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 hunk_diff::{diff_hunk_to_display, DisplayDiffHunk},
16 hunk_status,
17 items::BufferSearchHighlights,
18 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
19 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
20 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
21 DocumentHighlightRead, DocumentHighlightWrite, Editor, EditorMode, EditorSettings,
22 EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GutterDimensions, HalfPageDown,
23 HalfPageUp, HandleInput, HoveredCursor, HoveredHunk, InlineCompletion, JumpData, LineDown,
24 LineUp, OpenExcerpts, PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase, Selection,
25 SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold, CURSORS_VISIBLE_FOR, 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 file_icons::FileIcons;
31use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
32use gpui::{
33 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
34 relative, size, svg, transparent_black, Action, AnyElement, AvailableSpace, Axis, Bounds,
35 ClickEvent, ClipboardItem, ContentMask, Corner, Corners, CursorStyle, DispatchPhase, Edges,
36 Element, ElementInputHandler, Entity, FontId, GlobalElementId, Hitbox, Hsla,
37 InteractiveElement, IntoElement, Length, ModifiersChangedEvent, MouseButton, MouseDownEvent,
38 MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta, ScrollWheelEvent,
39 ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled, Subscription,
40 TextRun, TextStyleRefinement, View, ViewContext, WeakView, WindowContext,
41};
42use itertools::Itertools;
43use language::{
44 language_settings::{
45 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
46 ShowWhitespaceSetting,
47 },
48 ChunkRendererContext, DiagnosticEntry,
49};
50use lsp::DiagnosticSeverity;
51use multi_buffer::{
52 Anchor, AnchorRangeExt, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint,
53 MultiBufferRow, MultiBufferSnapshot, ToOffset,
54};
55use project::project_settings::{GitGutterSetting, ProjectSettings};
56use settings::Settings;
57use smallvec::{smallvec, SmallVec};
58use std::{
59 any::TypeId,
60 borrow::Cow,
61 cmp::{self, Ordering},
62 fmt::{self, Write},
63 iter, mem,
64 ops::{Deref, Range},
65 rc::Rc,
66 sync::Arc,
67};
68use sum_tree::Bias;
69use text::BufferId;
70use theme::{ActiveTheme, Appearance, PlayerColor};
71use ui::{
72 prelude::*, ButtonLike, ButtonStyle, ContextMenu, KeyBinding, Tooltip, POPOVER_Y_PADDING,
73};
74use unicode_segmentation::UnicodeSegmentation;
75use util::{RangeExt, ResultExt};
76use workspace::{item::Item, notifications::NotifyTaskExt, Workspace};
77
78struct SelectionLayout {
79 head: DisplayPoint,
80 cursor_shape: CursorShape,
81 is_newest: bool,
82 is_local: bool,
83 range: Range<DisplayPoint>,
84 active_rows: Range<DisplayRow>,
85 user_name: Option<SharedString>,
86}
87
88impl SelectionLayout {
89 fn new<T: ToPoint + ToDisplayPoint + Clone>(
90 selection: Selection<T>,
91 line_mode: bool,
92 cursor_shape: CursorShape,
93 map: &DisplaySnapshot,
94 is_newest: bool,
95 is_local: bool,
96 user_name: Option<SharedString>,
97 ) -> Self {
98 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
99 let display_selection = point_selection.map(|p| p.to_display_point(map));
100 let mut range = display_selection.range();
101 let mut head = display_selection.head();
102 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
103 ..map.next_line_boundary(point_selection.end).1.row();
104
105 // vim visual line mode
106 if line_mode {
107 let point_range = map.expand_to_line(point_selection.range());
108 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
109 }
110
111 // any vim visual mode (including line mode)
112 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
113 && !range.is_empty()
114 && !selection.reversed
115 {
116 if head.column() > 0 {
117 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
118 } else if head.row().0 > 0 && head != map.max_point() {
119 head = map.clip_point(
120 DisplayPoint::new(
121 head.row().previous_row(),
122 map.line_len(head.row().previous_row()),
123 ),
124 Bias::Left,
125 );
126 // updating range.end is a no-op unless you're cursor is
127 // on the newline containing a multi-buffer divider
128 // in which case the clip_point may have moved the head up
129 // an additional row.
130 range.end = DisplayPoint::new(head.row().next_row(), 0);
131 active_rows.end = head.row();
132 }
133 }
134
135 Self {
136 head,
137 cursor_shape,
138 is_newest,
139 is_local,
140 range,
141 active_rows,
142 user_name,
143 }
144 }
145}
146
147pub struct EditorElement {
148 editor: View<Editor>,
149 style: EditorStyle,
150}
151
152type DisplayRowDelta = u32;
153
154impl EditorElement {
155 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
156
157 pub fn new(editor: &View<Editor>, style: EditorStyle) -> Self {
158 Self {
159 editor: editor.clone(),
160 style,
161 }
162 }
163
164 fn register_actions(&self, cx: &mut WindowContext) {
165 let view = &self.editor;
166 view.update(cx, |editor, cx| {
167 for action in editor.editor_actions.borrow().values() {
168 (action)(cx)
169 }
170 });
171
172 crate::rust_analyzer_ext::apply_related_actions(view, cx);
173 crate::clangd_ext::apply_related_actions(view, cx);
174 register_action(view, cx, Editor::open_context_menu);
175 register_action(view, cx, Editor::move_left);
176 register_action(view, cx, Editor::move_right);
177 register_action(view, cx, Editor::move_down);
178 register_action(view, cx, Editor::move_down_by_lines);
179 register_action(view, cx, Editor::select_down_by_lines);
180 register_action(view, cx, Editor::move_up);
181 register_action(view, cx, Editor::move_up_by_lines);
182 register_action(view, cx, Editor::select_up_by_lines);
183 register_action(view, cx, Editor::select_page_down);
184 register_action(view, cx, Editor::select_page_up);
185 register_action(view, cx, Editor::cancel);
186 register_action(view, cx, Editor::newline);
187 register_action(view, cx, Editor::newline_above);
188 register_action(view, cx, Editor::newline_below);
189 register_action(view, cx, Editor::backspace);
190 register_action(view, cx, Editor::delete);
191 register_action(view, cx, Editor::tab);
192 register_action(view, cx, Editor::tab_prev);
193 register_action(view, cx, Editor::indent);
194 register_action(view, cx, Editor::outdent);
195 register_action(view, cx, Editor::autoindent);
196 register_action(view, cx, Editor::delete_line);
197 register_action(view, cx, Editor::join_lines);
198 register_action(view, cx, Editor::sort_lines_case_sensitive);
199 register_action(view, cx, Editor::sort_lines_case_insensitive);
200 register_action(view, cx, Editor::reverse_lines);
201 register_action(view, cx, Editor::shuffle_lines);
202 register_action(view, cx, Editor::convert_to_upper_case);
203 register_action(view, cx, Editor::convert_to_lower_case);
204 register_action(view, cx, Editor::convert_to_title_case);
205 register_action(view, cx, Editor::convert_to_snake_case);
206 register_action(view, cx, Editor::convert_to_kebab_case);
207 register_action(view, cx, Editor::convert_to_upper_camel_case);
208 register_action(view, cx, Editor::convert_to_lower_camel_case);
209 register_action(view, cx, Editor::convert_to_opposite_case);
210 register_action(view, cx, Editor::delete_to_previous_word_start);
211 register_action(view, cx, Editor::delete_to_previous_subword_start);
212 register_action(view, cx, Editor::delete_to_next_word_end);
213 register_action(view, cx, Editor::delete_to_next_subword_end);
214 register_action(view, cx, Editor::delete_to_beginning_of_line);
215 register_action(view, cx, Editor::delete_to_end_of_line);
216 register_action(view, cx, Editor::cut_to_end_of_line);
217 register_action(view, cx, Editor::duplicate_line_up);
218 register_action(view, cx, Editor::duplicate_line_down);
219 register_action(view, cx, Editor::duplicate_selection);
220 register_action(view, cx, Editor::move_line_up);
221 register_action(view, cx, Editor::move_line_down);
222 register_action(view, cx, Editor::transpose);
223 register_action(view, cx, Editor::rewrap);
224 register_action(view, cx, Editor::cut);
225 register_action(view, cx, Editor::kill_ring_cut);
226 register_action(view, cx, Editor::kill_ring_yank);
227 register_action(view, cx, Editor::copy);
228 register_action(view, cx, Editor::paste);
229 register_action(view, cx, Editor::undo);
230 register_action(view, cx, Editor::redo);
231 register_action(view, cx, Editor::move_page_up);
232 register_action(view, cx, Editor::move_page_down);
233 register_action(view, cx, Editor::next_screen);
234 register_action(view, cx, Editor::scroll_cursor_top);
235 register_action(view, cx, Editor::scroll_cursor_center);
236 register_action(view, cx, Editor::scroll_cursor_bottom);
237 register_action(view, cx, Editor::scroll_cursor_center_top_bottom);
238 register_action(view, cx, |editor, _: &LineDown, cx| {
239 editor.scroll_screen(&ScrollAmount::Line(1.), cx)
240 });
241 register_action(view, cx, |editor, _: &LineUp, cx| {
242 editor.scroll_screen(&ScrollAmount::Line(-1.), cx)
243 });
244 register_action(view, cx, |editor, _: &HalfPageDown, cx| {
245 editor.scroll_screen(&ScrollAmount::Page(0.5), cx)
246 });
247 register_action(view, cx, |editor, HandleInput(text): &HandleInput, cx| {
248 if text.is_empty() {
249 return;
250 }
251 editor.handle_input(text, cx);
252 });
253 register_action(view, cx, |editor, _: &HalfPageUp, cx| {
254 editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
255 });
256 register_action(view, cx, |editor, _: &PageDown, cx| {
257 editor.scroll_screen(&ScrollAmount::Page(1.), cx)
258 });
259 register_action(view, cx, |editor, _: &PageUp, cx| {
260 editor.scroll_screen(&ScrollAmount::Page(-1.), cx)
261 });
262 register_action(view, cx, Editor::move_to_previous_word_start);
263 register_action(view, cx, Editor::move_to_previous_subword_start);
264 register_action(view, cx, Editor::move_to_next_word_end);
265 register_action(view, cx, Editor::move_to_next_subword_end);
266 register_action(view, cx, Editor::move_to_beginning_of_line);
267 register_action(view, cx, Editor::move_to_end_of_line);
268 register_action(view, cx, Editor::move_to_start_of_paragraph);
269 register_action(view, cx, Editor::move_to_end_of_paragraph);
270 register_action(view, cx, Editor::move_to_beginning);
271 register_action(view, cx, Editor::move_to_end);
272 register_action(view, cx, Editor::select_up);
273 register_action(view, cx, Editor::select_down);
274 register_action(view, cx, Editor::select_left);
275 register_action(view, cx, Editor::select_right);
276 register_action(view, cx, Editor::select_to_previous_word_start);
277 register_action(view, cx, Editor::select_to_previous_subword_start);
278 register_action(view, cx, Editor::select_to_next_word_end);
279 register_action(view, cx, Editor::select_to_next_subword_end);
280 register_action(view, cx, Editor::select_to_beginning_of_line);
281 register_action(view, cx, Editor::select_to_end_of_line);
282 register_action(view, cx, Editor::select_to_start_of_paragraph);
283 register_action(view, cx, Editor::select_to_end_of_paragraph);
284 register_action(view, cx, Editor::select_to_beginning);
285 register_action(view, cx, Editor::select_to_end);
286 register_action(view, cx, Editor::select_all);
287 register_action(view, cx, |editor, action, cx| {
288 editor.select_all_matches(action, cx).log_err();
289 });
290 register_action(view, cx, Editor::select_line);
291 register_action(view, cx, Editor::split_selection_into_lines);
292 register_action(view, cx, Editor::add_selection_above);
293 register_action(view, cx, Editor::add_selection_below);
294 register_action(view, cx, |editor, action, cx| {
295 editor.select_next(action, cx).log_err();
296 });
297 register_action(view, cx, |editor, action, cx| {
298 editor.select_previous(action, cx).log_err();
299 });
300 register_action(view, cx, Editor::toggle_comments);
301 register_action(view, cx, Editor::select_larger_syntax_node);
302 register_action(view, cx, Editor::select_smaller_syntax_node);
303 register_action(view, cx, Editor::select_enclosing_symbol);
304 register_action(view, cx, Editor::move_to_enclosing_bracket);
305 register_action(view, cx, Editor::undo_selection);
306 register_action(view, cx, Editor::redo_selection);
307 if !view.read(cx).is_singleton(cx) {
308 register_action(view, cx, Editor::expand_excerpts);
309 register_action(view, cx, Editor::expand_excerpts_up);
310 register_action(view, cx, Editor::expand_excerpts_down);
311 }
312 register_action(view, cx, Editor::go_to_diagnostic);
313 register_action(view, cx, Editor::go_to_prev_diagnostic);
314 register_action(view, cx, Editor::go_to_next_hunk);
315 register_action(view, cx, Editor::go_to_prev_hunk);
316 register_action(view, cx, |editor, a, cx| {
317 editor.go_to_definition(a, cx).detach_and_log_err(cx);
318 });
319 register_action(view, cx, |editor, a, cx| {
320 editor.go_to_definition_split(a, cx).detach_and_log_err(cx);
321 });
322 register_action(view, cx, |editor, a, cx| {
323 editor.go_to_declaration(a, cx).detach_and_log_err(cx);
324 });
325 register_action(view, cx, |editor, a, cx| {
326 editor.go_to_declaration_split(a, cx).detach_and_log_err(cx);
327 });
328 register_action(view, cx, |editor, a, cx| {
329 editor.go_to_implementation(a, cx).detach_and_log_err(cx);
330 });
331 register_action(view, cx, |editor, a, cx| {
332 editor
333 .go_to_implementation_split(a, cx)
334 .detach_and_log_err(cx);
335 });
336 register_action(view, cx, |editor, a, cx| {
337 editor.go_to_type_definition(a, cx).detach_and_log_err(cx);
338 });
339 register_action(view, cx, |editor, a, cx| {
340 editor
341 .go_to_type_definition_split(a, cx)
342 .detach_and_log_err(cx);
343 });
344 register_action(view, cx, Editor::open_url);
345 register_action(view, cx, Editor::open_selected_filename);
346 register_action(view, cx, Editor::fold);
347 register_action(view, cx, Editor::fold_at_level);
348 register_action(view, cx, Editor::fold_all);
349 register_action(view, cx, Editor::fold_function_bodies);
350 register_action(view, cx, Editor::fold_at);
351 register_action(view, cx, Editor::fold_recursive);
352 register_action(view, cx, Editor::toggle_fold);
353 register_action(view, cx, Editor::toggle_fold_recursive);
354 register_action(view, cx, Editor::unfold_lines);
355 register_action(view, cx, Editor::unfold_recursive);
356 register_action(view, cx, Editor::unfold_all);
357 register_action(view, cx, Editor::unfold_at);
358 register_action(view, cx, Editor::fold_selected_ranges);
359 register_action(view, cx, Editor::show_completions);
360 register_action(view, cx, Editor::toggle_code_actions);
361 register_action(view, cx, Editor::open_excerpts);
362 register_action(view, cx, Editor::open_excerpts_in_split);
363 register_action(view, cx, Editor::open_proposed_changes_editor);
364 register_action(view, cx, Editor::toggle_soft_wrap);
365 register_action(view, cx, Editor::toggle_tab_bar);
366 register_action(view, cx, Editor::toggle_line_numbers);
367 register_action(view, cx, Editor::toggle_relative_line_numbers);
368 register_action(view, cx, Editor::toggle_indent_guides);
369 register_action(view, cx, Editor::toggle_inlay_hints);
370 register_action(view, cx, Editor::toggle_inline_completions);
371 register_action(view, cx, hover_popover::hover);
372 register_action(view, cx, Editor::reveal_in_finder);
373 register_action(view, cx, Editor::copy_path);
374 register_action(view, cx, Editor::copy_relative_path);
375 register_action(view, cx, Editor::copy_highlight_json);
376 register_action(view, cx, Editor::copy_permalink_to_line);
377 register_action(view, cx, Editor::open_permalink_to_line);
378 register_action(view, cx, Editor::copy_file_location);
379 register_action(view, cx, Editor::toggle_git_blame);
380 register_action(view, cx, Editor::toggle_git_blame_inline);
381 register_action(view, cx, Editor::toggle_hunk_diff);
382 register_action(view, cx, Editor::expand_all_hunk_diffs);
383 register_action(view, cx, |editor, action, cx| {
384 if let Some(task) = editor.format(action, cx) {
385 task.detach_and_notify_err(cx);
386 } else {
387 cx.propagate();
388 }
389 });
390 register_action(view, cx, |editor, action, cx| {
391 if let Some(task) = editor.format_selections(action, cx) {
392 task.detach_and_notify_err(cx);
393 } else {
394 cx.propagate();
395 }
396 });
397 register_action(view, cx, Editor::restart_language_server);
398 register_action(view, cx, Editor::cancel_language_server_work);
399 register_action(view, cx, Editor::show_character_palette);
400 register_action(view, cx, |editor, action, cx| {
401 if let Some(task) = editor.confirm_completion(action, cx) {
402 task.detach_and_notify_err(cx);
403 } else {
404 cx.propagate();
405 }
406 });
407 register_action(view, cx, |editor, action, cx| {
408 if let Some(task) = editor.compose_completion(action, cx) {
409 task.detach_and_notify_err(cx);
410 } else {
411 cx.propagate();
412 }
413 });
414 register_action(view, cx, |editor, action, cx| {
415 if let Some(task) = editor.confirm_code_action(action, cx) {
416 task.detach_and_notify_err(cx);
417 } else {
418 cx.propagate();
419 }
420 });
421 register_action(view, cx, |editor, action, cx| {
422 if let Some(task) = editor.rename(action, cx) {
423 task.detach_and_notify_err(cx);
424 } else {
425 cx.propagate();
426 }
427 });
428 register_action(view, cx, |editor, action, cx| {
429 if let Some(task) = editor.confirm_rename(action, cx) {
430 task.detach_and_notify_err(cx);
431 } else {
432 cx.propagate();
433 }
434 });
435 register_action(view, cx, |editor, action, cx| {
436 if let Some(task) = editor.find_all_references(action, cx) {
437 task.detach_and_log_err(cx);
438 } else {
439 cx.propagate();
440 }
441 });
442 register_action(view, cx, Editor::show_signature_help);
443 register_action(view, cx, Editor::next_inline_completion);
444 register_action(view, cx, Editor::previous_inline_completion);
445 register_action(view, cx, Editor::show_inline_completion);
446 register_action(view, cx, Editor::context_menu_first);
447 register_action(view, cx, Editor::context_menu_prev);
448 register_action(view, cx, Editor::context_menu_next);
449 register_action(view, cx, Editor::context_menu_last);
450 register_action(view, cx, Editor::display_cursor_names);
451 register_action(view, cx, Editor::unique_lines_case_insensitive);
452 register_action(view, cx, Editor::unique_lines_case_sensitive);
453 register_action(view, cx, Editor::accept_partial_inline_completion);
454 register_action(view, cx, Editor::accept_inline_completion);
455 register_action(view, cx, Editor::revert_file);
456 register_action(view, cx, Editor::revert_selected_hunks);
457 register_action(view, cx, Editor::apply_all_diff_hunks);
458 register_action(view, cx, Editor::apply_selected_diff_hunks);
459 register_action(view, cx, Editor::open_active_item_in_terminal);
460 register_action(view, cx, Editor::reload_file);
461 register_action(view, cx, Editor::spawn_nearest_task);
462 register_action(view, cx, Editor::insert_uuid_v4);
463 register_action(view, cx, Editor::insert_uuid_v7);
464 }
465
466 fn register_key_listeners(&self, cx: &mut WindowContext, layout: &EditorLayout) {
467 let position_map = layout.position_map.clone();
468 cx.on_key_event({
469 let editor = self.editor.clone();
470 let text_hitbox = layout.text_hitbox.clone();
471 move |event: &ModifiersChangedEvent, phase, cx| {
472 if phase != DispatchPhase::Bubble {
473 return;
474 }
475 editor.update(cx, |editor, cx| {
476 if editor.hover_state.focused(cx) {
477 return;
478 }
479 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, cx)
480 })
481 }
482 });
483 }
484
485 fn modifiers_changed(
486 editor: &mut Editor,
487 event: &ModifiersChangedEvent,
488 position_map: &PositionMap,
489 text_hitbox: &Hitbox,
490 cx: &mut ViewContext<Editor>,
491 ) {
492 let mouse_position = cx.mouse_position();
493 if !text_hitbox.is_hovered(cx) {
494 return;
495 }
496
497 editor.update_hovered_link(
498 position_map.point_for_position(text_hitbox.bounds, mouse_position),
499 &position_map.snapshot,
500 event.modifiers,
501 cx,
502 )
503 }
504
505 #[allow(clippy::too_many_arguments)]
506 fn mouse_left_down(
507 editor: &mut Editor,
508 event: &MouseDownEvent,
509 hovered_hunk: Option<HoveredHunk>,
510 position_map: &PositionMap,
511 text_hitbox: &Hitbox,
512 gutter_hitbox: &Hitbox,
513 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
514 cx: &mut ViewContext<Editor>,
515 ) {
516 if cx.default_prevented() {
517 return;
518 }
519
520 let mut click_count = event.click_count;
521 let mut modifiers = event.modifiers;
522
523 if let Some(hovered_hunk) = hovered_hunk {
524 editor.toggle_hovered_hunk(&hovered_hunk, cx);
525 cx.notify();
526 return;
527 } else if gutter_hitbox.is_hovered(cx) {
528 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
529 } else if !text_hitbox.is_hovered(cx) {
530 return;
531 }
532
533 let is_singleton = editor.buffer().read(cx).is_singleton();
534
535 if click_count == 2 && !is_singleton {
536 match EditorSettings::get_global(cx).double_click_in_multibuffer {
537 DoubleClickInMultibuffer::Select => {
538 // do nothing special on double click, all selection logic is below
539 }
540 DoubleClickInMultibuffer::Open => {
541 if modifiers.alt {
542 // if double click is made with alt, pretend it's a regular double click without opening and alt,
543 // and run the selection logic.
544 modifiers.alt = false;
545 } else {
546 let scroll_position_row =
547 position_map.scroll_pixel_position.y / position_map.line_height;
548 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
549 + position_map.scroll_pixel_position.y)
550 / position_map.line_height)
551 as u32;
552 let multi_buffer_row = position_map
553 .snapshot
554 .display_point_to_point(
555 DisplayPoint::new(DisplayRow(display_row), 0),
556 Bias::Right,
557 )
558 .row;
559 let line_offset_from_top = display_row - scroll_position_row as u32;
560 // if double click is made without alt, open the corresponding excerp
561 editor.open_excerpts_common(
562 Some(JumpData::MultiBufferRow {
563 row: MultiBufferRow(multi_buffer_row),
564 line_offset_from_top,
565 }),
566 false,
567 cx,
568 );
569 return;
570 }
571 }
572 }
573 }
574
575 let point_for_position =
576 position_map.point_for_position(text_hitbox.bounds, event.position);
577 let position = point_for_position.previous_valid;
578 if modifiers.shift && modifiers.alt {
579 editor.select(
580 SelectPhase::BeginColumnar {
581 position,
582 reset: false,
583 goal_column: point_for_position.exact_unclipped.column(),
584 },
585 cx,
586 );
587 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
588 {
589 editor.select(
590 SelectPhase::Extend {
591 position,
592 click_count,
593 },
594 cx,
595 );
596 } else {
597 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
598 let multi_cursor_modifier = match multi_cursor_setting {
599 MultiCursorModifier::Alt => modifiers.alt,
600 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
601 };
602 editor.select(
603 SelectPhase::Begin {
604 position,
605 add: multi_cursor_modifier,
606 click_count,
607 },
608 cx,
609 );
610 }
611 cx.stop_propagation();
612
613 if !is_singleton {
614 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
615 + position_map.scroll_pixel_position.y)
616 / position_map.line_height) as u32;
617 let multi_buffer_row = position_map
618 .snapshot
619 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
620 .row;
621 if line_numbers
622 .get(&MultiBufferRow(multi_buffer_row))
623 .and_then(|line_number| line_number.hitbox.as_ref())
624 .is_some_and(|hitbox| hitbox.contains(&event.position))
625 {
626 let scroll_position_row =
627 position_map.scroll_pixel_position.y / position_map.line_height;
628 let line_offset_from_top = display_row - scroll_position_row as u32;
629
630 editor.open_excerpts_common(
631 Some(JumpData::MultiBufferRow {
632 row: MultiBufferRow(multi_buffer_row),
633 line_offset_from_top,
634 }),
635 modifiers.alt,
636 cx,
637 );
638 cx.stop_propagation();
639 }
640 }
641 }
642
643 fn mouse_right_down(
644 editor: &mut Editor,
645 event: &MouseDownEvent,
646 position_map: &PositionMap,
647 text_hitbox: &Hitbox,
648 cx: &mut ViewContext<Editor>,
649 ) {
650 if !text_hitbox.is_hovered(cx) {
651 return;
652 }
653 let point_for_position =
654 position_map.point_for_position(text_hitbox.bounds, event.position);
655 mouse_context_menu::deploy_context_menu(
656 editor,
657 Some(event.position),
658 point_for_position.previous_valid,
659 cx,
660 );
661 cx.stop_propagation();
662 }
663
664 fn mouse_middle_down(
665 editor: &mut Editor,
666 event: &MouseDownEvent,
667 position_map: &PositionMap,
668 text_hitbox: &Hitbox,
669 cx: &mut ViewContext<Editor>,
670 ) {
671 if !text_hitbox.is_hovered(cx) || cx.default_prevented() {
672 return;
673 }
674
675 let point_for_position =
676 position_map.point_for_position(text_hitbox.bounds, event.position);
677 let position = point_for_position.previous_valid;
678
679 editor.select(
680 SelectPhase::BeginColumnar {
681 position,
682 reset: true,
683 goal_column: point_for_position.exact_unclipped.column(),
684 },
685 cx,
686 );
687 }
688
689 fn mouse_up(
690 editor: &mut Editor,
691 event: &MouseUpEvent,
692 position_map: &PositionMap,
693 text_hitbox: &Hitbox,
694 cx: &mut ViewContext<Editor>,
695 ) {
696 let end_selection = editor.has_pending_selection();
697 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
698
699 if end_selection {
700 editor.select(SelectPhase::End, cx);
701 }
702
703 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
704 let multi_cursor_modifier = match multi_cursor_setting {
705 MultiCursorModifier::Alt => event.modifiers.secondary(),
706 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
707 };
708
709 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(cx) {
710 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
711 editor.handle_click_hovered_link(point, event.modifiers, cx);
712
713 cx.stop_propagation();
714 } else if end_selection && pending_nonempty_selections {
715 cx.stop_propagation();
716 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
717 && event.button == MouseButton::Middle
718 {
719 if !text_hitbox.is_hovered(cx) || editor.read_only(cx) {
720 return;
721 }
722
723 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
724 if EditorSettings::get_global(cx).middle_click_paste {
725 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
726 let point_for_position =
727 position_map.point_for_position(text_hitbox.bounds, event.position);
728 let position = point_for_position.previous_valid;
729
730 editor.select(
731 SelectPhase::Begin {
732 position,
733 add: false,
734 click_count: 1,
735 },
736 cx,
737 );
738 editor.insert(&text, cx);
739 }
740 cx.stop_propagation()
741 }
742 }
743 }
744
745 fn mouse_dragged(
746 editor: &mut Editor,
747 event: &MouseMoveEvent,
748 position_map: &PositionMap,
749 text_bounds: Bounds<Pixels>,
750 cx: &mut ViewContext<Editor>,
751 ) {
752 if !editor.has_pending_selection() {
753 return;
754 }
755
756 let point_for_position = position_map.point_for_position(text_bounds, event.position);
757 let mut scroll_delta = gpui::Point::<f32>::default();
758 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
759 let top = text_bounds.origin.y + vertical_margin;
760 let bottom = text_bounds.bottom_left().y - vertical_margin;
761 if event.position.y < top {
762 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
763 }
764 if event.position.y > bottom {
765 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
766 }
767
768 // We need horizontal width of text
769 let style = editor.style.clone().unwrap_or_default();
770 let font_id = cx.text_system().resolve_font(&style.text.font());
771 let font_size = style.text.font_size.to_pixels(cx.rem_size());
772 let em_width = cx
773 .text_system()
774 .typographic_bounds(font_id, font_size, 'm')
775 .unwrap()
776 .size
777 .width;
778
779 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
780
781 let scroll_space: Pixels = scroll_margin_x * em_width;
782
783 let left = text_bounds.origin.x + scroll_space;
784 let right = text_bounds.top_right().x - scroll_space;
785
786 if event.position.x < left {
787 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
788 }
789 if event.position.x > right {
790 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
791 }
792
793 editor.select(
794 SelectPhase::Update {
795 position: point_for_position.previous_valid,
796 goal_column: point_for_position.exact_unclipped.column(),
797 scroll_delta,
798 },
799 cx,
800 );
801 }
802
803 fn mouse_moved(
804 editor: &mut Editor,
805 event: &MouseMoveEvent,
806 position_map: &PositionMap,
807 text_hitbox: &Hitbox,
808 gutter_hitbox: &Hitbox,
809 cx: &mut ViewContext<Editor>,
810 ) {
811 let modifiers = event.modifiers;
812 let gutter_hovered = gutter_hitbox.is_hovered(cx);
813 editor.set_gutter_hovered(gutter_hovered, cx);
814
815 // Don't trigger hover popover if mouse is hovering over context menu
816 if text_hitbox.is_hovered(cx) {
817 let point_for_position =
818 position_map.point_for_position(text_hitbox.bounds, event.position);
819
820 editor.update_hovered_link(point_for_position, &position_map.snapshot, modifiers, cx);
821
822 if let Some(point) = point_for_position.as_valid() {
823 let anchor = position_map
824 .snapshot
825 .buffer_snapshot
826 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
827 hover_at(editor, Some(anchor), cx);
828 Self::update_visible_cursor(editor, point, position_map, cx);
829 } else {
830 hover_at(editor, None, cx);
831 }
832 } else {
833 editor.hide_hovered_link(cx);
834 hover_at(editor, None, cx);
835 if gutter_hovered {
836 cx.stop_propagation();
837 }
838 }
839 }
840
841 fn update_visible_cursor(
842 editor: &mut Editor,
843 point: DisplayPoint,
844 position_map: &PositionMap,
845 cx: &mut ViewContext<Editor>,
846 ) {
847 let snapshot = &position_map.snapshot;
848 let Some(hub) = editor.collaboration_hub() else {
849 return;
850 };
851 let start = snapshot.display_snapshot.clip_point(
852 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
853 Bias::Left,
854 );
855 let end = snapshot.display_snapshot.clip_point(
856 DisplayPoint::new(
857 point.row(),
858 (point.column() + 1).min(snapshot.line_len(point.row())),
859 ),
860 Bias::Right,
861 );
862
863 let range = snapshot
864 .buffer_snapshot
865 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
866 ..snapshot
867 .buffer_snapshot
868 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
869
870 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
871 return;
872 };
873 let key = crate::HoveredCursor {
874 replica_id: selection.replica_id,
875 selection_id: selection.selection.id,
876 };
877 editor.hovered_cursors.insert(
878 key.clone(),
879 cx.spawn(|editor, mut cx| async move {
880 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
881 editor
882 .update(&mut cx, |editor, cx| {
883 editor.hovered_cursors.remove(&key);
884 cx.notify();
885 })
886 .ok();
887 }),
888 );
889 cx.notify()
890 }
891
892 #[allow(clippy::too_many_arguments)]
893 fn layout_selections(
894 &self,
895 start_anchor: Anchor,
896 end_anchor: Anchor,
897 local_selections: &[Selection<Point>],
898 snapshot: &EditorSnapshot,
899 start_row: DisplayRow,
900 end_row: DisplayRow,
901 cx: &mut WindowContext,
902 ) -> (
903 Vec<(PlayerColor, Vec<SelectionLayout>)>,
904 BTreeMap<DisplayRow, bool>,
905 Option<DisplayPoint>,
906 ) {
907 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
908 let mut active_rows = BTreeMap::new();
909 let mut newest_selection_head = None;
910 self.editor.update(cx, |editor, cx| {
911 if editor.show_local_selections {
912 let mut layouts = Vec::new();
913 let newest = editor.selections.newest(cx);
914 for selection in local_selections.iter().cloned() {
915 let is_empty = selection.start == selection.end;
916 let is_newest = selection == newest;
917
918 let layout = SelectionLayout::new(
919 selection,
920 editor.selections.line_mode,
921 editor.cursor_shape,
922 &snapshot.display_snapshot,
923 is_newest,
924 editor.leader_peer_id.is_none(),
925 None,
926 );
927 if is_newest {
928 newest_selection_head = Some(layout.head);
929 }
930
931 for row in cmp::max(layout.active_rows.start.0, start_row.0)
932 ..=cmp::min(layout.active_rows.end.0, end_row.0)
933 {
934 let contains_non_empty_selection =
935 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
936 *contains_non_empty_selection |= !is_empty;
937 }
938 layouts.push(layout);
939 }
940
941 let player = if editor.read_only(cx) {
942 cx.theme().players().read_only()
943 } else {
944 self.style.local_player
945 };
946
947 selections.push((player, layouts));
948 }
949
950 if let Some(collaboration_hub) = &editor.collaboration_hub {
951 // When following someone, render the local selections in their color.
