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 .and_then(|(total_text_units_x, track_bounds_x)| {
1339 if text_units_per_page.horizontal >= total_text_units_x {
1340 return None;
1341 }
1342
1343 let thumb_percent =
1344 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1345
1346 Some(track_bounds_x.size.width * thumb_percent)
1347 }),
1348 total_text_units.vertical.zip(track_bounds.vertical).map(
1349 |(total_text_units_y, track_bounds_y)| {
1350 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1351
1352 track_bounds_y.size.height * thumb_percent
1353 },
1354 ),
1355 );
1356
1357 // NOTE: Space not taken by track bounds divided by text units not on screen
1358 let text_unit_size = axis_pair(
1359 thumb_size
1360 .horizontal
1361 .zip(track_bounds.horizontal)
1362 .zip(total_text_units.horizontal)
1363 .map(|((thumb_size, track_bounds), total_text_units)| {
1364 (track_bounds.size.width - thumb_size)
1365 / (total_text_units - text_units_per_page.horizontal).max(0.)
1366 }),
1367 thumb_size
1368 .vertical
1369 .zip(track_bounds.vertical)
1370 .zip(total_text_units.vertical)
1371 .map(|((thumb_size, track_bounds), total_text_units)| {
1372 (track_bounds.size.height - thumb_size)
1373 / (total_text_units - text_units_per_page.vertical).max(0.)
1374 }),
1375 );
1376
1377 let horizontal_scrollbar = track_bounds
1378 .horizontal
1379 .zip(visible_range.horizontal)
1380 .zip(text_unit_size.horizontal)
1381 .zip(thumb_size.horizontal)
1382 .map(
1383 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1384 hitbox: cx.insert_hitbox(track_bounds, false),
1385 visible_range,
1386 text_unit_size,
1387 visible: show_scrollbars,
1388 thumb_size,
1389 axis: Axis::Horizontal,
1390 },
1391 );
1392
1393 let vertical_scrollbar = track_bounds
1394 .vertical
1395 .zip(visible_range.vertical)
1396 .zip(text_unit_size.vertical)
1397 .zip(thumb_size.vertical)
1398 .map(
1399 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1400 hitbox: cx.insert_hitbox(track_bounds, false),
1401 visible_range,
1402 text_unit_size,
1403 visible: show_scrollbars,
1404 thumb_size,
1405 axis: Axis::Vertical,
1406 },
1407 );
1408
1409 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1410 }
1411
1412 #[allow(clippy::too_many_arguments)]
1413 fn prepaint_crease_toggles(
1414 &self,
1415 crease_toggles: &mut [Option<AnyElement>],
1416 line_height: Pixels,
1417 gutter_dimensions: &GutterDimensions,
1418 gutter_settings: crate::editor_settings::Gutter,
1419 scroll_pixel_position: gpui::Point<Pixels>,
1420 gutter_hitbox: &Hitbox,
1421 cx: &mut WindowContext,
1422 ) {
1423 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1424 if let Some(crease_toggle) = crease_toggle {
1425 debug_assert!(gutter_settings.folds);
1426 let available_space = size(
1427 AvailableSpace::MinContent,
1428 AvailableSpace::Definite(line_height * 0.55),
1429 );
1430 let crease_toggle_size = crease_toggle.layout_as_root(available_space, cx);
1431
1432 let position = point(
1433 gutter_dimensions.width - gutter_dimensions.right_padding,
1434 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1435 );
1436 let centering_offset = point(
1437 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1438 (line_height - crease_toggle_size.height) / 2.,
1439 );
1440 let origin = gutter_hitbox.origin + position + centering_offset;
1441 crease_toggle.prepaint_as_root(origin, available_space, cx);
1442 }
1443 }
1444 }
1445
1446 #[allow(clippy::too_many_arguments)]
1447 fn prepaint_crease_trailers(
1448 &self,
1449 trailers: Vec<Option<AnyElement>>,
1450 lines: &[LineWithInvisibles],
1451 line_height: Pixels,
1452 content_origin: gpui::Point<Pixels>,
1453 scroll_pixel_position: gpui::Point<Pixels>,
1454 em_width: Pixels,
1455 cx: &mut WindowContext,
1456 ) -> Vec<Option<CreaseTrailerLayout>> {
1457 trailers
1458 .into_iter()
1459 .enumerate()
1460 .map(|(ix, element)| {
1461 let mut element = element?;
1462 let available_space = size(
1463 AvailableSpace::MinContent,
1464 AvailableSpace::Definite(line_height),
1465 );
1466 let size = element.layout_as_root(available_space, cx);
1467
1468 let line = &lines[ix];
1469 let padding = if line.width == Pixels::ZERO {
1470 Pixels::ZERO
1471 } else {
1472 4. * em_width
1473 };
1474 let position = point(
1475 scroll_pixel_position.x + line.width + padding,
1476 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1477 );
1478 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1479 let origin = content_origin + position + centering_offset;
1480 element.prepaint_as_root(origin, available_space, cx);
1481 Some(CreaseTrailerLayout {
1482 element,
1483 bounds: Bounds::new(origin, size),
1484 })
1485 })
1486 .collect()
1487 }
1488
1489 // Folds contained in a hunk are ignored apart from shrinking visual size
1490 // If a fold contains any hunks then that fold line is marked as modified
1491 fn layout_gutter_git_hunks(
1492 &self,
1493 line_height: Pixels,
1494 gutter_hitbox: &Hitbox,
1495 display_rows: Range<DisplayRow>,
1496 anchor_range: Range<Anchor>,
1497 snapshot: &EditorSnapshot,
1498 cx: &mut WindowContext,
1499 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1500 let buffer_snapshot = &snapshot.buffer_snapshot;
1501 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1502 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1503
1504 let git_gutter_setting = ProjectSettings::get_global(cx)
1505 .git
1506 .git_gutter
1507 .unwrap_or_default();
1508
1509 self.editor.update(cx, |editor, cx| {
1510 let expanded_hunks = &editor.diff_map.hunks;
1511 let expanded_hunks_start_ix = expanded_hunks
1512 .binary_search_by(|hunk| {
1513 hunk.hunk_range
1514 .end
1515 .cmp(&anchor_range.start, &buffer_snapshot)
1516 .then(Ordering::Less)
1517 })
1518 .unwrap_err();
1519 let mut expanded_hunks = expanded_hunks[expanded_hunks_start_ix..].iter().peekable();
1520
1521 let mut display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)> = editor
1522 .diff_map
1523 .snapshot
1524 .diff_hunks_in_range(buffer_start..buffer_end, &buffer_snapshot)
1525 .filter_map(|hunk| {
1526 let display_hunk = diff_hunk_to_display(&hunk, snapshot);
1527
1528 if let DisplayDiffHunk::Unfolded {
1529 multi_buffer_range,
1530 status,
1531 ..
1532 } = &display_hunk
1533 {
1534 let mut is_expanded = false;
1535 while let Some(expanded_hunk) = expanded_hunks.peek() {
1536 match expanded_hunk
1537 .hunk_range
1538 .start
1539 .cmp(&multi_buffer_range.start, &buffer_snapshot)
1540 {
1541 Ordering::Less => {
1542 expanded_hunks.next();
1543 }
1544 Ordering::Equal => {
1545 is_expanded = true;
1546 break;
1547 }
1548 Ordering::Greater => {
1549 break;
1550 }
1551 }
1552 }
1553 match status {
1554 DiffHunkStatus::Added => {}
1555 DiffHunkStatus::Modified => {}
1556 DiffHunkStatus::Removed => {
1557 if is_expanded {
1558 return None;
1559 }
1560 }
1561 }
1562 }
1563
1564 Some(display_hunk)
1565 })
1566 .dedup()
1567 .map(|hunk| (hunk, None))
1568 .collect();
1569
1570 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1571 for (hunk, hitbox) in &mut display_hunks {
1572 if let DisplayDiffHunk::Unfolded { .. } = hunk {
1573 let hunk_bounds = Self::diff_hunk_bounds(
1574 snapshot,
1575 line_height,
1576 gutter_hitbox.bounds,
1577 &hunk,
1578 );
1579 *hitbox = Some(cx.insert_hitbox(hunk_bounds, true));
1580 };
1581 }
1582 }
1583
1584 display_hunks
1585 })
1586 }
1587
1588 #[allow(clippy::too_many_arguments)]
1589 fn layout_inline_blame(
1590 &self,
1591 display_row: DisplayRow,
1592 display_snapshot: &DisplaySnapshot,
1593 line_layout: &LineWithInvisibles,
1594 crease_trailer: Option<&CreaseTrailerLayout>,
1595 em_width: Pixels,
1596 content_origin: gpui::Point<Pixels>,
1597 scroll_pixel_position: gpui::Point<Pixels>,
1598 line_height: Pixels,
1599 cx: &mut WindowContext,
1600 ) -> Option<AnyElement> {
1601 if !self
1602 .editor
1603 .update(cx, |editor, cx| editor.render_git_blame_inline(cx))
1604 {
1605 return None;
1606 }
1607
1608 let workspace = self
1609 .editor
1610 .read(cx)
1611 .workspace
1612 .as_ref()
1613 .map(|(w, _)| w.clone());
1614
1615 let display_point = DisplayPoint::new(display_row, 0);
1616 let buffer_row = MultiBufferRow(display_point.to_point(display_snapshot).row);
1617
1618 let blame = self.editor.read(cx).blame.clone()?;
1619 let blame_entry = blame
1620 .update(cx, |blame, cx| {
1621 blame.blame_for_rows([Some(buffer_row)], cx).next()
1622 })
1623 .flatten()?;
1624
1625 let mut element =
1626 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1627
1628 let start_y = content_origin.y
1629 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1630
1631 let start_x = {
1632 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1633
1634 let line_end = if let Some(crease_trailer) = crease_trailer {
1635 crease_trailer.bounds.right()
1636 } else {
1637 content_origin.x - scroll_pixel_position.x + line_layout.width
1638 };
1639 let padded_line_end = line_end + em_width * INLINE_BLAME_PADDING_EM_WIDTHS;
1640
1641 let min_column_in_pixels = ProjectSettings::get_global(cx)
1642 .git
1643 .inline_blame
1644 .and_then(|settings| settings.min_column)
1645 .map(|col| self.column_pixels(col as usize, cx))
1646 .unwrap_or(px(0.));
1647 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1648
1649 cmp::max(padded_line_end, min_start)
1650 };
1651
1652 let absolute_offset = point(start_x, start_y);
1653 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), cx);
1654
1655 Some(element)
1656 }
1657
1658 #[allow(clippy::too_many_arguments)]
1659 fn layout_blame_entries(
1660 &self,
1661 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1662 em_width: Pixels,
1663 scroll_position: gpui::Point<f32>,
1664 line_height: Pixels,
1665 gutter_hitbox: &Hitbox,
1666 max_width: Option<Pixels>,
1667 cx: &mut WindowContext,
1668 ) -> Option<Vec<AnyElement>> {
1669 if !self
1670 .editor
1671 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1672 {
1673 return None;
1674 }
1675
1676 let blame = self.editor.read(cx).blame.clone()?;
1677 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1678 blame.blame_for_rows(buffer_rows, cx).collect()
1679 });
1680
1681 let width = if let Some(max_width) = max_width {
1682 AvailableSpace::Definite(max_width)
1683 } else {
1684 AvailableSpace::MaxContent
1685 };
1686 let scroll_top = scroll_position.y * line_height;
1687 let start_x = em_width;
1688
1689 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1690
1691 let shaped_lines = blamed_rows
1692 .into_iter()
1693 .enumerate()
1694 .flat_map(|(ix, blame_entry)| {
1695 if let Some(blame_entry) = blame_entry {
1696 let mut element = render_blame_entry(
1697 ix,
1698 &blame,
1699 blame_entry,
1700 &self.style,
1701 &mut last_used_color,
1702 self.editor.clone(),
1703 cx,
1704 );
1705
1706 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1707 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1708
1709 element.prepaint_as_root(
1710 absolute_offset,
1711 size(width, AvailableSpace::MinContent),
1712 cx,
1713 );
1714
1715 Some(element)
1716 } else {
1717 None
1718 }
1719 })
1720 .collect();
1721
1722 Some(shaped_lines)
1723 }
1724
1725 #[allow(clippy::too_many_arguments)]
1726 fn layout_indent_guides(
1727 &self,
1728 content_origin: gpui::Point<Pixels>,
1729 text_origin: gpui::Point<Pixels>,
1730 visible_buffer_range: Range<MultiBufferRow>,
1731 scroll_pixel_position: gpui::Point<Pixels>,
1732 line_height: Pixels,
1733 snapshot: &DisplaySnapshot,
1734 cx: &mut WindowContext,
1735 ) -> Option<Vec<IndentGuideLayout>> {
1736 let indent_guides = self.editor.update(cx, |editor, cx| {
1737 editor.indent_guides(visible_buffer_range, snapshot, cx)
1738 })?;
1739
1740 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1741 editor
1742 .find_active_indent_guide_indices(&indent_guides, snapshot, cx)
1743 .unwrap_or_default()
1744 });
1745
1746 Some(
1747 indent_guides
1748 .into_iter()
1749 .enumerate()
1750 .filter_map(|(i, indent_guide)| {
1751 let single_indent_width =
1752 self.column_pixels(indent_guide.tab_size as usize, cx);
1753 let total_width = single_indent_width * indent_guide.depth as f32;
1754 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1755 if start_x >= text_origin.x {
1756 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1757 indent_guide.multibuffer_row_range.clone(),
1758 line_height,
1759 snapshot,
1760 );
1761
1762 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1763
1764 Some(IndentGuideLayout {
1765 origin: point(start_x, start_y),
1766 length,
1767 single_indent_width,
1768 depth: indent_guide.depth,
1769 active: active_indent_guide_indices.contains(&i),
1770 settings: indent_guide.settings,
1771 })
1772 } else {
1773 None
1774 }
1775 })
1776 .collect(),
1777 )
1778 }
1779
1780 fn calculate_indent_guide_bounds(
1781 row_range: Range<MultiBufferRow>,
1782 line_height: Pixels,
1783 snapshot: &DisplaySnapshot,
1784 ) -> (gpui::Pixels, gpui::Pixels) {
1785 let start_point = Point::new(row_range.start.0, 0);
1786 let end_point = Point::new(row_range.end.0, 0);
1787
1788 let row_range = start_point.to_display_point(snapshot).row()
1789 ..end_point.to_display_point(snapshot).row();
1790
1791 let mut prev_line = start_point;
1792 prev_line.row = prev_line.row.saturating_sub(1);
1793 let prev_line = prev_line.to_display_point(snapshot).row();
1794
1795 let mut cons_line = end_point;
1796 cons_line.row += 1;
1797 let cons_line = cons_line.to_display_point(snapshot).row();
1798
1799 let mut offset_y = row_range.start.0 as f32 * line_height;
1800 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1801
1802 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1803 if row_range.end == cons_line {
1804 length += line_height;
1805 }
1806
1807 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1808 // we want to extend the indent guide to the start of the block.
1809 let mut block_height = 0;
1810 let mut block_offset = 0;
1811 let mut found_excerpt_header = false;
1812 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1813 if matches!(block, Block::ExcerptBoundary { .. }) {
1814 found_excerpt_header = true;
1815 break;
1816 }
1817 block_offset += block.height();
1818 block_height += block.height();
1819 }
1820 if !found_excerpt_header {
1821 offset_y -= block_offset as f32 * line_height;
1822 length += block_height as f32 * line_height;
1823 }
1824
1825 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1826 // we want to ensure that the indent guide stops before the excerpt header.
1827 let mut block_height = 0;
1828 let mut found_excerpt_header = false;
1829 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1830 if matches!(block, Block::ExcerptBoundary { .. }) {
1831 found_excerpt_header = true;
1832 }
1833 block_height += block.height();
1834 }
1835 if found_excerpt_header {
1836 length -= block_height as f32 * line_height;
1837 }
1838
1839 (offset_y, length)
1840 }
1841
1842 #[allow(clippy::too_many_arguments)]
1843 fn layout_run_indicators(
1844 &self,
1845 line_height: Pixels,
1846 range: Range<DisplayRow>,
1847 scroll_pixel_position: gpui::Point<Pixels>,
1848 gutter_dimensions: &GutterDimensions,
1849 gutter_hitbox: &Hitbox,
1850 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1851 snapshot: &EditorSnapshot,
1852 cx: &mut WindowContext,
1853 ) -> Vec<AnyElement> {
1854 self.editor.update(cx, |editor, cx| {
1855 let active_task_indicator_row =
1856 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1857 deployed_from_indicator,
1858 actions,
1859 ..
1860 })) = editor.context_menu.borrow().as_ref()
1861 {
1862 actions
1863 .tasks
1864 .as_ref()
1865 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1866 .or(*deployed_from_indicator)
1867 } else {
1868 None
1869 };
1870
1871 let offset_range_start = snapshot
1872 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1873 .to_offset(&snapshot.buffer_snapshot);
1874 let offset_range_end = snapshot
1875 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1876 .to_offset(&snapshot.buffer_snapshot);
1877
1878 editor
1879 .tasks
1880 .iter()
1881 .filter_map(|(_, tasks)| {
1882 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1883 return None;
1884 }
1885 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1886 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1887 let buffer_folded = snapshot
1888 .buffer_snapshot
1889 .buffer_line_for_row(multibuffer_row)
1890 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1891 .map(|buffer_id| editor.buffer_folded(buffer_id, cx))
1892 .unwrap_or(false);
1893 if buffer_folded {
1894 return None;
1895 }
1896
1897 if snapshot.is_line_folded(multibuffer_row) {
1898 // Skip folded indicators, unless it's the starting line of a fold.
1899 if multibuffer_row
1900 .0
1901 .checked_sub(1)
1902 .map_or(false, |previous_row| {
1903 snapshot.is_line_folded(MultiBufferRow(previous_row))
1904 })
1905 {
1906 return None;
1907 }
1908 }
1909 let display_row = multibuffer_point.to_display_point(snapshot).row();
1910 let button = editor.render_run_indicator(
1911 &self.style,
1912 Some(display_row) == active_task_indicator_row,
1913 display_row,
1914 cx,
1915 );
1916
1917 let button = prepaint_gutter_button(
1918 button,
1919 display_row,
1920 line_height,
1921 gutter_dimensions,
1922 scroll_pixel_position,
1923 gutter_hitbox,
1924 rows_with_hunk_bounds,
1925 cx,
1926 );
1927 Some(button)
1928 })
1929 .collect_vec()
1930 })
1931 }
1932
1933 #[allow(clippy::too_many_arguments)]
1934 fn layout_code_actions_indicator(
1935 &self,
1936 line_height: Pixels,
1937 newest_selection_head: DisplayPoint,
1938 scroll_pixel_position: gpui::Point<Pixels>,
1939 gutter_dimensions: &GutterDimensions,
1940 gutter_hitbox: &Hitbox,
1941 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1942 cx: &mut WindowContext,
1943 ) -> Option<AnyElement> {
1944 let mut active = false;
1945 let mut button = None;
1946 let row = newest_selection_head.row();
1947 self.editor.update(cx, |editor, cx| {
1948 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1949 deployed_from_indicator,
1950 ..
