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