1use crate::{
2 ActiveDiagnostic, BlockId, CURSORS_VISIBLE_FOR, ChunkRendererContext, ChunkReplacement,
3 CodeActionSource, ColumnarMode, ConflictsOurs, ConflictsOursMarker, ConflictsOuter,
4 ConflictsTheirs, ConflictsTheirsMarker, ContextMenuPlacement, CursorShape, CustomBlockId,
5 DisplayDiffHunk, DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite,
6 EditDisplayMode, EditPrediction, Editor, EditorMode, EditorSettings, EditorSnapshot,
7 EditorStyle, FILE_HEADER_HEIGHT, FocusedBlock, GutterDimensions, HalfPageDown, HalfPageUp,
8 HandleInput, HoveredCursor, InlayHintRefreshReason, JumpData, LineDown, LineHighlight, LineUp,
9 MAX_LINE_LEN, MINIMAP_FONT_SIZE, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts,
10 OpenExcerptsSplit, PageDown, PageUp, PhantomBreakpointIndicator, Point, RowExt, RowRangeExt,
11 SelectPhase, SelectedTextHighlight, Selection, SelectionDragState, SelectionEffects,
12 SizingBehavior, SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold, ToggleFoldAll,
13 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
14 display_map::{
15 Block, BlockContext, BlockStyle, ChunkRendererId, DisplaySnapshot, EditorMargins,
16 HighlightKey, HighlightedChunk, ToDisplayPoint,
17 },
18 editor_settings::{
19 CurrentLineHighlight, DocumentColorsRenderMode, DoubleClickInMultibuffer, Minimap,
20 MinimapThumb, MinimapThumbBorder, ScrollBeyondLastLine, ScrollbarAxes,
21 ScrollbarDiagnostics, ShowMinimap,
22 },
23 git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer},
24 hover_popover::{
25 self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
26 POPOVER_RIGHT_OFFSET, hover_at,
27 },
28 inlay_hint_settings,
29 items::BufferSearchHighlights,
30 mouse_context_menu::{self, MenuPosition},
31 scroll::{
32 ActiveScrollbarState, Autoscroll, ScrollOffset, ScrollPixelOffset, ScrollbarThumbState,
33 scroll_amount::ScrollAmount,
34 },
35};
36use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
37use collections::{BTreeMap, HashMap};
38use file_icons::FileIcons;
39use git::{
40 Oid,
41 blame::{BlameEntry, ParsedCommitMessage},
42 status::FileStatus,
43};
44use gpui::{
45 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
46 Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle,
47 DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId,
48 GlobalElementId, Hitbox, HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero,
49 KeybindingKeystroke, Length, Modifiers, ModifiersChangedEvent, MouseButton, MouseClickEvent,
50 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
51 ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement,
52 Style, Styled, TextRun, TextStyleRefinement, WeakEntity, Window, anchored, deferred, div, fill,
53 linear_color_stop, linear_gradient, outline, point, px, quad, relative, size, solid_background,
54 transparent_black,
55};
56use itertools::Itertools;
57use language::{IndentGuideSettings, language_settings::ShowWhitespaceSetting};
58use markdown::Markdown;
59use multi_buffer::{
60 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
61 MultiBufferRow, RowInfo,
62};
63
64use project::{
65 Entry, ProjectPath,
66 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
67 project_settings::ProjectSettings,
68};
69use settings::{
70 GitGutterSetting, GitHunkStyleSetting, IndentGuideBackgroundColoring, IndentGuideColoring,
71 Settings,
72};
73use smallvec::{SmallVec, smallvec};
74use std::{
75 any::TypeId,
76 borrow::Cow,
77 cmp::{self, Ordering},
78 fmt::{self, Write},
79 iter, mem,
80 ops::{Deref, Range},
81 path::{self, Path},
82 rc::Rc,
83 sync::Arc,
84 time::{Duration, Instant},
85};
86use sum_tree::Bias;
87use text::{BufferId, SelectionGoal};
88use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
89use ui::utils::ensure_minimum_contrast;
90use ui::{
91 ButtonLike, ContextMenu, Indicator, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*,
92 right_click_menu, scrollbars::ShowScrollbar, text_for_keystroke,
93};
94use unicode_segmentation::UnicodeSegmentation;
95use util::post_inc;
96use util::{RangeExt, ResultExt, debug_panic};
97use workspace::{
98 CollaboratorId, ItemSettings, OpenInTerminal, OpenTerminal, RevealInProjectPanel, Workspace,
99 item::{Item, ItemBufferKind},
100 notifications::NotifyTaskExt,
101};
102
103/// Determines what kinds of highlights should be applied to a lines background.
104#[derive(Clone, Copy, Default)]
105struct LineHighlightSpec {
106 selection: bool,
107 breakpoint: bool,
108 _active_stack_frame: bool,
109}
110
111#[derive(Debug)]
112struct SelectionLayout {
113 head: DisplayPoint,
114 cursor_shape: CursorShape,
115 is_newest: bool,
116 is_local: bool,
117 range: Range<DisplayPoint>,
118 active_rows: Range<DisplayRow>,
119 user_name: Option<SharedString>,
120}
121
122struct InlineBlameLayout {
123 element: AnyElement,
124 bounds: Bounds<Pixels>,
125 buffer_id: BufferId,
126 entry: BlameEntry,
127}
128
129impl SelectionLayout {
130 fn new<T: ToPoint + ToDisplayPoint + Clone>(
131 selection: Selection<T>,
132 line_mode: bool,
133 cursor_shape: CursorShape,
134 map: &DisplaySnapshot,
135 is_newest: bool,
136 is_local: bool,
137 user_name: Option<SharedString>,
138 ) -> Self {
139 let point_selection = selection.map(|p| p.to_point(map.buffer_snapshot()));
140 let display_selection = point_selection.map(|p| p.to_display_point(map));
141 let mut range = display_selection.range();
142 let mut head = display_selection.head();
143 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
144 ..map.next_line_boundary(point_selection.end).1.row();
145
146 // vim visual line mode
147 if line_mode {
148 let point_range = map.expand_to_line(point_selection.range());
149 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
150 }
151
152 // any vim visual mode (including line mode)
153 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
154 && !range.is_empty()
155 && !selection.reversed
156 {
157 if head.column() > 0 {
158 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
159 } else if head.row().0 > 0 && head != map.max_point() {
160 head = map.clip_point(
161 DisplayPoint::new(
162 head.row().previous_row(),
163 map.line_len(head.row().previous_row()),
164 ),
165 Bias::Left,
166 );
167 // updating range.end is a no-op unless you're cursor is
168 // on the newline containing a multi-buffer divider
169 // in which case the clip_point may have moved the head up
170 // an additional row.
171 range.end = DisplayPoint::new(head.row().next_row(), 0);
172 active_rows.end = head.row();
173 }
174 }
175
176 Self {
177 head,
178 cursor_shape,
179 is_newest,
180 is_local,
181 range,
182 active_rows,
183 user_name,
184 }
185 }
186}
187
188pub struct EditorElement {
189 editor: Entity<Editor>,
190 style: EditorStyle,
191}
192
193type DisplayRowDelta = u32;
194
195impl EditorElement {
196 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
197
198 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
199 Self {
200 editor: editor.clone(),
201 style,
202 }
203 }
204
205 fn register_actions(&self, window: &mut Window, cx: &mut App) {
206 let editor = &self.editor;
207 editor.update(cx, |editor, cx| {
208 for action in editor.editor_actions.borrow().values() {
209 (action)(editor, window, cx)
210 }
211 });
212
213 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
214 crate::clangd_ext::apply_related_actions(editor, window, cx);
215
216 register_action(editor, window, Editor::open_context_menu);
217 register_action(editor, window, Editor::move_left);
218 register_action(editor, window, Editor::move_right);
219 register_action(editor, window, Editor::move_down);
220 register_action(editor, window, Editor::move_down_by_lines);
221 register_action(editor, window, Editor::select_down_by_lines);
222 register_action(editor, window, Editor::move_up);
223 register_action(editor, window, Editor::move_up_by_lines);
224 register_action(editor, window, Editor::select_up_by_lines);
225 register_action(editor, window, Editor::select_page_down);
226 register_action(editor, window, Editor::select_page_up);
227 register_action(editor, window, Editor::cancel);
228 register_action(editor, window, Editor::newline);
229 register_action(editor, window, Editor::newline_above);
230 register_action(editor, window, Editor::newline_below);
231 register_action(editor, window, Editor::backspace);
232 register_action(editor, window, Editor::blame_hover);
233 register_action(editor, window, Editor::delete);
234 register_action(editor, window, Editor::tab);
235 register_action(editor, window, Editor::next_snippet_tabstop);
236 register_action(editor, window, Editor::previous_snippet_tabstop);
237 register_action(editor, window, Editor::backtab);
238 register_action(editor, window, Editor::indent);
239 register_action(editor, window, Editor::outdent);
240 register_action(editor, window, Editor::autoindent);
241 register_action(editor, window, Editor::delete_line);
242 register_action(editor, window, Editor::join_lines);
243 register_action(editor, window, Editor::sort_lines_by_length);
244 register_action(editor, window, Editor::sort_lines_case_sensitive);
245 register_action(editor, window, Editor::sort_lines_case_insensitive);
246 register_action(editor, window, Editor::reverse_lines);
247 register_action(editor, window, Editor::shuffle_lines);
248 register_action(editor, window, Editor::convert_indentation_to_spaces);
249 register_action(editor, window, Editor::convert_indentation_to_tabs);
250 register_action(editor, window, Editor::convert_to_upper_case);
251 register_action(editor, window, Editor::convert_to_lower_case);
252 register_action(editor, window, Editor::convert_to_title_case);
253 register_action(editor, window, Editor::convert_to_snake_case);
254 register_action(editor, window, Editor::convert_to_kebab_case);
255 register_action(editor, window, Editor::convert_to_upper_camel_case);
256 register_action(editor, window, Editor::convert_to_lower_camel_case);
257 register_action(editor, window, Editor::convert_to_opposite_case);
258 register_action(editor, window, Editor::convert_to_sentence_case);
259 register_action(editor, window, Editor::toggle_case);
260 register_action(editor, window, Editor::convert_to_rot13);
261 register_action(editor, window, Editor::convert_to_rot47);
262 register_action(editor, window, Editor::delete_to_previous_word_start);
263 register_action(editor, window, Editor::delete_to_previous_subword_start);
264 register_action(editor, window, Editor::delete_to_next_word_end);
265 register_action(editor, window, Editor::delete_to_next_subword_end);
266 register_action(editor, window, Editor::delete_to_beginning_of_line);
267 register_action(editor, window, Editor::delete_to_end_of_line);
268 register_action(editor, window, Editor::cut_to_end_of_line);
269 register_action(editor, window, Editor::duplicate_line_up);
270 register_action(editor, window, Editor::duplicate_line_down);
271 register_action(editor, window, Editor::duplicate_selection);
272 register_action(editor, window, Editor::move_line_up);
273 register_action(editor, window, Editor::move_line_down);
274 register_action(editor, window, Editor::transpose);
275 register_action(editor, window, Editor::rewrap);
276 register_action(editor, window, Editor::cut);
277 register_action(editor, window, Editor::kill_ring_cut);
278 register_action(editor, window, Editor::kill_ring_yank);
279 register_action(editor, window, Editor::copy);
280 register_action(editor, window, Editor::copy_and_trim);
281 register_action(editor, window, Editor::diff_clipboard_with_selection);
282 register_action(editor, window, Editor::paste);
283 register_action(editor, window, Editor::undo);
284 register_action(editor, window, Editor::redo);
285 register_action(editor, window, Editor::move_page_up);
286 register_action(editor, window, Editor::move_page_down);
287 register_action(editor, window, Editor::next_screen);
288 register_action(editor, window, Editor::scroll_cursor_top);
289 register_action(editor, window, Editor::scroll_cursor_center);
290 register_action(editor, window, Editor::scroll_cursor_bottom);
291 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
292 register_action(editor, window, |editor, _: &LineDown, window, cx| {
293 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
294 });
295 register_action(editor, window, |editor, _: &LineUp, window, cx| {
296 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
297 });
298 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
299 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
300 });
301 register_action(
302 editor,
303 window,
304 |editor, HandleInput(text): &HandleInput, window, cx| {
305 if text.is_empty() {
306 return;
307 }
308 editor.handle_input(text, window, cx);
309 },
310 );
311 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
312 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
313 });
314 register_action(editor, window, |editor, _: &PageDown, window, cx| {
315 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
316 });
317 register_action(editor, window, |editor, _: &PageUp, window, cx| {
318 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
319 });
320 register_action(editor, window, Editor::move_to_previous_word_start);
321 register_action(editor, window, Editor::move_to_previous_subword_start);
322 register_action(editor, window, Editor::move_to_next_word_end);
323 register_action(editor, window, Editor::move_to_next_subword_end);
324 register_action(editor, window, Editor::move_to_beginning_of_line);
325 register_action(editor, window, Editor::move_to_end_of_line);
326 register_action(editor, window, Editor::move_to_start_of_paragraph);
327 register_action(editor, window, Editor::move_to_end_of_paragraph);
328 register_action(editor, window, Editor::move_to_beginning);
329 register_action(editor, window, Editor::move_to_end);
330 register_action(editor, window, Editor::move_to_start_of_excerpt);
331 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
332 register_action(editor, window, Editor::move_to_end_of_excerpt);
333 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
334 register_action(editor, window, Editor::select_up);
335 register_action(editor, window, Editor::select_down);
336 register_action(editor, window, Editor::select_left);
337 register_action(editor, window, Editor::select_right);
338 register_action(editor, window, Editor::select_to_previous_word_start);
339 register_action(editor, window, Editor::select_to_previous_subword_start);
340 register_action(editor, window, Editor::select_to_next_word_end);
341 register_action(editor, window, Editor::select_to_next_subword_end);
342 register_action(editor, window, Editor::select_to_beginning_of_line);
343 register_action(editor, window, Editor::select_to_end_of_line);
344 register_action(editor, window, Editor::select_to_start_of_paragraph);
345 register_action(editor, window, Editor::select_to_end_of_paragraph);
346 register_action(editor, window, Editor::select_to_start_of_excerpt);
347 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
348 register_action(editor, window, Editor::select_to_end_of_excerpt);
349 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
350 register_action(editor, window, Editor::select_to_beginning);
351 register_action(editor, window, Editor::select_to_end);
352 register_action(editor, window, Editor::select_all);
353 register_action(editor, window, |editor, action, window, cx| {
354 editor.select_all_matches(action, window, cx).log_err();
355 });
356 register_action(editor, window, Editor::select_line);