1951 })) = editor.context_menu.borrow().as_ref()
1952 {
1953 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1954 };
1955 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1956 });
1957
1958 let button = prepaint_gutter_button(
1959 button?,
1960 row,
1961 line_height,
1962 gutter_dimensions,
1963 scroll_pixel_position,
1964 gutter_hitbox,
1965 rows_with_hunk_bounds,
1966 cx,
1967 );
1968
1969 Some(button)
1970 }
1971
1972 fn get_participant_color(
1973 participant_index: Option<ParticipantIndex>,
1974 cx: &WindowContext,
1975 ) -> PlayerColor {
1976 if let Some(index) = participant_index {
1977 cx.theme().players().color_for_participant(index.0)
1978 } else {
1979 cx.theme().players().absent()
1980 }
1981 }
1982
1983 fn calculate_relative_line_numbers(
1984 &self,
1985 snapshot: &EditorSnapshot,
1986 rows: &Range<DisplayRow>,
1987 relative_to: Option<DisplayRow>,
1988 ) -> HashMap<DisplayRow, DisplayRowDelta> {
1989 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
1990 let Some(relative_to) = relative_to else {
1991 return relative_rows;
1992 };
1993
1994 let start = rows.start.min(relative_to);
1995 let end = rows.end.max(relative_to);
1996
1997 let buffer_rows = snapshot
1998 .buffer_rows(start)
1999 .take(1 + end.minus(start) as usize)
2000 .collect::<Vec<_>>();
2001
2002 let head_idx = relative_to.minus(start);
2003 let mut delta = 1;
2004 let mut i = head_idx + 1;
2005 while i < buffer_rows.len() as u32 {
2006 if buffer_rows[i as usize].is_some() {
2007 if rows.contains(&DisplayRow(i + start.0)) {
2008 relative_rows.insert(DisplayRow(i + start.0), delta);
2009 }
2010 delta += 1;
2011 }
2012 i += 1;
2013 }
2014 delta = 1;
2015 i = head_idx.min(buffer_rows.len() as u32 - 1);
2016 while i > 0 && buffer_rows[i as usize].is_none() {
2017 i -= 1;
2018 }
2019
2020 while i > 0 {
2021 i -= 1;
2022 if buffer_rows[i as usize].is_some() {
2023 if rows.contains(&DisplayRow(i + start.0)) {
2024 relative_rows.insert(DisplayRow(i + start.0), delta);
2025 }
2026 delta += 1;
2027 }
2028 }
2029
2030 relative_rows
2031 }
2032
2033 #[allow(clippy::too_many_arguments)]
2034 fn layout_line_numbers(
2035 &self,
2036 gutter_hitbox: Option<&Hitbox>,
2037 gutter_dimensions: GutterDimensions,
2038 line_height: Pixels,
2039 scroll_position: gpui::Point<f32>,
2040 rows: Range<DisplayRow>,
2041 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
2042 newest_selection_head: Option<DisplayPoint>,
2043 snapshot: &EditorSnapshot,
2044 cx: &mut WindowContext,
2045 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2046 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2047 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2048 });
2049 if !include_line_numbers {
2050 return Arc::default();
2051 }
2052
2053 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2054 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2055 let newest = editor.selections.newest::<Point>(cx);
2056 SelectionLayout::new(
2057 newest,
2058 editor.selections.line_mode,
2059 editor.cursor_shape,
2060 &snapshot.display_snapshot,
2061 true,
2062 true,
2063 None,
2064 )
2065 .head
2066 });
2067 let is_relative = editor.should_use_relative_line_numbers(cx);
2068 (newest_selection_head, is_relative)
2069 });
2070
2071 let relative_to = if is_relative {
2072 Some(newest_selection_head.row())
2073 } else {
2074 None
2075 };
2076 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2077 let mut line_number = String::new();
2078 let line_numbers = buffer_rows
2079 .into_iter()
2080 .enumerate()
2081 .flat_map(|(ix, buffer_row)| {
2082 let buffer_row = buffer_row?;
2083 line_number.clear();
2084 let display_row = DisplayRow(rows.start.0 + ix as u32);
2085 let non_relative_number = buffer_row.0 + 1;
2086 let number = relative_rows
2087 .get(&display_row)
2088 .unwrap_or(&non_relative_number);
2089 write!(&mut line_number, "{number}").unwrap();
2090
2091 let color = cx.theme().colors().editor_line_number;
2092 let shaped_line = self
2093 .shape_line_number(SharedString::from(&line_number), color, cx)
2094 .log_err()?;
2095 let scroll_top = scroll_position.y * line_height;
2096 let line_origin = gutter_hitbox.map(|hitbox| {
2097 hitbox.origin
2098 + point(
2099 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2100 ix as f32 * line_height - (scroll_top % line_height),
2101 )
2102 });
2103
2104 #[cfg(not(test))]
2105 let hitbox = line_origin.map(|line_origin| {
2106 cx.insert_hitbox(
2107 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2108 false,
2109 )
2110 });
2111 #[cfg(test)]
2112 let hitbox = {
2113 let _ = line_origin;
2114 None
2115 };
2116
2117 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2118 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2119 let line_number = LineNumberLayout {
2120 shaped_line,
2121 hitbox,
2122 display_row,
2123 };
2124 Some((multi_buffer_row, line_number))
2125 })
2126 .collect();
2127 Arc::new(line_numbers)
2128 }
2129
2130 fn layout_crease_toggles(
2131 &self,
2132 rows: Range<DisplayRow>,
2133 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
2134 active_rows: &BTreeMap<DisplayRow, bool>,
2135 snapshot: &EditorSnapshot,
2136 cx: &mut WindowContext,
2137 ) -> Vec<Option<AnyElement>> {
2138 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2139 && snapshot.mode == EditorMode::Full
2140 && self.editor.read(cx).is_singleton(cx);
2141 if include_fold_statuses {
2142 buffer_rows
2143 .into_iter()
2144 .enumerate()
2145 .map(|(ix, row)| {
2146 if let Some(multibuffer_row) = row {
2147 let display_row = DisplayRow(rows.start.0 + ix as u32);
2148 let active = active_rows.contains_key(&display_row);
2149 snapshot.render_crease_toggle(
2150 multibuffer_row,
2151 active,
2152 self.editor.clone(),
2153 cx,
2154 )
2155 } else {
2156 None
2157 }
2158 })
2159 .collect()
2160 } else {
2161 Vec::new()
2162 }
2163 }
2164
2165 fn layout_crease_trailers(
2166 &self,
2167 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
2168 snapshot: &EditorSnapshot,
2169 cx: &mut WindowContext,
2170 ) -> Vec<Option<AnyElement>> {
2171 buffer_rows
2172 .into_iter()
2173 .map(|row| {
2174 if let Some(multibuffer_row) = row {
2175 snapshot.render_crease_trailer(multibuffer_row, cx)
2176 } else {
2177 None
2178 }
2179 })
2180 .collect()
2181 }
2182
2183 fn layout_lines(
2184 rows: Range<DisplayRow>,
2185 snapshot: &EditorSnapshot,
2186 style: &EditorStyle,
2187 editor_width: Pixels,
2188 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2189 cx: &mut WindowContext,
2190 ) -> Vec<LineWithInvisibles> {
2191 if rows.start >= rows.end {
2192 return Vec::new();
2193 }
2194
2195 // Show the placeholder when the editor is empty
2196 if snapshot.is_empty() {
2197 let font_size = style.text.font_size.to_pixels(cx.rem_size());
2198 let placeholder_color = cx.theme().colors().text_placeholder;
2199 let placeholder_text = snapshot.placeholder_text();
2200
2201 let placeholder_lines = placeholder_text
2202 .as_ref()
2203 .map_or("", AsRef::as_ref)
2204 .split('\n')
2205 .skip(rows.start.0 as usize)
2206 .chain(iter::repeat(""))
2207 .take(rows.len());
2208 placeholder_lines
2209 .filter_map(move |line| {
2210 let run = TextRun {
2211 len: line.len(),
2212 font: style.text.font(),
2213 color: placeholder_color,
2214 background_color: None,
2215 underline: Default::default(),
2216 strikethrough: None,
2217 };
2218 cx.text_system()
2219 .shape_line(line.to_string().into(), font_size, &[run])
2220 .log_err()
2221 })
2222 .map(|line| LineWithInvisibles {
2223 width: line.width,
2224 len: line.len,
2225 fragments: smallvec![LineFragment::Text(line)],
2226 invisibles: Vec::new(),
2227 font_size,
2228 })
2229 .collect()
2230 } else {
2231 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2232 LineWithInvisibles::from_chunks(
2233 chunks,
2234 &style,
2235 MAX_LINE_LEN,
2236 rows.len(),
2237 snapshot.mode,
2238 editor_width,
2239 is_row_soft_wrapped,
2240 cx,
2241 )
2242 }
2243 }
2244
2245 fn prepaint_lines(
2246 &self,
2247 start_row: DisplayRow,
2248 line_layouts: &mut [LineWithInvisibles],
2249 line_height: Pixels,
2250 scroll_pixel_position: gpui::Point<Pixels>,
2251 content_origin: gpui::Point<Pixels>,
2252 cx: &mut WindowContext,
2253 ) -> SmallVec<[AnyElement; 1]> {
2254 let mut line_elements = SmallVec::new();
2255 for (ix, line) in line_layouts.iter_mut().enumerate() {
2256 let row = start_row + DisplayRow(ix as u32);
2257 line.prepaint(
2258 line_height,
2259 scroll_pixel_position,
2260 row,
2261 content_origin,
2262 &mut line_elements,
2263 cx,
2264 );
2265 }
2266 line_elements
2267 }
2268
2269 #[allow(clippy::too_many_arguments)]
2270 fn render_block(
2271 &self,
2272 block: &Block,
2273 available_width: AvailableSpace,
2274 block_id: BlockId,
2275 block_row_start: DisplayRow,
2276 snapshot: &EditorSnapshot,
2277 text_x: Pixels,
2278 rows: &Range<DisplayRow>,
2279 line_layouts: &[LineWithInvisibles],
2280 gutter_dimensions: &GutterDimensions,
2281 line_height: Pixels,
2282 em_width: Pixels,
2283 text_hitbox: &Hitbox,
2284 editor_width: Pixels,
2285 scroll_width: &mut Pixels,
2286 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2287 selections: &[Selection<Point>],
2288 selected_buffer_ids: &Vec<BufferId>,
2289 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2290 sticky_header_excerpt_id: Option<ExcerptId>,
2291 cx: &mut WindowContext,
2292 ) -> (AnyElement, Size<Pixels>) {
2293 let mut element = match block {
2294 Block::Custom(block) => {
2295 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2296 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2297 let align_to = block_start.to_display_point(snapshot);
2298 let anchor_x = text_x
2299 + if rows.contains(&align_to.row()) {
2300 line_layouts[align_to.row().minus(rows.start) as usize]
2301 .x_for_index(align_to.column() as usize)
2302 } else {
2303 layout_line(
2304 align_to.row(),
2305 snapshot,
2306 &self.style,
2307 editor_width,
2308 is_row_soft_wrapped,
2309 cx,
2310 )
2311 .x_for_index(align_to.column() as usize)
2312 };
2313
2314 let selected = selections
2315 .binary_search_by(|selection| {
2316 if selection.end <= block_start {
2317 Ordering::Less
2318 } else if selection.start >= block_end {
2319 Ordering::Greater
2320 } else {
2321 Ordering::Equal
2322 }
2323 })
2324 .is_ok();
2325
2326 div()
2327 .size_full()
2328 .child(block.render(&mut BlockContext {
2329 context: cx,
2330 anchor_x,
2331 gutter_dimensions,
2332 line_height,
2333 em_width,
2334 block_id,
2335 selected,
2336 max_width: text_hitbox.size.width.max(*scroll_width),
2337 editor_style: &self.style,
2338 }))
2339 .into_any()
2340 }
2341
2342 Block::FoldedBuffer {
2343 first_excerpt,
2344 prev_excerpt,
2345 show_excerpt_controls,
2346 height,
2347 } => {
2348 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2349 let icon_offset = gutter_dimensions.width
2350 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2351 let mut result = v_flex().id(block_id).w_full();
2352
2353 if let Some(prev_excerpt) = prev_excerpt {
2354 if *show_excerpt_controls {
2355 result = result.child(
2356 h_flex()
2357 .id("expand_down_hit_area")
2358 .w(icon_offset)
2359 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2360 .flex_none()
2361 .justify_end()
2362 .child(self.render_expand_excerpt_button(
2363 IconName::ArrowDownFromLine,
2364 None,
2365 cx,
2366 ))
2367 .on_click(cx.listener_for(&self.editor, {
2368 let excerpt_id = prev_excerpt.id;
2369 let direction = ExpandExcerptDirection::Down;
2370 move |editor, _, cx| {
2371 editor.expand_excerpt(excerpt_id, direction, cx);
2372 cx.stop_propagation();
2373 }
2374 })),
2375 );
2376 }
2377 }
2378
2379 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2380 result
2381 .child(self.render_buffer_header(first_excerpt, true, selected, jump_data, cx))
2382 .into_any_element()
2383 }
2384
2385 Block::ExcerptBoundary {
2386 prev_excerpt,
2387 next_excerpt,
2388 show_excerpt_controls,
2389 height,
2390 starts_new_buffer,
2391 } => {
2392 let icon_offset = gutter_dimensions.width
2393 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2394 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height();
2395 let color = cx.theme().colors().clone();
2396 let hover_color = color.border_variant.opacity(0.5);
2397 let focus_handle = self.editor.focus_handle(cx).clone();
2398
2399 let mut result = v_flex().id(block_id).w_full();
2400 let expand_area = |id: SharedString| {
2401 h_flex()
2402 .id(id)
2403 .w_full()
2404 .cursor_pointer()
2405 .block_mouse_down()
2406 .on_mouse_move(|_, cx| cx.stop_propagation())
2407 .hover(|style| style.bg(hover_color))
2408 .tooltip({
2409 let focus_handle = focus_handle.clone();
2410 move |cx| {
2411 Tooltip::for_action_in(
2412 "Expand Excerpt",
2413 &ExpandExcerpts { lines: 0 },
2414 &focus_handle,
2415 cx,
2416 )
2417 }
2418 })
2419 };
2420
2421 if let Some(prev_excerpt) = prev_excerpt {
2422 if *show_excerpt_controls {
2423 let group_name = "expand-down";
2424
2425 result = result.child(
2426 expand_area(format!("block-{}-down", block_id).into())
2427 .group(group_name)
2428 .child(
2429 h_flex()
2430 .w(icon_offset)
2431 .h(header_height)
2432 .flex_none()
2433 .justify_end()
2434 .child(self.render_expand_excerpt_button(
2435 IconName::ArrowDownFromLine,
2436 Some(group_name.to_string()),
2437 cx,
2438 )),
2439 )
2440 .on_click(cx.listener_for(&self.editor, {
2441 let excerpt_id = prev_excerpt.id;
2442 let direction = ExpandExcerptDirection::Down;
2443 move |editor, _, cx| {
2444 editor.expand_excerpt(excerpt_id, direction, cx);
2445 cx.stop_propagation();
2446 }
2447 })),
2448 );
2449 }
2450 }
2451
2452 if let Some(next_excerpt) = next_excerpt {
2453 let jump_data =
2454 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2455
2456 if *starts_new_buffer {
2457 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2458 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2459
2460 result = result.child(self.render_buffer_header(
2461 next_excerpt,
2462 false,
2463 selected,
2464 jump_data,
2465 cx,
2466 ));
2467 } else {
2468 result =
2469 result.child(div().h(FILE_HEADER_HEIGHT as f32 * cx.line_height()));
2470 }
2471
2472 if *show_excerpt_controls {
2473 let group_name = "expand-up-first";
2474
2475 result = result.child(
2476 h_flex().group(group_name).child(
2477 expand_area(format!("block-{}-up-first", block_id).into())
2478 .h(header_height)
2479 .child(
2480 h_flex()
2481 .w(icon_offset)
2482 .h(header_height)
2483 .flex_none()
2484 .justify_end()
2485 .child(self.render_expand_excerpt_button(
2486 IconName::ArrowUpFromLine,
2487 Some(group_name.to_string()),
2488 cx,
2489 )),
2490 )
2491 .on_click(cx.listener_for(&self.editor, {
2492 let excerpt_id = next_excerpt.id;
2493 let direction = ExpandExcerptDirection::Up;
2494 move |editor, _, cx| {
2495 editor.expand_excerpt(excerpt_id, direction, cx);
2496 cx.stop_propagation();
2497 }
2498 })),
2499 ),
2500 );
2501 }
2502 } else {
2503 let group_name = "expand-up-subsequent";
2504
2505 if *show_excerpt_controls {
2506 result = result.child(
2507 h_flex()
2508 .relative()
2509 .group(group_name)
2510 .child(
2511 div()
2512 .top(px(0.))
2513 .absolute()
2514 .w_full()
2515 .h_px()
2516 .bg(color.border_variant),
2517 )
2518 .child(
2519 expand_area(format!("block-{}-up", block_id).into())
2520 .h(header_height)
2521 .child(
2522 h_flex()
2523 .w(icon_offset)
2524 .h(header_height)
2525 .flex_none()
2526 .justify_end()
2527 .child(if *show_excerpt_controls {
2528 self.render_expand_excerpt_button(
2529 IconName::ArrowUpFromLine,
2530 Some(group_name.to_string()),
2531 cx,
2532 )
2533 } else {
2534 ButtonLike::new("jump-icon")
2535 .style(ButtonStyle::Transparent)
2536 .child(
2537 svg()
2538 .path(
2539 IconName::ArrowUpRight
2540 .path(),
2541 )
2542 .size(IconSize::XSmall.rems())
2543 .text_color(
2544 color.border_variant,
2545 )
2546 .group_hover(
2547 group_name,
2548 |style| {
2549 style.text_color(
2550 color.border,
2551 )
2552 },
2553 ),
2554 )
2555 }),
2556 )
2557 .on_click(cx.listener_for(&self.editor, {
2558 let excerpt_id = next_excerpt.id;
2559 let direction = ExpandExcerptDirection::Up;
2560 move |editor, _, cx| {
2561 editor
2562 .expand_excerpt(excerpt_id, direction, cx);
2563 cx.stop_propagation();
2564 }
2565 })),
2566 ),
2567 );
2568 }
2569 };
2570 }
2571
2572 result.into_any()
2573 }
2574 };
2575
2576 // Discover the element's content height, then round up to the nearest multiple of line height.
2577 let preliminary_size =
2578 element.layout_as_root(size(available_width, AvailableSpace::MinContent), cx);
2579 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2580 let final_size = if preliminary_size.height == quantized_height {
2581 preliminary_size
2582 } else {
2583 element.layout_as_root(size(available_width, quantized_height.into()), cx)
2584 };
2585
2586 if let BlockId::Custom(custom_block_id) = block_id {
2587 if block.height() > 0 {
2588 let element_height_in_lines =
2589 ((final_size.height / line_height).ceil() as u32).max(1);
2590 if element_height_in_lines != block.height() {
2591 resized_blocks.insert(custom_block_id, element_height_in_lines);
2592 }
2593 }
2594 }
2595
2596 (element, final_size)
2597 }
2598
2599 fn render_buffer_header(
2600 &self,
2601 for_excerpt: &ExcerptInfo,
2602 is_folded: bool,
2603 is_selected: bool,
2604 jump_data: JumpData,
2605 cx: &mut WindowContext,
2606 ) -> Div {
2607 let include_root = self
2608 .editor
2609 .read(cx)
2610 .project
2611 .as_ref()
2612 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2613 .unwrap_or_default();
2614 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2615 let filename = path
2616 .as_ref()
2617 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2618 let parent_path = path
2619 .as_ref()
2620 .and_then(|path| Some(path.parent()?.to_string_lossy().to_string() + "/"));
2621 let focus_handle = self.editor.focus_handle(cx);
2622 let colors = cx.theme().colors();
2623
2624 div()
2625 .px_2()
2626 .pt_2()
2627 .w_full()
2628 .h(FILE_HEADER_HEIGHT as f32 * cx.line_height())
2629 .child(
2630 h_flex()
2631 .size_full()
2632 .gap_2()
2633 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2634 .pl_0p5()
2635 .pr_5()
2636 .rounded_md()
2637 .shadow_md()
2638 .border_1()
2639 .map(|div| {
2640 let border_color = if is_selected && is_folded {
2641 colors.border_focused
2642 } else {
2643 colors.border
2644 };
2645 div.border_color(border_color)
2646 })
2647 .bg(colors.editor_subheader_background)
2648 .hover(|style| style.bg(colors.element_hover))
2649 .map(|header| {
2650 let editor = self.editor.clone();
2651 let buffer_id = for_excerpt.buffer_id;
2652 let toggle_chevron_icon =
2653 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2654 header.child(
2655 div()
2656 .hover(|style| style.bg(colors.element_selected))
2657 .rounded_sm()
2658 .child(
2659 ButtonLike::new("toggle-buffer-fold")
2660 .style(ui::ButtonStyle::Transparent)
2661 .size(ButtonSize::Large)
2662 .width(px(30.).into())
2663 .children(toggle_chevron_icon)
2664 .tooltip({
2665 let focus_handle = focus_handle.clone();
2666 move |cx| {
2667 Tooltip::for_action_in(
2668 "Toggle Excerpt Fold",
2669 &ToggleFold,
2670 &focus_handle,
2671 cx,
2672 )
2673 }
2674 })
2675 .on_click(move |_, cx| {
2676 if is_folded {
2677 editor.update(cx, |editor, cx| {
2678 editor.unfold_buffer(buffer_id, cx);
2679 });
2680 } else {
2681 editor.update(cx, |editor, cx| {
2682 editor.fold_buffer(buffer_id, cx);
2683 });
2684 }
2685 }),
2686 ),
2687 )
2688 })
2689 .child(
2690 h_flex()
2691 .cursor_pointer()
2692 .id("path header block")
2693 .size_full()
2694 .justify_between()
2695 .child(
2696 h_flex()
2697 .gap_2()
2698 .child(
2699 filename
2700 .map(SharedString::from)
2701 .unwrap_or_else(|| "untitled".into()),
2702 )
2703 .when_some(parent_path, |then, path| {
2704 then.child(div().child(path).text_color(colors.text_muted))
2705 }),
2706 )
2707 .when(is_selected, |el| {
2708 el.child(
2709 h_flex()
2710 .id("jump-to-file-button")
2711 .gap_2p5()
2712 .child(Label::new("Jump To File"))
2713 .children(
2714 KeyBinding::for_action_in(
2715 &OpenExcerpts,
2716 &focus_handle,
2717 cx,
2718 )
2719 .map(|binding| binding.into_any_element()),
2720 ),
2721 )
2722 })
2723 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
2724 .on_click(cx.listener_for(&self.editor, {
2725 move |editor, e: &ClickEvent, cx| {
2726 editor.open_excerpts_common(
2727 Some(jump_data.clone()),
2728 e.down.modifiers.secondary(),
2729 cx,
2730 );
2731 }
2732 })),
2733 ),
2734 )
2735 }
2736
2737 fn render_expand_excerpt_button(
2738 &self,
2739 icon: IconName,
2740 group_name: impl Into<Option<String>>,
2741 cx: &mut WindowContext,
2742 ) -> ButtonLike {
2743 let group_name = group_name.into();
2744 ButtonLike::new("expand-icon")
2745 .style(ButtonStyle::Transparent)
2746 .child(
2747 svg()
2748 .path(icon.path())
2749 .size(IconSize::XSmall.rems())
2750 .text_color(cx.theme().colors().editor_line_number)
2751 .when_some(group_name, |svg, group_name| {
2752 svg.group_hover(group_name, |style| {
2753 style.text_color(cx.theme().colors().editor_active_line_number)
2754 })
2755 }),
2756 )
2757 }
2758
2759 #[allow(clippy::too_many_arguments)]
2760 fn render_blocks(
2761 &self,
2762 rows: Range<DisplayRow>,
2763 snapshot: &EditorSnapshot,
2764 hitbox: &Hitbox,
2765 text_hitbox: &Hitbox,
2766 editor_width: Pixels,
2767 scroll_width: &mut Pixels,
2768 gutter_dimensions: &GutterDimensions,
2769 em_width: Pixels,
2770 text_x: Pixels,
2771 line_height: Pixels,
2772 line_layouts: &[LineWithInvisibles],
2773 selections: &[Selection<Point>],
2774 selected_buffer_ids: &Vec<BufferId>,
2775 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2776 sticky_header_excerpt_id: Option<ExcerptId>,
2777 cx: &mut WindowContext,
2778 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2779 let (fixed_blocks, non_fixed_blocks) = snapshot
2780 .blocks_in_range(rows.clone())
2781 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2782
2783 let mut focused_block = self
2784 .editor
2785 .update(cx, |editor, _| editor.take_focused_block());
2786 let mut fixed_block_max_width = Pixels::ZERO;
2787 let mut blocks = Vec::new();
2788 let mut resized_blocks = HashMap::default();
2789
2790 for (row, block) in fixed_blocks {
2791 let block_id = block.id();
2792
2793 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2794 focused_block = None;
2795 }
2796
2797 let (element, element_size) = self.render_block(
2798 block,
2799 AvailableSpace::MinContent,
2800 block_id,
2801 row,
2802 snapshot,
2803 text_x,
2804 &rows,
2805 line_layouts,
2806 gutter_dimensions,
2807 line_height,
2808 em_width,
2809 text_hitbox,
2810 editor_width,
2811 scroll_width,
2812 &mut resized_blocks,
2813 selections,
2814 selected_buffer_ids,
2815 is_row_soft_wrapped,
2816 sticky_header_excerpt_id,
2817 cx,
2818 );
2819 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2820 blocks.push(BlockLayout {
2821 id: block_id,
2822 row: Some(row),
2823 element,
2824 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2825 style: BlockStyle::Fixed,
2826 });
2827 }
2828
2829 for (row, block) in non_fixed_blocks {
2830 let style = block.style();
2831 let width = match style {
2832 BlockStyle::Sticky => hitbox.size.width,
2833 BlockStyle::Flex => hitbox
2834 .size
2835 .width
2836 .max(fixed_block_max_width)
2837 .max(gutter_dimensions.width + *scroll_width),
2838 BlockStyle::Fixed => unreachable!(),
2839 };
2840 let block_id = block.id();
2841
2842 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2843 focused_block = None;
2844 }
2845
2846 let (element, element_size) = self.render_block(
2847 block,
2848 width.into(),
2849 block_id,
2850 row,
2851 snapshot,
2852 text_x,
2853 &rows,
2854 line_layouts,
2855 gutter_dimensions,
2856 line_height,
2857 em_width,
2858 text_hitbox,
2859 editor_width,
2860 scroll_width,
2861 &mut resized_blocks,
2862 selections,
2863 selected_buffer_ids,
2864 is_row_soft_wrapped,
2865 sticky_header_excerpt_id,
2866 cx,
2867 );
2868
2869 blocks.push(BlockLayout {
2870 id: block_id,
2871 row: Some(row),
2872 element,
2873 available_space: size(width.into(), element_size.height.into()),
2874 style,
2875 });
2876 }
2877
2878 if let Some(focused_block) = focused_block {
2879 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2880 if focus_handle.is_focused(cx) {
2881 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2882 let style = block.style();
2883 let width = match style {
2884 BlockStyle::Fixed => AvailableSpace::MinContent,
2885 BlockStyle::Flex => AvailableSpace::Definite(
2886 hitbox
2887 .size
2888 .width
2889 .max(fixed_block_max_width)
2890 .max(gutter_dimensions.width + *scroll_width),
2891 ),
2892 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2893 };
2894
2895 let (element, element_size) = self.render_block(
2896 &block,
2897 width,
2898 focused_block.id,
2899 rows.end,
2900 snapshot,
2901 text_x,
2902 &rows,
2903 line_layouts,
2904 gutter_dimensions,
2905 line_height,
2906 em_width,
2907 text_hitbox,
2908 editor_width,
2909 scroll_width,
2910 &mut resized_blocks,
2911 selections,
2912 selected_buffer_ids,
2913 is_row_soft_wrapped,
2914 sticky_header_excerpt_id,
2915 cx,
2916 );
2917
2918 blocks.push(BlockLayout {
2919 id: block.id(),
2920 row: None,
2921 element,
2922 available_space: size(width, element_size.height.into()),
2923 style,
2924 });
2925 }
2926 }
2927 }
2928 }
2929
2930 if resized_blocks.is_empty() {
2931 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2932 Ok(blocks)
2933 } else {
2934 Err(resized_blocks)
2935 }
2936 }
2937
2938 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2939 /// a restart of rendering for the editor based on the new sizes.
2940 fn layout_blocks(
2941 &self,
2942 blocks: &mut Vec<BlockLayout>,
2943 block_starts: &mut HashSet<DisplayRow>,
2944 hitbox: &Hitbox,
2945 line_height: Pixels,
2946 scroll_pixel_position: gpui::Point<Pixels>,
2947 cx: &mut WindowContext,
2948 ) {
2949 for block in blocks {
2950 let mut origin = if let Some(row) = block.row {
2951 block_starts.insert(row);
2952 hitbox.origin
2953 + point(
2954 Pixels::ZERO,
2955 row.as_f32() * line_height - scroll_pixel_position.y,
2956 )
2957 } else {
2958 // Position the block outside the visible area
2959 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2960 };
2961
2962 if !matches!(block.style, BlockStyle::Sticky) {
2963 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2964 }
2965
2966 let focus_handle = block
2967 .element
2968 .prepaint_as_root(origin, block.available_space, cx);
2969
2970 if let Some(focus_handle) = focus_handle {
2971 self.editor.update(cx, |editor, _cx| {
2972 editor.set_focused_block(FocusedBlock {
2973 id: block.id,
2974 focus_handle: focus_handle.downgrade(),
2975 });
2976 });
2977 }
2978 }
2979 }
2980
2981 #[allow(clippy::too_many_arguments)]
2982 fn layout_sticky_buffer_header(
2983 &self,
2984 StickyHeaderExcerpt {
2985 excerpt,
2986 next_excerpt_controls_present,
2987 next_buffer_row,
2988 }: StickyHeaderExcerpt<'_>,
2989 scroll_position: f32,
2990 line_height: Pixels,
2991 snapshot: &EditorSnapshot,
2992 hitbox: &Hitbox,
2993 selected_buffer_ids: &Vec<BufferId>,
2994 cx: &mut WindowContext,
2995 ) -> AnyElement {
2996 let jump_data = header_jump_data(
2997 snapshot,
2998 DisplayRow(scroll_position as u32),
2999 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3000 excerpt,
3001 );
3002
3003 let editor_bg_color = cx.theme().colors().editor_background;
3004
3005 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3006
3007 let mut header = v_flex()
3008 .relative()
3009 .child(
3010 div()
3011 .w(hitbox.bounds.size.width)
3012 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3013 .bg(linear_gradient(
3014 0.,
3015 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3016 linear_color_stop(editor_bg_color, 0.6),
3017 ))
3018 .absolute()
3019 .top_0(),
3020 )
3021 .child(
3022 self.render_buffer_header(excerpt, false, selected, jump_data, cx)
3023 .into_any_element(),
3024 )
3025 .into_any_element();
3026
3027 let mut origin = hitbox.origin;
3028
3029 if let Some(next_buffer_row) = next_buffer_row {
3030 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3031
3032 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3033
3034 if next_excerpt_controls_present {
3035 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3036 }
3037
3038 let offset = scroll_position - max_row as f32;
3039
3040 if offset > 0.0 {
3041 origin.y -= Pixels(offset) * line_height;
3042 }
3043 }
3044
3045 let size = size(
3046 AvailableSpace::Definite(hitbox.size.width),
3047 AvailableSpace::MinContent,
3048 );
3049
3050 header.prepaint_as_root(origin, size, cx);
3051
3052 header
3053 }
3054
3055 #[allow(clippy::too_many_arguments)]
3056 fn layout_context_menu(
3057 &self,
3058 line_height: Pixels,
3059 text_hitbox: &Hitbox,
3060 content_origin: gpui::Point<Pixels>,
3061 start_row: DisplayRow,
3062 scroll_pixel_position: gpui::Point<Pixels>,
3063 line_layouts: &[LineWithInvisibles],
3064 newest_selection_head: DisplayPoint,
3065 gutter_overshoot: Pixels,
3066 cx: &mut WindowContext,
3067 ) {
3068 let Some(context_menu_origin) = self
3069 .editor
3070 .read(cx)
3071 .context_menu_origin(newest_selection_head)
3072 else {
3073 return;
3074 };
3075 let target_position = content_origin
3076 + match context_menu_origin {
3077 crate::ContextMenuOrigin::EditorPoint(display_point) => {
3078 let cursor_row_layout =
3079 &line_layouts[display_point.row().minus(start_row) as usize];
3080 gpui::Point {
3081 x: cmp::max(
3082 px(0.),
3083 cursor_row_layout.x_for_index(display_point.column() as usize)
3084 - scroll_pixel_position.x,
3085 ),
3086 y: cmp::max(
3087 px(0.),
3088 display_point.row().next_row().as_f32() * line_height
3089 - scroll_pixel_position.y,
3090 ),
3091 }
3092 }
3093 crate::ContextMenuOrigin::GutterIndicator(row) => {
3094 // 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
3095 // text field.
