: &GutterDimensions,
2314 line_height: Pixels,
2315 em_width: Pixels,
2316 text_hitbox: &Hitbox,
2317 editor_width: Pixels,
2318 scroll_width: &mut Pixels,
2319 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2320 selections: &[Selection<Point>],
2321 selected_buffer_ids: &Vec<BufferId>,
2322 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2323 sticky_header_excerpt_id: Option<ExcerptId>,
2324 window: &mut Window,
2325 cx: &mut App,
2326 ) -> (AnyElement, Size<Pixels>) {
2327 let mut element = match block {
2328 Block::Custom(block) => {
2329 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2330 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2331 let align_to = block_start.to_display_point(snapshot);
2332 let anchor_x = text_x
2333 + if rows.contains(&align_to.row()) {
2334 line_layouts[align_to.row().minus(rows.start) as usize]
2335 .x_for_index(align_to.column() as usize)
2336 } else {
2337 layout_line(
2338 align_to.row(),
2339 snapshot,
2340 &self.style,
2341 editor_width,
2342 is_row_soft_wrapped,
2343 window,
2344 cx,
2345 )
2346 .x_for_index(align_to.column() as usize)
2347 };
2348
2349 let selected = selections
2350 .binary_search_by(|selection| {
2351 if selection.end <= block_start {
2352 Ordering::Less
2353 } else if selection.start >= block_end {
2354 Ordering::Greater
2355 } else {
2356 Ordering::Equal
2357 }
2358 })
2359 .is_ok();
2360
2361 div()
2362 .size_full()
2363 .child(block.render(&mut BlockContext {
2364 window,
2365 app: cx,
2366 anchor_x,
2367 gutter_dimensions,
2368 line_height,
2369 em_width,
2370 block_id,
2371 selected,
2372 max_width: text_hitbox.size.width.max(*scroll_width),
2373 editor_style: &self.style,
2374 }))
2375 .into_any()
2376 }
2377
2378 Block::FoldedBuffer {
2379 first_excerpt,
2380 prev_excerpt,
2381 show_excerpt_controls,
2382 height,
2383 } => {
2384 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2385 let mut result = v_flex().id(block_id).w_full();
2386
2387 if let Some(prev_excerpt) = prev_excerpt {
2388 if *show_excerpt_controls {
2389 result = result.child(self.render_expand_excerpt_control(
2390 block_id,
2391 ExpandExcerptDirection::Down,
2392 prev_excerpt.id,
2393 gutter_dimensions,
2394 window,
2395 cx,
2396 ));
2397 }
2398 }
2399
2400 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2401 result
2402 .child(self.render_buffer_header(
2403 first_excerpt,
2404 true,
2405 selected,
2406 jump_data,
2407 window,
2408 cx,
2409 ))
2410 .into_any_element()
2411 }
2412
2413 Block::ExcerptBoundary {
2414 prev_excerpt,
2415 next_excerpt,
2416 show_excerpt_controls,
2417 height,
2418 starts_new_buffer,
2419 } => {
2420 let color = cx.theme().colors().clone();
2421 let mut result = v_flex().id(block_id).w_full();
2422
2423 if let Some(prev_excerpt) = prev_excerpt {
2424 if *show_excerpt_controls {
2425 result = result.child(self.render_expand_excerpt_control(
2426 block_id,
2427 ExpandExcerptDirection::Down,
2428 prev_excerpt.id,
2429 gutter_dimensions,
2430 window,
2431 cx,
2432 ));
2433 }
2434 }
2435
2436 if let Some(next_excerpt) = next_excerpt {
2437 let jump_data =
2438 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2439
2440 if *starts_new_buffer {
2441 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2442 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2443
2444 result = result.child(self.render_buffer_header(
2445 next_excerpt,
2446 false,
2447 selected,
2448 jump_data,
2449 window,
2450 cx,
2451 ));
2452 } else {
2453 result = result
2454 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2455 }
2456
2457 if *show_excerpt_controls {
2458 result = result.child(self.render_expand_excerpt_control(
2459 block_id,
2460 ExpandExcerptDirection::Up,
2461 next_excerpt.id,
2462 gutter_dimensions,
2463 window,
2464 cx,
2465 ));
2466 }
2467 } else {
2468 if *show_excerpt_controls {
2469 result = result.child(
2470 h_flex()
2471 .relative()
2472 .child(
2473 div()
2474 .top(px(0.))
2475 .absolute()
2476 .w_full()
2477 .h_px()
2478 .bg(color.border_variant),
2479 )
2480 .child(self.render_expand_excerpt_control(
2481 block_id,
2482 ExpandExcerptDirection::Up,
2483 next_excerpt.id,
2484 gutter_dimensions,
2485 window,
2486 cx,
2487 )),
2488 );
2489 }
2490 };
2491 }
2492
2493 result.into_any()
2494 }
2495 };
2496
2497 // Discover the element's content height, then round up to the nearest multiple of line height.
2498 let preliminary_size = element.layout_as_root(
2499 size(available_width, AvailableSpace::MinContent),
2500 window,
2501 cx,
2502 );
2503 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2504 let final_size = if preliminary_size.height == quantized_height {
2505 preliminary_size
2506 } else {
2507 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2508 };
2509
2510 if let BlockId::Custom(custom_block_id) = block_id {
2511 if block.height() > 0 {
2512 let element_height_in_lines =
2513 ((final_size.height / line_height).ceil() as u32).max(1);
2514 if element_height_in_lines != block.height() {
2515 resized_blocks.insert(custom_block_id, element_height_in_lines);
2516 }
2517 }
2518 }
2519
2520 (element, final_size)
2521 }
2522
2523 fn render_buffer_header(
2524 &self,
2525 for_excerpt: &ExcerptInfo,
2526 is_folded: bool,
2527 is_selected: bool,
2528 jump_data: JumpData,
2529 window: &mut Window,
2530 cx: &mut App,
2531 ) -> Div {
2532 let include_root = self
2533 .editor
2534 .read(cx)
2535 .project
2536 .as_ref()
2537 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2538 .unwrap_or_default();
2539 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2540 let filename = path
2541 .as_ref()
2542 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2543 let parent_path = path.as_ref().and_then(|path| {
2544 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2545 });
2546 let focus_handle = self.editor.focus_handle(cx);
2547 let colors = cx.theme().colors();
2548
2549 div()
2550 .px_2()
2551 .pt_2()
2552 .w_full()
2553 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2554 .child(
2555 h_flex()
2556 .size_full()
2557 .gap_2()
2558 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2559 .pl_0p5()
2560 .pr_5()
2561 .rounded_md()
2562 .shadow_md()
2563 .border_1()
2564 .map(|div| {
2565 let border_color = if is_selected && is_folded {
2566 colors.border_focused
2567 } else {
2568 colors.border
2569 };
2570 div.border_color(border_color)
2571 })
2572 .bg(colors.editor_subheader_background)
2573 .hover(|style| style.bg(colors.element_hover))
2574 .map(|header| {
2575 let editor = self.editor.clone();
2576 let buffer_id = for_excerpt.buffer_id;
2577 let toggle_chevron_icon =
2578 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2579 header.child(
2580 div()
2581 .hover(|style| style.bg(colors.element_selected))
2582 .rounded_sm()
2583 .child(
2584 ButtonLike::new("toggle-buffer-fold")
2585 .style(ui::ButtonStyle::Transparent)
2586 .size(ButtonSize::Large)
2587 .width(px(30.).into())
2588 .children(toggle_chevron_icon)
2589 .tooltip({
2590 let focus_handle = focus_handle.clone();
2591 move |window, cx| {
2592 Tooltip::for_action_in(
2593 "Toggle Excerpt Fold",
2594 &ToggleFold,
2595 &focus_handle,
2596 window,
2597 cx,
2598 )
2599 }
2600 })
2601 .on_click(move |_, _, cx| {
2602 if is_folded {
2603 editor.update(cx, |editor, cx| {
2604 editor.unfold_buffer(buffer_id, cx);
2605 });
2606 } else {
2607 editor.update(cx, |editor, cx| {
2608 editor.fold_buffer(buffer_id, cx);
2609 });
2610 }
2611 }),
2612 ),
2613 )
2614 })
2615 .children(
2616 self.editor
2617 .read(cx)
2618 .addons
2619 .values()
2620 .filter_map(|addon| {
2621 addon.render_buffer_header_controls(for_excerpt, window, cx)
2622 })
2623 .take(1),
2624 )
2625 .child(
2626 h_flex()
2627 .cursor_pointer()
2628 .id("path header block")
2629 .size_full()
2630 .justify_between()
2631 .child(
2632 h_flex()
2633 .gap_2()
2634 .child(
2635 filename
2636 .map(SharedString::from)
2637 .unwrap_or_else(|| "untitled".into()),
2638 )
2639 .when_some(parent_path, |then, path| {
2640 then.child(div().child(path).text_color(colors.text_muted))
2641 }),
2642 )
2643 .when(is_selected, |el| {
2644 el.child(
2645 h_flex()
2646 .id("jump-to-file-button")
2647 .gap_2p5()
2648 .child(Label::new("Jump To File"))
2649 .children(
2650 KeyBinding::for_action_in(
2651 &OpenExcerpts,
2652 &focus_handle,
2653 window,
2654 )
2655 .map(|binding| binding.into_any_element()),
2656 ),
2657 )
2658 })
2659 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2660 .on_click(window.listener_for(&self.editor, {
2661 move |editor, e: &ClickEvent, window, cx| {
2662 editor.open_excerpts_common(
2663 Some(jump_data.clone()),
2664 e.down.modifiers.secondary(),
2665 window,
2666 cx,
2667 );
2668 }
2669 })),
2670 ),
2671 )
2672 }
2673
2674 fn render_expand_excerpt_control(
2675 &self,
2676 block_id: BlockId,
2677 direction: ExpandExcerptDirection,
2678 excerpt_id: ExcerptId,
2679 gutter_dimensions: &GutterDimensions,
2680 window: &Window,
2681 cx: &mut App,
2682 ) -> impl IntoElement {
2683 let color = cx.theme().colors().clone();
2684 let hover_color = color.border_variant.opacity(0.5);
2685 let focus_handle = self.editor.focus_handle(cx).clone();
2686
2687 let icon_offset =
2688 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2689 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2690 let group_name = if direction == ExpandExcerptDirection::Down {
2691 "expand-down"
2692 } else {
2693 "expand-up"
2694 };
2695
2696 let expand_area = |id: SharedString| {
2697 h_flex()
2698 .id(id)
2699 .w_full()
2700 .cursor_pointer()
2701 .block_mouse_down()
2702 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2703 .hover(|style| style.bg(hover_color))
2704 .tooltip({
2705 let focus_handle = focus_handle.clone();
2706 move |window, cx| {
2707 Tooltip::for_action_in(
2708 "Expand Excerpt",
2709 &ExpandExcerpts { lines: 0 },
2710 &focus_handle,
2711 window,
2712 cx,
2713 )
2714 }
2715 })
2716 };
2717
2718 expand_area(
2719 format!(
2720 "block-{}-{}",
2721 block_id,
2722 if direction == ExpandExcerptDirection::Down {
2723 "down"
2724 } else {
2725 "up"
2726 }
2727 )
2728 .into(),
2729 )
2730 .group(group_name)
2731 .child(
2732 h_flex()
2733 .w(icon_offset)
2734 .h(header_height)
2735 .flex_none()
2736 .justify_end()
2737 .child(
2738 ButtonLike::new("expand-icon")
2739 .style(ButtonStyle::Transparent)
2740 .child(
2741 svg()
2742 .path(if direction == ExpandExcerptDirection::Down {
2743 IconName::ArrowDownFromLine.path()
2744 } else {
2745 IconName::ArrowUpFromLine.path()
2746 })
2747 .size(IconSize::XSmall.rems())
2748 .text_color(cx.theme().colors().editor_line_number)
2749 .group_hover(group_name, |style| {
2750 style.text_color(cx.theme().colors().editor_active_line_number)
2751 }),
2752 ),
2753 ),
2754 )
2755 .on_click(window.listener_for(&self.editor, {
2756 move |editor, _, _, cx| {
2757 editor.expand_excerpt(excerpt_id, direction, cx);
2758 cx.stop_propagation();
2759 }
2760 }))
2761 }
2762
2763 #[allow(clippy::too_many_arguments)]
2764 fn render_blocks(
2765 &self,
2766 rows: Range<DisplayRow>,
2767 snapshot: &EditorSnapshot,
2768 hitbox: &Hitbox,
2769 text_hitbox: &Hitbox,
2770 editor_width: Pixels,
2771 scroll_width: &mut Pixels,
2772 gutter_dimensions: &GutterDimensions,
2773 em_width: Pixels,
2774 text_x: Pixels,
2775 line_height: Pixels,
2776 line_layouts: &[LineWithInvisibles],
2777 selections: &[Selection<Point>],
2778 selected_buffer_ids: &Vec<BufferId>,
2779 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2780 sticky_header_excerpt_id: Option<ExcerptId>,
2781 window: &mut Window,
2782 cx: &mut App,
2783 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2784 let (fixed_blocks, non_fixed_blocks) = snapshot
2785 .blocks_in_range(rows.clone())
2786 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2787
2788 let mut focused_block = self
2789 .editor
2790 .update(cx, |editor, _| editor.take_focused_block());
2791 let mut fixed_block_max_width = Pixels::ZERO;
2792 let mut blocks = Vec::new();
2793 let mut resized_blocks = HashMap::default();
2794
2795 for (row, block) in fixed_blocks {
2796 let block_id = block.id();
2797
2798 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2799 focused_block = None;
2800 }
2801
2802 let (element, element_size) = self.render_block(
2803 block,
2804 AvailableSpace::MinContent,
2805 block_id,
2806 row,
2807 snapshot,
2808 text_x,
2809 &rows,
2810 line_layouts,
2811 gutter_dimensions,
2812 line_height,
2813 em_width,
2814 text_hitbox,
2815 editor_width,
2816 scroll_width,
2817 &mut resized_blocks,
2818 selections,
2819 selected_buffer_ids,
2820 is_row_soft_wrapped,
2821 sticky_header_excerpt_id,
2822 window,
2823 cx,
2824 );
2825 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2826 blocks.push(BlockLayout {
2827 id: block_id,
2828 row: Some(row),
2829 element,
2830 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2831 style: BlockStyle::Fixed,
2832 });
2833 }
2834
2835 for (row, block) in non_fixed_blocks {
2836 let style = block.style();
2837 let width = match style {
2838 BlockStyle::Sticky => hitbox.size.width,
2839 BlockStyle::Flex => hitbox
2840 .size
2841 .width
2842 .max(fixed_block_max_width)
2843 .max(gutter_dimensions.width + *scroll_width),
2844 BlockStyle::Fixed => unreachable!(),
2845 };
2846 let block_id = block.id();
2847
2848 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2849 focused_block = None;
2850 }
2851
2852 let (element, element_size) = self.render_block(
2853 block,
2854 width.into(),
2855 block_id,
2856 row,
2857 snapshot,
2858 text_x,
2859 &rows,
2860 line_layouts,
2861 gutter_dimensions,
2862 line_height,
2863 em_width,
2864 text_hitbox,
2865 editor_width,
2866 scroll_width,
2867 &mut resized_blocks,
2868 selections,
2869 selected_buffer_ids,
2870 is_row_soft_wrapped,
2871 sticky_header_excerpt_id,
2872 window,
2873 cx,
2874 );
2875
2876 blocks.push(BlockLayout {
2877 id: block_id,
2878 row: Some(row),
2879 element,
2880 available_space: size(width.into(), element_size.height.into()),
2881 style,
2882 });
2883 }
2884
2885 if let Some(focused_block) = focused_block {
2886 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2887 if focus_handle.is_focused(window) {
2888 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2889 let style = block.style();
2890 let width = match style {
2891 BlockStyle::Fixed => AvailableSpace::MinContent,
2892 BlockStyle::Flex => AvailableSpace::Definite(
2893 hitbox
2894 .size
2895 .width
2896 .max(fixed_block_max_width)
2897 .max(gutter_dimensions.width + *scroll_width),
2898 ),
2899 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2900 };
2901
2902 let (element, element_size) = self.render_block(
2903 &block,
2904 width,
2905 focused_block.id,
2906 rows.end,
2907 snapshot,
2908 text_x,
2909 &rows,
2910 line_layouts,
2911 gutter_dimensions,
2912 line_height,
2913 em_width,
2914 text_hitbox,
2915 editor_width,
2916 scroll_width,
2917 &mut resized_blocks,
2918 selections,
2919 selected_buffer_ids,
2920 is_row_soft_wrapped,
2921 sticky_header_excerpt_id,
2922 window,
2923 cx,
2924 );
2925
2926 blocks.push(BlockLayout {
2927 id: block.id(),
2928 row: None,
2929 element,
2930 available_space: size(width, element_size.height.into()),
2931 style,
2932 });
2933 }
2934 }
2935 }
2936 }
2937
2938 if resized_blocks.is_empty() {
2939 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2940 Ok(blocks)
2941 } else {
2942 Err(resized_blocks)
2943 }
2944 }
2945
2946 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2947 /// a restart of rendering for the editor based on the new sizes.
2948 #[allow(clippy::too_many_arguments)]
2949 fn layout_blocks(
2950 &self,
2951 blocks: &mut Vec<BlockLayout>,
2952 block_starts: &mut HashSet<DisplayRow>,
2953 hitbox: &Hitbox,
2954 line_height: Pixels,
2955 scroll_pixel_position: gpui::Point<Pixels>,
2956 window: &mut Window,
2957 cx: &mut App,
2958 ) {
2959 for block in blocks {
2960 let mut origin = if let Some(row) = block.row {
2961 block_starts.insert(row);
2962 hitbox.origin
2963 + point(
2964 Pixels::ZERO,
2965 row.as_f32() * line_height - scroll_pixel_position.y,
2966 )
2967 } else {
2968 // Position the block outside the visible area
2969 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2970 };
2971
2972 if !matches!(block.style, BlockStyle::Sticky) {
2973 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2974 }
2975
2976 let focus_handle =
2977 block
2978 .element
2979 .prepaint_as_root(origin, block.available_space, window, cx);
2980
2981 if let Some(focus_handle) = focus_handle {
2982 self.editor.update(cx, |editor, _cx| {
2983 editor.set_focused_block(FocusedBlock {
2984 id: block.id,
2985 focus_handle: focus_handle.downgrade(),
2986 });
2987 });
2988 }
2989 }
2990 }
2991
2992 #[allow(clippy::too_many_arguments)]
2993 fn layout_sticky_buffer_header(
2994 &self,
2995 StickyHeaderExcerpt {
2996 excerpt,
2997 next_excerpt_controls_present,
2998 next_buffer_row,
2999 }: StickyHeaderExcerpt<'_>,
3000 scroll_position: f32,
3001 line_height: Pixels,
3002 snapshot: &EditorSnapshot,
3003 hitbox: &Hitbox,
3004 selected_buffer_ids: &Vec<BufferId>,
3005 window: &mut Window,
3006 cx: &mut App,
3007 ) -> AnyElement {
3008 let jump_data = header_jump_data(
3009 snapshot,
3010 DisplayRow(scroll_position as u32),
3011 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3012 excerpt,
3013 );
3014
3015 let editor_bg_color = cx.theme().colors().editor_background;
3016
3017 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3018
3019 let mut header = v_flex()
3020 .relative()
3021 .child(
3022 div()
3023 .w(hitbox.bounds.size.width)
3024 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3025 .bg(linear_gradient(
3026 0.,
3027 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3028 linear_color_stop(editor_bg_color, 0.6),
3029 ))
3030 .absolute()
3031 .top_0(),
3032 )
3033 .child(
3034 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3035 .into_any_element(),
3036 )
3037 .into_any_element();
3038
3039 let mut origin = hitbox.origin;
3040
3041 if let Some(next_buffer_row) = next_buffer_row {
3042 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3043
3044 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3045
3046 if next_excerpt_controls_present {
3047 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3048 }
3049
3050 let offset = scroll_position - max_row as f32;
3051
3052 if offset > 0.0 {
3053 origin.y -= Pixels(offset) * line_height;
3054 }
3055 }
3056
3057 let size = size(
3058 AvailableSpace::Definite(hitbox.size.width),
3059 AvailableSpace::MinContent,
3060 );
3061
3062 header.prepaint_as_root(origin, size, window, cx);
3063
3064 header
3065 }
3066
3067 #[allow(clippy::too_many_arguments)]
3068 fn layout_cursor_popovers(
3069 &self,
3070 line_height: Pixels,
3071 text_hitbox: &Hitbox,
3072 content_origin: gpui::Point<Pixels>,
3073 start_row: DisplayRow,
3074 scroll_pixel_position: gpui::Point<Pixels>,
3075 line_layouts: &[LineWithInvisibles],
3076 cursor: DisplayPoint,
3077 cursor_point: Point,
3078 style: &EditorStyle,
3079 window: &mut Window,
3080 cx: &mut App,
3081 ) {
3082 let mut min_menu_height = Pixels::ZERO;
3083 let mut max_menu_height = Pixels::ZERO;
3084 let mut height_above_menu = Pixels::ZERO;
3085 let height_below_menu = Pixels::ZERO;
3086 let mut edit_prediction_popover_visible = false;
3087 let mut context_menu_visible = false;
3088
3089 {
3090 let editor = self.editor.read(cx);
3091 if editor.inline_completion_visible_in_cursor_popover(
3092 editor.has_active_inline_completion(),
3093 cx,
3094 ) {
3095 height_above_menu +=
3096 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3097 edit_prediction_popover_visible = true;
3098 }
3099
3100 if editor.context_menu_visible() {
3101 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3102 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3103 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3104 context_menu_visible = true;
3105 }
3106 }
3107 }
3108
3109 let visible = edit_prediction_popover_visible || context_menu_visible;
3110 if !visible {
3111 return;
3112 }
3113
3114 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3115 let target_position = content_origin
3116 + gpui::Point {
3117 x: cmp::max(
3118 px(0.),
3119 cursor_row_layout.x_for_index(cursor.column() as usize)
3120 - scroll_pixel_position.x,
3121 ),
3122 y: cmp::max(
3123 px(0.),
3124 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3125 ),
3126 };
3127
3128 let viewport_bounds =
3129 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3130 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3131 ..Default::default()
3132 });
3133
3134 let min_height = height_above_menu + min_menu_height + height_below_menu;
3135 let max_height = height_above_menu + max_menu_height + height_below_menu;
3136 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3137 target_position,
3138 line_height,
3139 min_height,
3140 max_height,
3141 text_hitbox,
3142 viewport_bounds,
3143 window,
3144 cx,
3145 |height, max_width_for_stable_x, y_flipped, window, cx| {
3146 // First layout the menu to get its size - others can be at least this wide.
3147 let context_menu = if context_menu_visible {
3148 let menu_height = if y_flipped {
3149 height - height_below_menu
3150 } else {
3151 height - height_above_menu
3152 };
3153 let mut element = self
3154 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3155 .expect("Visible context menu should always render.");
3156 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3157 Some((CursorPopoverType::CodeContextMenu, element, size))
3158 } else {
3159 None
3160 };
3161 let min_width = context_menu
3162 .as_ref()
3163 .map_or(px(0.), |(_, _, size)| size.width);
3164 let max_width = max_width_for_stable_x.max(
3165 context_menu
3166 .as_ref()
3167 .map_or(px(0.), |(_, _, size)| size.width),
3168 );
3169
3170 let edit_prediction = if edit_prediction_popover_visible {
3171 let accept_binding =
3172 AcceptEditPredictionBinding::resolve(self.editor.focus_handle(cx), window);
3173
3174 self.editor.update(cx, move |editor, cx| {
3175 let mut element = editor.render_edit_prediction_cursor_popover(
3176 min_width,
3177 max_width,
3178 cursor_point,
3179 style,
3180 accept_binding.keystroke()?,
3181 window,
3182 cx,
3183 )?;
3184 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3185 Some((CursorPopoverType::EditPrediction, element, size))
3186 })
3187 } else {
3188 None
3189 };
3190 vec![edit_prediction, context_menu]
3191 .into_iter()
3192 .flatten()
3193 .collect::<Vec<_>>()
3194 },
3195 ) else {
3196 return;
3197 };
3198
3199 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3200 .iter()
3201 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3202 else {
3203 return;
3204 };
3205 let last_ix = laid_out_popovers.len() - 1;
3206 let menu_is_last = menu_ix == last_ix;
3207 let first_popover_bounds = laid_out_popovers[0].1;
3208 let last_popover_bounds = laid_out_popovers[last_ix].1;
3209
3210 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3211 // right, and otherwise it goes below or to the right.