952 if let Some(leader_id) = editor.leader_peer_id {
953 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
954 {
955 if let Some(participant_index) = collaboration_hub
956 .user_participant_indices(cx)
957 .get(&collaborator.user_id)
958 {
959 if let Some((local_selection_style, _)) = selections.first_mut() {
960 *local_selection_style = cx
961 .theme()
962 .players()
963 .color_for_participant(participant_index.0);
964 }
965 }
966 }
967 }
968
969 let mut remote_selections = HashMap::default();
970 for selection in snapshot.remote_selections_in_range(
971 &(start_anchor..end_anchor),
972 collaboration_hub.as_ref(),
973 cx,
974 ) {
975 let selection_style =
976 Self::get_participant_color(selection.participant_index, cx);
977
978 // Don't re-render the leader's selections, since the local selections
979 // match theirs.
980 if Some(selection.peer_id) == editor.leader_peer_id {
981 continue;
982 }
983 let key = HoveredCursor {
984 replica_id: selection.replica_id,
985 selection_id: selection.selection.id,
986 };
987
988 let is_shown =
989 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
990
991 remote_selections
992 .entry(selection.replica_id)
993 .or_insert((selection_style, Vec::new()))
994 .1
995 .push(SelectionLayout::new(
996 selection.selection,
997 selection.line_mode,
998 selection.cursor_shape,
999 &snapshot.display_snapshot,
1000 false,
1001 false,
1002 if is_shown { selection.user_name } else { None },
1003 ));
1004 }
1005
1006 selections.extend(remote_selections.into_values());
1007 } else if !editor.is_focused(cx) && editor.show_cursor_when_unfocused {
1008 let player = if editor.read_only(cx) {
1009 cx.theme().players().read_only()
1010 } else {
1011 self.style.local_player
1012 };
1013 let layouts = snapshot
1014 .buffer_snapshot
1015 .selections_in_range(&(start_anchor..end_anchor), true)
1016 .map(move |(_, line_mode, cursor_shape, selection)| {
1017 SelectionLayout::new(
1018 selection,
1019 line_mode,
1020 cursor_shape,
1021 &snapshot.display_snapshot,
1022 false,
1023 false,
1024 None,
1025 )
1026 })
1027 .collect::<Vec<_>>();
1028 selections.push((player, layouts));
1029 }
1030 });
1031 (selections, active_rows, newest_selection_head)
1032 }
1033
1034 fn collect_cursors(
1035 &self,
1036 snapshot: &EditorSnapshot,
1037 cx: &mut WindowContext,
1038 ) -> Vec<(DisplayPoint, Hsla)> {
1039 let editor = self.editor.read(cx);
1040 let mut cursors = Vec::new();
1041 let mut skip_local = false;
1042 let mut add_cursor = |anchor: Anchor, color| {
1043 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1044 };
1045 // Remote cursors
1046 if let Some(collaboration_hub) = &editor.collaboration_hub {
1047 for remote_selection in snapshot.remote_selections_in_range(
1048 &(Anchor::min()..Anchor::max()),
1049 collaboration_hub.deref(),
1050 cx,
1051 ) {
1052 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1053 add_cursor(remote_selection.selection.head(), color.cursor);
1054 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1055 skip_local = true;
1056 }
1057 }
1058 }
1059 // Local cursors
1060 if !skip_local {
1061 let color = cx.theme().players().local().cursor;
1062 editor.selections.disjoint.iter().for_each(|selection| {
1063 add_cursor(selection.head(), color);
1064 });
1065 if let Some(ref selection) = editor.selections.pending_anchor() {
1066 add_cursor(selection.head(), color);
1067 }
1068 }
1069 cursors
1070 }
1071
1072 #[allow(clippy::too_many_arguments)]
1073 fn layout_visible_cursors(
1074 &self,
1075 snapshot: &EditorSnapshot,
1076 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1077 block_start_rows: &HashSet<DisplayRow>,
1078 visible_display_row_range: Range<DisplayRow>,
1079 line_layouts: &[LineWithInvisibles],
1080 text_hitbox: &Hitbox,
1081 content_origin: gpui::Point<Pixels>,
1082 scroll_position: gpui::Point<f32>,
1083 scroll_pixel_position: gpui::Point<Pixels>,
1084 line_height: Pixels,
1085 em_width: Pixels,
1086 em_advance: Pixels,
1087 autoscroll_containing_element: bool,
1088 cx: &mut WindowContext,
1089 ) -> Vec<CursorLayout> {
1090 let mut autoscroll_bounds = None;
1091 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1092 let mut cursors = Vec::new();
1093 for (player_color, selections) in selections {
1094 for selection in selections {
1095 let cursor_position = selection.head;
1096
1097 let in_range = visible_display_row_range.contains(&cursor_position.row());
1098 if (selection.is_local && !editor.show_local_cursors(cx))
1099 || !in_range
1100 || block_start_rows.contains(&cursor_position.row())
1101 {
1102 continue;
1103 }
1104
1105 let cursor_row_layout = &line_layouts
1106 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1107 let cursor_column = cursor_position.column() as usize;
1108
1109 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1110 let mut block_width =
1111 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1112 if block_width == Pixels::ZERO {
1113 block_width = em_advance;
1114 }
1115 let block_text = if let CursorShape::Block = selection.cursor_shape {
1116 snapshot
1117 .grapheme_at(cursor_position)
1118 .or_else(|| {
1119 if cursor_column == 0 {
1120 snapshot.placeholder_text().and_then(|s| {
1121 s.graphemes(true).next().map(|s| s.to_string().into())
1122 })
1123 } else {
1124 None
1125 }
1126 })
1127 .and_then(|text| {
1128 let len = text.len();
1129
1130 let font = cursor_row_layout
1131 .font_id_for_index(cursor_column)
1132 .and_then(|cursor_font_id| {
1133 cx.text_system().get_font_for_id(cursor_font_id)
1134 })
1135 .unwrap_or(self.style.text.font());
1136
1137 // Invert the text color for the block cursor. Ensure that the text
1138 // color is opaque enough to be visible against the background color.
1139 //
1140 // 0.75 is an arbitrary threshold to determine if the background color is
1141 // opaque enough to use as a text color.
1142 //
1143 // TODO: In the future we should ensure themes have a `text_inverse` color.
1144 let color = if cx.theme().colors().editor_background.a < 0.75 {
1145 match cx.theme().appearance {
1146 Appearance::Dark => Hsla::black(),
1147 Appearance::Light => Hsla::white(),
1148 }
1149 } else {
1150 cx.theme().colors().editor_background
1151 };
1152
1153 cx.text_system()
1154 .shape_line(
1155 text,
1156 cursor_row_layout.font_size,
1157 &[TextRun {
1158 len,
1159 font,
1160 color,
1161 background_color: None,
1162 strikethrough: None,
1163 underline: None,
1164 }],
1165 )
1166 .log_err()
1167 })
1168 } else {
1169 None
1170 };
1171
1172 let x = cursor_character_x - scroll_pixel_position.x;
1173 let y = (cursor_position.row().as_f32()
1174 - scroll_pixel_position.y / line_height)
1175 * line_height;
1176 if selection.is_newest {
1177 editor.pixel_position_of_newest_cursor = Some(point(
1178 text_hitbox.origin.x + x + block_width / 2.,
1179 text_hitbox.origin.y + y + line_height / 2.,
1180 ));
1181
1182 if autoscroll_containing_element {
1183 let top = text_hitbox.origin.y
1184 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1185 * line_height;
1186 let left = text_hitbox.origin.x
1187 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1188 .max(0.)
1189 * em_width;
1190
1191 let bottom = text_hitbox.origin.y
1192 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1193 * line_height;
1194 let right = text_hitbox.origin.x
1195 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1196 * em_width;
1197
1198 autoscroll_bounds =
1199 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1200 }
1201 }
1202
1203 let mut cursor = CursorLayout {
1204 color: player_color.cursor,
1205 block_width,
1206 origin: point(x, y),
1207 line_height,
1208 shape: selection.cursor_shape,
1209 block_text,
1210 cursor_name: None,
1211 };
1212 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1213 string: name,
1214 color: self.style.background,
1215 is_top_row: cursor_position.row().0 == 0,
1216 });
1217 cursor.layout(content_origin, cursor_name, cx);
1218 cursors.push(cursor);
1219 }
1220 }
1221 cursors
1222 });
1223
1224 if let Some(bounds) = autoscroll_bounds {
1225 cx.request_autoscroll(bounds);
1226 }
1227
1228 cursor_layouts
1229 }
1230
1231 fn layout_scrollbars(
1232 &self,
1233 snapshot: &EditorSnapshot,
1234 scrollbar_range_data: ScrollbarRangeData,
1235 scroll_position: gpui::Point<f32>,
1236 non_visible_cursors: bool,
1237 cx: &mut WindowContext,
1238 ) -> AxisPair<Option<ScrollbarLayout>> {
1239 let letter_size = scrollbar_range_data.letter_size;
1240 let text_units_per_page = axis_pair(
1241 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1242 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1243 );
1244
1245 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1246 let show_scrollbars = self.editor.read(cx).show_scrollbars
1247 && match scrollbar_settings.show {
1248 ShowScrollbar::Auto => {
1249 let editor = self.editor.read(cx);
1250 let is_singleton = editor.is_singleton(cx);
1251 // Git
1252 (is_singleton && scrollbar_settings.git_diff && !snapshot.diff_map.is_empty())
1253 ||
1254 // Buffer Search Results
1255 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1256 ||
1257 // Selected Symbol Occurrences
1258 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1259 ||
1260 // Diagnostics
1261 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1262 ||
1263 // Cursors out of sight
1264 non_visible_cursors
1265 ||
1266 // Scrollmanager
1267 editor.scroll_manager.scrollbars_visible()
1268 }
1269 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1270 ShowScrollbar::Always => true,
1271 ShowScrollbar::Never => false,
1272 };
1273
1274 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1275
1276 if snapshot.mode != EditorMode::Full {
1277 return axis_pair(None, None);
1278 }
1279
1280 let visible_range = axis_pair(
1281 axes.horizontal
1282 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1283 axes.vertical
1284 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1285 );
1286
1287 // If a drag took place after we started dragging the scrollbar,
1288 // cancel the scrollbar drag.
1289 if cx.has_active_drag() {
1290 self.editor.update(cx, |editor, cx| {
1291 editor
1292 .scroll_manager
1293 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1294 editor
1295 .scroll_manager
1296 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1297 });
1298 }
1299
1300 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1301
1302 let track_bounds = axis_pair(
1303 axes.horizontal.then(|| {
1304 Bounds::from_corners(
1305 point(
1306 text_bounds.bottom_left().x,
1307 text_bounds.bottom_left().y - self.style.scrollbar_width,
1308 ),
1309 point(
1310 text_bounds.bottom_right().x
1311 - if axes.vertical {
1312 self.style.scrollbar_width
1313 } else {
1314 px(0.)
1315 },
1316 text_bounds.bottom_right().y,
1317 ),
1318 )
1319 }),
1320 axes.vertical.then(|| {
1321 Bounds::from_corners(
1322 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1323 text_bounds.bottom_right(),
1324 )
1325 }),
1326 );
1327
1328 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1329 let total_text_units = axis_pair(
1330 Some(scroll_range_size.width / letter_size.width),
1331 Some(scroll_range_size.height / letter_size.height),
1332 );
1333
1334 let thumb_size = axis_pair(
1335 total_text_units
1336 .horizontal
1337 .zip(track_bounds.horizontal)
1338 .map(|(total_text_units_x, track_bounds_x)| {
1339 let thumb_percent =
1340 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1341
1342 track_bounds_x.size.width * thumb_percent
1343 }),
1344 total_text_units.vertical.zip(track_bounds.vertical).map(
1345 |(total_text_units_y, track_bounds_y)| {
1346 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1347
1348 track_bounds_y.size.height * thumb_percent
1349 },
1350 ),
1351 );
1352
1353 // NOTE: Space not taken by track bounds divided by text units not on screen
1354 let text_unit_size = axis_pair(
1355 thumb_size
1356 .horizontal
1357 .zip(track_bounds.horizontal)
1358 .zip(total_text_units.horizontal)
1359 .map(|((thumb_size, track_bounds), total_text_units)| {
1360 (track_bounds.size.width - thumb_size)
1361 / (total_text_units - text_units_per_page.horizontal).max(0.)
1362 }),
1363 thumb_size
1364 .vertical
1365 .zip(track_bounds.vertical)
1366 .zip(total_text_units.vertical)
1367 .map(|((thumb_size, track_bounds), total_text_units)| {
1368 (track_bounds.size.height - thumb_size)
1369 / (total_text_units - text_units_per_page.vertical).max(0.)
1370 }),
1371 );
1372
1373 let horizontal_scrollbar = track_bounds
1374 .horizontal
1375 .zip(visible_range.horizontal)
1376 .zip(text_unit_size.horizontal)
1377 .zip(thumb_size.horizontal)
1378 .map(
1379 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1380 hitbox: cx.insert_hitbox(track_bounds, false),
1381 visible_range,
1382 text_unit_size,
1383 visible: show_scrollbars,
1384 thumb_size,
1385 axis: Axis::Horizontal,
1386 },
1387 );
1388
1389 let vertical_scrollbar = track_bounds
1390 .vertical
1391 .zip(visible_range.vertical)
1392 .zip(text_unit_size.vertical)
1393 .zip(thumb_size.vertical)
1394 .map(
1395 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1396 hitbox: cx.insert_hitbox(track_bounds, false),
1397 visible_range,
1398 text_unit_size,
1399 visible: show_scrollbars,
1400 thumb_size,
1401 axis: Axis::Vertical,
1402 },
1403 );
1404
1405 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1406 }
1407
1408 #[allow(clippy::too_many_arguments)]
1409 fn prepaint_crease_toggles(
1410 &self,
1411 crease_toggles: &mut [Option<AnyElement>],
1412 line_height: Pixels,
1413 gutter_dimensions: &GutterDimensions,
1414 gutter_settings: crate::editor_settings::Gutter,
1415 scroll_pixel_position: gpui::Point<Pixels>,
1416 gutter_hitbox: &Hitbox,
1417 cx: &mut WindowContext,
1418 ) {
1419 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1420 if let Some(crease_toggle) = crease_toggle {
1421 debug_assert!(gutter_settings.folds);
1422 let available_space = size(
1423 AvailableSpace::MinContent,
1424 AvailableSpace::Definite(line_height * 0.55),
1425 );
1426 let crease_toggle_size = crease_toggle.layout_as_root(available_space, cx);
1427
1428 let position = point(
1429 gutter_dimensions.width - gutter_dimensions.right_padding,
1430 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1431 );
1432 let centering_offset = point(
1433 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1434 (line_height - crease_toggle_size.height) / 2.,
1435 );
1436 let origin = gutter_hitbox.origin + position + centering_offset;
1437 crease_toggle.prepaint_as_root(origin, available_space, cx);
1438 }
1439 }
1440 }
1441
1442 #[allow(clippy::too_many_arguments)]
1443 fn prepaint_crease_trailers(
1444 &self,
1445 trailers: Vec<Option<AnyElement>>,
1446 lines: &[LineWithInvisibles],
1447 line_height: Pixels,
1448 content_origin: gpui::Point<Pixels>,
1449 scroll_pixel_position: gpui::Point<Pixels>,
1450 em_width: Pixels,
1451 cx: &mut WindowContext,
1452 ) -> Vec<Option<CreaseTrailerLayout>> {
1453 trailers
1454 .into_iter()
1455 .enumerate()
1456 .map(|(ix, element)| {
1457 let mut element = element?;
1458 let available_space = size(
1459 AvailableSpace::MinContent,
1460 AvailableSpace::Definite(line_height),
1461 );
1462 let size = element.layout_as_root(available_space, cx);
1463
1464 let line = &lines[ix];
1465 let padding = if line.width == Pixels::ZERO {
1466 Pixels::ZERO
1467 } else {
1468 4. * em_width
1469 };
1470 let position = point(
1471 scroll_pixel_position.x + line.width + padding,
1472 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1473 );
1474 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1475 let origin = content_origin + position + centering_offset;
1476 element.prepaint_as_root(origin, available_space, cx);
1477 Some(CreaseTrailerLayout {
1478 element,
1479 bounds: Bounds::new(origin, size),
1480 })
1481 })
1482 .collect()
1483 }
1484
1485 // Folds contained in a hunk are ignored apart from shrinking visual size
1486 // If a fold contains any hunks then that fold line is marked as modified
1487 fn layout_gutter_git_hunks(
1488 &self,
1489 line_height: Pixels,
1490 gutter_hitbox: &Hitbox,
1491 display_rows: Range<DisplayRow>,
1492 anchor_range: Range<Anchor>,
1493 snapshot: &EditorSnapshot,
1494 cx: &mut WindowContext,
1495 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1496 let buffer_snapshot = &snapshot.buffer_snapshot;
1497 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1498 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1499
1500 let git_gutter_setting = ProjectSettings::get_global(cx)
1501 .git
1502 .git_gutter
1503 .unwrap_or_default();
1504
1505 self.editor.update(cx, |editor, cx| {
1506 let expanded_hunks = &editor.diff_map.hunks;
1507 let expanded_hunks_start_ix = expanded_hunks
1508 .binary_search_by(|hunk| {
1509 hunk.hunk_range
1510 .end
1511 .cmp(&anchor_range.start, &buffer_snapshot)
1512 .then(Ordering::Less)
1513 })
1514 .unwrap_err();
1515 let mut expanded_hunks = expanded_hunks[expanded_hunks_start_ix..].iter().peekable();
1516
1517 let mut display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)> = editor
1518 .diff_map
1519 .snapshot
1520 .diff_hunks_in_range(buffer_start..buffer_end, &buffer_snapshot)
1521 .filter_map(|hunk| {
1522 let display_hunk = diff_hunk_to_display(&hunk, snapshot);
1523
1524 if let DisplayDiffHunk::Unfolded {
1525 multi_buffer_range,
1526 status,
1527 ..
1528 } = &display_hunk
1529 {
1530 let mut is_expanded = false;
1531 while let Some(expanded_hunk) = expanded_hunks.peek() {
1532 match expanded_hunk
1533 .hunk_range
1534 .start
1535 .cmp(&multi_buffer_range.start, &buffer_snapshot)
1536 {
1537 Ordering::Less => {
1538 expanded_hunks.next();
1539 }
1540 Ordering::Equal => {
1541 is_expanded = true;
1542 break;
1543 }
1544 Ordering::Greater => {
1545 break;
1546 }
1547 }
1548 }
1549 match status {
1550 DiffHunkStatus::Added => {}
1551 DiffHunkStatus::Modified => {}
1552 DiffHunkStatus::Removed => {
1553 if is_expanded {
1554 return None;
1555 }
1556 }
1557 }
1558 }
1559
1560 Some(display_hunk)
1561 })
1562 .dedup()
1563 .map(|hunk| (hunk, None))
1564 .collect();
1565
1566 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1567 for (hunk, hitbox) in &mut display_hunks {
1568 if let DisplayDiffHunk::Unfolded { .. } = hunk {
1569 let hunk_bounds = Self::diff_hunk_bounds(
1570 snapshot,
1571 line_height,
1572 gutter_hitbox.bounds,
1573 &hunk,
1574 );
1575 *hitbox = Some(cx.insert_hitbox(hunk_bounds, true));
1576 };
1577 }
1578 }
1579
1580 display_hunks
1581 })
1582 }
1583
1584 #[allow(clippy::too_many_arguments)]
1585 fn layout_inline_blame(
1586 &self,
1587 display_row: DisplayRow,
1588 display_snapshot: &DisplaySnapshot,
1589 line_layout: &LineWithInvisibles,
1590 crease_trailer: Option<&CreaseTrailerLayout>,
1591 em_width: Pixels,
1592 content_origin: gpui::Point<Pixels>,
1593 scroll_pixel_position: gpui::Point<Pixels>,
1594 line_height: Pixels,
1595 cx: &mut WindowContext,
1596 ) -> Option<AnyElement> {
1597 if !self
1598 .editor
1599 .update(cx, |editor, cx| editor.render_git_blame_inline(cx))
1600 {
1601 return None;
1602 }
1603
1604 let workspace = self
1605 .editor
1606 .read(cx)
1607 .workspace
1608 .as_ref()
1609 .map(|(w, _)| w.clone());
1610
1611 let display_point = DisplayPoint::new(display_row, 0);
1612 let buffer_row = MultiBufferRow(display_point.to_point(display_snapshot).row);
1613
1614 let blame = self.editor.read(cx).blame.clone()?;
1615 let blame_entry = blame
1616 .update(cx, |blame, cx| {
1617 blame.blame_for_rows([Some(buffer_row)], cx).next()
1618 })
1619 .flatten()?;
1620
1621 let mut element =
1622 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1623
1624 let start_y = content_origin.y
1625 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1626
1627 let start_x = {
1628 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1629
1630 let line_end = if let Some(crease_trailer) = crease_trailer {
1631 crease_trailer.bounds.right()
1632 } else {
1633 content_origin.x - scroll_pixel_position.x + line_layout.width
1634 };
1635 let padded_line_end = line_end + em_width * INLINE_BLAME_PADDING_EM_WIDTHS;
1636
1637 let min_column_in_pixels = ProjectSettings::get_global(cx)
1638 .git
1639 .inline_blame
1640 .and_then(|settings| settings.min_column)
1641 .map(|col| self.column_pixels(col as usize, cx))
1642 .unwrap_or(px(0.));
1643 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1644
1645 cmp::max(padded_line_end, min_start)
1646 };
1647
1648 let absolute_offset = point(start_x, start_y);
1649 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), cx);
1650
1651 Some(element)
1652 }
1653
1654 #[allow(clippy::too_many_arguments)]
1655 fn layout_blame_entries(
1656 &self,
1657 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1658 em_width: Pixels,
1659 scroll_position: gpui::Point<f32>,
1660 line_height: Pixels,
1661 gutter_hitbox: &Hitbox,
1662 max_width: Option<Pixels>,
1663 cx: &mut WindowContext,
1664 ) -> Option<Vec<AnyElement>> {
1665 if !self
1666 .editor
1667 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1668 {
1669 return None;
1670 }
1671
1672 let blame = self.editor.read(cx).blame.clone()?;
1673 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1674 blame.blame_for_rows(buffer_rows, cx).collect()
1675 });
1676
1677 let width = if let Some(max_width) = max_width {
1678 AvailableSpace::Definite(max_width)
1679 } else {
1680 AvailableSpace::MaxContent
1681 };
1682 let scroll_top = scroll_position.y * line_height;
1683 let start_x = em_width;
1684
1685 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1686
1687 let shaped_lines = blamed_rows
1688 .into_iter()
1689 .enumerate()
1690 .flat_map(|(ix, blame_entry)| {
1691 if let Some(blame_entry) = blame_entry {
1692 let mut element = render_blame_entry(
1693 ix,
1694 &blame,
1695 blame_entry,
1696 &self.style,
1697 &mut last_used_color,
1698 self.editor.clone(),
1699 cx,
1700 );
1701
1702 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1703 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1704
1705 element.prepaint_as_root(
1706 absolute_offset,
1707 size(width, AvailableSpace::MinContent),
1708 cx,
1709 );
1710
1711 Some(element)
1712 } else {
1713 None
1714 }
1715 })
1716 .collect();
1717
1718 Some(shaped_lines)
1719 }
1720
1721 #[allow(clippy::too_many_arguments)]
1722 fn layout_indent_guides(
1723 &self,
1724 content_origin: gpui::Point<Pixels>,
1725 text_origin: gpui::Point<Pixels>,
1726 visible_buffer_range: Range<MultiBufferRow>,
1727 scroll_pixel_position: gpui::Point<Pixels>,
1728 line_height: Pixels,
1729 snapshot: &DisplaySnapshot,
1730 cx: &mut WindowContext,
1731 ) -> Option<Vec<IndentGuideLayout>> {
1732 let indent_guides = self.editor.update(cx, |editor, cx| {
1733 editor.indent_guides(visible_buffer_range, snapshot, cx)
1734 })?;
1735
1736 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1737 editor
1738 .find_active_indent_guide_indices(&indent_guides, snapshot, cx)
1739 .unwrap_or_default()
1740 });
1741
1742 Some(
1743 indent_guides
1744 .into_iter()
1745 .enumerate()
1746 .filter_map(|(i, indent_guide)| {
1747 let single_indent_width =
1748 self.column_pixels(indent_guide.tab_size as usize, cx);
1749 let total_width = single_indent_width * indent_guide.depth as f32;
1750 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1751 if start_x >= text_origin.x {
1752 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1753 indent_guide.multibuffer_row_range.clone(),
1754 line_height,
1755 snapshot,
1756 );
1757
1758 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1759
1760 Some(IndentGuideLayout {
1761 origin: point(start_x, start_y),
1762 length,
1763 single_indent_width,
1764 depth: indent_guide.depth,
1765 active: active_indent_guide_indices.contains(&i),
1766 settings: indent_guide.settings,
1767 })
1768 } else {
1769 None
1770 }
1771 })
1772 .collect(),
1773 )
1774 }
1775
1776 fn calculate_indent_guide_bounds(
1777 row_range: Range<MultiBufferRow>,
1778 line_height: Pixels,
1779 snapshot: &DisplaySnapshot,
1780 ) -> (gpui::Pixels, gpui::Pixels) {
1781 let start_point = Point::new(row_range.start.0, 0);
1782 let end_point = Point::new(row_range.end.0, 0);
1783
1784 let row_range = start_point.to_display_point(snapshot).row()
1785 ..end_point.to_display_point(snapshot).row();
1786
1787 let mut prev_line = start_point;
1788 prev_line.row = prev_line.row.saturating_sub(1);
1789 let prev_line = prev_line.to_display_point(snapshot).row();
1790
1791 let mut cons_line = end_point;
1792 cons_line.row += 1;
1793 let cons_line = cons_line.to_display_point(snapshot).row();
1794
1795 let mut offset_y = row_range.start.0 as f32 * line_height;
1796 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1797
1798 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1799 if row_range.end == cons_line {
1800 length += line_height;
1801 }
1802
1803 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1804 // we want to extend the indent guide to the start of the block.
1805 let mut block_height = 0;
1806 let mut block_offset = 0;
1807 let mut found_excerpt_header = false;
1808 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1809 if matches!(block, Block::ExcerptBoundary { .. }) {
1810 found_excerpt_header = true;
1811 break;
1812 }
1813 block_offset += block.height();
1814 block_height += block.height();
1815 }
1816 if !found_excerpt_header {
1817 offset_y -= block_offset as f32 * line_height;
1818 length += block_height as f32 * line_height;
1819 }
1820
1821 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1822 // we want to ensure that the indent guide stops before the excerpt header.
1823 let mut block_height = 0;
1824 let mut found_excerpt_header = false;
1825 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1826 if matches!(block, Block::ExcerptBoundary { .. }) {
1827 found_excerpt_header = true;
1828 }
1829 block_height += block.height();
1830 }
1831 if found_excerpt_header {
1832 length -= block_height as f32 * line_height;
1833 }
1834
1835 (offset_y, length)
1836 }
1837
1838 #[allow(clippy::too_many_arguments)]
1839 fn layout_run_indicators(
1840 &self,
1841 line_height: Pixels,
1842 range: Range<DisplayRow>,
1843 scroll_pixel_position: gpui::Point<Pixels>,
1844 gutter_dimensions: &GutterDimensions,
1845 gutter_hitbox: &Hitbox,
1846 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1847 snapshot: &EditorSnapshot,
1848 cx: &mut WindowContext,
1849 ) -> Vec<AnyElement> {
1850 self.editor.update(cx, |editor, cx| {
1851 let active_task_indicator_row =
1852 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1853 deployed_from_indicator,
1854 actions,
1855 ..
1856 })) = editor.context_menu.borrow().as_ref()
1857 {
1858 actions
1859 .tasks
1860 .as_ref()
1861 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1862 .or(*deployed_from_indicator)
1863 } else {
1864 None
1865 };
1866
1867 let offset_range_start = snapshot
1868 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1869 .to_offset(&snapshot.buffer_snapshot);
1870 let offset_range_end = snapshot
1871 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1872 .to_offset(&snapshot.buffer_snapshot);
1873
1874 editor
1875 .tasks
1876 .iter()
1877 .filter_map(|(_, tasks)| {
1878 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1879 return None;
1880 }
1881 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1882 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1883 let buffer_folded = snapshot
1884 .buffer_snapshot
1885 .buffer_line_for_row(multibuffer_row)
1886 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1887 .map(|buffer_id| editor.buffer_folded(buffer_id, cx))
1888 .unwrap_or(false);
1889 if buffer_folded {
1890 return None;
1891 }
1892
1893 if snapshot.is_line_folded(multibuffer_row) {
1894 // Skip folded indicators, unless it's the starting line of a fold.