3096 gpui::Point {
3097 x: -gutter_overshoot,
3098 y: row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3099 }
3100 }
3101 };
3102
3103 let viewport_bounds = Bounds::new(Default::default(), cx.viewport_size()).extend(Edges {
3104 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3105 ..Default::default()
3106 });
3107
3108 // If the context menu's max height won't fit below, then flip it above the line and display
3109 // it in reverse order. If the available space above is less than below.
3110 let unconstrained_max_height = line_height * 12. + POPOVER_Y_PADDING;
3111 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3112 let bottom_y_when_flipped = target_position.y - line_height;
3113 let available_above = bottom_y_when_flipped - text_hitbox.top();
3114 let available_below = text_hitbox.bottom() - target_position.y;
3115 let y_overflows_below = unconstrained_max_height > available_below;
3116 let mut y_is_flipped = y_overflows_below && available_above > available_below;
3117 let mut height = cmp::min(
3118 unconstrained_max_height,
3119 if y_is_flipped {
3120 available_above
3121 } else {
3122 available_below
3123 },
3124 );
3125
3126 // If less than 3 lines fit within the text bounds, instead fit within the window.
3127 if height < min_height {
3128 let available_above = bottom_y_when_flipped;
3129 let available_below = viewport_bounds.bottom() - target_position.y;
3130 if available_below > 3. * line_height {
3131 y_is_flipped = false;
3132 height = min_height;
3133 } else if available_above > 3. * line_height {
3134 y_is_flipped = true;
3135 height = min_height;
3136 } else if available_above > available_below {
3137 y_is_flipped = true;
3138 height = available_above;
3139 } else {
3140 y_is_flipped = false;
3141 height = available_below;
3142 }
3143 }
3144
3145 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3146
3147 // TODO(mgsloan): use viewport_bounds.width as a max width when rendering menu.
3148 let Some(mut menu_element) = self.editor.update(cx, |editor, cx| {
3149 editor.render_context_menu(&self.style, max_height_in_lines, cx)
3150 }) else {
3151 return;
3152 };
3153
3154 let menu_size = menu_element.layout_as_root(AvailableSpace::min_size(), cx);
3155 let menu_position = gpui::Point {
3156 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3157 // overflow. Include space for the scrollbar.
3158 x: target_position
3159 .x
3160 .min((viewport_bounds.right() - menu_size.width).max(Pixels::ZERO)),
3161 y: if y_is_flipped {
3162 bottom_y_when_flipped - menu_size.height
3163 } else {
3164 target_position.y
3165 },
3166 };
3167 cx.defer_draw(menu_element, menu_position, 1);
3168
3169 // Layout documentation aside
3170 let menu_bounds = Bounds::new(menu_position, menu_size);
3171 let max_menu_size = size(menu_size.width, unconstrained_max_height);
3172 let max_menu_bounds = if y_is_flipped {
3173 Bounds::new(
3174 point(
3175 menu_position.x,
3176 bottom_y_when_flipped - max_menu_size.height,
3177 ),
3178 max_menu_size,
3179 )
3180 } else {
3181 Bounds::new(target_position, max_menu_size)
3182 };
3183 self.layout_context_menu_aside(
3184 text_hitbox,
3185 y_is_flipped,
3186 menu_position,
3187 menu_bounds,
3188 max_menu_bounds,
3189 unconstrained_max_height,
3190 line_height,
3191 viewport_bounds,
3192 cx,
3193 );
3194 }
3195
3196 #[allow(clippy::too_many_arguments)]
3197 fn layout_context_menu_aside(
3198 &self,
3199 text_hitbox: &Hitbox,
3200 y_is_flipped: bool,
3201 menu_position: gpui::Point<Pixels>,
3202 menu_bounds: Bounds<Pixels>,
3203 max_menu_bounds: Bounds<Pixels>,
3204 max_height: Pixels,
3205 line_height: Pixels,
3206 viewport_bounds: Bounds<Pixels>,
3207 cx: &mut WindowContext,
3208 ) {
3209 let mut extend_amount = Edges::all(MENU_GAP);
3210 // Extend to include the cursored line to avoid overlapping it.
3211 if y_is_flipped {
3212 extend_amount.bottom = line_height;
3213 } else {
3214 extend_amount.top = line_height;
3215 }
3216 let target_bounds = menu_bounds.extend(extend_amount);
3217 let max_target_bounds = max_menu_bounds.extend(extend_amount);
3218
3219 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3220 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH {
3221 let max_width = cmp::min(
3222 available_within_viewport.right - px(1.),
3223 MENU_ASIDE_MAX_WIDTH,
3224 );
3225 let Some(mut aside) =
3226 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3227 else {
3228 return;
3229 };
3230 aside.layout_as_root(AvailableSpace::min_size(), cx);
3231 let right_position = point(target_bounds.right(), menu_position.y);
3232 Some((aside, right_position))
3233 } else {
3234 let max_size = size(
3235 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3236 // won't be needed here.
3237 cmp::min(
3238 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3239 viewport_bounds.right(),
3240 ),
3241 cmp::min(
3242 max_height,
3243 cmp::max(
3244 available_within_viewport.top,
3245 available_within_viewport.bottom,
3246 ),
3247 ) - POPOVER_Y_PADDING,
3248 );
3249 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3250 return;
3251 };
3252 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), cx);
3253
3254 let top_position = point(menu_position.x, target_bounds.top() - actual_size.height);
3255 let bottom_position = point(menu_position.x, target_bounds.bottom());
3256
3257 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3258 // Prefer to fit on the same side of the line as the menu, then on the other side of
3259 // the line.
3260 if !y_is_flipped && wanted.height < available.bottom {
3261 Some(bottom_position)
3262 } else if !y_is_flipped && wanted.height < available.top {
3263 Some(top_position)
3264 } else if y_is_flipped && wanted.height < available.top {
3265 Some(top_position)
3266 } else if y_is_flipped && wanted.height < available.bottom {
3267 Some(bottom_position)
3268 } else {
3269 None
3270 }
3271 };
3272
3273 // Prefer choosing a direction using max sizes rather than actual size for stability.
3274 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3275 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3276 let aside_position = fit_within(available_within_text, wanted)
3277 // Fallback: fit max size in window.
3278 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3279 // Fallback: fit actual size in window.
3280 .or_else(|| fit_within(available_within_viewport, actual_size));
3281
3282 aside_position.map(|position| (aside, position))
3283 };
3284
3285 // Skip drawing if it doesn't fit anywhere.
3286 if let Some((aside, position)) = positioned_aside {
3287 cx.defer_draw(aside, position, 1);
3288 }
3289 }
3290
3291 fn render_context_menu_aside(
3292 &self,
3293 max_size: Size<Pixels>,
3294 cx: &mut WindowContext,
3295 ) -> Option<AnyElement> {
3296 if max_size.width < px(100.) || max_size.height < px(12.) {
3297 None
3298 } else {
3299 self.editor.update(cx, |editor, cx| {
3300 editor.render_context_menu_aside(&self.style, max_size, cx)
3301 })
3302 }
3303 }
3304
3305 #[allow(clippy::too_many_arguments)]
3306 fn layout_inline_completion_popover(
3307 &self,
3308 text_bounds: &Bounds<Pixels>,
3309 editor_snapshot: &EditorSnapshot,
3310 visible_row_range: Range<DisplayRow>,
3311 scroll_top: f32,
3312 scroll_bottom: f32,
3313 line_layouts: &[LineWithInvisibles],
3314 line_height: Pixels,
3315 scroll_pixel_position: gpui::Point<Pixels>,
3316 editor_width: Pixels,
3317 style: &EditorStyle,
3318 cx: &mut WindowContext,
3319 ) -> Option<AnyElement> {
3320 const PADDING_X: Pixels = Pixels(24.);
3321 const PADDING_Y: Pixels = Pixels(2.);
3322
3323 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3324
3325 match &active_inline_completion.completion {
3326 InlineCompletion::Move(target_position) => {
3327 let tab_kbd = h_flex()
3328 .px_0p5()
3329 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
3330 .text_size(TextSize::XSmall.rems(cx))
3331 .text_color(cx.theme().colors().text)
3332 .child("tab");
3333
3334 let icon_container = div().mt(px(2.5)); // For optical alignment
3335
3336 let container_element = h_flex()
3337 .items_center()
3338 .py_0p5()
3339 .px_1()
3340 .gap_1()
3341 .bg(cx.theme().colors().text_accent.opacity(0.15))
3342 .border_1()
3343 .border_color(cx.theme().colors().text_accent.opacity(0.8))
3344 .rounded_md()
3345 .shadow_sm();
3346
3347 let target_display_point = target_position.to_display_point(editor_snapshot);
3348 if target_display_point.row().as_f32() < scroll_top {
3349 let mut element = container_element
3350 .child(tab_kbd)
3351 .child(Label::new("Jump to Edit").size(LabelSize::Small))
3352 .child(
3353 icon_container
3354 .child(Icon::new(IconName::ArrowUp).size(IconSize::Small)),
3355 )
3356 .into_any();
3357 let size = element.layout_as_root(AvailableSpace::min_size(), cx);
3358 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3359 element.prepaint_at(text_bounds.origin + offset, cx);
3360 Some(element)
3361 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3362 let mut element = container_element
3363 .child(tab_kbd)
3364 .child(Label::new("Jump to Edit").size(LabelSize::Small))
3365 .child(
3366 icon_container
3367 .child(Icon::new(IconName::ArrowDown).size(IconSize::Small)),
3368 )
3369 .into_any();
3370 let size = element.layout_as_root(AvailableSpace::min_size(), cx);
3371 let offset = point(
3372 (text_bounds.size.width - size.width) / 2.,
3373 text_bounds.size.height - size.height - PADDING_Y,
3374 );
3375 element.prepaint_at(text_bounds.origin + offset, cx);
3376 Some(element)
3377 } else {
3378 let mut element = container_element
3379 .child(tab_kbd)
3380 .child(Label::new("Jump to Edit").size(LabelSize::Small))
3381 .into_any();
3382
3383 let target_line_end = DisplayPoint::new(
3384 target_display_point.row(),
3385 editor_snapshot.line_len(target_display_point.row()),
3386 );
3387 let origin = self.editor.update(cx, |editor, cx| {
3388 editor.display_to_pixel_point(target_line_end, editor_snapshot, cx)
3389 })?;
3390 element.prepaint_as_root(
3391 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3392 AvailableSpace::min_size(),
3393 cx,
3394 );
3395 Some(element)
3396 }
3397 }
3398 InlineCompletion::Edit(edits) => {
3399 if self.editor.read(cx).has_active_completions_menu() {
3400 return None;
3401 }
3402
3403 let edit_start = edits
3404 .first()
3405 .unwrap()
3406 .0
3407 .start
3408 .to_display_point(editor_snapshot);
3409 let edit_end = edits
3410 .last()
3411 .unwrap()
3412 .0
3413 .end
3414 .to_display_point(editor_snapshot);
3415
3416 let is_visible = visible_row_range.contains(&edit_start.row())
3417 || visible_row_range.contains(&edit_end.row());
3418 if !is_visible {
3419 return None;
3420 }
3421
3422 if !hard_to_spot_single_edit(&edits, &editor_snapshot.buffer_snapshot)
3423 && all_edits_insertions_or_deletions(edits, &editor_snapshot.buffer_snapshot)
3424 {
3425 return None;
3426 }
3427
3428 let crate::InlineCompletionText::Edit { text, highlights } =
3429 crate::inline_completion_edit_text(editor_snapshot, edits, false, cx)
3430 else {
3431 return None;
3432 };
3433
3434 let line_count = text.lines().count() + 1;
3435
3436 let longest_row =
3437 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3438 let longest_line_width = if visible_row_range.contains(&longest_row) {
3439 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3440 } else {
3441 layout_line(
3442 longest_row,
3443 editor_snapshot,
3444 style,
3445 editor_width,
3446 |_| false,
3447 cx,
3448 )
3449 .width
3450 };
3451
3452 let styled_text =
3453 gpui::StyledText::new(text.clone()).with_highlights(&style.text, highlights);
3454
3455 let mut element = div()
3456 .bg(cx.theme().colors().editor_background)
3457 .border_1()
3458 .border_color(cx.theme().colors().border)
3459 .rounded_md()
3460 .px_1()
3461 .child(styled_text)
3462 .into_any();
3463
3464 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), cx);
3465 let is_fully_visible =
3466 editor_width >= longest_line_width + PADDING_X + element_bounds.width;
3467
3468 let origin = if is_fully_visible {
3469 text_bounds.origin
3470 + point(
3471 longest_line_width + PADDING_X - scroll_pixel_position.x,
3472 edit_start.row().as_f32() * line_height - scroll_pixel_position.y,
3473 )
3474 } else {
3475 let target_above =
3476 DisplayRow(edit_start.row().0.saturating_sub(line_count as u32));
3477 let row_target = if visible_row_range
3478 .contains(&DisplayRow(target_above.0.saturating_sub(1)))
3479 {
3480 target_above
3481 } else {
3482 DisplayRow(edit_end.row().0 + 1)
3483 };
3484
3485 text_bounds.origin
3486 + point(
3487 -scroll_pixel_position.x,
3488 row_target.as_f32() * line_height - scroll_pixel_position.y,
3489 )
3490 };
3491
3492 element.prepaint_as_root(origin, element_bounds.into(), cx);
3493 Some(element)
3494 }
3495 }
3496 }
3497
3498 fn layout_mouse_context_menu(
3499 &self,
3500 editor_snapshot: &EditorSnapshot,
3501 visible_range: Range<DisplayRow>,
3502 content_origin: gpui::Point<Pixels>,
3503 cx: &mut WindowContext,
3504 ) -> Option<AnyElement> {
3505 let position = self.editor.update(cx, |editor, cx| {
3506 let visible_start_point = editor.display_to_pixel_point(
3507 DisplayPoint::new(visible_range.start, 0),
3508 editor_snapshot,
3509 cx,
3510 )?;
3511 let visible_end_point = editor.display_to_pixel_point(
3512 DisplayPoint::new(visible_range.end, 0),
3513 editor_snapshot,
3514 cx,
3515 )?;
3516
3517 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3518 let (source_display_point, position) = match mouse_context_menu.position {
3519 MenuPosition::PinnedToScreen(point) => (None, point),
3520 MenuPosition::PinnedToEditor { source, offset } => {
3521 let source_display_point = source.to_display_point(editor_snapshot);
3522 let source_point = editor.to_pixel_point(source, editor_snapshot, cx)?;
3523 let position = content_origin + source_point + offset;
3524 (Some(source_display_point), position)
3525 }
3526 };
3527
3528 let source_included = source_display_point.map_or(true, |source_display_point| {
3529 visible_range
3530 .to_inclusive()
3531 .contains(&source_display_point.row())
3532 });
3533 let position_included =
3534 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3535 if !source_included && !position_included {
3536 None
3537 } else {
3538 Some(position)
3539 }
3540 })?;
3541
3542 let mut element = self.editor.update(cx, |editor, _| {
3543 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3544 let context_menu = mouse_context_menu.context_menu.clone();
3545
3546 Some(
3547 deferred(
3548 anchored()
3549 .position(position)
3550 .child(context_menu)
3551 .anchor(Corner::TopLeft)
3552 .snap_to_window_with_margin(px(8.)),
3553 )
3554 .with_priority(1)
3555 .into_any(),
3556 )
3557 })?;
3558
3559 element.prepaint_as_root(position, AvailableSpace::min_size(), cx);
3560 Some(element)
3561 }
3562
3563 #[allow(clippy::too_many_arguments)]
3564 fn layout_hover_popovers(
3565 &self,
3566 snapshot: &EditorSnapshot,
3567 hitbox: &Hitbox,
3568 text_hitbox: &Hitbox,
3569 visible_display_row_range: Range<DisplayRow>,
3570 content_origin: gpui::Point<Pixels>,
3571 scroll_pixel_position: gpui::Point<Pixels>,
3572 line_layouts: &[LineWithInvisibles],
3573 line_height: Pixels,
3574 em_width: Pixels,
3575 cx: &mut WindowContext,
3576 ) {
3577 struct MeasuredHoverPopover {
3578 element: AnyElement,
3579 size: Size<Pixels>,
3580 horizontal_offset: Pixels,
3581 }
3582
3583 let max_size = size(
3584 (120. * em_width) // Default size
3585 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3586 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3587 (16. * line_height) // Default size
3588 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3589 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3590 );
3591
3592 let hover_popovers = self.editor.update(cx, |editor, cx| {
3593 editor
3594 .hover_state
3595 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3596 });
3597 let Some((position, hover_popovers)) = hover_popovers else {
3598 return;
3599 };
3600
3601 // This is safe because we check on layout whether the required row is available
3602 let hovered_row_layout =
3603 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3604
3605 // Compute Hovered Point
3606 let x =
3607 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3608 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3609 let hovered_point = content_origin + point(x, y);
3610
3611 let mut overall_height = Pixels::ZERO;
3612 let mut measured_hover_popovers = Vec::new();
3613 for mut hover_popover in hover_popovers {
3614 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), cx);
3615 let horizontal_offset =
3616 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3617
3618 overall_height += HOVER_POPOVER_GAP + size.height;
3619
3620 measured_hover_popovers.push(MeasuredHoverPopover {
3621 element: hover_popover,
3622 size,
3623 horizontal_offset,
3624 });
3625 }
3626 overall_height += HOVER_POPOVER_GAP;
3627
3628 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
3629 let mut occlusion = div()
3630 .size_full()
3631 .occlude()
3632 .on_mouse_move(|_, cx| cx.stop_propagation())
3633 .into_any_element();
3634 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
3635 cx.defer_draw(occlusion, origin, 2);
3636 }
3637
3638 if hovered_point.y > overall_height {
3639 // There is enough space above. Render popovers above the hovered point
3640 let mut current_y = hovered_point.y;
3641 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3642 let size = popover.size;
3643 let popover_origin = point(
3644 hovered_point.x + popover.horizontal_offset,
3645 current_y - size.height,
3646 );
3647
3648 cx.defer_draw(popover.element, popover_origin, 2);
3649 if position != itertools::Position::Last {
3650 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3651 draw_occluder(size.width, origin, cx);
3652 }
3653
3654 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3655 }
3656 } else {
3657 // There is not enough space above. Render popovers below the hovered point
3658 let mut current_y = hovered_point.y + line_height;
3659 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3660 let size = popover.size;
3661 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3662
3663 cx.defer_draw(popover.element, popover_origin, 2);
3664 if position != itertools::Position::Last {
3665 let origin = point(popover_origin.x, popover_origin.y + size.height);
3666 draw_occluder(size.width, origin, cx);
3667 }
3668
3669 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3670 }
3671 }
3672 }
3673
3674 #[allow(clippy::too_many_arguments)]
3675 fn layout_signature_help(
3676 &self,
3677 hitbox: &Hitbox,
3678 content_origin: gpui::Point<Pixels>,
3679 scroll_pixel_position: gpui::Point<Pixels>,
3680 newest_selection_head: Option<DisplayPoint>,
3681 start_row: DisplayRow,
3682 line_layouts: &[LineWithInvisibles],
3683 line_height: Pixels,
3684 em_width: Pixels,
3685 cx: &mut WindowContext,
3686 ) {
3687 if !self.editor.focus_handle(cx).is_focused(cx) {
3688 return;
3689 }
3690 let Some(newest_selection_head) = newest_selection_head else {
3691 return;
3692 };
3693 let selection_row = newest_selection_head.row();
3694 if selection_row < start_row {
3695 return;
3696 }
3697 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
3698 else {
3699 return;
3700 };
3701
3702 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
3703 - scroll_pixel_position.x
3704 + content_origin.x;
3705 let start_y =
3706 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
3707
3708 let max_size = size(
3709 (120. * em_width) // Default size
3710 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3711 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3712 (16. * line_height) // Default size
3713 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3714 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3715 );
3716
3717 let maybe_element = self.editor.update(cx, |editor, cx| {
3718 if let Some(popover) = editor.signature_help_state.popover_mut() {
3719 let element = popover.render(
3720 &self.style,
3721 max_size,
3722 editor.workspace.as_ref().map(|(w, _)| w.clone()),
3723 cx,
3724 );
3725 Some(element)
3726 } else {
3727 None
3728 }
3729 });
3730 if let Some(mut element) = maybe_element {
3731 let window_size = cx.viewport_size();
3732 let size = element.layout_as_root(Size::<AvailableSpace>::default(), cx);
3733 let mut point = point(start_x, start_y - size.height);
3734
3735 // Adjusting to ensure the popover does not overflow in the X-axis direction.
3736 if point.x + size.width >= window_size.width {
3737 point.x = window_size.width - size.width;
3738 }
3739
3740 cx.defer_draw(element, point, 1)
3741 }
3742 }
3743
3744 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
3745 cx.paint_layer(layout.hitbox.bounds, |cx| {
3746 let scroll_top = layout.position_map.snapshot.scroll_position().y;
3747 let gutter_bg = cx.theme().colors().editor_gutter_background;
3748 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
3749 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
3750
3751 if let EditorMode::Full = layout.mode {
3752 let mut active_rows = layout.active_rows.iter().peekable();
3753 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
3754 let mut end_row = start_row.0;
3755 while active_rows
3756 .peek()
3757 .map_or(false, |(active_row, has_selection)| {
3758 active_row.0 == end_row + 1
3759 && *has_selection == contains_non_empty_selection
3760 })
3761 {
3762 active_rows.next().unwrap();
3763 end_row += 1;
3764 }
3765
3766 if !contains_non_empty_selection {
3767 let highlight_h_range =
3768 match layout.position_map.snapshot.current_line_highlight {
3769 CurrentLineHighlight::Gutter => Some(Range {
3770 start: layout.hitbox.left(),
3771 end: layout.gutter_hitbox.right(),
3772 }),
3773 CurrentLineHighlight::Line => Some(Range {
3774 start: layout.text_hitbox.bounds.left(),
3775 end: layout.text_hitbox.bounds.right(),
3776 }),
3777 CurrentLineHighlight::All => Some(Range {
3778 start: layout.hitbox.left(),
3779 end: layout.hitbox.right(),
3780 }),
3781 CurrentLineHighlight::None => None,
3782 };
3783 if let Some(range) = highlight_h_range {
3784 let active_line_bg = cx.theme().colors().editor_active_line_background;
3785 let bounds = Bounds {
3786 origin: point(
3787 range.start,
3788 layout.hitbox.origin.y
3789 + (start_row.as_f32() - scroll_top)
3790 * layout.position_map.line_height,
3791 ),
3792 size: size(
3793 range.end - range.start,
3794 layout.position_map.line_height
3795 * (end_row - start_row.0 + 1) as f32,
3796 ),
3797 };
3798 cx.paint_quad(fill(bounds, active_line_bg));
3799 }
3800 }
3801 }
3802
3803 let mut paint_highlight =
3804 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
3805 let origin = point(
3806 layout.hitbox.origin.x,
3807 layout.hitbox.origin.y
3808 + (highlight_row_start.as_f32() - scroll_top)
3809 * layout.position_map.line_height,
3810 );
3811 let size = size(
3812 layout.hitbox.size.width,
3813 layout.position_map.line_height
3814 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
3815 );
3816 cx.paint_quad(fill(Bounds { origin, size }, color));
3817 };
3818
3819 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
3820 for (&new_row, &new_color) in &layout.highlighted_rows {
3821 match &mut current_paint {
3822 Some((current_color, current_range)) => {
3823 let current_color = *current_color;
3824 let new_range_started = current_color != new_color
3825 || current_range.end.next_row() != new_row;
3826 if new_range_started {
3827 paint_highlight(
3828 current_range.start,
3829 current_range.end,
3830 current_color,
3831 );
3832 current_paint = Some((new_color, new_row..new_row));
3833 continue;
3834 } else {
3835 current_range.end = current_range.end.next_row();
3836 }
3837 }
3838 None => current_paint = Some((new_color, new_row..new_row)),
3839 };
3840 }
3841 if let Some((color, range)) = current_paint {
3842 paint_highlight(range.start, range.end, color);
3843 }
3844
3845 let scroll_left =
3846 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
3847
3848 for (wrap_position, active) in layout.wrap_guides.iter() {
3849 let x = (layout.text_hitbox.origin.x
3850 + *wrap_position
3851 + layout.position_map.em_width / 2.)