3212 let mut target_bounds = Bounds::from_corners(
3213 first_popover_bounds.origin,
3214 last_popover_bounds.bottom_right(),
3215 );
3216 target_bounds.size.width = menu_bounds.size.width;
3217
3218 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3219 // based on this is preferred for layout stability.
3220 let mut max_target_bounds = target_bounds;
3221 max_target_bounds.size.height = max_height;
3222 if y_flipped {
3223 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3224 }
3225
3226 // Add spacing around `target_bounds` and `max_target_bounds`.
3227 let mut extend_amount = Edges::all(MENU_GAP);
3228 if y_flipped {
3229 extend_amount.bottom = line_height;
3230 } else {
3231 extend_amount.top = line_height;
3232 }
3233 let target_bounds = target_bounds.extend(extend_amount);
3234 let max_target_bounds = max_target_bounds.extend(extend_amount);
3235
3236 let must_place_above_or_below =
3237 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3238 laid_out_popovers[menu_ix + 1..]
3239 .iter()
3240 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3241 } else {
3242 false
3243 };
3244
3245 self.layout_context_menu_aside(
3246 y_flipped,
3247 *menu_bounds,
3248 target_bounds,
3249 max_target_bounds,
3250 max_menu_height,
3251 must_place_above_or_below,
3252 text_hitbox,
3253 viewport_bounds,
3254 window,
3255 cx,
3256 );
3257 }
3258
3259 #[allow(clippy::too_many_arguments)]
3260 fn layout_gutter_menu(
3261 &self,
3262 line_height: Pixels,
3263 text_hitbox: &Hitbox,
3264 content_origin: gpui::Point<Pixels>,
3265 scroll_pixel_position: gpui::Point<Pixels>,
3266 gutter_overshoot: Pixels,
3267 window: &mut Window,
3268 cx: &mut App,
3269 ) {
3270 let editor = self.editor.read(cx);
3271 if !editor.context_menu_visible() {
3272 return;
3273 }
3274 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3275 editor.context_menu_origin()
3276 else {
3277 return;
3278 };
3279 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3280 // indicator than just a plain first column of the text field.
3281 let target_position = content_origin
3282 + gpui::Point {
3283 x: -gutter_overshoot,
3284 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3285 };
3286 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3287 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3288 let viewport_bounds =
3289 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3290 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3291 ..Default::default()
3292 });
3293 self.layout_popovers_above_or_below_line(
3294 target_position,
3295 line_height,
3296 min_height,
3297 max_height,
3298 text_hitbox,
3299 viewport_bounds,
3300 window,
3301 cx,
3302 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3303 let mut element = self
3304 .render_context_menu(line_height, height, y_flipped, window, cx)
3305 .expect("Visible context menu should always render.");
3306 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3307 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3308 },
3309 );
3310 }
3311
3312 #[allow(clippy::too_many_arguments)]
3313 fn layout_popovers_above_or_below_line(
3314 &self,
3315 target_position: gpui::Point<Pixels>,
3316 line_height: Pixels,
3317 min_height: Pixels,
3318 max_height: Pixels,
3319 text_hitbox: &Hitbox,
3320 viewport_bounds: Bounds<Pixels>,
3321 window: &mut Window,
3322 cx: &mut App,
3323 make_sized_popovers: impl FnOnce(
3324 Pixels,
3325 Pixels,
3326 bool,
3327 &mut Window,
3328 &mut App,
3329 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3330 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3331 // If the max height won't fit below and there is more space above, put it above the line.
3332 let bottom_y_when_flipped = target_position.y - line_height;
3333 let available_above = bottom_y_when_flipped - text_hitbox.top();
3334 let available_below = text_hitbox.bottom() - target_position.y;
3335 let y_overflows_below = max_height > available_below;
3336 let mut y_flipped = y_overflows_below && available_above > available_below;
3337 let mut height = cmp::min(
3338 max_height,
3339 if y_flipped {
3340 available_above
3341 } else {
3342 available_below
3343 },
3344 );
3345
3346 // If the min height doesn't fit within text bounds, instead fit within the window.
3347 if height < min_height {
3348 let available_above = bottom_y_when_flipped;
3349 let available_below = viewport_bounds.bottom() - target_position.y;
3350 if available_below > min_height {
3351 y_flipped = false;
3352 height = min_height;
3353 } else if available_above > min_height {
3354 y_flipped = true;
3355 height = min_height;
3356 } else if available_above > available_below {
3357 y_flipped = true;
3358 height = available_above;
3359 } else {
3360 y_flipped = false;
3361 height = available_below;
3362 }
3363 }
3364
3365 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3366
3367 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3368 // for very narrow windows.
3369 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3370 if popovers.is_empty() {
3371 return None;
3372 }
3373
3374 let max_width = popovers
3375 .iter()
3376 .map(|(_, _, size)| size.width)
3377 .max()
3378 .unwrap_or_default();
3379
3380 let mut current_position = gpui::Point {
3381 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3382 // overflow. Include space for the scrollbar.
3383 x: target_position
3384 .x
3385 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3386 y: if y_flipped {
3387 bottom_y_when_flipped
3388 } else {
3389 target_position.y
3390 },
3391 };
3392
3393 let mut laid_out_popovers = popovers
3394 .into_iter()
3395 .map(|(popover_type, element, size)| {
3396 if y_flipped {
3397 current_position.y -= size.height;
3398 }
3399 let position = current_position;
3400 window.defer_draw(element, current_position, 1);
3401 if !y_flipped {
3402 current_position.y += size.height + MENU_GAP;
3403 } else {
3404 current_position.y -= MENU_GAP;
3405 }
3406 (popover_type, Bounds::new(position, size))
3407 })
3408 .collect::<Vec<_>>();
3409
3410 if y_flipped {
3411 laid_out_popovers.reverse();
3412 }
3413
3414 Some((laid_out_popovers, y_flipped))
3415 }
3416
3417 #[allow(clippy::too_many_arguments)]
3418 fn layout_context_menu_aside(
3419 &self,
3420 y_flipped: bool,
3421 menu_bounds: Bounds<Pixels>,
3422 target_bounds: Bounds<Pixels>,
3423 max_target_bounds: Bounds<Pixels>,
3424 max_height: Pixels,
3425 must_place_above_or_below: bool,
3426 text_hitbox: &Hitbox,
3427 viewport_bounds: Bounds<Pixels>,
3428 window: &mut Window,
3429 cx: &mut App,
3430 ) {
3431 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3432 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3433 && !must_place_above_or_below
3434 {
3435 let max_width = cmp::min(
3436 available_within_viewport.right - px(1.),
3437 MENU_ASIDE_MAX_WIDTH,
3438 );
3439 let Some(mut aside) =
3440 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3441 else {
3442 return;
3443 };
3444 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3445 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3446 Some((aside, right_position))
3447 } else {
3448 let max_size = size(
3449 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3450 // won't be needed here.
3451 cmp::min(
3452 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3453 viewport_bounds.right(),
3454 ),
3455 cmp::min(
3456 max_height,
3457 cmp::max(
3458 available_within_viewport.top,
3459 available_within_viewport.bottom,
3460 ),
3461 ) - POPOVER_Y_PADDING,
3462 );
3463 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3464 return;
3465 };
3466 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3467
3468 let top_position = point(
3469 menu_bounds.origin.x,
3470 target_bounds.top() - actual_size.height,
3471 );
3472 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3473
3474 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3475 // Prefer to fit on the same side of the line as the menu, then on the other side of
3476 // the line.
3477 if !y_flipped && wanted.height < available.bottom {
3478 Some(bottom_position)
3479 } else if !y_flipped && wanted.height < available.top {
3480 Some(top_position)
3481 } else if y_flipped && wanted.height < available.top {
3482 Some(top_position)
3483 } else if y_flipped && wanted.height < available.bottom {
3484 Some(bottom_position)
3485 } else {
3486 None
3487 }
3488 };
3489
3490 // Prefer choosing a direction using max sizes rather than actual size for stability.
3491 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3492 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3493 let aside_position = fit_within(available_within_text, wanted)
3494 // Fallback: fit max size in window.
3495 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3496 // Fallback: fit actual size in window.
3497 .or_else(|| fit_within(available_within_viewport, actual_size));
3498
3499 aside_position.map(|position| (aside, position))
3500 };
3501
3502 // Skip drawing if it doesn't fit anywhere.
3503 if let Some((aside, position)) = positioned_aside {
3504 window.defer_draw(aside, position, 1);
3505 }
3506 }
3507
3508 fn render_context_menu(
3509 &self,
3510 line_height: Pixels,
3511 height: Pixels,
3512 y_flipped: bool,
3513 window: &mut Window,
3514 cx: &mut App,
3515 ) -> Option<AnyElement> {
3516 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3517 self.editor.update(cx, |editor, cx| {
3518 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3519 })
3520 }
3521
3522 fn render_context_menu_aside(
3523 &self,
3524 max_size: Size<Pixels>,
3525
3526 cx: &mut App,
3527 ) -> Option<AnyElement> {
3528 if max_size.width < px(100.) || max_size.height < px(12.) {
3529 None
3530 } else {
3531 self.editor.update(cx, |editor, cx| {
3532 editor.render_context_menu_aside(&self.style, max_size, cx)
3533 })
3534 }
3535 }
3536
3537 #[allow(clippy::too_many_arguments)]
3538 fn layout_inline_completion_popover(
3539 &self,
3540 text_bounds: &Bounds<Pixels>,
3541 editor_snapshot: &EditorSnapshot,
3542 visible_row_range: Range<DisplayRow>,
3543 scroll_top: f32,
3544 scroll_bottom: f32,
3545 line_layouts: &[LineWithInvisibles],
3546 line_height: Pixels,
3547 scroll_pixel_position: gpui::Point<Pixels>,
3548 newest_selection_head: Option<DisplayPoint>,
3549 editor_width: Pixels,
3550 style: &EditorStyle,
3551 window: &mut Window,
3552 cx: &mut App,
3553 ) -> Option<AnyElement> {
3554 const PADDING_X: Pixels = Pixels(24.);
3555 const PADDING_Y: Pixels = Pixels(2.);
3556
3557 let editor = self.editor.read(cx);
3558 let active_inline_completion = editor.active_inline_completion.as_ref()?;
3559
3560 if editor.inline_completion_visible_in_cursor_popover(true, cx) {
3561 return None;
3562 }
3563
3564 match &active_inline_completion.completion {
3565 InlineCompletion::Move { target, .. } => {
3566 let previewing = false;
3567 let target_display_point = target.to_display_point(editor_snapshot);
3568 if target_display_point.row().as_f32() < scroll_top {
3569 let mut element = inline_completion_accept_indicator(
3570 "Jump to Edit",
3571 Some(IconName::ArrowUp),
3572 previewing,
3573 self.editor.focus_handle(cx),
3574 window,
3575 cx,
3576 )?;
3577 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3578 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3579 element.prepaint_at(text_bounds.origin + offset, window, cx);
3580 Some(element)
3581 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3582 let mut element = inline_completion_accept_indicator(
3583 "Jump to Edit",
3584 Some(IconName::ArrowDown),
3585 previewing,
3586 self.editor.focus_handle(cx),
3587 window,
3588 cx,
3589 )?;
3590 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3591 let offset = point(
3592 (text_bounds.size.width - size.width) / 2.,
3593 text_bounds.size.height - size.height - PADDING_Y,
3594 );
3595 element.prepaint_at(text_bounds.origin + offset, window, cx);
3596 Some(element)
3597 } else {
3598 let mut element = inline_completion_accept_indicator(
3599 "Jump to Edit",
3600 None,
3601 previewing,
3602 self.editor.focus_handle(cx),
3603 window,
3604 cx,
3605 )?;
3606
3607 let target_line_end = DisplayPoint::new(
3608 target_display_point.row(),
3609 editor_snapshot.line_len(target_display_point.row()),
3610 );
3611 let origin = self.editor.update(cx, |editor, _cx| {
3612 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3613 })?;
3614 element.prepaint_as_root(
3615 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3616 AvailableSpace::min_size(),
3617 window,
3618 cx,
3619 );
3620 Some(element)
3621 }
3622 }
3623 InlineCompletion::Edit {
3624 edits,
3625 edit_preview,
3626 display_mode,
3627 snapshot,
3628 } => {
3629 if self.editor.read(cx).has_visible_completions_menu() {
3630 return None;
3631 }
3632
3633 let edit_start = edits
3634 .first()
3635 .unwrap()
3636 .0
3637 .start
3638 .to_display_point(editor_snapshot);
3639 let edit_end = edits
3640 .last()
3641 .unwrap()
3642 .0
3643 .end
3644 .to_display_point(editor_snapshot);
3645
3646 let is_visible = visible_row_range.contains(&edit_start.row())
3647 || visible_row_range.contains(&edit_end.row());
3648 if !is_visible {
3649 return None;
3650 }
3651
3652 match display_mode {
3653 EditDisplayMode::TabAccept => {
3654 let range = &edits.first()?.0;
3655 let target_display_point = range.end.to_display_point(editor_snapshot);
3656
3657 let target_line_end = DisplayPoint::new(
3658 target_display_point.row(),
3659 editor_snapshot.line_len(target_display_point.row()),
3660 );
3661 let (previewing_inline_completion, origin) =
3662 self.editor.update(cx, |editor, _cx| {
3663 Some((
3664 editor.previewing_inline_completion,
3665 editor.display_to_pixel_point(
3666 target_line_end,
3667 editor_snapshot,
3668 window,
3669 )?,
3670 ))
3671 })?;
3672
3673 let mut element = inline_completion_accept_indicator(
3674 "Accept",
3675 None,
3676 previewing_inline_completion,
3677 self.editor.focus_handle(cx),
3678 window,
3679 cx,
3680 )?;
3681
3682 element.prepaint_as_root(
3683 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3684 AvailableSpace::min_size(),
3685 window,
3686 cx,
3687 );
3688
3689 return Some(element);
3690 }
3691 EditDisplayMode::Inline => return None,
3692 EditDisplayMode::DiffPopover => {}
3693 }
3694
3695 let highlighted_edits = crate::inline_completion_edit_text(
3696 &snapshot,
3697 edits,
3698 edit_preview.as_ref()?,
3699 false,
3700 cx,
3701 );
3702
3703 let line_count = highlighted_edits.text.lines().count();
3704
3705 let longest_row =
3706 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3707 let longest_line_width = if visible_row_range.contains(&longest_row) {
3708 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3709 } else {
3710 layout_line(
3711 longest_row,
3712 editor_snapshot,
3713 style,
3714 editor_width,
3715 |_| false,
3716 window,
3717 cx,
3718 )
3719 .width
3720 };
3721
3722 let styled_text = highlighted_edits.to_styled_text(&style.text);
3723
3724 let mut element = div()
3725 .bg(cx.theme().colors().editor_background)
3726 .border_1()
3727 .border_color(cx.theme().colors().border)
3728 .rounded_md()
3729 .child(styled_text)
3730 .into_any();
3731
3732 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3733 .extend(Edges {
3734 right: -Self::SCROLLBAR_WIDTH,
3735 ..Default::default()
3736 });
3737
3738 let x_after_longest =
3739 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3740
3741 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3742
3743 // Fully visible if it can be displayed within the window (allow overlapping other
3744 // panes). However, this is only allowed if the popover starts within text_bounds.
3745 let is_fully_visible = x_after_longest < text_bounds.right()
3746 && x_after_longest + element_bounds.width < viewport_bounds.right();
3747
3748 let origin = if is_fully_visible {
3749 point(
3750 x_after_longest,
3751 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3752 - scroll_pixel_position.y,
3753 )
3754 } else {
3755 // Avoid overlapping both the edited rows and the user's cursor.
3756 let target_above = DisplayRow(
3757 edit_start
3758 .row()
3759 .0
3760 .min(
3761 newest_selection_head
3762 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3763 )
3764 .saturating_sub(line_count as u32),
3765 );
3766 let mut row_target;
3767 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3768 row_target = target_above;
3769 } else {
3770 row_target = DisplayRow(
3771 edit_end.row().0.max(
3772 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3773 ) + 1,
3774 );
3775 if !visible_row_range.contains(&row_target) {
3776 // Not visible, so fallback on displaying immediately below the cursor.
3777 if let Some(cursor) = newest_selection_head {
3778 row_target = DisplayRow(cursor.row().0 + 1);
3779 } else {
3780 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3781 row_target = DisplayRow(0);
3782 }
3783 }
3784 };
3785
3786 text_bounds.origin
3787 + point(
3788 -scroll_pixel_position.x,
3789 row_target.as_f32() * line_height - scroll_pixel_position.y,
3790 )
3791 };
3792
3793 window.defer_draw(element, origin, 1);
3794
3795 // Do not return an element, since it will already be drawn due to defer_draw.
3796 None
3797 }
3798 }
3799 }
3800
3801 fn layout_mouse_context_menu(
3802 &self,
3803 editor_snapshot: &EditorSnapshot,
3804 visible_range: Range<DisplayRow>,
3805 content_origin: gpui::Point<Pixels>,
3806 window: &mut Window,
3807 cx: &mut App,
3808 ) -> Option<AnyElement> {
3809 let position = self.editor.update(cx, |editor, _cx| {
3810 let visible_start_point = editor.display_to_pixel_point(
3811 DisplayPoint::new(visible_range.start, 0),
3812 editor_snapshot,
3813 window,
3814 )?;
3815 let visible_end_point = editor.display_to_pixel_point(
3816 DisplayPoint::new(visible_range.end, 0),
3817 editor_snapshot,
3818 window,
3819 )?;
3820
3821 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3822 let (source_display_point, position) = match mouse_context_menu.position {
3823 MenuPosition::PinnedToScreen(point) => (None, point),
3824 MenuPosition::PinnedToEditor { source, offset } => {
3825 let source_display_point = source.to_display_point(editor_snapshot);
3826 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3827 let position = content_origin + source_point + offset;
3828 (Some(source_display_point), position)
3829 }
3830 };
3831
3832 let source_included = source_display_point.map_or(true, |source_display_point| {
3833 visible_range
3834 .to_inclusive()
3835 .contains(&source_display_point.row())
3836 });
3837 let position_included =
3838 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3839 if !source_included && !position_included {
3840 None
3841 } else {
3842 Some(position)
3843 }
3844 })?;
3845
3846 let mut element = self.editor.update(cx, |editor, _| {
3847 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3848 let context_menu = mouse_context_menu.context_menu.clone();
3849
3850 Some(
3851 deferred(
3852 anchored()
3853 .position(position)
3854 .child(context_menu)
3855 .anchor(Corner::TopLeft)
3856 .snap_to_window_with_margin(px(8.)),
3857 )
3858 .with_priority(1)
3859 .into_any(),
3860 )
3861 })?;
3862
3863 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3864 Some(element)
3865 }
3866
3867 #[allow(clippy::too_many_arguments)]
3868 fn layout_hover_popovers(
3869 &self,
3870 snapshot: &EditorSnapshot,
3871 hitbox: &Hitbox,
3872 text_hitbox: &Hitbox,
3873 visible_display_row_range: Range<DisplayRow>,
3874 content_origin: gpui::Point<Pixels>,
3875 scroll_pixel_position: gpui::Point<Pixels>,
3876 line_layouts: &[LineWithInvisibles],
3877 line_height: Pixels,
3878 em_width: Pixels,
3879 window: &mut Window,
3880 cx: &mut App,
3881 ) {
3882 struct MeasuredHoverPopover {
3883 element: AnyElement,
3884 size: Size<Pixels>,
3885 horizontal_offset: Pixels,
3886 }
3887
3888 let max_size = size(
3889 (120. * em_width) // Default size
3890 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3891 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3892 (16. * line_height) // Default size
3893 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3894 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3895 );
3896
3897 let hover_popovers = self.editor.update(cx, |editor, cx| {
3898 editor
3899 .hover_state
3900 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3901 });
3902 let Some((position, hover_popovers)) = hover_popovers else {
3903 return;
3904 };
3905
3906 // This is safe because we check on layout whether the required row is available
3907 let hovered_row_layout =
3908 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3909
3910 // Compute Hovered Point
3911 let x =
3912 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3913 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3914 let hovered_point = content_origin + point(x, y);
3915
3916 let mut overall_height = Pixels::ZERO;
3917 let mut measured_hover_popovers = Vec::new();
3918 for mut hover_popover in hover_popovers {
3919 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3920 let horizontal_offset =
3921 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3922
3923 overall_height += HOVER_POPOVER_GAP + size.height;
3924
3925 measured_hover_popovers.push(MeasuredHoverPopover {
3926 element: hover_popover,
3927 size,
3928 horizontal_offset,
3929 });
3930 }
3931 overall_height += HOVER_POPOVER_GAP;
3932
3933 fn draw_occluder(
3934 width: Pixels,
3935 origin: gpui::Point<Pixels>,
3936 window: &mut Window,
3937 cx: &mut App,
3938 ) {
3939 let mut occlusion = div()
3940 .size_full()
3941 .occlude()
3942 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3943 .into_any_element();
3944 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3945 window.defer_draw(occlusion, origin, 2);
3946 }
3947
3948 if hovered_point.y > overall_height {
3949 // There is enough space above. Render popovers above the hovered point
3950 let mut current_y = hovered_point.y;
3951 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3952 let size = popover.size;
3953 let popover_origin = point(
3954 hovered_point.x + popover.horizontal_offset,
3955 current_y - size.height,
3956 );
3957
3958 window.defer_draw(popover.element, popover_origin, 2);
3959 if position != itertools::Position::Last {
3960 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3961 draw_occluder(size.width, origin, window, cx);
3962 }
3963
3964 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3965 }
3966 } else {
3967 // There is not enough space above. Render popovers below the hovered point
3968 let mut current_y = hovered_point.y + line_height;
3969 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3970 let size = popover.size;
3971 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3972
3973 window.defer_draw(popover.element, popover_origin, 2);
3974 if position != itertools::Position::Last {
3975 let origin = point(popover_origin.x, popover_origin.y + size.height);
3976 draw_occluder(size.width, origin, window, cx);
3977 }
3978
3979 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3980 }
3981 }
3982 }
3983
3984 #[allow(clippy::too_many_arguments)]
3985 fn layout_diff_hunk_controls(
3986 &self,
3987 row_range: Range<DisplayRow>,
3988 row_infos: &[RowInfo],
3989 text_hitbox: &Hitbox,
3990 position_map: &PositionMap,
3991 newest_cursor_position: Option<DisplayPoint>,
3992 line_height: Pixels,
3993 scroll_pixel_position: gpui::Point<Pixels>,
3994 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3995 editor: Entity<Editor>,
3996 window: &mut Window,
3997 cx: &mut App,
3998 ) -> Vec<AnyElement> {
3999 let point_for_position = position_map.point_for_position(window.mouse_position());
4000
4001 let mut controls = vec![];
4002
4003 let active_positions = [
4004 Some(point_for_position.previous_valid),
4005 newest_cursor_position,
4006 ];
4007
4008 for (hunk, _) in display_hunks {
4009 if let DisplayDiffHunk::Unfolded {
4010 display_row_range,
4011 multi_buffer_range,
4012 status,
4013 ..