1895 if multibuffer_row
1896 .0
1897 .checked_sub(1)
1898 .map_or(false, |previous_row| {
1899 snapshot.is_line_folded(MultiBufferRow(previous_row))
1900 })
1901 {
1902 return None;
1903 }
1904 }
1905 let display_row = multibuffer_point.to_display_point(snapshot).row();
1906 let button = editor.render_run_indicator(
1907 &self.style,
1908 Some(display_row) == active_task_indicator_row,
1909 display_row,
1910 cx,
1911 );
1912
1913 let button = prepaint_gutter_button(
1914 button,
1915 display_row,
1916 line_height,
1917 gutter_dimensions,
1918 scroll_pixel_position,
1919 gutter_hitbox,
1920 rows_with_hunk_bounds,
1921 cx,
1922 );
1923 Some(button)
1924 })
1925 .collect_vec()
1926 })
1927 }
1928
1929 #[allow(clippy::too_many_arguments)]
1930 fn layout_code_actions_indicator(
1931 &self,
1932 line_height: Pixels,
1933 newest_selection_head: DisplayPoint,
1934 scroll_pixel_position: gpui::Point<Pixels>,
1935 gutter_dimensions: &GutterDimensions,
1936 gutter_hitbox: &Hitbox,
1937 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1938 cx: &mut WindowContext,
1939 ) -> Option<AnyElement> {
1940 let mut active = false;
1941 let mut button = None;
1942 let row = newest_selection_head.row();
1943 self.editor.update(cx, |editor, cx| {
1944 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1945 deployed_from_indicator,
1946 ..
1947 })) = editor.context_menu.borrow().as_ref()
1948 {
1949 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1950 };
1951 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1952 });
1953
1954 let button = prepaint_gutter_button(
1955 button?,
1956 row,
1957 line_height,
1958 gutter_dimensions,
1959 scroll_pixel_position,
1960 gutter_hitbox,
1961 rows_with_hunk_bounds,
1962 cx,
1963 );
1964
1965 Some(button)
1966 }
1967
1968 fn get_participant_color(
1969 participant_index: Option<ParticipantIndex>,
1970 cx: &WindowContext,
1971 ) -> PlayerColor {
1972 if let Some(index) = participant_index {
1973 cx.theme().players().color_for_participant(index.0)
1974 } else {
1975 cx.theme().players().absent()
1976 }
1977 }
1978
1979 fn calculate_relative_line_numbers(
1980 &self,
1981 snapshot: &EditorSnapshot,
1982 rows: &Range<DisplayRow>,
1983 relative_to: Option<DisplayRow>,
1984 ) -> HashMap<DisplayRow, DisplayRowDelta> {
1985 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
1986 let Some(relative_to) = relative_to else {
1987 return relative_rows;
1988 };
1989
1990 let start = rows.start.min(relative_to);
1991 let end = rows.end.max(relative_to);
1992
1993 let buffer_rows = snapshot
1994 .buffer_rows(start)
1995 .take(1 + end.minus(start) as usize)
1996 .collect::<Vec<_>>();
1997
1998 let head_idx = relative_to.minus(start);
1999 let mut delta = 1;
2000 let mut i = head_idx + 1;
2001 while i < buffer_rows.len() as u32 {
2002 if buffer_rows[i as usize].is_some() {
2003 if rows.contains(&DisplayRow(i + start.0)) {
2004 relative_rows.insert(DisplayRow(i + start.0), delta);
2005 }
2006 delta += 1;
2007 }
2008 i += 1;
2009 }
2010 delta = 1;
2011 i = head_idx.min(buffer_rows.len() as u32 - 1);
2012 while i > 0 && buffer_rows[i as usize].is_none() {
2013 i -= 1;
2014 }
2015
2016 while i > 0 {
2017 i -= 1;
2018 if buffer_rows[i as usize].is_some() {
2019 if rows.contains(&DisplayRow(i + start.0)) {
2020 relative_rows.insert(DisplayRow(i + start.0), delta);
2021 }
2022 delta += 1;
2023 }
2024 }
2025
2026 relative_rows
2027 }
2028
2029 #[allow(clippy::too_many_arguments)]
2030 fn layout_line_numbers(
2031 &self,
2032 gutter_hitbox: Option<&Hitbox>,
2033 gutter_dimensions: GutterDimensions,
2034 line_height: Pixels,
2035 scroll_position: gpui::Point<f32>,
2036 rows: Range<DisplayRow>,
2037 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
2038 newest_selection_head: Option<DisplayPoint>,
2039 snapshot: &EditorSnapshot,
2040 cx: &mut WindowContext,
2041 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2042 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2043 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2044 });
2045 if !include_line_numbers {
2046 return Arc::default();
2047 }
2048
2049 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2050 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2051 let newest = editor.selections.newest::<Point>(cx);
2052 SelectionLayout::new(
2053 newest,
2054 editor.selections.line_mode,
2055 editor.cursor_shape,
2056 &snapshot.display_snapshot,
2057 true,
2058 true,
2059 None,
2060 )
2061 .head
2062 });
2063 let is_relative = editor.should_use_relative_line_numbers(cx);
2064 (newest_selection_head, is_relative)
2065 });
2066
2067 let relative_to = if is_relative {
2068 Some(newest_selection_head.row())
2069 } else {
2070 None
2071 };
2072 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2073 let mut line_number = String::new();
2074 let line_numbers = buffer_rows
2075 .into_iter()
2076 .enumerate()
2077 .flat_map(|(ix, buffer_row)| {
2078 let buffer_row = buffer_row?;
2079 line_number.clear();
2080 let display_row = DisplayRow(rows.start.0 + ix as u32);
2081 let non_relative_number = buffer_row.0 + 1;
2082 let number = relative_rows
2083 .get(&display_row)
2084 .unwrap_or(&non_relative_number);
2085 write!(&mut line_number, "{number}").unwrap();
2086
2087 let color = cx.theme().colors().editor_line_number;
2088 let shaped_line = self
2089 .shape_line_number(SharedString::from(&line_number), color, cx)
2090 .log_err()?;
2091 let scroll_top = scroll_position.y * line_height;
2092 let line_origin = gutter_hitbox.map(|hitbox| {
2093 hitbox.origin
2094 + point(
2095 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2096 ix as f32 * line_height - (scroll_top % line_height),
2097 )
2098 });
2099
2100 #[cfg(not(test))]
2101 let hitbox = line_origin.map(|line_origin| {
2102 cx.insert_hitbox(
2103 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2104 false,
2105 )
2106 });
2107 #[cfg(test)]
2108 let hitbox = {
2109 let _ = line_origin;
2110 None
2111 };
2112
2113 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2114 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2115 let line_number = LineNumberLayout {
2116 shaped_line,
2117 hitbox,
2118 display_row,
2119 };
2120 Some((multi_buffer_row, line_number))
2121 })
2122 .collect();
2123 Arc::new(line_numbers)
2124 }
2125
2126 fn layout_crease_toggles(
2127 &self,
2128 rows: Range<DisplayRow>,
2129 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
2130 active_rows: &BTreeMap<DisplayRow, bool>,
2131 snapshot: &EditorSnapshot,
2132 cx: &mut WindowContext,
2133 ) -> Vec<Option<AnyElement>> {
2134 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2135 && snapshot.mode == EditorMode::Full
2136 && self.editor.read(cx).is_singleton(cx);
2137 if include_fold_statuses {
2138 buffer_rows
2139 .into_iter()
2140 .enumerate()
2141 .map(|(ix, row)| {
2142 if let Some(multibuffer_row) = row {
2143 let display_row = DisplayRow(rows.start.0 + ix as u32);
2144 let active = active_rows.contains_key(&display_row);
2145 snapshot.render_crease_toggle(
2146 multibuffer_row,
2147 active,
2148 self.editor.clone(),
2149 cx,
2150 )
2151 } else {
2152 None
2153 }
2154 })
2155 .collect()
2156 } else {
2157 Vec::new()
2158 }
2159 }
2160
2161 fn layout_crease_trailers(
2162 &self,
2163 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
2164 snapshot: &EditorSnapshot,
2165 cx: &mut WindowContext,
2166 ) -> Vec<Option<AnyElement>> {
2167 buffer_rows
2168 .into_iter()
2169 .map(|row| {
2170 if let Some(multibuffer_row) = row {
2171 snapshot.render_crease_trailer(multibuffer_row, cx)
2172 } else {
2173 None
2174 }
2175 })
2176 .collect()
2177 }
2178
2179 fn layout_lines(
2180 rows: Range<DisplayRow>,
2181 snapshot: &EditorSnapshot,
2182 style: &EditorStyle,
2183 editor_width: Pixels,
2184 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2185 cx: &mut WindowContext,
2186 ) -> Vec<LineWithInvisibles> {
2187 if rows.start >= rows.end {
2188 return Vec::new();
2189 }
2190
2191 // Show the placeholder when the editor is empty
2192 if snapshot.is_empty() {
2193 let font_size = style.text.font_size.to_pixels(cx.rem_size());
2194 let placeholder_color = cx.theme().colors().text_placeholder;
2195 let placeholder_text = snapshot.placeholder_text();
2196
2197 let placeholder_lines = placeholder_text
2198 .as_ref()
2199 .map_or("", AsRef::as_ref)
2200 .split('\n')
2201 .skip(rows.start.0 as usize)
2202 .chain(iter::repeat(""))
2203 .take(rows.len());
2204 placeholder_lines
2205 .filter_map(move |line| {
2206 let run = TextRun {
2207 len: line.len(),
2208 font: style.text.font(),
2209 color: placeholder_color,
2210 background_color: None,
2211 underline: Default::default(),
2212 strikethrough: None,
2213 };
2214 cx.text_system()
2215 .shape_line(line.to_string().into(), font_size, &[run])
2216 .log_err()
2217 })
2218 .map(|line| LineWithInvisibles {
2219 width: line.width,
2220 len: line.len,
2221 fragments: smallvec![LineFragment::Text(line)],
2222 invisibles: Vec::new(),
2223 font_size,
2224 })
2225 .collect()
2226 } else {
2227 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2228 LineWithInvisibles::from_chunks(
2229 chunks,
2230 &style,
2231 MAX_LINE_LEN,
2232 rows.len(),
2233 snapshot.mode,
2234 editor_width,
2235 is_row_soft_wrapped,
2236 cx,
2237 )
2238 }
2239 }
2240
2241 fn prepaint_lines(
2242 &self,
2243 start_row: DisplayRow,
2244 line_layouts: &mut [LineWithInvisibles],
2245 line_height: Pixels,
2246 scroll_pixel_position: gpui::Point<Pixels>,
2247 content_origin: gpui::Point<Pixels>,
2248 cx: &mut WindowContext,
2249 ) -> SmallVec<[AnyElement; 1]> {
2250 let mut line_elements = SmallVec::new();
2251 for (ix, line) in line_layouts.iter_mut().enumerate() {
2252 let row = start_row + DisplayRow(ix as u32);
2253 line.prepaint(
2254 line_height,
2255 scroll_pixel_position,
2256 row,
2257 content_origin,
2258 &mut line_elements,
2259 cx,
2260 );
2261 }
2262 line_elements
2263 }
2264
2265 #[allow(clippy::too_many_arguments)]
2266 fn render_block(
2267 &self,
2268 block: &Block,
2269 available_width: AvailableSpace,
2270 block_id: BlockId,
2271 block_row_start: DisplayRow,
2272 snapshot: &EditorSnapshot,
2273 text_x: Pixels,
2274 rows: &Range<DisplayRow>,
2275 line_layouts: &[LineWithInvisibles],
2276 gutter_dimensions: &GutterDimensions,
2277 line_height: Pixels,
2278 em_width: Pixels,
2279 text_hitbox: &Hitbox,
2280 editor_width: Pixels,
2281 scroll_width: &mut Pixels,
2282 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2283 selections: &[Selection<Point>],
2284 selected_buffer_ids: &Vec<BufferId>,
2285 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2286 sticky_header_excerpt_id: Option<ExcerptId>,
2287 cx: &mut WindowContext,
2288 ) -> (AnyElement, Size<Pixels>) {
2289 let mut element = match block {
2290 Block::Custom(block) => {
2291 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2292 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2293 let align_to = block_start.to_display_point(snapshot);
2294 let anchor_x = text_x
2295 + if rows.contains(&align_to.row()) {
2296 line_layouts[align_to.row().minus(rows.start) as usize]
2297 .x_for_index(align_to.column() as usize)
2298 } else {
2299 layout_line(
2300 align_to.row(),
2301 snapshot,
2302 &self.style,
2303 editor_width,
2304 is_row_soft_wrapped,
2305 cx,
2306 )
2307 .x_for_index(align_to.column() as usize)
2308 };
2309
2310 let selected = selections
2311 .binary_search_by(|selection| {
2312 if selection.end <= block_start {
2313 Ordering::Less
2314 } else if selection.start >= block_end {
2315 Ordering::Greater
2316 } else {
2317 Ordering::Equal
2318 }
2319 })
2320 .is_ok();
2321
2322 div()
2323 .size_full()
2324 .child(block.render(&mut BlockContext {
2325 context: cx,
2326 anchor_x,
2327 gutter_dimensions,
2328 line_height,
2329 em_width,
2330 block_id,
2331 selected,
2332 max_width: text_hitbox.size.width.max(*scroll_width),
2333 editor_style: &self.style,
2334 }))
2335 .into_any()
2336 }
2337
2338 Block::FoldedBuffer {
2339 first_excerpt,
2340 prev_excerpt,
2341 show_excerpt_controls,
2342 height,
2343 } => {
2344 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2345 let icon_offset = gutter_dimensions.width
2346 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2347 let mut result = v_flex().id(block_id).w_full();
2348
2349 if let Some(prev_excerpt) = prev_excerpt {
2350 if *show_excerpt_controls {
2351 result = result.child(
2352 h_flex()
2353 .id("expand_down_hit_area")
2354 .w(icon_offset)
2355 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2356 .flex_none()
2357 .justify_end()
2358 .child(self.render_expand_excerpt_button(
2359 IconName::ArrowDownFromLine,
2360 None,
2361 cx,
2362 ))
2363 .on_click(cx.listener_for(&self.editor, {
2364 let excerpt_id = prev_excerpt.id;
2365 let direction = ExpandExcerptDirection::Down;
2366 move |editor, _, cx| {
2367 editor.expand_excerpt(excerpt_id, direction, cx);
2368 cx.stop_propagation();
2369 }
2370 })),
2371 );
2372 }
2373 }
2374
2375 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2376 result
2377 .child(self.render_buffer_header(first_excerpt, true, selected, jump_data, cx))
2378 .into_any_element()
2379 }
2380
2381 Block::ExcerptBoundary {
2382 prev_excerpt,
2383 next_excerpt,
2384 show_excerpt_controls,
2385 height,
2386 starts_new_buffer,
2387 } => {
2388 let icon_offset = gutter_dimensions.width
2389 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2390 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height();
2391 let color = cx.theme().colors().clone();
2392 let hover_color = color.border_variant.opacity(0.5);
2393 let focus_handle = self.editor.focus_handle(cx).clone();
2394
2395 let mut result = v_flex().id(block_id).w_full();
2396 let expand_area = |id: SharedString| {
2397 h_flex()
2398 .id(id)
2399 .w_full()
2400 .cursor_pointer()
2401 .block_mouse_down()
2402 .on_mouse_move(|_, cx| cx.stop_propagation())
2403 .hover(|style| style.bg(hover_color))
2404 .tooltip({
2405 let focus_handle = focus_handle.clone();
2406 move |cx| {
2407 Tooltip::for_action_in(
2408 "Expand Excerpt",
2409 &ExpandExcerpts { lines: 0 },
2410 &focus_handle,
2411 cx,
2412 )
2413 }
2414 })
2415 };
2416
2417 if let Some(prev_excerpt) = prev_excerpt {
2418 if *show_excerpt_controls {
2419 let group_name = "expand-down";
2420
2421 result = result.child(
2422 expand_area(format!("block-{}-down", block_id).into())
2423 .group(group_name)
2424 .child(
2425 h_flex()
2426 .w(icon_offset)
2427 .h(header_height)
2428 .flex_none()
2429 .justify_end()
2430 .child(self.render_expand_excerpt_button(
2431 IconName::ArrowDownFromLine,
2432 Some(group_name.to_string()),
2433 cx,
2434 )),
2435 )
2436 .on_click(cx.listener_for(&self.editor, {
2437 let excerpt_id = prev_excerpt.id;
2438 let direction = ExpandExcerptDirection::Down;
2439 move |editor, _, cx| {
2440 editor.expand_excerpt(excerpt_id, direction, cx);
2441 cx.stop_propagation();
2442 }
2443 })),
2444 );
2445 }
2446 }
2447
2448 if let Some(next_excerpt) = next_excerpt {
2449 let jump_data =
2450 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2451
2452 if *starts_new_buffer {
2453 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2454 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2455
2456 result = result.child(self.render_buffer_header(
2457 next_excerpt,
2458 false,
2459 selected,
2460 jump_data,
2461 cx,
2462 ));
2463 } else {
2464 result =
2465 result.child(div().h(FILE_HEADER_HEIGHT as f32 * cx.line_height()));
2466 }
2467
2468 if *show_excerpt_controls {
2469 let group_name = "expand-up-first";
2470
2471 result = result.child(
2472 h_flex().group(group_name).child(
2473 expand_area(format!("block-{}-up-first", block_id).into())
2474 .h(header_height)
2475 .child(
2476 h_flex()
2477 .w(icon_offset)
2478 .h(header_height)
2479 .flex_none()
2480 .justify_end()
2481 .child(self.render_expand_excerpt_button(
2482 IconName::ArrowUpFromLine,
2483 Some(group_name.to_string()),
2484 cx,
2485 )),
2486 )
2487 .on_click(cx.listener_for(&self.editor, {
2488 let excerpt_id = next_excerpt.id;
2489 let direction = ExpandExcerptDirection::Up;
2490 move |editor, _, cx| {
2491 editor.expand_excerpt(excerpt_id, direction, cx);
2492 cx.stop_propagation();
2493 }
2494 })),
2495 ),
2496 );
2497 }
2498 } else {
2499 let group_name = "expand-up-subsequent";
2500
2501 if *show_excerpt_controls {
2502 result = result.child(
2503 h_flex()
2504 .relative()
2505 .group(group_name)
2506 .child(
2507 div()
2508 .top(px(0.))
2509 .absolute()
2510 .w_full()
2511 .h_px()
2512 .bg(color.border_variant),
2513 )
2514 .child(
2515 expand_area(format!("block-{}-up", block_id).into())
2516 .h(header_height)
2517 .child(
2518 h_flex()
2519 .w(icon_offset)
2520 .h(header_height)
2521 .flex_none()
2522 .justify_end()
2523 .child(if *show_excerpt_controls {
2524 self.render_expand_excerpt_button(
2525 IconName::ArrowUpFromLine,
2526 Some(group_name.to_string()),
2527 cx,
2528 )
2529 } else {
2530 ButtonLike::new("jump-icon")
2531 .style(ButtonStyle::Transparent)
2532 .child(
2533 svg()
2534 .path(
2535 IconName::ArrowUpRight
2536 .path(),
2537 )
2538 .size(IconSize::XSmall.rems())
2539 .text_color(
2540 color.border_variant,
2541 )
2542 .group_hover(
2543 group_name,
2544 |style| {
2545 style.text_color(
2546 color.border,
2547 )
2548 },
2549 ),
2550 )
2551 }),
2552 )
2553 .on_click(cx.listener_for(&self.editor, {
2554 let excerpt_id = next_excerpt.id;
2555 let direction = ExpandExcerptDirection::Up;
2556 move |editor, _, cx| {
2557 editor
2558 .expand_excerpt(excerpt_id, direction, cx);
2559 cx.stop_propagation();
2560 }
2561 })),
2562 ),
2563 );
2564 }
2565 };
2566 }
2567
2568 result.into_any()
2569 }
2570 };
2571
2572 // Discover the element's content height, then round up to the nearest multiple of line height.
2573 let preliminary_size =
2574 element.layout_as_root(size(available_width, AvailableSpace::MinContent), cx);
2575 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2576 let final_size = if preliminary_size.height == quantized_height {
2577 preliminary_size
2578 } else {
2579 element.layout_as_root(size(available_width, quantized_height.into()), cx)
2580 };
2581
2582 if let BlockId::Custom(custom_block_id) = block_id {
2583 if block.height() > 0 {
2584 let element_height_in_lines =
2585 ((final_size.height / line_height).ceil() as u32).max(1);
2586 if element_height_in_lines != block.height() {
2587 resized_blocks.insert(custom_block_id, element_height_in_lines);
2588 }
2589 }
2590 }
2591
2592 (element, final_size)
2593 }
2594
2595 fn render_buffer_header(
2596 &self,
2597 for_excerpt: &ExcerptInfo,
2598 is_folded: bool,
2599 is_selected: bool,
2600 jump_data: JumpData,
2601 cx: &mut WindowContext,
2602 ) -> Div {
2603 let include_root = self
2604 .editor
2605 .read(cx)
2606 .project
2607 .as_ref()
2608 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2609 .unwrap_or_default();
2610 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2611 let filename = path
2612 .as_ref()
2613 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2614 let parent_path = path
2615 .as_ref()
2616 .and_then(|path| Some(path.parent()?.to_string_lossy().to_string() + "/"));
2617 let focus_handle = self.editor.focus_handle(cx);
2618 let colors = cx.theme().colors();
2619
2620 div()
2621 .px_2()
2622 .pt_2()
2623 .w_full()
2624 .h(FILE_HEADER_HEIGHT as f32 * cx.line_height())
2625 .child(
2626 h_flex()
2627 .size_full()
2628 .gap_2()
2629 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2630 .pl_0p5()
2631 .pr_5()
2632 .rounded_md()
2633 .shadow_md()
2634 .border_1()
2635 .map(|div| {
2636 let border_color = if is_selected && is_folded {
2637 colors.border_focused
2638 } else {
2639 colors.border
2640 };
2641 div.border_color(border_color)
2642 })
2643 .bg(colors.editor_subheader_background)
2644 .hover(|style| style.bg(colors.element_hover))
2645 .map(|header| {
2646 let editor = self.editor.clone();
2647 let buffer_id = for_excerpt.buffer_id;
2648 let toggle_chevron_icon =
2649 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2650 header.child(
2651 div()
2652 .hover(|style| style.bg(colors.element_selected))
2653 .rounded_sm()
2654 .child(
2655 ButtonLike::new("toggle-buffer-fold")
2656 .style(ui::ButtonStyle::Transparent)
2657 .size(ButtonSize::Large)
2658 .width(px(30.).into())
2659 .children(toggle_chevron_icon)
2660 .tooltip({
2661 let focus_handle = focus_handle.clone();
2662 move |cx| {
2663 Tooltip::for_action_in(
2664 "Toggle Excerpt Fold",
2665 &ToggleFold,
2666 &focus_handle,
2667 cx,
2668 )
2669 }
2670 })
2671 .on_click(move |_, cx| {
2672 if is_folded {
2673 editor.update(cx, |editor, cx| {
2674 editor.unfold_buffer(buffer_id, cx);
2675 });
2676 } else {
2677 editor.update(cx, |editor, cx| {
2678 editor.fold_buffer(buffer_id, cx);
2679 });
2680 }
2681 }),
2682 ),
2683 )
2684 })
2685 .child(
2686 h_flex()
2687 .cursor_pointer()
2688 .id("path header block")
2689 .size_full()
2690 .justify_between()
2691 .child(
2692 h_flex()
2693 .gap_2()
2694 .child(
2695 filename
2696 .map(SharedString::from)
2697 .unwrap_or_else(|| "untitled".into()),
2698 )
2699 .when_some(parent_path, |then, path| {
2700 then.child(div().child(path).text_color(colors.text_muted))
2701 }),
2702 )
2703 .when(is_selected, |el| {
2704 el.child(
2705 h_flex()
2706 .id("jump-to-file-button")
2707 .gap_2p5()
2708 .child(Label::new("Jump To File"))
2709 .children(
2710 KeyBinding::for_action_in(
2711 &OpenExcerpts,
2712 &focus_handle,
2713 cx,
2714 )
2715 .map(|binding| binding.into_any_element()),
2716 ),
2717 )
2718 })
2719 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
2720 .on_click(cx.listener_for(&self.editor, {
2721 move |editor, e: &ClickEvent, cx| {
2722 editor.open_excerpts_common(
2723 Some(jump_data.clone()),
2724 e.down.modifiers.secondary(),
2725 cx,
2726 );
2727 }
2728 })),
2729 ),
2730 )
2731 }
2732
2733 fn render_expand_excerpt_button(
2734 &self,
2735 icon: IconName,
2736 group_name: impl Into<Option<String>>,
2737 cx: &mut WindowContext,
2738 ) -> ButtonLike {
2739 let group_name = group_name.into();
2740 ButtonLike::new("expand-icon")
2741 .style(ButtonStyle::Transparent)
2742 .child(
2743 svg()
2744 .path(icon.path())
2745 .size(IconSize::XSmall.rems())
2746 .text_color(cx.theme().colors().editor_line_number)
2747 .when_some(group_name, |svg, group_name| {
2748 svg.group_hover(group_name, |style| {
2749 style.text_color(cx.theme().colors().editor_active_line_number)
2750 })
2751 }),
2752 )
2753 }
2754
2755 #[allow(clippy::too_many_arguments)]
2756 fn render_blocks(
2757 &self,
2758 rows: Range<DisplayRow>,
2759 snapshot: &EditorSnapshot,
2760 hitbox: &Hitbox,
2761 text_hitbox: &Hitbox,
2762 editor_width: Pixels,
2763 scroll_width: &mut Pixels,
2764 gutter_dimensions: &GutterDimensions,
2765 em_width: Pixels,
2766 text_x: Pixels,
2767 line_height: Pixels,
2768 line_layouts: &[LineWithInvisibles],
2769 selections: &[Selection<Point>],
2770 selected_buffer_ids: &Vec<BufferId>,
2771 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2772 sticky_header_excerpt_id: Option<ExcerptId>,
2773 cx: &mut WindowContext,
2774 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2775 let (fixed_blocks, non_fixed_blocks) = snapshot
2776 .blocks_in_range(rows.clone())
2777 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2778
2779 let mut focused_block = self
2780 .editor
2781 .update(cx, |editor, _| editor.take_focused_block());
2782 let mut fixed_block_max_width = Pixels::ZERO;
2783 let mut blocks = Vec::new();
2784 let mut resized_blocks = HashMap::default();
2785
2786 for (row, block) in fixed_blocks {
2787 let block_id = block.id();
2788
2789 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2790 focused_block = None;
2791 }
2792
2793 let (element, element_size) = self.render_block(
2794 block,
2795 AvailableSpace::MinContent,
2796 block_id,
2797 row,
2798 snapshot,
2799 text_x,
2800 &rows,
2801 line_layouts,
2802 gutter_dimensions,
2803 line_height,
2804 em_width,
2805 text_hitbox,
2806 editor_width,
2807 scroll_width,
2808 &mut resized_blocks,
2809 selections,
2810 selected_buffer_ids,
2811 is_row_soft_wrapped,
2812 sticky_header_excerpt_id,
2813 cx,
2814 );
2815 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2816 blocks.push(BlockLayout {
2817 id: block_id,
2818 row: Some(row),
2819 element,
2820 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2821 style: BlockStyle::Fixed,
2822 });
2823 }
2824
2825 for (row, block) in non_fixed_blocks {
2826 let style = block.style();
2827 let width = match style {
2828 BlockStyle::Sticky => hitbox.size.width,
2829 BlockStyle::Flex => hitbox
2830 .size
2831 .width
2832 .max(fixed_block_max_width)
2833 .max(gutter_dimensions.width + *scroll_width),
2834 BlockStyle::Fixed => unreachable!(),
2835 };
2836 let block_id = block.id();
2837
2838 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2839 focused_block = None;
2840 }
2841
2842 let (element, element_size) = self.render_block(
2843 block,
2844 width.into(),
2845 block_id,
2846 row,
2847 snapshot,
2848 text_x,
2849 &rows,
2850 line_layouts,
2851 gutter_dimensions,
2852 line_height,
2853 em_width,
2854 text_hitbox,
2855 editor_width,
2856 scroll_width,
2857 &mut resized_blocks,
2858 selections,
2859 selected_buffer_ids,
2860 is_row_soft_wrapped,
2861 sticky_header_excerpt_id,
2862 cx,
2863 );
2864
2865 blocks.push(BlockLayout {
2866 id: block_id,
2867 row: Some(row),
2868 element,
2869 available_space: size(width.into(), element_size.height.into()),
2870 style,
2871 });
2872 }
2873
2874 if let Some(focused_block) = focused_block {
2875 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2876 if focus_handle.is_focused(cx) {
2877 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2878 let style = block.style();
2879 let width = match style {
2880 BlockStyle::Fixed => AvailableSpace::MinContent,
2881 BlockStyle::Flex => AvailableSpace::Definite(
2882 hitbox
2883 .size
2884 .width
2885 .max(fixed_block_max_width)
2886 .max(gutter_dimensions.width + *scroll_width),
2887 ),
2888 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2889 };
2890
2891 let (element, element_size) = self.render_block(
2892 &block,
2893 width,
2894 focused_block.id,
2895 rows.end,
2896 snapshot,
2897 text_x,
2898 &rows,
2899 line_layouts,
2900 gutter_dimensions,
2901 line_height,
2902 em_width,
2903 text_hitbox,
2904 editor_width,
2905 scroll_width,
2906 &mut resized_blocks,
2907 selections,
2908 selected_buffer_ids,
2909 is_row_soft_wrapped,
2910 sticky_header_excerpt_id,
2911 cx,
2912 );
2913
2914 blocks.push(BlockLayout {
2915 id: block.id(),
2916 row: None,
2917 element,
2918 available_space: size(width, element_size.height.into()),
2919 style,
2920 });
2921 }
2922 }
2923 }
2924 }
2925
2926 if resized_blocks.is_empty() {
2927 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2928 Ok(blocks)
2929 } else {
2930 Err(resized_blocks)
2931 }
2932 }
2933
2934 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2935 /// a restart of rendering for the editor based on the new sizes.