357 register_action(editor, window, Editor::split_selection_into_lines);
358 register_action(editor, window, Editor::add_selection_above);
359 register_action(editor, window, Editor::add_selection_below);
360 register_action(editor, window, |editor, action, window, cx| {
361 editor.select_next(action, window, cx).log_err();
362 });
363 register_action(editor, window, |editor, action, window, cx| {
364 editor.select_previous(action, window, cx).log_err();
365 });
366 register_action(editor, window, |editor, action, window, cx| {
367 editor.find_next_match(action, window, cx).log_err();
368 });
369 register_action(editor, window, |editor, action, window, cx| {
370 editor.find_previous_match(action, window, cx).log_err();
371 });
372 register_action(editor, window, Editor::toggle_comments);
373 register_action(editor, window, Editor::select_larger_syntax_node);
374 register_action(editor, window, Editor::select_smaller_syntax_node);
375 register_action(editor, window, Editor::select_next_syntax_node);
376 register_action(editor, window, Editor::select_prev_syntax_node);
377 register_action(editor, window, Editor::unwrap_syntax_node);
378 register_action(editor, window, Editor::select_enclosing_symbol);
379 register_action(editor, window, Editor::move_to_enclosing_bracket);
380 register_action(editor, window, Editor::undo_selection);
381 register_action(editor, window, Editor::redo_selection);
382 if editor.read(cx).buffer_kind(cx) == ItemBufferKind::Multibuffer {
383 register_action(editor, window, Editor::expand_excerpts);
384 register_action(editor, window, Editor::expand_excerpts_up);
385 register_action(editor, window, Editor::expand_excerpts_down);
386 }
387 register_action(editor, window, Editor::go_to_diagnostic);
388 register_action(editor, window, Editor::go_to_prev_diagnostic);
389 register_action(editor, window, Editor::go_to_next_hunk);
390 register_action(editor, window, Editor::go_to_prev_hunk);
391 register_action(editor, window, Editor::go_to_next_document_highlight);
392 register_action(editor, window, Editor::go_to_prev_document_highlight);
393 register_action(editor, window, |editor, action, window, cx| {
394 editor
395 .go_to_definition(action, window, cx)
396 .detach_and_log_err(cx);
397 });
398 register_action(editor, window, |editor, action, window, cx| {
399 editor
400 .go_to_definition_split(action, window, cx)
401 .detach_and_log_err(cx);
402 });
403 register_action(editor, window, |editor, action, window, cx| {
404 editor
405 .go_to_declaration(action, window, cx)
406 .detach_and_log_err(cx);
407 });
408 register_action(editor, window, |editor, action, window, cx| {
409 editor
410 .go_to_declaration_split(action, window, cx)
411 .detach_and_log_err(cx);
412 });
413 register_action(editor, window, |editor, action, window, cx| {
414 editor
415 .go_to_implementation(action, window, cx)
416 .detach_and_log_err(cx);
417 });
418 register_action(editor, window, |editor, action, window, cx| {
419 editor
420 .go_to_implementation_split(action, window, cx)
421 .detach_and_log_err(cx);
422 });
423 register_action(editor, window, |editor, action, window, cx| {
424 editor
425 .go_to_type_definition(action, window, cx)
426 .detach_and_log_err(cx);
427 });
428 register_action(editor, window, |editor, action, window, cx| {
429 editor
430 .go_to_type_definition_split(action, window, cx)
431 .detach_and_log_err(cx);
432 });
433 register_action(editor, window, Editor::open_url);
434 register_action(editor, window, Editor::open_selected_filename);
435 register_action(editor, window, Editor::fold);
436 register_action(editor, window, Editor::fold_at_level);
437 register_action(editor, window, Editor::fold_at_level_1);
438 register_action(editor, window, Editor::fold_at_level_2);
439 register_action(editor, window, Editor::fold_at_level_3);
440 register_action(editor, window, Editor::fold_at_level_4);
441 register_action(editor, window, Editor::fold_at_level_5);
442 register_action(editor, window, Editor::fold_at_level_6);
443 register_action(editor, window, Editor::fold_at_level_7);
444 register_action(editor, window, Editor::fold_at_level_8);
445 register_action(editor, window, Editor::fold_at_level_9);
446 register_action(editor, window, Editor::fold_all);
447 register_action(editor, window, Editor::fold_function_bodies);
448 register_action(editor, window, Editor::fold_recursive);
449 register_action(editor, window, Editor::toggle_fold);
450 register_action(editor, window, Editor::toggle_fold_recursive);
451 register_action(editor, window, Editor::toggle_fold_all);
452 register_action(editor, window, Editor::unfold_lines);
453 register_action(editor, window, Editor::unfold_recursive);
454 register_action(editor, window, Editor::unfold_all);
455 register_action(editor, window, Editor::fold_selected_ranges);
456 register_action(editor, window, Editor::set_mark);
457 register_action(editor, window, Editor::swap_selection_ends);
458 register_action(editor, window, Editor::show_completions);
459 register_action(editor, window, Editor::show_word_completions);
460 register_action(editor, window, Editor::toggle_code_actions);
461 register_action(editor, window, Editor::open_excerpts);
462 register_action(editor, window, Editor::open_excerpts_in_split);
463 register_action(editor, window, Editor::toggle_soft_wrap);
464 register_action(editor, window, Editor::toggle_tab_bar);
465 register_action(editor, window, Editor::toggle_line_numbers);
466 register_action(editor, window, Editor::toggle_relative_line_numbers);
467 register_action(editor, window, Editor::toggle_indent_guides);
468 register_action(editor, window, Editor::toggle_inlay_hints);
469 register_action(editor, window, Editor::toggle_edit_predictions);
470 if editor.read(cx).diagnostics_enabled() {
471 register_action(editor, window, Editor::toggle_diagnostics);
472 }
473 if editor.read(cx).inline_diagnostics_enabled() {
474 register_action(editor, window, Editor::toggle_inline_diagnostics);
475 }
476 if editor.read(cx).supports_minimap(cx) {
477 register_action(editor, window, Editor::toggle_minimap);
478 }
479 register_action(editor, window, hover_popover::hover);
480 register_action(editor, window, Editor::reveal_in_finder);
481 register_action(editor, window, Editor::copy_path);
482 register_action(editor, window, Editor::copy_relative_path);
483 register_action(editor, window, Editor::copy_file_name);
484 register_action(editor, window, Editor::copy_file_name_without_extension);
485 register_action(editor, window, Editor::copy_highlight_json);
486 register_action(editor, window, Editor::copy_permalink_to_line);
487 register_action(editor, window, Editor::open_permalink_to_line);
488 register_action(editor, window, Editor::copy_file_location);
489 register_action(editor, window, Editor::toggle_git_blame);
490 register_action(editor, window, Editor::toggle_git_blame_inline);
491 register_action(editor, window, Editor::open_git_blame_commit);
492 register_action(editor, window, Editor::toggle_selected_diff_hunks);
493 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
494 register_action(editor, window, Editor::stage_and_next);
495 register_action(editor, window, Editor::unstage_and_next);
496 register_action(editor, window, Editor::expand_all_diff_hunks);
497 register_action(editor, window, Editor::collapse_all_diff_hunks);
498 register_action(editor, window, Editor::go_to_previous_change);
499 register_action(editor, window, Editor::go_to_next_change);
500 register_action(editor, window, Editor::go_to_prev_reference);
501 register_action(editor, window, Editor::go_to_next_reference);
502
503 register_action(editor, window, |editor, action, window, cx| {
504 if let Some(task) = editor.format(action, window, cx) {
505 task.detach_and_notify_err(window, cx);
506 } else {
507 cx.propagate();
508 }
509 });
510 register_action(editor, window, |editor, action, window, cx| {
511 if let Some(task) = editor.format_selections(action, window, cx) {
512 task.detach_and_notify_err(window, cx);
513 } else {
514 cx.propagate();
515 }
516 });
517 register_action(editor, window, |editor, action, window, cx| {
518 if let Some(task) = editor.organize_imports(action, window, cx) {
519 task.detach_and_notify_err(window, cx);
520 } else {
521 cx.propagate();
522 }
523 });
524 register_action(editor, window, Editor::restart_language_server);
525 register_action(editor, window, Editor::stop_language_server);
526 register_action(editor, window, Editor::show_character_palette);
527 register_action(editor, window, |editor, action, window, cx| {
528 if let Some(task) = editor.confirm_completion(action, window, cx) {
529 task.detach_and_notify_err(window, cx);
530 } else {
531 cx.propagate();
532 }
533 });
534 register_action(editor, window, |editor, action, window, cx| {
535 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
536 task.detach_and_notify_err(window, cx);
537 } else {
538 cx.propagate();
539 }
540 });
541 register_action(editor, window, |editor, action, window, cx| {
542 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
543 task.detach_and_notify_err(window, cx);
544 } else {
545 cx.propagate();
546 }
547 });
548 register_action(editor, window, |editor, action, window, cx| {
549 if let Some(task) = editor.compose_completion(action, window, cx) {
550 task.detach_and_notify_err(window, cx);
551 } else {
552 cx.propagate();
553 }
554 });
555 register_action(editor, window, |editor, action, window, cx| {
556 if let Some(task) = editor.confirm_code_action(action, window, cx) {
557 task.detach_and_notify_err(window, cx);
558 } else {
559 cx.propagate();
560 }
561 });
562 register_action(editor, window, |editor, action, window, cx| {
563 if let Some(task) = editor.rename(action, window, cx) {
564 task.detach_and_notify_err(window, cx);
565 } else {
566 cx.propagate();
567 }
568 });
569 register_action(editor, window, |editor, action, window, cx| {
570 if let Some(task) = editor.confirm_rename(action, window, cx) {
571 task.detach_and_notify_err(window, cx);
572 } else {
573 cx.propagate();
574 }
575 });
576 register_action(editor, window, |editor, action, window, cx| {
577 if let Some(task) = editor.find_all_references(action, window, cx) {
578 task.detach_and_log_err(cx);
579 } else {
580 cx.propagate();
581 }
582 });
583 register_action(editor, window, Editor::show_signature_help);
584 register_action(editor, window, Editor::signature_help_prev);
585 register_action(editor, window, Editor::signature_help_next);
586 register_action(editor, window, Editor::next_edit_prediction);
587 register_action(editor, window, Editor::previous_edit_prediction);
588 register_action(editor, window, Editor::show_edit_prediction);
589 register_action(editor, window, Editor::context_menu_first);
590 register_action(editor, window, Editor::context_menu_prev);
591 register_action(editor, window, Editor::context_menu_next);
592 register_action(editor, window, Editor::context_menu_last);
593 register_action(editor, window, Editor::display_cursor_names);
594 register_action(editor, window, Editor::unique_lines_case_insensitive);
595 register_action(editor, window, Editor::unique_lines_case_sensitive);
596 register_action(editor, window, Editor::accept_partial_edit_prediction);
597 register_action(editor, window, Editor::accept_edit_prediction);
598 register_action(editor, window, Editor::restore_file);
599 register_action(editor, window, Editor::git_restore);
600 register_action(editor, window, Editor::apply_all_diff_hunks);
601 register_action(editor, window, Editor::apply_selected_diff_hunks);
602 register_action(editor, window, Editor::open_active_item_in_terminal);
603 register_action(editor, window, Editor::reload_file);
604 register_action(editor, window, Editor::spawn_nearest_task);
605 register_action(editor, window, Editor::insert_uuid_v4);
606 register_action(editor, window, Editor::insert_uuid_v7);
607 register_action(editor, window, Editor::open_selections_in_multibuffer);
608 register_action(editor, window, Editor::toggle_breakpoint);
609 register_action(editor, window, Editor::edit_log_breakpoint);
610 register_action(editor, window, Editor::enable_breakpoint);
611 register_action(editor, window, Editor::disable_breakpoint);
612 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
613 register_action(editor, window, Editor::wrap_selections_in_tag);
614 }
615 }
616
617 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
618 let position_map = layout.position_map.clone();
619 window.on_key_event({
620 let editor = self.editor.clone();
621 move |event: &ModifiersChangedEvent, phase, window, cx| {
622 if phase != DispatchPhase::Bubble {
623 return;
624 }
625 editor.update(cx, |editor, cx| {
626 let inlay_hint_settings = inlay_hint_settings(
627 editor.selections.newest_anchor().head(),
628 &editor.buffer.read(cx).snapshot(cx),
629 cx,
630 );
631
632 if let Some(inlay_modifiers) = inlay_hint_settings
633 .toggle_on_modifiers_press
634 .as_ref()
635 .filter(|modifiers| modifiers.modified())
636 {
637 editor.refresh_inlay_hints(
638 InlayHintRefreshReason::ModifiersChanged(
639 inlay_modifiers == &event.modifiers,
640 ),
641 cx,
642 );
643 }
644
645 if editor.hover_state.focused(window, cx) {
646 return;
647 }
648
649 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
650 })
651 }
652 });
653 }
654
655 fn mouse_left_down(
656 editor: &mut Editor,
657 event: &MouseDownEvent,
658 position_map: &PositionMap,
659 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
660 window: &mut Window,
661 cx: &mut Context<Editor>,
662 ) {
663 if window.default_prevented() {
664 return;
665 }
666
667 let text_hitbox = &position_map.text_hitbox;
668 let gutter_hitbox = &position_map.gutter_hitbox;
669 let point_for_position = position_map.point_for_position(event.position);
670 let mut click_count = event.click_count;
671 let mut modifiers = event.modifiers;
672
673 if let Some(hovered_hunk) =
674 position_map
675 .display_hunks
676 .iter()
677 .find_map(|(hunk, hunk_hitbox)| match hunk {
678 DisplayDiffHunk::Folded { .. } => None,
679 DisplayDiffHunk::Unfolded {
680 multi_buffer_range, ..
681 } => hunk_hitbox
682 .as_ref()
683 .is_some_and(|hitbox| hitbox.is_hovered(window))
684 .then(|| multi_buffer_range.clone()),
685 })
686 {
687 editor.toggle_single_diff_hunk(hovered_hunk, cx);
688 cx.notify();
689 return;
690 } else if gutter_hitbox.is_hovered(window) {
691 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
692 } else if !text_hitbox.is_hovered(window) {
693 return;
694 }
695
696 if EditorSettings::get_global(cx)
697 .drag_and_drop_selection
698 .enabled
699 && click_count == 1
700 && !modifiers.shift
701 {
702 let newest_anchor = editor.selections.newest_anchor();
703 let snapshot = editor.snapshot(window, cx);
704 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
705 if point_for_position.intersects_selection(&selection) {
706 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
707 selection: newest_anchor.clone(),
708 click_position: event.position,
709 mouse_down_time: Instant::now(),
710 };
711 cx.stop_propagation();
712 return;
713 }
714 }
715
716 let is_singleton = editor.buffer().read(cx).is_singleton();
717
718 if click_count == 2 && !is_singleton {
719 match EditorSettings::get_global(cx).double_click_in_multibuffer {
720 DoubleClickInMultibuffer::Select => {
721 // do nothing special on double click, all selection logic is below
722 }
723 DoubleClickInMultibuffer::Open => {
724 if modifiers.alt {
725 // if double click is made with alt, pretend it's a regular double click without opening and alt,
726 // and run the selection logic.