4014 } = &hunk
4015 {
4016 if display_row_range.start < row_range.start
4017 || display_row_range.start >= row_range.end
4018 {
4019 continue;
4020 }
4021 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4022 if row_infos[row_ix].diff_status.is_none() {
4023 continue;
4024 }
4025 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
4026 && *status != DiffHunkStatus::Added
4027 {
4028 continue;
4029 }
4030 if active_positions
4031 .iter()
4032 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4033 {
4034 let y = display_row_range.start.as_f32() * line_height
4035 + text_hitbox.bounds.top()
4036 - scroll_pixel_position.y;
4037 let x = text_hitbox.bounds.right() - px(100.);
4038
4039 let mut element = diff_hunk_controls(
4040 display_row_range.start.0,
4041 multi_buffer_range.clone(),
4042 line_height,
4043 &editor,
4044 cx,
4045 );
4046 element.prepaint_as_root(
4047 gpui::Point::new(x, y),
4048 size(px(100.0), line_height).into(),
4049 window,
4050 cx,
4051 );
4052 controls.push(element);
4053 }
4054 }
4055 }
4056
4057 controls
4058 }
4059
4060 #[allow(clippy::too_many_arguments)]
4061 fn layout_signature_help(
4062 &self,
4063 hitbox: &Hitbox,
4064 content_origin: gpui::Point<Pixels>,
4065 scroll_pixel_position: gpui::Point<Pixels>,
4066 newest_selection_head: Option<DisplayPoint>,
4067 start_row: DisplayRow,
4068 line_layouts: &[LineWithInvisibles],
4069 line_height: Pixels,
4070 em_width: Pixels,
4071 window: &mut Window,
4072 cx: &mut App,
4073 ) {
4074 if !self.editor.focus_handle(cx).is_focused(window) {
4075 return;
4076 }
4077 let Some(newest_selection_head) = newest_selection_head else {
4078 return;
4079 };
4080 let selection_row = newest_selection_head.row();
4081 if selection_row < start_row {
4082 return;
4083 }
4084 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4085 else {
4086 return;
4087 };
4088
4089 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4090 - scroll_pixel_position.x
4091 + content_origin.x;
4092 let start_y =
4093 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4094
4095 let max_size = size(
4096 (120. * em_width) // Default size
4097 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4098 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4099 (16. * line_height) // Default size
4100 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4101 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4102 );
4103
4104 let maybe_element = self.editor.update(cx, |editor, cx| {
4105 if let Some(popover) = editor.signature_help_state.popover_mut() {
4106 let element = popover.render(
4107 &self.style,
4108 max_size,
4109 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4110 cx,
4111 );
4112 Some(element)
4113 } else {
4114 None
4115 }
4116 });
4117 if let Some(mut element) = maybe_element {
4118 let window_size = window.viewport_size();
4119 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4120 let mut point = point(start_x, start_y - size.height);
4121
4122 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4123 if point.x + size.width >= window_size.width {
4124 point.x = window_size.width - size.width;
4125 }
4126
4127 window.defer_draw(element, point, 1)
4128 }
4129 }
4130
4131 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4132 window.paint_layer(layout.hitbox.bounds, |window| {
4133 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4134 let gutter_bg = cx.theme().colors().editor_gutter_background;
4135 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4136 window.paint_quad(fill(
4137 layout.position_map.text_hitbox.bounds,
4138 self.style.background,
4139 ));
4140
4141 if let EditorMode::Full = layout.mode {
4142 let mut active_rows = layout.active_rows.iter().peekable();
4143 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4144 let mut end_row = start_row.0;
4145 while active_rows
4146 .peek()
4147 .map_or(false, |(active_row, has_selection)| {
4148 active_row.0 == end_row + 1
4149 && *has_selection == contains_non_empty_selection
4150 })
4151 {
4152 active_rows.next().unwrap();
4153 end_row += 1;
4154 }
4155
4156 if !contains_non_empty_selection {
4157 let highlight_h_range =
4158 match layout.position_map.snapshot.current_line_highlight {
4159 CurrentLineHighlight::Gutter => Some(Range {
4160 start: layout.hitbox.left(),
4161 end: layout.gutter_hitbox.right(),
4162 }),
4163 CurrentLineHighlight::Line => Some(Range {
4164 start: layout.position_map.text_hitbox.bounds.left(),
4165 end: layout.position_map.text_hitbox.bounds.right(),
4166 }),
4167 CurrentLineHighlight::All => Some(Range {
4168 start: layout.hitbox.left(),
4169 end: layout.hitbox.right(),
4170 }),
4171 CurrentLineHighlight::None => None,
4172 };
4173 if let Some(range) = highlight_h_range {
4174 let active_line_bg = cx.theme().colors().editor_active_line_background;
4175 let bounds = Bounds {
4176 origin: point(
4177 range.start,
4178 layout.hitbox.origin.y
4179 + (start_row.as_f32() - scroll_top)
4180 * layout.position_map.line_height,
4181 ),
4182 size: size(
4183 range.end - range.start,
4184 layout.position_map.line_height
4185 * (end_row - start_row.0 + 1) as f32,
4186 ),
4187 };
4188 window.paint_quad(fill(bounds, active_line_bg));
4189 }
4190 }
4191 }
4192
4193 let mut paint_highlight =
4194 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4195 let origin = point(
4196 layout.hitbox.origin.x,
4197 layout.hitbox.origin.y
4198 + (highlight_row_start.as_f32() - scroll_top)
4199 * layout.position_map.line_height,
4200 );
4201 let size = size(
4202 layout.hitbox.size.width,
4203 layout.position_map.line_height
4204 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4205 );
4206 window.paint_quad(fill(Bounds { origin, size }, color));
4207 };
4208
4209 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4210 for (&new_row, &new_color) in &layout.highlighted_rows {
4211 match &mut current_paint {
4212 Some((current_color, current_range)) => {
4213 let current_color = *current_color;
4214 let new_range_started = current_color != new_color
4215 || current_range.end.next_row() != new_row;
4216 if new_range_started {
4217 paint_highlight(
4218 current_range.start,
4219 current_range.end,
4220 current_color,
4221 );
4222 current_paint = Some((new_color, new_row..new_row));
4223 continue;
4224 } else {
4225 current_range.end = current_range.end.next_row();
4226 }
4227 }
4228 None => current_paint = Some((new_color, new_row..new_row)),
4229 };
4230 }
4231 if let Some((color, range)) = current_paint {
4232 paint_highlight(range.start, range.end, color);
4233 }
4234
4235 let scroll_left =
4236 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4237
4238 for (wrap_position, active) in layout.wrap_guides.iter() {
4239 let x = (layout.position_map.text_hitbox.origin.x
4240 + *wrap_position
4241 + layout.position_map.em_width / 2.)
4242 - scroll_left;
4243
4244 let show_scrollbars = {
4245 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4246
4247 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4248 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4249 };
4250
4251 if x < layout.position_map.text_hitbox.origin.x
4252 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4253 {
4254 continue;
4255 }
4256
4257 let color = if *active {
4258 cx.theme().colors().editor_active_wrap_guide
4259 } else {
4260 cx.theme().colors().editor_wrap_guide
4261 };
4262 window.paint_quad(fill(
4263 Bounds {
4264 origin: point(x, layout.position_map.text_hitbox.origin.y),
4265 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4266 },
4267 color,
4268 ));
4269 }
4270 }
4271 })
4272 }
4273
4274 fn paint_indent_guides(
4275 &mut self,
4276 layout: &mut EditorLayout,
4277 window: &mut Window,
4278 cx: &mut App,
4279 ) {
4280 let Some(indent_guides) = &layout.indent_guides else {
4281 return;
4282 };
4283
4284 let faded_color = |color: Hsla, alpha: f32| {
4285 let mut faded = color;
4286 faded.a = alpha;
4287 faded
4288 };
4289
4290 for indent_guide in indent_guides {
4291 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4292 let settings = indent_guide.settings;
4293
4294 // TODO fixed for now, expose them through themes later
4295 const INDENT_AWARE_ALPHA: f32 = 0.2;
4296 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4297 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4298 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4299
4300 let line_color = match (settings.coloring, indent_guide.active) {
4301 (IndentGuideColoring::Disabled, _) => None,
4302 (IndentGuideColoring::Fixed, false) => {
4303 Some(cx.theme().colors().editor_indent_guide)
4304 }
4305 (IndentGuideColoring::Fixed, true) => {
4306 Some(cx.theme().colors().editor_indent_guide_active)
4307 }
4308 (IndentGuideColoring::IndentAware, false) => {
4309 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4310 }
4311 (IndentGuideColoring::IndentAware, true) => {
4312 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4313 }
4314 };
4315
4316 let background_color = match (settings.background_coloring, indent_guide.active) {
4317 (IndentGuideBackgroundColoring::Disabled, _) => None,
4318 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4319 indent_accent_colors,
4320 INDENT_AWARE_BACKGROUND_ALPHA,
4321 )),
4322 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4323 indent_accent_colors,
4324 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4325 )),
4326 };
4327
4328 let requested_line_width = if indent_guide.active {
4329 settings.active_line_width
4330 } else {
4331 settings.line_width
4332 }
4333 .clamp(1, 10);
4334 let mut line_indicator_width = 0.;
4335 if let Some(color) = line_color {
4336 window.paint_quad(fill(
4337 Bounds {
4338 origin: indent_guide.origin,
4339 size: size(px(requested_line_width as f32), indent_guide.length),
4340 },
4341 color,
4342 ));
4343 line_indicator_width = requested_line_width as f32;
4344 }
4345
4346 if let Some(color) = background_color {
4347 let width = indent_guide.single_indent_width - px(line_indicator_width);
4348 window.paint_quad(fill(
4349 Bounds {
4350 origin: point(
4351 indent_guide.origin.x + px(line_indicator_width),
4352 indent_guide.origin.y,
4353 ),
4354 size: size(width, indent_guide.length),
4355 },
4356 color,
4357 ));
4358 }
4359 }
4360 }
4361
4362 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4363 let is_singleton = self.editor.read(cx).is_singleton(cx);
4364
4365 let line_height = layout.position_map.line_height;
4366 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4367
4368 for LineNumberLayout {
4369 shaped_line,
4370 hitbox,
4371 display_row,
4372 } in layout.line_numbers.values()
4373 {
4374 let Some(hitbox) = hitbox else {
4375 continue;
4376 };
4377
4378 let is_active = layout.active_rows.contains_key(&display_row);
4379
4380 let color = if is_active {
4381 cx.theme().colors().editor_active_line_number
4382 } else if !is_singleton && hitbox.is_hovered(window) {
4383 cx.theme().colors().editor_hover_line_number
4384 } else {
4385 cx.theme().colors().editor_line_number
4386 };
4387
4388 let Some(line) = self
4389 .shape_line_number(shaped_line.text.clone(), color, window)
4390 .log_err()
4391 else {
4392 continue;
4393 };
4394 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4395 continue;
4396 };
4397 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4398 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4399 if is_singleton {
4400 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4401 } else {
4402 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4403 }
4404 }
4405 }
4406
4407 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4408 if layout.display_hunks.is_empty() {
4409 return;
4410 }
4411
4412 let line_height = layout.position_map.line_height;
4413 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4414 for (hunk, hitbox) in &layout.display_hunks {
4415 let hunk_to_paint = match hunk {
4416 DisplayDiffHunk::Folded { .. } => {
4417 let hunk_bounds = Self::diff_hunk_bounds(
4418 &layout.position_map.snapshot,
4419 line_height,
4420 layout.gutter_hitbox.bounds,
4421 hunk,
4422 );
4423 Some((
4424 hunk_bounds,
4425 cx.theme().status().modified,
4426 Corners::all(px(0.)),
4427 ))
4428 }
4429 DisplayDiffHunk::Unfolded {
4430 status,
4431 display_row_range,
4432 ..
4433 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4434 DiffHunkStatus::Added => (
4435 hunk_hitbox.bounds,
4436 cx.theme().status().created,
4437 Corners::all(px(0.)),
4438 ),
4439 DiffHunkStatus::Modified => (
4440 hunk_hitbox.bounds,
4441 cx.theme().status().modified,
4442 Corners::all(px(0.)),
4443 ),
4444 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4445 hunk_hitbox.bounds,
4446 cx.theme().status().deleted,
4447 Corners::all(px(0.)),
4448 ),
4449 DiffHunkStatus::Removed => (
4450 Bounds::new(
4451 point(
4452 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4453 hunk_hitbox.origin.y,
4454 ),
4455 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4456 ),
4457 cx.theme().status().deleted,
4458 Corners::all(1. * line_height),
4459 ),
4460 }),
4461 };
4462
4463 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4464 window.paint_quad(quad(
4465 hunk_bounds,
4466 corner_radii,
4467 background_color,
4468 Edges::default(),
4469 transparent_black(),
4470 ));
4471 }
4472 }
4473 });
4474 }
4475
4476 fn diff_hunk_bounds(
4477 snapshot: &EditorSnapshot,
4478 line_height: Pixels,
4479 gutter_bounds: Bounds<Pixels>,
4480 hunk: &DisplayDiffHunk,
4481 ) -> Bounds<Pixels> {
4482 let scroll_position = snapshot.scroll_position();
4483 let scroll_top = scroll_position.y * line_height;
4484 let gutter_strip_width = (0.275 * line_height).floor();
4485
4486 match hunk {
4487 DisplayDiffHunk::Folded { display_row, .. } => {
4488 let start_y = display_row.as_f32() * line_height - scroll_top;
4489 let end_y = start_y + line_height;
4490 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4491 let highlight_size = size(gutter_strip_width, end_y - start_y);
4492 Bounds::new(highlight_origin, highlight_size)
4493 }
4494 DisplayDiffHunk::Unfolded {
4495 display_row_range,
4496 status,
4497 ..
4498 } => {
4499 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4500 let row = display_row_range.start;
4501
4502 let offset = line_height / 2.;
4503 let start_y = row.as_f32() * line_height - offset - scroll_top;
4504 let end_y = start_y + line_height;
4505
4506 let width = (0.35 * line_height).floor();
4507 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4508 let highlight_size = size(width, end_y - start_y);
4509 Bounds::new(highlight_origin, highlight_size)
4510 } else {
4511 let start_row = display_row_range.start;
4512 let end_row = display_row_range.end;
4513 // If we're in a multibuffer, row range span might include an
4514 // excerpt header, so if we were to draw the marker straight away,
4515 // the hunk might include the rows of that header.
4516 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4517 // Instead, we simply check whether the range we're dealing with includes
4518 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4519 let end_row_in_current_excerpt = snapshot
4520 .blocks_in_range(start_row..end_row)
4521 .find_map(|(start_row, block)| {
4522 if matches!(block, Block::ExcerptBoundary { .. }) {
4523 Some(start_row)
4524 } else {
4525 None
4526 }
4527 })
4528 .unwrap_or(end_row);
4529
4530 let start_y = start_row.as_f32() * line_height - scroll_top;
4531 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4532
4533 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4534 let highlight_size = size(gutter_strip_width, end_y - start_y);
4535 Bounds::new(highlight_origin, highlight_size)
4536 }
4537 }
4538 }
4539 }
4540
4541 fn paint_gutter_indicators(
4542 &self,
4543 layout: &mut EditorLayout,
4544 window: &mut Window,
4545 cx: &mut App,
4546 ) {
4547 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4548 window.with_element_namespace("crease_toggles", |window| {
4549 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4550 crease_toggle.paint(window, cx);
4551 }
4552 });
4553
4554 for test_indicator in layout.test_indicators.iter_mut() {
4555 test_indicator.paint(window, cx);
4556 }
4557
4558 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4559 indicator.paint(window, cx);
4560 }
4561 });
4562 }
4563
4564 fn paint_gutter_highlights(
4565 &self,
4566 layout: &mut EditorLayout,
4567 window: &mut Window,
4568 cx: &mut App,
4569 ) {
4570 for (_, hunk_hitbox) in &layout.display_hunks {
4571 if let Some(hunk_hitbox) = hunk_hitbox {
4572 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4573 }
4574 }
4575
4576 let show_git_gutter = layout
4577 .position_map
4578 .snapshot
4579 .show_git_diff_gutter
4580 .unwrap_or_else(|| {
4581 matches!(
4582 ProjectSettings::get_global(cx).git.git_gutter,
4583 Some(GitGutterSetting::TrackedFiles)
4584 )
4585 });
4586 if show_git_gutter {
4587 Self::paint_diff_hunks(layout, window, cx)
4588 }
4589
4590 let highlight_width = 0.275 * layout.position_map.line_height;
4591 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4592 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4593 for (range, color) in &layout.highlighted_gutter_ranges {
4594 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4595 layout.visible_display_row_range.start - DisplayRow(1)
4596 } else {
4597 range.start.row()
4598 };
4599 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4600 layout.visible_display_row_range.end + DisplayRow(1)
4601 } else {
4602 range.end.row()
4603 };
4604
4605 let start_y = layout.gutter_hitbox.top()
4606 + start_row.0 as f32 * layout.position_map.line_height
4607 - layout.position_map.scroll_pixel_position.y;
4608 let end_y = layout.gutter_hitbox.top()
4609 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4610 - layout.position_map.scroll_pixel_position.y;
4611 let bounds = Bounds::from_corners(
4612 point(layout.gutter_hitbox.left(), start_y),
4613 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4614 );
4615 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4616 }
4617 });
4618 }
4619
4620 fn paint_blamed_display_rows(
4621 &self,
4622 layout: &mut EditorLayout,
4623 window: &mut Window,
4624 cx: &mut App,
4625 ) {
4626 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4627 return;
4628 };
4629
4630 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4631 for mut blame_element in blamed_display_rows.into_iter() {
4632 blame_element.paint(window, cx);
4633 }
4634 })
4635 }
4636
4637 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4638 window.with_content_mask(
4639 Some(ContentMask {
4640 bounds: layout.position_map.text_hitbox.bounds,
4641 }),
4642 |window| {
4643 let cursor_style = if self
4644 .editor
4645 .read(cx)
4646 .hovered_link_state
4647 .as_ref()
4648 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4649 {
4650 CursorStyle::PointingHand
4651 } else {
4652 CursorStyle::IBeam
4653 };
4654 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4655
4656 let invisible_display_ranges = self.paint_highlights(layout, window);
4657 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4658 self.paint_redactions(layout, window);
4659 self.paint_cursors(layout, window, cx);
4660 self.paint_inline_blame(layout, window, cx);
4661 self.paint_diff_hunk_controls(layout, window, cx);
4662 window.with_element_namespace("crease_trailers", |window| {
4663 for trailer in layout.crease_trailers.iter_mut().flatten() {
4664 trailer.element.paint(window, cx);
4665 }
4666 });
4667 },
4668 )
4669 }
4670
4671 fn paint_highlights(
4672 &mut self,
4673 layout: &mut EditorLayout,
4674 window: &mut Window,
4675 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4676 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4677 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4678 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4679 for (range, color) in &layout.highlighted_ranges {
4680 self.paint_highlighted_range(
4681 range.clone(),
4682 *color,
4683 Pixels::ZERO,
4684 line_end_overshoot,
4685 layout,
4686 window,
4687 );
4688 }
4689
4690 let corner_radius = 0.15 * layout.position_map.line_height;
4691
4692 for (player_color, selections) in &layout.selections {
4693 for selection in selections.iter() {
4694 self.paint_highlighted_range(
4695 selection.range.clone(),
4696 player_color.selection,
4697 corner_radius,
4698 corner_radius * 2.,
4699 layout,
4700 window,
4701 );
4702
4703 if selection.is_local && !selection.range.is_empty() {
4704 invisible_display_ranges.push(selection.range.clone());
4705 }
4706 }
4707 }
4708 invisible_display_ranges
4709 })
4710 }
4711
4712 fn paint_lines(
4713 &mut self,
4714 invisible_display_ranges: &[Range<DisplayPoint>],
4715 layout: &mut EditorLayout,
4716 window: &mut Window,
4717 cx: &mut App,
4718 ) {
4719 let whitespace_setting = self
4720 .editor
4721 .read(cx)
4722 .buffer
4723 .read(cx)
4724 .settings_at(0, cx)
4725 .show_whitespaces;
4726
4727 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4728 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4729 line_with_invisibles.draw(
4730 layout,
4731 row,
4732 layout.content_origin,
4733 whitespace_setting,
4734 invisible_display_ranges,
4735 window,
4736 cx,
4737 )
4738 }
4739
4740 for line_element in &mut layout.line_elements {
4741 line_element.paint(window, cx);
4742 }
4743 }
4744
4745 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4746 if layout.redacted_ranges.is_empty() {
4747 return;
4748 }
4749
4750 let line_end_overshoot = layout.line_end_overshoot();
4751
4752 // A softer than perfect black
4753 let redaction_color = gpui::rgb(0x0e1111);
4754
4755 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4756 for range in layout.redacted_ranges.iter() {
4757 self.paint_highlighted_range(
4758 range.clone(),
4759 redaction_color.into(),
4760 Pixels::ZERO,
4761 line_end_overshoot,
4762 layout,
4763 window,
4764 );
4765 }
4766 });
4767 }
4768
4769 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4770 for cursor in &mut layout.visible_cursors {