2936 fn layout_blocks(
2937 &self,
2938 blocks: &mut Vec<BlockLayout>,
2939 block_starts: &mut HashSet<DisplayRow>,
2940 hitbox: &Hitbox,
2941 line_height: Pixels,
2942 scroll_pixel_position: gpui::Point<Pixels>,
2943 cx: &mut WindowContext,
2944 ) {
2945 for block in blocks {
2946 let mut origin = if let Some(row) = block.row {
2947 block_starts.insert(row);
2948 hitbox.origin
2949 + point(
2950 Pixels::ZERO,
2951 row.as_f32() * line_height - scroll_pixel_position.y,
2952 )
2953 } else {
2954 // Position the block outside the visible area
2955 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2956 };
2957
2958 if !matches!(block.style, BlockStyle::Sticky) {
2959 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2960 }
2961
2962 let focus_handle = block
2963 .element
2964 .prepaint_as_root(origin, block.available_space, cx);
2965
2966 if let Some(focus_handle) = focus_handle {
2967 self.editor.update(cx, |editor, _cx| {
2968 editor.set_focused_block(FocusedBlock {
2969 id: block.id,
2970 focus_handle: focus_handle.downgrade(),
2971 });
2972 });
2973 }
2974 }
2975 }
2976
2977 #[allow(clippy::too_many_arguments)]
2978 fn layout_sticky_buffer_header(
2979 &self,
2980 StickyHeaderExcerpt {
2981 excerpt,
2982 next_excerpt_controls_present,
2983 next_buffer_row,
2984 }: StickyHeaderExcerpt<'_>,
2985 scroll_position: f32,
2986 line_height: Pixels,
2987 snapshot: &EditorSnapshot,
2988 hitbox: &Hitbox,
2989 selected_buffer_ids: &Vec<BufferId>,
2990 cx: &mut WindowContext,
2991 ) -> AnyElement {
2992 let jump_data = header_jump_data(
2993 snapshot,
2994 DisplayRow(scroll_position as u32),
2995 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
2996 excerpt,
2997 );
2998
2999 let editor_bg_color = cx.theme().colors().editor_background;
3000
3001 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3002
3003 let mut header = v_flex()
3004 .relative()
3005 .child(
3006 div()
3007 .w(hitbox.bounds.size.width)
3008 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3009 .bg(linear_gradient(
3010 0.,
3011 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3012 linear_color_stop(editor_bg_color, 0.6),
3013 ))
3014 .absolute()
3015 .top_0(),
3016 )
3017 .child(
3018 self.render_buffer_header(excerpt, false, selected, jump_data, cx)
3019 .into_any_element(),
3020 )
3021 .into_any_element();
3022
3023 let mut origin = hitbox.origin;
3024
3025 if let Some(next_buffer_row) = next_buffer_row {
3026 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3027
3028 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3029
3030 if next_excerpt_controls_present {
3031 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3032 }
3033
3034 let offset = scroll_position - max_row as f32;
3035
3036 if offset > 0.0 {
3037 origin.y -= Pixels(offset) * line_height;
3038 }
3039 }
3040
3041 let size = size(
3042 AvailableSpace::Definite(hitbox.size.width),
3043 AvailableSpace::MinContent,
3044 );
3045
3046 header.prepaint_as_root(origin, size, cx);
3047
3048 header
3049 }
3050
3051 #[allow(clippy::too_many_arguments)]
3052 fn layout_context_menu(
3053 &self,
3054 line_height: Pixels,
3055 text_hitbox: &Hitbox,
3056 content_origin: gpui::Point<Pixels>,
3057 start_row: DisplayRow,
3058 scroll_pixel_position: gpui::Point<Pixels>,
3059 line_layouts: &[LineWithInvisibles],
3060 newest_selection_head: DisplayPoint,
3061 gutter_overshoot: Pixels,
3062 cx: &mut WindowContext,
3063 ) {
3064 let Some(context_menu_origin) = self
3065 .editor
3066 .read(cx)
3067 .context_menu_origin(newest_selection_head)
3068 else {
3069 return;
3070 };
3071 let target_position = content_origin
3072 + match context_menu_origin {
3073 crate::ContextMenuOrigin::EditorPoint(display_point) => {
3074 let cursor_row_layout =
3075 &line_layouts[display_point.row().minus(start_row) as usize];
3076 gpui::Point {
3077 x: cmp::max(
3078 px(0.),
3079 cursor_row_layout.x_for_index(display_point.column() as usize)
3080 - scroll_pixel_position.x,
3081 ),
3082 y: cmp::max(
3083 px(0.),
3084 display_point.row().next_row().as_f32() * line_height
3085 - scroll_pixel_position.y,
3086 ),
3087 }
3088 }
3089 crate::ContextMenuOrigin::GutterIndicator(row) => {
3090 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the indicator than just a plain first column of the
3091 // text field.
3092 gpui::Point {
3093 x: -gutter_overshoot,
3094 y: row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3095 }
3096 }
3097 };
3098
3099 let viewport_bounds = Bounds::new(Default::default(), cx.viewport_size()).extend(Edges {
3100 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3101 ..Default::default()
3102 });
3103
3104 // If the context menu's max height won't fit below, then flip it above the line and display
3105 // it in reverse order. If the available space above is less than below.
3106 let unconstrained_max_height = line_height * 12. + POPOVER_Y_PADDING;
3107 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3108 let bottom_y_when_flipped = target_position.y - line_height;
3109 let available_above = bottom_y_when_flipped - text_hitbox.top();
3110 let available_below = text_hitbox.bottom() - target_position.y;
3111 let y_overflows_below = unconstrained_max_height > available_below;
3112 let mut y_is_flipped = y_overflows_below && available_above > available_below;
3113 let mut height = cmp::min(
3114 unconstrained_max_height,
3115 if y_is_flipped {
3116 available_above
3117 } else {
3118 available_below
3119 },
3120 );
3121
3122 // If less than 3 lines fit within the text bounds, instead fit within the window.
3123 if height < min_height {
3124 let available_above = bottom_y_when_flipped;
3125 let available_below = viewport_bounds.bottom() - target_position.y;
3126 if available_below > 3. * line_height {
3127 y_is_flipped = false;
3128 height = min_height;
3129 } else if available_above > 3. * line_height {
3130 y_is_flipped = true;
3131 height = min_height;
3132 } else if available_above > available_below {
3133 y_is_flipped = true;
3134 height = available_above;
3135 } else {
3136 y_is_flipped = false;
3137 height = available_below;
3138 }
3139 }
3140
3141 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3142
3143 // TODO(mgsloan): use viewport_bounds.width as a max width when rendering menu.
3144 let Some(mut menu_element) = self.editor.update(cx, |editor, cx| {
3145 editor.render_context_menu(&self.style, max_height_in_lines, cx)
3146 }) else {
3147 return;
3148 };
3149
3150 let menu_size = menu_element.layout_as_root(AvailableSpace::min_size(), cx);
3151 let menu_position = gpui::Point {
3152 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3153 // overflow. Include space for the scrollbar.
3154 x: target_position
3155 .x
3156 .min((viewport_bounds.right() - menu_size.width).max(Pixels::ZERO)),
3157 y: if y_is_flipped {
3158 bottom_y_when_flipped - menu_size.height
3159 } else {
3160 target_position.y
3161 },
3162 };
3163 cx.defer_draw(menu_element, menu_position, 1);
3164
3165 // Layout documentation aside
3166 let menu_bounds = Bounds::new(menu_position, menu_size);
3167 let max_menu_size = size(menu_size.width, unconstrained_max_height);
3168 let max_menu_bounds = if y_is_flipped {
3169 Bounds::new(
3170 point(
3171 menu_position.x,
3172 bottom_y_when_flipped - max_menu_size.height,
3173 ),
3174 max_menu_size,
3175 )
3176 } else {
3177 Bounds::new(target_position, max_menu_size)
3178 };
3179 self.layout_context_menu_aside(
3180 text_hitbox,
3181 y_is_flipped,
3182 menu_position,
3183 menu_bounds,
3184 max_menu_bounds,
3185 unconstrained_max_height,
3186 line_height,
3187 viewport_bounds,
3188 cx,
3189 );
3190 }
3191
3192 #[allow(clippy::too_many_arguments)]
3193 fn layout_context_menu_aside(
3194 &self,
3195 text_hitbox: &Hitbox,
3196 y_is_flipped: bool,
3197 menu_position: gpui::Point<Pixels>,
3198 menu_bounds: Bounds<Pixels>,
3199 max_menu_bounds: Bounds<Pixels>,
3200 max_height: Pixels,
3201 line_height: Pixels,
3202 viewport_bounds: Bounds<Pixels>,
3203 cx: &mut WindowContext,
3204 ) {
3205 let mut extend_amount = Edges::all(MENU_GAP);
3206 // Extend to include the cursored line to avoid overlapping it.
3207 if y_is_flipped {
3208 extend_amount.bottom = line_height;
3209 } else {
3210 extend_amount.top = line_height;
3211 }
3212 let target_bounds = menu_bounds.extend(extend_amount);
3213 let max_target_bounds = max_menu_bounds.extend(extend_amount);
3214
3215 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3216 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH {
3217 let max_width = cmp::min(
3218 available_within_viewport.right - px(1.),
3219 MENU_ASIDE_MAX_WIDTH,
3220 );
3221 let Some(mut aside) =
3222 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3223 else {
3224 return;
3225 };
3226 aside.layout_as_root(AvailableSpace::min_size(), cx);
3227 let right_position = point(target_bounds.right(), menu_position.y);
3228 Some((aside, right_position))
3229 } else {
3230 let max_size = size(
3231 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3232 // won't be needed here.
3233 cmp::min(
3234 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3235 viewport_bounds.right(),
3236 ),
3237 cmp::min(
3238 max_height,
3239 cmp::max(
3240 available_within_viewport.top,
3241 available_within_viewport.bottom,
3242 ),
3243 ) - POPOVER_Y_PADDING,
3244 );
3245 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3246 return;
3247 };
3248 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), cx);
3249
3250 let top_position = point(menu_position.x, target_bounds.top() - actual_size.height);
3251 let bottom_position = point(menu_position.x, target_bounds.bottom());
3252
3253 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3254 // Prefer to fit on the same side of the line as the menu, then on the other side of
3255 // the line.
3256 if !y_is_flipped && wanted.height < available.bottom {
3257 Some(bottom_position)
3258 } else if !y_is_flipped && wanted.height < available.top {
3259 Some(top_position)
3260 } else if y_is_flipped && wanted.height < available.top {
3261 Some(top_position)
3262 } else if y_is_flipped && wanted.height < available.bottom {
3263 Some(bottom_position)
3264 } else {
3265 None
3266 }
3267 };
3268
3269 // Prefer choosing a direction using max sizes rather than actual size for stability.
3270 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3271 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3272 let aside_position = fit_within(available_within_text, wanted)
3273 // Fallback: fit max size in window.
3274 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3275 // Fallback: fit actual size in window.
3276 .or_else(|| fit_within(available_within_viewport, actual_size));
3277
3278 aside_position.map(|position| (aside, position))
3279 };
3280
3281 // Skip drawing if it doesn't fit anywhere.
3282 if let Some((aside, position)) = positioned_aside {
3283 cx.defer_draw(aside, position, 1);
3284 }
3285 }
3286
3287 fn render_context_menu_aside(
3288 &self,
3289 max_size: Size<Pixels>,
3290 cx: &mut WindowContext,
3291 ) -> Option<AnyElement> {
3292 if max_size.width < px(100.) || max_size.height < px(12.) {
3293 None
3294 } else {
3295 self.editor.update(cx, |editor, cx| {
3296 editor.render_context_menu_aside(&self.style, max_size, cx)
3297 })
3298 }
3299 }
3300
3301 #[allow(clippy::too_many_arguments)]
3302 fn layout_inline_completion_popover(
3303 &self,
3304 text_bounds: &Bounds<Pixels>,
3305 editor_snapshot: &EditorSnapshot,
3306 visible_row_range: Range<DisplayRow>,
3307 scroll_top: f32,
3308 scroll_bottom: f32,
3309 line_layouts: &[LineWithInvisibles],
3310 line_height: Pixels,
3311 scroll_pixel_position: gpui::Point<Pixels>,
3312 editor_width: Pixels,
3313 style: &EditorStyle,
3314 cx: &mut WindowContext,
3315 ) -> Option<AnyElement> {
3316 const PADDING_X: Pixels = Pixels(24.);
3317 const PADDING_Y: Pixels = Pixels(2.);
3318
3319 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3320
3321 match &active_inline_completion.completion {
3322 InlineCompletion::Move(target_position) => {
3323 let tab_kbd = h_flex()
3324 .px_0p5()
3325 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
3326 .text_size(TextSize::XSmall.rems(cx))
3327 .text_color(cx.theme().colors().text.opacity(0.8))
3328 .child("tab");
3329
3330 let icon_container = div().mt(px(2.5)); // For optical alignment
3331
3332 let container_element = h_flex()
3333 .items_center()
3334 .py_0p5()
3335 .px_1()
3336 .gap_1()
3337 .bg(cx.theme().colors().editor_subheader_background)
3338 .border_1()
3339 .border_color(cx.theme().colors().text_accent.opacity(0.2))
3340 .rounded_md()
3341 .shadow_sm();
3342
3343 let target_display_point = target_position.to_display_point(editor_snapshot);
3344 if target_display_point.row().as_f32() < scroll_top {
3345 let mut element = container_element
3346 .child(tab_kbd)
3347 .child(Label::new("Jump to Edit").size(LabelSize::Small))
3348 .child(
3349 icon_container
3350 .child(Icon::new(IconName::ArrowUp).size(IconSize::Small)),
3351 )
3352 .into_any();
3353 let size = element.layout_as_root(AvailableSpace::min_size(), cx);
3354 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3355 element.prepaint_at(text_bounds.origin + offset, cx);
3356 Some(element)
3357 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3358 let mut element = container_element
3359 .child(tab_kbd)
3360 .child(Label::new("Jump to Edit").size(LabelSize::Small))
3361 .child(
3362 icon_container
3363 .child(Icon::new(IconName::ArrowDown).size(IconSize::Small)),
3364 )
3365 .into_any();
3366 let size = element.layout_as_root(AvailableSpace::min_size(), cx);
3367 let offset = point(
3368 (text_bounds.size.width - size.width) / 2.,
3369 text_bounds.size.height - size.height - PADDING_Y,
3370 );
3371 element.prepaint_at(text_bounds.origin + offset, cx);
3372 Some(element)
3373 } else {
3374 let mut element = container_element
3375 .child(tab_kbd)
3376 .child(Label::new("Jump to Edit").size(LabelSize::Small))
3377 .into_any();
3378
3379 let target_line_end = DisplayPoint::new(
3380 target_display_point.row(),
3381 editor_snapshot.line_len(target_display_point.row()),
3382 );
3383 let origin = self.editor.update(cx, |editor, cx| {
3384 editor.display_to_pixel_point(target_line_end, editor_snapshot, cx)
3385 })?;
3386 element.prepaint_as_root(
3387 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3388 AvailableSpace::min_size(),
3389 cx,
3390 );
3391 Some(element)
3392 }
3393 }
3394 InlineCompletion::Edit(edits) => {
3395 if self.editor.read(cx).has_active_completions_menu() {
3396 return None;
3397 }
3398
3399 let edit_start = edits
3400 .first()
3401 .unwrap()
3402 .0
3403 .start
3404 .to_display_point(editor_snapshot);
3405 let edit_end = edits
3406 .last()
3407 .unwrap()
3408 .0
3409 .end
3410 .to_display_point(editor_snapshot);
3411
3412 let is_visible = visible_row_range.contains(&edit_start.row())
3413 || visible_row_range.contains(&edit_end.row());
3414 if !is_visible {
3415 return None;
3416 }
3417
3418 if all_edits_insertions_or_deletions(edits, &editor_snapshot.buffer_snapshot) {
3419 return None;
3420 }
3421
3422 let crate::InlineCompletionText::Edit { text, highlights } =
3423 crate::inline_completion_edit_text(editor_snapshot, edits, false, cx)
3424 else {
3425 return None;
3426 };
3427 let line_count = text.lines().count() + 1;
3428
3429 let longest_row =
3430 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3431 let longest_line_width = if visible_row_range.contains(&longest_row) {
3432 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3433 } else {
3434 layout_line(
3435 longest_row,
3436 editor_snapshot,
3437 style,
3438 editor_width,
3439 |_| false,
3440 cx,
3441 )
3442 .width
3443 };
3444
3445 let styled_text =
3446 gpui::StyledText::new(text.clone()).with_highlights(&style.text, highlights);
3447
3448 let mut element = div()
3449 .bg(cx.theme().colors().editor_background)
3450 .border_1()
3451 .border_color(cx.theme().colors().border)
3452 .rounded_md()
3453 .px_1()
3454 .child(styled_text)
3455 .into_any();
3456
3457 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), cx);
3458 let is_fully_visible =
3459 editor_width >= longest_line_width + PADDING_X + element_bounds.width;
3460
3461 let origin = if is_fully_visible {
3462 text_bounds.origin
3463 + point(
3464 longest_line_width + PADDING_X - scroll_pixel_position.x,
3465 edit_start.row().as_f32() * line_height - scroll_pixel_position.y,
3466 )
3467 } else {
3468 let target_above =
3469 DisplayRow(edit_start.row().0.saturating_sub(line_count as u32));
3470 let row_target = if visible_row_range
3471 .contains(&DisplayRow(target_above.0.saturating_sub(1)))
3472 {
3473 target_above
3474 } else {
3475 DisplayRow(edit_end.row().0 + 1)
3476 };
3477
3478 text_bounds.origin
3479 + point(
3480 -scroll_pixel_position.x,
3481 row_target.as_f32() * line_height - scroll_pixel_position.y,
3482 )
3483 };
3484
3485 element.prepaint_as_root(origin, element_bounds.into(), cx);
3486 Some(element)
3487 }
3488 }
3489 }
3490
3491 fn layout_mouse_context_menu(
3492 &self,
3493 editor_snapshot: &EditorSnapshot,
3494 visible_range: Range<DisplayRow>,
3495 content_origin: gpui::Point<Pixels>,
3496 cx: &mut WindowContext,
3497 ) -> Option<AnyElement> {
3498 let position = self.editor.update(cx, |editor, cx| {
3499 let visible_start_point = editor.display_to_pixel_point(
3500 DisplayPoint::new(visible_range.start, 0),
3501 editor_snapshot,
3502 cx,
3503 )?;
3504 let visible_end_point = editor.display_to_pixel_point(
3505 DisplayPoint::new(visible_range.end, 0),
3506 editor_snapshot,
3507 cx,
3508 )?;
3509
3510 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3511 let (source_display_point, position) = match mouse_context_menu.position {
3512 MenuPosition::PinnedToScreen(point) => (None, point),
3513 MenuPosition::PinnedToEditor { source, offset } => {
3514 let source_display_point = source.to_display_point(editor_snapshot);
3515 let source_point = editor.to_pixel_point(source, editor_snapshot, cx)?;
3516 let position = content_origin + source_point + offset;
3517 (Some(source_display_point), position)
3518 }
3519 };
3520
3521 let source_included = source_display_point.map_or(true, |source_display_point| {
3522 visible_range
3523 .to_inclusive()
3524 .contains(&source_display_point.row())
3525 });
3526 let position_included =
3527 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3528 if !source_included && !position_included {
3529 None
3530 } else {
3531 Some(position)
3532 }
3533 })?;
3534
3535 let mut element = self.editor.update(cx, |editor, _| {
3536 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3537 let context_menu = mouse_context_menu.context_menu.clone();
3538
3539 Some(
3540 deferred(
3541 anchored()
3542 .position(position)
3543 .child(context_menu)
3544 .anchor(Corner::TopLeft)
3545 .snap_to_window_with_margin(px(8.)),
3546 )
3547 .with_priority(1)
3548 .into_any(),
3549 )
3550 })?;
3551
3552 element.prepaint_as_root(position, AvailableSpace::min_size(), cx);
3553 Some(element)
3554 }
3555
3556 #[allow(clippy::too_many_arguments)]
3557 fn layout_hover_popovers(
3558 &self,
3559 snapshot: &EditorSnapshot,
3560 hitbox: &Hitbox,
3561 text_hitbox: &Hitbox,
3562 visible_display_row_range: Range<DisplayRow>,
3563 content_origin: gpui::Point<Pixels>,
3564 scroll_pixel_position: gpui::Point<Pixels>,
3565 line_layouts: &[LineWithInvisibles],
3566 line_height: Pixels,
3567 em_width: Pixels,
3568 cx: &mut WindowContext,
3569 ) {
3570 struct MeasuredHoverPopover {
3571 element: AnyElement,
3572 size: Size<Pixels>,
3573 horizontal_offset: Pixels,
3574 }
3575
3576 let max_size = size(
3577 (120. * em_width) // Default size
3578 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3579 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3580 (16. * line_height) // Default size
3581 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3582 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3583 );
3584
3585 let hover_popovers = self.editor.update(cx, |editor, cx| {
3586 editor
3587 .hover_state
3588 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3589 });
3590 let Some((position, hover_popovers)) = hover_popovers else {
3591 return;
3592 };
3593
3594 // This is safe because we check on layout whether the required row is available
3595 let hovered_row_layout =
3596 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3597
3598 // Compute Hovered Point
3599 let x =
3600 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3601 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3602 let hovered_point = content_origin + point(x, y);
3603
3604 let mut overall_height = Pixels::ZERO;
3605 let mut measured_hover_popovers = Vec::new();
3606 for mut hover_popover in hover_popovers {
3607 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), cx);
3608 let horizontal_offset =
3609 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3610
3611 overall_height += HOVER_POPOVER_GAP + size.height;
3612
3613 measured_hover_popovers.push(MeasuredHoverPopover {
3614 element: hover_popover,
3615 size,
3616 horizontal_offset,
3617 });
3618 }
3619 overall_height += HOVER_POPOVER_GAP;
3620
3621 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
3622 let mut occlusion = div()
3623 .size_full()
3624 .occlude()
3625 .on_mouse_move(|_, cx| cx.stop_propagation())
3626 .into_any_element();
3627 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
3628 cx.defer_draw(occlusion, origin, 2);
3629 }
3630
3631 if hovered_point.y > overall_height {
3632 // There is enough space above. Render popovers above the hovered point
3633 let mut current_y = hovered_point.y;
3634 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3635 let size = popover.size;
3636 let popover_origin = point(
3637 hovered_point.x + popover.horizontal_offset,
3638 current_y - size.height,
3639 );
3640
3641 cx.defer_draw(popover.element, popover_origin, 2);
3642 if position != itertools::Position::Last {
3643 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3644 draw_occluder(size.width, origin, cx);
3645 }
3646
3647 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3648 }
3649 } else {
3650 // There is not enough space above. Render popovers below the hovered point
3651 let mut current_y = hovered_point.y + line_height;
3652 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3653 let size = popover.size;
3654 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3655
3656 cx.defer_draw(popover.element, popover_origin, 2);
3657 if position != itertools::Position::Last {
3658 let origin = point(popover_origin.x, popover_origin.y + size.height);
3659 draw_occluder(size.width, origin, cx);
3660 }
3661
3662 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3663 }
3664 }
3665 }
3666
3667 #[allow(clippy::too_many_arguments)]
3668 fn layout_signature_help(
3669 &self,
3670 hitbox: &Hitbox,
3671 content_origin: gpui::Point<Pixels>,
3672 scroll_pixel_position: gpui::Point<Pixels>,
3673 newest_selection_head: Option<DisplayPoint>,
3674 start_row: DisplayRow,
3675 line_layouts: &[LineWithInvisibles],
3676 line_height: Pixels,
3677 em_width: Pixels,
3678 cx: &mut WindowContext,
3679 ) {
3680 if !self.editor.focus_handle(cx).is_focused(cx) {
3681 return;
3682 }
3683 let Some(newest_selection_head) = newest_selection_head else {
3684 return;
3685 };
3686 let selection_row = newest_selection_head.row();
3687 if selection_row < start_row {
3688 return;
3689 }
3690 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
3691 else {
3692 return;
3693 };
3694
3695 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
3696 - scroll_pixel_position.x
3697 + content_origin.x;
3698 let start_y =
3699 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
3700
3701 let max_size = size(
3702 (120. * em_width) // Default size
3703 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3704 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3705 (16. * line_height) // Default size
3706 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3707 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3708 );
3709
3710 let maybe_element = self.editor.update(cx, |editor, cx| {
3711 if let Some(popover) = editor.signature_help_state.popover_mut() {
3712 let element = popover.render(
3713 &self.style,
3714 max_size,
3715 editor.workspace.as_ref().map(|(w, _)| w.clone()),
3716 cx,
3717 );
3718 Some(element)
3719 } else {
3720 None
3721 }
3722 });
3723 if let Some(mut element) = maybe_element {
3724 let window_size = cx.viewport_size();
3725 let size = element.layout_as_root(Size::<AvailableSpace>::default(), cx);
3726 let mut point = point(start_x, start_y - size.height);
3727
3728 // Adjusting to ensure the popover does not overflow in the X-axis direction.
3729 if point.x + size.width >= window_size.width {
3730 point.x = window_size.width - size.width;
3731 }
3732
3733 cx.defer_draw(element, point, 1)
3734 }
3735 }
3736
3737 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
3738 cx.paint_layer(layout.hitbox.bounds, |cx| {
3739 let scroll_top = layout.position_map.snapshot.scroll_position().y;
3740 let gutter_bg = cx.theme().colors().editor_gutter_background;
3741 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
3742 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
3743
3744 if let EditorMode::Full = layout.mode {
3745 let mut active_rows = layout.active_rows.iter().peekable();
3746 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
3747 let mut end_row = start_row.0;
3748 while active_rows
3749 .peek()
3750 .map_or(false, |(active_row, has_selection)| {
3751 active_row.0 == end_row + 1
3752 && *has_selection == contains_non_empty_selection
3753 })
3754 {
3755 active_rows.next().unwrap();
3756 end_row += 1;
3757 }
3758
3759 if !contains_non_empty_selection {
3760 let highlight_h_range =
3761 match layout.position_map.snapshot.current_line_highlight {
3762 CurrentLineHighlight::Gutter => Some(Range {
3763 start: layout.hitbox.left(),
3764 end: layout.gutter_hitbox.right(),
3765 }),
3766 CurrentLineHighlight::Line => Some(Range {
3767 start: layout.text_hitbox.bounds.left(),
3768 end: layout.text_hitbox.bounds.right(),
3769 }),
3770 CurrentLineHighlight::All => Some(Range {
3771 start: layout.hitbox.left(),
3772 end: layout.hitbox.right(),
3773 }),
3774 CurrentLineHighlight::None => None,
3775 };
3776 if let Some(range) = highlight_h_range {
3777 let active_line_bg = cx.theme().colors().editor_active_line_background;
3778 let bounds = Bounds {
3779 origin: point(
3780 range.start,
3781 layout.hitbox.origin.y
3782 + (start_row.as_f32() - scroll_top)
3783 * layout.position_map.line_height,
3784 ),
3785 size: size(
3786 range.end - range.start,
3787 layout.position_map.line_height
3788 * (end_row - start_row.0 + 1) as f32,
3789 ),
3790 };
3791 cx.paint_quad(fill(bounds, active_line_bg));
3792 }
3793 }
3794 }
3795
3796 let mut paint_highlight =
3797 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
3798 let origin = point(
3799 layout.hitbox.origin.x,
3800 layout.hitbox.origin.y
3801 + (highlight_row_start.as_f32() - scroll_top)
3802 * layout.position_map.line_height,
3803 );
3804 let size = size(
3805 layout.hitbox.size.width,
3806 layout.position_map.line_height
3807 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
3808 );
3809 cx.paint_quad(fill(Bounds { origin, size }, color));
3810 };
3811
3812 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
3813 for (&new_row, &new_color) in &layout.highlighted_rows {
3814 match &mut current_paint {
3815 Some((current_color, current_range)) => {
3816 let current_color = *current_color;
3817 let new_range_started = current_color != new_color
3818 || current_range.end.next_row() != new_row;
3819 if new_range_started {
3820 paint_highlight(
3821 current_range.start,
3822 current_range.end,
3823 current_color,
3824 );
3825 current_paint = Some((new_color, new_row..new_row));
3826 continue;
3827 } else {
3828 current_range.end = current_range.end.next_row();
3829 }
3830 }
3831 None => current_paint = Some((new_color, new_row..new_row)),
3832 };
3833 }
3834 if let Some((color, range)) = current_paint {
3835 paint_highlight(range.start, range.end, color);
3836 }
3837
3838 let scroll_left =
3839 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
3840
3841 for (wrap_position, active) in layout.wrap_guides.iter() {
3842 let x = (layout.text_hitbox.origin.x
3843 + *wrap_position
3844 + layout.position_map.em_width / 2.)
3845 - scroll_left;
3846
3847 let show_scrollbars = {
3848 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
3849
3850 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
3851 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
3852 };
3853
3854 if x < layout.text_hitbox.origin.x
3855 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
3856 {
3857 continue;
3858 }
3859
3860 let color = if *active {
3861 cx.theme().colors().editor_active_wrap_guide
3862 } else {
3863 cx.theme().colors().editor_wrap_guide
3864 };
3865 cx.paint_quad(fill(
3866 Bounds {
3867 origin: point(x, layout.text_hitbox.origin.y),
3868 size: size(px(1.), layout.text_hitbox.size.height),
3869 },
3870 color,
3871 ));
3872 }
3873 }
3874 })
3875 }
3876
3877 fn paint_indent_guides(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3878 let Some(indent_guides) = &layout.indent_guides else {
3879 return;
3880 };
3881
3882 let faded_color = |color: Hsla, alpha: f32| {
3883 let mut faded = color;
3884 faded.a = alpha;
3885 faded
3886 };
3887
3888 for indent_guide in indent_guides {
3889 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
3890 let settings = indent_guide.settings;
3891
3892 // TODO fixed for now, expose them through themes later
3893 const INDENT_AWARE_ALPHA: f32 = 0.2;
3894 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
3895 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
3896 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
3897
3898 let line_color = match (settings.coloring, indent_guide.active) {
3899 (IndentGuideColoring::Disabled, _) => None,
3900 (IndentGuideColoring::Fixed, false) => {
3901 Some(cx.theme().colors().editor_indent_guide)
3902 }
3903 (IndentGuideColoring::Fixed, true) => {
3904 Some(cx.theme().colors().editor_indent_guide_active)
3905 }
3906 (IndentGuideColoring::IndentAware, false) => {
3907 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
3908 }
3909 (IndentGuideColoring::IndentAware, true) => {
3910 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
3911 }
3912 };
3913
3914 let background_color = match (settings.background_coloring, indent_guide.active) {
3915 (IndentGuideBackgroundColoring::Disabled, _) => None,
3916 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
3917 indent_accent_colors,
3918 INDENT_AWARE_BACKGROUND_ALPHA,
3919 )),
3920 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
3921 indent_accent_colors,
3922 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
3923 )),
3924 };
3925
3926 let requested_line_width = if indent_guide.active {
3927 settings.active_line_width
3928 } else {
3929 settings.line_width
3930 }
3931 .clamp(1, 10);
3932 let mut line_indicator_width = 0.;
3933 if let Some(color) = line_color {
3934 cx.paint_quad(fill(
3935 Bounds {
3936 origin: indent_guide.origin,
3937 size: size(px(requested_line_width as f32), indent_guide.length),
3938 },
3939 color,
3940 ));
3941 line_indicator_width = requested_line_width as f32;
3942 }
3943
3944 if let Some(color) = background_color {
3945 let width = indent_guide.single_indent_width - px(line_indicator_width);
3946 cx.paint_quad(fill(
3947 Bounds {
3948 origin: point(
3949 indent_guide.origin.x + px(line_indicator_width),
3950 indent_guide.origin.y,
3951 ),
3952 size: size(width, indent_guide.length),
3953 },
3954 color,
3955 ));
3956 }
3957 }
3958 }
3959
3960 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3961 let is_singleton = self.editor.read(cx).is_singleton(cx);
3962
3963 let line_height = layout.position_map.line_height;
3964 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
3965
3966 for LineNumberLayout {
3967 shaped_line,
3968 hitbox,
3969 display_row,
3970 } in layout.line_numbers.values()
3971 {
3972 let Some(hitbox) = hitbox else {
3973 continue;
3974 };
3975
3976 let is_active = layout.active_rows.contains_key(&display_row);
3977
3978 let color = if is_active {
3979 cx.theme().colors().editor_active_line_number
3980 } else {
3981 cx.theme().colors().editor_line_number
3982 };
3983
3984 let Some(line) = self
3985 .shape_line_number(shaped_line.text.clone(), color, cx)
3986 .log_err()
3987 else {
3988 continue;
3989 };
3990 let Some(()) = line.paint(hitbox.origin, line_height, cx).log_err() else {
3991 continue;
3992 };
3993 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
3994 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
3995 if is_singleton {
3996 cx.set_cursor_style(CursorStyle::IBeam, hitbox);
3997 } else {
3998 cx.set_cursor_style(CursorStyle::PointingHand, hitbox);
3999 }
4000 }
4001 }
4002
4003 fn paint_diff_hunks(layout: &mut EditorLayout, cx: &mut WindowContext) {
4004 if layout.display_hunks.is_empty() {
4005 return;
4006 }
4007
4008 let line_height = layout.position_map.line_height;
4009 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
4010 for (hunk, hitbox) in &layout.display_hunks {
4011 let hunk_to_paint = match hunk {
4012 DisplayDiffHunk::Folded { .. } => {
4013 let hunk_bounds = Self::diff_hunk_bounds(
4014 &layout.position_map.snapshot,
4015 line_height,
4016 layout.gutter_hitbox.bounds,
4017 hunk,
4018 );
4019 Some((
4020 hunk_bounds,
4021 cx.theme().status().modified,
4022 Corners::all(px(0.)),
4023 ))
4024 }
4025 DisplayDiffHunk::Unfolded { status, .. } => {
4026 hitbox.as_ref().map(|hunk_hitbox| match status {
4027 DiffHunkStatus::Added => (
4028 hunk_hitbox.bounds,
4029 cx.theme().status().created,
4030 Corners::all(px(0.)),
4031 ),
4032 DiffHunkStatus::Modified => (
4033 hunk_hitbox.bounds,
4034 cx.theme().status().modified,
4035 Corners::all(px(0.)),
4036 ),
4037 DiffHunkStatus::Removed => (
4038 Bounds::new(
4039 point(
4040 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4041 hunk_hitbox.origin.y,
4042 ),
4043 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4044 ),
4045 cx.theme().status().deleted,
4046 Corners::all(1. * line_height),
4047 ),
4048 })
4049 }
4050 };
4051
4052 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4053 cx.paint_quad(quad(
4054 hunk_bounds,
4055 corner_radii,
4056 background_color,
4057 Edges::default(),
4058 transparent_black(),
4059 ));
4060 }
4061 }
4062 });
4063 }
4064
4065 pub(super) fn diff_hunk_bounds(
4066 snapshot: &EditorSnapshot,
4067 line_height: Pixels,
4068 gutter_bounds: Bounds<Pixels>,
4069 hunk: &DisplayDiffHunk,
4070 ) -> Bounds<Pixels> {
4071 let scroll_position = snapshot.scroll_position();
4072 let scroll_top = scroll_position.y * line_height;
4073
4074 match hunk {
4075 DisplayDiffHunk::Folded { display_row, .. } => {
4076 let start_y = display_row.as_f32() * line_height - scroll_top;
4077 let end_y = start_y + line_height;
4078
4079 let width = Self::diff_hunk_strip_width(line_height);
4080 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4081 let highlight_size = size(width, end_y - start_y);
4082 Bounds::new(highlight_origin, highlight_size)
4083 }
4084 DisplayDiffHunk::Unfolded {
4085 display_row_range,
4086 status,
4087 ..