727 modifiers.alt = false;
728 } else {
729 let scroll_position_row = position_map.scroll_position.y;
730 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
731 / position_map.line_height)
732 as f64
733 + position_map.scroll_position.y)
734 as u32;
735 let multi_buffer_row = position_map
736 .snapshot
737 .display_point_to_point(
738 DisplayPoint::new(DisplayRow(display_row), 0),
739 Bias::Right,
740 )
741 .row;
742 let line_offset_from_top = display_row - scroll_position_row as u32;
743 // if double click is made without alt, open the corresponding excerp
744 editor.open_excerpts_common(
745 Some(JumpData::MultiBufferRow {
746 row: MultiBufferRow(multi_buffer_row),
747 line_offset_from_top,
748 }),
749 false,
750 window,
751 cx,
752 );
753 return;
754 }
755 }
756 }
757 }
758
759 if !is_singleton {
760 let display_row = (ScrollPixelOffset::from(
761 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
762 ) + position_map.scroll_position.y) as u32;
763 let multi_buffer_row = position_map
764 .snapshot
765 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
766 .row;
767 if line_numbers
768 .get(&MultiBufferRow(multi_buffer_row))
769 .is_some_and(|line_layout| {
770 line_layout.segments.iter().any(|segment| {
771 segment
772 .hitbox
773 .as_ref()
774 .is_some_and(|hitbox| hitbox.contains(&event.position))
775 })
776 })
777 {
778 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
779
780 editor.open_excerpts_common(
781 Some(JumpData::MultiBufferRow {
782 row: MultiBufferRow(multi_buffer_row),
783 line_offset_from_top,
784 }),
785 modifiers.alt,
786 window,
787 cx,
788 );
789 cx.stop_propagation();
790 return;
791 }
792 }
793
794 let position = point_for_position.previous_valid;
795 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
796 editor.select(
797 SelectPhase::BeginColumnar {
798 position,
799 reset: match mode {
800 ColumnarMode::FromMouse => true,
801 ColumnarMode::FromSelection => false,
802 },
803 mode,
804 goal_column: point_for_position.exact_unclipped.column(),
805 },
806 window,
807 cx,
808 );
809 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
810 {
811 editor.select(
812 SelectPhase::Extend {
813 position,
814 click_count,
815 },
816 window,
817 cx,
818 );
819 } else {
820 editor.select(
821 SelectPhase::Begin {
822 position,
823 add: Editor::is_alt_pressed(&modifiers, cx),
824 click_count,
825 },
826 window,
827 cx,
828 );
829 }
830 cx.stop_propagation();
831 }
832
833 fn mouse_right_down(
834 editor: &mut Editor,
835 event: &MouseDownEvent,
836 position_map: &PositionMap,
837 window: &mut Window,
838 cx: &mut Context<Editor>,
839 ) {
840 if position_map.gutter_hitbox.is_hovered(window) {
841 let gutter_right_padding = editor.gutter_dimensions.right_padding;
842 let hitbox = &position_map.gutter_hitbox;
843
844 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
845 let point_for_position = position_map.point_for_position(event.position);
846 editor.set_breakpoint_context_menu(
847 point_for_position.previous_valid.row(),
848 None,
849 event.position,
850 window,
851 cx,
852 );
853 }
854 return;
855 }
856
857 if !position_map.text_hitbox.is_hovered(window) {
858 return;
859 }
860
861 let point_for_position = position_map.point_for_position(event.position);
862 mouse_context_menu::deploy_context_menu(
863 editor,
864 Some(event.position),
865 point_for_position.previous_valid,
866 window,
867 cx,
868 );
869 cx.stop_propagation();
870 }
871
872 fn mouse_middle_down(
873 editor: &mut Editor,
874 event: &MouseDownEvent,
875 position_map: &PositionMap,
876 window: &mut Window,
877 cx: &mut Context<Editor>,
878 ) {
879 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
880 return;
881 }
882
883 let point_for_position = position_map.point_for_position(event.position);
884 let position = point_for_position.previous_valid;
885
886 editor.select(
887 SelectPhase::BeginColumnar {
888 position,
889 reset: true,
890 mode: ColumnarMode::FromMouse,
891 goal_column: point_for_position.exact_unclipped.column(),
892 },
893 window,
894 cx,
895 );
896 }
897
898 fn mouse_up(
899 editor: &mut Editor,
900 event: &MouseUpEvent,
901 position_map: &PositionMap,
902 window: &mut Window,
903 cx: &mut Context<Editor>,
904 ) {
905 let text_hitbox = &position_map.text_hitbox;
906 let end_selection = editor.has_pending_selection();
907 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
908 let point_for_position = position_map.point_for_position(event.position);
909
910 match editor.selection_drag_state {
911 SelectionDragState::ReadyToDrag {
912 selection: _,
913 ref click_position,
914 mouse_down_time: _,
915 } => {
916 if event.position == *click_position {
917 editor.select(
918 SelectPhase::Begin {
919 position: point_for_position.previous_valid,
920 add: false,
921 click_count: 1, // ready to drag state only occurs on click count 1
922 },
923 window,
924 cx,
925 );
926 editor.selection_drag_state = SelectionDragState::None;
927 cx.stop_propagation();
928 return;
929 } else {
930 debug_panic!("drag state can never be in ready state after drag")
931 }
932 }
933 SelectionDragState::Dragging { ref selection, .. } => {
934 let snapshot = editor.snapshot(window, cx);
935 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
936 if !point_for_position.intersects_selection(&selection_display)
937 && text_hitbox.is_hovered(window)
938 {
939 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
940 || cfg!(not(target_os = "macos")) && event.modifiers.control);
941 editor.move_selection_on_drop(
942 &selection.clone(),
943 point_for_position.previous_valid,
944 is_cut,
945 window,
946 cx,
947 );
948 }
949 editor.selection_drag_state = SelectionDragState::None;
950 cx.stop_propagation();
951 cx.notify();
952 return;
953 }
954 _ => {}
955 }
956
957 if end_selection {
958 editor.select(SelectPhase::End, window, cx);
959 }
960
961 if end_selection && pending_nonempty_selections {
962 cx.stop_propagation();
963 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
964 && event.button == MouseButton::Middle
965 {
966 #[allow(
967 clippy::collapsible_if,
968 clippy::needless_return,
969 reason = "The cfg-block below makes this a false positive"
970 )]
971 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
972 return;
973 }
974
975 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
976 if EditorSettings::get_global(cx).middle_click_paste {
977 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
978 let point_for_position = position_map.point_for_position(event.position);
979 let position = point_for_position.previous_valid;
980
981 editor.select(
982 SelectPhase::Begin {
983 position,
984 add: false,
985 click_count: 1,
986 },
987 window,
988 cx,
989 );
990 editor.insert(&text, window, cx);
991 }
992 cx.stop_propagation()
993 }
994 }
995 }
996
997 fn click(
998 editor: &mut Editor,
999 event: &ClickEvent,
1000 position_map: &PositionMap,
1001 window: &mut Window,
1002 cx: &mut Context<Editor>,
1003 ) {
1004 let text_hitbox = &position_map.text_hitbox;
1005 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1006
1007 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1008
1009 if let Some(mouse_position) = event.mouse_position()
1010 && !pending_nonempty_selections
1011 && hovered_link_modifier
1012 && text_hitbox.is_hovered(window)
1013 {
1014 let point = position_map.point_for_position(mouse_position);
1015 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1016 editor.selection_drag_state = SelectionDragState::None;
1017
1018 cx.stop_propagation();
1019 }
1020 }
1021
1022 fn mouse_dragged(
1023 editor: &mut Editor,
1024 event: &MouseMoveEvent,
1025 position_map: &PositionMap,
1026 window: &mut Window,
1027 cx: &mut Context<Editor>,
1028 ) {
1029 if !editor.has_pending_selection()
1030 && matches!(editor.selection_drag_state, SelectionDragState::None)
1031 {
1032 return;
1033 }
1034
1035 let point_for_position = position_map.point_for_position(event.position);
1036 let text_hitbox = &position_map.text_hitbox;
1037
1038 let scroll_delta = {
1039 let text_bounds = text_hitbox.bounds;
1040 let mut scroll_delta = gpui::Point::<f32>::default();
1041 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1042 let top = text_bounds.origin.y + vertical_margin;
1043 let bottom = text_bounds.bottom_left().y - vertical_margin;
1044 if event.position.y < top {
1045 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1046 }
1047 if event.position.y > bottom {
1048 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1049 }
1050
1051 // We need horizontal width of text
1052 let style = editor.style.clone().unwrap_or_default();
1053 let font_id = window.text_system().resolve_font(&style.text.font());
1054 let font_size = style.text.font_size.to_pixels(window.rem_size());
1055 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1056
1057 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1058
1059 let scroll_space: Pixels = scroll_margin_x * em_width;
1060
1061 let left = text_bounds.origin.x + scroll_space;
1062 let right = text_bounds.top_right().x - scroll_space;
1063
1064 if event.position.x < left {
1065 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1066 }
1067 if event.position.x > right {
1068 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1069 }
1070 scroll_delta
1071 };
1072
1073 if !editor.has_pending_selection() {
1074 let drop_anchor = position_map
1075 .snapshot
1076 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1077 match editor.selection_drag_state {
1078 SelectionDragState::Dragging {
1079 ref mut drop_cursor,
1080 ref mut hide_drop_cursor,
1081 ..
1082 } => {
1083 drop_cursor.start = drop_anchor;
1084 drop_cursor.end = drop_anchor;
1085 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1086 editor.apply_scroll_delta(scroll_delta, window, cx);
1087 cx.notify();
1088 }
1089 SelectionDragState::ReadyToDrag {
1090 ref selection,
1091 ref click_position,
1092 ref mouse_down_time,
1093 } => {
1094 let drag_and_drop_delay = Duration::from_millis(
1095 EditorSettings::get_global(cx)
1096 .drag_and_drop_selection
1097 .delay
1098 .0,
1099 );
1100 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1101 let drop_cursor = Selection {
1102 id: post_inc(&mut editor.selections.next_selection_id()),
1103 start: drop_anchor,
1104 end: drop_anchor,
1105 reversed: false,
1106 goal: SelectionGoal::None,
1107 };
1108 editor.selection_drag_state = SelectionDragState::Dragging {
1109 selection: selection.clone(),
1110 drop_cursor,
1111 hide_drop_cursor: false,
1112 };
1113 editor.apply_scroll_delta(scroll_delta, window, cx);
1114 cx.notify();
1115 } else {
1116 let click_point = position_map.point_for_position(*click_position);
1117 editor.selection_drag_state = SelectionDragState::None;
1118 editor.select(
1119 SelectPhase::Begin {
1120 position: click_point.previous_valid,
1121 add: false,
1122 click_count: 1,
1123 },
1124 window,
1125 cx,
1126 );
1127 editor.select(
1128 SelectPhase::Update {
1129 position: point_for_position.previous_valid,
1130 goal_column: point_for_position.exact_unclipped.column(),
1131 scroll_delta,
1132 },
1133 window,
1134 cx,
1135 );
1136 }
1137 }
1138 _ => {}
1139 }
1140 } else {
1141 editor.select(
1142 SelectPhase::Update {
1143 position: point_for_position.previous_valid,
1144 goal_column: point_for_position.exact_unclipped.column(),
1145 scroll_delta,
1146 },
1147 window,
1148 cx,
1149 );
1150 }
1151 }
1152
1153 fn mouse_moved(
1154 editor: &mut Editor,
1155 event: &MouseMoveEvent,
1156 position_map: &PositionMap,
1157 window: &mut Window,
1158 cx: &mut Context<Editor>,
1159 ) {
1160 let text_hitbox = &position_map.text_hitbox;
1161 let gutter_hitbox = &position_map.gutter_hitbox;
1162 let modifiers = event.modifiers;
1163 let text_hovered = text_hitbox.is_hovered(window);
1164 let gutter_hovered = gutter_hitbox.is_hovered(window);
1165 editor.set_gutter_hovered(gutter_hovered, cx);
1166 editor.show_mouse_cursor(cx);
1167
1168 let point_for_position = position_map.point_for_position(event.position);
1169 let valid_point = point_for_position.previous_valid;
1170
1171 let hovered_diff_control = position_map
1172 .diff_hunk_control_bounds
1173 .iter()
1174 .find(|(_, bounds)| bounds.contains(&event.position))
1175 .map(|(row, _)| *row);
1176
1177 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1178 Some(control_row)
1179 } else if text_hovered {
1180 let current_row = valid_point.row();
1181 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1182 if let DisplayDiffHunk::Unfolded {
1183 display_row_range, ..