4771 cursor.paint(layout.content_origin, window, cx);
4772 }
4773 }
4774
4775 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4776 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4777
4778 if let Some(scrollbar_layout) = scrollbar_x {
4779 let hitbox = scrollbar_layout.hitbox.clone();
4780 let text_unit_size = scrollbar_layout.text_unit_size;
4781 let visible_range = scrollbar_layout.visible_range.clone();
4782 let thumb_bounds = scrollbar_layout.thumb_bounds();
4783
4784 if scrollbar_layout.visible {
4785 window.paint_layer(hitbox.bounds, |window| {
4786 window.paint_quad(quad(
4787 hitbox.bounds,
4788 Corners::default(),
4789 cx.theme().colors().scrollbar_track_background,
4790 Edges {
4791 top: Pixels::ZERO,
4792 right: Pixels::ZERO,
4793 bottom: Pixels::ZERO,
4794 left: Pixels::ZERO,
4795 },
4796 cx.theme().colors().scrollbar_track_border,
4797 ));
4798
4799 window.paint_quad(quad(
4800 thumb_bounds,
4801 Corners::default(),
4802 cx.theme().colors().scrollbar_thumb_background,
4803 Edges {
4804 top: Pixels::ZERO,
4805 right: Pixels::ZERO,
4806 bottom: Pixels::ZERO,
4807 left: ScrollbarLayout::BORDER_WIDTH,
4808 },
4809 cx.theme().colors().scrollbar_thumb_border,
4810 ));
4811 })
4812 }
4813
4814 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4815
4816 window.on_mouse_event({
4817 let editor = self.editor.clone();
4818
4819 // there may be a way to avoid this clone
4820 let hitbox = hitbox.clone();
4821
4822 let mut mouse_position = window.mouse_position();
4823 move |event: &MouseMoveEvent, phase, window, cx| {
4824 if phase == DispatchPhase::Capture {
4825 return;
4826 }
4827
4828 editor.update(cx, |editor, cx| {
4829 if event.pressed_button == Some(MouseButton::Left)
4830 && editor
4831 .scroll_manager
4832 .is_dragging_scrollbar(Axis::Horizontal)
4833 {
4834 let x = mouse_position.x;
4835 let new_x = event.position.x;
4836 if (hitbox.left()..hitbox.right()).contains(&x) {
4837 let mut position = editor.scroll_position(cx);
4838
4839 position.x += (new_x - x) / text_unit_size;
4840 if position.x < 0.0 {
4841 position.x = 0.0;
4842 }
4843 editor.set_scroll_position(position, window, cx);
4844 }
4845
4846 cx.stop_propagation();
4847 } else {
4848 editor.scroll_manager.set_is_dragging_scrollbar(
4849 Axis::Horizontal,
4850 false,
4851 cx,
4852 );
4853
4854 if hitbox.is_hovered(window) {
4855 editor.scroll_manager.show_scrollbar(window, cx);
4856 }
4857 }
4858 mouse_position = event.position;
4859 })
4860 }
4861 });
4862
4863 if self
4864 .editor
4865 .read(cx)
4866 .scroll_manager
4867 .is_dragging_scrollbar(Axis::Horizontal)
4868 {
4869 window.on_mouse_event({
4870 let editor = self.editor.clone();
4871 move |_: &MouseUpEvent, phase, _, cx| {
4872 if phase == DispatchPhase::Capture {
4873 return;
4874 }
4875
4876 editor.update(cx, |editor, cx| {
4877 editor.scroll_manager.set_is_dragging_scrollbar(
4878 Axis::Horizontal,
4879 false,
4880 cx,
4881 );
4882 cx.stop_propagation();
4883 });
4884 }
4885 });
4886 } else {
4887 window.on_mouse_event({
4888 let editor = self.editor.clone();
4889
4890 move |event: &MouseDownEvent, phase, window, cx| {
4891 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4892 return;
4893 }
4894
4895 editor.update(cx, |editor, cx| {
4896 editor.scroll_manager.set_is_dragging_scrollbar(
4897 Axis::Horizontal,
4898 true,
4899 cx,
4900 );
4901
4902 let x = event.position.x;
4903
4904 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4905 let center_row =
4906 ((x - hitbox.left()) / text_unit_size).round() as u32;
4907 let top_row = center_row.saturating_sub(
4908 (visible_range.end - visible_range.start) as u32 / 2,
4909 );
4910
4911 let mut position = editor.scroll_position(cx);
4912 position.x = top_row as f32;
4913
4914 editor.set_scroll_position(position, window, cx);
4915 } else {
4916 editor.scroll_manager.show_scrollbar(window, cx);
4917 }
4918
4919 cx.stop_propagation();
4920 });
4921 }
4922 });
4923 }
4924 }
4925
4926 if let Some(scrollbar_layout) = scrollbar_y {
4927 let hitbox = scrollbar_layout.hitbox.clone();
4928 let text_unit_size = scrollbar_layout.text_unit_size;
4929 let visible_range = scrollbar_layout.visible_range.clone();
4930 let thumb_bounds = scrollbar_layout.thumb_bounds();
4931
4932 if scrollbar_layout.visible {
4933 window.paint_layer(hitbox.bounds, |window| {
4934 window.paint_quad(quad(
4935 hitbox.bounds,
4936 Corners::default(),
4937 cx.theme().colors().scrollbar_track_background,
4938 Edges {
4939 top: Pixels::ZERO,
4940 right: Pixels::ZERO,
4941 bottom: Pixels::ZERO,
4942 left: ScrollbarLayout::BORDER_WIDTH,
4943 },
4944 cx.theme().colors().scrollbar_track_border,
4945 ));
4946
4947 let fast_markers =
4948 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4949 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4950 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4951
4952 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4953 for marker in markers.iter().chain(&fast_markers) {
4954 let mut marker = marker.clone();
4955 marker.bounds.origin += hitbox.origin;
4956 window.paint_quad(marker);
4957 }
4958
4959 window.paint_quad(quad(
4960 thumb_bounds,
4961 Corners::default(),
4962 cx.theme().colors().scrollbar_thumb_background,
4963 Edges {
4964 top: Pixels::ZERO,
4965 right: Pixels::ZERO,
4966 bottom: Pixels::ZERO,
4967 left: ScrollbarLayout::BORDER_WIDTH,
4968 },
4969 cx.theme().colors().scrollbar_thumb_border,
4970 ));
4971 });
4972 }
4973
4974 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4975
4976 window.on_mouse_event({
4977 let editor = self.editor.clone();
4978
4979 let hitbox = hitbox.clone();
4980
4981 let mut mouse_position = window.mouse_position();
4982 move |event: &MouseMoveEvent, phase, window, cx| {
4983 if phase == DispatchPhase::Capture {
4984 return;
4985 }
4986
4987 editor.update(cx, |editor, cx| {
4988 if event.pressed_button == Some(MouseButton::Left)
4989 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4990 {
4991 let y = mouse_position.y;
4992 let new_y = event.position.y;
4993 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4994 let mut position = editor.scroll_position(cx);
4995 position.y += (new_y - y) / text_unit_size;
4996 if position.y < 0.0 {
4997 position.y = 0.0;
4998 }
4999 editor.set_scroll_position(position, window, cx);
5000 }
5001 } else {
5002 editor.scroll_manager.set_is_dragging_scrollbar(
5003 Axis::Vertical,
5004 false,
5005 cx,
5006 );
5007
5008 if hitbox.is_hovered(window) {
5009 editor.scroll_manager.show_scrollbar(window, cx);
5010 }
5011 }
5012 mouse_position = event.position;
5013 })
5014 }
5015 });
5016
5017 if self
5018 .editor
5019 .read(cx)
5020 .scroll_manager
5021 .is_dragging_scrollbar(Axis::Vertical)
5022 {
5023 window.on_mouse_event({
5024 let editor = self.editor.clone();
5025 move |_: &MouseUpEvent, phase, _, cx| {
5026 if phase == DispatchPhase::Capture {
5027 return;
5028 }
5029
5030 editor.update(cx, |editor, cx| {
5031 editor.scroll_manager.set_is_dragging_scrollbar(
5032 Axis::Vertical,
5033 false,
5034 cx,
5035 );
5036 cx.stop_propagation();
5037 });
5038 }
5039 });
5040 } else {
5041 window.on_mouse_event({
5042 let editor = self.editor.clone();
5043
5044 move |event: &MouseDownEvent, phase, window, cx| {
5045 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5046 return;
5047 }
5048
5049 editor.update(cx, |editor, cx| {
5050 editor.scroll_manager.set_is_dragging_scrollbar(
5051 Axis::Vertical,
5052 true,
5053 cx,
5054 );
5055
5056 let y = event.position.y;
5057 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5058 let center_row =
5059 ((y - hitbox.top()) / text_unit_size).round() as u32;
5060 let top_row = center_row.saturating_sub(
5061 (visible_range.end - visible_range.start) as u32 / 2,
5062 );
5063 let mut position = editor.scroll_position(cx);
5064 position.y = top_row as f32;
5065 editor.set_scroll_position(position, window, cx);
5066 } else {
5067 editor.scroll_manager.show_scrollbar(window, cx);
5068 }
5069
5070 cx.stop_propagation();
5071 });
5072 }
5073 });
5074 }
5075 }
5076 }
5077
5078 fn collect_fast_scrollbar_markers(
5079 &self,
5080 layout: &EditorLayout,
5081 scrollbar_layout: &ScrollbarLayout,
5082 cx: &mut App,
5083 ) -> Vec<PaintQuad> {
5084 const LIMIT: usize = 100;
5085 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5086 return vec![];
5087 }
5088 let cursor_ranges = layout
5089 .cursors
5090 .iter()
5091 .map(|(point, color)| ColoredRange {
5092 start: point.row(),
5093 end: point.row(),
5094 color: *color,
5095 })
5096 .collect_vec();
5097 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5098 }
5099
5100 fn refresh_slow_scrollbar_markers(
5101 &self,
5102 layout: &EditorLayout,
5103 scrollbar_layout: &ScrollbarLayout,
5104 window: &mut Window,
5105 cx: &mut App,
5106 ) {
5107 self.editor.update(cx, |editor, cx| {
5108 if !editor.is_singleton(cx)
5109 || !editor
5110 .scrollbar_marker_state
5111 .should_refresh(scrollbar_layout.hitbox.size)
5112 {
5113 return;
5114 }
5115
5116 let scrollbar_layout = scrollbar_layout.clone();
5117 let background_highlights = editor.background_highlights.clone();
5118 let snapshot = layout.position_map.snapshot.clone();
5119 let theme = cx.theme().clone();
5120 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5121
5122 editor.scrollbar_marker_state.dirty = false;
5123 editor.scrollbar_marker_state.pending_refresh =
5124 Some(cx.spawn_in(window, |editor, mut cx| async move {
5125 let scrollbar_size = scrollbar_layout.hitbox.size;
5126 let scrollbar_markers = cx
5127 .background_executor()
5128 .spawn(async move {
5129 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5130 let mut marker_quads = Vec::new();
5131 if scrollbar_settings.git_diff {
5132 let marker_row_ranges =
5133 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5134 let start_display_row =
5135 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5136 .to_display_point(&snapshot.display_snapshot)
5137 .row();
5138 let mut end_display_row =
5139 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5140 .to_display_point(&snapshot.display_snapshot)
5141 .row();
5142 if end_display_row != start_display_row {
5143 end_display_row.0 -= 1;
5144 }
5145 let color = match &hunk.status() {
5146 DiffHunkStatus::Added => theme.status().created,
5147 DiffHunkStatus::Modified => theme.status().modified,
5148 DiffHunkStatus::Removed => theme.status().deleted,
5149 };
5150 ColoredRange {
5151 start: start_display_row,
5152 end: end_display_row,
5153 color,
5154 }
5155 });
5156
5157 marker_quads.extend(
5158 scrollbar_layout
5159 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5160 );
5161 }
5162
5163 for (background_highlight_id, (_, background_ranges)) in
5164 background_highlights.iter()
5165 {
5166 let is_search_highlights = *background_highlight_id
5167 == TypeId::of::<BufferSearchHighlights>();
5168 let is_symbol_occurrences = *background_highlight_id
5169 == TypeId::of::<DocumentHighlightRead>()
5170 || *background_highlight_id
5171 == TypeId::of::<DocumentHighlightWrite>();
5172 if (is_search_highlights && scrollbar_settings.search_results)
5173 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5174 {
5175 let mut color = theme.status().info;
5176 if is_symbol_occurrences {
5177 color.fade_out(0.5);
5178 }
5179 let marker_row_ranges = background_ranges.iter().map(|range| {
5180 let display_start = range
5181 .start
5182 .to_display_point(&snapshot.display_snapshot);
5183 let display_end =
5184 range.end.to_display_point(&snapshot.display_snapshot);
5185 ColoredRange {
5186 start: display_start.row(),
5187 end: display_end.row(),
5188 color,
5189 }
5190 });
5191 marker_quads.extend(
5192 scrollbar_layout
5193 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5194 );
5195 }
5196 }
5197
5198 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5199 let diagnostics = snapshot
5200 .buffer_snapshot
5201 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5202 // Don't show diagnostics the user doesn't care about
5203 .filter(|diagnostic| {
5204 match (
5205 scrollbar_settings.diagnostics,
5206 diagnostic.diagnostic.severity,
5207 ) {
5208 (ScrollbarDiagnostics::All, _) => true,
5209 (
5210 ScrollbarDiagnostics::Error,
5211 DiagnosticSeverity::ERROR,
5212 ) => true,
5213 (
5214 ScrollbarDiagnostics::Warning,
5215 DiagnosticSeverity::ERROR
5216 | DiagnosticSeverity::WARNING,
5217 ) => true,
5218 (
5219 ScrollbarDiagnostics::Information,
5220 DiagnosticSeverity::ERROR
5221 | DiagnosticSeverity::WARNING
5222 | DiagnosticSeverity::INFORMATION,
5223 ) => true,
5224 (_, _) => false,
5225 }
5226 })
5227 // We want to sort by severity, in order to paint the most severe diagnostics last.
5228 .sorted_by_key(|diagnostic| {
5229 std::cmp::Reverse(diagnostic.diagnostic.severity)
5230 });
5231
5232 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5233 let start_display = diagnostic
5234 .range
5235 .start
5236 .to_display_point(&snapshot.display_snapshot);
5237 let end_display = diagnostic
5238 .range
5239 .end
5240 .to_display_point(&snapshot.display_snapshot);
5241 let color = match diagnostic.diagnostic.severity {
5242 DiagnosticSeverity::ERROR => theme.status().error,
5243 DiagnosticSeverity::WARNING => theme.status().warning,
5244 DiagnosticSeverity::INFORMATION => theme.status().info,
5245 _ => theme.status().hint,
5246 };
5247 ColoredRange {
5248 start: start_display.row(),
5249 end: end_display.row(),
5250 color,
5251 }
5252 });
5253 marker_quads.extend(
5254 scrollbar_layout
5255 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5256 );
5257 }
5258
5259 Arc::from(marker_quads)
5260 })
5261 .await;
5262
5263 editor.update(&mut cx, |editor, cx| {
5264 editor.scrollbar_marker_state.markers = scrollbar_markers;
5265 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5266 editor.scrollbar_marker_state.pending_refresh = None;
5267 cx.notify();
5268 })?;
5269
5270 Ok(())
5271 }));
5272 });
5273 }
5274
5275 #[allow(clippy::too_many_arguments)]
5276 fn paint_highlighted_range(
5277 &self,
5278 range: Range<DisplayPoint>,
5279 color: Hsla,
5280 corner_radius: Pixels,
5281 line_end_overshoot: Pixels,
5282 layout: &EditorLayout,
5283 window: &mut Window,
5284 ) {
5285 let start_row = layout.visible_display_row_range.start;
5286 let end_row = layout.visible_display_row_range.end;
5287 if range.start != range.end {
5288 let row_range = if range.end.column() == 0 {
5289 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5290 } else {
5291 cmp::max(range.start.row(), start_row)
5292 ..cmp::min(range.end.row().next_row(), end_row)
5293 };
5294
5295 let highlighted_range = HighlightedRange {
5296 color,
5297 line_height: layout.position_map.line_height,
5298 corner_radius,
5299 start_y: layout.content_origin.y
5300 + row_range.start.as_f32() * layout.position_map.line_height
5301 - layout.position_map.scroll_pixel_position.y,
5302 lines: row_range
5303 .iter_rows()
5304 .map(|row| {
5305 let line_layout =
5306 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5307 HighlightedRangeLine {
5308 start_x: if row == range.start.row() {
5309 layout.content_origin.x
5310 + line_layout.x_for_index(range.start.column() as usize)
5311 - layout.position_map.scroll_pixel_position.x
5312 } else {
5313 layout.content_origin.x
5314 - layout.position_map.scroll_pixel_position.x
5315 },
5316 end_x: if row == range.end.row() {
5317 layout.content_origin.x
5318 + line_layout.x_for_index(range.end.column() as usize)
5319 - layout.position_map.scroll_pixel_position.x
5320 } else {
5321 layout.content_origin.x + line_layout.width + line_end_overshoot
5322 - layout.position_map.scroll_pixel_position.x
5323 },
5324 }
5325 })
5326 .collect(),
5327 };
5328
5329 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5330 }
5331 }
5332
5333 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5334 if let Some(mut inline_blame) = layout.inline_blame.take() {
5335 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5336 inline_blame.paint(window, cx);
5337 })
5338 }
5339 }
5340
5341 fn paint_diff_hunk_controls(
5342 &mut self,
5343 layout: &mut EditorLayout,
5344 window: &mut Window,
5345 cx: &mut App,
5346 ) {
5347 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5348 diff_hunk_control.paint(window, cx);
5349 }
5350 }
5351
5352 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5353 for mut block in layout.blocks.drain(..) {
5354 block.element.paint(window, cx);
5355 }
5356 }
5357
5358 fn paint_inline_completion_popover(
5359 &mut self,
5360 layout: &mut EditorLayout,
5361 window: &mut Window,
5362 cx: &mut App,
5363 ) {
5364 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5365 inline_completion_popover.paint(window, cx);
5366 }
5367 }
5368
5369 fn paint_mouse_context_menu(
5370 &mut self,
5371 layout: &mut EditorLayout,
5372 window: &mut Window,
5373 cx: &mut App,
5374 ) {
5375 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5376 mouse_context_menu.paint(window, cx);
5377 }
5378 }
5379
5380 fn paint_scroll_wheel_listener(
5381 &mut self,
5382 layout: &EditorLayout,
5383 window: &mut Window,
5384 cx: &mut App,
5385 ) {
5386 window.on_mouse_event({
5387 let position_map = layout.position_map.clone();
5388 let editor = self.editor.clone();
5389 let hitbox = layout.hitbox.clone();
5390 let mut delta = ScrollDelta::default();
5391
5392 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5393 // accidentally turn off their scrolling.
5394 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5395
5396 move |event: &ScrollWheelEvent, phase, window, cx| {
5397 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5398 delta = delta.coalesce(event.delta);
5399 editor.update(cx, |editor, cx| {
5400 let position_map: &PositionMap = &position_map;
5401
5402 let line_height = position_map.line_height;
5403 let max_glyph_width = position_map.em_width;
5404 let (delta, axis) = match delta {
5405 gpui::ScrollDelta::Pixels(mut pixels) => {
5406 //Trackpad
5407 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5408 (pixels, axis)
5409 }
5410
5411 gpui::ScrollDelta::Lines(lines) => {
5412 //Not trackpad
5413 let pixels =
5414 point(lines.x * max_glyph_width, lines.y * line_height);
5415 (pixels, None)
5416 }
5417 };
5418
5419 let current_scroll_position = position_map.snapshot.scroll_position();
5420 let x = (current_scroll_position.x * max_glyph_width
5421 - (delta.x * scroll_sensitivity))
5422 / max_glyph_width;
5423 let y = (current_scroll_position.y * line_height
5424 - (delta.y * scroll_sensitivity))
5425 / line_height;
5426 let mut scroll_position =
5427 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5428 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5429 if forbid_vertical_scroll {
5430 scroll_position.y = current_scroll_position.y;
5431 }
5432
5433 if scroll_position != current_scroll_position {
5434 editor.scroll(scroll_position, axis, window, cx);
5435 cx.stop_propagation();
5436 } else if y < 0. {
5437 // Due to clamping, we may fail to detect cases of overscroll to the top;
5438 // We want the scroll manager to get an update in such cases and detect the change of direction
5439 // on the next frame.
5440 cx.notify();
5441 }
5442 });
5443 }
5444 }
5445 });
5446 }
5447
5448 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5449 self.paint_scroll_wheel_listener(layout, window, cx);
5450
5451 window.on_mouse_event({
5452 let position_map = layout.position_map.clone();
5453 let editor = self.editor.clone();
5454 let multi_buffer_range =
5455 layout
5456 .display_hunks
5457 .iter()
5458 .find_map(|(hunk, hunk_hitbox)| match hunk {
5459 DisplayDiffHunk::Folded { .. } => None,
5460 DisplayDiffHunk::Unfolded {
5461 multi_buffer_range, ..
5462 } => {
5463 if hunk_hitbox
5464 .as_ref()
5465 .map(|hitbox| hitbox.is_hovered(window))
5466 .unwrap_or(false)
5467 {
5468 Some(multi_buffer_range.clone())
5469 } else {
5470 None
5471 }
5472 }
5473 });
5474 let line_numbers = layout.line_numbers.clone();
5475
5476 move |event: &MouseDownEvent, phase, window, cx| {
5477 if phase == DispatchPhase::Bubble {
5478 match event.button {
5479 MouseButton::Left => editor.update(cx, |editor, cx| {
5480 let pending_mouse_down = editor
5481 .pending_mouse_down
5482 .get_or_insert_with(Default::default)
5483 .clone();
5484
5485 *pending_mouse_down.borrow_mut() = Some(event.clone());
5486
5487 Self::mouse_left_down(
5488 editor,
5489 event,
5490 multi_buffer_range.clone(),
5491 &position_map,
5492 line_numbers.as_ref(),
5493 window,
5494 cx,
5495 );
5496 }),
5497 MouseButton::Right => editor.update(cx, |editor, cx| {
5498 Self::mouse_right_down(editor, event, &position_map, window, cx);
5499 }),
5500 MouseButton::Middle => editor.update(cx, |editor, cx| {
5501 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5502 }),
5503 _ => {}
5504 };
5505 }
5506 }
5507 });
5508
5509 window.on_mouse_event({
5510 let editor = self.editor.clone();
5511 let position_map = layout.position_map.clone();
5512
5513 move |event: &MouseUpEvent, phase, window, cx| {
5514 if phase == DispatchPhase::Bubble {
5515 editor.update(cx, |editor, cx| {
5516 Self::mouse_up(editor, event, &position_map, window, cx)
5517 });
5518 }
5519 }
5520 });
5521
5522 window.on_mouse_event({
5523 let editor = self.editor.clone();
5524 let position_map = layout.position_map.clone();
5525 let mut captured_mouse_down = None;
5526
5527 move |event: &MouseUpEvent, phase, window, cx| match phase {
5528 // Clear the pending mouse down during the capture phase,
5529 // so that it happens even if another event handler stops
5530 // propagation.
5531 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5532 let pending_mouse_down = editor
5533 .pending_mouse_down
5534 .get_or_insert_with(Default::default)
5535 .clone();
5536
5537 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5538 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5539 captured_mouse_down = pending_mouse_down.take();
5540 window.refresh();
5541 }
5542 }),
5543 // Fire click handlers during the bubble phase.