4088 } => match status {
4089 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
4090 let start_row = display_row_range.start;
4091 let end_row = display_row_range.end;
4092 // If we're in a multibuffer, row range span might include an
4093 // excerpt header, so if we were to draw the marker straight away,
4094 // the hunk might include the rows of that header.
4095 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4096 // Instead, we simply check whether the range we're dealing with includes
4097 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4098 let end_row_in_current_excerpt = snapshot
4099 .blocks_in_range(start_row..end_row)
4100 .find_map(|(start_row, block)| {
4101 if matches!(block, Block::ExcerptBoundary { .. }) {
4102 Some(start_row)
4103 } else {
4104 None
4105 }
4106 })
4107 .unwrap_or(end_row);
4108
4109 let start_y = start_row.as_f32() * line_height - scroll_top;
4110 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4111
4112 let width = Self::diff_hunk_strip_width(line_height);
4113 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4114 let highlight_size = size(width, end_y - start_y);
4115 Bounds::new(highlight_origin, highlight_size)
4116 }
4117 DiffHunkStatus::Removed => {
4118 let row = display_row_range.start;
4119
4120 let offset = line_height / 2.;
4121 let start_y = row.as_f32() * line_height - offset - scroll_top;
4122 let end_y = start_y + line_height;
4123
4124 let width = (0.35 * line_height).floor();
4125 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4126 let highlight_size = size(width, end_y - start_y);
4127 Bounds::new(highlight_origin, highlight_size)
4128 }
4129 },
4130 }
4131 }
4132
4133 /// Returns the width of the diff strip that will be displayed in the gutter.
4134 pub(super) fn diff_hunk_strip_width(line_height: Pixels) -> Pixels {
4135 // We floor the value to prevent pixel rounding.
4136 (0.275 * line_height).floor()
4137 }
4138
4139 fn paint_gutter_indicators(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4140 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
4141 cx.with_element_namespace("crease_toggles", |cx| {
4142 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4143 crease_toggle.paint(cx);
4144 }
4145 });
4146
4147 for test_indicator in layout.test_indicators.iter_mut() {
4148 test_indicator.paint(cx);
4149 }
4150
4151 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4152 indicator.paint(cx);
4153 }
4154 });
4155 }
4156
4157 fn paint_gutter_highlights(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4158 for (_, hunk_hitbox) in &layout.display_hunks {
4159 if let Some(hunk_hitbox) = hunk_hitbox {
4160 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4161 }
4162 }
4163
4164 let show_git_gutter = layout
4165 .position_map
4166 .snapshot
4167 .show_git_diff_gutter
4168 .unwrap_or_else(|| {
4169 matches!(
4170 ProjectSettings::get_global(cx).git.git_gutter,
4171 Some(GitGutterSetting::TrackedFiles)
4172 )
4173 });
4174 if show_git_gutter {
4175 Self::paint_diff_hunks(layout, cx)
4176 }
4177
4178 let highlight_width = 0.275 * layout.position_map.line_height;
4179 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4180 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
4181 for (range, color) in &layout.highlighted_gutter_ranges {
4182 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4183 layout.visible_display_row_range.start - DisplayRow(1)
4184 } else {
4185 range.start.row()
4186 };
4187 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4188 layout.visible_display_row_range.end + DisplayRow(1)
4189 } else {
4190 range.end.row()
4191 };
4192
4193 let start_y = layout.gutter_hitbox.top()
4194 + start_row.0 as f32 * layout.position_map.line_height
4195 - layout.position_map.scroll_pixel_position.y;
4196 let end_y = layout.gutter_hitbox.top()
4197 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4198 - layout.position_map.scroll_pixel_position.y;
4199 let bounds = Bounds::from_corners(
4200 point(layout.gutter_hitbox.left(), start_y),
4201 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4202 );
4203 cx.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4204 }
4205 });
4206 }
4207
4208 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4209 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4210 return;
4211 };
4212
4213 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
4214 for mut blame_element in blamed_display_rows.into_iter() {
4215 blame_element.paint(cx);
4216 }
4217 })
4218 }
4219
4220 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4221 cx.with_content_mask(
4222 Some(ContentMask {
4223 bounds: layout.text_hitbox.bounds,
4224 }),
4225 |cx| {
4226 let cursor_style = if self
4227 .editor
4228 .read(cx)
4229 .hovered_link_state
4230 .as_ref()
4231 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4232 {
4233 CursorStyle::PointingHand
4234 } else {
4235 CursorStyle::IBeam
4236 };
4237 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
4238
4239 let invisible_display_ranges = self.paint_highlights(layout, cx);
4240 self.paint_lines(&invisible_display_ranges, layout, cx);
4241 self.paint_redactions(layout, cx);
4242 self.paint_cursors(layout, cx);
4243 self.paint_inline_blame(layout, cx);
4244 cx.with_element_namespace("crease_trailers", |cx| {
4245 for trailer in layout.crease_trailers.iter_mut().flatten() {
4246 trailer.element.paint(cx);
4247 }
4248 });
4249 },
4250 )
4251 }
4252
4253 fn paint_highlights(
4254 &mut self,
4255 layout: &mut EditorLayout,
4256 cx: &mut WindowContext,
4257 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4258 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
4259 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4260 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4261 for (range, color) in &layout.highlighted_ranges {
4262 self.paint_highlighted_range(
4263 range.clone(),
4264 *color,
4265 Pixels::ZERO,
4266 line_end_overshoot,
4267 layout,
4268 cx,
4269 );
4270 }
4271
4272 let corner_radius = 0.15 * layout.position_map.line_height;
4273
4274 for (player_color, selections) in &layout.selections {
4275 for selection in selections.iter() {
4276 self.paint_highlighted_range(
4277 selection.range.clone(),
4278 player_color.selection,
4279 corner_radius,
4280 corner_radius * 2.,
4281 layout,
4282 cx,
4283 );
4284
4285 if selection.is_local && !selection.range.is_empty() {
4286 invisible_display_ranges.push(selection.range.clone());
4287 }
4288 }
4289 }
4290 invisible_display_ranges
4291 })
4292 }
4293
4294 fn paint_lines(
4295 &mut self,
4296 invisible_display_ranges: &[Range<DisplayPoint>],
4297 layout: &mut EditorLayout,
4298 cx: &mut WindowContext,
4299 ) {
4300 let whitespace_setting = self
4301 .editor
4302 .read(cx)
4303 .buffer
4304 .read(cx)
4305 .settings_at(0, cx)
4306 .show_whitespaces;
4307
4308 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4309 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4310 line_with_invisibles.draw(
4311 layout,
4312 row,
4313 layout.content_origin,
4314 whitespace_setting,
4315 invisible_display_ranges,
4316 cx,
4317 )
4318 }
4319
4320 for line_element in &mut layout.line_elements {
4321 line_element.paint(cx);
4322 }
4323 }
4324
4325 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
4326 if layout.redacted_ranges.is_empty() {
4327 return;
4328 }
4329
4330 let line_end_overshoot = layout.line_end_overshoot();
4331
4332 // A softer than perfect black
4333 let redaction_color = gpui::rgb(0x0e1111);
4334
4335 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
4336 for range in layout.redacted_ranges.iter() {
4337 self.paint_highlighted_range(
4338 range.clone(),
4339 redaction_color.into(),
4340 Pixels::ZERO,
4341 line_end_overshoot,
4342 layout,
4343 cx,
4344 );
4345 }
4346 });
4347 }
4348
4349 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4350 for cursor in &mut layout.visible_cursors {
4351 cursor.paint(layout.content_origin, cx);
4352 }
4353 }
4354
4355 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4356 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4357
4358 if let Some(scrollbar_layout) = scrollbar_x {
4359 let hitbox = scrollbar_layout.hitbox.clone();
4360 let text_unit_size = scrollbar_layout.text_unit_size;
4361 let visible_range = scrollbar_layout.visible_range.clone();
4362 let thumb_bounds = scrollbar_layout.thumb_bounds();
4363
4364 if scrollbar_layout.visible {
4365 cx.paint_layer(hitbox.bounds, |cx| {
4366 cx.paint_quad(quad(
4367 hitbox.bounds,
4368 Corners::default(),
4369 cx.theme().colors().scrollbar_track_background,
4370 Edges {
4371 top: Pixels::ZERO,
4372 right: Pixels::ZERO,
4373 bottom: Pixels::ZERO,
4374 left: Pixels::ZERO,
4375 },
4376 cx.theme().colors().scrollbar_track_border,
4377 ));
4378
4379 cx.paint_quad(quad(
4380 thumb_bounds,
4381 Corners::default(),
4382 cx.theme().colors().scrollbar_thumb_background,
4383 Edges {
4384 top: Pixels::ZERO,
4385 right: Pixels::ZERO,
4386 bottom: Pixels::ZERO,
4387 left: ScrollbarLayout::BORDER_WIDTH,
4388 },
4389 cx.theme().colors().scrollbar_thumb_border,
4390 ));
4391 })
4392 }
4393
4394 cx.set_cursor_style(CursorStyle::Arrow, &hitbox);
4395
4396 cx.on_mouse_event({
4397 let editor = self.editor.clone();
4398
4399 // there may be a way to avoid this clone
4400 let hitbox = hitbox.clone();
4401
4402 let mut mouse_position = cx.mouse_position();
4403 move |event: &MouseMoveEvent, phase, cx| {
4404 if phase == DispatchPhase::Capture {
4405 return;
4406 }
4407
4408 editor.update(cx, |editor, cx| {
4409 if event.pressed_button == Some(MouseButton::Left)
4410 && editor
4411 .scroll_manager
4412 .is_dragging_scrollbar(Axis::Horizontal)
4413 {
4414 let x = mouse_position.x;
4415 let new_x = event.position.x;
4416 if (hitbox.left()..hitbox.right()).contains(&x) {
4417 let mut position = editor.scroll_position(cx);
4418
4419 position.x += (new_x - x) / text_unit_size;
4420 if position.x < 0.0 {
4421 position.x = 0.0;
4422 }
4423 editor.set_scroll_position(position, cx);
4424 }
4425
4426 cx.stop_propagation();
4427 } else {
4428 editor.scroll_manager.set_is_dragging_scrollbar(
4429 Axis::Horizontal,
4430 false,
4431 cx,
4432 );
4433
4434 if hitbox.is_hovered(cx) {
4435 editor.scroll_manager.show_scrollbar(cx);
4436 }
4437 }
4438 mouse_position = event.position;
4439 })
4440 }
4441 });
4442
4443 if self
4444 .editor
4445 .read(cx)
4446 .scroll_manager
4447 .is_dragging_scrollbar(Axis::Horizontal)
4448 {
4449 cx.on_mouse_event({
4450 let editor = self.editor.clone();
4451 move |_: &MouseUpEvent, phase, cx| {
4452 if phase == DispatchPhase::Capture {
4453 return;
4454 }
4455
4456 editor.update(cx, |editor, cx| {
4457 editor.scroll_manager.set_is_dragging_scrollbar(
4458 Axis::Horizontal,
4459 false,
4460 cx,
4461 );
4462 cx.stop_propagation();
4463 });
4464 }
4465 });
4466 } else {
4467 cx.on_mouse_event({
4468 let editor = self.editor.clone();
4469
4470 move |event: &MouseDownEvent, phase, cx| {
4471 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
4472 return;
4473 }
4474
4475 editor.update(cx, |editor, cx| {
4476 editor.scroll_manager.set_is_dragging_scrollbar(
4477 Axis::Horizontal,
4478 true,
4479 cx,
4480 );
4481
4482 let x = event.position.x;
4483
4484 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4485 let center_row =
4486 ((x - hitbox.left()) / text_unit_size).round() as u32;
4487 let top_row = center_row.saturating_sub(
4488 (visible_range.end - visible_range.start) as u32 / 2,
4489 );
4490
4491 let mut position = editor.scroll_position(cx);
4492 position.x = top_row as f32;
4493
4494 editor.set_scroll_position(position, cx);
4495 } else {
4496 editor.scroll_manager.show_scrollbar(cx);
4497 }
4498
4499 cx.stop_propagation();
4500 });
4501 }
4502 });
4503 }
4504 }
4505
4506 if let Some(scrollbar_layout) = scrollbar_y {
4507 let hitbox = scrollbar_layout.hitbox.clone();
4508 let text_unit_size = scrollbar_layout.text_unit_size;
4509 let visible_range = scrollbar_layout.visible_range.clone();
4510 let thumb_bounds = scrollbar_layout.thumb_bounds();
4511
4512 if scrollbar_layout.visible {
4513 cx.paint_layer(hitbox.bounds, |cx| {
4514 cx.paint_quad(quad(
4515 hitbox.bounds,
4516 Corners::default(),
4517 cx.theme().colors().scrollbar_track_background,
4518 Edges {
4519 top: Pixels::ZERO,
4520 right: Pixels::ZERO,
4521 bottom: Pixels::ZERO,
4522 left: ScrollbarLayout::BORDER_WIDTH,
4523 },
4524 cx.theme().colors().scrollbar_track_border,
4525 ));
4526
4527 let fast_markers =
4528 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4529 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4530 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, cx);
4531
4532 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4533 for marker in markers.iter().chain(&fast_markers) {
4534 let mut marker = marker.clone();
4535 marker.bounds.origin += hitbox.origin;
4536 cx.paint_quad(marker);
4537 }
4538
4539 cx.paint_quad(quad(
4540 thumb_bounds,
4541 Corners::default(),
4542 cx.theme().colors().scrollbar_thumb_background,
4543 Edges {
4544 top: Pixels::ZERO,
4545 right: Pixels::ZERO,
4546 bottom: Pixels::ZERO,
4547 left: ScrollbarLayout::BORDER_WIDTH,
4548 },
4549 cx.theme().colors().scrollbar_thumb_border,
4550 ));
4551 });
4552 }
4553
4554 cx.set_cursor_style(CursorStyle::Arrow, &hitbox);
4555
4556 cx.on_mouse_event({
4557 let editor = self.editor.clone();
4558
4559 let hitbox = hitbox.clone();
4560
4561 let mut mouse_position = cx.mouse_position();
4562 move |event: &MouseMoveEvent, phase, cx| {
4563 if phase == DispatchPhase::Capture {
4564 return;
4565 }
4566
4567 editor.update(cx, |editor, cx| {
4568 if event.pressed_button == Some(MouseButton::Left)
4569 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4570 {
4571 let y = mouse_position.y;
4572 let new_y = event.position.y;
4573 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4574 let mut position = editor.scroll_position(cx);
4575 position.y += (new_y - y) / text_unit_size;
4576 if position.y < 0.0 {
4577 position.y = 0.0;
4578 }
4579 editor.set_scroll_position(position, cx);
4580 }
4581 } else {
4582 editor.scroll_manager.set_is_dragging_scrollbar(
4583 Axis::Vertical,
4584 false,
4585 cx,
4586 );
4587
4588 if hitbox.is_hovered(cx) {
4589 editor.scroll_manager.show_scrollbar(cx);
4590 }
4591 }
4592 mouse_position = event.position;
4593 })
4594 }
4595 });
4596
4597 if self
4598 .editor
4599 .read(cx)
4600 .scroll_manager
4601 .is_dragging_scrollbar(Axis::Vertical)
4602 {
4603 cx.on_mouse_event({
4604 let editor = self.editor.clone();
4605 move |_: &MouseUpEvent, phase, cx| {
4606 if phase == DispatchPhase::Capture {
4607 return;
4608 }
4609
4610 editor.update(cx, |editor, cx| {
4611 editor.scroll_manager.set_is_dragging_scrollbar(
4612 Axis::Vertical,
4613 false,
4614 cx,
4615 );
4616 cx.stop_propagation();
4617 });
4618 }
4619 });
4620 } else {
4621 cx.on_mouse_event({
4622 let editor = self.editor.clone();
4623
4624 move |event: &MouseDownEvent, phase, cx| {
4625 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
4626 return;
4627 }
4628
4629 editor.update(cx, |editor, cx| {
4630 editor.scroll_manager.set_is_dragging_scrollbar(
4631 Axis::Vertical,
4632 true,
4633 cx,
4634 );
4635
4636 let y = event.position.y;
4637 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
4638 let center_row =
4639 ((y - hitbox.top()) / text_unit_size).round() as u32;
4640 let top_row = center_row.saturating_sub(
4641 (visible_range.end - visible_range.start) as u32 / 2,
4642 );
4643 let mut position = editor.scroll_position(cx);
4644 position.y = top_row as f32;
4645 editor.set_scroll_position(position, cx);
4646 } else {
4647 editor.scroll_manager.show_scrollbar(cx);
4648 }
4649
4650 cx.stop_propagation();
4651 });
4652 }
4653 });
4654 }
4655 }
4656 }
4657
4658 fn collect_fast_scrollbar_markers(
4659 &self,
4660 layout: &EditorLayout,
4661 scrollbar_layout: &ScrollbarLayout,
4662 cx: &mut WindowContext,
4663 ) -> Vec<PaintQuad> {
4664 const LIMIT: usize = 100;
4665 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
4666 return vec![];
4667 }
4668 let cursor_ranges = layout
4669 .cursors
4670 .iter()
4671 .map(|(point, color)| ColoredRange {
4672 start: point.row(),
4673 end: point.row(),
4674 color: *color,
4675 })
4676 .collect_vec();
4677 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
4678 }
4679
4680 fn refresh_slow_scrollbar_markers(
4681 &self,
4682 layout: &EditorLayout,
4683 scrollbar_layout: &ScrollbarLayout,
4684 cx: &mut WindowContext,
4685 ) {
4686 self.editor.update(cx, |editor, cx| {
4687 if !editor.is_singleton(cx)
4688 || !editor
4689 .scrollbar_marker_state
4690 .should_refresh(scrollbar_layout.hitbox.size)
4691 {
4692 return;
4693 }
4694
4695 let scrollbar_layout = scrollbar_layout.clone();
4696 let background_highlights = editor.background_highlights.clone();
4697 let snapshot = layout.position_map.snapshot.clone();
4698 let theme = cx.theme().clone();
4699 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
4700
4701 editor.scrollbar_marker_state.dirty = false;
4702 editor.scrollbar_marker_state.pending_refresh =
4703 Some(cx.spawn(|editor, mut cx| async move {
4704 let scrollbar_size = scrollbar_layout.hitbox.size;
4705 let scrollbar_markers = cx
4706 .background_executor()
4707 .spawn(async move {
4708 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
4709 let mut marker_quads = Vec::new();
4710 if scrollbar_settings.git_diff {
4711 let marker_row_ranges = snapshot
4712 .diff_map
4713 .diff_hunks(&snapshot.buffer_snapshot)
4714 .map(|hunk| {
4715 let start_display_row =
4716 MultiBufferPoint::new(hunk.row_range.start.0, 0)
4717 .to_display_point(&snapshot.display_snapshot)
4718 .row();
4719 let mut end_display_row =
4720 MultiBufferPoint::new(hunk.row_range.end.0, 0)
4721 .to_display_point(&snapshot.display_snapshot)
4722 .row();
4723 if end_display_row != start_display_row {
4724 end_display_row.0 -= 1;
4725 }
4726 let color = match hunk_status(&hunk) {
4727 DiffHunkStatus::Added => theme.status().created,
4728 DiffHunkStatus::Modified => theme.status().modified,
4729 DiffHunkStatus::Removed => theme.status().deleted,
4730 };
4731 ColoredRange {
4732 start: start_display_row,
4733 end: end_display_row,
4734 color,
4735 }
4736 });
4737
4738 marker_quads.extend(
4739 scrollbar_layout
4740 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
4741 );
4742 }
4743
4744 for (background_highlight_id, (_, background_ranges)) in
4745 background_highlights.iter()
4746 {
4747 let is_search_highlights = *background_highlight_id
4748 == TypeId::of::<BufferSearchHighlights>();
4749 let is_symbol_occurrences = *background_highlight_id
4750 == TypeId::of::<DocumentHighlightRead>()
4751 || *background_highlight_id
4752 == TypeId::of::<DocumentHighlightWrite>();
4753 if (is_search_highlights && scrollbar_settings.search_results)
4754 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
4755 {
4756 let mut color = theme.status().info;
4757 if is_symbol_occurrences {
4758 color.fade_out(0.5);
4759 }
4760 let marker_row_ranges = background_ranges.iter().map(|range| {
4761 let display_start = range
4762 .start
4763 .to_display_point(&snapshot.display_snapshot);
4764 let display_end =
4765 range.end.to_display_point(&snapshot.display_snapshot);
4766 ColoredRange {
4767 start: display_start.row(),
4768 end: display_end.row(),
4769 color,
4770 }
4771 });
4772 marker_quads.extend(
4773 scrollbar_layout
4774 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
4775 );
4776 }
4777 }
4778
4779 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
4780 let diagnostics = snapshot
4781 .buffer_snapshot
4782 .diagnostics_in_range(Point::zero()..max_point, false)
4783 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
4784 diagnostic,
4785 range: range.to_point(&snapshot.buffer_snapshot),
4786 })
4787 // Don't show diagnostics the user doesn't care about
4788 .filter(|diagnostic| {
4789 match (
4790 scrollbar_settings.diagnostics,
4791 diagnostic.diagnostic.severity,
4792 ) {
4793 (ScrollbarDiagnostics::All, _) => true,
4794 (
4795 ScrollbarDiagnostics::Error,
4796 DiagnosticSeverity::ERROR,
4797 ) => true,
4798 (
4799 ScrollbarDiagnostics::Warning,
4800 DiagnosticSeverity::ERROR
4801 | DiagnosticSeverity::WARNING,
4802 ) => true,
4803 (
4804 ScrollbarDiagnostics::Information,
4805 DiagnosticSeverity::ERROR
4806 | DiagnosticSeverity::WARNING
4807 | DiagnosticSeverity::INFORMATION,
4808 ) => true,
4809 (_, _) => false,
4810 }
4811 })
4812 // We want to sort by severity, in order to paint the most severe diagnostics last.
4813 .sorted_by_key(|diagnostic| {
4814 std::cmp::Reverse(diagnostic.diagnostic.severity)
4815 });
4816
4817 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
4818 let start_display = diagnostic
4819 .range
4820 .start
4821 .to_display_point(&snapshot.display_snapshot);
4822 let end_display = diagnostic
4823 .range
4824 .end
4825 .to_display_point(&snapshot.display_snapshot);
4826 let color = match diagnostic.diagnostic.severity {
4827 DiagnosticSeverity::ERROR => theme.status().error,
4828 DiagnosticSeverity::WARNING => theme.status().warning,
4829 DiagnosticSeverity::INFORMATION => theme.status().info,
4830 _ => theme.status().hint,
4831 };
4832 ColoredRange {
4833 start: start_display.row(),
4834 end: end_display.row(),
4835 color,
4836 }
4837 });
4838 marker_quads.extend(
4839 scrollbar_layout
4840 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
4841 );
4842 }
4843
4844 Arc::from(marker_quads)
4845 })
4846 .await;
4847
4848 editor.update(&mut cx, |editor, cx| {
4849 editor.scrollbar_marker_state.markers = scrollbar_markers;
4850 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
4851 editor.scrollbar_marker_state.pending_refresh = None;
4852 cx.notify();
4853 })?;
4854
4855 Ok(())
4856 }));
4857 });
4858 }
4859
4860 #[allow(clippy::too_many_arguments)]
4861 fn paint_highlighted_range(
4862 &self,
4863 range: Range<DisplayPoint>,
4864 color: Hsla,
4865 corner_radius: Pixels,
4866 line_end_overshoot: Pixels,
4867 layout: &EditorLayout,
4868 cx: &mut WindowContext,
4869 ) {
4870 let start_row = layout.visible_display_row_range.start;
4871 let end_row = layout.visible_display_row_range.end;
4872 if range.start != range.end {
4873 let row_range = if range.end.column() == 0 {
4874 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
4875 } else {
4876 cmp::max(range.start.row(), start_row)
4877 ..cmp::min(range.end.row().next_row(), end_row)
4878 };
4879
4880 let highlighted_range = HighlightedRange {
4881 color,
4882 line_height: layout.position_map.line_height,
4883 corner_radius,
4884 start_y: layout.content_origin.y
4885 + row_range.start.as_f32() * layout.position_map.line_height
4886 - layout.position_map.scroll_pixel_position.y,
4887 lines: row_range
4888 .iter_rows()
4889 .map(|row| {
4890 let line_layout =
4891 &layout.position_map.line_layouts[row.minus(start_row) as usize];
4892 HighlightedRangeLine {
4893 start_x: if row == range.start.row() {
4894 layout.content_origin.x
4895 + line_layout.x_for_index(range.start.column() as usize)
4896 - layout.position_map.scroll_pixel_position.x
4897 } else {
4898 layout.content_origin.x
4899 - layout.position_map.scroll_pixel_position.x
4900 },
4901 end_x: if row == range.end.row() {
4902 layout.content_origin.x
4903 + line_layout.x_for_index(range.end.column() as usize)
4904 - layout.position_map.scroll_pixel_position.x
4905 } else {
4906 layout.content_origin.x + line_layout.width + line_end_overshoot
4907 - layout.position_map.scroll_pixel_position.x
4908 },
4909 }
4910 })
4911 .collect(),
4912 };
4913
4914 highlighted_range.paint(layout.text_hitbox.bounds, cx);
4915 }
4916 }
4917
4918 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4919 if let Some(mut inline_blame) = layout.inline_blame.take() {
4920 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
4921 inline_blame.paint(cx);
4922 })
4923 }
4924 }
4925
4926 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4927 for mut block in layout.blocks.drain(..) {
4928 block.element.paint(cx);
4929 }
4930 }
4931
4932 fn paint_inline_completion_popover(
4933 &mut self,
4934 layout: &mut EditorLayout,
4935 cx: &mut WindowContext,
4936 ) {
4937 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
4938 inline_completion_popover.paint(cx);
4939 }
4940 }
4941
4942 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4943 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
4944 mouse_context_menu.paint(cx);
4945 }
4946 }
4947
4948 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
4949 cx.on_mouse_event({
4950 let position_map = layout.position_map.clone();
4951 let editor = self.editor.clone();
4952 let hitbox = layout.hitbox.clone();
4953 let mut delta = ScrollDelta::default();
4954
4955 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
4956 // accidentally turn off their scrolling.
4957 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
4958
4959 move |event: &ScrollWheelEvent, phase, cx| {
4960 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
4961 delta = delta.coalesce(event.delta);
4962 editor.update(cx, |editor, cx| {
4963 let position_map: &PositionMap = &position_map;
4964
4965 let line_height = position_map.line_height;
4966 let max_glyph_width = position_map.em_width;
4967 let (delta, axis) = match delta {
4968 gpui::ScrollDelta::Pixels(mut pixels) => {
4969 //Trackpad
4970 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
4971 (pixels, axis)
4972 }
4973
4974 gpui::ScrollDelta::Lines(lines) => {
4975 //Not trackpad
4976 let pixels =
4977 point(lines.x * max_glyph_width, lines.y * line_height);
4978 (pixels, None)
4979 }
4980 };
4981
4982 let current_scroll_position = position_map.snapshot.scroll_position();
4983 let x = (current_scroll_position.x * max_glyph_width
4984 - (delta.x * scroll_sensitivity))
4985 / max_glyph_width;
4986 let y = (current_scroll_position.y * line_height
4987 - (delta.y * scroll_sensitivity))
4988 / line_height;
4989 let mut scroll_position =
4990 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
4991 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
4992 if forbid_vertical_scroll {
4993 scroll_position.y = current_scroll_position.y;
4994 }
4995
4996 if scroll_position != current_scroll_position {
4997 editor.scroll(scroll_position, axis, cx);
4998 cx.stop_propagation();
4999 } else if y < 0. {
5000 // Due to clamping, we may fail to detect cases of overscroll to the top;
5001 // We want the scroll manager to get an update in such cases and detect the change of direction
5002 // on the next frame.