3852 - scroll_left;
3853
3854 let show_scrollbars = {
3855 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
3856
3857 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
3858 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
3859 };
3860
3861 if x < layout.text_hitbox.origin.x
3862 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
3863 {
3864 continue;
3865 }
3866
3867 let color = if *active {
3868 cx.theme().colors().editor_active_wrap_guide
3869 } else {
3870 cx.theme().colors().editor_wrap_guide
3871 };
3872 cx.paint_quad(fill(
3873 Bounds {
3874 origin: point(x, layout.text_hitbox.origin.y),
3875 size: size(px(1.), layout.text_hitbox.size.height),
3876 },
3877 color,
3878 ));
3879 }
3880 }
3881 })
3882 }
3883
3884 fn paint_indent_guides(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3885 let Some(indent_guides) = &layout.indent_guides else {
3886 return;
3887 };
3888
3889 let faded_color = |color: Hsla, alpha: f32| {
3890 let mut faded = color;
3891 faded.a = alpha;
3892 faded
3893 };
3894
3895 for indent_guide in indent_guides {
3896 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
3897 let settings = indent_guide.settings;
3898
3899 // TODO fixed for now, expose them through themes later
3900 const INDENT_AWARE_ALPHA: f32 = 0.2;
3901 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
3902 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
3903 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
3904
3905 let line_color = match (settings.coloring, indent_guide.active) {
3906 (IndentGuideColoring::Disabled, _) => None,
3907 (IndentGuideColoring::Fixed, false) => {
3908 Some(cx.theme().colors().editor_indent_guide)
3909 }
3910 (IndentGuideColoring::Fixed, true) => {
3911 Some(cx.theme().colors().editor_indent_guide_active)
3912 }
3913 (IndentGuideColoring::IndentAware, false) => {
3914 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
3915 }
3916 (IndentGuideColoring::IndentAware, true) => {
3917 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
3918 }
3919 };
3920
3921 let background_color = match (settings.background_coloring, indent_guide.active) {
3922 (IndentGuideBackgroundColoring::Disabled, _) => None,
3923 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
3924 indent_accent_colors,
3925 INDENT_AWARE_BACKGROUND_ALPHA,
3926 )),
3927 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
3928 indent_accent_colors,
3929 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
3930 )),
3931 };
3932
3933 let requested_line_width = if indent_guide.active {
3934 settings.active_line_width
3935 } else {
3936 settings.line_width
3937 }
3938 .clamp(1, 10);
3939 let mut line_indicator_width = 0.;
3940 if let Some(color) = line_color {
3941 cx.paint_quad(fill(
3942 Bounds {
3943 origin: indent_guide.origin,
3944 size: size(px(requested_line_width as f32), indent_guide.length),
3945 },
3946 color,
3947 ));
3948 line_indicator_width = requested_line_width as f32;
3949 }
3950
3951 if let Some(color) = background_color {
3952 let width = indent_guide.single_indent_width - px(line_indicator_width);
3953 cx.paint_quad(fill(
3954 Bounds {
3955 origin: point(
3956 indent_guide.origin.x + px(line_indicator_width),
3957 indent_guide.origin.y,
3958 ),
3959 size: size(width, indent_guide.length),
3960 },
3961 color,
3962 ));
3963 }
3964 }
3965 }
3966
3967 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3968 let is_singleton = self.editor.read(cx).is_singleton(cx);
3969
3970 let line_height = layout.position_map.line_height;
3971 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
3972
3973 for LineNumberLayout {
3974 shaped_line,
3975 hitbox,
3976 display_row,
3977 } in layout.line_numbers.values()
3978 {
3979 let Some(hitbox) = hitbox else {
3980 continue;
3981 };
3982
3983 let is_active = layout.active_rows.contains_key(&display_row);
3984
3985 let color = if is_active {
3986 cx.theme().colors().editor_active_line_number
3987 } else if !is_singleton && hitbox.is_hovered(cx) {
3988 cx.theme().colors().editor_hover_line_number
3989 } else {
3990 cx.theme().colors().editor_line_number
3991 };
3992
3993 let Some(line) = self
3994 .shape_line_number(shaped_line.text.clone(), color, cx)
3995 .log_err()
3996 else {
3997 continue;
3998 };
3999 let Some(()) = line.paint(hitbox.origin, line_height, cx).log_err() else {
4000 continue;
4001 };
4002 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4003 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4004 if is_singleton {
4005 cx.set_cursor_style(CursorStyle::IBeam, hitbox);
4006 } else {
4007 cx.set_cursor_style(CursorStyle::PointingHand, hitbox);
4008 }
4009 }
4010 }
4011
4012 fn paint_diff_hunks(layout: &mut EditorLayout, cx: &mut WindowContext) {
4013 if layout.display_hunks.is_empty() {
4014 return;
4015 }
4016
4017 let line_height = layout.position_map.line_height;
4018 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
4019 for (hunk, hitbox) in &layout.display_hunks {
4020 let hunk_to_paint = match hunk {
4021 DisplayDiffHunk::Folded { .. } => {
4022 let hunk_bounds = Self::diff_hunk_bounds(
4023 &layout.position_map.snapshot,
4024 line_height,
4025 layout.gutter_hitbox.bounds,
4026 hunk,
4027 );
4028 Some((
4029 hunk_bounds,
4030 cx.theme().status().modified,
4031 Corners::all(px(0.)),
4032 ))
4033 }
4034 DisplayDiffHunk::Unfolded { status, .. } => {
4035 hitbox.as_ref().map(|hunk_hitbox| match status {
4036 DiffHunkStatus::Added => (
4037 hunk_hitbox.bounds,
4038 cx.theme().status().created,
4039 Corners::all(px(0.)),
4040 ),
4041 DiffHunkStatus::Modified => (
4042 hunk_hitbox.bounds,
4043 cx.theme().status().modified,
4044 Corners::all(px(0.)),
4045 ),
4046 DiffHunkStatus::Removed => (
4047 Bounds::new(
4048 point(
4049 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4050 hunk_hitbox.origin.y,
4051 ),
4052 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4053 ),
4054 cx.theme().status().deleted,
4055 Corners::all(1. * line_height),
4056 ),
4057 })
4058 }
4059 };
4060
4061 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4062 cx.paint_quad(quad(
4063 hunk_bounds,
4064 corner_radii,
4065 background_color,
4066 Edges::default(),
4067 transparent_black(),
4068 ));
4069 }
4070 }
4071 });
4072 }
4073
4074 pub(super) fn diff_hunk_bounds(
4075 snapshot: &EditorSnapshot,
4076 line_height: Pixels,
4077 gutter_bounds: Bounds<Pixels>,
4078 hunk: &DisplayDiffHunk,
4079 ) -> Bounds<Pixels> {
4080 let scroll_position = snapshot.scroll_position();
4081 let scroll_top = scroll_position.y * line_height;
4082
4083 match hunk {
4084 DisplayDiffHunk::Folded { display_row, .. } => {
4085 let start_y = display_row.as_f32() * line_height - scroll_top;
4086 let end_y = start_y + line_height;
4087
4088 let width = Self::diff_hunk_strip_width(line_height);
4089 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4090 let highlight_size = size(width, end_y - start_y);
4091 Bounds::new(highlight_origin, highlight_size)
4092 }
4093 DisplayDiffHunk::Unfolded {
4094 display_row_range,
4095 status,
4096 ..
4097 } => match status {
4098 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
4099 let start_row = display_row_range.start;
4100 let end_row = display_row_range.end;
4101 // If we're in a multibuffer, row range span might include an
4102 // excerpt header, so if we were to draw the marker straight away,
4103 // the hunk might include the rows of that header.
4104 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4105 // Instead, we simply check whether the range we're dealing with includes
4106 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4107 let end_row_in_current_excerpt = snapshot
4108 .blocks_in_range(start_row..end_row)
4109 .find_map(|(start_row, block)| {
4110 if matches!(block, Block::ExcerptBoundary { .. }) {
4111 Some(start_row)
4112 } else {
4113 None
4114 }
4115 })
4116 .unwrap_or(end_row);
4117
4118 let start_y = start_row.as_f32() * line_height - scroll_top;
4119 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4120
4121 let width = Self::diff_hunk_strip_width(line_height);
4122 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4123 let highlight_size = size(width, end_y - start_y);
4124 Bounds::new(highlight_origin, highlight_size)
4125 }
4126 DiffHunkStatus::Removed => {
4127 let row = display_row_range.start;
4128
4129 let offset = line_height / 2.;
4130 let start_y = row.as_f32() * line_height - offset - scroll_top;
4131 let end_y = start_y + line_height;
4132
4133 let width = (0.35 * line_height).floor();
4134 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4135 let highlight_size = size(width, end_y - start_y);
4136 Bounds::new(highlight_origin, highlight_size)
4137 }
4138 },
4139 }
4140 }
4141
4142 /// Returns the width of the diff strip that will be displayed in the gutter.
4143 pub(super) fn diff_hunk_strip_width(line_height: Pixels) -> Pixels {
4144 // We floor the value to prevent pixel rounding.
4145 (0.275 * line_height).floor()
4146 }
4147
4148 fn paint_gutter_indicators(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4149 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
4150 cx.with_element_namespace("crease_toggles", |cx| {
4151 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4152 crease_toggle.paint(cx);
4153 }
4154 });
4155
4156 for test_indicator in layout.test_indicators.iter_mut() {
4157 test_indicator.paint(cx);
4158 }
4159
4160 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4161 indicator.paint(cx);
4162 }
4163 });
4164 }
4165
4166 fn paint_gutter_highlights(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4167 for (_, hunk_hitbox) in &layout.display_hunks {
4168 if let Some(hunk_hitbox) = hunk_hitbox {
4169 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4170 }
4171 }
4172
4173 let show_git_gutter = layout
4174 .position_map
4175 .snapshot
4176 .show_git_diff_gutter
4177 .unwrap_or_else(|| {
4178 matches!(
4179 ProjectSettings::get_global(cx).git.git_gutter,
4180 Some(GitGutterSetting::TrackedFiles)
4181 )
4182 });
4183 if show_git_gutter {
4184 Self::paint_diff_hunks(layout, cx)
4185 }
4186
4187 let highlight_width = 0.275 * layout.position_map.line_height;
4188 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4189 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
4190 for (range, color) in &layout.highlighted_gutter_ranges {
4191 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4192 layout.visible_display_row_range.start - DisplayRow(1)
4193 } else {
4194 range.start.row()
4195 };
4196 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4197 layout.visible_display_row_range.end + DisplayRow(1)
4198 } else {
4199 range.end.row()
4200 };
4201
4202 let start_y = layout.gutter_hitbox.top()
4203 + start_row.0 as f32 * layout.position_map.line_height
4204 - layout.position_map.scroll_pixel_position.y;
4205 let end_y = layout.gutter_hitbox.top()
4206 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4207 - layout.position_map.scroll_pixel_position.y;
4208 let bounds = Bounds::from_corners(
4209 point(layout.gutter_hitbox.left(), start_y),
4210 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4211 );
4212 cx.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4213 }
4214 });
4215 }
4216
4217 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4218 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4219 return;
4220 };
4221
4222 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
4223 for mut blame_element in blamed_display_rows.into_iter() {
4224 blame_element.paint(cx);
4225 }
4226 })
4227 }
4228
4229 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4230 cx.with_content_mask(
4231 Some(ContentMask {
4232 bounds: layout.text_hitbox.bounds,
4233 }),
4234 |cx| {
4235 let cursor_style = if self
4236 .editor
4237 .read(cx)
4238 .hovered_link_state
4239 .as_ref()
4240 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4241 {
4242 CursorStyle::PointingHand
4243 } else {
4244 CursorStyle::IBeam
4245 };
4246 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
4247
4248 let invisible_display_ranges = self.paint_highlights(layout, cx);
4249 self.paint_lines(&invisible_display_ranges, layout, cx);
4250 self.paint_redactions(layout, cx);
4251 self.paint_cursors(layout, cx);
4252 self.paint_inline_blame(layout, cx);
4253 cx.with_element_namespace("crease_trailers", |cx| {
4254 for trailer in layout.crease_trailers.iter_mut().flatten() {
4255 trailer.element.paint(cx);
4256 }
4257 });
4258 },
4259 )
4260 }
4261
4262 fn paint_highlights(
4263 &mut self,
4264 layout: &mut EditorLayout,
4265 cx: &mut WindowContext,
4266 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4267 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
4268 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4269 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4270 for (range, color) in &layout.highlighted_ranges {
4271 self.paint_highlighted_range(
4272 range.clone(),
4273 *color,
4274 Pixels::ZERO,
4275 line_end_overshoot,
4276 layout,
4277 cx,
4278 );
4279 }
4280
4281 let corner_radius = 0.15 * layout.position_map.line_height;
4282
4283 for (player_color, selections) in &layout.selections {
4284 for selection in selections.iter() {
4285 self.paint_highlighted_range(
4286 selection.range.clone(),
4287 player_color.selection,
4288 corner_radius,
4289 corner_radius * 2.,
4290 layout,
4291 cx,
4292 );
4293
4294 if selection.is_local && !selection.range.is_empty() {
4295 invisible_display_ranges.push(selection.range.clone());
4296 }
4297 }
4298 }
4299 invisible_display_ranges
4300 })
4301 }
4302
4303 fn paint_lines(
4304 &mut self,
4305 invisible_display_ranges: &[Range<DisplayPoint>],
4306 layout: &mut EditorLayout,
4307 cx: &mut WindowContext,
4308 ) {
4309 let whitespace_setting = self
4310 .editor
4311 .read(cx)
4312 .buffer
4313 .read(cx)
4314 .settings_at(0, cx)
4315 .show_whitespaces;
4316
4317 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4318 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4319 line_with_invisibles.draw(
4320 layout,
4321 row,
4322 layout.content_origin,
4323 whitespace_setting,
4324 invisible_display_ranges,
4325 cx,
4326 )
4327 }
4328
4329 for line_element in &mut layout.line_elements {
4330 line_element.paint(cx);
4331 }
4332 }
4333
4334 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
4335 if layout.redacted_ranges.is_empty() {
4336 return;
4337 }
4338
4339 let line_end_overshoot = layout.line_end_overshoot();
4340
4341 // A softer than perfect black
4342 let redaction_color = gpui::rgb(0x0e1111);
4343
4344 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
4345 for range in layout.redacted_ranges.iter() {
4346 self.paint_highlighted_range(
4347 range.clone(),
4348 redaction_color.into(),
4349 Pixels::ZERO,
4350 line_end_overshoot,
4351 layout,
4352 cx,
4353 );
4354 }
4355 });
4356 }
4357
4358 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4359 for cursor in &mut layout.visible_cursors {
4360 cursor.paint(layout.content_origin, cx);
4361 }
4362 }
4363
4364 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4365 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4366
4367 if let Some(scrollbar_layout) = scrollbar_x {
4368 let hitbox = scrollbar_layout.hitbox.clone();
4369 let text_unit_size = scrollbar_layout.text_unit_size;
4370 let visible_range = scrollbar_layout.visible_range.clone();
4371 let thumb_bounds = scrollbar_layout.thumb_bounds();
4372
4373 if scrollbar_layout.visible {
4374 cx.paint_layer(hitbox.bounds, |cx| {
4375 cx.paint_quad(quad(
4376 hitbox.bounds,
4377 Corners::default(),
4378 cx.theme().colors().scrollbar_track_background,
4379 Edges {
4380 top: Pixels::ZERO,
4381 right: Pixels::ZERO,
4382 bottom: Pixels::ZERO,
4383 left: Pixels::ZERO,
4384 },
4385 cx.theme().colors().scrollbar_track_border,
4386 ));
4387
4388 cx.paint_quad(quad(
4389 thumb_bounds,
4390 Corners::default(),
4391 cx.theme().colors().scrollbar_thumb_background,
4392 Edges {
4393 top: Pixels::ZERO,
4394 right: Pixels::ZERO,
4395 bottom: Pixels::ZERO,
4396 left: ScrollbarLayout::BORDER_WIDTH,
4397 },
4398 cx.theme().colors().scrollbar_thumb_border,
4399 ));
4400 })
4401 }
4402
4403 cx.set_cursor_style(CursorStyle::Arrow, &hitbox);
4404
4405 cx.on_mouse_event({
4406 let editor = self.editor.clone();
4407
4408 // there may be a way to avoid this clone
4409 let hitbox = hitbox.clone();
4410
4411 let mut mouse_position = cx.mouse_position();
4412 move |event: &MouseMoveEvent, phase, cx| {
4413 if phase == DispatchPhase::Capture {
4414 return;
4415 }
4416
4417 editor.update(cx, |editor, cx| {
4418 if event.pressed_button == Some(MouseButton::Left)
4419 && editor
4420 .scroll_manager
4421 .is_dragging_scrollbar(Axis::Horizontal)
4422 {
4423 let x = mouse_position.x;
4424 let new_x = event.position.x;
4425 if (hitbox.left()..hitbox.right()).contains(&x) {
4426 let mut position = editor.scroll_position(cx);
4427
4428 position.x += (new_x - x) / text_unit_size;
4429 if position.x < 0.0 {
4430 position.x = 0.0;
4431 }
4432 editor.set_scroll_position(position, cx);
4433 }
4434
4435 cx.stop_propagation();
4436 } else {
4437 editor.scroll_manager.set_is_dragging_scrollbar(
4438 Axis::Horizontal,
4439 false,
4440 cx,
4441 );
4442
4443 if hitbox.is_hovered(cx) {
4444 editor.scroll_manager.show_scrollbar(cx);
4445 }
4446 }
4447 mouse_position = event.position;
4448 })
4449 }
4450 });
4451
4452 if self
4453 .editor
4454 .read(cx)
4455 .scroll_manager
4456 .is_dragging_scrollbar(Axis::Horizontal)
4457 {
4458 cx.on_mouse_event({
4459 let editor = self.editor.clone();
4460 move |_: &MouseUpEvent, phase, cx| {
4461 if phase == DispatchPhase::Capture {
4462 return;
4463 }
4464
4465 editor.update(cx, |editor, cx| {
4466 editor.scroll_manager.set_is_dragging_scrollbar(
4467 Axis::Horizontal,
4468 false,
4469 cx,
4470 );
4471 cx.stop_propagation();
4472 });
4473 }
4474 });
4475 } else {
4476 cx.on_mouse_event({
4477 let editor = self.editor.clone();
4478
4479 move |event: &MouseDownEvent, phase, cx| {
4480 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
4481 return;
4482 }
4483
4484 editor.update(cx, |editor, cx| {
4485 editor.scroll_manager.set_is_dragging_scrollbar(
4486 Axis::Horizontal,
4487 true,
4488 cx,
4489 );
4490
4491 let x = event.position.x;
4492
4493 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4494 let center_row =
4495 ((x - hitbox.left()) / text_unit_size).round() as u32;
4496 let top_row = center_row.saturating_sub(
4497 (visible_range.end - visible_range.start) as u32 / 2,
4498 );
4499
4500 let mut position = editor.scroll_position(cx);
4501 position.x = top_row as f32;
4502
4503 editor.set_scroll_position(position, cx);
4504 } else {
4505 editor.scroll_manager.show_scrollbar(cx);
4506 }
4507
4508 cx.stop_propagation();
4509 });
4510 }
4511 });
4512 }
4513 }
4514
4515 if let Some(scrollbar_layout) = scrollbar_y {
4516 let hitbox = scrollbar_layout.hitbox.clone();
4517 let text_unit_size = scrollbar_layout.text_unit_size;
4518 let visible_range = scrollbar_layout.visible_range.clone();
4519 let thumb_bounds = scrollbar_layout.thumb_bounds();
4520
4521 if scrollbar_layout.visible {
4522 cx.paint_layer(hitbox.bounds, |cx| {
4523 cx.paint_quad(quad(
4524 hitbox.bounds,
4525 Corners::default(),
4526 cx.theme().colors().scrollbar_track_background,
4527 Edges {
4528 top: Pixels::ZERO,
4529 right: Pixels::ZERO,
4530 bottom: Pixels::ZERO,
4531 left: ScrollbarLayout::BORDER_WIDTH,
4532 },
4533 cx.theme().colors().scrollbar_track_border,
4534 ));
4535
4536 let fast_markers =
4537 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4538 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4539 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, cx);
4540
4541 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4542 for marker in markers.iter().chain(&fast_markers) {
4543 let mut marker = marker.clone();
4544 marker.bounds.origin += hitbox.origin;
4545 cx.paint_quad(marker);
4546 }
4547
4548 cx.paint_quad(quad(
4549 thumb_bounds,
4550 Corners::default(),
4551 cx.theme().colors().scrollbar_thumb_background,
4552 Edges {
4553 top: Pixels::ZERO,
4554 right: Pixels::ZERO,
4555 bottom: Pixels::ZERO,
4556 left: ScrollbarLayout::BORDER_WIDTH,
4557 },
4558 cx.theme().colors().scrollbar_thumb_border,
4559 ));
4560 });
4561 }
4562
4563 cx.set_cursor_style(CursorStyle::Arrow, &hitbox);
4564
4565 cx.on_mouse_event({
4566 let editor = self.editor.clone();
4567
4568 let hitbox = hitbox.clone();
4569
4570 let mut mouse_position = cx.mouse_position();
4571 move |event: &MouseMoveEvent, phase, cx| {
4572 if phase == DispatchPhase::Capture {
4573 return;
4574 }
4575
4576 editor.update(cx, |editor, cx| {
4577 if event.pressed_button == Some(MouseButton::Left)
4578 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4579 {
4580 let y = mouse_position.y;
4581 let new_y = event.position.y;
4582 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4583 let mut position = editor.scroll_position(cx);
4584 position.y += (new_y - y) / text_unit_size;
4585 if position.y < 0.0 {
4586 position.y = 0.0;
4587 }
4588 editor.set_scroll_position(position, cx);
4589 }
4590 } else {
4591 editor.scroll_manager.set_is_dragging_scrollbar(
4592 Axis::Vertical,
4593 false,
4594 cx,
4595 );
4596
4597 if hitbox.is_hovered(cx) {
4598 editor.scroll_manager.show_scrollbar(cx);
4599 }
4600 }
4601 mouse_position = event.position;
4602 })
4603 }
4604 });
4605
4606 if self
4607 .editor
4608 .read(cx)
4609 .scroll_manager
4610 .is_dragging_scrollbar(Axis::Vertical)
4611 {
4612 cx.on_mouse_event({
4613 let editor = self.editor.clone();
4614 move |_: &MouseUpEvent, phase, cx| {
4615 if phase == DispatchPhase::Capture {
4616 return;
4617 }
4618
4619 editor.update(cx, |editor, cx| {
4620 editor.scroll_manager.set_is_dragging_scrollbar(
4621 Axis::Vertical,
4622 false,
4623 cx,
4624 );
4625 cx.stop_propagation();
4626 });
4627 }
4628 });
4629 } else {
4630 cx.on_mouse_event({
4631 let editor = self.editor.clone();
4632
4633 move |event: &MouseDownEvent, phase, cx| {
4634 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
4635 return;
4636 }
4637
4638 editor.update(cx, |editor, cx| {
4639 editor.scroll_manager.set_is_dragging_scrollbar(
4640 Axis::Vertical,
4641 true,
4642 cx,
4643 );
4644
4645 let y = event.position.y;
4646 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
4647 let center_row =
4648 ((y - hitbox.top()) / text_unit_size).round() as u32;
4649 let top_row = center_row.saturating_sub(
4650 (visible_range.end - visible_range.start) as u32 / 2,
4651 );
4652 let mut position = editor.scroll_position(cx);
4653 position.y = top_row as f32;
4654 editor.set_scroll_position(position, cx);
4655 } else {
4656 editor.scroll_manager.show_scrollbar(cx);
4657 }
4658
4659 cx.stop_propagation();
4660 });
4661 }
4662 });
4663 }
4664 }
4665 }
4666
4667 fn collect_fast_scrollbar_markers(
4668 &self,
4669 layout: &EditorLayout,
4670 scrollbar_layout: &ScrollbarLayout,
4671 cx: &mut WindowContext,
4672 ) -> Vec<PaintQuad> {
4673 const LIMIT: usize = 100;
4674 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
4675 return vec![];
4676 }
4677 let cursor_ranges = layout
4678 .cursors
4679 .iter()
4680 .map(|(point, color)| ColoredRange {
4681 start: point.row(),
4682 end: point.row(),
4683 color: *color,
4684 })
4685 .collect_vec();
4686 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
4687 }
4688
4689 fn refresh_slow_scrollbar_markers(
4690 &self,
4691 layout: &EditorLayout,
4692 scrollbar_layout: &ScrollbarLayout,
4693 cx: &mut WindowContext,
4694 ) {
4695 self.editor.update(cx, |editor, cx| {
4696 if !editor.is_singleton(cx)
4697 || !editor
4698 .scrollbar_marker_state
4699 .should_refresh(scrollbar_layout.hitbox.size)
4700 {
4701 return;
4702 }
4703
4704 let scrollbar_layout = scrollbar_layout.clone();
4705 let background_highlights = editor.background_highlights.clone();
4706 let snapshot = layout.position_map.snapshot.clone();
4707 let theme = cx.theme().clone();
4708 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
4709
4710 editor.scrollbar_marker_state.dirty = false;
4711 editor.scrollbar_marker_state.pending_refresh =
4712 Some(cx.spawn(|editor, mut cx| async move {
4713 let scrollbar_size = scrollbar_layout.hitbox.size;
4714 let scrollbar_markers = cx
4715 .background_executor()
4716 .spawn(async move {
4717 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
4718 let mut marker_quads = Vec::new();
4719 if scrollbar_settings.git_diff {
4720 let marker_row_ranges = snapshot
4721 .diff_map
4722 .diff_hunks(&snapshot.buffer_snapshot)
4723 .map(|hunk| {
4724 let start_display_row =
4725 MultiBufferPoint::new(hunk.row_range.start.0, 0)
4726 .to_display_point(&snapshot.display_snapshot)
4727 .row();
4728 let mut end_display_row =
4729 MultiBufferPoint::new(hunk.row_range.end.0, 0)
4730 .to_display_point(&snapshot.display_snapshot)
4731 .row();
4732 if end_display_row != start_display_row {
4733 end_display_row.0 -= 1;
4734 }
4735 let color = match hunk_status(&hunk) {
4736 DiffHunkStatus::Added => theme.status().created,
4737 DiffHunkStatus::Modified => theme.status().modified,
4738 DiffHunkStatus::Removed => theme.status().deleted,
4739 };
4740 ColoredRange {
4741 start: start_display_row,
4742 end: end_display_row,
4743 color,
4744 }
4745 });
4746
4747 marker_quads.extend(
4748 scrollbar_layout
4749 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
4750 );
4751 }
4752
4753 for (background_highlight_id, (_, background_ranges)) in
4754 background_highlights.iter()
4755 {
4756 let is_search_highlights = *background_highlight_id
4757 == TypeId::of::<BufferSearchHighlights>();
4758 let is_symbol_occurrences = *background_highlight_id
4759 == TypeId::of::<DocumentHighlightRead>()
4760 || *background_highlight_id
4761 == TypeId::of::<DocumentHighlightWrite>();
4762 if (is_search_highlights && scrollbar_settings.search_results)
4763 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
4764 {
4765 let mut color = theme.status().info;
4766 if is_symbol_occurrences {
4767 color.fade_out(0.5);
4768 }
4769 let marker_row_ranges = background_ranges.iter().map(|range| {
4770 let display_start = range
4771 .start
4772 .to_display_point(&snapshot.display_snapshot);
4773 let display_end =
4774 range.end.to_display_point(&snapshot.display_snapshot);
4775 ColoredRange {
4776 start: display_start.row(),
4777 end: display_end.row(),
4778 color,
4779 }
4780 });
4781 marker_quads.extend(
4782 scrollbar_layout
4783 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
4784 );
4785 }
4786 }
4787
4788 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
4789 let diagnostics = snapshot
4790 .buffer_snapshot
4791 .diagnostics_in_range(Point::zero()..max_point, false)
4792 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
4793 diagnostic,
4794 range: range.to_point(&snapshot.buffer_snapshot),
4795 })
4796 // Don't show diagnostics the user doesn't care about
4797 .filter(|diagnostic| {
4798 match (
4799 scrollbar_settings.diagnostics,
4800 diagnostic.diagnostic.severity,
4801 ) {
4802 (ScrollbarDiagnostics::All, _) => true,
4803 (
4804 ScrollbarDiagnostics::Error,
4805 DiagnosticSeverity::ERROR,
4806 ) => true,
4807 (
4808 ScrollbarDiagnostics::Warning,
4809 DiagnosticSeverity::ERROR
4810 | DiagnosticSeverity::WARNING,
4811 ) => true,
4812 (
4813 ScrollbarDiagnostics::Information,
4814 DiagnosticSeverity::ERROR
4815 | DiagnosticSeverity::WARNING
4816 | DiagnosticSeverity::INFORMATION,
4817 ) => true,
4818 (_, _) => false,
4819 }
4820 })
4821 // We want to sort by severity, in order to paint the most severe diagnostics last.