5544 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5545 if let Some(mouse_down) = captured_mouse_down.take() {
5546 let event = ClickEvent {
5547 down: mouse_down,
5548 up: event.clone(),
5549 };
5550 Self::click(editor, &event, &position_map, window, cx);
5551 }
5552 }),
5553 }
5554 });
5555
5556 window.on_mouse_event({
5557 let position_map = layout.position_map.clone();
5558 let editor = self.editor.clone();
5559
5560 move |event: &MouseMoveEvent, phase, window, cx| {
5561 if phase == DispatchPhase::Bubble {
5562 editor.update(cx, |editor, cx| {
5563 if editor.hover_state.focused(window, cx) {
5564 return;
5565 }
5566 if event.pressed_button == Some(MouseButton::Left)
5567 || event.pressed_button == Some(MouseButton::Middle)
5568 {
5569 Self::mouse_dragged(editor, event, &position_map, window, cx)
5570 }
5571
5572 Self::mouse_moved(editor, event, &position_map, window, cx)
5573 });
5574 }
5575 }
5576 });
5577 }
5578
5579 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5580 bounds.top_right().x - self.style.scrollbar_width
5581 }
5582
5583 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5584 let style = &self.style;
5585 let font_size = style.text.font_size.to_pixels(window.rem_size());
5586 let layout = window
5587 .text_system()
5588 .shape_line(
5589 SharedString::from(" ".repeat(column)),
5590 font_size,
5591 &[TextRun {
5592 len: column,
5593 font: style.text.font(),
5594 color: Hsla::default(),
5595 background_color: None,
5596 underline: None,
5597 strikethrough: None,
5598 }],
5599 )
5600 .unwrap();
5601
5602 layout.width
5603 }
5604
5605 fn max_line_number_width(
5606 &self,
5607 snapshot: &EditorSnapshot,
5608 window: &mut Window,
5609 cx: &mut App,
5610 ) -> Pixels {
5611 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5612 self.column_pixels(digit_count, window, cx)
5613 }
5614
5615 fn shape_line_number(
5616 &self,
5617 text: SharedString,
5618 color: Hsla,
5619 window: &mut Window,
5620 ) -> anyhow::Result<ShapedLine> {
5621 let run = TextRun {
5622 len: text.len(),
5623 font: self.style.text.font(),
5624 color,
5625 background_color: None,
5626 underline: None,
5627 strikethrough: None,
5628 };
5629 window.text_system().shape_line(
5630 text,
5631 self.style.text.font_size.to_pixels(window.rem_size()),
5632 &[run],
5633 )
5634 }
5635}
5636
5637fn header_jump_data(
5638 snapshot: &EditorSnapshot,
5639 block_row_start: DisplayRow,
5640 height: u32,
5641 for_excerpt: &ExcerptInfo,
5642) -> JumpData {
5643 let range = &for_excerpt.range;
5644 let buffer = &for_excerpt.buffer;
5645 let jump_anchor = range
5646 .primary
5647 .as_ref()
5648 .map_or(range.context.start, |primary| primary.start);
5649
5650 let excerpt_start = range.context.start;
5651 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5652 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5653 0
5654 } else {
5655 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5656 jump_position.row.saturating_sub(excerpt_start_point.row)
5657 };
5658
5659 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5660 .saturating_sub(
5661 snapshot
5662 .scroll_anchor
5663 .scroll_position(&snapshot.display_snapshot)
5664 .y as u32,
5665 );
5666
5667 JumpData::MultiBufferPoint {
5668 excerpt_id: for_excerpt.id,
5669 anchor: jump_anchor,
5670 position: jump_position,
5671 line_offset_from_top,
5672 }
5673}
5674
5675fn inline_completion_accept_indicator(
5676 label: impl Into<SharedString>,
5677 icon: Option<IconName>,
5678 previewing: bool,
5679 editor_focus_handle: FocusHandle,
5680 window: &Window,
5681 cx: &App,
5682) -> Option<AnyElement> {
5683 let accept_binding = AcceptEditPredictionBinding::resolve(editor_focus_handle, window);
5684 let accept_keystroke = accept_binding.keystroke()?;
5685
5686 let accept_key = h_flex()
5687 .px_0p5()
5688 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5689 .text_size(TextSize::XSmall.rems(cx))
5690 .text_color(cx.theme().colors().text)
5691 .gap_1()
5692 .when(!previewing, |parent| {
5693 parent.children(ui::render_modifiers(
5694 &accept_keystroke.modifiers,
5695 PlatformStyle::platform(),
5696 Some(Color::Default),
5697 None,
5698 false,
5699 ))
5700 })
5701 .child(accept_keystroke.key.clone());
5702
5703 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5704 let accent_color = cx.theme().colors().text_accent;
5705 let editor_bg_color = cx.theme().colors().editor_background;
5706 let bg_color = editor_bg_color.blend(accent_color.opacity(0.2));
5707
5708 Some(
5709 h_flex()
5710 .py_0p5()
5711 .pl_1()
5712 .pr(padding_right)
5713 .gap_1()
5714 .bg(bg_color)
5715 .border_1()
5716 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5717 .rounded_md()
5718 .shadow_sm()
5719 .child(accept_key)
5720 .child(Label::new(label).size(LabelSize::Small))
5721 .when_some(icon, |element, icon| {
5722 element.child(
5723 div()
5724 .mt(px(1.5))
5725 .child(Icon::new(icon).size(IconSize::Small)),
5726 )
5727 })
5728 .into_any(),
5729 )
5730}
5731
5732pub struct AcceptEditPredictionBinding(Option<gpui::KeyBinding>);
5733
5734impl AcceptEditPredictionBinding {
5735 pub fn resolve(editor_focus_handle: FocusHandle, window: &Window) -> Self {
5736 AcceptEditPredictionBinding(
5737 window
5738 .bindings_for_action_in(&AcceptEditPrediction, &editor_focus_handle)
5739 .into_iter()
5740 .next(),
5741 )
5742 }
5743
5744 pub fn keystroke(&self) -> Option<&Keystroke> {
5745 if let Some(binding) = self.0.as_ref() {
5746 match &binding.keystrokes() {
5747 [keystroke] => Some(keystroke),
5748 _ => None,
5749 }
5750 } else {
5751 None
5752 }
5753 }
5754}
5755
5756struct AcceptEditPredictionsBindingValidator;
5757
5758inventory::submit! { KeyBindingValidatorRegistration(|| Box::new(AcceptEditPredictionsBindingValidator)) }
5759
5760impl KeyBindingValidator for AcceptEditPredictionsBindingValidator {
5761 fn action_type_id(&self) -> TypeId {
5762 TypeId::of::<AcceptEditPrediction>()
5763 }
5764
5765 fn validate(&self, binding: &gpui::KeyBinding) -> Result<(), MarkdownString> {
5766 use KeyBindingContextPredicate::*;
5767
5768 if binding.keystrokes().len() == 1 && binding.keystrokes()[0].modifiers.modified() {
5769 return Ok(());
5770 }
5771 let required_predicate =
5772 Not(Identifier(EDIT_PREDICTION_REQUIRES_MODIFIER_KEY_CONTEXT.into()).into());
5773 match binding.predicate() {
5774 Some(predicate) if required_predicate.is_superset(&predicate) => {
5775 return Ok(());
5776 }
5777 _ => {}
5778 }
5779 Err(MarkdownString(format!(
5780 "{} can only be bound to a single keystroke with modifiers, so \
5781 that holding down these modifiers can be used to preview \
5782 completions inline when the completions menu is open.\n\n\
5783 This restriction does not apply when the context requires {}, \
5784 since these bindings will not be used when the completions menu \
5785 is open.",
5786 MarkdownString::inline_code(AcceptEditPrediction.name()),
5787 MarkdownString::inline_code(&format!(
5788 "!{}",
5789 EDIT_PREDICTION_REQUIRES_MODIFIER_KEY_CONTEXT
5790 )),
5791 )))
5792 }
5793}
5794
5795#[allow(clippy::too_many_arguments)]
5796fn prepaint_gutter_button(
5797 button: IconButton,
5798 row: DisplayRow,
5799 line_height: Pixels,
5800 gutter_dimensions: &GutterDimensions,
5801 scroll_pixel_position: gpui::Point<Pixels>,
5802 gutter_hitbox: &Hitbox,
5803 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5804 window: &mut Window,
5805 cx: &mut App,
5806) -> AnyElement {
5807 let mut button = button.into_any_element();
5808 let available_space = size(
5809 AvailableSpace::MinContent,
5810 AvailableSpace::Definite(line_height),
5811 );
5812 let indicator_size = button.layout_as_root(available_space, window, cx);
5813
5814 let blame_width = gutter_dimensions.git_blame_entries_width;
5815 let gutter_width = rows_with_hunk_bounds
5816 .get(&row)
5817 .map(|bounds| bounds.size.width);
5818 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5819
5820 let mut x = left_offset;
5821 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5822 - indicator_size.width
5823 - left_offset;
5824 x += available_width / 2.;
5825
5826 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5827 y += (line_height - indicator_size.height) / 2.;
5828
5829 button.prepaint_as_root(
5830 gutter_hitbox.origin + point(x, y),
5831 available_space,
5832 window,
5833 cx,
5834 );
5835 button
5836}
5837
5838fn render_inline_blame_entry(
5839 blame: &gpui::Entity<GitBlame>,
5840 blame_entry: BlameEntry,
5841 style: &EditorStyle,
5842 workspace: Option<WeakEntity<Workspace>>,
5843 cx: &mut App,
5844) -> AnyElement {
5845 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5846
5847 let author = blame_entry.author.as_deref().unwrap_or_default();
5848 let summary_enabled = ProjectSettings::get_global(cx)
5849 .git
5850 .show_inline_commit_summary();
5851
5852 let text = match blame_entry.summary.as_ref() {
5853 Some(summary) if summary_enabled => {
5854 format!("{}, {} - {}", author, relative_timestamp, summary)
5855 }
5856 _ => format!("{}, {}", author, relative_timestamp),
5857 };
5858
5859 let details = blame.read(cx).details_for_entry(&blame_entry);
5860
5861 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5862
5863 h_flex()
5864 .id("inline-blame")
5865 .w_full()
5866 .font_family(style.text.font().family)
5867 .text_color(cx.theme().status().hint)
5868 .line_height(style.text.line_height)
5869 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5870 .child(text)
5871 .gap_2()
5872 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5873 .into_any()
5874}
5875
5876fn render_blame_entry(
5877 ix: usize,
5878 blame: &gpui::Entity<GitBlame>,
5879 blame_entry: BlameEntry,
5880 style: &EditorStyle,
5881 last_used_color: &mut Option<(PlayerColor, Oid)>,
5882 editor: Entity<Editor>,
5883 cx: &mut App,
5884) -> AnyElement {
5885 let mut sha_color = cx
5886 .theme()
5887 .players()
5888 .color_for_participant(blame_entry.sha.into());
5889 // If the last color we used is the same as the one we get for this line, but
5890 // the commit SHAs are different, then we try again to get a different color.
5891 match *last_used_color {
5892 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5893 let index: u32 = blame_entry.sha.into();
5894 sha_color = cx.theme().players().color_for_participant(index + 1);
5895 }
5896 _ => {}
5897 };
5898 last_used_color.replace((sha_color, blame_entry.sha));
5899
5900 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5901
5902 let short_commit_id = blame_entry.sha.display_short();
5903
5904 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5905 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5906
5907 let details = blame.read(cx).details_for_entry(&blame_entry);
5908
5909 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5910
5911 let tooltip =
5912 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
5913
5914 h_flex()
5915 .w_full()
5916 .justify_between()
5917 .font_family(style.text.font().family)
5918 .line_height(style.text.line_height)
5919 .id(("blame", ix))
5920 .text_color(cx.theme().status().hint)
5921 .pr_2()
5922 .gap_2()
5923 .child(
5924 h_flex()
5925 .items_center()
5926 .gap_2()
5927 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5928 .child(name),
5929 )
5930 .child(relative_timestamp)
5931 .on_mouse_down(MouseButton::Right, {
5932 let blame_entry = blame_entry.clone();
5933 let details = details.clone();
5934 move |event, window, cx| {
5935 deploy_blame_entry_context_menu(
5936 &blame_entry,
5937 details.as_ref(),
5938 editor.clone(),
5939 event.position,
5940 window,
5941 cx,
5942 );
5943 }
5944 })
5945 .hover(|style| style.bg(cx.theme().colors().element_hover))
5946 .when_some(
5947 details.and_then(|details| details.permalink),
5948 |this, url| {
5949 let url = url.clone();
5950 this.cursor_pointer().on_click(move |_, _, cx| {
5951 cx.stop_propagation();
5952 cx.open_url(url.as_str())
5953 })
5954 },
5955 )
5956 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5957 .into_any()
5958}
5959
5960fn deploy_blame_entry_context_menu(
5961 blame_entry: &BlameEntry,
5962 details: Option<&CommitDetails>,
5963 editor: Entity<Editor>,
5964 position: gpui::Point<Pixels>,
5965 window: &mut Window,
5966 cx: &mut App,
5967) {
5968 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5969 let sha = format!("{}", blame_entry.sha);
5970 menu.on_blur_subscription(Subscription::new(|| {}))
5971 .entry("Copy commit SHA", None, move |_, cx| {
5972 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5973 })
5974 .when_some(
5975 details.and_then(|details| details.permalink.clone()),
5976 |this, url| {
5977 this.entry("Open permalink", None, move |_, cx| {
5978 cx.open_url(url.as_str())
5979 })
5980 },
5981 )
5982 });
5983
5984 editor.update(cx, move |editor, cx| {
5985 editor.mouse_context_menu = Some(MouseContextMenu::new(
5986 MenuPosition::PinnedToScreen(position),
5987 context_menu,
5988 window,
5989 cx,
5990 ));
5991 cx.notify();
5992 });
5993}
5994
5995#[derive(Debug)]
5996pub(crate) struct LineWithInvisibles {
5997 fragments: SmallVec<[LineFragment; 1]>,
5998 invisibles: Vec<Invisible>,
5999 len: usize,
6000 width: Pixels,
6001 font_size: Pixels,
6002}
6003
6004#[allow(clippy::large_enum_variant)]
6005enum LineFragment {
6006 Text(ShapedLine),
6007 Element {
6008 element: Option<AnyElement>,
6009 size: Size<Pixels>,
6010 len: usize,
6011 },
6012}
6013
6014impl fmt::Debug for LineFragment {
6015 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6016 match self {
6017 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6018 LineFragment::Element { size, len, .. } => f
6019 .debug_struct("Element")
6020 .field("size", size)
6021 .field("len", len)
6022 .finish(),
6023 }
6024 }
6025}
6026
6027impl LineWithInvisibles {
6028 #[allow(clippy::too_many_arguments)]
6029 fn from_chunks<'a>(
6030 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6031 editor_style: &EditorStyle,
6032 max_line_len: usize,
6033 max_line_count: usize,
6034 editor_mode: EditorMode,
6035 text_width: Pixels,
6036 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6037 window: &mut Window,
6038 cx: &mut App,
6039 ) -> Vec<Self> {
6040 let text_style = &editor_style.text;
6041 let mut layouts = Vec::with_capacity(max_line_count);
6042 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6043 let mut line = String::new();
6044 let mut invisibles = Vec::new();
6045 let mut width = Pixels::ZERO;
6046 let mut len = 0;
6047 let mut styles = Vec::new();
6048 let mut non_whitespace_added = false;
6049 let mut row = 0;
6050 let mut line_exceeded_max_len = false;
6051 let font_size = text_style.font_size.to_pixels(window.rem_size());
6052
6053 let ellipsis = SharedString::from("⋯");
6054
6055 for highlighted_chunk in chunks.chain([HighlightedChunk {
6056 text: "\n",
6057 style: None,
6058 is_tab: false,
6059 replacement: None,
6060 }]) {
6061 if let Some(replacement) = highlighted_chunk.replacement {
6062 if !line.is_empty() {
6063 let shaped_line = window
6064 .text_system()
6065 .shape_line(line.clone().into(), font_size, &styles)
6066 .unwrap();
6067 width += shaped_line.width;
6068 len += shaped_line.len;
6069 fragments.push(LineFragment::Text(shaped_line));
6070 line.clear();
6071 styles.clear();
6072 }
6073
6074 match replacement {
6075 ChunkReplacement::Renderer(renderer) => {
6076 let available_width = if renderer.constrain_width {
6077 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6078 ellipsis.clone()
6079 } else {
6080 SharedString::from(Arc::from(highlighted_chunk.text))
6081 };
6082 let shaped_line = window
6083 .text_system()
6084 .shape_line(
6085 chunk,
6086 font_size,
6087 &[text_style.to_run(highlighted_chunk.text.len())],
6088 )
6089 .unwrap();
6090 AvailableSpace::Definite(shaped_line.width)
6091 } else {
6092 AvailableSpace::MinContent
6093 };
6094
6095 let mut element = (renderer.render)(&mut ChunkRendererContext {
6096 context: cx,
6097 window,
6098 max_width: text_width,
6099 });
6100 let line_height = text_style.line_height_in_pixels(window.rem_size());
6101 let size = element.layout_as_root(
6102 size(available_width, AvailableSpace::Definite(line_height)),
6103 window,
6104 cx,
6105 );
6106
6107 width += size.width;
6108 len += highlighted_chunk.text.len();
6109 fragments.push(LineFragment::Element {
6110 element: Some(element),
6111 size,
6112 len: highlighted_chunk.text.len(),
6113 });
6114 }
6115 ChunkReplacement::Str(x) => {
6116 let text_style = if let Some(style) = highlighted_chunk.style {
6117 Cow::Owned(text_style.clone().highlight(style))
6118 } else {
6119 Cow::Borrowed(text_style)
6120 };
6121
6122 let run = TextRun {
6123 len: x.len(),
6124 font: text_style.font(),
6125 color: text_style.color,
6126 background_color: text_style.background_color,
6127 underline: text_style.underline,
6128 strikethrough: text_style.strikethrough,
6129 };
6130 let line_layout = window
6131 .text_system()
6132 .shape_line(x, font_size, &[run])
6133 .unwrap()
6134 .with_len(highlighted_chunk.text.len());
6135
6136 width += line_layout.width;
6137 len += highlighted_chunk.text.len();
6138 fragments.push(LineFragment::Text(line_layout))
6139 }
6140 }
6141 } else {
6142 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6143 if ix > 0 {
6144 let shaped_line = window
6145 .text_system()
6146 .shape_line(line.clone().into(), font_size, &styles)
6147 .unwrap();
6148 width += shaped_line.width;
6149 len += shaped_line.len;
6150 fragments.push(LineFragment::Text(shaped_line));
6151 layouts.push(Self {
6152 width: mem::take(&mut width),
6153 len: mem::take(&mut len),
6154 fragments: mem::take(&mut fragments),
6155 invisibles: std::mem::take(&mut invisibles),
6156 font_size,
6157 });
6158
6159 line.clear();
6160 styles.clear();
6161 row += 1;
6162 line_exceeded_max_len = false;
6163 non_whitespace_added = false;
6164 if row == max_line_count {
6165 return layouts;
6166 }
6167 }
6168
6169 if !line_chunk.is_empty() && !line_exceeded_max_len {
6170 let text_style = if let Some(style) = highlighted_chunk.style {
6171 Cow::Owned(text_style.clone().highlight(style))
6172 } else {
6173 Cow::Borrowed(text_style)
6174 };
6175
6176 if line.len() + line_chunk.len() > max_line_len {
6177 let mut chunk_len = max_line_len - line.len();
6178 while !line_chunk.is_char_boundary(chunk_len) {
6179 chunk_len -= 1;
6180 }
6181 line_chunk = &line_chunk[..chunk_len];
6182 line_exceeded_max_len = true;
6183 }
6184
6185 styles.push(TextRun {
6186 len: line_chunk.len(),
6187 font: text_style.font(),
6188 color: text_style.color,
6189 background_color: text_style.background_color,
6190 underline: text_style.underline,
6191 strikethrough: text_style.strikethrough,
6192 });
6193
6194 if editor_mode == EditorMode::Full {
6195 // Line wrap pads its contents with fake whitespaces,
6196 // avoid printing them
6197 let is_soft_wrapped = is_row_soft_wrapped(row);
6198 if highlighted_chunk.is_tab {
6199 if non_whitespace_added || !is_soft_wrapped {
6200 invisibles.push(Invisible::Tab {
6201 line_start_offset: line.len(),
6202 line_end_offset: line.len() + line_chunk.len(),
6203 });
6204 }
6205 } else {
6206 invisibles.extend(line_chunk.char_indices().filter_map(
6207 |(index, c)| {
6208 let is_whitespace = c.is_whitespace();
6209 non_whitespace_added |= !is_whitespace;
6210 if is_whitespace
6211 && (non_whitespace_added || !is_soft_wrapped)
6212 {
6213 Some(Invisible::Whitespace {
6214 line_offset: line.len() + index,
6215 })
6216 } else {
6217 None
6218 }
6219 },
6220 ))
6221 }
6222 }
6223
6224 line.push_str(line_chunk);
6225 }
6226 }
6227 }
6228 }
6229
6230 layouts
6231 }
6232
6233 #[allow(clippy::too_many_arguments)]
6234 fn prepaint(
6235 &mut self,
6236 line_height: Pixels,
6237 scroll_pixel_position: gpui::Point<Pixels>,
6238 row: DisplayRow,
6239 content_origin: gpui::Point<Pixels>,
6240 line_elements: &mut SmallVec<[AnyElement; 1]>,
6241 window: &mut Window,
6242 cx: &mut App,
6243 ) {
6244 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6245 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6246 for fragment in &mut self.fragments {
6247 match fragment {
6248 LineFragment::Text(line) => {
6249 fragment_origin.x += line.width;
6250 }
6251 LineFragment::Element { element, size, .. } => {
6252 let mut element = element
6253 .take()
6254 .expect("you can't prepaint LineWithInvisibles twice");
6255
6256 // Center the element vertically within the line.
6257 let mut element_origin = fragment_origin;
6258 element_origin.y += (line_height - size.height) / 2.;
6259 element.prepaint_at(element_origin, window, cx);
6260 line_elements.push(element);
6261
6262 fragment_origin.x += size.width;
6263 }
6264 }
6265 }
6266 }
6267
6268 #[allow(clippy::too_many_arguments)]
6269 fn draw(
6270 &self,
6271 layout: &EditorLayout,
6272 row: DisplayRow,
6273 content_origin: gpui::Point<Pixels>,
6274 whitespace_setting: ShowWhitespaceSetting,
6275 selection_ranges: &[Range<DisplayPoint>],
6276 window: &mut Window,
6277 cx: &mut App,
6278 ) {
6279 let line_height = layout.position_map.line_height;
6280 let line_y = line_height
6281 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6282
6283 let mut fragment_origin =
6284 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6285
6286 for fragment in &self.fragments {
6287 match fragment {
6288 LineFragment::Text(line) => {
6289 line.paint(fragment_origin, line_height, window, cx)
6290 .log_err();
6291 fragment_origin.x += line.width;
6292 }
6293 LineFragment::Element { size, .. } => {
6294 fragment_origin.x += size.width;
6295 }
6296 }
6297 }
6298
6299 self.draw_invisibles(
6300 selection_ranges,
6301 layout,
6302 content_origin,
6303 line_y,
6304 row,
6305 line_height,
6306 whitespace_setting,
6307 window,
6308 cx,
6309 );
6310 }
6311
6312 #[allow(clippy::too_many_arguments)]
6313 fn draw_invisibles(
6314 &self,
6315 selection_ranges: &[Range<DisplayPoint>],
6316 layout: &EditorLayout,
6317 content_origin: gpui::Point<Pixels>,
6318 line_y: Pixels,
6319 row: DisplayRow,
6320 line_height: Pixels,
6321 whitespace_setting: ShowWhitespaceSetting,
6322 window: &mut Window,
6323 cx: &mut App,
6324 ) {
6325 let extract_whitespace_info = |invisible: &Invisible| {
6326 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6327 Invisible::Tab {
6328 line_start_offset,
6329 line_end_offset,
6330 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6331 Invisible::Whitespace { line_offset } => {
6332 (*line_offset, line_offset + 1, &layout.space_invisible)
6333 }
6334 };
6335
6336 let x_offset = self.x_for_index(token_offset);
6337 let invisible_offset =
6338 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6339 let origin = content_origin
6340 + gpui::point(
6341 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6342 line_y,
6343 );
6344
6345 (
6346 [token_offset, token_end_offset],
6347 Box::new(move |window: &mut Window, cx: &mut App| {
6348 invisible_symbol
6349 .paint(origin, line_height, window, cx)
6350 .log_err();
6351 }),
6352 )
6353 };
6354
6355 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6356 match whitespace_setting {
6357 ShowWhitespaceSetting::None => (),
6358 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6359 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6360 let invisible_point = DisplayPoint::new(row, start as u32);
6361 if !selection_ranges
6362 .iter()
6363 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6364 {
6365 return;
6366 }
6367
6368 paint(window, cx);
6369 }),
6370
6371 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6372 // - It is a tab
6373 // - It is adjacent to an edge (start or end)
6374 // - It is adjacent to a whitespace (left or right)
6375 ShowWhitespaceSetting::Boundary => {
6376 // 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
6377 // the above cases.
6378 // Note: We zip in the original `invisibles` to check for tab equality
6379 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6380 for (([start, end], paint), invisible) in
6381 invisible_iter.zip_eq(self.invisibles.iter())
6382 {
6383 let should_render = match (&last_seen, invisible) {
6384 (_, Invisible::Tab { .. }) => true,
6385 (Some((_, last_end, _)), _) => *last_end == start,
6386 _ => false,
6387 };
6388
6389 if should_render || start == 0 || end == self.len {
6390 paint(window, cx);
6391
6392 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6393 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6394 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6395 // Note that we need to make sure that the last one is actually adjacent
6396 if !should_render_last && last_end == start {
6397 paint_last(window, cx);
6398 }
6399 }
6400 }
6401
6402 // Manually render anything within a selection
6403 let invisible_point = DisplayPoint::new(row, start as u32);
6404 if selection_ranges.iter().any(|region| {
6405 region.start <= invisible_point && invisible_point < region.end
6406 }) {
6407 paint(window, cx);
6408 }
6409
6410 last_seen = Some((should_render, end, paint));
6411 }
6412 }
6413 }
6414 }
6415
6416 pub fn x_for_index(&self, index: usize) -> Pixels {
6417 let mut fragment_start_x = Pixels::ZERO;
6418 let mut fragment_start_index = 0;
6419
6420 for fragment in &self.fragments {
6421 match fragment {
6422 LineFragment::Text(shaped_line) => {
6423 let fragment_end_index = fragment_start_index + shaped_line.len;
6424 if index < fragment_end_index {
6425 return fragment_start_x
6426 + shaped_line.x_for_index(index - fragment_start_index);
6427 }
6428 fragment_start_x += shaped_line.width;
6429 fragment_start_index = fragment_end_index;
6430 }
6431 LineFragment::Element { len, size, .. } => {
6432 let fragment_end_index = fragment_start_index + len;
6433 if index < fragment_end_index {
6434 return fragment_start_x;
6435 }
6436 fragment_start_x += size.width;
6437 fragment_start_index = fragment_end_index;
6438 }
6439 }
6440 }
6441
6442 fragment_start_x
6443 }
6444
6445 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6446 let mut fragment_start_x = Pixels::ZERO;
6447 let mut fragment_start_index = 0;
6448
6449 for fragment in &self.fragments {
6450 match fragment {
6451 LineFragment::Text(shaped_line) => {
6452 let fragment_end_x = fragment_start_x + shaped_line.width;
6453 if x < fragment_end_x {
6454 return Some(
6455 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6456 );
6457 }
6458 fragment_start_x = fragment_end_x;
6459 fragment_start_index += shaped_line.len;
6460 }
6461 LineFragment::Element { len, size, .. } => {
6462 let fragment_end_x = fragment_start_x + size.width;
6463 if x < fragment_end_x {
6464 return Some(fragment_start_index);
6465 }
6466 fragment_start_index += len;
6467 fragment_start_x = fragment_end_x;
6468 }
6469 }
6470 }
6471
6472 None
6473 }
6474
6475 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6476 let mut fragment_start_index = 0;
6477
6478 for fragment in &self.fragments {
6479 match fragment {
6480 LineFragment::Text(shaped_line) => {
6481 let fragment_end_index = fragment_start_index + shaped_line.len;
6482 if index < fragment_end_index {
6483 return shaped_line.font_id_for_index(index - fragment_start_index);
6484 }
6485 fragment_start_index = fragment_end_index;
6486 }
6487 LineFragment::Element { len, .. } => {
6488 let fragment_end_index = fragment_start_index + len;
6489 if index < fragment_end_index {
6490 return None;
6491 }
6492 fragment_start_index = fragment_end_index;
6493 }
6494 }
6495 }
6496
6497 None
6498 }
6499}
6500
6501#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6502enum Invisible {
6503 /// A tab character
6504 ///
6505 /// A tab character is internally represented by spaces (configured by the user's tab width)
6506 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6507 /// adjacency checks.