5003 cx.notify();
5004 }
5005 });
5006 }
5007 }
5008 });
5009 }
5010
5011 fn paint_mouse_listeners(
5012 &mut self,
5013 layout: &EditorLayout,
5014 hovered_hunk: Option<HoveredHunk>,
5015 cx: &mut WindowContext,
5016 ) {
5017 self.paint_scroll_wheel_listener(layout, cx);
5018
5019 cx.on_mouse_event({
5020 let position_map = layout.position_map.clone();
5021 let editor = self.editor.clone();
5022 let text_hitbox = layout.text_hitbox.clone();
5023 let gutter_hitbox = layout.gutter_hitbox.clone();
5024 let line_numbers = layout.line_numbers.clone();
5025
5026 move |event: &MouseDownEvent, phase, cx| {
5027 if phase == DispatchPhase::Bubble {
5028 match event.button {
5029 MouseButton::Left => editor.update(cx, |editor, cx| {
5030 Self::mouse_left_down(
5031 editor,
5032 event,
5033 hovered_hunk.clone(),
5034 &position_map,
5035 &text_hitbox,
5036 &gutter_hitbox,
5037 line_numbers.as_ref(),
5038 cx,
5039 );
5040 }),
5041 MouseButton::Right => editor.update(cx, |editor, cx| {
5042 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
5043 }),
5044 MouseButton::Middle => editor.update(cx, |editor, cx| {
5045 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
5046 }),
5047 _ => {}
5048 };
5049 }
5050 }
5051 });
5052
5053 cx.on_mouse_event({
5054 let editor = self.editor.clone();
5055 let position_map = layout.position_map.clone();
5056 let text_hitbox = layout.text_hitbox.clone();
5057
5058 move |event: &MouseUpEvent, phase, cx| {
5059 if phase == DispatchPhase::Bubble {
5060 editor.update(cx, |editor, cx| {
5061 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
5062 });
5063 }
5064 }
5065 });
5066 cx.on_mouse_event({
5067 let position_map = layout.position_map.clone();
5068 let editor = self.editor.clone();
5069 let text_hitbox = layout.text_hitbox.clone();
5070 let gutter_hitbox = layout.gutter_hitbox.clone();
5071
5072 move |event: &MouseMoveEvent, phase, cx| {
5073 if phase == DispatchPhase::Bubble {
5074 editor.update(cx, |editor, cx| {
5075 if editor.hover_state.focused(cx) {
5076 return;
5077 }
5078 if event.pressed_button == Some(MouseButton::Left)
5079 || event.pressed_button == Some(MouseButton::Middle)
5080 {
5081 Self::mouse_dragged(
5082 editor,
5083 event,
5084 &position_map,
5085 text_hitbox.bounds,
5086 cx,
5087 )
5088 }
5089
5090 Self::mouse_moved(
5091 editor,
5092 event,
5093 &position_map,
5094 &text_hitbox,
5095 &gutter_hitbox,
5096 cx,
5097 )
5098 });
5099 }
5100 }
5101 });
5102 }
5103
5104 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5105 bounds.top_right().x - self.style.scrollbar_width
5106 }
5107
5108 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
5109 let style = &self.style;
5110 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5111 let layout = cx
5112 .text_system()
5113 .shape_line(
5114 SharedString::from(" ".repeat(column)),
5115 font_size,
5116 &[TextRun {
5117 len: column,
5118 font: style.text.font(),
5119 color: Hsla::default(),
5120 background_color: None,
5121 underline: None,
5122 strikethrough: None,
5123 }],
5124 )
5125 .unwrap();
5126
5127 layout.width
5128 }
5129
5130 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
5131 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5132 self.column_pixels(digit_count, cx)
5133 }
5134
5135 fn shape_line_number(
5136 &self,
5137 text: SharedString,
5138 color: Hsla,
5139 cx: &WindowContext,
5140 ) -> anyhow::Result<ShapedLine> {
5141 let run = TextRun {
5142 len: text.len(),
5143 font: self.style.text.font(),
5144 color,
5145 background_color: None,
5146 underline: None,
5147 strikethrough: None,
5148 };
5149 cx.text_system().shape_line(
5150 text,
5151 self.style.text.font_size.to_pixels(cx.rem_size()),
5152 &[run],
5153 )
5154 }
5155}
5156
5157fn header_jump_data(
5158 snapshot: &EditorSnapshot,
5159 block_row_start: DisplayRow,
5160 height: u32,
5161 for_excerpt: &ExcerptInfo,
5162) -> JumpData {
5163 let range = &for_excerpt.range;
5164 let buffer = &for_excerpt.buffer;
5165 let jump_anchor = range
5166 .primary
5167 .as_ref()
5168 .map_or(range.context.start, |primary| primary.start);
5169
5170 let excerpt_start = range.context.start;
5171 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5172 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
5173 0
5174 } else {
5175 let excerpt_start_row = language::ToPoint::to_point(&excerpt_start, buffer).row;
5176 jump_position.row - excerpt_start_row
5177 };
5178
5179 let line_offset_from_top = (block_row_start.0 + height + offset_from_excerpt_start)
5180 .saturating_sub(
5181 snapshot
5182 .scroll_anchor
5183 .scroll_position(&snapshot.display_snapshot)
5184 .y as u32,
5185 );
5186
5187 JumpData::MultiBufferPoint {
5188 excerpt_id: for_excerpt.id,
5189 anchor: jump_anchor,
5190 position: language::ToPoint::to_point(&jump_anchor, buffer),
5191 line_offset_from_top,
5192 }
5193}
5194
5195fn all_edits_insertions_or_deletions(
5196 edits: &Vec<(Range<Anchor>, String)>,
5197 snapshot: &MultiBufferSnapshot,
5198) -> bool {
5199 let mut all_insertions = true;
5200 let mut all_deletions = true;
5201
5202 for (range, new_text) in edits.iter() {
5203 let range_is_empty = range.to_offset(&snapshot).is_empty();
5204 let text_is_empty = new_text.is_empty();
5205
5206 if range_is_empty != text_is_empty {
5207 if range_is_empty {
5208 all_deletions = false;
5209 } else {
5210 all_insertions = false;
5211 }
5212 } else {
5213 return false;
5214 }
5215
5216 if !all_insertions && !all_deletions {
5217 return false;
5218 }
5219 }
5220 all_insertions || all_deletions
5221}
5222
5223#[allow(clippy::too_many_arguments)]
5224fn prepaint_gutter_button(
5225 button: IconButton,
5226 row: DisplayRow,
5227 line_height: Pixels,
5228 gutter_dimensions: &GutterDimensions,
5229 scroll_pixel_position: gpui::Point<Pixels>,
5230 gutter_hitbox: &Hitbox,
5231 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5232 cx: &mut WindowContext,
5233) -> AnyElement {
5234 let mut button = button.into_any_element();
5235 let available_space = size(
5236 AvailableSpace::MinContent,
5237 AvailableSpace::Definite(line_height),
5238 );
5239 let indicator_size = button.layout_as_root(available_space, cx);
5240
5241 let blame_width = gutter_dimensions.git_blame_entries_width;
5242 let gutter_width = rows_with_hunk_bounds
5243 .get(&row)
5244 .map(|bounds| bounds.size.width);
5245 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5246
5247 let mut x = left_offset;
5248 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5249 - indicator_size.width
5250 - left_offset;
5251 x += available_width / 2.;
5252
5253 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5254 y += (line_height - indicator_size.height) / 2.;
5255
5256 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
5257 button
5258}
5259
5260fn render_inline_blame_entry(
5261 blame: &gpui::Model<GitBlame>,
5262 blame_entry: BlameEntry,
5263 style: &EditorStyle,
5264 workspace: Option<WeakView<Workspace>>,
5265 cx: &mut WindowContext,
5266) -> AnyElement {
5267 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5268
5269 let author = blame_entry.author.as_deref().unwrap_or_default();
5270 let summary_enabled = ProjectSettings::get_global(cx)
5271 .git
5272 .show_inline_commit_summary();
5273
5274 let text = match blame_entry.summary.as_ref() {
5275 Some(summary) if summary_enabled => {
5276 format!("{}, {} - {}", author, relative_timestamp, summary)
5277 }
5278 _ => format!("{}, {}", author, relative_timestamp),
5279 };
5280
5281 let details = blame.read(cx).details_for_entry(&blame_entry);
5282
5283 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5284
5285 h_flex()
5286 .id("inline-blame")
5287 .w_full()
5288 .font_family(style.text.font().family)
5289 .text_color(cx.theme().status().hint)
5290 .line_height(style.text.line_height)
5291 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5292 .child(text)
5293 .gap_2()
5294 .hoverable_tooltip(move |_| tooltip.clone().into())
5295 .into_any()
5296}
5297
5298fn render_blame_entry(
5299 ix: usize,
5300 blame: &gpui::Model<GitBlame>,
5301 blame_entry: BlameEntry,
5302 style: &EditorStyle,
5303 last_used_color: &mut Option<(PlayerColor, Oid)>,
5304 editor: View<Editor>,
5305 cx: &mut WindowContext,
5306) -> AnyElement {
5307 let mut sha_color = cx
5308 .theme()
5309 .players()
5310 .color_for_participant(blame_entry.sha.into());
5311 // If the last color we used is the same as the one we get for this line, but
5312 // the commit SHAs are different, then we try again to get a different color.
5313 match *last_used_color {
5314 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5315 let index: u32 = blame_entry.sha.into();
5316 sha_color = cx.theme().players().color_for_participant(index + 1);
5317 }
5318 _ => {}
5319 };
5320 last_used_color.replace((sha_color, blame_entry.sha));
5321
5322 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5323
5324 let short_commit_id = blame_entry.sha.display_short();
5325
5326 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5327 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5328
5329 let details = blame.read(cx).details_for_entry(&blame_entry);
5330
5331 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5332
5333 let tooltip = cx.new_view(|_| {
5334 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
5335 });
5336
5337 h_flex()
5338 .w_full()
5339 .justify_between()
5340 .font_family(style.text.font().family)
5341 .line_height(style.text.line_height)
5342 .id(("blame", ix))
5343 .text_color(cx.theme().status().hint)
5344 .pr_2()
5345 .gap_2()
5346 .child(
5347 h_flex()
5348 .items_center()
5349 .gap_2()
5350 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5351 .child(name),
5352 )
5353 .child(relative_timestamp)
5354 .on_mouse_down(MouseButton::Right, {
5355 let blame_entry = blame_entry.clone();
5356 let details = details.clone();
5357 move |event, cx| {
5358 deploy_blame_entry_context_menu(
5359 &blame_entry,
5360 details.as_ref(),
5361 editor.clone(),
5362 event.position,
5363 cx,
5364 );
5365 }
5366 })
5367 .hover(|style| style.bg(cx.theme().colors().element_hover))
5368 .when_some(
5369 details.and_then(|details| details.permalink),
5370 |this, url| {
5371 let url = url.clone();
5372 this.cursor_pointer().on_click(move |_, cx| {
5373 cx.stop_propagation();
5374 cx.open_url(url.as_str())
5375 })
5376 },
5377 )
5378 .hoverable_tooltip(move |_| tooltip.clone().into())
5379 .into_any()
5380}
5381
5382fn deploy_blame_entry_context_menu(
5383 blame_entry: &BlameEntry,
5384 details: Option<&CommitDetails>,
5385 editor: View<Editor>,
5386 position: gpui::Point<Pixels>,
5387 cx: &mut WindowContext,
5388) {
5389 let context_menu = ContextMenu::build(cx, move |menu, _| {
5390 let sha = format!("{}", blame_entry.sha);
5391 menu.on_blur_subscription(Subscription::new(|| {}))
5392 .entry("Copy commit SHA", None, move |cx| {
5393 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5394 })
5395 .when_some(
5396 details.and_then(|details| details.permalink.clone()),
5397 |this, url| this.entry("Open permalink", None, move |cx| cx.open_url(url.as_str())),
5398 )
5399 });
5400
5401 editor.update(cx, move |editor, cx| {
5402 editor.mouse_context_menu = Some(MouseContextMenu::new(
5403 MenuPosition::PinnedToScreen(position),
5404 context_menu,
5405 cx,
5406 ));
5407 cx.notify();
5408 });
5409}
5410
5411#[derive(Debug)]
5412pub(crate) struct LineWithInvisibles {
5413 fragments: SmallVec<[LineFragment; 1]>,
5414 invisibles: Vec<Invisible>,
5415 len: usize,
5416 width: Pixels,
5417 font_size: Pixels,
5418}
5419
5420#[allow(clippy::large_enum_variant)]
5421enum LineFragment {
5422 Text(ShapedLine),
5423 Element {
5424 element: Option<AnyElement>,
5425 size: Size<Pixels>,
5426 len: usize,
5427 },
5428}
5429
5430impl fmt::Debug for LineFragment {
5431 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5432 match self {
5433 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5434 LineFragment::Element { size, len, .. } => f
5435 .debug_struct("Element")
5436 .field("size", size)
5437 .field("len", len)
5438 .finish(),
5439 }
5440 }
5441}
5442
5443impl LineWithInvisibles {
5444 #[allow(clippy::too_many_arguments)]
5445 fn from_chunks<'a>(
5446 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5447 editor_style: &EditorStyle,
5448 max_line_len: usize,
5449 max_line_count: usize,
5450 editor_mode: EditorMode,
5451 text_width: Pixels,
5452 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5453 cx: &mut WindowContext,
5454 ) -> Vec<Self> {
5455 let text_style = &editor_style.text;
5456 let mut layouts = Vec::with_capacity(max_line_count);
5457 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5458 let mut line = String::new();
5459 let mut invisibles = Vec::new();
5460 let mut width = Pixels::ZERO;
5461 let mut len = 0;
5462 let mut styles = Vec::new();
5463 let mut non_whitespace_added = false;
5464 let mut row = 0;
5465 let mut line_exceeded_max_len = false;
5466 let font_size = text_style.font_size.to_pixels(cx.rem_size());
5467
5468 let ellipsis = SharedString::from("⋯");
5469
5470 for highlighted_chunk in chunks.chain([HighlightedChunk {
5471 text: "\n",
5472 style: None,
5473 is_tab: false,
5474 replacement: None,
5475 }]) {
5476 if let Some(replacement) = highlighted_chunk.replacement {
5477 if !line.is_empty() {
5478 let shaped_line = cx
5479 .text_system()
5480 .shape_line(line.clone().into(), font_size, &styles)
5481 .unwrap();
5482 width += shaped_line.width;
5483 len += shaped_line.len;
5484 fragments.push(LineFragment::Text(shaped_line));
5485 line.clear();
5486 styles.clear();
5487 }
5488
5489 match replacement {
5490 ChunkReplacement::Renderer(renderer) => {
5491 let available_width = if renderer.constrain_width {
5492 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5493 ellipsis.clone()
5494 } else {
5495 SharedString::from(Arc::from(highlighted_chunk.text))
5496 };
5497 let shaped_line = cx
5498 .text_system()
5499 .shape_line(
5500 chunk,
5501 font_size,
5502 &[text_style.to_run(highlighted_chunk.text.len())],
5503 )
5504 .unwrap();
5505 AvailableSpace::Definite(shaped_line.width)
5506 } else {
5507 AvailableSpace::MinContent
5508 };
5509
5510 let mut element = (renderer.render)(&mut ChunkRendererContext {
5511 context: cx,
5512 max_width: text_width,
5513 });
5514 let line_height = text_style.line_height_in_pixels(cx.rem_size());
5515 let size = element.layout_as_root(
5516 size(available_width, AvailableSpace::Definite(line_height)),
5517 cx,
5518 );
5519
5520 width += size.width;
5521 len += highlighted_chunk.text.len();
5522 fragments.push(LineFragment::Element {
5523 element: Some(element),
5524 size,
5525 len: highlighted_chunk.text.len(),
5526 });
5527 }
5528 ChunkReplacement::Str(x) => {
5529 let text_style = if let Some(style) = highlighted_chunk.style {
5530 Cow::Owned(text_style.clone().highlight(style))
5531 } else {
5532 Cow::Borrowed(text_style)
5533 };
5534
5535 let run = TextRun {
5536 len: x.len(),
5537 font: text_style.font(),
5538 color: text_style.color,
5539 background_color: text_style.background_color,
5540 underline: text_style.underline,
5541 strikethrough: text_style.strikethrough,
5542 };
5543 let line_layout = cx
5544 .text_system()
5545 .shape_line(x, font_size, &[run])
5546 .unwrap()
5547 .with_len(highlighted_chunk.text.len());
5548
5549 width += line_layout.width;
5550 len += highlighted_chunk.text.len();
5551 fragments.push(LineFragment::Text(line_layout))
5552 }
5553 }
5554 } else {
5555 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
5556 if ix > 0 {
5557 let shaped_line = cx
5558 .text_system()
5559 .shape_line(line.clone().into(), font_size, &styles)
5560 .unwrap();
5561 width += shaped_line.width;
5562 len += shaped_line.len;
5563 fragments.push(LineFragment::Text(shaped_line));
5564 layouts.push(Self {
5565 width: mem::take(&mut width),
5566 len: mem::take(&mut len),
5567 fragments: mem::take(&mut fragments),
5568 invisibles: std::mem::take(&mut invisibles),
5569 font_size,
5570 });
5571
5572 line.clear();
5573 styles.clear();
5574 row += 1;
5575 line_exceeded_max_len = false;
5576 non_whitespace_added = false;
5577 if row == max_line_count {
5578 return layouts;
5579 }
5580 }
5581
5582 if !line_chunk.is_empty() && !line_exceeded_max_len {
5583 let text_style = if let Some(style) = highlighted_chunk.style {
5584 Cow::Owned(text_style.clone().highlight(style))
5585 } else {
5586 Cow::Borrowed(text_style)
5587 };
5588
5589 if line.len() + line_chunk.len() > max_line_len {
5590 let mut chunk_len = max_line_len - line.len();
5591 while !line_chunk.is_char_boundary(chunk_len) {
5592 chunk_len -= 1;
5593 }
5594 line_chunk = &line_chunk[..chunk_len];
5595 line_exceeded_max_len = true;
5596 }
5597
5598 styles.push(TextRun {
5599 len: line_chunk.len(),
5600 font: text_style.font(),
5601 color: text_style.color,
5602 background_color: text_style.background_color,
5603 underline: text_style.underline,
5604 strikethrough: text_style.strikethrough,
5605 });
5606
5607 if editor_mode == EditorMode::Full {
5608 // Line wrap pads its contents with fake whitespaces,
5609 // avoid printing them
5610 let is_soft_wrapped = is_row_soft_wrapped(row);
5611 if highlighted_chunk.is_tab {
5612 if non_whitespace_added || !is_soft_wrapped {
5613 invisibles.push(Invisible::Tab {
5614 line_start_offset: line.len(),
5615 line_end_offset: line.len() + line_chunk.len(),
5616 });
5617 }
5618 } else {
5619 invisibles.extend(line_chunk.char_indices().filter_map(
5620 |(index, c)| {
5621 let is_whitespace = c.is_whitespace();
5622 non_whitespace_added |= !is_whitespace;
5623 if is_whitespace
5624 && (non_whitespace_added || !is_soft_wrapped)
5625 {
5626 Some(Invisible::Whitespace {
5627 line_offset: line.len() + index,
5628 })
5629 } else {
5630 None
5631 }
5632 },
5633 ))
5634 }
5635 }
5636
5637 line.push_str(line_chunk);
5638 }
5639 }
5640 }
5641 }
5642
5643 layouts
5644 }
5645
5646 fn prepaint(
5647 &mut self,
5648 line_height: Pixels,
5649 scroll_pixel_position: gpui::Point<Pixels>,
5650 row: DisplayRow,
5651 content_origin: gpui::Point<Pixels>,
5652 line_elements: &mut SmallVec<[AnyElement; 1]>,
5653 cx: &mut WindowContext,
5654 ) {
5655 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
5656 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
5657 for fragment in &mut self.fragments {
5658 match fragment {
5659 LineFragment::Text(line) => {
5660 fragment_origin.x += line.width;
5661 }
5662 LineFragment::Element { element, size, .. } => {
5663 let mut element = element
5664 .take()
5665 .expect("you can't prepaint LineWithInvisibles twice");
5666
5667 // Center the element vertically within the line.
5668 let mut element_origin = fragment_origin;
5669 element_origin.y += (line_height - size.height) / 2.;
5670 element.prepaint_at(element_origin, cx);
5671 line_elements.push(element);
5672
5673 fragment_origin.x += size.width;
5674 }
5675 }
5676 }
5677 }
5678
5679 fn draw(
5680 &self,
5681 layout: &EditorLayout,
5682 row: DisplayRow,
5683 content_origin: gpui::Point<Pixels>,
5684 whitespace_setting: ShowWhitespaceSetting,
5685 selection_ranges: &[Range<DisplayPoint>],
5686 cx: &mut WindowContext,
5687 ) {
5688 let line_height = layout.position_map.line_height;
5689 let line_y = line_height
5690 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
5691
5692 let mut fragment_origin =
5693 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
5694
5695 for fragment in &self.fragments {
5696 match fragment {
5697 LineFragment::Text(line) => {
5698 line.paint(fragment_origin, line_height, cx).log_err();
5699 fragment_origin.x += line.width;
5700 }
5701 LineFragment::Element { size, .. } => {
5702 fragment_origin.x += size.width;
5703 }
5704 }
5705 }
5706
5707 self.draw_invisibles(
5708 selection_ranges,
5709 layout,
5710 content_origin,
5711 line_y,
5712 row,
5713 line_height,
5714 whitespace_setting,
5715 cx,
5716 );
5717 }
5718
5719 #[allow(clippy::too_many_arguments)]
5720 fn draw_invisibles(
5721 &self,
5722 selection_ranges: &[Range<DisplayPoint>],
5723 layout: &EditorLayout,
5724 content_origin: gpui::Point<Pixels>,
5725 line_y: Pixels,
5726 row: DisplayRow,
5727 line_height: Pixels,
5728 whitespace_setting: ShowWhitespaceSetting,
5729 cx: &mut WindowContext,
5730 ) {
5731 let extract_whitespace_info = |invisible: &Invisible| {
5732 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
5733 Invisible::Tab {
5734 line_start_offset,
5735 line_end_offset,
5736 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
5737 Invisible::Whitespace { line_offset } => {
5738 (*line_offset, line_offset + 1, &layout.space_invisible)
5739 }
5740 };
5741
5742 let x_offset = self.x_for_index(token_offset);
5743 let invisible_offset =
5744 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
5745 let origin = content_origin
5746 + gpui::point(
5747 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
5748 line_y,
5749 );
5750
5751 (
5752 [token_offset, token_end_offset],
5753 Box::new(move |cx: &mut WindowContext| {
5754 invisible_symbol.paint(origin, line_height, cx).log_err();
5755 }),
5756 )
5757 };
5758
5759 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
5760 match whitespace_setting {
5761 ShowWhitespaceSetting::None => (),
5762 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(cx)),
5763 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
5764 let invisible_point = DisplayPoint::new(row, start as u32);
5765 if !selection_ranges
5766 .iter()
5767 .any(|region| region.start <= invisible_point && invisible_point < region.end)
5768 {
5769 return;
5770 }
5771
5772 paint(cx);
5773 }),
5774
5775 // For a whitespace to be on a boundary, any of the following conditions need to be met:
5776 // - It is a tab
5777 // - It is adjacent to an edge (start or end)
5778 // - It is adjacent to a whitespace (left or right)
5779 ShowWhitespaceSetting::Boundary => {
5780 // 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
5781 // the above cases.
5782 // Note: We zip in the original `invisibles` to check for tab equality
5783 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut WindowContext)>)> = None;
5784 for (([start, end], paint), invisible) in
5785 invisible_iter.zip_eq(self.invisibles.iter())
5786 {
5787 let should_render = match (&last_seen, invisible) {
5788 (_, Invisible::Tab { .. }) => true,
5789 (Some((_, last_end, _)), _) => *last_end == start,
5790 _ => false,
5791 };
5792
5793 if should_render || start == 0 || end == self.len {
5794 paint(cx);
5795
5796 // Since we are scanning from the left, we will skip over the first available whitespace that is part
5797 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
5798 if let Some((should_render_last, last_end, paint_last)) = last_seen {
5799 // Note that we need to make sure that the last one is actually adjacent
5800 if !should_render_last && last_end == start {
5801 paint_last(cx);
5802 }
5803 }
5804 }
5805
5806 // Manually render anything within a selection
5807 let invisible_point = DisplayPoint::new(row, start as u32);
5808 if selection_ranges.iter().any(|region| {
5809 region.start <= invisible_point && invisible_point < region.end
5810 }) {
5811 paint(cx);
5812 }
5813
5814 last_seen = Some((should_render, end, paint));
5815 }
5816 }
5817 }
5818 }
5819
5820 pub fn x_for_index(&self, index: usize) -> Pixels {
5821 let mut fragment_start_x = Pixels::ZERO;
5822 let mut fragment_start_index = 0;
5823
5824 for fragment in &self.fragments {
5825 match fragment {
5826 LineFragment::Text(shaped_line) => {
5827 let fragment_end_index = fragment_start_index + shaped_line.len;
5828 if index < fragment_end_index {
5829 return fragment_start_x
5830 + shaped_line.x_for_index(index - fragment_start_index);
5831 }
5832 fragment_start_x += shaped_line.width;
5833 fragment_start_index = fragment_end_index;
5834 }
5835 LineFragment::Element { len, size, .. } => {
5836 let fragment_end_index = fragment_start_index + len;
5837 if index < fragment_end_index {
5838 return fragment_start_x;
5839 }
5840 fragment_start_x += size.width;
5841 fragment_start_index = fragment_end_index;
5842 }
5843 }
5844 }
5845
5846 fragment_start_x
5847 }
5848
5849 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
5850 let mut fragment_start_x = Pixels::ZERO;
5851 let mut fragment_start_index = 0;
5852
5853 for fragment in &self.fragments {
5854 match fragment {
5855 LineFragment::Text(shaped_line) => {
5856 let fragment_end_x = fragment_start_x + shaped_line.width;
5857 if x < fragment_end_x {
5858 return Some(
5859 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
5860 );
5861 }
5862 fragment_start_x = fragment_end_x;
5863 fragment_start_index += shaped_line.len;
5864 }
5865 LineFragment::Element { len, size, .. } => {
5866 let fragment_end_x = fragment_start_x + size.width;
5867 if x < fragment_end_x {
5868 return Some(fragment_start_index);
5869 }
5870 fragment_start_index += len;
5871 fragment_start_x = fragment_end_x;
5872 }
5873 }
5874 }
5875
5876 None
5877 }
5878
5879 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
5880 let mut fragment_start_index = 0;
5881
5882 for fragment in &self.fragments {
5883 match fragment {
5884 LineFragment::Text(shaped_line) => {
5885 let fragment_end_index = fragment_start_index + shaped_line.len;
5886 if index < fragment_end_index {
5887 return shaped_line.font_id_for_index(index - fragment_start_index);
5888 }
5889 fragment_start_index = fragment_end_index;
5890 }
5891 LineFragment::Element { len, .. } => {
5892 let fragment_end_index = fragment_start_index + len;
5893 if index < fragment_end_index {
5894 return None;
5895 }
5896 fragment_start_index = fragment_end_index;
5897 }
5898 }
5899 }
5900
5901 None
5902 }
5903}
5904
5905#[derive(Debug, Clone, Copy, PartialEq, Eq)]
5906enum Invisible {
5907 /// A tab character
5908 ///
5909 /// A tab character is internally represented by spaces (configured by the user's tab width)
5910 /// aligned to the nearest column, so it's necessary to store the start and end offset for
5911 /// adjacency checks.
5912 Tab {
5913 line_start_offset: usize,
5914 line_end_offset: usize,
5915 },
5916 Whitespace {
5917 line_offset: usize,
5918 },
5919}
5920
5921impl EditorElement {
5922 /// Returns the rem size to use when rendering the [`EditorElement`].
5923 ///
5924 /// This allows UI elements to scale based on the `buffer_font_size`.
5925 fn rem_size(&self, cx: &WindowContext) -> Option<Pixels> {
5926 match self.editor.read(cx).mode {
5927 EditorMode::Full => {
5928 let buffer_font_size = self.style.text.font_size;
5929 match buffer_font_size {
5930 AbsoluteLength::Pixels(pixels) => {
5931 let rem_size_scale = {
5932 // Our default UI font size is 14px on a 16px base scale.
5933 // This means the default UI font size is 0.875rems.
5934 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
5935
5936 // We then determine the delta between a single rem and the default font
5937 // size scale.
5938 let default_font_size_delta = 1. - default_font_size_scale;
5939
5940 // Finally, we add this delta to 1rem to get the scale factor that
5941 // should be used to scale up the UI.
5942 1. + default_font_size_delta
5943 };
5944
5945 Some(pixels * rem_size_scale)
5946 }
5947 AbsoluteLength::Rems(rems) => {
5948 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
5949 }
5950 }
5951 }
5952 // We currently use single-line and auto-height editors in UI contexts,
5953 // so we don't want to scale everything with the buffer font size, as it
5954 // ends up looking off.
5955 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
5956 }
5957 }
5958}
5959
5960impl Element for EditorElement {
5961 type RequestLayoutState = ();
5962 type PrepaintState = EditorLayout;
5963
5964 fn id(&self) -> Option<ElementId> {
5965 None
5966 }
5967
5968 fn request_layout(
5969 &mut self,
5970 _: Option<&GlobalElementId>,
5971 cx: &mut WindowContext,
5972 ) -> (gpui::LayoutId, ()) {
5973 let rem_size = self.rem_size(cx);
5974 cx.with_rem_size(rem_size, |cx| {
5975 self.editor.update(cx, |editor, cx| {
5976 editor.set_style(self.style.clone(), cx);
5977
5978 let layout_id = match editor.mode {
5979 EditorMode::SingleLine { auto_width } => {
5980 let rem_size = cx.rem_size();
5981
5982 let height = self.style.text.line_height_in_pixels(rem_size);
5983 if auto_width {
5984 let editor_handle = cx.view().clone();
5985 let style = self.style.clone();
5986 cx.request_measured_layout(Style::default(), move |_, _, cx| {
5987 let editor_snapshot =
5988 editor_handle.update(cx, |editor, cx| editor.snapshot(cx));
5989 let line = Self::layout_lines(
5990 DisplayRow(0)..DisplayRow(1),
5991 &editor_snapshot,
5992 &style,
5993 px(f32::MAX),
5994 |_| false, // Single lines never soft wrap
5995 cx,
5996 )
5997 .pop()
5998 .unwrap();
5999
6000 let font_id = cx.text_system().resolve_font(&style.text.font());
6001 let font_size = style.text.font_size.to_pixels(cx.rem_size());
6002 let em_width = cx
6003 .text_system()
6004 .typographic_bounds(font_id, font_size, 'm')
6005 .unwrap()
6006 .size
6007 .width;
6008
6009 size(line.width + em_width, height)
6010 })
6011 } else {
6012 let mut style = Style::default();
6013 style.size.height = height.into();
6014 style.size.width = relative(1.).into();
6015 cx.request_layout(style, None)
6016 }
6017 }
6018 EditorMode::AutoHeight { max_lines } => {
6019 let editor_handle = cx.view().clone();
6020 let max_line_number_width =
6021 self.max_line_number_width(&editor.snapshot(cx), cx);
6022 cx.request_measured_layout(
6023 Style::default(),
6024 move |known_dimensions, available_space, cx| {
6025 editor_handle
6026 .update(cx, |editor, cx| {
6027 compute_auto_height_layout(
6028 editor,
6029 max_lines,
6030 max_line_number_width,
6031 known_dimensions,
6032 available_space.width,
6033 cx,
6034 )
6035 })
6036 .unwrap_or_default()
6037 },
6038 )
6039 }
6040 EditorMode::Full => {
6041 let mut style = Style::default();
6042 style.size.width = relative(1.).into();
6043 style.size.height = relative(1.).into();
6044 cx.request_layout(style, None)
6045 }
6046 };
6047
6048 (layout_id, ())
6049 })
6050 })
6051 }
6052
6053 fn prepaint(
6054 &mut self,
6055 _: Option<&GlobalElementId>,
6056 bounds: Bounds<Pixels>,
6057 _: &mut Self::RequestLayoutState,
6058 cx: &mut WindowContext,
6059 ) -> Self::PrepaintState {
6060 let text_style = TextStyleRefinement {
6061 font_size: Some(self.style.text.font_size),
6062 line_height: Some(self.style.text.line_height),
6063 ..Default::default()
6064 };
6065 let focus_handle = self.editor.focus_handle(cx);
6066 cx.set_view_id(self.editor.entity_id());
6067 cx.set_focus_handle(&focus_handle);
6068
6069 let rem_size = self.rem_size(cx);
6070 cx.with_rem_size(rem_size, |cx| {
6071 cx.with_text_style(Some(text_style), |cx| {
6072 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
6073 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
6074 let style = self.style.clone();
6075
6076 let font_id = cx.text_system().resolve_font(&style.text.font());
6077 let font_size = style.text.font_size.to_pixels(cx.rem_size());
6078 let line_height = style.text.line_height_in_pixels(cx.rem_size());
6079 let em_width = cx
6080 .text_system()
6081 .typographic_bounds(font_id, font_size, 'm')
6082 .unwrap()
6083 .size
6084 .width;
6085 let em_advance = cx
6086 .text_system()
6087 .advance(font_id, font_size, 'm')
6088 .unwrap()
6089 .width;
6090
6091 let letter_size = size(em_width, line_height);
6092
6093 let gutter_dimensions = snapshot.gutter_dimensions(
6094 font_id,
6095 font_size,
6096 em_width,
6097 em_advance,
6098 self.max_line_number_width(&snapshot, cx),
6099 cx,
6100 );
6101 let text_width = bounds.size.width - gutter_dimensions.width;
6102
6103 let editor_width = text_width - gutter_dimensions.margin - em_width;
6104
6105 snapshot = self.editor.update(cx, |editor, cx| {
6106 editor.last_bounds = Some(bounds);
6107 editor.gutter_dimensions = gutter_dimensions;
6108 editor.set_visible_line_count(bounds.size.height / line_height, cx);
6109
6110 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6111 snapshot
6112 } else {
6113 let wrap_width = match editor.soft_wrap_mode(cx) {
6114 SoftWrap::GitDiff => None,
6115 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6116 SoftWrap::EditorWidth => Some(editor_width),
6117 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6118 SoftWrap::Bounded(column) => {
6119 Some(editor_width.min(column as f32 * em_advance))
6120 }
6121 };
6122
6123 if editor.set_wrap_width(wrap_width, cx) {
6124 editor.snapshot(cx)
6125 } else {
6126 snapshot
6127 }
6128 }
6129 });
6130
6131 let wrap_guides = self
6132 .editor
6133 .read(cx)
6134 .wrap_guides(cx)
6135 .iter()
6136 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
6137 .collect::<SmallVec<[_; 2]>>();
6138
6139 let hitbox = cx.insert_hitbox(bounds, false);
6140 let gutter_hitbox =
6141 cx.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6142 let text_hitbox = cx.insert_hitbox(
6143 Bounds {
6144 origin: gutter_hitbox.top_right(),
6145 size: size(text_width, bounds.size.height),
6146 },
6147 false,
6148 );
6149 // Offset the content_bounds from the text_bounds by the gutter margin (which
6150 // is roughly half a character wide) to make hit testing work more like how we want.