4822 .sorted_by_key(|diagnostic| {
4823 std::cmp::Reverse(diagnostic.diagnostic.severity)
4824 });
4825
4826 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
4827 let start_display = diagnostic
4828 .range
4829 .start
4830 .to_display_point(&snapshot.display_snapshot);
4831 let end_display = diagnostic
4832 .range
4833 .end
4834 .to_display_point(&snapshot.display_snapshot);
4835 let color = match diagnostic.diagnostic.severity {
4836 DiagnosticSeverity::ERROR => theme.status().error,
4837 DiagnosticSeverity::WARNING => theme.status().warning,
4838 DiagnosticSeverity::INFORMATION => theme.status().info,
4839 _ => theme.status().hint,
4840 };
4841 ColoredRange {
4842 start: start_display.row(),
4843 end: end_display.row(),
4844 color,
4845 }
4846 });
4847 marker_quads.extend(
4848 scrollbar_layout
4849 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
4850 );
4851 }
4852
4853 Arc::from(marker_quads)
4854 })
4855 .await;
4856
4857 editor.update(&mut cx, |editor, cx| {
4858 editor.scrollbar_marker_state.markers = scrollbar_markers;
4859 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
4860 editor.scrollbar_marker_state.pending_refresh = None;
4861 cx.notify();
4862 })?;
4863
4864 Ok(())
4865 }));
4866 });
4867 }
4868
4869 #[allow(clippy::too_many_arguments)]
4870 fn paint_highlighted_range(
4871 &self,
4872 range: Range<DisplayPoint>,
4873 color: Hsla,
4874 corner_radius: Pixels,
4875 line_end_overshoot: Pixels,
4876 layout: &EditorLayout,
4877 cx: &mut WindowContext,
4878 ) {
4879 let start_row = layout.visible_display_row_range.start;
4880 let end_row = layout.visible_display_row_range.end;
4881 if range.start != range.end {
4882 let row_range = if range.end.column() == 0 {
4883 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
4884 } else {
4885 cmp::max(range.start.row(), start_row)
4886 ..cmp::min(range.end.row().next_row(), end_row)
4887 };
4888
4889 let highlighted_range = HighlightedRange {
4890 color,
4891 line_height: layout.position_map.line_height,
4892 corner_radius,
4893 start_y: layout.content_origin.y
4894 + row_range.start.as_f32() * layout.position_map.line_height
4895 - layout.position_map.scroll_pixel_position.y,
4896 lines: row_range
4897 .iter_rows()
4898 .map(|row| {
4899 let line_layout =
4900 &layout.position_map.line_layouts[row.minus(start_row) as usize];
4901 HighlightedRangeLine {
4902 start_x: if row == range.start.row() {
4903 layout.content_origin.x
4904 + line_layout.x_for_index(range.start.column() as usize)
4905 - layout.position_map.scroll_pixel_position.x
4906 } else {
4907 layout.content_origin.x
4908 - layout.position_map.scroll_pixel_position.x
4909 },
4910 end_x: if row == range.end.row() {
4911 layout.content_origin.x
4912 + line_layout.x_for_index(range.end.column() as usize)
4913 - layout.position_map.scroll_pixel_position.x
4914 } else {
4915 layout.content_origin.x + line_layout.width + line_end_overshoot
4916 - layout.position_map.scroll_pixel_position.x
4917 },
4918 }
4919 })
4920 .collect(),
4921 };
4922
4923 highlighted_range.paint(layout.text_hitbox.bounds, cx);
4924 }
4925 }
4926
4927 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4928 if let Some(mut inline_blame) = layout.inline_blame.take() {
4929 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
4930 inline_blame.paint(cx);
4931 })
4932 }
4933 }
4934
4935 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4936 for mut block in layout.blocks.drain(..) {
4937 block.element.paint(cx);
4938 }
4939 }
4940
4941 fn paint_inline_completion_popover(
4942 &mut self,
4943 layout: &mut EditorLayout,
4944 cx: &mut WindowContext,
4945 ) {
4946 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
4947 inline_completion_popover.paint(cx);
4948 }
4949 }
4950
4951 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4952 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
4953 mouse_context_menu.paint(cx);
4954 }
4955 }
4956
4957 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
4958 cx.on_mouse_event({
4959 let position_map = layout.position_map.clone();
4960 let editor = self.editor.clone();
4961 let hitbox = layout.hitbox.clone();
4962 let mut delta = ScrollDelta::default();
4963
4964 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
4965 // accidentally turn off their scrolling.
4966 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
4967
4968 move |event: &ScrollWheelEvent, phase, cx| {
4969 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
4970 delta = delta.coalesce(event.delta);
4971 editor.update(cx, |editor, cx| {
4972 let position_map: &PositionMap = &position_map;
4973
4974 let line_height = position_map.line_height;
4975 let max_glyph_width = position_map.em_width;
4976 let (delta, axis) = match delta {
4977 gpui::ScrollDelta::Pixels(mut pixels) => {
4978 //Trackpad
4979 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
4980 (pixels, axis)
4981 }
4982
4983 gpui::ScrollDelta::Lines(lines) => {
4984 //Not trackpad
4985 let pixels =
4986 point(lines.x * max_glyph_width, lines.y * line_height);
4987 (pixels, None)
4988 }
4989 };
4990
4991 let current_scroll_position = position_map.snapshot.scroll_position();
4992 let x = (current_scroll_position.x * max_glyph_width
4993 - (delta.x * scroll_sensitivity))
4994 / max_glyph_width;
4995 let y = (current_scroll_position.y * line_height
4996 - (delta.y * scroll_sensitivity))
4997 / line_height;
4998 let mut scroll_position =
4999 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5000 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5001 if forbid_vertical_scroll {
5002 scroll_position.y = current_scroll_position.y;
5003 }
5004
5005 if scroll_position != current_scroll_position {
5006 editor.scroll(scroll_position, axis, cx);
5007 cx.stop_propagation();
5008 } else if y < 0. {
5009 // Due to clamping, we may fail to detect cases of overscroll to the top;
5010 // We want the scroll manager to get an update in such cases and detect the change of direction
5011 // on the next frame.
5012 cx.notify();
5013 }
5014 });
5015 }
5016 }
5017 });
5018 }
5019
5020 fn paint_mouse_listeners(
5021 &mut self,
5022 layout: &EditorLayout,
5023 hovered_hunk: Option<HoveredHunk>,
5024 cx: &mut WindowContext,
5025 ) {
5026 self.paint_scroll_wheel_listener(layout, cx);
5027
5028 cx.on_mouse_event({
5029 let position_map = layout.position_map.clone();
5030 let editor = self.editor.clone();
5031 let text_hitbox = layout.text_hitbox.clone();
5032 let gutter_hitbox = layout.gutter_hitbox.clone();
5033 let line_numbers = layout.line_numbers.clone();
5034
5035 move |event: &MouseDownEvent, phase, cx| {
5036 if phase == DispatchPhase::Bubble {
5037 match event.button {
5038 MouseButton::Left => editor.update(cx, |editor, cx| {
5039 Self::mouse_left_down(
5040 editor,
5041 event,
5042 hovered_hunk.clone(),
5043 &position_map,
5044 &text_hitbox,
5045 &gutter_hitbox,
5046 line_numbers.as_ref(),
5047 cx,
5048 );
5049 }),
5050 MouseButton::Right => editor.update(cx, |editor, cx| {
5051 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
5052 }),
5053 MouseButton::Middle => editor.update(cx, |editor, cx| {
5054 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
5055 }),
5056 _ => {}
5057 };
5058 }
5059 }
5060 });
5061
5062 cx.on_mouse_event({
5063 let editor = self.editor.clone();
5064 let position_map = layout.position_map.clone();
5065 let text_hitbox = layout.text_hitbox.clone();
5066
5067 move |event: &MouseUpEvent, phase, cx| {
5068 if phase == DispatchPhase::Bubble {
5069 editor.update(cx, |editor, cx| {
5070 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
5071 });
5072 }
5073 }
5074 });
5075 cx.on_mouse_event({
5076 let position_map = layout.position_map.clone();
5077 let editor = self.editor.clone();
5078 let text_hitbox = layout.text_hitbox.clone();
5079 let gutter_hitbox = layout.gutter_hitbox.clone();
5080
5081 move |event: &MouseMoveEvent, phase, cx| {
5082 if phase == DispatchPhase::Bubble {
5083 editor.update(cx, |editor, cx| {
5084 if editor.hover_state.focused(cx) {
5085 return;
5086 }
5087 if event.pressed_button == Some(MouseButton::Left)
5088 || event.pressed_button == Some(MouseButton::Middle)
5089 {
5090 Self::mouse_dragged(
5091 editor,
5092 event,
5093 &position_map,
5094 text_hitbox.bounds,
5095 cx,
5096 )
5097 }
5098
5099 Self::mouse_moved(
5100 editor,
5101 event,
5102 &position_map,
5103 &text_hitbox,
5104 &gutter_hitbox,
5105 cx,
5106 )
5107 });
5108 }
5109 }
5110 });
5111 }
5112
5113 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5114 bounds.top_right().x - self.style.scrollbar_width
5115 }
5116
5117 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
5118 let style = &self.style;
5119 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5120 let layout = cx
5121 .text_system()
5122 .shape_line(
5123 SharedString::from(" ".repeat(column)),
5124 font_size,
5125 &[TextRun {
5126 len: column,
5127 font: style.text.font(),
5128 color: Hsla::default(),
5129 background_color: None,
5130 underline: None,
5131 strikethrough: None,
5132 }],
5133 )
5134 .unwrap();
5135
5136 layout.width
5137 }
5138
5139 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
5140 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5141 self.column_pixels(digit_count, cx)
5142 }
5143
5144 fn shape_line_number(
5145 &self,
5146 text: SharedString,
5147 color: Hsla,
5148 cx: &WindowContext,
5149 ) -> anyhow::Result<ShapedLine> {
5150 let run = TextRun {
5151 len: text.len(),
5152 font: self.style.text.font(),
5153 color,
5154 background_color: None,
5155 underline: None,
5156 strikethrough: None,
5157 };
5158 cx.text_system().shape_line(
5159 text,
5160 self.style.text.font_size.to_pixels(cx.rem_size()),
5161 &[run],
5162 )
5163 }
5164}
5165
5166fn header_jump_data(
5167 snapshot: &EditorSnapshot,
5168 block_row_start: DisplayRow,
5169 height: u32,
5170 for_excerpt: &ExcerptInfo,
5171) -> JumpData {
5172 let range = &for_excerpt.range;
5173 let buffer = &for_excerpt.buffer;
5174 let jump_anchor = range
5175 .primary
5176 .as_ref()
5177 .map_or(range.context.start, |primary| primary.start);
5178
5179 let excerpt_start = range.context.start;
5180 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5181 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
5182 0
5183 } else {
5184 let excerpt_start_row = language::ToPoint::to_point(&excerpt_start, buffer).row;
5185 jump_position.row - excerpt_start_row
5186 };
5187
5188 let line_offset_from_top = (block_row_start.0 + height + offset_from_excerpt_start)
5189 .saturating_sub(
5190 snapshot
5191 .scroll_anchor
5192 .scroll_position(&snapshot.display_snapshot)
5193 .y as u32,
5194 );
5195
5196 JumpData::MultiBufferPoint {
5197 excerpt_id: for_excerpt.id,
5198 anchor: jump_anchor,
5199 position: language::ToPoint::to_point(&jump_anchor, buffer),
5200 line_offset_from_top,
5201 }
5202}
5203
5204/// Returns true if there's a single edit, that's either a single character
5205/// insertion or a single line deletion.
5206fn hard_to_spot_single_edit(
5207 edits: &[(Range<Anchor>, String)],
5208 snapshot: &MultiBufferSnapshot,
5209) -> bool {
5210 if let [(range, new_text)] = edits {
5211 match new_text.len() {
5212 0 => {
5213 let range = range.to_point(&snapshot);
5214 range.start.row == range.end.row
5215 }
5216 1 => true,
5217 _ => false,
5218 }
5219 } else {
5220 false
5221 }
5222}
5223
5224fn all_edits_insertions_or_deletions(
5225 edits: &Vec<(Range<Anchor>, String)>,
5226 snapshot: &MultiBufferSnapshot,
5227) -> bool {
5228 let mut all_insertions = true;
5229 let mut all_deletions = true;
5230
5231 for (range, new_text) in edits.iter() {
5232 let range_is_empty = range.to_offset(&snapshot).is_empty();
5233 let text_is_empty = new_text.is_empty();
5234
5235 if range_is_empty != text_is_empty {
5236 if range_is_empty {
5237 all_deletions = false;
5238 } else {
5239 all_insertions = false;
5240 }
5241 } else {
5242 return false;
5243 }
5244
5245 if !all_insertions && !all_deletions {
5246 return false;
5247 }
5248 }
5249 all_insertions || all_deletions
5250}
5251
5252#[allow(clippy::too_many_arguments)]
5253fn prepaint_gutter_button(
5254 button: IconButton,
5255 row: DisplayRow,
5256 line_height: Pixels,
5257 gutter_dimensions: &GutterDimensions,
5258 scroll_pixel_position: gpui::Point<Pixels>,
5259 gutter_hitbox: &Hitbox,
5260 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5261 cx: &mut WindowContext,
5262) -> AnyElement {
5263 let mut button = button.into_any_element();
5264 let available_space = size(
5265 AvailableSpace::MinContent,
5266 AvailableSpace::Definite(line_height),
5267 );
5268 let indicator_size = button.layout_as_root(available_space, cx);
5269
5270 let blame_width = gutter_dimensions.git_blame_entries_width;
5271 let gutter_width = rows_with_hunk_bounds
5272 .get(&row)
5273 .map(|bounds| bounds.size.width);
5274 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5275
5276 let mut x = left_offset;
5277 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5278 - indicator_size.width
5279 - left_offset;
5280 x += available_width / 2.;
5281
5282 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5283 y += (line_height - indicator_size.height) / 2.;
5284
5285 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
5286 button
5287}
5288
5289fn render_inline_blame_entry(
5290 blame: &gpui::Model<GitBlame>,
5291 blame_entry: BlameEntry,
5292 style: &EditorStyle,
5293 workspace: Option<WeakView<Workspace>>,
5294 cx: &mut WindowContext,
5295) -> AnyElement {
5296 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5297
5298 let author = blame_entry.author.as_deref().unwrap_or_default();
5299 let summary_enabled = ProjectSettings::get_global(cx)
5300 .git
5301 .show_inline_commit_summary();
5302
5303 let text = match blame_entry.summary.as_ref() {
5304 Some(summary) if summary_enabled => {
5305 format!("{}, {} - {}", author, relative_timestamp, summary)
5306 }
5307 _ => format!("{}, {}", author, relative_timestamp),
5308 };
5309
5310 let details = blame.read(cx).details_for_entry(&blame_entry);
5311
5312 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5313
5314 h_flex()
5315 .id("inline-blame")
5316 .w_full()
5317 .font_family(style.text.font().family)
5318 .text_color(cx.theme().status().hint)
5319 .line_height(style.text.line_height)
5320 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5321 .child(text)
5322 .gap_2()
5323 .hoverable_tooltip(move |_| tooltip.clone().into())
5324 .into_any()
5325}
5326
5327fn render_blame_entry(
5328 ix: usize,
5329 blame: &gpui::Model<GitBlame>,
5330 blame_entry: BlameEntry,
5331 style: &EditorStyle,
5332 last_used_color: &mut Option<(PlayerColor, Oid)>,
5333 editor: View<Editor>,
5334 cx: &mut WindowContext,
5335) -> AnyElement {
5336 let mut sha_color = cx
5337 .theme()
5338 .players()
5339 .color_for_participant(blame_entry.sha.into());
5340 // If the last color we used is the same as the one we get for this line, but
5341 // the commit SHAs are different, then we try again to get a different color.
5342 match *last_used_color {
5343 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5344 let index: u32 = blame_entry.sha.into();
5345 sha_color = cx.theme().players().color_for_participant(index + 1);
5346 }
5347 _ => {}
5348 };
5349 last_used_color.replace((sha_color, blame_entry.sha));
5350
5351 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5352
5353 let short_commit_id = blame_entry.sha.display_short();
5354
5355 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5356 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5357
5358 let details = blame.read(cx).details_for_entry(&blame_entry);
5359
5360 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5361
5362 let tooltip = cx.new_view(|_| {
5363 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
5364 });
5365
5366 h_flex()
5367 .w_full()
5368 .justify_between()
5369 .font_family(style.text.font().family)
5370 .line_height(style.text.line_height)
5371 .id(("blame", ix))
5372 .text_color(cx.theme().status().hint)
5373 .pr_2()
5374 .gap_2()
5375 .child(
5376 h_flex()
5377 .items_center()
5378 .gap_2()
5379 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5380 .child(name),
5381 )
5382 .child(relative_timestamp)
5383 .on_mouse_down(MouseButton::Right, {
5384 let blame_entry = blame_entry.clone();
5385 let details = details.clone();
5386 move |event, cx| {
5387 deploy_blame_entry_context_menu(
5388 &blame_entry,
5389 details.as_ref(),
5390 editor.clone(),
5391 event.position,
5392 cx,
5393 );
5394 }
5395 })
5396 .hover(|style| style.bg(cx.theme().colors().element_hover))
5397 .when_some(
5398 details.and_then(|details| details.permalink),
5399 |this, url| {
5400 let url = url.clone();
5401 this.cursor_pointer().on_click(move |_, cx| {
5402 cx.stop_propagation();
5403 cx.open_url(url.as_str())
5404 })
5405 },
5406 )
5407 .hoverable_tooltip(move |_| tooltip.clone().into())
5408 .into_any()
5409}
5410
5411fn deploy_blame_entry_context_menu(
5412 blame_entry: &BlameEntry,
5413 details: Option<&CommitDetails>,
5414 editor: View<Editor>,
5415 position: gpui::Point<Pixels>,
5416 cx: &mut WindowContext,
5417) {
5418 let context_menu = ContextMenu::build(cx, move |menu, _| {
5419 let sha = format!("{}", blame_entry.sha);
5420 menu.on_blur_subscription(Subscription::new(|| {}))
5421 .entry("Copy commit SHA", None, move |cx| {
5422 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5423 })
5424 .when_some(
5425 details.and_then(|details| details.permalink.clone()),
5426 |this, url| this.entry("Open permalink", None, move |cx| cx.open_url(url.as_str())),
5427 )
5428 });
5429
5430 editor.update(cx, move |editor, cx| {
5431 editor.mouse_context_menu = Some(MouseContextMenu::new(
5432 MenuPosition::PinnedToScreen(position),
5433 context_menu,
5434 cx,
5435 ));
5436 cx.notify();
5437 });
5438}
5439
5440#[derive(Debug)]
5441pub(crate) struct LineWithInvisibles {
5442 fragments: SmallVec<[LineFragment; 1]>,
5443 invisibles: Vec<Invisible>,
5444 len: usize,
5445 width: Pixels,
5446 font_size: Pixels,
5447}
5448
5449#[allow(clippy::large_enum_variant)]
5450enum LineFragment {
5451 Text(ShapedLine),
5452 Element {
5453 element: Option<AnyElement>,
5454 size: Size<Pixels>,
5455 len: usize,
5456 },
5457}
5458
5459impl fmt::Debug for LineFragment {
5460 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5461 match self {
5462 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5463 LineFragment::Element { size, len, .. } => f
5464 .debug_struct("Element")
5465 .field("size", size)
5466 .field("len", len)
5467 .finish(),
5468 }
5469 }
5470}
5471
5472impl LineWithInvisibles {
5473 #[allow(clippy::too_many_arguments)]
5474 fn from_chunks<'a>(
5475 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5476 editor_style: &EditorStyle,
5477 max_line_len: usize,
5478 max_line_count: usize,
5479 editor_mode: EditorMode,
5480 text_width: Pixels,
5481 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5482 cx: &mut WindowContext,
5483 ) -> Vec<Self> {
5484 let text_style = &editor_style.text;
5485 let mut layouts = Vec::with_capacity(max_line_count);
5486 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5487 let mut line = String::new();
5488 let mut invisibles = Vec::new();
5489 let mut width = Pixels::ZERO;
5490 let mut len = 0;
5491 let mut styles = Vec::new();
5492 let mut non_whitespace_added = false;
5493 let mut row = 0;
5494 let mut line_exceeded_max_len = false;
5495 let font_size = text_style.font_size.to_pixels(cx.rem_size());
5496
5497 let ellipsis = SharedString::from("⋯");
5498
5499 for highlighted_chunk in chunks.chain([HighlightedChunk {
5500 text: "\n",
5501 style: None,
5502 is_tab: false,
5503 replacement: None,
5504 }]) {
5505 if let Some(replacement) = highlighted_chunk.replacement {
5506 if !line.is_empty() {
5507 let shaped_line = cx
5508 .text_system()
5509 .shape_line(line.clone().into(), font_size, &styles)
5510 .unwrap();
5511 width += shaped_line.width;
5512 len += shaped_line.len;
5513 fragments.push(LineFragment::Text(shaped_line));
5514 line.clear();
5515 styles.clear();
5516 }
5517
5518 match replacement {
5519 ChunkReplacement::Renderer(renderer) => {
5520 let available_width = if renderer.constrain_width {
5521 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5522 ellipsis.clone()
5523 } else {
5524 SharedString::from(Arc::from(highlighted_chunk.text))
5525 };
5526 let shaped_line = cx
5527 .text_system()
5528 .shape_line(
5529 chunk,
5530 font_size,
5531 &[text_style.to_run(highlighted_chunk.text.len())],
5532 )
5533 .unwrap();
5534 AvailableSpace::Definite(shaped_line.width)
5535 } else {
5536 AvailableSpace::MinContent
5537 };
5538
5539 let mut element = (renderer.render)(&mut ChunkRendererContext {
5540 context: cx,
5541 max_width: text_width,
5542 });
5543 let line_height = text_style.line_height_in_pixels(cx.rem_size());
5544 let size = element.layout_as_root(
5545 size(available_width, AvailableSpace::Definite(line_height)),
5546 cx,
5547 );
5548
5549 width += size.width;
5550 len += highlighted_chunk.text.len();
5551 fragments.push(LineFragment::Element {
5552 element: Some(element),
5553 size,
5554 len: highlighted_chunk.text.len(),
5555 });
5556 }
5557 ChunkReplacement::Str(x) => {
5558 let text_style = if let Some(style) = highlighted_chunk.style {
5559 Cow::Owned(text_style.clone().highlight(style))
5560 } else {
5561 Cow::Borrowed(text_style)
5562 };
5563
5564 let run = TextRun {
5565 len: x.len(),
5566 font: text_style.font(),
5567 color: text_style.color,
5568 background_color: text_style.background_color,
5569 underline: text_style.underline,
5570 strikethrough: text_style.strikethrough,
5571 };
5572 let line_layout = cx
5573 .text_system()
5574 .shape_line(x, font_size, &[run])
5575 .unwrap()
5576 .with_len(highlighted_chunk.text.len());
5577
5578 width += line_layout.width;
5579 len += highlighted_chunk.text.len();
5580 fragments.push(LineFragment::Text(line_layout))
5581 }
5582 }
5583 } else {
5584 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
5585 if ix > 0 {
5586 let shaped_line = cx
5587 .text_system()
5588 .shape_line(line.clone().into(), font_size, &styles)
5589 .unwrap();
5590 width += shaped_line.width;
5591 len += shaped_line.len;
5592 fragments.push(LineFragment::Text(shaped_line));
5593 layouts.push(Self {
5594 width: mem::take(&mut width),
5595 len: mem::take(&mut len),
5596 fragments: mem::take(&mut fragments),
5597 invisibles: std::mem::take(&mut invisibles),
5598 font_size,
5599 });
5600
5601 line.clear();
5602 styles.clear();
5603 row += 1;
5604 line_exceeded_max_len = false;
5605 non_whitespace_added = false;
5606 if row == max_line_count {
5607 return layouts;
5608 }
5609 }
5610
5611 if !line_chunk.is_empty() && !line_exceeded_max_len {
5612 let text_style = if let Some(style) = highlighted_chunk.style {
5613 Cow::Owned(text_style.clone().highlight(style))
5614 } else {
5615 Cow::Borrowed(text_style)
5616 };
5617
5618 if line.len() + line_chunk.len() > max_line_len {
5619 let mut chunk_len = max_line_len - line.len();
5620 while !line_chunk.is_char_boundary(chunk_len) {
5621 chunk_len -= 1;
5622 }
5623 line_chunk = &line_chunk[..chunk_len];
5624 line_exceeded_max_len = true;
5625 }
5626
5627 styles.push(TextRun {
5628 len: line_chunk.len(),
5629 font: text_style.font(),
5630 color: text_style.color,
5631 background_color: text_style.background_color,
5632 underline: text_style.underline,
5633 strikethrough: text_style.strikethrough,
5634 });
5635
5636 if editor_mode == EditorMode::Full {
5637 // Line wrap pads its contents with fake whitespaces,
5638 // avoid printing them
5639 let is_soft_wrapped = is_row_soft_wrapped(row);
5640 if highlighted_chunk.is_tab {
5641 if non_whitespace_added || !is_soft_wrapped {
5642 invisibles.push(Invisible::Tab {
5643 line_start_offset: line.len(),
5644 line_end_offset: line.len() + line_chunk.len(),
5645 });
5646 }
5647 } else {
5648 invisibles.extend(line_chunk.char_indices().filter_map(
5649 |(index, c)| {
5650 let is_whitespace = c.is_whitespace();
5651 non_whitespace_added |= !is_whitespace;
5652 if is_whitespace
5653 && (non_whitespace_added || !is_soft_wrapped)
5654 {
5655 Some(Invisible::Whitespace {
5656 line_offset: line.len() + index,
5657 })
5658 } else {
5659 None
5660 }
5661 },
5662 ))
5663 }
5664 }
5665
5666 line.push_str(line_chunk);
5667 }
5668 }
5669 }
5670 }
5671
5672 layouts
5673 }
5674
5675 fn prepaint(
5676 &mut self,
5677 line_height: Pixels,
5678 scroll_pixel_position: gpui::Point<Pixels>,
5679 row: DisplayRow,
5680 content_origin: gpui::Point<Pixels>,
5681 line_elements: &mut SmallVec<[AnyElement; 1]>,
5682 cx: &mut WindowContext,
5683 ) {
5684 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
5685 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
5686 for fragment in &mut self.fragments {
5687 match fragment {
5688 LineFragment::Text(line) => {
5689 fragment_origin.x += line.width;
5690 }
5691 LineFragment::Element { element, size, .. } => {
5692 let mut element = element
5693 .take()
5694 .expect("you can't prepaint LineWithInvisibles twice");
5695
5696 // Center the element vertically within the line.