6508 Tab {
6509 line_start_offset: usize,
6510 line_end_offset: usize,
6511 },
6512 Whitespace {
6513 line_offset: usize,
6514 },
6515}
6516
6517impl EditorElement {
6518 /// Returns the rem size to use when rendering the [`EditorElement`].
6519 ///
6520 /// This allows UI elements to scale based on the `buffer_font_size`.
6521 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6522 match self.editor.read(cx).mode {
6523 EditorMode::Full => {
6524 let buffer_font_size = self.style.text.font_size;
6525 match buffer_font_size {
6526 AbsoluteLength::Pixels(pixels) => {
6527 let rem_size_scale = {
6528 // Our default UI font size is 14px on a 16px base scale.
6529 // This means the default UI font size is 0.875rems.
6530 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6531
6532 // We then determine the delta between a single rem and the default font
6533 // size scale.
6534 let default_font_size_delta = 1. - default_font_size_scale;
6535
6536 // Finally, we add this delta to 1rem to get the scale factor that
6537 // should be used to scale up the UI.
6538 1. + default_font_size_delta
6539 };
6540
6541 Some(pixels * rem_size_scale)
6542 }
6543 AbsoluteLength::Rems(rems) => {
6544 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6545 }
6546 }
6547 }
6548 // We currently use single-line and auto-height editors in UI contexts,
6549 // so we don't want to scale everything with the buffer font size, as it
6550 // ends up looking off.
6551 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6552 }
6553 }
6554}
6555
6556impl Element for EditorElement {
6557 type RequestLayoutState = ();
6558 type PrepaintState = EditorLayout;
6559
6560 fn id(&self) -> Option<ElementId> {
6561 None
6562 }
6563
6564 fn request_layout(
6565 &mut self,
6566 _: Option<&GlobalElementId>,
6567 window: &mut Window,
6568 cx: &mut App,
6569 ) -> (gpui::LayoutId, ()) {
6570 let rem_size = self.rem_size(cx);
6571 window.with_rem_size(rem_size, |window| {
6572 self.editor.update(cx, |editor, cx| {
6573 editor.set_style(self.style.clone(), window, cx);
6574
6575 let layout_id = match editor.mode {
6576 EditorMode::SingleLine { auto_width } => {
6577 let rem_size = window.rem_size();
6578
6579 let height = self.style.text.line_height_in_pixels(rem_size);
6580 if auto_width {
6581 let editor_handle = cx.entity().clone();
6582 let style = self.style.clone();
6583 window.request_measured_layout(
6584 Style::default(),
6585 move |_, _, window, cx| {
6586 let editor_snapshot = editor_handle
6587 .update(cx, |editor, cx| editor.snapshot(window, cx));
6588 let line = Self::layout_lines(
6589 DisplayRow(0)..DisplayRow(1),
6590 &editor_snapshot,
6591 &style,
6592 px(f32::MAX),
6593 |_| false, // Single lines never soft wrap
6594 window,
6595 cx,
6596 )
6597 .pop()
6598 .unwrap();
6599
6600 let font_id =
6601 window.text_system().resolve_font(&style.text.font());
6602 let font_size =
6603 style.text.font_size.to_pixels(window.rem_size());
6604 let em_width =
6605 window.text_system().em_width(font_id, font_size).unwrap();
6606
6607 size(line.width + em_width, height)
6608 },
6609 )
6610 } else {
6611 let mut style = Style::default();
6612 style.size.height = height.into();
6613 style.size.width = relative(1.).into();
6614 window.request_layout(style, None, cx)
6615 }
6616 }
6617 EditorMode::AutoHeight { max_lines } => {
6618 let editor_handle = cx.entity().clone();
6619 let max_line_number_width =
6620 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6621 window.request_measured_layout(
6622 Style::default(),
6623 move |known_dimensions, available_space, window, cx| {
6624 editor_handle
6625 .update(cx, |editor, cx| {
6626 compute_auto_height_layout(
6627 editor,
6628 max_lines,
6629 max_line_number_width,
6630 known_dimensions,
6631 available_space.width,
6632 window,
6633 cx,
6634 )
6635 })
6636 .unwrap_or_default()
6637 },
6638 )
6639 }
6640 EditorMode::Full => {
6641 let mut style = Style::default();
6642 style.size.width = relative(1.).into();
6643 style.size.height = relative(1.).into();
6644 window.request_layout(style, None, cx)
6645 }
6646 };
6647
6648 (layout_id, ())
6649 })
6650 })
6651 }
6652
6653 fn prepaint(
6654 &mut self,
6655 _: Option<&GlobalElementId>,
6656 bounds: Bounds<Pixels>,
6657 _: &mut Self::RequestLayoutState,
6658 window: &mut Window,
6659 cx: &mut App,
6660 ) -> Self::PrepaintState {
6661 let text_style = TextStyleRefinement {
6662 font_size: Some(self.style.text.font_size),
6663 line_height: Some(self.style.text.line_height),
6664 ..Default::default()
6665 };
6666 let focus_handle = self.editor.focus_handle(cx);
6667 window.set_view_id(self.editor.entity_id());
6668 window.set_focus_handle(&focus_handle, cx);
6669
6670 let rem_size = self.rem_size(cx);
6671 window.with_rem_size(rem_size, |window| {
6672 window.with_text_style(Some(text_style), |window| {
6673 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6674 let mut snapshot = self
6675 .editor
6676 .update(cx, |editor, cx| editor.snapshot(window, cx));
6677 let style = self.style.clone();
6678
6679 let font_id = window.text_system().resolve_font(&style.text.font());
6680 let font_size = style.text.font_size.to_pixels(window.rem_size());
6681 let line_height = style.text.line_height_in_pixels(window.rem_size());
6682 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6683 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6684
6685 let letter_size = size(em_width, line_height);
6686
6687 let gutter_dimensions = snapshot
6688 .gutter_dimensions(
6689 font_id,
6690 font_size,
6691 self.max_line_number_width(&snapshot, window, cx),
6692 cx,
6693 )
6694 .unwrap_or_default();
6695 let text_width = bounds.size.width - gutter_dimensions.width;
6696
6697 let editor_width = text_width - gutter_dimensions.margin - em_width;
6698
6699 snapshot = self.editor.update(cx, |editor, cx| {
6700 editor.last_bounds = Some(bounds);
6701 editor.gutter_dimensions = gutter_dimensions;
6702 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6703
6704 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6705 snapshot
6706 } else {
6707 let wrap_width = match editor.soft_wrap_mode(cx) {
6708 SoftWrap::GitDiff => None,
6709 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6710 SoftWrap::EditorWidth => Some(editor_width),
6711 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6712 SoftWrap::Bounded(column) => {
6713 Some(editor_width.min(column as f32 * em_advance))
6714 }
6715 };
6716
6717 if editor.set_wrap_width(wrap_width, cx) {
6718 editor.snapshot(window, cx)
6719 } else {
6720 snapshot
6721 }
6722 }
6723 });
6724
6725 let wrap_guides = self
6726 .editor
6727 .read(cx)
6728 .wrap_guides(cx)
6729 .iter()
6730 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6731 .collect::<SmallVec<[_; 2]>>();
6732
6733 let hitbox = window.insert_hitbox(bounds, false);
6734 let gutter_hitbox =
6735 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6736 let text_hitbox = window.insert_hitbox(
6737 Bounds {
6738 origin: gutter_hitbox.top_right(),
6739 size: size(text_width, bounds.size.height),
6740 },
6741 false,
6742 );
6743 // Offset the content_bounds from the text_bounds by the gutter margin (which
6744 // is roughly half a character wide) to make hit testing work more like how we want.
6745 let content_origin =
6746 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6747
6748 let scrollbar_bounds =
6749 Bounds::from_corners(content_origin, bounds.bottom_right());
6750
6751 let height_in_lines = scrollbar_bounds.size.height / line_height;
6752
6753 // NOTE: The max row number in the current file, minus one
6754 let max_row = snapshot.max_point().row().as_f32();
6755
6756 // NOTE: The max scroll position for the top of the window
6757 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6758 (max_row - height_in_lines + 1.).max(0.)
6759 } else {
6760 let settings = EditorSettings::get_global(cx);
6761 match settings.scroll_beyond_last_line {
6762 ScrollBeyondLastLine::OnePage => max_row,
6763 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6764 ScrollBeyondLastLine::VerticalScrollMargin => {
6765 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6766 .max(0.)
6767 }
6768 }
6769 };
6770
6771 // TODO: Autoscrolling for both axes
6772 let mut autoscroll_request = None;
6773 let mut autoscroll_containing_element = false;
6774 let mut autoscroll_horizontally = false;
6775 self.editor.update(cx, |editor, cx| {
6776 autoscroll_request = editor.autoscroll_request();
6777 autoscroll_containing_element =
6778 autoscroll_request.is_some() || editor.has_pending_selection();
6779 // TODO: Is this horizontal or vertical?!
6780 autoscroll_horizontally = editor.autoscroll_vertically(
6781 bounds,
6782 line_height,
6783 max_scroll_top,
6784 window,
6785 cx,
6786 );
6787 snapshot = editor.snapshot(window, cx);
6788 });
6789
6790 let mut scroll_position = snapshot.scroll_position();
6791 // The scroll position is a fractional point, the whole number of which represents
6792 // the top of the window in terms of display rows.
6793 let start_row = DisplayRow(scroll_position.y as u32);
6794 let max_row = snapshot.max_point().row();
6795 let end_row = cmp::min(
6796 (scroll_position.y + height_in_lines).ceil() as u32,
6797 max_row.next_row().0,
6798 );
6799 let end_row = DisplayRow(end_row);
6800
6801 let row_infos = snapshot
6802 .row_infos(start_row)
6803 .take((start_row..end_row).len())
6804 .collect::<Vec<RowInfo>>();
6805 let is_row_soft_wrapped = |row: usize| {
6806 row_infos
6807 .get(row)
6808 .map_or(true, |info| info.buffer_row.is_none())
6809 };
6810
6811 let start_anchor = if start_row == Default::default() {
6812 Anchor::min()
6813 } else {
6814 snapshot.buffer_snapshot.anchor_before(
6815 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6816 )
6817 };
6818 let end_anchor = if end_row > max_row {
6819 Anchor::max()
6820 } else {
6821 snapshot.buffer_snapshot.anchor_before(
6822 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6823 )
6824 };
6825
6826 let mut highlighted_rows = self
6827 .editor
6828 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6829
6830 for (ix, row_info) in row_infos.iter().enumerate() {
6831 let color = match row_info.diff_status {
6832 Some(DiffHunkStatus::Added) => style.status.created_background,
6833 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6834 _ => continue,
6835 };
6836 highlighted_rows
6837 .entry(start_row + DisplayRow(ix as u32))
6838 .or_insert(color);
6839 }
6840
6841 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6842 start_anchor..end_anchor,
6843 &snapshot.display_snapshot,
6844 cx.theme().colors(),
6845 );
6846 let highlighted_gutter_ranges =
6847 self.editor.read(cx).gutter_highlights_in_range(
6848 start_anchor..end_anchor,
6849 &snapshot.display_snapshot,
6850 cx,
6851 );
6852
6853 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6854 start_anchor..end_anchor,
6855 &snapshot.display_snapshot,
6856 cx,
6857 );
6858
6859 let (local_selections, selected_buffer_ids): (
6860 Vec<Selection<Point>>,
6861 Vec<BufferId>,
6862 ) = self.editor.update(cx, |editor, cx| {
6863 let all_selections = editor.selections.all::<Point>(cx);
6864 let selected_buffer_ids = if editor.is_singleton(cx) {
6865 Vec::new()
6866 } else {
6867 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6868
6869 for selection in all_selections {
6870 for buffer_id in snapshot
6871 .buffer_snapshot
6872 .buffer_ids_for_range(selection.range())
6873 {
6874 if selected_buffer_ids.last() != Some(&buffer_id) {
6875 selected_buffer_ids.push(buffer_id);
6876 }
6877 }
6878 }
6879
6880 selected_buffer_ids
6881 };
6882
6883 let mut selections = editor
6884 .selections
6885 .disjoint_in_range(start_anchor..end_anchor, cx);
6886 selections.extend(editor.selections.pending(cx));
6887
6888 (selections, selected_buffer_ids)
6889 });
6890
6891 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6892 start_anchor,
6893 end_anchor,
6894 &local_selections,
6895 &snapshot,
6896 start_row,
6897 end_row,
6898 window,
6899 cx,
6900 );
6901
6902 let line_numbers = self.layout_line_numbers(
6903 Some(&gutter_hitbox),
6904 gutter_dimensions,
6905 line_height,
6906 scroll_position,
6907 start_row..end_row,
6908 &row_infos,
6909 newest_selection_head,
6910 &snapshot,
6911 window,
6912 cx,
6913 );
6914
6915 let mut crease_toggles =
6916 window.with_element_namespace("crease_toggles", |window| {
6917 self.layout_crease_toggles(
6918 start_row..end_row,
6919 &row_infos,
6920 &active_rows,
6921 &snapshot,
6922 window,
6923 cx,
6924 )
6925 });
6926 let crease_trailers =
6927 window.with_element_namespace("crease_trailers", |window| {
6928 self.layout_crease_trailers(
6929 row_infos.iter().copied(),
6930 &snapshot,
6931 window,
6932 cx,
6933 )
6934 });
6935
6936 let display_hunks = self.layout_gutter_diff_hunks(
6937 line_height,
6938 &gutter_hitbox,
6939 start_row..end_row,
6940 &snapshot,
6941 window,
6942 cx,
6943 );
6944
6945 let mut line_layouts = Self::layout_lines(
6946 start_row..end_row,
6947 &snapshot,
6948 &self.style,
6949 editor_width,
6950 is_row_soft_wrapped,
6951 window,
6952 cx,
6953 );
6954
6955 let longest_line_blame_width = self
6956 .editor
6957 .update(cx, |editor, cx| {
6958 if !editor.show_git_blame_inline {
6959 return None;
6960 }
6961 let blame = editor.blame.as_ref()?;
6962 let blame_entry = blame
6963 .update(cx, |blame, cx| {
6964 let row_infos =
6965 snapshot.row_infos(snapshot.longest_row()).next()?;
6966 blame.blame_for_rows(&[row_infos], cx).next()
6967 })
6968 .flatten()?;
6969 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
6970 let mut element = render_inline_blame_entry(
6971 blame,
6972 blame_entry,
6973 &style,
6974 workspace,
6975 cx,
6976 );
6977 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6978 Some(
6979 element
6980 .layout_as_root(AvailableSpace::min_size(), window, cx)
6981 .width
6982 + inline_blame_padding,
6983 )
6984 })
6985 .unwrap_or(Pixels::ZERO);
6986
6987 let longest_line_width = layout_line(
6988 snapshot.longest_row(),
6989 &snapshot,
6990 &style,
6991 editor_width,
6992 is_row_soft_wrapped,
6993 window,
6994 cx,
6995 )
6996 .width;
6997
6998 let scrollbar_range_data = ScrollbarRangeData::new(
6999 scrollbar_bounds,
7000 letter_size,
7001 &snapshot,
7002 longest_line_width,
7003 longest_line_blame_width,
7004 &style,
7005 cx,
7006 );
7007
7008 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7009 let mut scroll_width = scroll_range_bounds.size.width;
7010
7011 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7012 snapshot.sticky_header_excerpt(start_row)
7013 } else {
7014 None
7015 };
7016 let sticky_header_excerpt_id =
7017 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7018
7019 let blocks = window.with_element_namespace("blocks", |window| {
7020 self.render_blocks(
7021 start_row..end_row,
7022 &snapshot,
7023 &hitbox,
7024 &text_hitbox,
7025 editor_width,
7026 &mut scroll_width,
7027 &gutter_dimensions,
7028 em_width,
7029 gutter_dimensions.full_width(),
7030 line_height,
7031 &line_layouts,
7032 &local_selections,
7033 &selected_buffer_ids,
7034 is_row_soft_wrapped,
7035 sticky_header_excerpt_id,
7036 window,
7037 cx,
7038 )
7039 });
7040 let mut blocks = match blocks {
7041 Ok(blocks) => blocks,
7042 Err(resized_blocks) => {
7043 self.editor.update(cx, |editor, cx| {
7044 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7045 });
7046 return self.prepaint(None, bounds, &mut (), window, cx);
7047 }
7048 };
7049
7050 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7051 window.with_element_namespace("blocks", |window| {
7052 self.layout_sticky_buffer_header(
7053 sticky_header_excerpt,
7054 scroll_position.y,
7055 line_height,
7056 &snapshot,
7057 &hitbox,
7058 &selected_buffer_ids,
7059 window,
7060 cx,
7061 )
7062 })
7063 });
7064
7065 let start_buffer_row =
7066 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7067 let end_buffer_row =
7068 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7069
7070 let scroll_max = point(
7071 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7072 max_row.as_f32(),
7073 );
7074
7075 self.editor.update(cx, |editor, cx| {
7076 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7077
7078 let autoscrolled = if autoscroll_horizontally {
7079 editor.autoscroll_horizontally(
7080 start_row,
7081 editor_width - (letter_size.width / 2.0),
7082 scroll_width,
7083 em_width,
7084 &line_layouts,
7085 cx,
7086 )
7087 } else {
7088 false
7089 };
7090
7091 if clamped || autoscrolled {
7092 snapshot = editor.snapshot(window, cx);
7093 scroll_position = snapshot.scroll_position();
7094 }
7095 });
7096
7097 let scroll_pixel_position = point(
7098 scroll_position.x * em_width,
7099 scroll_position.y * line_height,
7100 );
7101
7102 let indent_guides = self.layout_indent_guides(
7103 content_origin,
7104 text_hitbox.origin,
7105 start_buffer_row..end_buffer_row,
7106 scroll_pixel_position,
7107 line_height,
7108 &snapshot,
7109 window,
7110 cx,
7111 );
7112
7113 let crease_trailers =
7114 window.with_element_namespace("crease_trailers", |window| {
7115 self.prepaint_crease_trailers(
7116 crease_trailers,
7117 &line_layouts,
7118 line_height,
7119 content_origin,
7120 scroll_pixel_position,
7121 em_width,
7122 window,
7123 cx,
7124 )
7125 });
7126
7127 let mut inline_blame = None;
7128 if let Some(newest_selection_head) = newest_selection_head {
7129 let display_row = newest_selection_head.row();
7130 if (start_row..end_row).contains(&display_row) {
7131 let line_ix = display_row.minus(start_row) as usize;
7132 let row_info = &row_infos[line_ix];
7133 let line_layout = &line_layouts[line_ix];
7134 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7135 inline_blame = self.layout_inline_blame(
7136 display_row,
7137 row_info,
7138 line_layout,
7139 crease_trailer_layout,
7140 em_width,
7141 content_origin,
7142 scroll_pixel_position,
7143 line_height,
7144 window,
7145 cx,
7146 );
7147 }
7148 }
7149
7150 let blamed_display_rows = self.layout_blame_entries(
7151 &row_infos,
7152 em_width,
7153 scroll_position,
7154 line_height,
7155 &gutter_hitbox,
7156 gutter_dimensions.git_blame_entries_width,
7157 window,
7158 cx,
7159 );
7160
7161 let scroll_max = point(
7162 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7163 max_scroll_top,
7164 );
7165
7166 self.editor.update(cx, |editor, cx| {
7167 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7168
7169 let autoscrolled = if autoscroll_horizontally {
7170 editor.autoscroll_horizontally(
7171 start_row,
7172 editor_width - (letter_size.width / 2.0),
7173 scroll_width,
7174 em_width,
7175 &line_layouts,
7176 cx,
7177 )
7178 } else {
7179 false
7180 };
7181
7182 if clamped || autoscrolled {
7183 snapshot = editor.snapshot(window, cx);
7184 scroll_position = snapshot.scroll_position();
7185 }
7186 });
7187
7188 let line_elements = self.prepaint_lines(
7189 start_row,
7190 &mut line_layouts,
7191 line_height,
7192 scroll_pixel_position,
7193 content_origin,
7194 window,
7195 cx,
7196 );
7197
7198 let mut block_start_rows = HashSet::default();
7199
7200 window.with_element_namespace("blocks", |window| {
7201 self.layout_blocks(
7202 &mut blocks,
7203 &mut block_start_rows,
7204 &hitbox,
7205 line_height,
7206 scroll_pixel_position,
7207 window,
7208 cx,
7209 );
7210 });
7211
7212 let cursors = self.collect_cursors(&snapshot, cx);
7213 let visible_row_range = start_row..end_row;
7214 let non_visible_cursors = cursors
7215 .iter()
7216 .any(move |c| !visible_row_range.contains(&c.0.row()));
7217
7218 let visible_cursors = self.layout_visible_cursors(
7219 &snapshot,
7220 &selections,
7221 &block_start_rows,
7222 start_row..end_row,
7223 &line_layouts,
7224 &text_hitbox,
7225 content_origin,
7226 scroll_position,
7227 scroll_pixel_position,
7228 line_height,
7229 em_width,
7230 em_advance,
7231 autoscroll_containing_element,
7232 window,
7233 cx,
7234 );
7235
7236 let scrollbars_layout = self.layout_scrollbars(
7237 &snapshot,
7238 scrollbar_range_data,
7239 scroll_position,
7240 non_visible_cursors,
7241 window,
7242 cx,
7243 );
7244
7245 let gutter_settings = EditorSettings::get_global(cx).gutter;
7246
7247 let rows_with_hunk_bounds = display_hunks
7248 .iter()
7249 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7250 .fold(
7251 HashMap::default(),
7252 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7253 match hunk {
7254 DisplayDiffHunk::Folded { display_row } => {
7255 rows_with_hunk_bounds.insert(*display_row, bounds);
7256 }
7257 DisplayDiffHunk::Unfolded {
7258 display_row_range, ..