6151 let content_origin =
6152 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6153
6154 let scrollbar_bounds =
6155 Bounds::from_corners(content_origin, bounds.bottom_right());
6156
6157 let height_in_lines = scrollbar_bounds.size.height / line_height;
6158
6159 // NOTE: The max row number in the current file, minus one
6160 let max_row = snapshot.max_point().row().as_f32();
6161
6162 // NOTE: The max scroll position for the top of the window
6163 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6164 (max_row - height_in_lines + 1.).max(0.)
6165 } else {
6166 let settings = EditorSettings::get_global(cx);
6167 match settings.scroll_beyond_last_line {
6168 ScrollBeyondLastLine::OnePage => max_row,
6169 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6170 ScrollBeyondLastLine::VerticalScrollMargin => {
6171 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6172 .max(0.)
6173 }
6174 }
6175 };
6176
6177 // TODO: Autoscrolling for both axes
6178 let mut autoscroll_request = None;
6179 let mut autoscroll_containing_element = false;
6180 let mut autoscroll_horizontally = false;
6181 self.editor.update(cx, |editor, cx| {
6182 autoscroll_request = editor.autoscroll_request();
6183 autoscroll_containing_element =
6184 autoscroll_request.is_some() || editor.has_pending_selection();
6185 // TODO: Is this horizontal or vertical?!
6186 autoscroll_horizontally =
6187 editor.autoscroll_vertically(bounds, line_height, max_scroll_top, cx);
6188 snapshot = editor.snapshot(cx);
6189 });
6190
6191 let mut scroll_position = snapshot.scroll_position();
6192 // The scroll position is a fractional point, the whole number of which represents
6193 // the top of the window in terms of display rows.
6194 let start_row = DisplayRow(scroll_position.y as u32);
6195 let max_row = snapshot.max_point().row();
6196 let end_row = cmp::min(
6197 (scroll_position.y + height_in_lines).ceil() as u32,
6198 max_row.next_row().0,
6199 );
6200 let end_row = DisplayRow(end_row);
6201
6202 let buffer_rows = snapshot
6203 .buffer_rows(start_row)
6204 .take((start_row..end_row).len())
6205 .collect::<Vec<_>>();
6206 let is_row_soft_wrapped =
6207 |row| buffer_rows.get(row).copied().flatten().is_none();
6208
6209 let start_anchor = if start_row == Default::default() {
6210 Anchor::min()
6211 } else {
6212 snapshot.buffer_snapshot.anchor_before(
6213 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6214 )
6215 };
6216 let end_anchor = if end_row > max_row {
6217 Anchor::max()
6218 } else {
6219 snapshot.buffer_snapshot.anchor_before(
6220 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6221 )
6222 };
6223
6224 let highlighted_rows = self
6225 .editor
6226 .update(cx, |editor, cx| editor.highlighted_display_rows(cx));
6227 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6228 start_anchor..end_anchor,
6229 &snapshot.display_snapshot,
6230 cx.theme().colors(),
6231 );
6232 let highlighted_gutter_ranges =
6233 self.editor.read(cx).gutter_highlights_in_range(
6234 start_anchor..end_anchor,
6235 &snapshot.display_snapshot,
6236 cx,
6237 );
6238
6239 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6240 start_anchor..end_anchor,
6241 &snapshot.display_snapshot,
6242 cx,
6243 );
6244
6245 let (local_selections, selected_buffer_ids): (
6246 Vec<Selection<Point>>,
6247 Vec<BufferId>,
6248 ) = self.editor.update(cx, |editor, cx| {
6249 let all_selections = editor.selections.all::<Point>(cx);
6250 let selected_buffer_ids = if editor.is_singleton(cx) {
6251 Vec::new()
6252 } else {
6253 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6254
6255 for selection in all_selections {
6256 for buffer_id in snapshot
6257 .buffer_snapshot
6258 .buffer_ids_in_selected_rows(selection)
6259 {
6260 if selected_buffer_ids.last() != Some(&buffer_id) {
6261 selected_buffer_ids.push(buffer_id);
6262 }
6263 }
6264 }
6265
6266 selected_buffer_ids
6267 };
6268
6269 let mut selections = editor
6270 .selections
6271 .disjoint_in_range(start_anchor..end_anchor, cx);
6272 selections.extend(editor.selections.pending(cx));
6273
6274 (selections, selected_buffer_ids)
6275 });
6276
6277 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6278 start_anchor,
6279 end_anchor,
6280 &local_selections,
6281 &snapshot,
6282 start_row,
6283 end_row,
6284 cx,
6285 );
6286
6287 let line_numbers = self.layout_line_numbers(
6288 Some(&gutter_hitbox),
6289 gutter_dimensions,
6290 line_height,
6291 scroll_position,
6292 start_row..end_row,
6293 buffer_rows.iter().copied(),
6294 newest_selection_head,
6295 &snapshot,
6296 cx,
6297 );
6298
6299 let mut crease_toggles = cx.with_element_namespace("crease_toggles", |cx| {
6300 self.layout_crease_toggles(
6301 start_row..end_row,
6302 buffer_rows.iter().copied(),
6303 &active_rows,
6304 &snapshot,
6305 cx,
6306 )
6307 });
6308 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
6309 self.layout_crease_trailers(buffer_rows.iter().copied(), &snapshot, cx)
6310 });
6311
6312 let display_hunks = self.layout_gutter_git_hunks(
6313 line_height,
6314 &gutter_hitbox,
6315 start_row..end_row,
6316 start_anchor..end_anchor,
6317 &snapshot,
6318 cx,
6319 );
6320
6321 let mut max_visible_line_width = Pixels::ZERO;
6322 let mut line_layouts = Self::layout_lines(
6323 start_row..end_row,
6324 &snapshot,
6325 &self.style,
6326 editor_width,
6327 is_row_soft_wrapped,
6328 cx,
6329 );
6330 for line_with_invisibles in &line_layouts {
6331 if line_with_invisibles.width > max_visible_line_width {
6332 max_visible_line_width = line_with_invisibles.width;
6333 }
6334 }
6335
6336 let longest_line_width = layout_line(
6337 snapshot.longest_row(),
6338 &snapshot,
6339 &style,
6340 editor_width,
6341 is_row_soft_wrapped,
6342 cx,
6343 )
6344 .width;
6345
6346 let scrollbar_range_data = ScrollbarRangeData::new(
6347 scrollbar_bounds,
6348 letter_size,
6349 &snapshot,
6350 longest_line_width,
6351 &style,
6352 cx,
6353 );
6354
6355 let scroll_range_bounds = scrollbar_range_data.scroll_range;
6356 let mut scroll_width = scroll_range_bounds.size.width;
6357
6358 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6359 snapshot.sticky_header_excerpt(start_row)
6360 } else {
6361 None
6362 };
6363 let sticky_header_excerpt_id =
6364 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6365
6366 let blocks = cx.with_element_namespace("blocks", |cx| {
6367 self.render_blocks(
6368 start_row..end_row,
6369 &snapshot,
6370 &hitbox,
6371 &text_hitbox,
6372 editor_width,
6373 &mut scroll_width,
6374 &gutter_dimensions,
6375 em_width,
6376 gutter_dimensions.full_width(),
6377 line_height,
6378 &line_layouts,
6379 &local_selections,
6380 &selected_buffer_ids,
6381 is_row_soft_wrapped,
6382 sticky_header_excerpt_id,
6383 cx,
6384 )
6385 });
6386 let mut blocks = match blocks {
6387 Ok(blocks) => blocks,
6388 Err(resized_blocks) => {
6389 self.editor.update(cx, |editor, cx| {
6390 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6391 });
6392 return self.prepaint(None, bounds, &mut (), cx);
6393 }
6394 };
6395
6396 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6397 cx.with_element_namespace("blocks", |cx| {
6398 self.layout_sticky_buffer_header(
6399 sticky_header_excerpt,
6400 scroll_position.y,
6401 line_height,
6402 &snapshot,
6403 &hitbox,
6404 &selected_buffer_ids,
6405 cx,
6406 )
6407 })
6408 });
6409
6410 let start_buffer_row =
6411 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
6412 let end_buffer_row =
6413 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
6414
6415 let scroll_max = point(
6416 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6417 max_row.as_f32(),
6418 );
6419
6420 self.editor.update(cx, |editor, cx| {
6421 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6422
6423 let autoscrolled = if autoscroll_horizontally {
6424 editor.autoscroll_horizontally(
6425 start_row,
6426 text_hitbox.size.width,
6427 scroll_width,
6428 em_width,
6429 &line_layouts,
6430 cx,
6431 )
6432 } else {
6433 false
6434 };
6435
6436 if clamped || autoscrolled {
6437 snapshot = editor.snapshot(cx);
6438 scroll_position = snapshot.scroll_position();
6439 }
6440 });
6441
6442 let scroll_pixel_position = point(
6443 scroll_position.x * em_width,
6444 scroll_position.y * line_height,
6445 );
6446
6447 let indent_guides = self.layout_indent_guides(
6448 content_origin,
6449 text_hitbox.origin,
6450 start_buffer_row..end_buffer_row,
6451 scroll_pixel_position,
6452 line_height,
6453 &snapshot,
6454 cx,
6455 );
6456
6457 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
6458 self.prepaint_crease_trailers(
6459 crease_trailers,
6460 &line_layouts,
6461 line_height,
6462 content_origin,
6463 scroll_pixel_position,
6464 em_width,
6465 cx,
6466 )
6467 });
6468
6469 let mut inline_blame = None;
6470 if let Some(newest_selection_head) = newest_selection_head {
6471 let display_row = newest_selection_head.row();
6472 if (start_row..end_row).contains(&display_row) {
6473 let line_ix = display_row.minus(start_row) as usize;
6474 let line_layout = &line_layouts[line_ix];
6475 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
6476 inline_blame = self.layout_inline_blame(
6477 display_row,
6478 &snapshot.display_snapshot,
6479 line_layout,
6480 crease_trailer_layout,
6481 em_width,
6482 content_origin,
6483 scroll_pixel_position,
6484 line_height,
6485 cx,
6486 );
6487 }
6488 }
6489
6490 let blamed_display_rows = self.layout_blame_entries(
6491 buffer_rows.into_iter(),
6492 em_width,
6493 scroll_position,
6494 line_height,
6495 &gutter_hitbox,
6496 gutter_dimensions.git_blame_entries_width,
6497 cx,
6498 );
6499
6500 let scroll_max = point(
6501 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6502 max_scroll_top,
6503 );
6504
6505 self.editor.update(cx, |editor, cx| {
6506 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6507
6508 let autoscrolled = if autoscroll_horizontally {
6509 editor.autoscroll_horizontally(
6510 start_row,
6511 text_hitbox.size.width,
6512 scroll_width,
6513 em_width,
6514 &line_layouts,
6515 cx,
6516 )
6517 } else {
6518 false
6519 };
6520
6521 if clamped || autoscrolled {
6522 snapshot = editor.snapshot(cx);
6523 scroll_position = snapshot.scroll_position();
6524 }
6525 });
6526
6527 let line_elements = self.prepaint_lines(
6528 start_row,
6529 &mut line_layouts,
6530 line_height,
6531 scroll_pixel_position,
6532 content_origin,
6533 cx,
6534 );
6535
6536 let mut block_start_rows = HashSet::default();
6537
6538 cx.with_element_namespace("blocks", |cx| {
6539 self.layout_blocks(
6540 &mut blocks,
6541 &mut block_start_rows,
6542 &hitbox,
6543 line_height,
6544 scroll_pixel_position,
6545 cx,
6546 );
6547 });
6548
6549 let cursors = self.collect_cursors(&snapshot, cx);
6550 let visible_row_range = start_row..end_row;
6551 let non_visible_cursors = cursors
6552 .iter()
6553 .any(move |c| !visible_row_range.contains(&c.0.row()));
6554
6555 let visible_cursors = self.layout_visible_cursors(
6556 &snapshot,
6557 &selections,
6558 &block_start_rows,
6559 start_row..end_row,
6560 &line_layouts,
6561 &text_hitbox,
6562 content_origin,
6563 scroll_position,
6564 scroll_pixel_position,
6565 line_height,
6566 em_width,
6567 em_advance,
6568 autoscroll_containing_element,
6569 cx,
6570 );
6571
6572 let scrollbars_layout = self.layout_scrollbars(
6573 &snapshot,
6574 scrollbar_range_data,
6575 scroll_position,
6576 non_visible_cursors,
6577 cx,
6578 );
6579
6580 let gutter_settings = EditorSettings::get_global(cx).gutter;
6581
6582 let expanded_add_hunks_by_rows = self.editor.update(cx, |editor, _| {
6583 editor
6584 .diff_map
6585 .hunks(false)
6586 .filter(|hunk| hunk.status == DiffHunkStatus::Added)
6587 .map(|expanded_hunk| {
6588 let start_row = expanded_hunk
6589 .hunk_range
6590 .start
6591 .to_display_point(&snapshot)
6592 .row();
6593 (start_row, expanded_hunk.clone())
6594 })
6595 .collect::<HashMap<_, _>>()
6596 });
6597
6598 let rows_with_hunk_bounds = display_hunks
6599 .iter()
6600 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
6601 .fold(
6602 HashMap::default(),
6603 |mut rows_with_hunk_bounds, (hunk, bounds)| {
6604 match hunk {
6605 DisplayDiffHunk::Folded { display_row } => {
6606 rows_with_hunk_bounds.insert(*display_row, bounds);
6607 }
6608 DisplayDiffHunk::Unfolded {
6609 display_row_range, ..
6610 } => {
6611 for display_row in display_row_range.iter_rows() {
6612 rows_with_hunk_bounds.insert(display_row, bounds);
6613 }
6614 }
6615 }
6616 rows_with_hunk_bounds
6617 },
6618 );
6619 let mut code_actions_indicator = None;
6620 if let Some(newest_selection_head) = newest_selection_head {
6621 if (start_row..end_row).contains(&newest_selection_head.row()) {
6622 self.layout_context_menu(
6623 line_height,
6624 &text_hitbox,
6625 content_origin,
6626 start_row,
6627 scroll_pixel_position,
6628 &line_layouts,
6629 newest_selection_head,
6630 gutter_dimensions.width - gutter_dimensions.left_padding,
6631 cx,
6632 );
6633
6634 let show_code_actions = snapshot
6635 .show_code_actions
6636 .unwrap_or(gutter_settings.code_actions);
6637 if show_code_actions {
6638 let newest_selection_point =
6639 newest_selection_head.to_point(&snapshot.display_snapshot);
6640 let newest_selection_display_row =
6641 newest_selection_point.to_display_point(&snapshot).row();
6642 if !expanded_add_hunks_by_rows
6643 .contains_key(&newest_selection_display_row)
6644 {
6645 if !snapshot
6646 .is_line_folded(MultiBufferRow(newest_selection_point.row))
6647 {
6648 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
6649 MultiBufferRow(newest_selection_point.row),
6650 );
6651 if let Some((buffer, range)) = buffer {
6652 let buffer_id = buffer.remote_id();
6653 let row = range.start.row;
6654 let has_test_indicator = self
6655 .editor
6656 .read(cx)
6657 .tasks
6658 .contains_key(&(buffer_id, row));
6659
6660 if !has_test_indicator {
6661 code_actions_indicator = self
6662 .layout_code_actions_indicator(
6663 line_height,
6664 newest_selection_head,
6665 scroll_pixel_position,
6666 &gutter_dimensions,
6667 &gutter_hitbox,
6668 &rows_with_hunk_bounds,
6669 cx,
6670 );
6671 }
6672 }
6673 }
6674 }
6675 }
6676 }
6677 }
6678
6679 let test_indicators = if gutter_settings.runnables {
6680 self.layout_run_indicators(
6681 line_height,
6682 start_row..end_row,
6683 scroll_pixel_position,
6684 &gutter_dimensions,
6685 &gutter_hitbox,
6686 &rows_with_hunk_bounds,
6687 &snapshot,
6688 cx,
6689 )
6690 } else {
6691 Vec::new()
6692 };
6693
6694 self.layout_signature_help(
6695 &hitbox,
6696 content_origin,
6697 scroll_pixel_position,
6698 newest_selection_head,
6699 start_row,
6700 &line_layouts,
6701 line_height,
6702 em_width,
6703 cx,
6704 );
6705
6706 if !cx.has_active_drag() {
6707 self.layout_hover_popovers(
6708 &snapshot,
6709 &hitbox,
6710 &text_hitbox,
6711 start_row..end_row,
6712 content_origin,
6713 scroll_pixel_position,
6714 &line_layouts,
6715 line_height,
6716 em_width,
6717 cx,
6718 );
6719 }
6720
6721 let inline_completion_popover = self.layout_inline_completion_popover(
6722 &text_hitbox.bounds,
6723 &snapshot,
6724 start_row..end_row,
6725 scroll_position.y,
6726 scroll_position.y + height_in_lines,
6727 &line_layouts,
6728 line_height,
6729 scroll_pixel_position,
6730 editor_width,
6731 &style,
6732 cx,
6733 );
6734
6735 let mouse_context_menu = self.layout_mouse_context_menu(
6736 &snapshot,
6737 start_row..end_row,
6738 content_origin,
6739 cx,
6740 );
6741
6742 cx.with_element_namespace("crease_toggles", |cx| {
6743 self.prepaint_crease_toggles(
6744 &mut crease_toggles,
6745 line_height,
6746 &gutter_dimensions,
6747 gutter_settings,
6748 scroll_pixel_position,
6749 &gutter_hitbox,
6750 cx,
6751 )
6752 });
6753
6754 let invisible_symbol_font_size = font_size / 2.;
6755 let tab_invisible = cx
6756 .text_system()
6757 .shape_line(
6758 "→".into(),
6759 invisible_symbol_font_size,
6760 &[TextRun {
6761 len: "→".len(),
6762 font: self.style.text.font(),
6763 color: cx.theme().colors().editor_invisible,
6764 background_color: None,
6765 underline: None,
6766 strikethrough: None,
6767 }],
6768 )
6769 .unwrap();
6770 let space_invisible = cx
6771 .text_system()
6772 .shape_line(
6773 "•".into(),
6774 invisible_symbol_font_size,
6775 &[TextRun {
6776 len: "•".len(),
6777 font: self.style.text.font(),
6778 color: cx.theme().colors().editor_invisible,
6779 background_color: None,
6780 underline: None,
6781 strikethrough: None,
6782 }],
6783 )
6784 .unwrap();
6785
6786 EditorLayout {
6787 mode: snapshot.mode,
6788 position_map: Rc::new(PositionMap {
6789 size: bounds.size,
6790 scroll_pixel_position,
6791 scroll_max,
6792 line_layouts,
6793 line_height,
6794 em_width,
6795 em_advance,
6796 snapshot,
6797 }),
6798 visible_display_row_range: start_row..end_row,
6799 wrap_guides,
6800 indent_guides,
6801 hitbox,
6802 text_hitbox,
6803 gutter_hitbox,
6804 display_hunks,
6805 content_origin,
6806 scrollbars_layout,
6807 active_rows,
6808 highlighted_rows,
6809 highlighted_ranges,
6810 highlighted_gutter_ranges,
6811 redacted_ranges,
6812 line_elements,
6813 line_numbers,
6814 blamed_display_rows,
6815 inline_blame,
6816 blocks,
6817 cursors,
6818 visible_cursors,
6819 selections,
6820 inline_completion_popover,
6821 mouse_context_menu,
6822 test_indicators,
6823 code_actions_indicator,
6824 crease_toggles,
6825 crease_trailers,
6826 tab_invisible,
6827 space_invisible,
6828 sticky_buffer_header,
6829 }
6830 })
6831 })
6832 })
6833 }
6834
6835 fn paint(
6836 &mut self,
6837 _: Option<&GlobalElementId>,
6838 bounds: Bounds<gpui::Pixels>,
6839 _: &mut Self::RequestLayoutState,
6840 layout: &mut Self::PrepaintState,
6841 cx: &mut WindowContext,
6842 ) {
6843 let focus_handle = self.editor.focus_handle(cx);
6844 let key_context = self.editor.update(cx, |editor, cx| editor.key_context(cx));
6845
6846 cx.set_key_context(key_context);
6847 cx.handle_input(
6848 &focus_handle,
6849 ElementInputHandler::new(bounds, self.editor.clone()),
6850 );
6851 self.register_actions(cx);
6852 self.register_key_listeners(cx, layout);
6853
6854 let text_style = TextStyleRefinement {
6855 font_size: Some(self.style.text.font_size),
6856 line_height: Some(self.style.text.line_height),
6857 ..Default::default()
6858 };
6859 let hovered_hunk = layout
6860 .display_hunks
6861 .iter()
6862 .find_map(|(hunk, hunk_hitbox)| match hunk {
6863 DisplayDiffHunk::Folded { .. } => None,
6864 DisplayDiffHunk::Unfolded {
6865 diff_base_byte_range,
6866 multi_buffer_range,
6867 status,
6868 ..
6869 } => {
6870 if hunk_hitbox
6871 .as_ref()
6872 .map(|hitbox| hitbox.is_hovered(cx))
6873 .unwrap_or(false)
6874 {
6875 Some(HoveredHunk {
6876 status: *status,
6877 multi_buffer_range: multi_buffer_range.clone(),
6878 diff_base_byte_range: diff_base_byte_range.clone(),
6879 })
6880 } else {
6881 None
6882 }
6883 }
6884 });
6885 let rem_size = self.rem_size(cx);
6886 cx.with_rem_size(rem_size, |cx| {
6887 cx.with_text_style(Some(text_style), |cx| {
6888 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
6889 self.paint_mouse_listeners(layout, hovered_hunk, cx);
6890 self.paint_background(layout, cx);
6891 self.paint_indent_guides(layout, cx);
6892
6893 if layout.gutter_hitbox.size.width > Pixels::ZERO {
6894 self.paint_blamed_display_rows(layout, cx);
6895 self.paint_line_numbers(layout, cx);
6896 }
6897
6898 self.paint_text(layout, cx);
6899
6900 if layout.gutter_hitbox.size.width > Pixels::ZERO {
6901 self.paint_gutter_highlights(layout, cx);
6902 self.paint_gutter_indicators(layout, cx);
6903 }
6904
6905 if !layout.blocks.is_empty() {
6906 cx.with_element_namespace("blocks", |cx| {
6907 self.paint_blocks(layout, cx);
6908 });
6909 }
6910
6911 cx.with_element_namespace("blocks", |cx| {
6912 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
6913 sticky_header.paint(cx)
6914 }
6915 });
6916
6917 self.paint_scrollbars(layout, cx);
6918 self.paint_inline_completion_popover(layout, cx);
6919 self.paint_mouse_context_menu(layout, cx);
6920 });
6921 })
6922 })
6923 }
6924}
6925
6926pub(super) fn gutter_bounds(
6927 editor_bounds: Bounds<Pixels>,
6928 gutter_dimensions: GutterDimensions,
6929) -> Bounds<Pixels> {
6930 Bounds {
6931 origin: editor_bounds.origin,
6932 size: size(gutter_dimensions.width, editor_bounds.size.height),
6933 }
6934}
6935
6936struct ScrollbarRangeData {
6937 scrollbar_bounds: Bounds<Pixels>,
6938 scroll_range: Bounds<Pixels>,
6939 letter_size: Size<Pixels>,
6940}
6941
6942impl ScrollbarRangeData {
6943 pub fn new(
6944 scrollbar_bounds: Bounds<Pixels>,
6945 letter_size: Size<Pixels>,
6946 snapshot: &EditorSnapshot,
6947 longest_line_width: Pixels,
6948 style: &EditorStyle,
6949 cx: &WindowContext,
6950 ) -> ScrollbarRangeData {
6951 // TODO: Simplify this function down, it requires a lot of parameters
6952 let max_row = snapshot.max_point().row();
6953 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
6954
6955 let scrollbar_width = style.scrollbar_width;
6956
6957 let settings = EditorSettings::get_global(cx);
6958 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
6959 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
6960 ScrollBeyondLastLine::Off => px(1.),
6961 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
6962 };
6963
6964 let overscroll = size(
6965 scrollbar_width + (letter_size.width / 2.0),
6966 letter_size.height * scroll_beyond_last_line,
6967 );
6968
6969 let scroll_range = Bounds {
6970 origin: scrollbar_bounds.origin,
6971 size: text_bounds_size + overscroll,
6972 };
6973
6974 ScrollbarRangeData {
6975 scrollbar_bounds,
6976 scroll_range,
6977 letter_size,
6978 }
6979 }
6980}
6981
6982impl IntoElement for EditorElement {
6983 type Element = Self;
6984
6985 fn into_element(self) -> Self::Element {
6986 self
6987 }
6988}
6989
6990pub struct EditorLayout {
6991 position_map: Rc<PositionMap>,
6992 hitbox: Hitbox,
6993 text_hitbox: Hitbox,
6994 gutter_hitbox: Hitbox,
6995 content_origin: gpui::Point<Pixels>,
6996 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
6997 mode: EditorMode,
6998 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
6999 indent_guides: Option<Vec<IndentGuideLayout>>,
7000 visible_display_row_range: Range<DisplayRow>,
7001 active_rows: BTreeMap<DisplayRow, bool>,
7002 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7003 line_elements: SmallVec<[AnyElement; 1]>,
7004 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7005 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7006 blamed_display_rows: Option<Vec<AnyElement>>,
7007 inline_blame: Option<AnyElement>,
7008 blocks: Vec<BlockLayout>,
7009 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7010 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7011 redacted_ranges: Vec<Range<DisplayPoint>>,
7012 cursors: Vec<(DisplayPoint, Hsla)>,
7013 visible_cursors: Vec<CursorLayout>,
7014 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7015 code_actions_indicator: Option<AnyElement>,
7016 test_indicators: Vec<AnyElement>,
7017 crease_toggles: Vec<Option<AnyElement>>,
7018 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7019 inline_completion_popover: Option<AnyElement>,
7020 mouse_context_menu: Option<AnyElement>,
7021 tab_invisible: ShapedLine,
7022 space_invisible: ShapedLine,
7023 sticky_buffer_header: Option<AnyElement>,
7024}
7025
7026impl EditorLayout {
7027 fn line_end_overshoot(&self) -> Pixels {
7028 0.15 * self.position_map.line_height
7029 }
7030}
7031
7032struct LineNumberLayout {
7033 shaped_line: ShapedLine,
7034 hitbox: Option<Hitbox>,
7035 display_row: DisplayRow,
7036}
7037
7038struct ColoredRange<T> {
7039 start: T,
7040 end: T,
7041 color: Hsla,
7042}
7043
7044#[derive(Clone)]
7045struct ScrollbarLayout {
7046 hitbox: Hitbox,
7047 visible_range: Range<f32>,
7048 visible: bool,
7049 text_unit_size: Pixels,
7050 thumb_size: Pixels,
7051 axis: Axis,
7052}
7053
7054impl ScrollbarLayout {
7055 const BORDER_WIDTH: Pixels = px(1.0);
7056 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7057 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7058 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7059
7060 fn thumb_bounds(&self) -> Bounds<Pixels> {
7061 match self.axis {
7062 Axis::Vertical => {
7063 let thumb_top = self.y_for_row(self.visible_range.start);
7064 let thumb_bottom = thumb_top + self.thumb_size;
7065 Bounds::from_corners(
7066 point(self.hitbox.left(), thumb_top),
7067 point(self.hitbox.right(), thumb_bottom),
7068 )
7069 }
7070 Axis::Horizontal => {
7071 let thumb_left =
7072 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7073 let thumb_right = thumb_left + self.thumb_size;
7074 Bounds::from_corners(
7075 point(thumb_left, self.hitbox.top()),
7076 point(thumb_right, self.hitbox.bottom()),
7077 )
7078 }
7079 }
7080 }
7081
7082 fn y_for_row(&self, row: f32) -> Pixels {
7083 self.hitbox.top() + row * self.text_unit_size
7084 }
7085
7086 fn marker_quads_for_ranges(
7087 &self,
7088 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7089 column: Option<usize>,
7090 ) -> Vec<PaintQuad> {
7091 struct MinMax {
7092 min: Pixels,
7093 max: Pixels,
7094 }
7095 let (x_range, height_limit) = if let Some(column) = column {
7096 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7097 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7098 let end = start + column_width;
7099 (
7100 Range { start, end },
7101 MinMax {
7102 min: Self::MIN_MARKER_HEIGHT,
7103 max: px(f32::MAX),
7104 },
7105 )
7106 } else {
7107 (
7108 Range {
7109 start: Self::BORDER_WIDTH,
7110 end: self.hitbox.size.width,
7111 },
7112 MinMax {
7113 min: Self::LINE_MARKER_HEIGHT,
7114 max: Self::LINE_MARKER_HEIGHT,
7115 },
7116 )
7117 };
7118
7119 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7120 let mut pixel_ranges = row_ranges
7121 .into_iter()
7122 .map(|range| {
7123 let start_y = row_to_y(range.start);
7124 let end_y = row_to_y(range.end)
7125 + self
7126 .text_unit_size
7127 .max(height_limit.min)
7128 .min(height_limit.max);
7129 ColoredRange {
7130 start: start_y,
7131 end: end_y,
7132 color: range.color,
7133 }
7134 })
7135 .peekable();
7136
7137 let mut quads = Vec::new();
7138 while let Some(mut pixel_range) = pixel_ranges.next() {
7139 while let Some(next_pixel_range) = pixel_ranges.peek() {
7140 if pixel_range.end >= next_pixel_range.start - px(1.0)
7141 && pixel_range.color == next_pixel_range.color
7142 {
7143 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7144 pixel_ranges.next();
7145 } else {
7146 break;
7147 }
7148 }
7149
7150 let bounds = Bounds::from_corners(
7151 point(x_range.start, pixel_range.start),
7152 point(x_range.end, pixel_range.end),
7153 );
7154 quads.push(quad(
7155 bounds,
7156 Corners::default(),
7157 pixel_range.color,
7158 Edges::default(),
7159 Hsla::transparent_black(),
7160 ));
7161 }
7162
7163 quads
7164 }
7165}
7166
7167struct CreaseTrailerLayout {
7168 element: AnyElement,
7169 bounds: Bounds<Pixels>,
7170}
7171
7172struct PositionMap {
7173 size: Size<Pixels>,
7174 line_height: Pixels,
7175 scroll_pixel_position: gpui::Point<Pixels>,
7176 scroll_max: gpui::Point<f32>,
7177 em_width: Pixels,
7178 em_advance: Pixels,
7179 line_layouts: Vec<LineWithInvisibles>,
7180 snapshot: EditorSnapshot,
7181}
7182
7183#[derive(Debug, Copy, Clone)]
7184pub struct PointForPosition {
7185 pub previous_valid: DisplayPoint,
7186 pub next_valid: DisplayPoint,
7187 pub exact_unclipped: DisplayPoint,
7188 pub column_overshoot_after_line_end: u32,
7189}
7190
7191impl PointForPosition {
7192 pub fn as_valid(&self) -> Option<DisplayPoint> {
7193 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7194 Some(self.previous_valid)
7195 } else {
7196 None
7197 }
7198 }
7199}
7200
7201impl PositionMap {
7202 fn point_for_position(
7203 &self,
7204 text_bounds: Bounds<Pixels>,
7205 position: gpui::Point<Pixels>,
7206 ) -> PointForPosition {
7207 let scroll_position = self.snapshot.scroll_position();
7208 let position = position - text_bounds.origin;
7209 let y = position.y.max(px(0.)).min(self.size.height);
7210 let x = position.x + (scroll_position.x * self.em_width);
7211 let row = ((y / self.line_height) + scroll_position.y) as u32;
7212
7213 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7214 .line_layouts
7215 .get(row as usize - scroll_position.y as usize)
7216 {
7217 if let Some(ix) = line.index_for_x(x) {
7218 (ix as u32, px(0.))