1184 } = hunk
1185 {
1186 if display_row_range.contains(¤t_row) {
1187 Some(display_row_range.start)
1188 } else {
1189 None
1190 }
1191 } else {
1192 None
1193 }
1194 })
1195 } else {
1196 None
1197 };
1198
1199 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1200 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1201 cx.notify();
1202 }
1203
1204 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1205 let mouse_over_inline_blame = bounds.contains(&event.position);
1206 let mouse_over_popover = editor
1207 .inline_blame_popover
1208 .as_ref()
1209 .and_then(|state| state.popover_bounds)
1210 .is_some_and(|bounds| bounds.contains(&event.position));
1211 let keyboard_grace = editor
1212 .inline_blame_popover
1213 .as_ref()
1214 .is_some_and(|state| state.keyboard_grace);
1215
1216 if mouse_over_inline_blame || mouse_over_popover {
1217 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1218 } else if !keyboard_grace {
1219 editor.hide_blame_popover(false, cx);
1220 }
1221 } else {
1222 editor.hide_blame_popover(false, cx);
1223 }
1224
1225 let breakpoint_indicator = if gutter_hovered {
1226 let buffer_anchor = position_map
1227 .snapshot
1228 .display_point_to_anchor(valid_point, Bias::Left);
1229
1230 if let Some((buffer_snapshot, file)) = position_map
1231 .snapshot
1232 .buffer_snapshot()
1233 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1234 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1235 {
1236 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1237
1238 let is_visible = editor
1239 .gutter_breakpoint_indicator
1240 .0
1241 .is_some_and(|indicator| indicator.is_active);
1242
1243 let has_existing_breakpoint =
1244 editor.breakpoint_store.as_ref().is_some_and(|store| {
1245 let Some(project) = &editor.project else {
1246 return false;
1247 };
1248 let Some(abs_path) = project.read(cx).absolute_path(
1249 &ProjectPath {
1250 path: file.path().clone(),
1251 worktree_id: file.worktree_id(cx),
1252 },
1253 cx,
1254 ) else {
1255 return false;
1256 };
1257 store
1258 .read(cx)
1259 .breakpoint_at_row(&abs_path, as_point.row, cx)
1260 .is_some()
1261 });
1262
1263 if !is_visible {
1264 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1265 cx.spawn(async move |this, cx| {
1266 cx.background_executor()
1267 .timer(Duration::from_millis(200))
1268 .await;
1269
1270 this.update(cx, |this, cx| {
1271 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1272 {
1273 indicator.is_active = true;
1274 cx.notify();
1275 }
1276 })
1277 .ok();
1278 })
1279 });
1280 }
1281
1282 Some(PhantomBreakpointIndicator {
1283 display_row: valid_point.row(),
1284 is_active: is_visible,
1285 collides_with_existing_breakpoint: has_existing_breakpoint,
1286 })
1287 } else {
1288 editor.gutter_breakpoint_indicator.1 = None;
1289 None
1290 }
1291 } else {
1292 editor.gutter_breakpoint_indicator.1 = None;
1293 None
1294 };
1295
1296 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1297 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1298 cx.notify();
1299 }
1300
1301 // Don't trigger hover popover if mouse is hovering over context menu
1302 if text_hovered {
1303 editor.update_hovered_link(
1304 point_for_position,
1305 &position_map.snapshot,
1306 modifiers,
1307 window,
1308 cx,
1309 );
1310
1311 if let Some(point) = point_for_position.as_valid() {
1312 let anchor = position_map
1313 .snapshot
1314 .buffer_snapshot()
1315 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1316 hover_at(editor, Some(anchor), window, cx);
1317 Self::update_visible_cursor(editor, point, position_map, window, cx);
1318 } else {
1319 editor.update_inlay_link_and_hover_points(
1320 &position_map.snapshot,
1321 point_for_position,
1322 modifiers.secondary(),
1323 modifiers.shift,
1324 window,
1325 cx,
1326 );
1327 }
1328 } else {
1329 editor.hide_hovered_link(cx);
1330 hover_at(editor, None, window, cx);
1331 }
1332 }
1333
1334 fn update_visible_cursor(
1335 editor: &mut Editor,
1336 point: DisplayPoint,
1337 position_map: &PositionMap,
1338 window: &mut Window,
1339 cx: &mut Context<Editor>,
1340 ) {
1341 let snapshot = &position_map.snapshot;
1342 let Some(hub) = editor.collaboration_hub() else {
1343 return;
1344 };
1345 let start = snapshot.display_snapshot.clip_point(
1346 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1347 Bias::Left,
1348 );
1349 let end = snapshot.display_snapshot.clip_point(
1350 DisplayPoint::new(
1351 point.row(),
1352 (point.column() + 1).min(snapshot.line_len(point.row())),
1353 ),
1354 Bias::Right,
1355 );
1356
1357 let range = snapshot
1358 .buffer_snapshot()
1359 .anchor_before(start.to_point(&snapshot.display_snapshot))
1360 ..snapshot
1361 .buffer_snapshot()
1362 .anchor_after(end.to_point(&snapshot.display_snapshot));
1363
1364 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1365 return;
1366 };
1367 let key = crate::HoveredCursor {
1368 replica_id: selection.replica_id,
1369 selection_id: selection.selection.id,
1370 };
1371 editor.hovered_cursors.insert(
1372 key.clone(),
1373 cx.spawn_in(window, async move |editor, cx| {
1374 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1375 editor
1376 .update(cx, |editor, cx| {
1377 editor.hovered_cursors.remove(&key);
1378 cx.notify();
1379 })
1380 .ok();
1381 }),
1382 );
1383 cx.notify()
1384 }
1385
1386 fn layout_selections(
1387 &self,
1388 start_anchor: Anchor,
1389 end_anchor: Anchor,
1390 local_selections: &[Selection<Point>],
1391 snapshot: &EditorSnapshot,
1392 start_row: DisplayRow,
1393 end_row: DisplayRow,
1394 window: &mut Window,
1395 cx: &mut App,
1396 ) -> (
1397 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1398 BTreeMap<DisplayRow, LineHighlightSpec>,
1399 Option<DisplayPoint>,
1400 ) {
1401 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1402 let mut active_rows = BTreeMap::new();
1403 let mut newest_selection_head = None;
1404
1405 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1406 return (selections, active_rows, newest_selection_head);
1407 };
1408
1409 editor_with_selections.update(cx, |editor, cx| {
1410 if editor.show_local_selections {
1411 let mut layouts = Vec::new();
1412 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1413 for selection in local_selections.iter().cloned() {
1414 let is_empty = selection.start == selection.end;
1415 let is_newest = selection == newest;
1416
1417 let layout = SelectionLayout::new(
1418 selection,
1419 editor.selections.line_mode(),
1420 editor.cursor_shape,
1421 &snapshot.display_snapshot,
1422 is_newest,
1423 editor.leader_id.is_none(),
1424 None,
1425 );
1426 if is_newest {
1427 newest_selection_head = Some(layout.head);
1428 }
1429
1430 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1431 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1432 {
1433 let contains_non_empty_selection = active_rows
1434 .entry(DisplayRow(row))
1435 .or_insert_with(LineHighlightSpec::default);
1436 contains_non_empty_selection.selection |= !is_empty;
1437 }
1438 layouts.push(layout);
1439 }
1440
1441 let mut player = editor.current_user_player_color(cx);
1442 if !editor.is_focused(window) {
1443 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1444 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1445 }
1446 selections.push((player, layouts));
1447
1448 if let SelectionDragState::Dragging {
1449 ref selection,
1450 ref drop_cursor,
1451 ref hide_drop_cursor,
1452 } = editor.selection_drag_state
1453 && !hide_drop_cursor
1454 && (drop_cursor
1455 .start
1456 .cmp(&selection.start, &snapshot.buffer_snapshot())
1457 .eq(&Ordering::Less)
1458 || drop_cursor
1459 .end
1460 .cmp(&selection.end, &snapshot.buffer_snapshot())
1461 .eq(&Ordering::Greater))
1462 {
1463 let drag_cursor_layout = SelectionLayout::new(
1464 drop_cursor.clone(),
1465 false,
1466 CursorShape::Bar,
1467 &snapshot.display_snapshot,
1468 false,
1469 false,
1470 None,
1471 );
1472 let absent_color = cx.theme().players().absent();
1473 selections.push((absent_color, vec![drag_cursor_layout]));
1474 }
1475 }
1476
1477 if let Some(collaboration_hub) = &editor.collaboration_hub {
1478 // When following someone, render the local selections in their color.
1479 if let Some(leader_id) = editor.leader_id {
1480 match leader_id {
1481 CollaboratorId::PeerId(peer_id) => {
1482 if let Some(collaborator) =
1483 collaboration_hub.collaborators(cx).get(&peer_id)
1484 && let Some(participant_index) = collaboration_hub
1485 .user_participant_indices(cx)
1486 .get(&collaborator.user_id)
1487 && let Some((local_selection_style, _)) = selections.first_mut()
1488 {
1489 *local_selection_style = cx
1490 .theme()
1491 .players()
1492 .color_for_participant(participant_index.0);
1493 }
1494 }
1495 CollaboratorId::Agent => {
1496 if let Some((local_selection_style, _)) = selections.first_mut() {
1497 *local_selection_style = cx.theme().players().agent();
1498 }
1499 }
1500 }
1501 }
1502
1503 let mut remote_selections = HashMap::default();
1504 for selection in snapshot.remote_selections_in_range(
1505 &(start_anchor..end_anchor),
1506 collaboration_hub.as_ref(),
1507 cx,
1508 ) {
1509 // Don't re-render the leader's selections, since the local selections
1510 // match theirs.
1511 if Some(selection.collaborator_id) == editor.leader_id {
1512 continue;
1513 }
1514 let key = HoveredCursor {
1515 replica_id: selection.replica_id,
1516 selection_id: selection.selection.id,
1517 };
1518
1519 let is_shown =
1520 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1521
1522 remote_selections
1523 .entry(selection.replica_id)
1524 .or_insert((selection.color, Vec::new()))
1525 .1
1526 .push(SelectionLayout::new(
1527 selection.selection,
1528 selection.line_mode,
1529 selection.cursor_shape,
1530 &snapshot.display_snapshot,
1531 false,
1532 false,
1533 if is_shown { selection.user_name } else { None },
1534 ));
1535 }
1536
1537 selections.extend(remote_selections.into_values());
1538 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1539 let layouts = snapshot
1540 .buffer_snapshot()
1541 .selections_in_range(&(start_anchor..end_anchor), true)
1542 .map(move |(_, line_mode, cursor_shape, selection)| {
1543 SelectionLayout::new(
1544 selection,
1545 line_mode,
1546 cursor_shape,
1547 &snapshot.display_snapshot,
1548 false,
1549 false,
1550 None,
1551 )
1552 })
1553 .collect::<Vec<_>>();
1554 let player = editor.current_user_player_color(cx);
1555 selections.push((player, layouts));
1556 }
1557 });
1558
1559 #[cfg(debug_assertions)]
1560 Self::layout_debug_ranges(
1561 &mut selections,
1562 start_anchor..end_anchor,
1563 &snapshot.display_snapshot,
1564 cx,
1565 );
1566
1567 (selections, active_rows, newest_selection_head)
1568 }
1569
1570 fn collect_cursors(
1571 &self,
1572 snapshot: &EditorSnapshot,
1573 cx: &mut App,
1574 ) -> Vec<(DisplayPoint, Hsla)> {
1575 let editor = self.editor.read(cx);
1576 let mut cursors = Vec::new();
1577 let mut skip_local = false;
1578 let mut add_cursor = |anchor: Anchor, color| {
1579 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1580 };
1581 // Remote cursors
1582 if let Some(collaboration_hub) = &editor.collaboration_hub {
1583 for remote_selection in snapshot.remote_selections_in_range(
1584 &(Anchor::min()..Anchor::max()),
1585 collaboration_hub.deref(),
1586 cx,
1587 ) {
1588 add_cursor(
1589 remote_selection.selection.head(),
1590 remote_selection.color.cursor,
1591 );
1592 if Some(remote_selection.collaborator_id) == editor.leader_id {
1593 skip_local = true;
1594 }
1595 }
1596 }
1597 // Local cursors
1598 if !skip_local {
1599 let color = cx.theme().players().local().cursor;
1600 editor
1601 .selections
1602 .disjoint_anchors()
1603 .iter()
1604 .for_each(|selection| {
1605 add_cursor(selection.head(), color);
1606 });
1607 if let Some(ref selection) = editor.selections.pending_anchor() {
1608 add_cursor(selection.head(), color);
1609 }
1610 }
1611 cursors
1612 }
1613
1614 fn layout_visible_cursors(
1615 &self,
1616 snapshot: &EditorSnapshot,
1617 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1618 row_block_types: &HashMap<DisplayRow, bool>,
1619 visible_display_row_range: Range<DisplayRow>,
1620 line_layouts: &[LineWithInvisibles],
1621 text_hitbox: &Hitbox,
1622 content_origin: gpui::Point<Pixels>,
1623 scroll_position: gpui::Point<ScrollOffset>,
1624 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1625 line_height: Pixels,
1626 em_width: Pixels,
1627 em_advance: Pixels,
1628 autoscroll_containing_element: bool,
1629 window: &mut Window,
1630 cx: &mut App,
1631 ) -> Vec<CursorLayout> {
1632 let mut autoscroll_bounds = None;
1633 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1634 let mut cursors = Vec::new();
1635
1636 let show_local_cursors = editor.show_local_cursors(window, cx);
1637
1638 for (player_color, selections) in selections {
1639 for selection in selections {
1640 let cursor_position = selection.head;
1641
1642 let in_range = visible_display_row_range.contains(&cursor_position.row());
1643 if (selection.is_local && !show_local_cursors)
1644 || !in_range
1645 || row_block_types.get(&cursor_position.row()) == Some(&true)
1646 {
1647 continue;
1648 }
1649
1650 let cursor_row_layout = &line_layouts
1651 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1652 let cursor_column = cursor_position.column() as usize;
1653
1654 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1655 let mut block_width =
1656 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1657 if block_width == Pixels::ZERO {
1658 block_width = em_advance;
1659 }
1660 let block_text = if let CursorShape::Block = selection.cursor_shape {
1661 snapshot
1662 .grapheme_at(cursor_position)
1663 .or_else(|| {
1664 if snapshot.is_empty() {
1665 snapshot.placeholder_text().and_then(|s| {
1666 s.graphemes(true).next().map(|s| s.to_string().into())
1667 })
1668 } else {
1669 None
1670 }
1671 })
1672 .map(|text| {
1673 let len = text.len();
1674
1675 let mut font = cursor_row_layout
1676 .font_id_for_index(cursor_column)
1677 .and_then(|cursor_font_id| {
1678 window.text_system().get_font_for_id(cursor_font_id)
1679 })
1680 .unwrap_or(self.style.text.font());
1681 font.features = self.style.text.font_features.clone();
1682
1683 // Invert the text color for the block cursor. Ensure that the text
1684 // color is opaque enough to be visible against the background color.
1685 //
1686 // 0.75 is an arbitrary threshold to determine if the background color is
1687 // opaque enough to use as a text color.
1688 //
1689 // TODO: In the future we should ensure themes have a `text_inverse` color.
1690 let color = if cx.theme().colors().editor_background.a < 0.75 {
1691 match cx.theme().appearance {
1692 Appearance::Dark => Hsla::black(),
1693 Appearance::Light => Hsla::white(),
1694 }
1695 } else {
1696 cx.theme().colors().editor_background
1697 };
1698
1699 window.text_system().shape_line(
1700 text,
1701 cursor_row_layout.font_size,
1702 &[TextRun {
1703 len,
1704 font,
1705 color,
1706 ..Default::default()
1707 }],
1708 None,
1709 )
1710 })
1711 } else {
1712 None
1713 };
1714
1715 let x = cursor_character_x - scroll_pixel_position.x.into();
1716 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1717 * ScrollPixelOffset::from(line_height))
1718 .into();
1719 if selection.is_newest {
1720 editor.pixel_position_of_newest_cursor = Some(point(
1721 text_hitbox.origin.x + x + block_width / 2.,
1722 text_hitbox.origin.y + y + line_height / 2.,
1723 ));
1724
1725 if autoscroll_containing_element {
1726 let top = text_hitbox.origin.y
1727 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1728 .max(0.)
1729 * ScrollPixelOffset::from(line_height))
1730 .into();
1731 let left = text_hitbox.origin.x
1732 + ((cursor_position.column() as ScrollOffset
1733 - scroll_position.x
1734 - 3.)
1735 .max(0.)
1736 * ScrollPixelOffset::from(em_width))
1737 .into();
1738
1739 let bottom = text_hitbox.origin.y
1740 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1741 * ScrollPixelOffset::from(line_height))
1742 .into();
1743 let right = text_hitbox.origin.x
1744 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1745 + 4.)
1746 * ScrollPixelOffset::from(em_width))
1747 .into();
1748
1749 autoscroll_bounds =
1750 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1751 }
1752 }
1753
1754 let mut cursor = CursorLayout {
1755 color: player_color.cursor,
1756 block_width,
1757 origin: point(x, y),
1758 line_height,
1759 shape: selection.cursor_shape,
1760 block_text,
1761 cursor_name: None,
1762 };
1763 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1764 string: name,
1765 color: self.style.background,
1766 is_top_row: cursor_position.row().0 == 0,
1767 });
1768 cursor.layout(content_origin, cursor_name, window, cx);
1769 cursors.push(cursor);
1770 }
1771 }
1772
1773 cursors
1774 });
1775
1776 if let Some(bounds) = autoscroll_bounds {
1777 window.request_autoscroll(bounds);
1778 }
1779
1780 cursor_layouts
1781 }
1782
1783 fn layout_scrollbars(
1784 &self,
1785 snapshot: &EditorSnapshot,
1786 scrollbar_layout_information: &ScrollbarLayoutInformation,
1787 content_offset: gpui::Point<Pixels>,
1788 scroll_position: gpui::Point<ScrollOffset>,
1789 non_visible_cursors: bool,
1790 right_margin: Pixels,
1791 editor_width: Pixels,
1792 window: &mut Window,
1793 cx: &mut App,
1794 ) -> Option<EditorScrollbars> {
1795 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1796 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1797 || self.style.scrollbar_width.is_zero()
1798 {
1799 return None;
1800 }
1801
1802 // If a drag took place after we started dragging the scrollbar,
1803 // cancel the scrollbar drag.
1804 if cx.has_active_drag() {
1805 self.editor.update(cx, |editor, cx| {
1806 editor.scroll_manager.reset_scrollbar_state(cx)
1807 });
1808 }
1809
1810 let editor_settings = EditorSettings::get_global(cx);
1811 let scrollbar_settings = editor_settings.scrollbar;
1812 let show_scrollbars = match scrollbar_settings.show {
1813 ShowScrollbar::Auto => {
1814 let editor = self.editor.read(cx);
1815 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
1816 // Git
1817 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
1818 ||
1819 // Buffer Search Results
1820 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1821 ||
1822 // Selected Text Occurrences
1823 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1824 ||
1825 // Selected Symbol Occurrences
1826 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1827 ||
1828 // Diagnostics
1829 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
1830 ||
1831 // Cursors out of sight
1832 non_visible_cursors
1833 ||
1834 // Scrollmanager
1835 editor.scroll_manager.scrollbars_visible()
1836 }
1837 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1838 ShowScrollbar::Always => true,
1839 ShowScrollbar::Never => return None,
1840 };
1841
1842 // The horizontal scrollbar is usually slightly offset to align nicely with
1843 // indent guides. However, this offset is not needed if indent guides are
1844 // disabled for the current editor.