7259 } => {
7260 for display_row in display_row_range.iter_rows() {
7261 rows_with_hunk_bounds.insert(display_row, bounds);
7262 }
7263 }
7264 }
7265 rows_with_hunk_bounds
7266 },
7267 );
7268 let mut code_actions_indicator = None;
7269 if let Some(newest_selection_head) = newest_selection_head {
7270 let newest_selection_point =
7271 newest_selection_head.to_point(&snapshot.display_snapshot);
7272
7273 if (start_row..end_row).contains(&newest_selection_head.row()) {
7274 self.layout_cursor_popovers(
7275 line_height,
7276 &text_hitbox,
7277 content_origin,
7278 start_row,
7279 scroll_pixel_position,
7280 &line_layouts,
7281 newest_selection_head,
7282 newest_selection_point,
7283 &style,
7284 window,
7285 cx,
7286 );
7287
7288 let show_code_actions = snapshot
7289 .show_code_actions
7290 .unwrap_or(gutter_settings.code_actions);
7291 if show_code_actions {
7292 let newest_selection_point =
7293 newest_selection_head.to_point(&snapshot.display_snapshot);
7294 if !snapshot
7295 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7296 {
7297 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7298 MultiBufferRow(newest_selection_point.row),
7299 );
7300 if let Some((buffer, range)) = buffer {
7301 let buffer_id = buffer.remote_id();
7302 let row = range.start.row;
7303 let has_test_indicator = self
7304 .editor
7305 .read(cx)
7306 .tasks
7307 .contains_key(&(buffer_id, row));
7308
7309 if !has_test_indicator {
7310 code_actions_indicator = self
7311 .layout_code_actions_indicator(
7312 line_height,
7313 newest_selection_head,
7314 scroll_pixel_position,
7315 &gutter_dimensions,
7316 &gutter_hitbox,
7317 &rows_with_hunk_bounds,
7318 window,
7319 cx,
7320 );
7321 }
7322 }
7323 }
7324 }
7325 }
7326 }
7327
7328 self.layout_gutter_menu(
7329 line_height,
7330 &text_hitbox,
7331 content_origin,
7332 scroll_pixel_position,
7333 gutter_dimensions.width - gutter_dimensions.left_padding,
7334 window,
7335 cx,
7336 );
7337
7338 let test_indicators = if gutter_settings.runnables {
7339 self.layout_run_indicators(
7340 line_height,
7341 start_row..end_row,
7342 scroll_pixel_position,
7343 &gutter_dimensions,
7344 &gutter_hitbox,
7345 &rows_with_hunk_bounds,
7346 &snapshot,
7347 window,
7348 cx,
7349 )
7350 } else {
7351 Vec::new()
7352 };
7353
7354 self.layout_signature_help(
7355 &hitbox,
7356 content_origin,
7357 scroll_pixel_position,
7358 newest_selection_head,
7359 start_row,
7360 &line_layouts,
7361 line_height,
7362 em_width,
7363 window,
7364 cx,
7365 );
7366
7367 if !cx.has_active_drag() {
7368 self.layout_hover_popovers(
7369 &snapshot,
7370 &hitbox,
7371 &text_hitbox,
7372 start_row..end_row,
7373 content_origin,
7374 scroll_pixel_position,
7375 &line_layouts,
7376 line_height,
7377 em_width,
7378 window,
7379 cx,
7380 );
7381 }
7382
7383 let inline_completion_popover = self.layout_inline_completion_popover(
7384 &text_hitbox.bounds,
7385 &snapshot,
7386 start_row..end_row,
7387 scroll_position.y,
7388 scroll_position.y + height_in_lines,
7389 &line_layouts,
7390 line_height,
7391 scroll_pixel_position,
7392 newest_selection_head,
7393 editor_width,
7394 &style,
7395 window,
7396 cx,
7397 );
7398
7399 let mouse_context_menu = self.layout_mouse_context_menu(
7400 &snapshot,
7401 start_row..end_row,
7402 content_origin,
7403 window,
7404 cx,
7405 );
7406
7407 window.with_element_namespace("crease_toggles", |window| {
7408 self.prepaint_crease_toggles(
7409 &mut crease_toggles,
7410 line_height,
7411 &gutter_dimensions,
7412 gutter_settings,
7413 scroll_pixel_position,
7414 &gutter_hitbox,
7415 window,
7416 cx,
7417 )
7418 });
7419
7420 let invisible_symbol_font_size = font_size / 2.;
7421 let tab_invisible = window
7422 .text_system()
7423 .shape_line(
7424 "→".into(),
7425 invisible_symbol_font_size,
7426 &[TextRun {
7427 len: "→".len(),
7428 font: self.style.text.font(),
7429 color: cx.theme().colors().editor_invisible,
7430 background_color: None,
7431 underline: None,
7432 strikethrough: None,
7433 }],
7434 )
7435 .unwrap();
7436 let space_invisible = window
7437 .text_system()
7438 .shape_line(
7439 "•".into(),
7440 invisible_symbol_font_size,
7441 &[TextRun {
7442 len: "•".len(),
7443 font: self.style.text.font(),
7444 color: cx.theme().colors().editor_invisible,
7445 background_color: None,
7446 underline: None,
7447 strikethrough: None,
7448 }],
7449 )
7450 .unwrap();
7451
7452 let mode = snapshot.mode;
7453
7454 let position_map = Rc::new(PositionMap {
7455 size: bounds.size,
7456 scroll_pixel_position,
7457 scroll_max,
7458 line_layouts,
7459 line_height,
7460 em_width,
7461 em_advance,
7462 snapshot,
7463 gutter_hitbox: gutter_hitbox.clone(),
7464 text_hitbox: text_hitbox.clone(),
7465 });
7466
7467 self.editor.update(cx, |editor, _| {
7468 editor.last_position_map = Some(position_map.clone())
7469 });
7470
7471 let hunk_controls = self.layout_diff_hunk_controls(
7472 start_row..end_row,
7473 &row_infos,
7474 &text_hitbox,
7475 &position_map,
7476 newest_selection_head,
7477 line_height,
7478 scroll_pixel_position,
7479 &display_hunks,
7480 self.editor.clone(),
7481 window,
7482 cx,
7483 );
7484
7485 EditorLayout {
7486 mode,
7487 position_map,
7488 visible_display_row_range: start_row..end_row,
7489 wrap_guides,
7490 indent_guides,
7491 hitbox,
7492 gutter_hitbox,
7493 display_hunks,
7494 content_origin,
7495 scrollbars_layout,
7496 active_rows,
7497 highlighted_rows,
7498 highlighted_ranges,
7499 highlighted_gutter_ranges,
7500 redacted_ranges,
7501 line_elements,
7502 line_numbers,
7503 blamed_display_rows,
7504 inline_blame,
7505 blocks,
7506 cursors,
7507 visible_cursors,
7508 selections,
7509 inline_completion_popover,
7510 diff_hunk_controls: hunk_controls,
7511 mouse_context_menu,
7512 test_indicators,
7513 code_actions_indicator,
7514 crease_toggles,
7515 crease_trailers,
7516 tab_invisible,
7517 space_invisible,
7518 sticky_buffer_header,
7519 }
7520 })
7521 })
7522 })
7523 }
7524
7525 fn paint(
7526 &mut self,
7527 _: Option<&GlobalElementId>,
7528 bounds: Bounds<gpui::Pixels>,
7529 _: &mut Self::RequestLayoutState,
7530 layout: &mut Self::PrepaintState,
7531 window: &mut Window,
7532 cx: &mut App,
7533 ) {
7534 let focus_handle = self.editor.focus_handle(cx);
7535 let key_context = self
7536 .editor
7537 .update(cx, |editor, cx| editor.key_context(window, cx));
7538
7539 window.set_key_context(key_context);
7540 window.handle_input(
7541 &focus_handle,
7542 ElementInputHandler::new(bounds, self.editor.clone()),
7543 cx,
7544 );
7545 self.register_actions(window, cx);
7546 self.register_key_listeners(window, cx, layout);
7547
7548 let text_style = TextStyleRefinement {
7549 font_size: Some(self.style.text.font_size),
7550 line_height: Some(self.style.text.line_height),
7551 ..Default::default()
7552 };
7553 let rem_size = self.rem_size(cx);
7554 window.with_rem_size(rem_size, |window| {
7555 window.with_text_style(Some(text_style), |window| {
7556 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7557 self.paint_mouse_listeners(layout, window, cx);
7558 self.paint_background(layout, window, cx);
7559 self.paint_indent_guides(layout, window, cx);
7560
7561 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7562 self.paint_blamed_display_rows(layout, window, cx);
7563 self.paint_line_numbers(layout, window, cx);
7564 }
7565
7566 self.paint_text(layout, window, cx);
7567
7568 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7569 self.paint_gutter_highlights(layout, window, cx);
7570 self.paint_gutter_indicators(layout, window, cx);
7571 }
7572
7573 if !layout.blocks.is_empty() {
7574 window.with_element_namespace("blocks", |window| {
7575 self.paint_blocks(layout, window, cx);
7576 });
7577 }
7578
7579 window.with_element_namespace("blocks", |window| {
7580 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7581 sticky_header.paint(window, cx)
7582 }
7583 });
7584
7585 self.paint_scrollbars(layout, window, cx);
7586 self.paint_inline_completion_popover(layout, window, cx);
7587 self.paint_mouse_context_menu(layout, window, cx);
7588 });
7589 })
7590 })
7591 }
7592}
7593
7594pub(super) fn gutter_bounds(
7595 editor_bounds: Bounds<Pixels>,
7596 gutter_dimensions: GutterDimensions,
7597) -> Bounds<Pixels> {
7598 Bounds {
7599 origin: editor_bounds.origin,
7600 size: size(gutter_dimensions.width, editor_bounds.size.height),
7601 }
7602}
7603
7604struct ScrollbarRangeData {
7605 scrollbar_bounds: Bounds<Pixels>,
7606 scroll_range: Bounds<Pixels>,
7607 letter_size: Size<Pixels>,
7608}
7609
7610impl ScrollbarRangeData {
7611 pub fn new(
7612 scrollbar_bounds: Bounds<Pixels>,
7613 letter_size: Size<Pixels>,
7614 snapshot: &EditorSnapshot,
7615 longest_line_width: Pixels,
7616 longest_line_blame_width: Pixels,
7617 style: &EditorStyle,
7618
7619 cx: &mut App,
7620 ) -> ScrollbarRangeData {
7621 // TODO: Simplify this function down, it requires a lot of parameters
7622 let max_row = snapshot.max_point().row();
7623 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7624
7625 let scrollbar_width = style.scrollbar_width;
7626
7627 let settings = EditorSettings::get_global(cx);
7628 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7629 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7630 ScrollBeyondLastLine::Off => px(1.),
7631 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7632 };
7633
7634 let overscroll = size(
7635 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7636 letter_size.height * scroll_beyond_last_line,
7637 );
7638
7639 let scroll_range = Bounds {
7640 origin: scrollbar_bounds.origin,
7641 size: text_bounds_size + overscroll,
7642 };
7643
7644 ScrollbarRangeData {
7645 scrollbar_bounds,
7646 scroll_range,
7647 letter_size,
7648 }
7649 }
7650}
7651
7652impl IntoElement for EditorElement {
7653 type Element = Self;
7654
7655 fn into_element(self) -> Self::Element {
7656 self
7657 }
7658}
7659
7660pub struct EditorLayout {
7661 position_map: Rc<PositionMap>,
7662 hitbox: Hitbox,
7663 gutter_hitbox: Hitbox,
7664 content_origin: gpui::Point<Pixels>,
7665 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7666 mode: EditorMode,
7667 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7668 indent_guides: Option<Vec<IndentGuideLayout>>,
7669 visible_display_row_range: Range<DisplayRow>,
7670 active_rows: BTreeMap<DisplayRow, bool>,
7671 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7672 line_elements: SmallVec<[AnyElement; 1]>,
7673 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7674 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7675 blamed_display_rows: Option<Vec<AnyElement>>,
7676 inline_blame: Option<AnyElement>,
7677 blocks: Vec<BlockLayout>,
7678 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7679 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7680 redacted_ranges: Vec<Range<DisplayPoint>>,
7681 cursors: Vec<(DisplayPoint, Hsla)>,
7682 visible_cursors: Vec<CursorLayout>,
7683 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7684 code_actions_indicator: Option<AnyElement>,
7685 test_indicators: Vec<AnyElement>,
7686 crease_toggles: Vec<Option<AnyElement>>,
7687 diff_hunk_controls: Vec<AnyElement>,
7688 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7689 inline_completion_popover: Option<AnyElement>,
7690 mouse_context_menu: Option<AnyElement>,
7691 tab_invisible: ShapedLine,
7692 space_invisible: ShapedLine,
7693 sticky_buffer_header: Option<AnyElement>,
7694}
7695
7696impl EditorLayout {
7697 fn line_end_overshoot(&self) -> Pixels {
7698 0.15 * self.position_map.line_height
7699 }
7700}
7701
7702struct LineNumberLayout {
7703 shaped_line: ShapedLine,
7704 hitbox: Option<Hitbox>,
7705 display_row: DisplayRow,
7706}
7707
7708struct ColoredRange<T> {
7709 start: T,
7710 end: T,
7711 color: Hsla,
7712}
7713
7714#[derive(Clone)]
7715struct ScrollbarLayout {
7716 hitbox: Hitbox,
7717 visible_range: Range<f32>,
7718 visible: bool,
7719 text_unit_size: Pixels,
7720 thumb_size: Pixels,
7721 axis: Axis,
7722}
7723
7724impl ScrollbarLayout {
7725 const BORDER_WIDTH: Pixels = px(1.0);
7726 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7727 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7728 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7729
7730 fn thumb_bounds(&self) -> Bounds<Pixels> {
7731 match self.axis {
7732 Axis::Vertical => {
7733 let thumb_top = self.y_for_row(self.visible_range.start);
7734 let thumb_bottom = thumb_top + self.thumb_size;
7735 Bounds::from_corners(
7736 point(self.hitbox.left(), thumb_top),
7737 point(self.hitbox.right(), thumb_bottom),
7738 )
7739 }
7740 Axis::Horizontal => {
7741 let thumb_left =
7742 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7743 let thumb_right = thumb_left + self.thumb_size;
7744 Bounds::from_corners(
7745 point(thumb_left, self.hitbox.top()),
7746 point(thumb_right, self.hitbox.bottom()),
7747 )
7748 }
7749 }
7750 }
7751
7752 fn y_for_row(&self, row: f32) -> Pixels {
7753 self.hitbox.top() + row * self.text_unit_size
7754 }
7755
7756 fn marker_quads_for_ranges(
7757 &self,
7758 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7759 column: Option<usize>,
7760 ) -> Vec<PaintQuad> {
7761 struct MinMax {
7762 min: Pixels,
7763 max: Pixels,
7764 }
7765 let (x_range, height_limit) = if let Some(column) = column {
7766 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7767 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7768 let end = start + column_width;
7769 (
7770 Range { start, end },
7771 MinMax {
7772 min: Self::MIN_MARKER_HEIGHT,
7773 max: px(f32::MAX),
7774 },
7775 )
7776 } else {
7777 (
7778 Range {
7779 start: Self::BORDER_WIDTH,
7780 end: self.hitbox.size.width,
7781 },
7782 MinMax {
7783 min: Self::LINE_MARKER_HEIGHT,
7784 max: Self::LINE_MARKER_HEIGHT,
7785 },
7786 )
7787 };
7788
7789 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7790 let mut pixel_ranges = row_ranges
7791 .into_iter()
7792 .map(|range| {
7793 let start_y = row_to_y(range.start);
7794 let end_y = row_to_y(range.end)
7795 + self
7796 .text_unit_size
7797 .max(height_limit.min)
7798 .min(height_limit.max);
7799 ColoredRange {
7800 start: start_y,
7801 end: end_y,
7802 color: range.color,
7803 }
7804 })
7805 .peekable();
7806
7807 let mut quads = Vec::new();
7808 while let Some(mut pixel_range) = pixel_ranges.next() {
7809 while let Some(next_pixel_range) = pixel_ranges.peek() {
7810 if pixel_range.end >= next_pixel_range.start - px(1.0)
7811 && pixel_range.color == next_pixel_range.color
7812 {
7813 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7814 pixel_ranges.next();
7815 } else {
7816 break;
7817 }
7818 }
7819
7820 let bounds = Bounds::from_corners(
7821 point(x_range.start, pixel_range.start),
7822 point(x_range.end, pixel_range.end),
7823 );
7824 quads.push(quad(
7825 bounds,
7826 Corners::default(),
7827 pixel_range.color,
7828 Edges::default(),
7829 Hsla::transparent_black(),
7830 ));
7831 }
7832
7833 quads
7834 }
7835}
7836
7837struct CreaseTrailerLayout {
7838 element: AnyElement,
7839 bounds: Bounds<Pixels>,
7840}
7841
7842pub(crate) struct PositionMap {
7843 pub size: Size<Pixels>,
7844 pub line_height: Pixels,
7845 pub scroll_pixel_position: gpui::Point<Pixels>,
7846 pub scroll_max: gpui::Point<f32>,
7847 pub em_width: Pixels,
7848 pub em_advance: Pixels,
7849 pub line_layouts: Vec<LineWithInvisibles>,
7850 pub snapshot: EditorSnapshot,
7851 pub text_hitbox: Hitbox,
7852 pub gutter_hitbox: Hitbox,
7853}
7854
7855#[derive(Debug, Copy, Clone)]
7856pub struct PointForPosition {
7857 pub previous_valid: DisplayPoint,
7858 pub next_valid: DisplayPoint,
7859 pub exact_unclipped: DisplayPoint,
7860 pub column_overshoot_after_line_end: u32,
7861}
7862
7863impl PointForPosition {
7864 pub fn as_valid(&self) -> Option<DisplayPoint> {
7865 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7866 Some(self.previous_valid)
7867 } else {
7868 None
7869 }
7870 }
7871}
7872
7873impl PositionMap {
7874 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7875 let text_bounds = self.text_hitbox.bounds;
7876 let scroll_position = self.snapshot.scroll_position();
7877 let position = position - text_bounds.origin;
7878 let y = position.y.max(px(0.)).min(self.size.height);
7879 let x = position.x + (scroll_position.x * self.em_width);
7880 let row = ((y / self.line_height) + scroll_position.y) as u32;
7881
7882 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7883 .line_layouts
7884 .get(row as usize - scroll_position.y as usize)
7885 {
7886 if let Some(ix) = line.index_for_x(x) {
7887 (ix as u32, px(0.))
7888 } else {
7889 (line.len as u32, px(0.).max(x - line.width))
7890 }
7891 } else {
7892 (0, x)
7893 };
7894
7895 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7896 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7897 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7898
7899 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7900 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7901 PointForPosition {
7902 previous_valid,
7903 next_valid,
7904 exact_unclipped,
7905 column_overshoot_after_line_end,
7906 }
7907 }
7908}
7909
7910struct BlockLayout {
7911 id: BlockId,
7912 row: Option<DisplayRow>,
7913 element: AnyElement,
7914 available_space: Size<AvailableSpace>,
7915 style: BlockStyle,
7916}
7917
7918fn layout_line(
7919 row: DisplayRow,
7920 snapshot: &EditorSnapshot,
7921 style: &EditorStyle,
7922 text_width: Pixels,
7923 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7924 window: &mut Window,
7925 cx: &mut App,
7926) -> LineWithInvisibles {
7927 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7928 LineWithInvisibles::from_chunks(
7929 chunks,
7930 &style,
7931 MAX_LINE_LEN,
7932 1,
7933 snapshot.mode,
7934 text_width,
7935 is_row_soft_wrapped,
7936 window,
7937 cx,
7938 )
7939 .pop()
7940 .unwrap()
7941}
7942
7943#[derive(Debug)]
7944pub struct IndentGuideLayout {
7945 origin: gpui::Point<Pixels>,
7946 length: Pixels,
7947 single_indent_width: Pixels,
7948 depth: u32,
7949 active: bool,
7950 settings: IndentGuideSettings,
7951}
7952
7953pub struct CursorLayout {
7954 origin: gpui::Point<Pixels>,
7955 block_width: Pixels,
7956 line_height: Pixels,
7957 color: Hsla,
7958 shape: CursorShape,
7959 block_text: Option<ShapedLine>,
7960 cursor_name: Option<AnyElement>,
7961}
7962
7963#[derive(Debug)]
7964pub struct CursorName {
7965 string: SharedString,
7966 color: Hsla,
7967 is_top_row: bool,
7968}
7969
7970impl CursorLayout {
7971 pub fn new(
7972 origin: gpui::Point<Pixels>,
7973 block_width: Pixels,
7974 line_height: Pixels,
7975 color: Hsla,
7976 shape: CursorShape,
7977 block_text: Option<ShapedLine>,
7978 ) -> CursorLayout {
7979 CursorLayout {
7980 origin,
7981 block_width,
7982 line_height,
7983 color,
7984 shape,
7985 block_text,
7986 cursor_name: None,
7987 }
7988 }
7989
7990 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7991 Bounds {
7992 origin: self.origin + origin,
7993 size: size(self.block_width, self.line_height),
7994 }
7995 }
7996
7997 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7998 match self.shape {
7999 CursorShape::Bar => Bounds {
8000 origin: self.origin + origin,
8001 size: size(px(2.0), self.line_height),
8002 },
8003 CursorShape::Block | CursorShape::Hollow => Bounds {
8004 origin: self.origin + origin,
8005 size: size(self.block_width, self.line_height),
8006 },
8007 CursorShape::Underline => Bounds {
8008 origin: self.origin
8009 + origin
8010 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8011 size: size(self.block_width, px(2.0)),
8012 },
8013 }
8014 }
8015
8016 pub fn layout(
8017 &mut self,
8018 origin: gpui::Point<Pixels>,
8019 cursor_name: Option<CursorName>,
8020 window: &mut Window,
8021 cx: &mut App,
8022 ) {
8023 if let Some(cursor_name) = cursor_name {
8024 let bounds = self.bounds(origin);
8025 let text_size = self.line_height / 1.5;
8026
8027 let name_origin = if cursor_name.is_top_row {
8028 point(bounds.right() - px(1.), bounds.top())
8029 } else {
8030 match self.shape {
8031 CursorShape::Bar => point(
8032 bounds.right() - px(2.),
8033 bounds.top() - text_size / 2. - px(1.),
8034 ),
8035 _ => point(
8036 bounds.right() - px(1.),
8037 bounds.top() - text_size / 2. - px(1.),
8038 ),
8039 }
8040 };
8041 let mut name_element = div()
8042 .bg(self.color)
8043 .text_size(text_size)
8044 .px_0p5()
8045 .line_height(text_size + px(2.))