5697 let mut element_origin = fragment_origin;
5698 element_origin.y += (line_height - size.height) / 2.;
5699 element.prepaint_at(element_origin, cx);
5700 line_elements.push(element);
5701
5702 fragment_origin.x += size.width;
5703 }
5704 }
5705 }
5706 }
5707
5708 fn draw(
5709 &self,
5710 layout: &EditorLayout,
5711 row: DisplayRow,
5712 content_origin: gpui::Point<Pixels>,
5713 whitespace_setting: ShowWhitespaceSetting,
5714 selection_ranges: &[Range<DisplayPoint>],
5715 cx: &mut WindowContext,
5716 ) {
5717 let line_height = layout.position_map.line_height;
5718 let line_y = line_height
5719 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
5720
5721 let mut fragment_origin =
5722 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
5723
5724 for fragment in &self.fragments {
5725 match fragment {
5726 LineFragment::Text(line) => {
5727 line.paint(fragment_origin, line_height, cx).log_err();
5728 fragment_origin.x += line.width;
5729 }
5730 LineFragment::Element { size, .. } => {
5731 fragment_origin.x += size.width;
5732 }
5733 }
5734 }
5735
5736 self.draw_invisibles(
5737 selection_ranges,
5738 layout,
5739 content_origin,
5740 line_y,
5741 row,
5742 line_height,
5743 whitespace_setting,
5744 cx,
5745 );
5746 }
5747
5748 #[allow(clippy::too_many_arguments)]
5749 fn draw_invisibles(
5750 &self,
5751 selection_ranges: &[Range<DisplayPoint>],
5752 layout: &EditorLayout,
5753 content_origin: gpui::Point<Pixels>,
5754 line_y: Pixels,
5755 row: DisplayRow,
5756 line_height: Pixels,
5757 whitespace_setting: ShowWhitespaceSetting,
5758 cx: &mut WindowContext,
5759 ) {
5760 let extract_whitespace_info = |invisible: &Invisible| {
5761 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
5762 Invisible::Tab {
5763 line_start_offset,
5764 line_end_offset,
5765 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
5766 Invisible::Whitespace { line_offset } => {
5767 (*line_offset, line_offset + 1, &layout.space_invisible)
5768 }
5769 };
5770
5771 let x_offset = self.x_for_index(token_offset);
5772 let invisible_offset =
5773 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
5774 let origin = content_origin
5775 + gpui::point(
5776 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
5777 line_y,
5778 );
5779
5780 (
5781 [token_offset, token_end_offset],
5782 Box::new(move |cx: &mut WindowContext| {
5783 invisible_symbol.paint(origin, line_height, cx).log_err();
5784 }),
5785 )
5786 };
5787
5788 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
5789 match whitespace_setting {
5790 ShowWhitespaceSetting::None => (),
5791 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(cx)),
5792 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
5793 let invisible_point = DisplayPoint::new(row, start as u32);
5794 if !selection_ranges
5795 .iter()
5796 .any(|region| region.start <= invisible_point && invisible_point < region.end)
5797 {
5798 return;
5799 }
5800
5801 paint(cx);
5802 }),
5803
5804 // For a whitespace to be on a boundary, any of the following conditions need to be met:
5805 // - It is a tab
5806 // - It is adjacent to an edge (start or end)
5807 // - It is adjacent to a whitespace (left or right)
5808 ShowWhitespaceSetting::Boundary => {
5809 // 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
5810 // the above cases.
5811 // Note: We zip in the original `invisibles` to check for tab equality
5812 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut WindowContext)>)> = None;
5813 for (([start, end], paint), invisible) in
5814 invisible_iter.zip_eq(self.invisibles.iter())
5815 {
5816 let should_render = match (&last_seen, invisible) {
5817 (_, Invisible::Tab { .. }) => true,
5818 (Some((_, last_end, _)), _) => *last_end == start,
5819 _ => false,
5820 };
5821
5822 if should_render || start == 0 || end == self.len {
5823 paint(cx);
5824
5825 // Since we are scanning from the left, we will skip over the first available whitespace that is part
5826 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
5827 if let Some((should_render_last, last_end, paint_last)) = last_seen {
5828 // Note that we need to make sure that the last one is actually adjacent
5829 if !should_render_last && last_end == start {
5830 paint_last(cx);
5831 }
5832 }
5833 }
5834
5835 // Manually render anything within a selection
5836 let invisible_point = DisplayPoint::new(row, start as u32);
5837 if selection_ranges.iter().any(|region| {
5838 region.start <= invisible_point && invisible_point < region.end
5839 }) {
5840 paint(cx);
5841 }
5842
5843 last_seen = Some((should_render, end, paint));
5844 }
5845 }
5846 }
5847 }
5848
5849 pub fn x_for_index(&self, index: usize) -> Pixels {
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_index = fragment_start_index + shaped_line.len;
5857 if index < fragment_end_index {
5858 return fragment_start_x
5859 + shaped_line.x_for_index(index - fragment_start_index);
5860 }
5861 fragment_start_x += shaped_line.width;
5862 fragment_start_index = fragment_end_index;
5863 }
5864 LineFragment::Element { len, size, .. } => {
5865 let fragment_end_index = fragment_start_index + len;
5866 if index < fragment_end_index {
5867 return fragment_start_x;
5868 }
5869 fragment_start_x += size.width;
5870 fragment_start_index = fragment_end_index;
5871 }
5872 }
5873 }
5874
5875 fragment_start_x
5876 }
5877
5878 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
5879 let mut fragment_start_x = Pixels::ZERO;
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_x = fragment_start_x + shaped_line.width;
5886 if x < fragment_end_x {
5887 return Some(
5888 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
5889 );
5890 }
5891 fragment_start_x = fragment_end_x;
5892 fragment_start_index += shaped_line.len;
5893 }
5894 LineFragment::Element { len, size, .. } => {
5895 let fragment_end_x = fragment_start_x + size.width;
5896 if x < fragment_end_x {
5897 return Some(fragment_start_index);
5898 }
5899 fragment_start_index += len;
5900 fragment_start_x = fragment_end_x;
5901 }
5902 }
5903 }
5904
5905 None
5906 }
5907
5908 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
5909 let mut fragment_start_index = 0;
5910
5911 for fragment in &self.fragments {
5912 match fragment {
5913 LineFragment::Text(shaped_line) => {
5914 let fragment_end_index = fragment_start_index + shaped_line.len;
5915 if index < fragment_end_index {
5916 return shaped_line.font_id_for_index(index - fragment_start_index);
5917 }
5918 fragment_start_index = fragment_end_index;
5919 }
5920 LineFragment::Element { len, .. } => {
5921 let fragment_end_index = fragment_start_index + len;
5922 if index < fragment_end_index {
5923 return None;
5924 }
5925 fragment_start_index = fragment_end_index;
5926 }
5927 }
5928 }
5929
5930 None
5931 }
5932}
5933
5934#[derive(Debug, Clone, Copy, PartialEq, Eq)]
5935enum Invisible {
5936 /// A tab character
5937 ///
5938 /// A tab character is internally represented by spaces (configured by the user's tab width)
5939 /// aligned to the nearest column, so it's necessary to store the start and end offset for
5940 /// adjacency checks.
5941 Tab {
5942 line_start_offset: usize,
5943 line_end_offset: usize,
5944 },
5945 Whitespace {
5946 line_offset: usize,
5947 },
5948}
5949
5950impl EditorElement {
5951 /// Returns the rem size to use when rendering the [`EditorElement`].
5952 ///
5953 /// This allows UI elements to scale based on the `buffer_font_size`.
5954 fn rem_size(&self, cx: &WindowContext) -> Option<Pixels> {
5955 match self.editor.read(cx).mode {
5956 EditorMode::Full => {
5957 let buffer_font_size = self.style.text.font_size;
5958 match buffer_font_size {
5959 AbsoluteLength::Pixels(pixels) => {
5960 let rem_size_scale = {
5961 // Our default UI font size is 14px on a 16px base scale.
5962 // This means the default UI font size is 0.875rems.
5963 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
5964
5965 // We then determine the delta between a single rem and the default font
5966 // size scale.
5967 let default_font_size_delta = 1. - default_font_size_scale;
5968
5969 // Finally, we add this delta to 1rem to get the scale factor that
5970 // should be used to scale up the UI.
5971 1. + default_font_size_delta
5972 };
5973
5974 Some(pixels * rem_size_scale)
5975 }
5976 AbsoluteLength::Rems(rems) => {
5977 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
5978 }
5979 }
5980 }
5981 // We currently use single-line and auto-height editors in UI contexts,
5982 // so we don't want to scale everything with the buffer font size, as it
5983 // ends up looking off.
5984 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
5985 }
5986 }
5987}
5988
5989impl Element for EditorElement {
5990 type RequestLayoutState = ();
5991 type PrepaintState = EditorLayout;
5992
5993 fn id(&self) -> Option<ElementId> {
5994 None
5995 }
5996
5997 fn request_layout(
5998 &mut self,
5999 _: Option<&GlobalElementId>,
6000 cx: &mut WindowContext,
6001 ) -> (gpui::LayoutId, ()) {
6002 let rem_size = self.rem_size(cx);
6003 cx.with_rem_size(rem_size, |cx| {
6004 self.editor.update(cx, |editor, cx| {
6005 editor.set_style(self.style.clone(), cx);
6006
6007 let layout_id = match editor.mode {
6008 EditorMode::SingleLine { auto_width } => {
6009 let rem_size = cx.rem_size();
6010
6011 let height = self.style.text.line_height_in_pixels(rem_size);
6012 if auto_width {
6013 let editor_handle = cx.view().clone();
6014 let style = self.style.clone();
6015 cx.request_measured_layout(Style::default(), move |_, _, cx| {
6016 let editor_snapshot =
6017 editor_handle.update(cx, |editor, cx| editor.snapshot(cx));
6018 let line = Self::layout_lines(
6019 DisplayRow(0)..DisplayRow(1),
6020 &editor_snapshot,
6021 &style,
6022 px(f32::MAX),
6023 |_| false, // Single lines never soft wrap
6024 cx,
6025 )
6026 .pop()
6027 .unwrap();
6028
6029 let font_id = cx.text_system().resolve_font(&style.text.font());
6030 let font_size = style.text.font_size.to_pixels(cx.rem_size());
6031 let em_width = cx
6032 .text_system()
6033 .typographic_bounds(font_id, font_size, 'm')
6034 .unwrap()
6035 .size
6036 .width;
6037
6038 size(line.width + em_width, height)
6039 })
6040 } else {
6041 let mut style = Style::default();
6042 style.size.height = height.into();
6043 style.size.width = relative(1.).into();
6044 cx.request_layout(style, None)
6045 }
6046 }
6047 EditorMode::AutoHeight { max_lines } => {
6048 let editor_handle = cx.view().clone();
6049 let max_line_number_width =
6050 self.max_line_number_width(&editor.snapshot(cx), cx);
6051 cx.request_measured_layout(
6052 Style::default(),
6053 move |known_dimensions, available_space, cx| {
6054 editor_handle
6055 .update(cx, |editor, cx| {
6056 compute_auto_height_layout(
6057 editor,
6058 max_lines,
6059 max_line_number_width,
6060 known_dimensions,
6061 available_space.width,
6062 cx,
6063 )
6064 })
6065 .unwrap_or_default()
6066 },
6067 )
6068 }
6069 EditorMode::Full => {
6070 let mut style = Style::default();
6071 style.size.width = relative(1.).into();
6072 style.size.height = relative(1.).into();
6073 cx.request_layout(style, None)
6074 }
6075 };
6076
6077 (layout_id, ())
6078 })
6079 })
6080 }
6081
6082 fn prepaint(
6083 &mut self,
6084 _: Option<&GlobalElementId>,
6085 bounds: Bounds<Pixels>,
6086 _: &mut Self::RequestLayoutState,
6087 cx: &mut WindowContext,
6088 ) -> Self::PrepaintState {
6089 let text_style = TextStyleRefinement {
6090 font_size: Some(self.style.text.font_size),
6091 line_height: Some(self.style.text.line_height),
6092 ..Default::default()
6093 };
6094 let focus_handle = self.editor.focus_handle(cx);
6095 cx.set_view_id(self.editor.entity_id());
6096 cx.set_focus_handle(&focus_handle);
6097
6098 let rem_size = self.rem_size(cx);
6099 cx.with_rem_size(rem_size, |cx| {
6100 cx.with_text_style(Some(text_style), |cx| {
6101 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
6102 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
6103 let style = self.style.clone();
6104
6105 let font_id = cx.text_system().resolve_font(&style.text.font());
6106 let font_size = style.text.font_size.to_pixels(cx.rem_size());
6107 let line_height = style.text.line_height_in_pixels(cx.rem_size());
6108 let em_width = cx
6109 .text_system()
6110 .typographic_bounds(font_id, font_size, 'm')
6111 .unwrap()
6112 .size
6113 .width;
6114 let em_advance = cx
6115 .text_system()
6116 .advance(font_id, font_size, 'm')
6117 .unwrap()
6118 .width;
6119
6120 let letter_size = size(em_width, line_height);
6121
6122 let gutter_dimensions = snapshot.gutter_dimensions(
6123 font_id,
6124 font_size,
6125 em_width,
6126 em_advance,
6127 self.max_line_number_width(&snapshot, cx),
6128 cx,
6129 );
6130 let text_width = bounds.size.width - gutter_dimensions.width;
6131
6132 let editor_width = text_width - gutter_dimensions.margin - em_width;
6133
6134 snapshot = self.editor.update(cx, |editor, cx| {
6135 editor.last_bounds = Some(bounds);
6136 editor.gutter_dimensions = gutter_dimensions;
6137 editor.set_visible_line_count(bounds.size.height / line_height, cx);
6138
6139 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6140 snapshot
6141 } else {
6142 let wrap_width = match editor.soft_wrap_mode(cx) {
6143 SoftWrap::GitDiff => None,
6144 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6145 SoftWrap::EditorWidth => Some(editor_width),
6146 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6147 SoftWrap::Bounded(column) => {
6148 Some(editor_width.min(column as f32 * em_advance))
6149 }
6150 };
6151
6152 if editor.set_wrap_width(wrap_width, cx) {
6153 editor.snapshot(cx)
6154 } else {
6155 snapshot
6156 }
6157 }
6158 });
6159
6160 let wrap_guides = self
6161 .editor
6162 .read(cx)
6163 .wrap_guides(cx)
6164 .iter()
6165 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
6166 .collect::<SmallVec<[_; 2]>>();
6167
6168 let hitbox = cx.insert_hitbox(bounds, false);
6169 let gutter_hitbox =
6170 cx.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6171 let text_hitbox = cx.insert_hitbox(
6172 Bounds {
6173 origin: gutter_hitbox.top_right(),
6174 size: size(text_width, bounds.size.height),
6175 },
6176 false,
6177 );
6178 // Offset the content_bounds from the text_bounds by the gutter margin (which
6179 // is roughly half a character wide) to make hit testing work more like how we want.
6180 let content_origin =
6181 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6182
6183 let scrollbar_bounds =
6184 Bounds::from_corners(content_origin, bounds.bottom_right());
6185
6186 let height_in_lines = scrollbar_bounds.size.height / line_height;
6187
6188 // NOTE: The max row number in the current file, minus one
6189 let max_row = snapshot.max_point().row().as_f32();
6190
6191 // NOTE: The max scroll position for the top of the window
6192 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6193 (max_row - height_in_lines + 1.).max(0.)
6194 } else {
6195 let settings = EditorSettings::get_global(cx);
6196 match settings.scroll_beyond_last_line {
6197 ScrollBeyondLastLine::OnePage => max_row,
6198 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6199 ScrollBeyondLastLine::VerticalScrollMargin => {
6200 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6201 .max(0.)
6202 }
6203 }
6204 };
6205
6206 // TODO: Autoscrolling for both axes
6207 let mut autoscroll_request = None;
6208 let mut autoscroll_containing_element = false;
6209 let mut autoscroll_horizontally = false;
6210 self.editor.update(cx, |editor, cx| {
6211 autoscroll_request = editor.autoscroll_request();
6212 autoscroll_containing_element =
6213 autoscroll_request.is_some() || editor.has_pending_selection();
6214 // TODO: Is this horizontal or vertical?!
6215 autoscroll_horizontally =
6216 editor.autoscroll_vertically(bounds, line_height, max_scroll_top, cx);
6217 snapshot = editor.snapshot(cx);
6218 });
6219
6220 let mut scroll_position = snapshot.scroll_position();
6221 // The scroll position is a fractional point, the whole number of which represents
6222 // the top of the window in terms of display rows.
6223 let start_row = DisplayRow(scroll_position.y as u32);
6224 let max_row = snapshot.max_point().row();
6225 let end_row = cmp::min(
6226 (scroll_position.y + height_in_lines).ceil() as u32,
6227 max_row.next_row().0,
6228 );
6229 let end_row = DisplayRow(end_row);
6230
6231 let buffer_rows = snapshot
6232 .buffer_rows(start_row)
6233 .take((start_row..end_row).len())
6234 .collect::<Vec<_>>();
6235 let is_row_soft_wrapped =
6236 |row| buffer_rows.get(row).copied().flatten().is_none();
6237
6238 let start_anchor = if start_row == Default::default() {
6239 Anchor::min()
6240 } else {
6241 snapshot.buffer_snapshot.anchor_before(
6242 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6243 )
6244 };
6245 let end_anchor = if end_row > max_row {
6246 Anchor::max()
6247 } else {
6248 snapshot.buffer_snapshot.anchor_before(
6249 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6250 )
6251 };
6252
6253 let highlighted_rows = self
6254 .editor
6255 .update(cx, |editor, cx| editor.highlighted_display_rows(cx));
6256 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6257 start_anchor..end_anchor,
6258 &snapshot.display_snapshot,
6259 cx.theme().colors(),
6260 );
6261 let highlighted_gutter_ranges =
6262 self.editor.read(cx).gutter_highlights_in_range(
6263 start_anchor..end_anchor,
6264 &snapshot.display_snapshot,
6265 cx,
6266 );
6267
6268 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6269 start_anchor..end_anchor,
6270 &snapshot.display_snapshot,
6271 cx,
6272 );
6273
6274 let (local_selections, selected_buffer_ids): (
6275 Vec<Selection<Point>>,
6276 Vec<BufferId>,
6277 ) = self.editor.update(cx, |editor, cx| {
6278 let all_selections = editor.selections.all::<Point>(cx);
6279 let selected_buffer_ids = if editor.is_singleton(cx) {
6280 Vec::new()
6281 } else {
6282 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6283
6284 for selection in all_selections {
6285 for buffer_id in snapshot
6286 .buffer_snapshot
6287 .buffer_ids_in_selected_rows(selection)
6288 {
6289 if selected_buffer_ids.last() != Some(&buffer_id) {
6290 selected_buffer_ids.push(buffer_id);
6291 }
6292 }
6293 }
6294
6295 selected_buffer_ids
6296 };
6297
6298 let mut selections = editor
6299 .selections
6300 .disjoint_in_range(start_anchor..end_anchor, cx);
6301 selections.extend(editor.selections.pending(cx));
6302
6303 (selections, selected_buffer_ids)
6304 });
6305
6306 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6307 start_anchor,
6308 end_anchor,
6309 &local_selections,
6310 &snapshot,
6311 start_row,
6312 end_row,
6313 cx,
6314 );
6315
6316 let line_numbers = self.layout_line_numbers(
6317 Some(&gutter_hitbox),
6318 gutter_dimensions,
6319 line_height,
6320 scroll_position,
6321 start_row..end_row,
6322 buffer_rows.iter().copied(),
6323 newest_selection_head,
6324 &snapshot,
6325 cx,
6326 );
6327
6328 let mut crease_toggles = cx.with_element_namespace("crease_toggles", |cx| {
6329 self.layout_crease_toggles(
6330 start_row..end_row,
6331 buffer_rows.iter().copied(),
6332 &active_rows,
6333 &snapshot,
6334 cx,
6335 )
6336 });
6337 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
6338 self.layout_crease_trailers(buffer_rows.iter().copied(), &snapshot, cx)
6339 });
6340
6341 let display_hunks = self.layout_gutter_git_hunks(
6342 line_height,
6343 &gutter_hitbox,
6344 start_row..end_row,
6345 start_anchor..end_anchor,
6346 &snapshot,
6347 cx,
6348 );
6349
6350 let mut max_visible_line_width = Pixels::ZERO;
6351 let mut line_layouts = Self::layout_lines(
6352 start_row..end_row,
6353 &snapshot,
6354 &self.style,
6355 editor_width,
6356 is_row_soft_wrapped,
6357 cx,
6358 );
6359 for line_with_invisibles in &line_layouts {
6360 if line_with_invisibles.width > max_visible_line_width {
6361 max_visible_line_width = line_with_invisibles.width;
6362 }
6363 }
6364
6365 let longest_line_width = layout_line(
6366 snapshot.longest_row(),
6367 &snapshot,
6368 &style,
6369 editor_width,
6370 is_row_soft_wrapped,
6371 cx,
6372 )
6373 .width;
6374
6375 let scrollbar_range_data = ScrollbarRangeData::new(
6376 scrollbar_bounds,
6377 letter_size,
6378 &snapshot,
6379 longest_line_width,
6380 &style,
6381 cx,
6382 );
6383
6384 let scroll_range_bounds = scrollbar_range_data.scroll_range;
6385 let mut scroll_width = scroll_range_bounds.size.width;
6386
6387 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6388 snapshot.sticky_header_excerpt(start_row)
6389 } else {
6390 None
6391 };
6392 let sticky_header_excerpt_id =
6393 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6394
6395 let blocks = cx.with_element_namespace("blocks", |cx| {
6396 self.render_blocks(
6397 start_row..end_row,
6398 &snapshot,
6399 &hitbox,
6400 &text_hitbox,
6401 editor_width,
6402 &mut scroll_width,
6403 &gutter_dimensions,
6404 em_width,
6405 gutter_dimensions.full_width(),
6406 line_height,
6407 &line_layouts,
6408 &local_selections,
6409 &selected_buffer_ids,
6410 is_row_soft_wrapped,
6411 sticky_header_excerpt_id,
6412 cx,
6413 )
6414 });
6415 let mut blocks = match blocks {
6416 Ok(blocks) => blocks,
6417 Err(resized_blocks) => {
6418 self.editor.update(cx, |editor, cx| {
6419 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6420 });
6421 return self.prepaint(None, bounds, &mut (), cx);
6422 }
6423 };
6424
6425 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6426 cx.with_element_namespace("blocks", |cx| {
6427 self.layout_sticky_buffer_header(
6428 sticky_header_excerpt,
6429 scroll_position.y,
6430 line_height,
6431 &snapshot,
6432 &hitbox,
6433 &selected_buffer_ids,
6434 cx,
6435 )
6436 })
6437 });
6438
6439 let start_buffer_row =
6440 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
6441 let end_buffer_row =
6442 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
6443
6444 let scroll_max = point(
6445 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6446 max_row.as_f32(),
6447 );
6448
6449 self.editor.update(cx, |editor, cx| {
6450 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6451
6452 let autoscrolled = if autoscroll_horizontally {
6453 editor.autoscroll_horizontally(
6454 start_row,
6455 text_hitbox.size.width,
6456 scroll_width,
6457 em_width,
6458 &line_layouts,
6459 cx,
6460 )
6461 } else {
6462 false
6463 };
6464
6465 if clamped || autoscrolled {
6466 snapshot = editor.snapshot(cx);
6467 scroll_position = snapshot.scroll_position();
6468 }
6469 });
6470
6471 let scroll_pixel_position = point(
6472 scroll_position.x * em_width,
6473 scroll_position.y * line_height,
6474 );
6475
6476 let indent_guides = self.layout_indent_guides(
6477 content_origin,
6478 text_hitbox.origin,
6479 start_buffer_row..end_buffer_row,
6480 scroll_pixel_position,
6481 line_height,
6482 &snapshot,
6483 cx,
6484 );
6485
6486 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
6487 self.prepaint_crease_trailers(
6488 crease_trailers,
6489 &line_layouts,
6490 line_height,
6491 content_origin,
6492 scroll_pixel_position,
6493 em_width,
6494 cx,
6495 )
6496 });
6497
6498 let mut inline_blame = None;
6499 if let Some(newest_selection_head) = newest_selection_head {
6500 let display_row = newest_selection_head.row();
6501 if (start_row..end_row).contains(&display_row) {
6502 let line_ix = display_row.minus(start_row) as usize;
6503 let line_layout = &line_layouts[line_ix];
6504 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
6505 inline_blame = self.layout_inline_blame(
6506 display_row,
6507 &snapshot.display_snapshot,
6508 line_layout,
6509 crease_trailer_layout,
6510 em_width,
6511 content_origin,
6512 scroll_pixel_position,
6513 line_height,
6514 cx,
6515 );
6516 }
6517 }
6518
6519 let blamed_display_rows = self.layout_blame_entries(
6520 buffer_rows.into_iter(),
6521 em_width,
6522 scroll_position,
6523 line_height,
6524 &gutter_hitbox,
6525 gutter_dimensions.git_blame_entries_width,
6526 cx,
6527 );
6528
6529 let scroll_max = point(
6530 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6531 max_scroll_top,
6532 );
6533
6534 self.editor.update(cx, |editor, cx| {
6535 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6536
6537 let autoscrolled = if autoscroll_horizontally {
6538 editor.autoscroll_horizontally(
6539 start_row,
6540 text_hitbox.size.width,
6541 scroll_width,
6542 em_width,
6543 &line_layouts,
6544 cx,
6545 )
6546 } else {
6547 false
6548 };
6549
6550 if clamped || autoscrolled {
6551 snapshot = editor.snapshot(cx);
6552 scroll_position = snapshot.scroll_position();
6553 }
6554 });
6555
6556 let line_elements = self.prepaint_lines(
6557 start_row,
6558 &mut line_layouts,
6559 line_height,
6560 scroll_pixel_position,
6561 content_origin,
6562 cx,
6563 );
6564
6565 let mut block_start_rows = HashSet::default();
6566
6567 cx.with_element_namespace("blocks", |cx| {
6568 self.layout_blocks(
6569 &mut blocks,
6570 &mut block_start_rows,
6571 &hitbox,
6572 line_height,
6573 scroll_pixel_position,
6574 cx,
6575 );
6576 });
6577
6578 let cursors = self.collect_cursors(&snapshot, cx);
6579 let visible_row_range = start_row..end_row;
6580 let non_visible_cursors = cursors
6581 .iter()
6582 .any(move |c| !visible_row_range.contains(&c.0.row()));
6583
6584 let visible_cursors = self.layout_visible_cursors(
6585 &snapshot,
6586 &selections,
6587 &block_start_rows,
6588 start_row..end_row,
6589 &line_layouts,
6590 &text_hitbox,
6591 content_origin,
6592 scroll_position,
6593 scroll_pixel_position,
6594 line_height,
6595 em_width,
6596 em_advance,
6597 autoscroll_containing_element,
6598 cx,
6599 );
6600
6601 let scrollbars_layout = self.layout_scrollbars(
6602 &snapshot,
6603 scrollbar_range_data,
6604 scroll_position,
6605 non_visible_cursors,
6606 cx,
6607 );
6608
6609 let gutter_settings = EditorSettings::get_global(cx).gutter;
6610
6611 let expanded_add_hunks_by_rows = self.editor.update(cx, |editor, _| {
6612 editor
6613 .diff_map
6614 .hunks(false)
6615 .filter(|hunk| hunk.status == DiffHunkStatus::Added)
6616 .map(|expanded_hunk| {
6617 let start_row = expanded_hunk
6618 .hunk_range
6619 .start
6620 .to_display_point(&snapshot)
6621 .row();
6622 (start_row, expanded_hunk.clone())
6623 })
6624 .collect::<HashMap<_, _>>()
6625 });
6626
6627 let rows_with_hunk_bounds = display_hunks
6628 .iter()
6629 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
6630 .fold(
6631 HashMap::default(),
6632 |mut rows_with_hunk_bounds, (hunk, bounds)| {
6633 match hunk {
6634 DisplayDiffHunk::Folded { display_row } => {
6635 rows_with_hunk_bounds.insert(*display_row, bounds);
6636 }
6637 DisplayDiffHunk::Unfolded {
6638 display_row_range, ..