7219 } else {
7220 (line.len as u32, px(0.).max(x - line.width))
7221 }
7222 } else {
7223 (0, x)
7224 };
7225
7226 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7227 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7228 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7229
7230 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7231 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7232 PointForPosition {
7233 previous_valid,
7234 next_valid,
7235 exact_unclipped,
7236 column_overshoot_after_line_end,
7237 }
7238 }
7239}
7240
7241struct BlockLayout {
7242 id: BlockId,
7243 row: Option<DisplayRow>,
7244 element: AnyElement,
7245 available_space: Size<AvailableSpace>,
7246 style: BlockStyle,
7247}
7248
7249fn layout_line(
7250 row: DisplayRow,
7251 snapshot: &EditorSnapshot,
7252 style: &EditorStyle,
7253 text_width: Pixels,
7254 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7255 cx: &mut WindowContext,
7256) -> LineWithInvisibles {
7257 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7258 LineWithInvisibles::from_chunks(
7259 chunks,
7260 &style,
7261 MAX_LINE_LEN,
7262 1,
7263 snapshot.mode,
7264 text_width,
7265 is_row_soft_wrapped,
7266 cx,
7267 )
7268 .pop()
7269 .unwrap()
7270}
7271
7272#[derive(Debug)]
7273pub struct IndentGuideLayout {
7274 origin: gpui::Point<Pixels>,
7275 length: Pixels,
7276 single_indent_width: Pixels,
7277 depth: u32,
7278 active: bool,
7279 settings: IndentGuideSettings,
7280}
7281
7282pub struct CursorLayout {
7283 origin: gpui::Point<Pixels>,
7284 block_width: Pixels,
7285 line_height: Pixels,
7286 color: Hsla,
7287 shape: CursorShape,
7288 block_text: Option<ShapedLine>,
7289 cursor_name: Option<AnyElement>,
7290}
7291
7292#[derive(Debug)]
7293pub struct CursorName {
7294 string: SharedString,
7295 color: Hsla,
7296 is_top_row: bool,
7297}
7298
7299impl CursorLayout {
7300 pub fn new(
7301 origin: gpui::Point<Pixels>,
7302 block_width: Pixels,
7303 line_height: Pixels,
7304 color: Hsla,
7305 shape: CursorShape,
7306 block_text: Option<ShapedLine>,
7307 ) -> CursorLayout {
7308 CursorLayout {
7309 origin,
7310 block_width,
7311 line_height,
7312 color,
7313 shape,
7314 block_text,
7315 cursor_name: None,
7316 }
7317 }
7318
7319 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7320 Bounds {
7321 origin: self.origin + origin,
7322 size: size(self.block_width, self.line_height),
7323 }
7324 }
7325
7326 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7327 match self.shape {
7328 CursorShape::Bar => Bounds {
7329 origin: self.origin + origin,
7330 size: size(px(2.0), self.line_height),
7331 },
7332 CursorShape::Block | CursorShape::Hollow => Bounds {
7333 origin: self.origin + origin,
7334 size: size(self.block_width, self.line_height),
7335 },
7336 CursorShape::Underline => Bounds {
7337 origin: self.origin
7338 + origin
7339 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
7340 size: size(self.block_width, px(2.0)),
7341 },
7342 }
7343 }
7344
7345 pub fn layout(
7346 &mut self,
7347 origin: gpui::Point<Pixels>,
7348 cursor_name: Option<CursorName>,
7349 cx: &mut WindowContext,
7350 ) {
7351 if let Some(cursor_name) = cursor_name {
7352 let bounds = self.bounds(origin);
7353 let text_size = self.line_height / 1.5;
7354
7355 let name_origin = if cursor_name.is_top_row {
7356 point(bounds.right() - px(1.), bounds.top())
7357 } else {
7358 match self.shape {
7359 CursorShape::Bar => point(
7360 bounds.right() - px(2.),
7361 bounds.top() - text_size / 2. - px(1.),
7362 ),
7363 _ => point(
7364 bounds.right() - px(1.),
7365 bounds.top() - text_size / 2. - px(1.),
7366 ),
7367 }
7368 };
7369 let mut name_element = div()
7370 .bg(self.color)
7371 .text_size(text_size)
7372 .px_0p5()
7373 .line_height(text_size + px(2.))
7374 .text_color(cursor_name.color)
7375 .child(cursor_name.string.clone())
7376 .into_any_element();
7377
7378 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), cx);
7379
7380 self.cursor_name = Some(name_element);
7381 }
7382 }
7383
7384 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
7385 let bounds = self.bounds(origin);
7386
7387 //Draw background or border quad
7388 let cursor = if matches!(self.shape, CursorShape::Hollow) {
7389 outline(bounds, self.color)
7390 } else {
7391 fill(bounds, self.color)
7392 };
7393
7394 if let Some(name) = &mut self.cursor_name {
7395 name.paint(cx);
7396 }
7397
7398 cx.paint_quad(cursor);
7399
7400 if let Some(block_text) = &self.block_text {
7401 block_text
7402 .paint(self.origin + origin, self.line_height, cx)
7403 .log_err();
7404 }
7405 }
7406
7407 pub fn shape(&self) -> CursorShape {
7408 self.shape
7409 }
7410}
7411
7412#[derive(Debug)]
7413pub struct HighlightedRange {
7414 pub start_y: Pixels,
7415 pub line_height: Pixels,
7416 pub lines: Vec<HighlightedRangeLine>,
7417 pub color: Hsla,
7418 pub corner_radius: Pixels,
7419}
7420
7421#[derive(Debug)]
7422pub struct HighlightedRangeLine {
7423 pub start_x: Pixels,
7424 pub end_x: Pixels,
7425}
7426
7427impl HighlightedRange {
7428 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
7429 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
7430 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
7431 self.paint_lines(
7432 self.start_y + self.line_height,
7433 &self.lines[1..],
7434 bounds,
7435 cx,
7436 );
7437 } else {
7438 self.paint_lines(self.start_y, &self.lines, bounds, cx);
7439 }
7440 }
7441
7442 fn paint_lines(
7443 &self,
7444 start_y: Pixels,
7445 lines: &[HighlightedRangeLine],
7446 _bounds: Bounds<Pixels>,
7447 cx: &mut WindowContext,
7448 ) {
7449 if lines.is_empty() {
7450 return;
7451 }
7452
7453 let first_line = lines.first().unwrap();
7454 let last_line = lines.last().unwrap();
7455
7456 let first_top_left = point(first_line.start_x, start_y);
7457 let first_top_right = point(first_line.end_x, start_y);
7458
7459 let curve_height = point(Pixels::ZERO, self.corner_radius);
7460 let curve_width = |start_x: Pixels, end_x: Pixels| {
7461 let max = (end_x - start_x) / 2.;
7462 let width = if max < self.corner_radius {
7463 max
7464 } else {
7465 self.corner_radius
7466 };
7467
7468 point(width, Pixels::ZERO)
7469 };
7470
7471 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
7472 let mut path = gpui::Path::new(first_top_right - top_curve_width);
7473 path.curve_to(first_top_right + curve_height, first_top_right);
7474
7475 let mut iter = lines.iter().enumerate().peekable();
7476 while let Some((ix, line)) = iter.next() {
7477 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
7478
7479 if let Some((_, next_line)) = iter.peek() {
7480 let next_top_right = point(next_line.end_x, bottom_right.y);
7481
7482 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
7483 Ordering::Equal => {
7484 path.line_to(bottom_right);
7485 }
7486 Ordering::Less => {
7487 let curve_width = curve_width(next_top_right.x, bottom_right.x);
7488 path.line_to(bottom_right - curve_height);
7489 if self.corner_radius > Pixels::ZERO {
7490 path.curve_to(bottom_right - curve_width, bottom_right);
7491 }
7492 path.line_to(next_top_right + curve_width);
7493 if self.corner_radius > Pixels::ZERO {
7494 path.curve_to(next_top_right + curve_height, next_top_right);
7495 }
7496 }
7497 Ordering::Greater => {
7498 let curve_width = curve_width(bottom_right.x, next_top_right.x);
7499 path.line_to(bottom_right - curve_height);
7500 if self.corner_radius > Pixels::ZERO {
7501 path.curve_to(bottom_right + curve_width, bottom_right);
7502 }
7503 path.line_to(next_top_right - curve_width);
7504 if self.corner_radius > Pixels::ZERO {
7505 path.curve_to(next_top_right + curve_height, next_top_right);
7506 }
7507 }
7508 }
7509 } else {
7510 let curve_width = curve_width(line.start_x, line.end_x);
7511 path.line_to(bottom_right - curve_height);
7512 if self.corner_radius > Pixels::ZERO {
7513 path.curve_to(bottom_right - curve_width, bottom_right);
7514 }
7515
7516 let bottom_left = point(line.start_x, bottom_right.y);
7517 path.line_to(bottom_left + curve_width);
7518 if self.corner_radius > Pixels::ZERO {
7519 path.curve_to(bottom_left - curve_height, bottom_left);
7520 }
7521 }
7522 }
7523
7524 if first_line.start_x > last_line.start_x {
7525 let curve_width = curve_width(last_line.start_x, first_line.start_x);
7526 let second_top_left = point(last_line.start_x, start_y + self.line_height);
7527 path.line_to(second_top_left + curve_height);
7528 if self.corner_radius > Pixels::ZERO {
7529 path.curve_to(second_top_left + curve_width, second_top_left);
7530 }
7531 let first_bottom_left = point(first_line.start_x, second_top_left.y);
7532 path.line_to(first_bottom_left - curve_width);
7533 if self.corner_radius > Pixels::ZERO {
7534 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
7535 }
7536 }
7537
7538 path.line_to(first_top_left + curve_height);
7539 if self.corner_radius > Pixels::ZERO {
7540 path.curve_to(first_top_left + top_curve_width, first_top_left);
7541 }
7542 path.line_to(first_top_right - top_curve_width);
7543
7544 cx.paint_path(path, self.color);
7545 }
7546}
7547
7548pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
7549 (delta.pow(1.5) / 100.0).into()
7550}
7551
7552fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
7553 (delta.pow(1.2) / 300.0).into()
7554}
7555
7556pub fn register_action<T: Action>(
7557 view: &View<Editor>,
7558 cx: &mut WindowContext,
7559 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
7560) {
7561 let view = view.clone();
7562 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
7563 let action = action.downcast_ref().unwrap();
7564 if phase == DispatchPhase::Bubble {
7565 view.update(cx, |editor, cx| {
7566 listener(editor, action, cx);
7567 })
7568 }
7569 })
7570}
7571
7572fn compute_auto_height_layout(
7573 editor: &mut Editor,
7574 max_lines: usize,
7575 max_line_number_width: Pixels,
7576 known_dimensions: Size<Option<Pixels>>,
7577 available_width: AvailableSpace,
7578 cx: &mut ViewContext<Editor>,
7579) -> Option<Size<Pixels>> {
7580 let width = known_dimensions.width.or({
7581 if let AvailableSpace::Definite(available_width) = available_width {
7582 Some(available_width)
7583 } else {
7584 None
7585 }
7586 })?;
7587 if let Some(height) = known_dimensions.height {
7588 return Some(size(width, height));
7589 }
7590
7591 let style = editor.style.as_ref().unwrap();
7592 let font_id = cx.text_system().resolve_font(&style.text.font());
7593 let font_size = style.text.font_size.to_pixels(cx.rem_size());
7594 let line_height = style.text.line_height_in_pixels(cx.rem_size());
7595 let em_width = cx
7596 .text_system()
7597 .typographic_bounds(font_id, font_size, 'm')
7598 .unwrap()
7599 .size
7600 .width;
7601 let em_advance = cx
7602 .text_system()
7603 .advance(font_id, font_size, 'm')
7604 .unwrap()
7605 .width;
7606
7607 let mut snapshot = editor.snapshot(cx);
7608 let gutter_dimensions = snapshot.gutter_dimensions(
7609 font_id,
7610 font_size,
7611 em_width,
7612 em_advance,
7613 max_line_number_width,
7614 cx,
7615 );
7616
7617 editor.gutter_dimensions = gutter_dimensions;
7618 let text_width = width - gutter_dimensions.width;
7619 let overscroll = size(em_width, px(0.));
7620
7621 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
7622 if editor.set_wrap_width(Some(editor_width), cx) {
7623 snapshot = editor.snapshot(cx);
7624 }
7625
7626 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
7627 let height = scroll_height
7628 .max(line_height)
7629 .min(line_height * max_lines as f32);
7630
7631 Some(size(width, height))
7632}
7633
7634#[cfg(test)]
7635mod tests {
7636 use super::*;
7637 use crate::{
7638 display_map::{BlockPlacement, BlockProperties},
7639 editor_tests::{init_test, update_test_language_settings},
7640 Editor, MultiBuffer,
7641 };
7642 use gpui::{TestAppContext, VisualTestContext};
7643 use language::language_settings;
7644 use log::info;
7645 use similar::DiffableStr;
7646 use std::num::NonZeroU32;
7647 use util::test::sample_text;
7648
7649 #[gpui::test]
7650 fn test_shape_line_numbers(cx: &mut TestAppContext) {
7651 init_test(cx, |_| {});
7652 let window = cx.add_window(|cx| {
7653 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
7654 Editor::new(EditorMode::Full, buffer, None, true, cx)
7655 });
7656
7657 let editor = window.root(cx).unwrap();
7658 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7659 let line_height = window
7660 .update(cx, |_, cx| style.text.line_height_in_pixels(cx.rem_size()))
7661 .unwrap();
7662 let element = EditorElement::new(&editor, style);
7663 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
7664
7665 let layouts = cx
7666 .update_window(*window, |_, cx| {
7667 element.layout_line_numbers(
7668 None,
7669 GutterDimensions {
7670 left_padding: Pixels::ZERO,
7671 right_padding: Pixels::ZERO,
7672 width: px(30.0),
7673 margin: Pixels::ZERO,
7674 git_blame_entries_width: None,
7675 },
7676 line_height,
7677 gpui::Point::default(),
7678 DisplayRow(0)..DisplayRow(6),
7679 (0..6).map(MultiBufferRow).map(Some),
7680 Some(DisplayPoint::new(DisplayRow(0), 0)),
7681 &snapshot,
7682 cx,
7683 )
7684 })
7685 .unwrap();
7686 assert_eq!(layouts.len(), 6);
7687
7688 let relative_rows = window
7689 .update(cx, |editor, cx| {
7690 let snapshot = editor.snapshot(cx);
7691 element.calculate_relative_line_numbers(
7692 &snapshot,
7693 &(DisplayRow(0)..DisplayRow(6)),
7694 Some(DisplayRow(3)),
7695 )
7696 })
7697 .unwrap();
7698 assert_eq!(relative_rows[&DisplayRow(0)], 3);
7699 assert_eq!(relative_rows[&DisplayRow(1)], 2);
7700 assert_eq!(relative_rows[&DisplayRow(2)], 1);
7701 // current line has no relative number
7702 assert_eq!(relative_rows[&DisplayRow(4)], 1);
7703 assert_eq!(relative_rows[&DisplayRow(5)], 2);
7704
7705 // works if cursor is before screen
7706 let relative_rows = window
7707 .update(cx, |editor, cx| {
7708 let snapshot = editor.snapshot(cx);
7709 element.calculate_relative_line_numbers(
7710 &snapshot,
7711 &(DisplayRow(3)..DisplayRow(6)),
7712 Some(DisplayRow(1)),
7713 )
7714 })
7715 .unwrap();
7716 assert_eq!(relative_rows.len(), 3);
7717 assert_eq!(relative_rows[&DisplayRow(3)], 2);
7718 assert_eq!(relative_rows[&DisplayRow(4)], 3);
7719 assert_eq!(relative_rows[&DisplayRow(5)], 4);
7720
7721 // works if cursor is after screen
7722 let relative_rows = window
7723 .update(cx, |editor, cx| {
7724 let snapshot = editor.snapshot(cx);
7725 element.calculate_relative_line_numbers(
7726 &snapshot,
7727 &(DisplayRow(0)..DisplayRow(3)),
7728 Some(DisplayRow(6)),
7729 )
7730 })
7731 .unwrap();
7732 assert_eq!(relative_rows.len(), 3);
7733 assert_eq!(relative_rows[&DisplayRow(0)], 5);
7734 assert_eq!(relative_rows[&DisplayRow(1)], 4);
7735 assert_eq!(relative_rows[&DisplayRow(2)], 3);
7736 }
7737
7738 #[gpui::test]
7739 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
7740 init_test(cx, |_| {});
7741
7742 let window = cx.add_window(|cx| {
7743 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
7744 Editor::new(EditorMode::Full, buffer, None, true, cx)
7745 });
7746 let cx = &mut VisualTestContext::from_window(*window, cx);
7747 let editor = window.root(cx).unwrap();
7748 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7749
7750 window
7751 .update(cx, |editor, cx| {
7752 editor.cursor_shape = CursorShape::Block;
7753 editor.change_selections(None, cx, |s| {
7754 s.select_ranges([
7755 Point::new(0, 0)..Point::new(1, 0),
7756 Point::new(3, 2)..Point::new(3, 3),
7757 Point::new(5, 6)..Point::new(6, 0),
7758 ]);
7759 });
7760 })
7761 .unwrap();
7762
7763 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7764 EditorElement::new(&editor, style)
7765 });
7766
7767 assert_eq!(state.selections.len(), 1);
7768 let local_selections = &state.selections[0].1;
7769 assert_eq!(local_selections.len(), 3);
7770 // moves cursor back one line
7771 assert_eq!(
7772 local_selections[0].head,
7773 DisplayPoint::new(DisplayRow(0), 6)
7774 );
7775 assert_eq!(
7776 local_selections[0].range,
7777 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
7778 );
7779
7780 // moves cursor back one column
7781 assert_eq!(
7782 local_selections[1].range,
7783 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
7784 );
7785 assert_eq!(
7786 local_selections[1].head,
7787 DisplayPoint::new(DisplayRow(3), 2)
7788 );
7789
7790 // leaves cursor on the max point
7791 assert_eq!(
7792 local_selections[2].range,
7793 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
7794 );
7795 assert_eq!(
7796 local_selections[2].head,
7797 DisplayPoint::new(DisplayRow(6), 0)
7798 );
7799
7800 // active lines does not include 1 (even though the range of the selection does)
7801 assert_eq!(
7802 state.active_rows.keys().cloned().collect::<Vec<_>>(),
7803 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
7804 );
7805
7806 // multi-buffer support
7807 // in DisplayPoint coordinates, this is what we're dealing with:
7808 // 0: [[file
7809 // 1: header
7810 // 2: section]]
7811 // 3: aaaaaa
7812 // 4: bbbbbb
7813 // 5: cccccc
7814 // 6:
7815 // 7: [[footer]]
7816 // 8: [[header]]
7817 // 9: ffffff
7818 // 10: gggggg
7819 // 11: hhhhhh
7820 // 12:
7821 // 13: [[footer]]
7822 // 14: [[file
7823 // 15: header
7824 // 16: section]]
7825 // 17: bbbbbb
7826 // 18: cccccc
7827 // 19: dddddd
7828 // 20: [[footer]]
7829 let window = cx.add_window(|cx| {
7830 let buffer = MultiBuffer::build_multi(
7831 [
7832 (
7833 &(sample_text(8, 6, 'a') + "\n"),
7834 vec![
7835 Point::new(0, 0)..Point::new(3, 0),
7836 Point::new(4, 0)..Point::new(7, 0),
7837 ],
7838 ),
7839 (
7840 &(sample_text(8, 6, 'a') + "\n"),
7841 vec![Point::new(1, 0)..Point::new(3, 0)],
7842 ),
7843 ],
7844 cx,
7845 );
7846 Editor::new(EditorMode::Full, buffer, None, true, cx)
7847 });
7848 let editor = window.root(cx).unwrap();
7849 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7850 let _state = window.update(cx, |editor, cx| {
7851 editor.cursor_shape = CursorShape::Block;
7852 editor.change_selections(None, cx, |s| {
7853 s.select_display_ranges([
7854 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
7855 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
7856 ]);
7857 });
7858 });
7859
7860 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7861 EditorElement::new(&editor, style)
7862 });
7863 assert_eq!(state.selections.len(), 1);
7864 let local_selections = &state.selections[0].1;
7865 assert_eq!(local_selections.len(), 2);
7866
7867 // moves cursor on excerpt boundary back a line
7868 // and doesn't allow selection to bleed through
7869 assert_eq!(
7870 local_selections[0].range,
7871 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
7872 );
7873 assert_eq!(
7874 local_selections[0].head,
7875 DisplayPoint::new(DisplayRow(6), 0)
7876 );
7877 // moves cursor on buffer boundary back two lines
7878 // and doesn't allow selection to bleed through
7879 assert_eq!(
7880 local_selections[1].range,
7881 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
7882 );
7883 assert_eq!(
7884 local_selections[1].head,
7885 DisplayPoint::new(DisplayRow(12), 0)
7886 );
7887 }
7888
7889 #[gpui::test]
7890 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
7891 init_test(cx, |_| {});
7892
7893 let window = cx.add_window(|cx| {
7894 let buffer = MultiBuffer::build_simple("", cx);
7895 Editor::new(EditorMode::Full, buffer, None, true, cx)
7896 });
7897 let cx = &mut VisualTestContext::from_window(*window, cx);
7898 let editor = window.root(cx).unwrap();
7899 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7900 window
7901 .update(cx, |editor, cx| {
7902 editor.set_placeholder_text("hello", cx);
7903 editor.insert_blocks(
7904 [BlockProperties {
7905 style: BlockStyle::Fixed,
7906 placement: BlockPlacement::Above(Anchor::min()),
7907 height: 3,
7908 render: Arc::new(|cx| div().h(3. * cx.line_height()).into_any()),
7909 priority: 0,
7910 }],
7911 None,
7912 cx,
7913 );
7914
7915 // Blur the editor so that it displays placeholder text.
7916 cx.blur();
7917 })
7918 .unwrap();
7919
7920 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7921 EditorElement::new(&editor, style)
7922 });
7923 assert_eq!(state.position_map.line_layouts.len(), 4);
7924 assert_eq!(state.line_numbers.len(), 1);
7925 assert_eq!(
7926 state
7927 .line_numbers
7928 .get(&MultiBufferRow(0))
7929 .and_then(|line_number| line_number.shaped_line.text.as_str()),
7930 Some("1")
7931 );
7932 }
7933
7934 #[gpui::test]
7935 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
7936 const TAB_SIZE: u32 = 4;
7937
7938 let input_text = "\t \t|\t| a b";
7939 let expected_invisibles = vec![
7940 Invisible::Tab {
7941 line_start_offset: 0,
7942 line_end_offset: TAB_SIZE as usize,
7943 },
7944 Invisible::Whitespace {
7945 line_offset: TAB_SIZE as usize,
7946 },
7947 Invisible::Tab {
7948 line_start_offset: TAB_SIZE as usize + 1,
7949 line_end_offset: TAB_SIZE as usize * 2,
7950 },
7951 Invisible::Tab {
7952 line_start_offset: TAB_SIZE as usize * 2 + 1,
7953 line_end_offset: TAB_SIZE as usize * 3,
7954 },
7955 Invisible::Whitespace {
7956 line_offset: TAB_SIZE as usize * 3 + 1,
7957 },
7958 Invisible::Whitespace {
7959 line_offset: TAB_SIZE as usize * 3 + 3,
7960 },
7961 ];
7962 assert_eq!(
7963 expected_invisibles.len(),
7964 input_text
7965 .chars()
7966 .filter(|initial_char| initial_char.is_whitespace())
7967 .count(),
7968 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
7969 );
7970
7971 for show_line_numbers in [true, false] {
7972 init_test(cx, |s| {
7973 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
7974 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
7975 });
7976
7977 let actual_invisibles = collect_invisibles_from_new_editor(
7978 cx,
7979 EditorMode::Full,
7980 input_text,
7981 px(500.0),
7982 show_line_numbers,
7983 );
7984
7985 assert_eq!(expected_invisibles, actual_invisibles);
7986 }
7987 }
7988
7989 #[gpui::test]
7990 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
7991 init_test(cx, |s| {
7992 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
7993 s.defaults.tab_size = NonZeroU32::new(4);
7994 });
7995
7996 for editor_mode_without_invisibles in [
7997 EditorMode::SingleLine { auto_width: false },
7998 EditorMode::AutoHeight { max_lines: 100 },
7999 ] {
8000 for show_line_numbers in [true, false] {
8001 let invisibles = collect_invisibles_from_new_editor(
8002 cx,
8003 editor_mode_without_invisibles,
8004 "\t\t\t| | a b",
8005 px(500.0),
8006 show_line_numbers,
8007 );
8008 assert!(invisibles.is_empty(),
8009 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8010 }
8011 }
8012 }
8013
8014 #[gpui::test]
8015 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8016 let tab_size = 4;
8017 let input_text = "a\tbcd ".repeat(9);
8018 let repeated_invisibles = [
8019 Invisible::Tab {
8020 line_start_offset: 1,
8021 line_end_offset: tab_size as usize,
8022 },
8023 Invisible::Whitespace {
8024 line_offset: tab_size as usize + 3,
8025 },
8026 Invisible::Whitespace {
8027 line_offset: tab_size as usize + 4,
8028 },
8029 Invisible::Whitespace {
8030 line_offset: tab_size as usize + 5,
8031 },
8032 Invisible::Whitespace {
8033 line_offset: tab_size as usize + 6,
8034 },
8035 Invisible::Whitespace {
8036 line_offset: tab_size as usize + 7,
8037 },
8038 ];
8039 let expected_invisibles = std::iter::once(repeated_invisibles)
8040 .cycle()
8041 .take(9)
8042 .flatten()
8043 .collect::<Vec<_>>();
8044 assert_eq!(
8045 expected_invisibles.len(),
8046 input_text
8047 .chars()
8048 .filter(|initial_char| initial_char.is_whitespace())
8049 .count(),
8050 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8051 );
8052 info!("Expected invisibles: {expected_invisibles:?}");
8053
8054 init_test(cx, |_| {});
8055
8056 // Put the same string with repeating whitespace pattern into editors of various size,
8057 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8058 let resize_step = 10.0;
8059 let mut editor_width = 200.0;
8060 while editor_width <= 1000.0 {
8061 for show_line_numbers in [true, false] {
8062 update_test_language_settings(cx, |s| {
8063 s.defaults.tab_size = NonZeroU32::new(tab_size);
8064 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8065 s.defaults.preferred_line_length = Some(editor_width as u32);
8066 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8067 });
8068
8069 let actual_invisibles = collect_invisibles_from_new_editor(
8070 cx,
8071 EditorMode::Full,
8072 &input_text,
8073 px(editor_width),
8074 show_line_numbers,
8075 );
8076
8077 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8078 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8079 let mut i = 0;
8080 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8081 i = actual_index;
8082 match expected_invisibles.get(i) {
8083 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8084 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8085 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8086 _ => {
8087 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8088 }
8089 },
8090 None => {
8091 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8092 }
8093 }
8094 }
8095 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8096 assert!(
8097 missing_expected_invisibles.is_empty(),
8098 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8099 );
8100
8101 editor_width += resize_step;
8102 }
8103 }
8104 }
8105
8106 fn collect_invisibles_from_new_editor(
8107 cx: &mut TestAppContext,
8108 editor_mode: EditorMode,
8109 input_text: &str,
8110 editor_width: Pixels,
8111 show_line_numbers: bool,
8112 ) -> Vec<Invisible> {
8113 info!(
8114 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8115 editor_width.0
8116 );
8117 let window = cx.add_window(|cx| {
8118 let buffer = MultiBuffer::build_simple(input_text, cx);
8119 Editor::new(editor_mode, buffer, None, true, cx)
8120 });
8121 let cx = &mut VisualTestContext::from_window(*window, cx);
8122 let editor = window.root(cx).unwrap();
8123
8124 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8125 window
8126 .update(cx, |editor, cx| {
8127 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8128 editor.set_wrap_width(Some(editor_width), cx);
8129 editor.set_show_line_numbers(show_line_numbers, cx);
8130 })
8131 .unwrap();
8132 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
8133 EditorElement::new(&editor, style)
8134 });
8135 state
8136 .position_map
8137 .line_layouts
8138 .iter()
8139 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8140 .cloned()
8141 .collect()
8142 }
8143}