1845 let content_offset = self
1846 .editor
1847 .read(cx)
1848 .show_indent_guides
1849 .is_none_or(|should_show| should_show)
1850 .then_some(content_offset)
1851 .unwrap_or_default();
1852
1853 Some(EditorScrollbars::from_scrollbar_axes(
1854 ScrollbarAxes {
1855 horizontal: scrollbar_settings.axes.horizontal
1856 && self.editor.read(cx).show_scrollbars.horizontal,
1857 vertical: scrollbar_settings.axes.vertical
1858 && self.editor.read(cx).show_scrollbars.vertical,
1859 },
1860 scrollbar_layout_information,
1861 content_offset,
1862 scroll_position,
1863 self.style.scrollbar_width,
1864 right_margin,
1865 editor_width,
1866 show_scrollbars,
1867 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1868 window,
1869 ))
1870 }
1871
1872 fn layout_minimap(
1873 &self,
1874 snapshot: &EditorSnapshot,
1875 minimap_width: Pixels,
1876 scroll_position: gpui::Point<f64>,
1877 scrollbar_layout_information: &ScrollbarLayoutInformation,
1878 scrollbar_layout: Option<&EditorScrollbars>,
1879 window: &mut Window,
1880 cx: &mut App,
1881 ) -> Option<MinimapLayout> {
1882 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1883
1884 let minimap_settings = EditorSettings::get_global(cx).minimap;
1885
1886 if minimap_settings.on_active_editor() {
1887 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1888 ws.read(cx)
1889 .active_pane()
1890 .read(cx)
1891 .active_item()
1892 .and_then(|i| i.act_as::<Editor>(cx))
1893 });
1894 if active_editor.is_some_and(|e| e != self.editor) {
1895 return None;
1896 }
1897 }
1898
1899 if !snapshot.mode.is_full()
1900 || minimap_width.is_zero()
1901 || matches!(
1902 minimap_settings.show,
1903 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1904 )
1905 {
1906 return None;
1907 }
1908
1909 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1910
1911 let ScrollbarLayoutInformation {
1912 editor_bounds,
1913 scroll_range,
1914 glyph_grid_cell,
1915 } = scrollbar_layout_information;
1916
1917 let line_height = glyph_grid_cell.height;
1918 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1919
1920 let top_right_anchor = scrollbar_layout
1921 .and_then(|layout| layout.vertical.as_ref())
1922 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1923 .unwrap_or_else(|| editor_bounds.top_right());
1924
1925 let thumb_state = self
1926 .editor
1927 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1928
1929 let show_thumb = match minimap_settings.thumb {
1930 MinimapThumb::Always => true,
1931 MinimapThumb::Hover => thumb_state.is_some(),
1932 };
1933
1934 let minimap_bounds = Bounds::from_corner_and_size(
1935 Corner::TopRight,
1936 top_right_anchor,
1937 size(minimap_width, editor_bounds.size.height),
1938 );
1939 let minimap_line_height = self.get_minimap_line_height(
1940 minimap_editor
1941 .read(cx)
1942 .text_style_refinement
1943 .as_ref()
1944 .and_then(|refinement| refinement.font_size)
1945 .unwrap_or(MINIMAP_FONT_SIZE),
1946 window,
1947 cx,
1948 );
1949 let minimap_height = minimap_bounds.size.height;
1950
1951 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
1952 let total_editor_lines = (scroll_range.height / line_height) as f64;
1953 let minimap_lines = (minimap_height / minimap_line_height) as f64;
1954
1955 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
1956 total_editor_lines,
1957 visible_editor_lines,
1958 minimap_lines,
1959 scroll_position,
1960 );
1961
1962 let layout = ScrollbarLayout::for_minimap(
1963 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
1964 visible_editor_lines,
1965 total_editor_lines,
1966 minimap_line_height,
1967 scroll_position,
1968 minimap_scroll_top,
1969 show_thumb,
1970 )
1971 .with_thumb_state(thumb_state);
1972
1973 minimap_editor.update(cx, |editor, cx| {
1974 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
1975 });
1976
1977 // Required for the drop shadow to be visible
1978 const PADDING_OFFSET: Pixels = px(4.);
1979
1980 let mut minimap = div()
1981 .size_full()
1982 .shadow_xs()
1983 .px(PADDING_OFFSET)
1984 .child(minimap_editor)
1985 .into_any_element();
1986
1987 let extended_bounds = minimap_bounds.extend(Edges {
1988 right: PADDING_OFFSET,
1989 left: PADDING_OFFSET,
1990 ..Default::default()
1991 });
1992 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
1993 window.with_absolute_element_offset(extended_bounds.origin, |window| {
1994 minimap.prepaint(window, cx)
1995 });
1996
1997 Some(MinimapLayout {
1998 minimap,
1999 thumb_layout: layout,
2000 thumb_border_style: minimap_settings.thumb_border,
2001 minimap_line_height,
2002 minimap_scroll_top,
2003 max_scroll_top: total_editor_lines,
2004 })
2005 }
2006
2007 fn get_minimap_line_height(
2008 &self,
2009 font_size: AbsoluteLength,
2010 window: &mut Window,
2011 cx: &mut App,
2012 ) -> Pixels {
2013 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2014 let mut text_style = self.style.text.clone();
2015 text_style.font_size = font_size;
2016 text_style.line_height_in_pixels(rem_size)
2017 }
2018
2019 fn get_minimap_width(
2020 &self,
2021 minimap_settings: &Minimap,
2022 scrollbars_shown: bool,
2023 text_width: Pixels,
2024 em_width: Pixels,
2025 font_size: Pixels,
2026 rem_size: Pixels,
2027 cx: &App,
2028 ) -> Option<Pixels> {
2029 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2030 return None;
2031 }
2032
2033 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2034 editor.minimap().map(|minimap_editor| {
2035 minimap_editor
2036 .read(cx)
2037 .text_style_refinement
2038 .as_ref()
2039 .and_then(|refinement| refinement.font_size)
2040 .unwrap_or(MINIMAP_FONT_SIZE)
2041 })
2042 })?;
2043
2044 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2045
2046 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2047 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2048
2049 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2050 .then_some(minimap_width)
2051 }
2052
2053 fn prepaint_crease_toggles(
2054 &self,
2055 crease_toggles: &mut [Option<AnyElement>],
2056 line_height: Pixels,
2057 gutter_dimensions: &GutterDimensions,
2058 gutter_settings: crate::editor_settings::Gutter,
2059 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2060 gutter_hitbox: &Hitbox,
2061 window: &mut Window,
2062 cx: &mut App,
2063 ) {
2064 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2065 if let Some(crease_toggle) = crease_toggle {
2066 debug_assert!(gutter_settings.folds);
2067 let available_space = size(
2068 AvailableSpace::MinContent,
2069 AvailableSpace::Definite(line_height * 0.55),
2070 );
2071 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2072
2073 let position = point(
2074 gutter_dimensions.width - gutter_dimensions.right_padding,
2075 ix as f32 * line_height
2076 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2077 );
2078 let centering_offset = point(
2079 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2080 (line_height - crease_toggle_size.height) / 2.,
2081 );
2082 let origin = gutter_hitbox.origin + position + centering_offset;
2083 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2084 }
2085 }
2086 }
2087
2088 fn prepaint_expand_toggles(
2089 &self,
2090 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2091 window: &mut Window,
2092 cx: &mut App,
2093 ) {
2094 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2095 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2096 expand_toggle.layout_as_root(available_space, window, cx);
2097 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2098 }
2099 }
2100
2101 fn prepaint_crease_trailers(
2102 &self,
2103 trailers: Vec<Option<AnyElement>>,
2104 lines: &[LineWithInvisibles],
2105 line_height: Pixels,
2106 content_origin: gpui::Point<Pixels>,
2107 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2108 em_width: Pixels,
2109 window: &mut Window,
2110 cx: &mut App,
2111 ) -> Vec<Option<CreaseTrailerLayout>> {
2112 trailers
2113 .into_iter()
2114 .enumerate()
2115 .map(|(ix, element)| {
2116 let mut element = element?;
2117 let available_space = size(
2118 AvailableSpace::MinContent,
2119 AvailableSpace::Definite(line_height),
2120 );
2121 let size = element.layout_as_root(available_space, window, cx);
2122
2123 let line = &lines[ix];
2124 let padding = if line.width == Pixels::ZERO {
2125 Pixels::ZERO
2126 } else {
2127 4. * em_width
2128 };
2129 let position = point(
2130 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2131 ix as f32 * line_height
2132 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2133 );
2134 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2135 let origin = content_origin + position + centering_offset;
2136 element.prepaint_as_root(origin, available_space, window, cx);
2137 Some(CreaseTrailerLayout {
2138 element,
2139 bounds: Bounds::new(origin, size),
2140 })
2141 })
2142 .collect()
2143 }
2144
2145 // Folds contained in a hunk are ignored apart from shrinking visual size
2146 // If a fold contains any hunks then that fold line is marked as modified
2147 fn layout_gutter_diff_hunks(
2148 &self,
2149 line_height: Pixels,
2150 gutter_hitbox: &Hitbox,
2151 display_rows: Range<DisplayRow>,
2152 snapshot: &EditorSnapshot,
2153 window: &mut Window,
2154 cx: &mut App,
2155 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2156 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2157 let mut display_hunks = snapshot
2158 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2159 .map(|hunk| (hunk, None))
2160 .collect::<Vec<_>>();
2161 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2162 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2163 for (hunk, hitbox) in &mut display_hunks {
2164 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2165 let hunk_bounds =
2166 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2167 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2168 }
2169 }
2170 }
2171
2172 display_hunks
2173 }
2174
2175 fn layout_inline_diagnostics(
2176 &self,
2177 line_layouts: &[LineWithInvisibles],
2178 crease_trailers: &[Option<CreaseTrailerLayout>],
2179 row_block_types: &HashMap<DisplayRow, bool>,
2180 content_origin: gpui::Point<Pixels>,
2181 scroll_position: gpui::Point<ScrollOffset>,
2182 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2183 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2184 start_row: DisplayRow,
2185 end_row: DisplayRow,
2186 line_height: Pixels,
2187 em_width: Pixels,
2188 style: &EditorStyle,
2189 window: &mut Window,
2190 cx: &mut App,
2191 ) -> HashMap<DisplayRow, AnyElement> {
2192 let max_severity = match self
2193 .editor
2194 .read(cx)
2195 .inline_diagnostics_enabled()
2196 .then(|| {
2197 ProjectSettings::get_global(cx)
2198 .diagnostics
2199 .inline
2200 .max_severity
2201 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2202 .into_lsp()
2203 })
2204 .flatten()
2205 {
2206 Some(max_severity) => max_severity,
2207 None => return HashMap::default(),
2208 };
2209
2210 let active_diagnostics_group =
2211 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2212 Some(group.group_id)
2213 } else {
2214 None
2215 };
2216
2217 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2218 let snapshot = editor.snapshot(window, cx);
2219 editor
2220 .inline_diagnostics
2221 .iter()
2222 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2223 .filter(|(_, diagnostic)| match active_diagnostics_group {
2224 Some(active_diagnostics_group) => {
2225 // Active diagnostics are all shown in the editor already, no need to display them inline
2226 diagnostic.group_id != active_diagnostics_group
2227 }
2228 None => true,
2229 })
2230 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2231 .skip_while(|(point, _)| point.row() < start_row)
2232 .take_while(|(point, _)| point.row() < end_row)
2233 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2234 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2235 acc.entry(point.row())
2236 .or_insert_with(Vec::new)
2237 .push(diagnostic);
2238 acc
2239 })
2240 });
2241
2242 if diagnostics_by_rows.is_empty() {
2243 return HashMap::default();
2244 }
2245
2246 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2247 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2248 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2249 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2250 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2251 _ => Color::Error,
2252 };
2253
2254 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2255 let min_x = self.column_pixels(
2256 ProjectSettings::get_global(cx)
2257 .diagnostics
2258 .inline
2259 .min_column as usize,
2260 window,
2261 );
2262
2263 let mut elements = HashMap::default();
2264 for (row, mut diagnostics) in diagnostics_by_rows {
2265 diagnostics.sort_by_key(|diagnostic| {
2266 (
2267 diagnostic.severity,
2268 std::cmp::Reverse(diagnostic.is_primary),
2269 diagnostic.start.row,
2270 diagnostic.start.column,
2271 )
2272 });
2273
2274 let Some(diagnostic_to_render) = diagnostics
2275 .iter()
2276 .find(|diagnostic| diagnostic.is_primary)
2277 .or_else(|| diagnostics.first())
2278 else {
2279 continue;
2280 };
2281
2282 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2283
2284 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2285 let pos_x = {
2286 let crease_trailer_layout = &crease_trailers[window_ix];
2287 let line_layout = &line_layouts[window_ix];
2288
2289 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2290 crease_trailer.bounds.right()
2291 } else {
2292 Pixels::from(
2293 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2294 - scroll_pixel_position.x,
2295 )
2296 };
2297
2298 let padded_line = line_end + padding;
2299 let min_start = Pixels::from(
2300 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2301 );
2302
2303 cmp::max(padded_line, min_start)
2304 };
2305
2306 let behind_edit_prediction_popover = edit_prediction_popover_origin
2307 .as_ref()
2308 .is_some_and(|edit_prediction_popover_origin| {
2309 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2310 });
2311 let opacity = if behind_edit_prediction_popover {
2312 0.5
2313 } else {
2314 1.0
2315 };
2316
2317 let mut element = h_flex()
2318 .id(("diagnostic", row.0))
2319 .h(line_height)
2320 .w_full()
2321 .px_1()
2322 .rounded_xs()
2323 .opacity(opacity)
2324 .bg(severity_to_color(&diagnostic_to_render.severity)
2325 .color(cx)
2326 .opacity(0.05))
2327 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2328 .text_sm()
2329 .font_family(style.text.font().family)
2330 .child(diagnostic_to_render.message.clone())
2331 .into_any();
2332
2333 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2334
2335 elements.insert(row, element);
2336 }
2337
2338 elements
2339 }
2340
2341 fn layout_inline_code_actions(
2342 &self,
2343 display_point: DisplayPoint,
2344 content_origin: gpui::Point<Pixels>,
2345 scroll_position: gpui::Point<ScrollOffset>,
2346 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2347 line_height: Pixels,
2348 snapshot: &EditorSnapshot,
2349 window: &mut Window,
2350 cx: &mut App,
2351 ) -> Option<AnyElement> {
2352 if !snapshot
2353 .show_code_actions
2354 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2355 {
2356 return None;
2357 }
2358
2359 let icon_size = ui::IconSize::XSmall;
2360 let mut button = self.editor.update(cx, |editor, cx| {
2361 editor.available_code_actions.as_ref()?;
2362 let active = editor
2363 .context_menu
2364 .borrow()
2365 .as_ref()
2366 .and_then(|menu| {
2367 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2368 deployed_from,
2369 ..