6639 } => {
6640 for display_row in display_row_range.iter_rows() {
6641 rows_with_hunk_bounds.insert(display_row, bounds);
6642 }
6643 }
6644 }
6645 rows_with_hunk_bounds
6646 },
6647 );
6648 let mut code_actions_indicator = None;
6649 if let Some(newest_selection_head) = newest_selection_head {
6650 if (start_row..end_row).contains(&newest_selection_head.row()) {
6651 self.layout_context_menu(
6652 line_height,
6653 &text_hitbox,
6654 content_origin,
6655 start_row,
6656 scroll_pixel_position,
6657 &line_layouts,
6658 newest_selection_head,
6659 gutter_dimensions.width - gutter_dimensions.left_padding,
6660 cx,
6661 );
6662
6663 let show_code_actions = snapshot
6664 .show_code_actions
6665 .unwrap_or(gutter_settings.code_actions);
6666 if show_code_actions {
6667 let newest_selection_point =
6668 newest_selection_head.to_point(&snapshot.display_snapshot);
6669 let newest_selection_display_row =
6670 newest_selection_point.to_display_point(&snapshot).row();
6671 if !expanded_add_hunks_by_rows
6672 .contains_key(&newest_selection_display_row)
6673 {
6674 if !snapshot
6675 .is_line_folded(MultiBufferRow(newest_selection_point.row))
6676 {
6677 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
6678 MultiBufferRow(newest_selection_point.row),
6679 );
6680 if let Some((buffer, range)) = buffer {
6681 let buffer_id = buffer.remote_id();
6682 let row = range.start.row;
6683 let has_test_indicator = self
6684 .editor
6685 .read(cx)
6686 .tasks
6687 .contains_key(&(buffer_id, row));
6688
6689 if !has_test_indicator {
6690 code_actions_indicator = self
6691 .layout_code_actions_indicator(
6692 line_height,
6693 newest_selection_head,
6694 scroll_pixel_position,
6695 &gutter_dimensions,
6696 &gutter_hitbox,
6697 &rows_with_hunk_bounds,
6698 cx,
6699 );
6700 }
6701 }
6702 }
6703 }
6704 }
6705 }
6706 }
6707
6708 let test_indicators = if gutter_settings.runnables {
6709 self.layout_run_indicators(
6710 line_height,
6711 start_row..end_row,
6712 scroll_pixel_position,
6713 &gutter_dimensions,
6714 &gutter_hitbox,
6715 &rows_with_hunk_bounds,
6716 &snapshot,
6717 cx,
6718 )
6719 } else {
6720 Vec::new()
6721 };
6722
6723 self.layout_signature_help(
6724 &hitbox,
6725 content_origin,
6726 scroll_pixel_position,
6727 newest_selection_head,
6728 start_row,
6729 &line_layouts,
6730 line_height,
6731 em_width,
6732 cx,
6733 );
6734
6735 if !cx.has_active_drag() {
6736 self.layout_hover_popovers(
6737 &snapshot,
6738 &hitbox,
6739 &text_hitbox,
6740 start_row..end_row,
6741 content_origin,
6742 scroll_pixel_position,
6743 &line_layouts,
6744 line_height,
6745 em_width,
6746 cx,
6747 );
6748 }
6749
6750 let inline_completion_popover = self.layout_inline_completion_popover(
6751 &text_hitbox.bounds,
6752 &snapshot,
6753 start_row..end_row,
6754 scroll_position.y,
6755 scroll_position.y + height_in_lines,
6756 &line_layouts,
6757 line_height,
6758 scroll_pixel_position,
6759 editor_width,
6760 &style,
6761 cx,
6762 );
6763
6764 let mouse_context_menu = self.layout_mouse_context_menu(
6765 &snapshot,
6766 start_row..end_row,
6767 content_origin,
6768 cx,
6769 );
6770
6771 cx.with_element_namespace("crease_toggles", |cx| {
6772 self.prepaint_crease_toggles(
6773 &mut crease_toggles,
6774 line_height,
6775 &gutter_dimensions,
6776 gutter_settings,
6777 scroll_pixel_position,
6778 &gutter_hitbox,
6779 cx,
6780 )
6781 });
6782
6783 let invisible_symbol_font_size = font_size / 2.;
6784 let tab_invisible = cx
6785 .text_system()
6786 .shape_line(
6787 "→".into(),
6788 invisible_symbol_font_size,
6789 &[TextRun {
6790 len: "→".len(),
6791 font: self.style.text.font(),
6792 color: cx.theme().colors().editor_invisible,
6793 background_color: None,
6794 underline: None,
6795 strikethrough: None,
6796 }],
6797 )
6798 .unwrap();
6799 let space_invisible = cx
6800 .text_system()
6801 .shape_line(
6802 "•".into(),
6803 invisible_symbol_font_size,
6804 &[TextRun {
6805 len: "•".len(),
6806 font: self.style.text.font(),
6807 color: cx.theme().colors().editor_invisible,
6808 background_color: None,
6809 underline: None,
6810 strikethrough: None,
6811 }],
6812 )
6813 .unwrap();
6814
6815 EditorLayout {
6816 mode: snapshot.mode,
6817 position_map: Rc::new(PositionMap {
6818 size: bounds.size,
6819 scroll_pixel_position,
6820 scroll_max,
6821 line_layouts,
6822 line_height,
6823 em_width,
6824 em_advance,
6825 snapshot,
6826 }),
6827 visible_display_row_range: start_row..end_row,
6828 wrap_guides,
6829 indent_guides,
6830 hitbox,
6831 text_hitbox,
6832 gutter_hitbox,
6833 display_hunks,
6834 content_origin,
6835 scrollbars_layout,
6836 active_rows,
6837 highlighted_rows,
6838 highlighted_ranges,
6839 highlighted_gutter_ranges,
6840 redacted_ranges,
6841 line_elements,
6842 line_numbers,
6843 blamed_display_rows,
6844 inline_blame,
6845 blocks,
6846 cursors,
6847 visible_cursors,
6848 selections,
6849 inline_completion_popover,
6850 mouse_context_menu,
6851 test_indicators,
6852 code_actions_indicator,
6853 crease_toggles,
6854 crease_trailers,
6855 tab_invisible,
6856 space_invisible,
6857 sticky_buffer_header,
6858 }
6859 })
6860 })
6861 })
6862 }
6863
6864 fn paint(
6865 &mut self,
6866 _: Option<&GlobalElementId>,
6867 bounds: Bounds<gpui::Pixels>,
6868 _: &mut Self::RequestLayoutState,
6869 layout: &mut Self::PrepaintState,
6870 cx: &mut WindowContext,
6871 ) {
6872 let focus_handle = self.editor.focus_handle(cx);
6873 let key_context = self.editor.update(cx, |editor, cx| editor.key_context(cx));
6874
6875 cx.set_key_context(key_context);
6876 cx.handle_input(
6877 &focus_handle,
6878 ElementInputHandler::new(bounds, self.editor.clone()),
6879 );
6880 self.register_actions(cx);
6881 self.register_key_listeners(cx, layout);
6882
6883 let text_style = TextStyleRefinement {
6884 font_size: Some(self.style.text.font_size),
6885 line_height: Some(self.style.text.line_height),
6886 ..Default::default()
6887 };
6888 let hovered_hunk = layout
6889 .display_hunks
6890 .iter()
6891 .find_map(|(hunk, hunk_hitbox)| match hunk {
6892 DisplayDiffHunk::Folded { .. } => None,
6893 DisplayDiffHunk::Unfolded {
6894 diff_base_byte_range,
6895 multi_buffer_range,
6896 status,
6897 ..
6898 } => {
6899 if hunk_hitbox
6900 .as_ref()
6901 .map(|hitbox| hitbox.is_hovered(cx))
6902 .unwrap_or(false)
6903 {
6904 Some(HoveredHunk {
6905 status: *status,
6906 multi_buffer_range: multi_buffer_range.clone(),
6907 diff_base_byte_range: diff_base_byte_range.clone(),
6908 })
6909 } else {
6910 None
6911 }
6912 }
6913 });
6914 let rem_size = self.rem_size(cx);
6915 cx.with_rem_size(rem_size, |cx| {
6916 cx.with_text_style(Some(text_style), |cx| {
6917 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
6918 self.paint_mouse_listeners(layout, hovered_hunk, cx);
6919 self.paint_background(layout, cx);
6920 self.paint_indent_guides(layout, cx);
6921
6922 if layout.gutter_hitbox.size.width > Pixels::ZERO {
6923 self.paint_blamed_display_rows(layout, cx);
6924 self.paint_line_numbers(layout, cx);
6925 }
6926
6927 self.paint_text(layout, cx);
6928
6929 if layout.gutter_hitbox.size.width > Pixels::ZERO {
6930 self.paint_gutter_highlights(layout, cx);
6931 self.paint_gutter_indicators(layout, cx);
6932 }
6933
6934 if !layout.blocks.is_empty() {
6935 cx.with_element_namespace("blocks", |cx| {
6936 self.paint_blocks(layout, cx);
6937 });
6938 }
6939
6940 cx.with_element_namespace("blocks", |cx| {
6941 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
6942 sticky_header.paint(cx)
6943 }
6944 });
6945
6946 self.paint_scrollbars(layout, cx);
6947 self.paint_inline_completion_popover(layout, cx);
6948 self.paint_mouse_context_menu(layout, cx);
6949 });
6950 })
6951 })
6952 }
6953}
6954
6955pub(super) fn gutter_bounds(
6956 editor_bounds: Bounds<Pixels>,
6957 gutter_dimensions: GutterDimensions,
6958) -> Bounds<Pixels> {
6959 Bounds {
6960 origin: editor_bounds.origin,
6961 size: size(gutter_dimensions.width, editor_bounds.size.height),
6962 }
6963}
6964
6965struct ScrollbarRangeData {
6966 scrollbar_bounds: Bounds<Pixels>,
6967 scroll_range: Bounds<Pixels>,
6968 letter_size: Size<Pixels>,
6969}
6970
6971impl ScrollbarRangeData {
6972 pub fn new(
6973 scrollbar_bounds: Bounds<Pixels>,
6974 letter_size: Size<Pixels>,
6975 snapshot: &EditorSnapshot,
6976 longest_line_width: Pixels,
6977 style: &EditorStyle,
6978 cx: &WindowContext,
6979 ) -> ScrollbarRangeData {
6980 // TODO: Simplify this function down, it requires a lot of parameters
6981 let max_row = snapshot.max_point().row();
6982 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
6983
6984 let scrollbar_width = style.scrollbar_width;
6985
6986 let settings = EditorSettings::get_global(cx);
6987 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
6988 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
6989 ScrollBeyondLastLine::Off => px(1.),
6990 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
6991 };
6992
6993 let overscroll = size(
6994 scrollbar_width + (letter_size.width / 2.0),
6995 letter_size.height * scroll_beyond_last_line,
6996 );
6997
6998 let scroll_range = Bounds {
6999 origin: scrollbar_bounds.origin,
7000 size: text_bounds_size + overscroll,
7001 };
7002
7003 ScrollbarRangeData {
7004 scrollbar_bounds,
7005 scroll_range,
7006 letter_size,
7007 }
7008 }
7009}
7010
7011impl IntoElement for EditorElement {
7012 type Element = Self;
7013
7014 fn into_element(self) -> Self::Element {
7015 self
7016 }
7017}
7018
7019pub struct EditorLayout {
7020 position_map: Rc<PositionMap>,
7021 hitbox: Hitbox,
7022 text_hitbox: Hitbox,
7023 gutter_hitbox: Hitbox,
7024 content_origin: gpui::Point<Pixels>,
7025 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7026 mode: EditorMode,
7027 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7028 indent_guides: Option<Vec<IndentGuideLayout>>,
7029 visible_display_row_range: Range<DisplayRow>,
7030 active_rows: BTreeMap<DisplayRow, bool>,
7031 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7032 line_elements: SmallVec<[AnyElement; 1]>,
7033 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7034 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7035 blamed_display_rows: Option<Vec<AnyElement>>,
7036 inline_blame: Option<AnyElement>,
7037 blocks: Vec<BlockLayout>,
7038 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7039 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7040 redacted_ranges: Vec<Range<DisplayPoint>>,
7041 cursors: Vec<(DisplayPoint, Hsla)>,
7042 visible_cursors: Vec<CursorLayout>,
7043 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7044 code_actions_indicator: Option<AnyElement>,
7045 test_indicators: Vec<AnyElement>,
7046 crease_toggles: Vec<Option<AnyElement>>,
7047 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7048 inline_completion_popover: Option<AnyElement>,
7049 mouse_context_menu: Option<AnyElement>,
7050 tab_invisible: ShapedLine,
7051 space_invisible: ShapedLine,
7052 sticky_buffer_header: Option<AnyElement>,
7053}
7054
7055impl EditorLayout {
7056 fn line_end_overshoot(&self) -> Pixels {
7057 0.15 * self.position_map.line_height
7058 }
7059}
7060
7061struct LineNumberLayout {
7062 shaped_line: ShapedLine,
7063 hitbox: Option<Hitbox>,
7064 display_row: DisplayRow,
7065}
7066
7067struct ColoredRange<T> {
7068 start: T,
7069 end: T,
7070 color: Hsla,
7071}
7072
7073#[derive(Clone)]
7074struct ScrollbarLayout {
7075 hitbox: Hitbox,
7076 visible_range: Range<f32>,
7077 visible: bool,
7078 text_unit_size: Pixels,
7079 thumb_size: Pixels,
7080 axis: Axis,
7081}
7082
7083impl ScrollbarLayout {
7084 const BORDER_WIDTH: Pixels = px(1.0);
7085 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7086 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7087 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7088
7089 fn thumb_bounds(&self) -> Bounds<Pixels> {
7090 match self.axis {
7091 Axis::Vertical => {
7092 let thumb_top = self.y_for_row(self.visible_range.start);
7093 let thumb_bottom = thumb_top + self.thumb_size;
7094 Bounds::from_corners(
7095 point(self.hitbox.left(), thumb_top),
7096 point(self.hitbox.right(), thumb_bottom),
7097 )
7098 }
7099 Axis::Horizontal => {
7100 let thumb_left =
7101 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7102 let thumb_right = thumb_left + self.thumb_size;
7103 Bounds::from_corners(
7104 point(thumb_left, self.hitbox.top()),
7105 point(thumb_right, self.hitbox.bottom()),
7106 )
7107 }
7108 }
7109 }
7110
7111 fn y_for_row(&self, row: f32) -> Pixels {
7112 self.hitbox.top() + row * self.text_unit_size
7113 }
7114
7115 fn marker_quads_for_ranges(
7116 &self,
7117 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7118 column: Option<usize>,
7119 ) -> Vec<PaintQuad> {
7120 struct MinMax {
7121 min: Pixels,
7122 max: Pixels,
7123 }
7124 let (x_range, height_limit) = if let Some(column) = column {
7125 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7126 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7127 let end = start + column_width;
7128 (
7129 Range { start, end },
7130 MinMax {
7131 min: Self::MIN_MARKER_HEIGHT,
7132 max: px(f32::MAX),
7133 },
7134 )
7135 } else {
7136 (
7137 Range {
7138 start: Self::BORDER_WIDTH,
7139 end: self.hitbox.size.width,
7140 },
7141 MinMax {
7142 min: Self::LINE_MARKER_HEIGHT,
7143 max: Self::LINE_MARKER_HEIGHT,
7144 },
7145 )
7146 };
7147
7148 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7149 let mut pixel_ranges = row_ranges
7150 .into_iter()
7151 .map(|range| {
7152 let start_y = row_to_y(range.start);
7153 let end_y = row_to_y(range.end)
7154 + self
7155 .text_unit_size
7156 .max(height_limit.min)
7157 .min(height_limit.max);
7158 ColoredRange {
7159 start: start_y,
7160 end: end_y,
7161 color: range.color,
7162 }
7163 })
7164 .peekable();
7165
7166 let mut quads = Vec::new();
7167 while let Some(mut pixel_range) = pixel_ranges.next() {
7168 while let Some(next_pixel_range) = pixel_ranges.peek() {
7169 if pixel_range.end >= next_pixel_range.start - px(1.0)
7170 && pixel_range.color == next_pixel_range.color
7171 {
7172 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7173 pixel_ranges.next();
7174 } else {
7175 break;
7176 }
7177 }
7178
7179 let bounds = Bounds::from_corners(
7180 point(x_range.start, pixel_range.start),
7181 point(x_range.end, pixel_range.end),
7182 );
7183 quads.push(quad(
7184 bounds,
7185 Corners::default(),
7186 pixel_range.color,
7187 Edges::default(),
7188 Hsla::transparent_black(),
7189 ));
7190 }
7191
7192 quads
7193 }
7194}
7195
7196struct CreaseTrailerLayout {
7197 element: AnyElement,
7198 bounds: Bounds<Pixels>,
7199}
7200
7201struct PositionMap {
7202 size: Size<Pixels>,
7203 line_height: Pixels,
7204 scroll_pixel_position: gpui::Point<Pixels>,
7205 scroll_max: gpui::Point<f32>,
7206 em_width: Pixels,
7207 em_advance: Pixels,
7208 line_layouts: Vec<LineWithInvisibles>,
7209 snapshot: EditorSnapshot,
7210}
7211
7212#[derive(Debug, Copy, Clone)]
7213pub struct PointForPosition {
7214 pub previous_valid: DisplayPoint,
7215 pub next_valid: DisplayPoint,
7216 pub exact_unclipped: DisplayPoint,
7217 pub column_overshoot_after_line_end: u32,
7218}
7219
7220impl PointForPosition {
7221 pub fn as_valid(&self) -> Option<DisplayPoint> {
7222 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7223 Some(self.previous_valid)
7224 } else {
7225 None
7226 }
7227 }
7228}
7229
7230impl PositionMap {
7231 fn point_for_position(
7232 &self,
7233 text_bounds: Bounds<Pixels>,
7234 position: gpui::Point<Pixels>,
7235 ) -> PointForPosition {
7236 let scroll_position = self.snapshot.scroll_position();
7237 let position = position - text_bounds.origin;
7238 let y = position.y.max(px(0.)).min(self.size.height);
7239 let x = position.x + (scroll_position.x * self.em_width);
7240 let row = ((y / self.line_height) + scroll_position.y) as u32;
7241
7242 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7243 .line_layouts
7244 .get(row as usize - scroll_position.y as usize)
7245 {
7246 if let Some(ix) = line.index_for_x(x) {
7247 (ix as u32, px(0.))
7248 } else {
7249 (line.len as u32, px(0.).max(x - line.width))
7250 }
7251 } else {
7252 (0, x)
7253 };
7254
7255 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7256 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7257 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7258
7259 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7260 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7261 PointForPosition {
7262 previous_valid,
7263 next_valid,
7264 exact_unclipped,
7265 column_overshoot_after_line_end,
7266 }
7267 }
7268}
7269
7270struct BlockLayout {
7271 id: BlockId,
7272 row: Option<DisplayRow>,
7273 element: AnyElement,
7274 available_space: Size<AvailableSpace>,
7275 style: BlockStyle,
7276}
7277
7278fn layout_line(
7279 row: DisplayRow,
7280 snapshot: &EditorSnapshot,
7281 style: &EditorStyle,
7282 text_width: Pixels,
7283 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7284 cx: &mut WindowContext,
7285) -> LineWithInvisibles {
7286 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7287 LineWithInvisibles::from_chunks(
7288 chunks,
7289 &style,
7290 MAX_LINE_LEN,
7291 1,
7292 snapshot.mode,
7293 text_width,
7294 is_row_soft_wrapped,
7295 cx,
7296 )
7297 .pop()
7298 .unwrap()
7299}
7300
7301#[derive(Debug)]
7302pub struct IndentGuideLayout {
7303 origin: gpui::Point<Pixels>,
7304 length: Pixels,
7305 single_indent_width: Pixels,
7306 depth: u32,
7307 active: bool,
7308 settings: IndentGuideSettings,
7309}
7310
7311pub struct CursorLayout {
7312 origin: gpui::Point<Pixels>,
7313 block_width: Pixels,
7314 line_height: Pixels,
7315 color: Hsla,
7316 shape: CursorShape,
7317 block_text: Option<ShapedLine>,
7318 cursor_name: Option<AnyElement>,
7319}
7320
7321#[derive(Debug)]
7322pub struct CursorName {
7323 string: SharedString,
7324 color: Hsla,
7325 is_top_row: bool,
7326}
7327
7328impl CursorLayout {
7329 pub fn new(
7330 origin: gpui::Point<Pixels>,
7331 block_width: Pixels,
7332 line_height: Pixels,
7333 color: Hsla,
7334 shape: CursorShape,
7335 block_text: Option<ShapedLine>,
7336 ) -> CursorLayout {
7337 CursorLayout {
7338 origin,
7339 block_width,
7340 line_height,
7341 color,
7342 shape,
7343 block_text,
7344 cursor_name: None,
7345 }
7346 }
7347
7348 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7349 Bounds {
7350 origin: self.origin + origin,
7351 size: size(self.block_width, self.line_height),
7352 }
7353 }
7354
7355 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7356 match self.shape {
7357 CursorShape::Bar => Bounds {
7358 origin: self.origin + origin,
7359 size: size(px(2.0), self.line_height),
7360 },
7361 CursorShape::Block | CursorShape::Hollow => Bounds {
7362 origin: self.origin + origin,
7363 size: size(self.block_width, self.line_height),
7364 },
7365 CursorShape::Underline => Bounds {
7366 origin: self.origin
7367 + origin
7368 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
7369 size: size(self.block_width, px(2.0)),
7370 },
7371 }
7372 }
7373
7374 pub fn layout(
7375 &mut self,
7376 origin: gpui::Point<Pixels>,
7377 cursor_name: Option<CursorName>,
7378 cx: &mut WindowContext,
7379 ) {
7380 if let Some(cursor_name) = cursor_name {
7381 let bounds = self.bounds(origin);
7382 let text_size = self.line_height / 1.5;
7383
7384 let name_origin = if cursor_name.is_top_row {
7385 point(bounds.right() - px(1.), bounds.top())
7386 } else {
7387 match self.shape {
7388 CursorShape::Bar => point(
7389 bounds.right() - px(2.),
7390 bounds.top() - text_size / 2. - px(1.),
7391 ),
7392 _ => point(
7393 bounds.right() - px(1.),
7394 bounds.top() - text_size / 2. - px(1.),
7395 ),
7396 }
7397 };
7398 let mut name_element = div()
7399 .bg(self.color)
7400 .text_size(text_size)
7401 .px_0p5()
7402 .line_height(text_size + px(2.))