8046 .text_color(cursor_name.color)
8047 .child(cursor_name.string.clone())
8048 .into_any_element();
8049
8050 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8051
8052 self.cursor_name = Some(name_element);
8053 }
8054 }
8055
8056 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8057 let bounds = self.bounds(origin);
8058
8059 //Draw background or border quad
8060 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8061 outline(bounds, self.color)
8062 } else {
8063 fill(bounds, self.color)
8064 };
8065
8066 if let Some(name) = &mut self.cursor_name {
8067 name.paint(window, cx);
8068 }
8069
8070 window.paint_quad(cursor);
8071
8072 if let Some(block_text) = &self.block_text {
8073 block_text
8074 .paint(self.origin + origin, self.line_height, window, cx)
8075 .log_err();
8076 }
8077 }
8078
8079 pub fn shape(&self) -> CursorShape {
8080 self.shape
8081 }
8082}
8083
8084#[derive(Debug)]
8085pub struct HighlightedRange {
8086 pub start_y: Pixels,
8087 pub line_height: Pixels,
8088 pub lines: Vec<HighlightedRangeLine>,
8089 pub color: Hsla,
8090 pub corner_radius: Pixels,
8091}
8092
8093#[derive(Debug)]
8094pub struct HighlightedRangeLine {
8095 pub start_x: Pixels,
8096 pub end_x: Pixels,
8097}
8098
8099impl HighlightedRange {
8100 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8101 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8102 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8103 self.paint_lines(
8104 self.start_y + self.line_height,
8105 &self.lines[1..],
8106 bounds,
8107 window,
8108 );
8109 } else {
8110 self.paint_lines(self.start_y, &self.lines, bounds, window);
8111 }
8112 }
8113
8114 fn paint_lines(
8115 &self,
8116 start_y: Pixels,
8117 lines: &[HighlightedRangeLine],
8118 _bounds: Bounds<Pixels>,
8119 window: &mut Window,
8120 ) {
8121 if lines.is_empty() {
8122 return;
8123 }
8124
8125 let first_line = lines.first().unwrap();
8126 let last_line = lines.last().unwrap();
8127
8128 let first_top_left = point(first_line.start_x, start_y);
8129 let first_top_right = point(first_line.end_x, start_y);
8130
8131 let curve_height = point(Pixels::ZERO, self.corner_radius);
8132 let curve_width = |start_x: Pixels, end_x: Pixels| {
8133 let max = (end_x - start_x) / 2.;
8134 let width = if max < self.corner_radius {
8135 max
8136 } else {
8137 self.corner_radius
8138 };
8139
8140 point(width, Pixels::ZERO)
8141 };
8142
8143 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8144 let mut builder = gpui::PathBuilder::fill();
8145 builder.move_to(first_top_right - top_curve_width);
8146 builder.curve_to(first_top_right + curve_height, first_top_right);
8147
8148 let mut iter = lines.iter().enumerate().peekable();
8149 while let Some((ix, line)) = iter.next() {
8150 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8151
8152 if let Some((_, next_line)) = iter.peek() {
8153 let next_top_right = point(next_line.end_x, bottom_right.y);
8154
8155 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8156 Ordering::Equal => {
8157 builder.line_to(bottom_right);
8158 }
8159 Ordering::Less => {
8160 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8161 builder.line_to(bottom_right - curve_height);
8162 if self.corner_radius > Pixels::ZERO {
8163 builder.curve_to(bottom_right - curve_width, bottom_right);
8164 }
8165 builder.line_to(next_top_right + curve_width);
8166 if self.corner_radius > Pixels::ZERO {
8167 builder.curve_to(next_top_right + curve_height, next_top_right);
8168 }
8169 }
8170 Ordering::Greater => {
8171 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8172 builder.line_to(bottom_right - curve_height);
8173 if self.corner_radius > Pixels::ZERO {
8174 builder.curve_to(bottom_right + curve_width, bottom_right);
8175 }
8176 builder.line_to(next_top_right - curve_width);
8177 if self.corner_radius > Pixels::ZERO {
8178 builder.curve_to(next_top_right + curve_height, next_top_right);
8179 }
8180 }
8181 }
8182 } else {
8183 let curve_width = curve_width(line.start_x, line.end_x);
8184 builder.line_to(bottom_right - curve_height);
8185 if self.corner_radius > Pixels::ZERO {
8186 builder.curve_to(bottom_right - curve_width, bottom_right);
8187 }
8188
8189 let bottom_left = point(line.start_x, bottom_right.y);
8190 builder.line_to(bottom_left + curve_width);
8191 if self.corner_radius > Pixels::ZERO {
8192 builder.curve_to(bottom_left - curve_height, bottom_left);
8193 }
8194 }
8195 }
8196
8197 if first_line.start_x > last_line.start_x {
8198 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8199 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8200 builder.line_to(second_top_left + curve_height);
8201 if self.corner_radius > Pixels::ZERO {
8202 builder.curve_to(second_top_left + curve_width, second_top_left);
8203 }
8204 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8205 builder.line_to(first_bottom_left - curve_width);
8206 if self.corner_radius > Pixels::ZERO {
8207 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8208 }
8209 }
8210
8211 builder.line_to(first_top_left + curve_height);
8212 if self.corner_radius > Pixels::ZERO {
8213 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8214 }
8215 builder.line_to(first_top_right - top_curve_width);
8216
8217 if let Ok(path) = builder.build() {
8218 window.paint_path(path, self.color);
8219 }
8220 }
8221}
8222
8223enum CursorPopoverType {
8224 CodeContextMenu,
8225 EditPrediction,
8226}
8227
8228pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8229 (delta.pow(1.5) / 100.0).into()
8230}
8231
8232fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8233 (delta.pow(1.2) / 300.0).into()
8234}
8235
8236pub fn register_action<T: Action>(
8237 editor: &Entity<Editor>,
8238 window: &mut Window,
8239 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8240) {
8241 let editor = editor.clone();
8242 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8243 let action = action.downcast_ref().unwrap();
8244 if phase == DispatchPhase::Bubble {
8245 editor.update(cx, |editor, cx| {
8246 listener(editor, action, window, cx);
8247 })
8248 }
8249 })
8250}
8251
8252fn compute_auto_height_layout(
8253 editor: &mut Editor,
8254 max_lines: usize,
8255 max_line_number_width: Pixels,
8256 known_dimensions: Size<Option<Pixels>>,
8257 available_width: AvailableSpace,
8258 window: &mut Window,
8259 cx: &mut Context<Editor>,
8260) -> Option<Size<Pixels>> {
8261 let width = known_dimensions.width.or({
8262 if let AvailableSpace::Definite(available_width) = available_width {
8263 Some(available_width)
8264 } else {
8265 None
8266 }
8267 })?;
8268 if let Some(height) = known_dimensions.height {
8269 return Some(size(width, height));
8270 }
8271
8272 let style = editor.style.as_ref().unwrap();
8273 let font_id = window.text_system().resolve_font(&style.text.font());
8274 let font_size = style.text.font_size.to_pixels(window.rem_size());
8275 let line_height = style.text.line_height_in_pixels(window.rem_size());
8276 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8277
8278 let mut snapshot = editor.snapshot(window, cx);
8279 let gutter_dimensions = snapshot
8280 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8281 .unwrap_or_default();
8282
8283 editor.gutter_dimensions = gutter_dimensions;
8284 let text_width = width - gutter_dimensions.width;
8285 let overscroll = size(em_width, px(0.));
8286
8287 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8288 if editor.set_wrap_width(Some(editor_width), cx) {
8289 snapshot = editor.snapshot(window, cx);
8290 }
8291
8292 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8293 let height = scroll_height
8294 .max(line_height)
8295 .min(line_height * max_lines as f32);
8296
8297 Some(size(width, height))
8298}
8299
8300#[cfg(test)]
8301mod tests {
8302 use super::*;
8303 use crate::{
8304 display_map::{BlockPlacement, BlockProperties},
8305 editor_tests::{init_test, update_test_language_settings},
8306 Editor, MultiBuffer,
8307 };
8308 use gpui::{TestAppContext, VisualTestContext};
8309 use language::language_settings;
8310 use log::info;
8311 use similar::DiffableStr;
8312 use std::num::NonZeroU32;
8313 use util::test::sample_text;
8314
8315 #[gpui::test]
8316 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8317 init_test(cx, |_| {});
8318 let window = cx.add_window(|window, cx| {
8319 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8320 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8321 });
8322
8323 let editor = window.root(cx).unwrap();
8324 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8325 let line_height = window
8326 .update(cx, |_, window, _| {
8327 style.text.line_height_in_pixels(window.rem_size())
8328 })
8329 .unwrap();
8330 let element = EditorElement::new(&editor, style);
8331 let snapshot = window
8332 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8333 .unwrap();
8334
8335 let layouts = cx
8336 .update_window(*window, |_, window, cx| {
8337 element.layout_line_numbers(
8338 None,
8339 GutterDimensions {
8340 left_padding: Pixels::ZERO,
8341 right_padding: Pixels::ZERO,
8342 width: px(30.0),
8343 margin: Pixels::ZERO,
8344 git_blame_entries_width: None,
8345 },
8346 line_height,
8347 gpui::Point::default(),
8348 DisplayRow(0)..DisplayRow(6),
8349 &(0..6)
8350 .map(|row| RowInfo {
8351 buffer_row: Some(row),
8352 ..Default::default()
8353 })
8354 .collect::<Vec<_>>(),
8355 Some(DisplayPoint::new(DisplayRow(0), 0)),
8356 &snapshot,
8357 window,
8358 cx,
8359 )
8360 })
8361 .unwrap();
8362 assert_eq!(layouts.len(), 6);
8363
8364 let relative_rows = window
8365 .update(cx, |editor, window, cx| {
8366 let snapshot = editor.snapshot(window, cx);
8367 element.calculate_relative_line_numbers(
8368 &snapshot,
8369 &(DisplayRow(0)..DisplayRow(6)),
8370 Some(DisplayRow(3)),
8371 )
8372 })
8373 .unwrap();
8374 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8375 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8376 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8377 // current line has no relative number
8378 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8379 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8380
8381 // works if cursor is before screen
8382 let relative_rows = window
8383 .update(cx, |editor, window, cx| {
8384 let snapshot = editor.snapshot(window, cx);
8385 element.calculate_relative_line_numbers(
8386 &snapshot,
8387 &(DisplayRow(3)..DisplayRow(6)),
8388 Some(DisplayRow(1)),
8389 )
8390 })
8391 .unwrap();
8392 assert_eq!(relative_rows.len(), 3);
8393 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8394 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8395 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8396
8397 // works if cursor is after screen
8398 let relative_rows = window
8399 .update(cx, |editor, window, cx| {
8400 let snapshot = editor.snapshot(window, cx);
8401 element.calculate_relative_line_numbers(
8402 &snapshot,
8403 &(DisplayRow(0)..DisplayRow(3)),
8404 Some(DisplayRow(6)),
8405 )
8406 })
8407 .unwrap();
8408 assert_eq!(relative_rows.len(), 3);
8409 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8410 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8411 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8412 }
8413
8414 #[gpui::test]
8415 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8416 init_test(cx, |_| {});
8417
8418 let window = cx.add_window(|window, cx| {
8419 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8420 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8421 });
8422 let cx = &mut VisualTestContext::from_window(*window, cx);
8423 let editor = window.root(cx).unwrap();
8424 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8425
8426 window
8427 .update(cx, |editor, window, cx| {
8428 editor.cursor_shape = CursorShape::Block;
8429 editor.change_selections(None, window, cx, |s| {
8430 s.select_ranges([
8431 Point::new(0, 0)..Point::new(1, 0),
8432 Point::new(3, 2)..Point::new(3, 3),
8433 Point::new(5, 6)..Point::new(6, 0),
8434 ]);
8435 });
8436 })
8437 .unwrap();
8438
8439 let (_, state) = cx.draw(
8440 point(px(500.), px(500.)),
8441 size(px(500.), px(500.)),
8442 |_, _| EditorElement::new(&editor, style),
8443 );
8444
8445 assert_eq!(state.selections.len(), 1);
8446 let local_selections = &state.selections[0].1;
8447 assert_eq!(local_selections.len(), 3);
8448 // moves cursor back one line
8449 assert_eq!(
8450 local_selections[0].head,
8451 DisplayPoint::new(DisplayRow(0), 6)
8452 );
8453 assert_eq!(
8454 local_selections[0].range,
8455 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8456 );
8457
8458 // moves cursor back one column
8459 assert_eq!(
8460 local_selections[1].range,
8461 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8462 );
8463 assert_eq!(
8464 local_selections[1].head,
8465 DisplayPoint::new(DisplayRow(3), 2)
8466 );
8467
8468 // leaves cursor on the max point
8469 assert_eq!(
8470 local_selections[2].range,
8471 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8472 );
8473 assert_eq!(
8474 local_selections[2].head,
8475 DisplayPoint::new(DisplayRow(6), 0)
8476 );
8477
8478 // active lines does not include 1 (even though the range of the selection does)
8479 assert_eq!(
8480 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8481 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8482 );
8483
8484 // multi-buffer support
8485 // in DisplayPoint coordinates, this is what we're dealing with:
8486 // 0: [[file
8487 // 1: header
8488 // 2: section]]
8489 // 3: aaaaaa
8490 // 4: bbbbbb
8491 // 5: cccccc
8492 // 6:
8493 // 7: [[footer]]
8494 // 8: [[header]]
8495 // 9: ffffff
8496 // 10: gggggg
8497 // 11: hhhhhh
8498 // 12:
8499 // 13: [[footer]]
8500 // 14: [[file
8501 // 15: header
8502 // 16: section]]
8503 // 17: bbbbbb
8504 // 18: cccccc
8505 // 19: dddddd
8506 // 20: [[footer]]
8507 let window = cx.add_window(|window, cx| {
8508 let buffer = MultiBuffer::build_multi(
8509 [
8510 (
8511 &(sample_text(8, 6, 'a') + "\n"),
8512 vec![
8513 Point::new(0, 0)..Point::new(3, 0),
8514 Point::new(4, 0)..Point::new(7, 0),
8515 ],
8516 ),
8517 (
8518 &(sample_text(8, 6, 'a') + "\n"),
8519 vec![Point::new(1, 0)..Point::new(3, 0)],
8520 ),
8521 ],
8522 cx,
8523 );
8524 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8525 });
8526 let editor = window.root(cx).unwrap();
8527 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8528 let _state = window.update(cx, |editor, window, cx| {
8529 editor.cursor_shape = CursorShape::Block;
8530 editor.change_selections(None, window, cx, |s| {
8531 s.select_display_ranges([
8532 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8533 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8534 ]);
8535 });
8536 });
8537
8538 let (_, state) = cx.draw(
8539 point(px(500.), px(500.)),
8540 size(px(500.), px(500.)),
8541 |_, _| EditorElement::new(&editor, style),
8542 );
8543 assert_eq!(state.selections.len(), 1);
8544 let local_selections = &state.selections[0].1;
8545 assert_eq!(local_selections.len(), 2);
8546
8547 // moves cursor on excerpt boundary back a line
8548 // and doesn't allow selection to bleed through
8549 assert_eq!(
8550 local_selections[0].range,
8551 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8552 );
8553 assert_eq!(
8554 local_selections[0].head,
8555 DisplayPoint::new(DisplayRow(6), 0)
8556 );
8557 // moves cursor on buffer boundary back two lines
8558 // and doesn't allow selection to bleed through
8559 assert_eq!(
8560 local_selections[1].range,
8561 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8562 );
8563 assert_eq!(
8564 local_selections[1].head,
8565 DisplayPoint::new(DisplayRow(12), 0)
8566 );
8567 }
8568
8569 #[gpui::test]
8570 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8571 init_test(cx, |_| {});
8572
8573 let window = cx.add_window(|window, cx| {
8574 let buffer = MultiBuffer::build_simple("", cx);
8575 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8576 });
8577 let cx = &mut VisualTestContext::from_window(*window, cx);
8578 let editor = window.root(cx).unwrap();
8579 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8580 window
8581 .update(cx, |editor, window, cx| {
8582 editor.set_placeholder_text("hello", cx);
8583 editor.insert_blocks(
8584 [BlockProperties {
8585 style: BlockStyle::Fixed,
8586 placement: BlockPlacement::Above(Anchor::min()),
8587 height: 3,
8588 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8589 priority: 0,
8590 }],
8591 None,
8592 cx,
8593 );
8594
8595 // Blur the editor so that it displays placeholder text.
8596 window.blur();
8597 })
8598 .unwrap();
8599
8600 let (_, state) = cx.draw(
8601 point(px(500.), px(500.)),
8602 size(px(500.), px(500.)),
8603 |_, _| EditorElement::new(&editor, style),
8604 );
8605 assert_eq!(state.position_map.line_layouts.len(), 4);
8606 assert_eq!(state.line_numbers.len(), 1);
8607 assert_eq!(
8608 state
8609 .line_numbers
8610 .get(&MultiBufferRow(0))
8611 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8612 Some("1")
8613 );
8614 }
8615
8616 #[gpui::test]
8617 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8618 const TAB_SIZE: u32 = 4;
8619
8620 let input_text = "\t \t|\t| a b";
8621 let expected_invisibles = vec![
8622 Invisible::Tab {
8623 line_start_offset: 0,
8624 line_end_offset: TAB_SIZE as usize,
8625 },
8626 Invisible::Whitespace {
8627 line_offset: TAB_SIZE as usize,
8628 },
8629 Invisible::Tab {
8630 line_start_offset: TAB_SIZE as usize + 1,
8631 line_end_offset: TAB_SIZE as usize * 2,
8632 },
8633 Invisible::Tab {
8634 line_start_offset: TAB_SIZE as usize * 2 + 1,
8635 line_end_offset: TAB_SIZE as usize * 3,
8636 },
8637 Invisible::Whitespace {
8638 line_offset: TAB_SIZE as usize * 3 + 1,
8639 },
8640 Invisible::Whitespace {
8641 line_offset: TAB_SIZE as usize * 3 + 3,
8642 },
8643 ];
8644 assert_eq!(
8645 expected_invisibles.len(),
8646 input_text
8647 .chars()
8648 .filter(|initial_char| initial_char.is_whitespace())
8649 .count(),
8650 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8651 );
8652
8653 for show_line_numbers in [true, false] {
8654 init_test(cx, |s| {
8655 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8656 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8657 });
8658
8659 let actual_invisibles = collect_invisibles_from_new_editor(
8660 cx,
8661 EditorMode::Full,
8662 input_text,
8663 px(500.0),
8664 show_line_numbers,
8665 );
8666
8667 assert_eq!(expected_invisibles, actual_invisibles);
8668 }
8669 }
8670
8671 #[gpui::test]
8672 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8673 init_test(cx, |s| {
8674 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8675 s.defaults.tab_size = NonZeroU32::new(4);
8676 });
8677
8678 for editor_mode_without_invisibles in [
8679 EditorMode::SingleLine { auto_width: false },
8680 EditorMode::AutoHeight { max_lines: 100 },
8681 ] {
8682 for show_line_numbers in [true, false] {
8683 let invisibles = collect_invisibles_from_new_editor(
8684 cx,
8685 editor_mode_without_invisibles,
8686 "\t\t\t| | a b",
8687 px(500.0),
8688 show_line_numbers,
8689 );
8690 assert!(invisibles.is_empty(),
8691 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8692 }
8693 }
8694 }
8695
8696 #[gpui::test]
8697 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8698 let tab_size = 4;
8699 let input_text = "a\tbcd ".repeat(9);
8700 let repeated_invisibles = [
8701 Invisible::Tab {
8702 line_start_offset: 1,
8703 line_end_offset: tab_size as usize,
8704 },
8705 Invisible::Whitespace {
8706 line_offset: tab_size as usize + 3,
8707 },
8708 Invisible::Whitespace {
8709 line_offset: tab_size as usize + 4,
8710 },
8711 Invisible::Whitespace {
8712 line_offset: tab_size as usize + 5,
8713 },
8714 Invisible::Whitespace {
8715 line_offset: tab_size as usize + 6,
8716 },
8717 Invisible::Whitespace {
8718 line_offset: tab_size as usize + 7,
8719 },
8720 ];
8721 let expected_invisibles = std::iter::once(repeated_invisibles)
8722 .cycle()
8723 .take(9)
8724 .flatten()
8725 .collect::<Vec<_>>();
8726 assert_eq!(
8727 expected_invisibles.len(),
8728 input_text
8729 .chars()
8730 .filter(|initial_char| initial_char.is_whitespace())
8731 .count(),
8732 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8733 );
8734 info!("Expected invisibles: {expected_invisibles:?}");
8735
8736 init_test(cx, |_| {});
8737
8738 // Put the same string with repeating whitespace pattern into editors of various size,
8739 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8740 let resize_step = 10.0;
8741 let mut editor_width = 200.0;
8742 while editor_width <= 1000.0 {
8743 for show_line_numbers in [true, false] {
8744 update_test_language_settings(cx, |s| {
8745 s.defaults.tab_size = NonZeroU32::new(tab_size);
8746 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8747 s.defaults.preferred_line_length = Some(editor_width as u32);
8748 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8749 });
8750
8751 let actual_invisibles = collect_invisibles_from_new_editor(
8752 cx,
8753 EditorMode::Full,
8754 &input_text,
8755 px(editor_width),
8756 show_line_numbers,
8757 );
8758
8759 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8760 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8761 let mut i = 0;
8762 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8763 i = actual_index;
8764 match expected_invisibles.get(i) {
8765 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8766 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8767 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8768 _ => {
8769 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8770 }
8771 },
8772 None => {
8773 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8774 }
8775 }
8776 }
8777 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8778 assert!(
8779 missing_expected_invisibles.is_empty(),
8780 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8781 );
8782
8783 editor_width += resize_step;
8784 }
8785 }
8786 }
8787
8788 fn collect_invisibles_from_new_editor(
8789 cx: &mut TestAppContext,
8790 editor_mode: EditorMode,
8791 input_text: &str,
8792 editor_width: Pixels,
8793 show_line_numbers: bool,
8794 ) -> Vec<Invisible> {
8795 info!(
8796 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8797 editor_width.0
8798 );
8799 let window = cx.add_window(|window, cx| {
8800 let buffer = MultiBuffer::build_simple(input_text, cx);
8801 Editor::new(editor_mode, buffer, None, true, window, cx)
8802 });
8803 let cx = &mut VisualTestContext::from_window(*window, cx);
8804 let editor = window.root(cx).unwrap();
8805
8806 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8807 window
8808 .update(cx, |editor, _, cx| {
8809 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8810 editor.set_wrap_width(Some(editor_width), cx);
8811 editor.set_show_line_numbers(show_line_numbers, cx);
8812 })
8813 .unwrap();
8814 let (_, state) = cx.draw(
8815 point(px(500.), px(500.)),
8816 size(px(500.), px(500.)),
8817 |_, _| EditorElement::new(&editor, style),
8818 );
8819 state
8820 .position_map
8821 .line_layouts
8822 .iter()
8823 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8824 .cloned()
8825 .collect()
8826 }
8827}
8828
8829fn diff_hunk_controls(
8830 row: u32,
8831 hunk_range: Range<Anchor>,
8832 line_height: Pixels,
8833 editor: &Entity<Editor>,
8834 cx: &mut App,
8835) -> AnyElement {
8836 h_flex()
8837 .h(line_height)
8838 .mr_1()
8839 .gap_1()
8840 .px_1()
8841 .pb_1()
8842 .border_b_1()
8843 .border_color(cx.theme().colors().border_variant)
8844 .rounded_b_lg()
8845 .bg(cx.theme().colors().editor_background)
8846 .gap_1()
8847 .child(
8848 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8849 .shape(IconButtonShape::Square)
8850 .icon_size(IconSize::Small)
8851 // .disabled(!has_multiple_hunks)
8852 .tooltip({
8853 let focus_handle = editor.focus_handle(cx);
8854 move |window, cx| {
8855 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8856 }
8857 })
8858 .on_click({
8859 let editor = editor.clone();
8860 move |_event, window, cx| {
8861 editor.update(cx, |editor, cx| {
8862 let snapshot = editor.snapshot(window, cx);
8863 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8864 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8865 editor.expand_selected_diff_hunks(cx);
8866 });
8867 }
8868 }),
8869 )
8870 .child(
8871 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8872 .shape(IconButtonShape::Square)
8873 .icon_size(IconSize::Small)
8874 // .disabled(!has_multiple_hunks)
8875 .tooltip({
8876 let focus_handle = editor.focus_handle(cx);
8877 move |window, cx| {
8878 Tooltip::for_action_in(
8879 "Previous Hunk",
8880 &GoToPrevHunk,
8881 &focus_handle,
8882 window,
8883 cx,
8884 )
8885 }
8886 })
8887 .on_click({
8888 let editor = editor.clone();
8889 move |_event, window, cx| {
8890 editor.update(cx, |editor, cx| {
8891 let snapshot = editor.snapshot(window, cx);
8892 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8893 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8894 editor.expand_selected_diff_hunks(cx);
8895 });
8896 }
8897 }),
8898 )
8899 .child(
8900 IconButton::new("discard", IconName::Undo)
8901 .shape(IconButtonShape::Square)
8902 .icon_size(IconSize::Small)
8903 .tooltip({
8904 let focus_handle = editor.focus_handle(cx);
8905 move |window, cx| {
8906 Tooltip::for_action_in(
8907 "Discard Hunk",
8908 &RevertSelectedHunks,
8909 &focus_handle,
8910 window,
8911 cx,
8912 )
8913 }
8914 })
8915 .on_click({
8916 let editor = editor.clone();
8917 move |_event, window, cx| {
8918 editor.update(cx, |editor, cx| {
8919 let snapshot = editor.snapshot(window, cx);
8920 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8921 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
8922 });
8923 }
8924 }),
8925 )
8926 .into_any_element()
8927}