2370 }) = menu
2371 {
2372 deployed_from.as_ref()
2373 } else {
2374 None
2375 }
2376 })
2377 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2378 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2379 })?;
2380
2381 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2382
2383 // do not show code action for folded line
2384 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2385 return None;
2386 }
2387
2388 // do not show code action for blank line with cursor
2389 let line_indent = snapshot
2390 .display_snapshot
2391 .buffer_snapshot()
2392 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2393 if line_indent.is_line_blank() {
2394 return None;
2395 }
2396
2397 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2398 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2399
2400 let excerpt_id = snapshot
2401 .display_snapshot
2402 .buffer_snapshot()
2403 .excerpt_containing(buffer_point..buffer_point)
2404 .map(|excerpt| excerpt.id());
2405
2406 let is_valid_row = |row_candidate: u32| -> bool {
2407 // move to other row if folded row
2408 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2409 return false;
2410 }
2411 if buffer_point.row == row_candidate {
2412 // move to other row if cursor is in slot
2413 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2414 return false;
2415 }
2416 } else {
2417 let candidate_point = MultiBufferPoint {
2418 row: row_candidate,
2419 column: 0,
2420 };
2421 let candidate_excerpt_id = snapshot
2422 .display_snapshot
2423 .buffer_snapshot()
2424 .excerpt_containing(candidate_point..candidate_point)
2425 .map(|excerpt| excerpt.id());
2426 // move to other row if different excerpt
2427 if excerpt_id != candidate_excerpt_id {
2428 return false;
2429 }
2430 }
2431 let line_indent = snapshot
2432 .display_snapshot
2433 .buffer_snapshot()
2434 .line_indent_for_row(MultiBufferRow(row_candidate));
2435 // use this row if it's blank
2436 if line_indent.is_line_blank() {
2437 true
2438 } else {
2439 // use this row if code starts after slot
2440 let indent_size = snapshot
2441 .display_snapshot
2442 .buffer_snapshot()
2443 .indent_size_for_line(MultiBufferRow(row_candidate));
2444 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2445 }
2446 };
2447
2448 let new_buffer_row = if is_valid_row(buffer_point.row) {
2449 Some(buffer_point.row)
2450 } else {
2451 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2452 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2453 let row_above = buffer_point.row.saturating_sub(offset);
2454 let row_below = buffer_point.row + offset;
2455 if row_above != buffer_point.row && is_valid_row(row_above) {
2456 Some(row_above)
2457 } else if row_below <= max_row && is_valid_row(row_below) {
2458 Some(row_below)
2459 } else {
2460 None
2461 }
2462 })
2463 }?;
2464
2465 let new_display_row = snapshot
2466 .display_snapshot
2467 .point_to_display_point(
2468 Point {
2469 row: new_buffer_row,
2470 column: buffer_point.column,
2471 },
2472 text::Bias::Left,
2473 )
2474 .row();
2475
2476 let start_y = content_origin.y
2477 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2478 + (line_height / 2.0)
2479 - (icon_size.square(window, cx) / 2.);
2480 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2481 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2482 .into();
2483
2484 let absolute_offset = gpui::point(start_x, start_y);
2485 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2486 button.prepaint_as_root(
2487 absolute_offset,
2488 gpui::AvailableSpace::min_size(),
2489 window,
2490 cx,
2491 );
2492 Some(button)
2493 }
2494
2495 fn layout_inline_blame(
2496 &self,
2497 display_row: DisplayRow,
2498 row_info: &RowInfo,
2499 line_layout: &LineWithInvisibles,
2500 crease_trailer: Option<&CreaseTrailerLayout>,
2501 em_width: Pixels,
2502 content_origin: gpui::Point<Pixels>,
2503 scroll_position: gpui::Point<ScrollOffset>,
2504 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2505 line_height: Pixels,
2506 text_hitbox: &Hitbox,
2507 window: &mut Window,
2508 cx: &mut App,
2509 ) -> Option<InlineBlameLayout> {
2510 if !self
2511 .editor
2512 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2513 {
2514 return None;
2515 }
2516
2517 let editor = self.editor.read(cx);
2518 let blame = editor.blame.clone()?;
2519 let padding = {
2520 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2521
2522 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2523
2524 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2525 && let EditPrediction::Edit {
2526 display_mode: EditDisplayMode::TabAccept,
2527 ..
2528 } = &edit_prediction.completion
2529 {
2530 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2531 }
2532
2533 padding * em_width
2534 };
2535
2536 let (buffer_id, entry) = blame
2537 .update(cx, |blame, cx| {
2538 blame.blame_for_rows(&[*row_info], cx).next()
2539 })
2540 .flatten()?;
2541
2542 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2543
2544 let start_y =
2545 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2546
2547 let start_x = {
2548 let line_end = if let Some(crease_trailer) = crease_trailer {
2549 crease_trailer.bounds.right()
2550 } else {
2551 Pixels::from(
2552 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2553 - scroll_pixel_position.x,
2554 )
2555 };
2556
2557 let padded_line_end = line_end + padding;
2558
2559 let min_column_in_pixels = self.column_pixels(
2560 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2561 window,
2562 );
2563 let min_start = Pixels::from(
2564 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2565 - scroll_pixel_position.x,
2566 );
2567
2568 cmp::max(padded_line_end, min_start)
2569 };
2570
2571 let absolute_offset = point(start_x, start_y);
2572 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2573 let bounds = Bounds::new(absolute_offset, size);
2574
2575 self.layout_blame_entry_popover(
2576 entry.clone(),
2577 blame,
2578 line_height,
2579 text_hitbox,
2580 row_info.buffer_id?,
2581 window,
2582 cx,
2583 );
2584
2585 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2586
2587 Some(InlineBlameLayout {
2588 element,
2589 bounds,
2590 buffer_id,
2591 entry,
2592 })
2593 }
2594
2595 fn layout_blame_entry_popover(
2596 &self,
2597 blame_entry: BlameEntry,
2598 blame: Entity<GitBlame>,
2599 line_height: Pixels,
2600 text_hitbox: &Hitbox,
2601 buffer: BufferId,
2602 window: &mut Window,
2603 cx: &mut App,
2604 ) {
2605 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2606 editor
2607 .inline_blame_popover
2608 .as_ref()
2609 .map(|state| (state.popover_state.clone(), state.position))
2610 }) else {
2611 return;
2612 };
2613
2614 let workspace = self
2615 .editor
2616 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2617
2618 let maybe_element = workspace.and_then(|workspace| {
2619 render_blame_entry_popover(
2620 blame_entry,
2621 popover_state.scroll_handle,
2622 popover_state.commit_message,
2623 popover_state.markdown,
2624 workspace,
2625 &blame,
2626 buffer,
2627 window,
2628 cx,
2629 )
2630 });
2631
2632 if let Some(mut element) = maybe_element {
2633 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2634 let overall_height = size.height + HOVER_POPOVER_GAP;
2635 let popover_origin = if target_point.y > overall_height {
2636 point(target_point.x, target_point.y - size.height)
2637 } else {
2638 point(
2639 target_point.x,
2640 target_point.y + line_height + HOVER_POPOVER_GAP,
2641 )
2642 };
2643
2644 let horizontal_offset = (text_hitbox.top_right().x
2645 - POPOVER_RIGHT_OFFSET
2646 - (popover_origin.x + size.width))
2647 .min(Pixels::ZERO);
2648
2649 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2650 let popover_bounds = Bounds::new(origin, size);
2651
2652 self.editor.update(cx, |editor, _| {
2653 if let Some(state) = &mut editor.inline_blame_popover {
2654 state.popover_bounds = Some(popover_bounds);
2655 }
2656 });
2657
2658 window.defer_draw(element, origin, 2);
2659 }
2660 }
2661
2662 fn layout_blame_entries(
2663 &self,
2664 buffer_rows: &[RowInfo],
2665 em_width: Pixels,
2666 scroll_position: gpui::Point<ScrollOffset>,
2667 line_height: Pixels,
2668 gutter_hitbox: &Hitbox,
2669 max_width: Option<Pixels>,
2670 window: &mut Window,
2671 cx: &mut App,
2672 ) -> Option<Vec<AnyElement>> {
2673 if !self
2674 .editor
2675 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2676 {
2677 return None;
2678 }
2679
2680 let blame = self.editor.read(cx).blame.clone()?;
2681 let workspace = self.editor.read(cx).workspace()?;
2682 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2683 blame.blame_for_rows(buffer_rows, cx).collect()
2684 });
2685
2686 let width = if let Some(max_width) = max_width {
2687 AvailableSpace::Definite(max_width)
2688 } else {
2689 AvailableSpace::MaxContent
2690 };
2691 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2692 let start_x = em_width;
2693
2694 let mut last_used_color: Option<(Hsla, Oid)> = None;
2695 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2696
2697 let shaped_lines = blamed_rows
2698 .into_iter()
2699 .enumerate()
2700 .flat_map(|(ix, blame_entry)| {
2701 let (buffer_id, blame_entry) = blame_entry?;
2702 let mut element = render_blame_entry(
2703 ix,
2704 &blame,
2705 blame_entry,
2706 &self.style,
2707 &mut last_used_color,
2708 self.editor.clone(),
2709 workspace.clone(),
2710 buffer_id,
2711 &*blame_renderer,
2712 window,
2713 cx,
2714 )?;
2715
2716 let start_y = ix as f32 * line_height
2717 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
2718 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2719
2720 element.prepaint_as_root(
2721 absolute_offset,
2722 size(width, AvailableSpace::MinContent),
2723 window,
2724 cx,
2725 );
2726
2727 Some(element)
2728 })
2729 .collect();
2730
2731 Some(shaped_lines)
2732 }
2733
2734 fn layout_indent_guides(
2735 &self,
2736 content_origin: gpui::Point<Pixels>,
2737 text_origin: gpui::Point<Pixels>,
2738 visible_buffer_range: Range<MultiBufferRow>,
2739 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2740 line_height: Pixels,
2741 snapshot: &DisplaySnapshot,
2742 window: &mut Window,
2743 cx: &mut App,
2744 ) -> Option<Vec<IndentGuideLayout>> {
2745 let indent_guides = self.editor.update(cx, |editor, cx| {
2746 editor.indent_guides(visible_buffer_range, snapshot, cx)
2747 })?;
2748
2749 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2750 editor
2751 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2752 .unwrap_or_default()
2753 });
2754
2755 Some(
2756 indent_guides
2757 .into_iter()
2758 .enumerate()
2759 .filter_map(|(i, indent_guide)| {
2760 let single_indent_width =
2761 self.column_pixels(indent_guide.tab_size as usize, window);
2762 let total_width = single_indent_width * indent_guide.depth as f32;
2763 let start_x = Pixels::from(
2764 ScrollOffset::from(content_origin.x + total_width)
2765 - scroll_pixel_position.x,
2766 );
2767 if start_x >= text_origin.x {
2768 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2769 indent_guide.start_row..indent_guide.end_row,
2770 line_height,
2771 snapshot,
2772 );
2773
2774 let start_y = Pixels::from(
2775 ScrollOffset::from(content_origin.y) + offset_y
2776 - scroll_pixel_position.y,
2777 );
2778
2779 Some(IndentGuideLayout {
2780 origin: point(start_x, start_y),
2781 length,
2782 single_indent_width,
2783 depth: indent_guide.depth,
2784 active: active_indent_guide_indices.contains(&i),
2785 settings: indent_guide.settings,
2786 })
2787 } else {
2788 None
2789 }
2790 })
2791 .collect(),
2792 )
2793 }
2794
2795 fn layout_wrap_guides(
2796 &self,
2797 em_advance: Pixels,
2798 scroll_position: gpui::Point<f64>,
2799 content_origin: gpui::Point<Pixels>,
2800 scrollbar_layout: Option<&EditorScrollbars>,
2801 vertical_scrollbar_width: Pixels,
2802 hitbox: &Hitbox,
2803 window: &Window,
2804 cx: &App,
2805 ) -> SmallVec<[(Pixels, bool); 2]> {
2806 let scroll_left = scroll_position.x as f32 * em_advance;
2807 let content_origin = content_origin.x;
2808 let horizontal_offset = content_origin - scroll_left;
2809 let vertical_scrollbar_width = scrollbar_layout
2810 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
2811 .unwrap_or_default();
2812
2813 self.editor
2814 .read(cx)
2815 .wrap_guides(cx)
2816 .into_iter()
2817 .flat_map(|(guide, active)| {
2818 let wrap_position = self.column_pixels(guide, window);
2819 let wrap_guide_x = wrap_position + horizontal_offset;
2820 let display_wrap_guide = wrap_guide_x >= content_origin
2821 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
2822
2823 display_wrap_guide.then_some((wrap_guide_x, active))
2824 })
2825 .collect()
2826 }
2827
2828 fn calculate_indent_guide_bounds(
2829 row_range: Range<MultiBufferRow>,
2830 line_height: Pixels,
2831 snapshot: &DisplaySnapshot,
2832 ) -> (f64, gpui::Pixels) {
2833 let start_point = Point::new(row_range.start.0, 0);
2834 let end_point = Point::new(row_range.end.0, 0);
2835
2836 let row_range = start_point.to_display_point(snapshot).row()
2837 ..end_point.to_display_point(snapshot).row();
2838
2839 let mut prev_line = start_point;
2840 prev_line.row = prev_line.row.saturating_sub(1);
2841 let prev_line = prev_line.to_display_point(snapshot).row();
2842
2843 let mut cons_line = end_point;
2844 cons_line.row += 1;
2845 let cons_line = cons_line.to_display_point(snapshot).row();
2846
2847 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
2848 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2849
2850 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2851 if row_range.end == cons_line {
2852 length += line_height;
2853 }
2854
2855 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2856 // we want to extend the indent guide to the start of the block.
2857 let mut block_height = 0;
2858 let mut block_offset = 0;
2859 let mut found_excerpt_header = false;
2860 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2861 if matches!(
2862 block,
2863 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2864 ) {
2865 found_excerpt_header = true;
2866 break;
2867 }
2868 block_offset += block.height();
2869 block_height += block.height();
2870 }
2871 if !found_excerpt_header {
2872 offset_y -= block_offset as f64 * f64::from(line_height);
2873 length += block_height as f32 * line_height;
2874 }
2875
2876 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2877 // we want to ensure that the indent guide stops before the excerpt header.
2878 let mut block_height = 0;
2879 let mut found_excerpt_header = false;
2880 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2881 if matches!(
2882 block,
2883 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2884 ) {
2885 found_excerpt_header = true;
2886 }
2887 block_height += block.height();
2888 }
2889 if found_excerpt_header {
2890 length -= block_height as f32 * line_height;
2891 }
2892
2893 (offset_y, length)
2894 }
2895
2896 fn layout_breakpoints(
2897 &self,
2898 line_height: Pixels,
2899 range: Range<DisplayRow>,
2900 scroll_position: gpui::Point<ScrollOffset>,
2901 gutter_dimensions: &GutterDimensions,
2902 gutter_hitbox: &Hitbox,
2903 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2904 snapshot: &EditorSnapshot,
2905 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2906 row_infos: &[RowInfo],
2907 window: &mut Window,
2908 cx: &mut App,
2909 ) -> Vec<AnyElement> {
2910 self.editor.update(cx, |editor, cx| {
2911 breakpoints
2912 .into_iter()
2913 .filter_map(|(display_row, (text_anchor, bp, state))| {
2914 if row_infos
2915 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2916 .is_some_and(|row_info| {
2917 row_info.expand_info.is_some()
2918 || row_info
2919 .diff_status
2920 .is_some_and(|status| status.is_deleted())
2921 })
2922 {
2923 return None;
2924 }
2925
2926 if range.start > display_row || range.end < display_row {
2927 return None;
2928 }
2929
2930 let row =
2931 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
2932 if snapshot.is_line_folded(row) {
2933 return None;
2934 }
2935
2936 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
2937
2938 let button = prepaint_gutter_button(
2939 button,
2940 display_row,
2941 line_height,
2942 gutter_dimensions,
2943 scroll_position,
2944 gutter_hitbox,
2945 display_hunks,
2946 window,
2947 cx,
2948 );
2949 Some(button)
2950 })
2951 .collect_vec()
2952 })
2953 }
2954
2955 #[allow(clippy::too_many_arguments)]
2956 fn layout_run_indicators(
2957 &self,
2958 line_height: Pixels,
2959 range: Range<DisplayRow>,
2960 row_infos: &[RowInfo],
2961 scroll_position: gpui::Point<ScrollOffset>,
2962 gutter_dimensions: &GutterDimensions,
2963 gutter_hitbox: &Hitbox,
2964 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2965 snapshot: &EditorSnapshot,
2966 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2967 window: &mut Window,
2968 cx: &mut App,
2969 ) -> Vec<AnyElement> {
2970 self.editor.update(cx, |editor, cx| {
2971 let active_task_indicator_row =
2972 // TODO: add edit button on the right side of each row in the context menu
2973 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2974 deployed_from,
2975 actions,
2976 ..