7403 .text_color(cursor_name.color)
7404 .child(cursor_name.string.clone())
7405 .into_any_element();
7406
7407 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), cx);
7408
7409 self.cursor_name = Some(name_element);
7410 }
7411 }
7412
7413 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
7414 let bounds = self.bounds(origin);
7415
7416 //Draw background or border quad
7417 let cursor = if matches!(self.shape, CursorShape::Hollow) {
7418 outline(bounds, self.color)
7419 } else {
7420 fill(bounds, self.color)
7421 };
7422
7423 if let Some(name) = &mut self.cursor_name {
7424 name.paint(cx);
7425 }
7426
7427 cx.paint_quad(cursor);
7428
7429 if let Some(block_text) = &self.block_text {
7430 block_text
7431 .paint(self.origin + origin, self.line_height, cx)
7432 .log_err();
7433 }
7434 }
7435
7436 pub fn shape(&self) -> CursorShape {
7437 self.shape
7438 }
7439}
7440
7441#[derive(Debug)]
7442pub struct HighlightedRange {
7443 pub start_y: Pixels,
7444 pub line_height: Pixels,
7445 pub lines: Vec<HighlightedRangeLine>,
7446 pub color: Hsla,
7447 pub corner_radius: Pixels,
7448}
7449
7450#[derive(Debug)]
7451pub struct HighlightedRangeLine {
7452 pub start_x: Pixels,
7453 pub end_x: Pixels,
7454}
7455
7456impl HighlightedRange {
7457 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
7458 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
7459 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
7460 self.paint_lines(
7461 self.start_y + self.line_height,
7462 &self.lines[1..],
7463 bounds,
7464 cx,
7465 );
7466 } else {
7467 self.paint_lines(self.start_y, &self.lines, bounds, cx);
7468 }
7469 }
7470
7471 fn paint_lines(
7472 &self,
7473 start_y: Pixels,
7474 lines: &[HighlightedRangeLine],
7475 _bounds: Bounds<Pixels>,
7476 cx: &mut WindowContext,
7477 ) {
7478 if lines.is_empty() {
7479 return;
7480 }
7481
7482 let first_line = lines.first().unwrap();
7483 let last_line = lines.last().unwrap();
7484
7485 let first_top_left = point(first_line.start_x, start_y);
7486 let first_top_right = point(first_line.end_x, start_y);
7487
7488 let curve_height = point(Pixels::ZERO, self.corner_radius);
7489 let curve_width = |start_x: Pixels, end_x: Pixels| {
7490 let max = (end_x - start_x) / 2.;
7491 let width = if max < self.corner_radius {
7492 max
7493 } else {
7494 self.corner_radius
7495 };
7496
7497 point(width, Pixels::ZERO)
7498 };
7499
7500 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
7501 let mut path = gpui::Path::new(first_top_right - top_curve_width);
7502 path.curve_to(first_top_right + curve_height, first_top_right);
7503
7504 let mut iter = lines.iter().enumerate().peekable();
7505 while let Some((ix, line)) = iter.next() {
7506 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
7507
7508 if let Some((_, next_line)) = iter.peek() {
7509 let next_top_right = point(next_line.end_x, bottom_right.y);
7510
7511 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
7512 Ordering::Equal => {
7513 path.line_to(bottom_right);
7514 }
7515 Ordering::Less => {
7516 let curve_width = curve_width(next_top_right.x, bottom_right.x);
7517 path.line_to(bottom_right - curve_height);
7518 if self.corner_radius > Pixels::ZERO {
7519 path.curve_to(bottom_right - curve_width, bottom_right);
7520 }
7521 path.line_to(next_top_right + curve_width);
7522 if self.corner_radius > Pixels::ZERO {
7523 path.curve_to(next_top_right + curve_height, next_top_right);
7524 }
7525 }
7526 Ordering::Greater => {
7527 let curve_width = curve_width(bottom_right.x, next_top_right.x);
7528 path.line_to(bottom_right - curve_height);
7529 if self.corner_radius > Pixels::ZERO {
7530 path.curve_to(bottom_right + curve_width, bottom_right);
7531 }
7532 path.line_to(next_top_right - curve_width);
7533 if self.corner_radius > Pixels::ZERO {
7534 path.curve_to(next_top_right + curve_height, next_top_right);
7535 }
7536 }
7537 }
7538 } else {
7539 let curve_width = curve_width(line.start_x, line.end_x);
7540 path.line_to(bottom_right - curve_height);
7541 if self.corner_radius > Pixels::ZERO {
7542 path.curve_to(bottom_right - curve_width, bottom_right);
7543 }
7544
7545 let bottom_left = point(line.start_x, bottom_right.y);
7546 path.line_to(bottom_left + curve_width);
7547 if self.corner_radius > Pixels::ZERO {
7548 path.curve_to(bottom_left - curve_height, bottom_left);
7549 }
7550 }
7551 }
7552
7553 if first_line.start_x > last_line.start_x {
7554 let curve_width = curve_width(last_line.start_x, first_line.start_x);
7555 let second_top_left = point(last_line.start_x, start_y + self.line_height);
7556 path.line_to(second_top_left + curve_height);
7557 if self.corner_radius > Pixels::ZERO {
7558 path.curve_to(second_top_left + curve_width, second_top_left);
7559 }
7560 let first_bottom_left = point(first_line.start_x, second_top_left.y);
7561 path.line_to(first_bottom_left - curve_width);
7562 if self.corner_radius > Pixels::ZERO {
7563 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
7564 }
7565 }
7566
7567 path.line_to(first_top_left + curve_height);
7568 if self.corner_radius > Pixels::ZERO {
7569 path.curve_to(first_top_left + top_curve_width, first_top_left);
7570 }
7571 path.line_to(first_top_right - top_curve_width);
7572
7573 cx.paint_path(path, self.color);
7574 }
7575}
7576
7577pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
7578 (delta.pow(1.5) / 100.0).into()
7579}
7580
7581fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
7582 (delta.pow(1.2) / 300.0).into()
7583}
7584
7585pub fn register_action<T: Action>(
7586 view: &View<Editor>,
7587 cx: &mut WindowContext,
7588 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
7589) {
7590 let view = view.clone();
7591 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
7592 let action = action.downcast_ref().unwrap();
7593 if phase == DispatchPhase::Bubble {
7594 view.update(cx, |editor, cx| {
7595 listener(editor, action, cx);
7596 })
7597 }
7598 })
7599}
7600
7601fn compute_auto_height_layout(
7602 editor: &mut Editor,
7603 max_lines: usize,
7604 max_line_number_width: Pixels,
7605 known_dimensions: Size<Option<Pixels>>,
7606 available_width: AvailableSpace,
7607 cx: &mut ViewContext<Editor>,
7608) -> Option<Size<Pixels>> {
7609 let width = known_dimensions.width.or({
7610 if let AvailableSpace::Definite(available_width) = available_width {
7611 Some(available_width)
7612 } else {
7613 None
7614 }
7615 })?;
7616 if let Some(height) = known_dimensions.height {
7617 return Some(size(width, height));
7618 }
7619
7620 let style = editor.style.as_ref().unwrap();
7621 let font_id = cx.text_system().resolve_font(&style.text.font());
7622 let font_size = style.text.font_size.to_pixels(cx.rem_size());
7623 let line_height = style.text.line_height_in_pixels(cx.rem_size());
7624 let em_width = cx
7625 .text_system()
7626 .typographic_bounds(font_id, font_size, 'm')
7627 .unwrap()
7628 .size
7629 .width;
7630 let em_advance = cx
7631 .text_system()
7632 .advance(font_id, font_size, 'm')
7633 .unwrap()
7634 .width;
7635
7636 let mut snapshot = editor.snapshot(cx);
7637 let gutter_dimensions = snapshot.gutter_dimensions(
7638 font_id,
7639 font_size,
7640 em_width,
7641 em_advance,
7642 max_line_number_width,
7643 cx,
7644 );
7645
7646 editor.gutter_dimensions = gutter_dimensions;
7647 let text_width = width - gutter_dimensions.width;
7648 let overscroll = size(em_width, px(0.));
7649
7650 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
7651 if editor.set_wrap_width(Some(editor_width), cx) {
7652 snapshot = editor.snapshot(cx);
7653 }
7654
7655 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
7656 let height = scroll_height
7657 .max(line_height)
7658 .min(line_height * max_lines as f32);
7659
7660 Some(size(width, height))
7661}
7662
7663#[cfg(test)]
7664mod tests {
7665 use super::*;
7666 use crate::{
7667 display_map::{BlockPlacement, BlockProperties},
7668 editor_tests::{init_test, update_test_language_settings},
7669 Editor, MultiBuffer,
7670 };
7671 use gpui::{TestAppContext, VisualTestContext};
7672 use language::language_settings;
7673 use log::info;
7674 use similar::DiffableStr;
7675 use std::num::NonZeroU32;
7676 use util::test::sample_text;
7677
7678 #[gpui::test]
7679 fn test_shape_line_numbers(cx: &mut TestAppContext) {
7680 init_test(cx, |_| {});
7681 let window = cx.add_window(|cx| {
7682 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
7683 Editor::new(EditorMode::Full, buffer, None, true, cx)
7684 });
7685
7686 let editor = window.root(cx).unwrap();
7687 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7688 let line_height = window
7689 .update(cx, |_, cx| style.text.line_height_in_pixels(cx.rem_size()))
7690 .unwrap();
7691 let element = EditorElement::new(&editor, style);
7692 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
7693
7694 let layouts = cx
7695 .update_window(*window, |_, cx| {
7696 element.layout_line_numbers(
7697 None,
7698 GutterDimensions {
7699 left_padding: Pixels::ZERO,
7700 right_padding: Pixels::ZERO,
7701 width: px(30.0),
7702 margin: Pixels::ZERO,
7703 git_blame_entries_width: None,
7704 },
7705 line_height,
7706 gpui::Point::default(),
7707 DisplayRow(0)..DisplayRow(6),
7708 (0..6).map(MultiBufferRow).map(Some),
7709 Some(DisplayPoint::new(DisplayRow(0), 0)),
7710 &snapshot,
7711 cx,
7712 )
7713 })
7714 .unwrap();
7715 assert_eq!(layouts.len(), 6);
7716
7717 let relative_rows = window
7718 .update(cx, |editor, cx| {
7719 let snapshot = editor.snapshot(cx);
7720 element.calculate_relative_line_numbers(
7721 &snapshot,
7722 &(DisplayRow(0)..DisplayRow(6)),
7723 Some(DisplayRow(3)),
7724 )
7725 })
7726 .unwrap();
7727 assert_eq!(relative_rows[&DisplayRow(0)], 3);
7728 assert_eq!(relative_rows[&DisplayRow(1)], 2);
7729 assert_eq!(relative_rows[&DisplayRow(2)], 1);
7730 // current line has no relative number
7731 assert_eq!(relative_rows[&DisplayRow(4)], 1);
7732 assert_eq!(relative_rows[&DisplayRow(5)], 2);
7733
7734 // works if cursor is before screen
7735 let relative_rows = window
7736 .update(cx, |editor, cx| {
7737 let snapshot = editor.snapshot(cx);
7738 element.calculate_relative_line_numbers(
7739 &snapshot,
7740 &(DisplayRow(3)..DisplayRow(6)),
7741 Some(DisplayRow(1)),
7742 )
7743 })
7744 .unwrap();
7745 assert_eq!(relative_rows.len(), 3);
7746 assert_eq!(relative_rows[&DisplayRow(3)], 2);
7747 assert_eq!(relative_rows[&DisplayRow(4)], 3);
7748 assert_eq!(relative_rows[&DisplayRow(5)], 4);
7749
7750 // works if cursor is after screen
7751 let relative_rows = window
7752 .update(cx, |editor, cx| {
7753 let snapshot = editor.snapshot(cx);
7754 element.calculate_relative_line_numbers(
7755 &snapshot,
7756 &(DisplayRow(0)..DisplayRow(3)),
7757 Some(DisplayRow(6)),
7758 )
7759 })
7760 .unwrap();
7761 assert_eq!(relative_rows.len(), 3);
7762 assert_eq!(relative_rows[&DisplayRow(0)], 5);
7763 assert_eq!(relative_rows[&DisplayRow(1)], 4);
7764 assert_eq!(relative_rows[&DisplayRow(2)], 3);
7765 }
7766
7767 #[gpui::test]
7768 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
7769 init_test(cx, |_| {});
7770
7771 let window = cx.add_window(|cx| {
7772 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
7773 Editor::new(EditorMode::Full, buffer, None, true, cx)
7774 });
7775 let cx = &mut VisualTestContext::from_window(*window, cx);
7776 let editor = window.root(cx).unwrap();
7777 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7778
7779 window
7780 .update(cx, |editor, cx| {
7781 editor.cursor_shape = CursorShape::Block;
7782 editor.change_selections(None, cx, |s| {
7783 s.select_ranges([
7784 Point::new(0, 0)..Point::new(1, 0),
7785 Point::new(3, 2)..Point::new(3, 3),
7786 Point::new(5, 6)..Point::new(6, 0),
7787 ]);
7788 });
7789 })
7790 .unwrap();
7791
7792 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7793 EditorElement::new(&editor, style)
7794 });
7795
7796 assert_eq!(state.selections.len(), 1);
7797 let local_selections = &state.selections[0].1;
7798 assert_eq!(local_selections.len(), 3);
7799 // moves cursor back one line
7800 assert_eq!(
7801 local_selections[0].head,
7802 DisplayPoint::new(DisplayRow(0), 6)
7803 );
7804 assert_eq!(
7805 local_selections[0].range,
7806 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
7807 );
7808
7809 // moves cursor back one column
7810 assert_eq!(
7811 local_selections[1].range,
7812 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
7813 );
7814 assert_eq!(
7815 local_selections[1].head,
7816 DisplayPoint::new(DisplayRow(3), 2)
7817 );
7818
7819 // leaves cursor on the max point
7820 assert_eq!(
7821 local_selections[2].range,
7822 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
7823 );
7824 assert_eq!(
7825 local_selections[2].head,
7826 DisplayPoint::new(DisplayRow(6), 0)
7827 );
7828
7829 // active lines does not include 1 (even though the range of the selection does)
7830 assert_eq!(
7831 state.active_rows.keys().cloned().collect::<Vec<_>>(),
7832 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
7833 );
7834
7835 // multi-buffer support
7836 // in DisplayPoint coordinates, this is what we're dealing with:
7837 // 0: [[file
7838 // 1: header
7839 // 2: section]]
7840 // 3: aaaaaa
7841 // 4: bbbbbb
7842 // 5: cccccc
7843 // 6:
7844 // 7: [[footer]]
7845 // 8: [[header]]
7846 // 9: ffffff
7847 // 10: gggggg
7848 // 11: hhhhhh
7849 // 12:
7850 // 13: [[footer]]
7851 // 14: [[file
7852 // 15: header
7853 // 16: section]]
7854 // 17: bbbbbb
7855 // 18: cccccc
7856 // 19: dddddd
7857 // 20: [[footer]]
7858 let window = cx.add_window(|cx| {
7859 let buffer = MultiBuffer::build_multi(
7860 [
7861 (
7862 &(sample_text(8, 6, 'a') + "\n"),
7863 vec![
7864 Point::new(0, 0)..Point::new(3, 0),
7865 Point::new(4, 0)..Point::new(7, 0),
7866 ],
7867 ),
7868 (
7869 &(sample_text(8, 6, 'a') + "\n"),
7870 vec![Point::new(1, 0)..Point::new(3, 0)],
7871 ),
7872 ],
7873 cx,
7874 );
7875 Editor::new(EditorMode::Full, buffer, None, true, cx)
7876 });
7877 let editor = window.root(cx).unwrap();
7878 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7879 let _state = window.update(cx, |editor, cx| {
7880 editor.cursor_shape = CursorShape::Block;
7881 editor.change_selections(None, cx, |s| {
7882 s.select_display_ranges([
7883 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
7884 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
7885 ]);
7886 });
7887 });
7888
7889 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7890 EditorElement::new(&editor, style)
7891 });
7892 assert_eq!(state.selections.len(), 1);
7893 let local_selections = &state.selections[0].1;
7894 assert_eq!(local_selections.len(), 2);
7895
7896 // moves cursor on excerpt boundary back a line
7897 // and doesn't allow selection to bleed through
7898 assert_eq!(
7899 local_selections[0].range,
7900 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
7901 );
7902 assert_eq!(
7903 local_selections[0].head,
7904 DisplayPoint::new(DisplayRow(6), 0)
7905 );
7906 // moves cursor on buffer boundary back two lines
7907 // and doesn't allow selection to bleed through
7908 assert_eq!(
7909 local_selections[1].range,
7910 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
7911 );
7912 assert_eq!(
7913 local_selections[1].head,
7914 DisplayPoint::new(DisplayRow(12), 0)
7915 );
7916 }
7917
7918 #[gpui::test]
7919 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
7920 init_test(cx, |_| {});
7921
7922 let window = cx.add_window(|cx| {
7923 let buffer = MultiBuffer::build_simple("", cx);
7924 Editor::new(EditorMode::Full, buffer, None, true, cx)
7925 });
7926 let cx = &mut VisualTestContext::from_window(*window, cx);
7927 let editor = window.root(cx).unwrap();
7928 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7929 window
7930 .update(cx, |editor, cx| {
7931 editor.set_placeholder_text("hello", cx);
7932 editor.insert_blocks(
7933 [BlockProperties {
7934 style: BlockStyle::Fixed,
7935 placement: BlockPlacement::Above(Anchor::min()),
7936 height: 3,
7937 render: Arc::new(|cx| div().h(3. * cx.line_height()).into_any()),
7938 priority: 0,
7939 }],
7940 None,
7941 cx,
7942 );
7943
7944 // Blur the editor so that it displays placeholder text.
7945 cx.blur();
7946 })
7947 .unwrap();
7948
7949 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7950 EditorElement::new(&editor, style)
7951 });
7952 assert_eq!(state.position_map.line_layouts.len(), 4);
7953 assert_eq!(state.line_numbers.len(), 1);
7954 assert_eq!(
7955 state
7956 .line_numbers
7957 .get(&MultiBufferRow(0))
7958 .and_then(|line_number| line_number.shaped_line.text.as_str()),
7959 Some("1")
7960 );
7961 }
7962
7963 #[gpui::test]
7964 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
7965 const TAB_SIZE: u32 = 4;
7966
7967 let input_text = "\t \t|\t| a b";
7968 let expected_invisibles = vec![
7969 Invisible::Tab {
7970 line_start_offset: 0,
7971 line_end_offset: TAB_SIZE as usize,
7972 },
7973 Invisible::Whitespace {
7974 line_offset: TAB_SIZE as usize,
7975 },
7976 Invisible::Tab {
7977 line_start_offset: TAB_SIZE as usize + 1,
7978 line_end_offset: TAB_SIZE as usize * 2,
7979 },
7980 Invisible::Tab {
7981 line_start_offset: TAB_SIZE as usize * 2 + 1,
7982 line_end_offset: TAB_SIZE as usize * 3,
7983 },
7984 Invisible::Whitespace {
7985 line_offset: TAB_SIZE as usize * 3 + 1,
7986 },
7987 Invisible::Whitespace {
7988 line_offset: TAB_SIZE as usize * 3 + 3,
7989 },
7990 ];
7991 assert_eq!(
7992 expected_invisibles.len(),
7993 input_text
7994 .chars()
7995 .filter(|initial_char| initial_char.is_whitespace())
7996 .count(),
7997 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
7998 );
7999
8000 for show_line_numbers in [true, false] {
8001 init_test(cx, |s| {
8002 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8003 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8004 });
8005
8006 let actual_invisibles = collect_invisibles_from_new_editor(
8007 cx,
8008 EditorMode::Full,
8009 input_text,
8010 px(500.0),
8011 show_line_numbers,
8012 );
8013
8014 assert_eq!(expected_invisibles, actual_invisibles);
8015 }
8016 }
8017
8018 #[gpui::test]
8019 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8020 init_test(cx, |s| {
8021 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8022 s.defaults.tab_size = NonZeroU32::new(4);
8023 });
8024
8025 for editor_mode_without_invisibles in [
8026 EditorMode::SingleLine { auto_width: false },
8027 EditorMode::AutoHeight { max_lines: 100 },
8028 ] {
8029 for show_line_numbers in [true, false] {
8030 let invisibles = collect_invisibles_from_new_editor(
8031 cx,
8032 editor_mode_without_invisibles,
8033 "\t\t\t| | a b",
8034 px(500.0),
8035 show_line_numbers,
8036 );
8037 assert!(invisibles.is_empty(),
8038 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8039 }
8040 }
8041 }
8042
8043 #[gpui::test]
8044 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8045 let tab_size = 4;
8046 let input_text = "a\tbcd ".repeat(9);
8047 let repeated_invisibles = [
8048 Invisible::Tab {
8049 line_start_offset: 1,
8050 line_end_offset: tab_size as usize,
8051 },
8052 Invisible::Whitespace {
8053 line_offset: tab_size as usize + 3,
8054 },
8055 Invisible::Whitespace {
8056 line_offset: tab_size as usize + 4,
8057 },
8058 Invisible::Whitespace {
8059 line_offset: tab_size as usize + 5,
8060 },
8061 Invisible::Whitespace {
8062 line_offset: tab_size as usize + 6,
8063 },
8064 Invisible::Whitespace {
8065 line_offset: tab_size as usize + 7,
8066 },
8067 ];
8068 let expected_invisibles = std::iter::once(repeated_invisibles)
8069 .cycle()
8070 .take(9)
8071 .flatten()
8072 .collect::<Vec<_>>();
8073 assert_eq!(
8074 expected_invisibles.len(),
8075 input_text
8076 .chars()
8077 .filter(|initial_char| initial_char.is_whitespace())
8078 .count(),
8079 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8080 );
8081 info!("Expected invisibles: {expected_invisibles:?}");
8082
8083 init_test(cx, |_| {});
8084
8085 // Put the same string with repeating whitespace pattern into editors of various size,
8086 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8087 let resize_step = 10.0;
8088 let mut editor_width = 200.0;
8089 while editor_width <= 1000.0 {
8090 for show_line_numbers in [true, false] {
8091 update_test_language_settings(cx, |s| {
8092 s.defaults.tab_size = NonZeroU32::new(tab_size);
8093 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8094 s.defaults.preferred_line_length = Some(editor_width as u32);
8095 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8096 });
8097
8098 let actual_invisibles = collect_invisibles_from_new_editor(
8099 cx,
8100 EditorMode::Full,
8101 &input_text,
8102 px(editor_width),
8103 show_line_numbers,
8104 );
8105
8106 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8107 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8108 let mut i = 0;
8109 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8110 i = actual_index;
8111 match expected_invisibles.get(i) {
8112 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8113 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8114 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8115 _ => {
8116 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8117 }
8118 },
8119 None => {
8120 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8121 }
8122 }
8123 }
8124 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8125 assert!(
8126 missing_expected_invisibles.is_empty(),
8127 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8128 );
8129
8130 editor_width += resize_step;
8131 }
8132 }
8133 }
8134
8135 fn collect_invisibles_from_new_editor(
8136 cx: &mut TestAppContext,
8137 editor_mode: EditorMode,
8138 input_text: &str,
8139 editor_width: Pixels,
8140 show_line_numbers: bool,
8141 ) -> Vec<Invisible> {
8142 info!(
8143 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8144 editor_width.0
8145 );
8146 let window = cx.add_window(|cx| {
8147 let buffer = MultiBuffer::build_simple(input_text, cx);
8148 Editor::new(editor_mode, buffer, None, true, cx)
8149 });
8150 let cx = &mut VisualTestContext::from_window(*window, cx);
8151 let editor = window.root(cx).unwrap();
8152
8153 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8154 window
8155 .update(cx, |editor, cx| {
8156 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8157 editor.set_wrap_width(Some(editor_width), cx);
8158 editor.set_show_line_numbers(show_line_numbers, cx);
8159 })
8160 .unwrap();
8161 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
8162 EditorElement::new(&editor, style)
8163 });
8164 state
8165 .position_map
8166 .line_layouts
8167 .iter()
8168 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8169 .cloned()
8170 .collect()
8171 }
8172}