2977 })) = editor.context_menu.borrow().as_ref()
2978 {
2979 actions
2980 .tasks()
2981 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2982 .or_else(|| match deployed_from {
2983 Some(CodeActionSource::Indicator(row)) => Some(*row),
2984 _ => None,
2985 })
2986 } else {
2987 None
2988 };
2989
2990 let offset_range_start =
2991 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2992
2993 let offset_range_end =
2994 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2995
2996 editor
2997 .tasks
2998 .iter()
2999 .filter_map(|(_, tasks)| {
3000 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot());
3001 if multibuffer_point < offset_range_start
3002 || multibuffer_point > offset_range_end
3003 {
3004 return None;
3005 }
3006 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
3007 let buffer_folded = snapshot
3008 .buffer_snapshot()
3009 .buffer_line_for_row(multibuffer_row)
3010 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
3011 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
3012 .unwrap_or(false);
3013 if buffer_folded {
3014 return None;
3015 }
3016
3017 if snapshot.is_line_folded(multibuffer_row) {
3018 // Skip folded indicators, unless it's the starting line of a fold.
3019 if multibuffer_row
3020 .0
3021 .checked_sub(1)
3022 .is_some_and(|previous_row| {
3023 snapshot.is_line_folded(MultiBufferRow(previous_row))
3024 })
3025 {
3026 return None;
3027 }
3028 }
3029
3030 let display_row = multibuffer_point.to_display_point(snapshot).row();
3031 if !range.contains(&display_row) {
3032 return None;
3033 }
3034 if row_infos
3035 .get((display_row - range.start).0 as usize)
3036 .is_some_and(|row_info| row_info.expand_info.is_some())
3037 {
3038 return None;
3039 }
3040
3041 let button = editor.render_run_indicator(
3042 &self.style,
3043 Some(display_row) == active_task_indicator_row,
3044 display_row,
3045 breakpoints.remove(&display_row),
3046 cx,
3047 );
3048
3049 let button = prepaint_gutter_button(
3050 button,
3051 display_row,
3052 line_height,
3053 gutter_dimensions,
3054 scroll_position,
3055 gutter_hitbox,
3056 display_hunks,
3057 window,
3058 cx,
3059 );
3060 Some(button)
3061 })
3062 .collect_vec()
3063 })
3064 }
3065
3066 fn layout_expand_toggles(
3067 &self,
3068 gutter_hitbox: &Hitbox,
3069 gutter_dimensions: GutterDimensions,
3070 em_width: Pixels,
3071 line_height: Pixels,
3072 scroll_position: gpui::Point<ScrollOffset>,
3073 buffer_rows: &[RowInfo],
3074 window: &mut Window,
3075 cx: &mut App,
3076 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3077 if self.editor.read(cx).disable_expand_excerpt_buttons {
3078 return vec![];
3079 }
3080
3081 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3082
3083 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3084
3085 let max_line_number_length = self
3086 .editor
3087 .read(cx)
3088 .buffer()
3089 .read(cx)
3090 .snapshot(cx)
3091 .widest_line_number()
3092 .ilog10()
3093 + 1;
3094
3095 let git_gutter_width = Self::gutter_strip_width(line_height)
3096 + gutter_dimensions
3097 .git_blame_entries_width
3098 .unwrap_or_default();
3099 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3100
3101 buffer_rows
3102 .iter()
3103 .enumerate()
3104 .map(|(ix, row_info)| {
3105 let ExpandInfo {
3106 excerpt_id,
3107 direction,
3108 } = row_info.expand_info?;
3109
3110 let icon_name = match direction {
3111 ExpandExcerptDirection::Up => IconName::ExpandUp,
3112 ExpandExcerptDirection::Down => IconName::ExpandDown,
3113 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3114 };
3115
3116 let editor = self.editor.clone();
3117 let is_wide = max_line_number_length
3118 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3119 && row_info
3120 .buffer_row
3121 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3122 || gutter_dimensions.right_padding == px(0.);
3123
3124 let width = if is_wide {
3125 available_width - px(2.)
3126 } else {
3127 available_width + em_width - px(2.)
3128 };
3129
3130 let toggle = IconButton::new(("expand", ix), icon_name)
3131 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3132 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
3133 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3134 .width(width)
3135 .on_click(move |_, window, cx| {
3136 editor.update(cx, |editor, cx| {
3137 editor.expand_excerpt(excerpt_id, direction, window, cx);
3138 });
3139 })
3140 .tooltip(Tooltip::for_action_title(
3141 "Expand Excerpt",
3142 &crate::actions::ExpandExcerpts::default(),
3143 ))
3144 .into_any_element();
3145
3146 let position = point(
3147 git_gutter_width + px(1.),
3148 ix as f32 * line_height
3149 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3150 + px(1.),
3151 );
3152 let origin = gutter_hitbox.origin + position;
3153
3154 Some((toggle, origin))
3155 })
3156 .collect()
3157 }
3158
3159 fn calculate_relative_line_numbers(
3160 &self,
3161 snapshot: &EditorSnapshot,
3162 rows: &Range<DisplayRow>,
3163 relative_to: Option<DisplayRow>,
3164 count_wrapped_lines: bool,
3165 ) -> HashMap<DisplayRow, DisplayRowDelta> {
3166 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
3167 let Some(relative_to) = relative_to else {
3168 return relative_rows;
3169 };
3170
3171 let start = rows.start.min(relative_to);
3172 let end = rows.end.max(relative_to);
3173
3174 let buffer_rows = snapshot
3175 .row_infos(start)
3176 .take(1 + end.minus(start) as usize)
3177 .collect::<Vec<_>>();
3178
3179 let head_idx = relative_to.minus(start);
3180 let mut delta = 1;
3181 let mut i = head_idx + 1;
3182 let should_count_line = |row_info: &RowInfo| {
3183 if count_wrapped_lines {
3184 row_info.buffer_row.is_some() || row_info.wrapped_buffer_row.is_some()
3185 } else {
3186 row_info.buffer_row.is_some()
3187 }
3188 };
3189 while i < buffer_rows.len() as u32 {
3190 if should_count_line(&buffer_rows[i as usize]) {
3191 if rows.contains(&DisplayRow(i + start.0)) {
3192 relative_rows.insert(DisplayRow(i + start.0), delta);
3193 }
3194 delta += 1;
3195 }
3196 i += 1;
3197 }
3198 delta = 1;
3199 i = head_idx.min(buffer_rows.len().saturating_sub(1) as u32);
3200 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() && !count_wrapped_lines {
3201 i -= 1;
3202 }
3203
3204 while i > 0 {
3205 i -= 1;
3206 if should_count_line(&buffer_rows[i as usize]) {
3207 if rows.contains(&DisplayRow(i + start.0)) {
3208 relative_rows.insert(DisplayRow(i + start.0), delta);
3209 }
3210 delta += 1;
3211 }
3212 }
3213
3214 relative_rows
3215 }
3216
3217 fn layout_line_numbers(
3218 &self,
3219 gutter_hitbox: Option<&Hitbox>,
3220 gutter_dimensions: GutterDimensions,
3221 line_height: Pixels,
3222 scroll_position: gpui::Point<ScrollOffset>,
3223 rows: Range<DisplayRow>,
3224 buffer_rows: &[RowInfo],
3225 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3226 newest_selection_head: Option<DisplayPoint>,
3227 snapshot: &EditorSnapshot,
3228 window: &mut Window,
3229 cx: &mut App,
3230 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3231 let include_line_numbers = snapshot
3232 .show_line_numbers
3233 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3234 if !include_line_numbers {
3235 return Arc::default();
3236 }
3237
3238 let (newest_selection_head, relative) = self.editor.update(cx, |editor, cx| {
3239 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
3240 let newest = editor
3241 .selections
3242 .newest::<Point>(&editor.display_snapshot(cx));
3243 SelectionLayout::new(
3244 newest,
3245 editor.selections.line_mode(),
3246 editor.cursor_shape,
3247 &snapshot.display_snapshot,
3248 true,
3249 true,
3250 None,
3251 )
3252 .head
3253 });
3254 let relative = editor.relative_line_numbers(cx);
3255 (newest_selection_head, relative)
3256 });
3257
3258 let relative_line_numbers_enabled = relative.enabled();
3259 let relative_to = relative_line_numbers_enabled.then(|| newest_selection_head.row());
3260
3261 let relative_rows =
3262 self.calculate_relative_line_numbers(snapshot, &rows, relative_to, relative.wrapped());
3263 let mut line_number = String::new();
3264 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3265 let display_row = DisplayRow(rows.start.0 + ix as u32);
3266 line_number.clear();
3267 let non_relative_number = if relative.wrapped() {
3268 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3269 } else {
3270 row_info.buffer_row? + 1
3271 };
3272 let relative_number = relative_rows.get(&display_row);
3273 if !(relative_line_numbers_enabled && relative_number.is_some())
3274 && row_info
3275 .diff_status
3276 .is_some_and(|status| status.is_deleted())
3277 {
3278 return None;
3279 }
3280
3281 let number = relative_number.unwrap_or(&non_relative_number);
3282 write!(&mut line_number, "{number}").unwrap();
3283
3284 let color = active_rows
3285 .get(&display_row)
3286 .map(|spec| {
3287 if spec.breakpoint {
3288 cx.theme().colors().debugger_accent
3289 } else {
3290 cx.theme().colors().editor_active_line_number
3291 }
3292 })
3293 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3294 let shaped_line =
3295 self.shape_line_number(SharedString::from(&line_number), color, window);
3296 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3297 let line_origin = gutter_hitbox.map(|hitbox| {
3298 hitbox.origin
3299 + point(
3300 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3301 ix as f32 * line_height
3302 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3303 )
3304 });
3305
3306 #[cfg(not(test))]
3307 let hitbox = line_origin.map(|line_origin| {
3308 window.insert_hitbox(
3309 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3310 HitboxBehavior::Normal,
3311 )
3312 });
3313 #[cfg(test)]
3314 let hitbox = {
3315 let _ = line_origin;
3316 None
3317 };
3318
3319 let segment = LineNumberSegment {
3320 shaped_line,
3321 hitbox,
3322 };
3323
3324 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3325 let multi_buffer_row = MultiBufferRow(buffer_row);
3326
3327 Some((multi_buffer_row, segment))
3328 });
3329
3330 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3331 for (buffer_row, segment) in segments {
3332 line_numbers
3333 .entry(buffer_row)
3334 .or_insert_with(|| LineNumberLayout {
3335 segments: Default::default(),
3336 })
3337 .segments
3338 .push(segment);
3339 }
3340 Arc::new(line_numbers)
3341 }
3342
3343 fn layout_crease_toggles(
3344 &self,
3345 rows: Range<DisplayRow>,
3346 row_infos: &[RowInfo],
3347 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3348 snapshot: &EditorSnapshot,
3349 window: &mut Window,
3350 cx: &mut App,
3351 ) -> Vec<Option<AnyElement>> {
3352 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3353 && snapshot.mode.is_full()
3354 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3355 if include_fold_statuses {
3356 row_infos
3357 .iter()
3358 .enumerate()
3359 .map(|(ix, info)| {
3360 if info.expand_info.is_some() {
3361 return None;
3362 }
3363 let row = info.multibuffer_row?;
3364 let display_row = DisplayRow(rows.start.0 + ix as u32);
3365 let active = active_rows.contains_key(&display_row);
3366
3367 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3368 })
3369 .collect()
3370 } else {
3371 Vec::new()
3372 }
3373 }
3374
3375 fn layout_crease_trailers(
3376 &self,
3377 buffer_rows: impl IntoIterator<Item = RowInfo>,
3378 snapshot: &EditorSnapshot,
3379 window: &mut Window,
3380 cx: &mut App,
3381 ) -> Vec<Option<AnyElement>> {
3382 buffer_rows
3383 .into_iter()
3384 .map(|row_info| {
3385 if row_info.expand_info.is_some() {
3386 return None;
3387 }
3388 if let Some(row) = row_info.multibuffer_row {
3389 snapshot.render_crease_trailer(row, window, cx)
3390 } else {
3391 None
3392 }
3393 })
3394 .collect()
3395 }
3396
3397 fn bg_segments_per_row(
3398 rows: Range<DisplayRow>,
3399 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3400 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3401 base_background: Hsla,
3402 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3403 if rows.start >= rows.end {
3404 return Vec::new();
3405 }
3406 if !base_background.is_opaque() {
3407 // We don't actually know what color is behind this editor.
3408 return Vec::new();
3409 }
3410 let highlight_iter = highlight_ranges.iter().cloned();
3411 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3412 let color = player_color.selection;
3413 layouts.iter().filter_map(move |selection_layout| {
3414 if selection_layout.range.start != selection_layout.range.end {
3415 Some((selection_layout.range.clone(), color))
3416 } else {
3417 None
3418 }
3419 })
3420 });
3421 let mut per_row_map = vec![Vec::new(); rows.len()];
3422 for (range, color) in highlight_iter.chain(selection_iter) {
3423 let covered_rows = if range.end.column() == 0 {
3424 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3425 } else {
3426 cmp::max(range.start.row(), rows.start)
3427 ..cmp::min(range.end.row().next_row(), rows.end)
3428 };
3429 for row in covered_rows.iter_rows() {
3430 let seg_start = if row == range.start.row() {
3431 range.start
3432 } else {
3433 DisplayPoint::new(row, 0)
3434 };
3435 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3436 range.end
3437 } else {
3438 DisplayPoint::new(row, u32::MAX)
3439 };
3440 let ix = row.minus(rows.start) as usize;
3441 debug_assert!(row >= rows.start && row < rows.end);
3442 debug_assert!(ix < per_row_map.len());
3443 per_row_map[ix].push((seg_start..seg_end, color));
3444 }
3445 }
3446 for row_segments in per_row_map.iter_mut() {
3447 if row_segments.is_empty() {
3448 continue;
3449 }
3450 let segments = mem::take(row_segments);
3451 let merged = Self::merge_overlapping_ranges(segments, base_background);
3452 *row_segments = merged;
3453 }
3454 per_row_map
3455 }
3456
3457 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3458 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3459 ///
3460 /// Expects `start.row() == end.row()` for each range.
3461 fn merge_overlapping_ranges(
3462 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3463 base_background: Hsla,
3464 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3465 struct Boundary {
3466 pos: DisplayPoint,
3467 is_start: bool,
3468 index: usize,
3469 color: Hsla,
3470 }
3471
3472 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3473 for (index, (range, color)) in ranges.iter().enumerate() {
3474 debug_assert!(
3475 range.start.row() == range.end.row(),
3476 "expects single-row ranges"
3477 );
3478 if range.start < range.end {
3479 boundaries.push(Boundary {
3480 pos: range.start,
3481 is_start: true,
3482 index,
3483 color: *color,
3484 });
3485 boundaries.push(Boundary {
3486 pos: range.end,
3487 is_start: false,
3488 index,
3489 color: *color,
3490 });
3491 }
3492 }
3493
3494 if boundaries.is_empty() {
3495 return Vec::new();
3496 }
3497
3498 boundaries
3499 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3500
3501 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3502 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3503
3504 let mut i = 0;
3505 let mut start_pos = boundaries[0].pos;
3506
3507 let boundaries_len = boundaries.len();
3508 while i < boundaries_len {
3509 let current_boundary_pos = boundaries[i].pos;
3510 if start_pos < current_boundary_pos {
3511 if !active_ranges.is_empty() {
3512 let mut color = base_background;
3513 for &(_, c) in &active_ranges {
3514 color = Hsla::blend(color, c);
3515 }
3516 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3517 if *last_color == color && last_range.end == start_pos {
3518 last_range.end = current_boundary_pos;
3519 } else {
3520 processed_ranges.push((start_pos..current_boundary_pos, color));
3521 }
3522 } else {
3523 processed_ranges.push((start_pos..current_boundary_pos, color));
3524 }
3525 }
3526 }
3527 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3528 let active_range = &boundaries[i];
3529 if active_range.is_start {
3530 let idx = active_range.index;
3531 let pos = active_ranges
3532 .binary_search_by_key(&idx, |(i, _)| *i)
3533 .unwrap_or_else(|p| p);
3534 active_ranges.insert(pos, (idx, active_range.color));
3535 } else {
3536 let idx = active_range.index;
3537 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3538 active_ranges.remove(pos);
3539 }
3540 }
3541 i += 1;
3542 }
3543 start_pos = current_boundary_pos;
3544 }
3545
3546 processed_ranges
3547 }
3548
3549 fn layout_lines(
3550 rows: Range<DisplayRow>,
3551 snapshot: &EditorSnapshot,
3552 style: &EditorStyle,
3553 editor_width: Pixels,
3554 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3555 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3556 window: &mut Window,
3557 cx: &mut App,
3558 ) -> Vec<LineWithInvisibles> {
3559 if rows.start >= rows.end {
3560 return Vec::new();
3561 }
3562
3563 // Show the placeholder when the editor is empty
3564 if snapshot.is_empty() {
3565 let font_size = style.text.font_size.to_pixels(window.rem_size());
3566 let placeholder_color = cx.theme().colors().text_placeholder;
3567 let placeholder_text = snapshot.placeholder_text();
3568
3569 let placeholder_lines = placeholder_text
3570 .as_ref()
3571 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3572
3573 let placeholder_line_count = placeholder_lines.len();
3574
3575 placeholder_lines
3576 .into_iter()
3577 .skip(rows.start.0 as usize)
3578 .chain(iter::repeat(""))
3579 .take(cmp::max(rows.len(), placeholder_line_count))
3580 .map(move |line| {
3581 let run = TextRun {
3582 len: line.len(),
3583 font: style.text.font(),
3584 color: placeholder_color,
3585 ..Default::default()
3586 };
3587 let line = window.text_system().shape_line(
3588 line.to_string().into(),
3589 font_size,
3590 &[run],
3591 None,
3592 );
3593 LineWithInvisibles {
3594 width: line.width,
3595 len: line.len,
3596 fragments: smallvec![LineFragment::Text(line)],
3597 invisibles: Vec::new(),
3598 font_size,
3599 }
3600 })
3601 .collect()
3602 } else {
3603 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3604 LineWithInvisibles::from_chunks(
3605 chunks,
3606 style,
3607 MAX_LINE_LEN,
3608 rows.len(),
3609 &snapshot.mode,
3610 editor_width,
3611 is_row_soft_wrapped,
3612 bg_segments_per_row,
3613 window,
3614 cx,
3615 )
3616 }
3617 }
3618
3619 fn prepaint_lines(
3620 &self,
3621 start_row: DisplayRow,
3622 line_layouts: &mut [LineWithInvisibles],
3623 line_height: Pixels,
3624 scroll_position: gpui::Point<ScrollOffset>,
3625 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3626 content_origin: gpui::Point<Pixels>,
3627 window: &mut Window,
3628 cx: &mut App,
3629 ) -> SmallVec<[AnyElement; 1]> {
3630 let mut line_elements = SmallVec::new();
3631 for (ix, line) in line_layouts.iter_mut().enumerate() {
3632 let row = start_row + DisplayRow(ix as u32);
3633 line.prepaint(
3634 line_height,
3635 scroll_position,
3636 scroll_pixel_position,
3637 row,
3638 content_origin,
3639 &mut line_elements,
3640 window,
3641 cx,
3642 );
3643 }
3644 line_elements
3645 }
3646
3647 fn render_block(
3648 &self,
3649 block: &Block,
3650 available_width: AvailableSpace,
3651 block_id: BlockId,
3652 block_row_start: DisplayRow,
3653 snapshot: &EditorSnapshot,
3654 text_x: Pixels,
3655 rows: &Range<DisplayRow>,
3656 line_layouts: &[LineWithInvisibles],
3657 editor_margins: &EditorMargins,
3658 line_height: Pixels,
3659 em_width: Pixels,
3660 text_hitbox: &Hitbox,
3661 editor_width: Pixels,
3662 scroll_width: &mut Pixels,
3663 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3664 row_block_types: &mut HashMap<DisplayRow, bool>,
3665 selections: &[Selection<Point>],
3666 selected_buffer_ids: &Vec<BufferId>,
3667 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3668 sticky_header_excerpt_id: Option<ExcerptId>,
3669 window: &mut Window,
3670 cx: &mut App,
3671 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3672 let mut x_position = None;
3673 let mut element = match block {
3674 Block::Custom(custom) => {
3675 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3676 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3677 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3678 return None;
3679 }
3680 let align_to = block_start.to_display_point(snapshot);
3681 let x_and_width = |layout: &LineWithInvisibles| {
3682 Some((
3683 text_x + layout.x_for_index(align_to.column() as usize),
3684 text_x + layout.width,
3685 ))
3686 };
3687 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3688 x_position =
3689 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3690 x_and_width(layout)
3691 } else {
3692 x_and_width(&layout_line(
3693 align_to.row(),
3694 snapshot,
3695 &self.style,
3696 editor_width,
3697 is_row_soft_wrapped,
3698 window,
3699 cx,
3700 ))
3701 };
3702
3703 let anchor_x = x_position.unwrap().0;
3704
3705 let selected = selections
3706 .binary_search_by(|selection| {
3707 if selection.end <= block_start {
3708 Ordering::Less
3709 } else if selection.start >= block_end {
3710 Ordering::Greater
3711 } else {
3712 Ordering::Equal
3713 }
3714 })
3715 .is_ok();
3716
3717 div()
3718 .size_full()
3719 .child(custom.render(&mut BlockContext {
3720 window,
3721 app: cx,
3722 anchor_x,
3723 margins: editor_margins,
3724 line_height,
3725 em_width,
3726 block_id,
3727 selected,
3728 max_width: text_hitbox.size.width.max(*scroll_width),
3729 editor_style: &self.style,
3730 }))
3731 .into_any()
3732 }
3733
3734 Block::FoldedBuffer {
3735 first_excerpt,
3736 height,
3737 ..
3738 } => {
3739 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3740 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3741
3742 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3743 result
3744 .child(self.render_buffer_header(
3745 first_excerpt,
3746 true,
3747 selected,
3748 false,
3749 jump_data,
3750 window,
3751 cx,
3752 ))
3753 .into_any_element()
3754 }
3755
3756 Block::ExcerptBoundary { .. } => {
3757 let color = cx.theme().colors().clone();
3758 let mut result = v_flex().id(block_id).w_full();
3759
3760 result = result.child(
3761 h_flex().relative().child(
3762 div()
3763 .top(line_height / 2.)
3764 .absolute()
3765 .w_full()
3766 .h_px()
3767 .bg(color.border_variant),
3768 ),
3769 );
3770
3771 result.into_any()
3772 }
3773
3774 Block::BufferHeader { excerpt, height } => {
3775 let mut result = v_flex().id(block_id).w_full();
3776
3777 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3778
3779 if sticky_header_excerpt_id != Some(excerpt.id) {
3780 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3781
3782 result = result.child(div().pr(editor_margins.right).child(
3783 self.render_buffer_header(
3784 excerpt, false, selected, false, jump_data, window, cx,
3785 ),
3786 ));
3787 } else {
3788 result =
3789 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3790 }
3791
3792 result.into_any()
3793 }
3794 };
3795
3796 // Discover the element's content height, then round up to the nearest multiple of line height.
3797 let preliminary_size = element.layout_as_root(
3798 size(available_width, AvailableSpace::MinContent),
3799 window,
3800 cx,
3801 );
3802 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3803 let final_size = if preliminary_size.height == quantized_height {
3804 preliminary_size
3805 } else {
3806 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3807 };
3808 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3809
3810 let mut row = block_row_start;
3811 let mut x_offset = px(0.);
3812 let mut is_block = true;
3813
3814 if let BlockId::Custom(custom_block_id) = block_id
3815 && block.has_height()
3816 {
3817 if block.place_near()
3818 && let Some((x_target, line_width)) = x_position
3819 {
3820 let margin = em_width * 2;
3821 if line_width + final_size.width + margin
3822 < editor_width + editor_margins.gutter.full_width()
3823 && !row_block_types.contains_key(&(row - 1))
3824 && element_height_in_lines == 1
3825 {
3826 x_offset = line_width + margin;
3827 row = row - 1;
3828 is_block = false;
3829 element_height_in_lines = 0;
3830 row_block_types.insert(row, is_block);
3831 } else {
3832 let max_offset =
3833 editor_width + editor_margins.gutter.full_width() - final_size.width;
3834 let min_offset = (x_target + em_width - final_size.width)
3835 .max(editor_margins.gutter.full_width());
3836 x_offset = x_target.min(max_offset).max(min_offset);
3837 }
3838 };
3839 if element_height_in_lines != block.height() {
3840 resized_blocks.insert(custom_block_id, element_height_in_lines);
3841 }
3842 }
3843 for i in 0..element_height_in_lines {
3844 row_block_types.insert(row + i, is_block);
3845 }
3846
3847 Some((element, final_size, row, x_offset))
3848 }
3849
3850 fn render_buffer_header(
3851 &self,
3852 for_excerpt: &ExcerptInfo,
3853 is_folded: bool,
3854 is_selected: bool,
3855 is_sticky: bool,
3856 jump_data: JumpData,
3857 window: &mut Window,
3858 cx: &mut App,
3859 ) -> impl IntoElement {
3860 let editor = self.editor.read(cx);
3861 let multi_buffer = editor.buffer.read(cx);
3862 let file_status = multi_buffer
3863 .all_diff_hunks_expanded()
3864 .then(|| editor.status_for_buffer_id(for_excerpt.buffer_id, cx))
3865 .flatten();
3866 let indicator = multi_buffer
3867 .buffer(for_excerpt.buffer_id)
3868 .and_then(|buffer| {
3869 let buffer = buffer.read(cx);
3870 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
3871 (true, _) => Some(Color::Warning),
3872 (_, true) => Some(Color::Accent),
3873 (false, false) => None,
3874 };
3875 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
3876 });
3877
3878 let include_root = editor
3879 .project
3880 .as_ref()
3881 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3882 .unwrap_or_default();
3883 let file = for_excerpt.buffer.file();
3884 let can_open_excerpts = Editor::can_open_excerpts_in_file(file);
3885 let path_style = file.map(|file| file.path_style(cx));
3886 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
3887 let (parent_path, filename) = if let Some(path) = &relative_path {
3888 if let Some(path_style) = path_style {
3889 let (dir, file_name) = path_style.split(path);
3890 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
3891 } else {
3892 (None, Some(path.clone()))
3893 }
3894 } else {
3895 (None, None)
3896 };
3897 let focus_handle = editor.focus_handle(cx);
3898 let colors = cx.theme().colors();
3899
3900 let header = div()
3901 .p_1()
3902 .w_full()
3903 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3904 .child(
3905 h_flex()
3906 .size_full()
3907 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3908 .pl_1()
3909 .pr_2()
3910 .rounded_sm()
3911 .gap_1p5()
3912 .when(is_sticky, |el| el.shadow_md())
3913 .border_1()
3914 .map(|div| {
3915 let border_color = if is_selected
3916 && is_folded
3917 && focus_handle.contains_focused(window, cx)
3918 {
3919 colors.border_focused
3920 } else {
3921 colors.border
3922 };
3923 div.border_color(border_color)
3924 })
3925 .bg(colors.editor_subheader_background)
3926 .hover(|style| style.bg(colors.element_hover))
3927 .map(|header| {
3928 let editor = self.editor.clone();
3929 let buffer_id = for_excerpt.buffer_id;
3930 let toggle_chevron_icon =
3931 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3932 let button_size = rems_from_px(28.);
3933
3934 header.child(
3935 div()
3936 .hover(|style| style.bg(colors.element_selected))
3937 .rounded_xs()
3938 .child(
3939 ButtonLike::new("toggle-buffer-fold")
3940 .style(ButtonStyle::Transparent)
3941 .height(button_size.into())
3942 .width(button_size)
3943 .children(toggle_chevron_icon)
3944 .tooltip({
3945 let focus_handle = focus_handle.clone();
3946 move |_window, cx| {
3947 Tooltip::with_meta_in(
3948 "Toggle Excerpt Fold",
3949 Some(&ToggleFold),
3950 format!(
3951 "{} to toggle all",
3952 text_for_keystroke(
3953 &Modifiers::alt(),
3954 "click",
3955 cx
3956 )
3957 ),
3958 &focus_handle,
3959 cx,
3960 )
3961 }
3962 })
3963 .on_click(move |event, window, cx| {
3964 if event.modifiers().alt {
3965 // Alt+click toggles all buffers
3966 editor.update(cx, |editor, cx| {
3967 editor.toggle_fold_all(
3968 &ToggleFoldAll,
3969 window,
3970 cx,
3971 );
3972 });
3973 } else {
3974 // Regular click toggles single buffer
3975 if is_folded {
3976 editor.update(cx, |editor, cx| {
3977 editor.unfold_buffer(buffer_id, cx);
3978 });
3979 } else {
3980 editor.update(cx, |editor, cx| {
3981 editor.fold_buffer(buffer_id, cx);
3982 });
3983 }
3984 }
3985 }),
3986 ),
3987 )
3988 })
3989 .children(
3990 editor
3991 .addons
3992 .values()
3993 .filter_map(|addon| {
3994 addon.render_buffer_header_controls(for_excerpt, window, cx)
3995 })
3996 .take(1),
3997 )
3998 .child(
3999 h_flex()
4000 .size(rems_from_px(12.0))
4001 .justify_center()
4002 .flex_shrink_0()
4003 .children(indicator),
4004 )
4005 .child(
4006 h_flex()
4007 .cursor_pointer()
4008 .id("path header block")
4009 .size_full()
4010 .justify_between()
4011 .overflow_hidden()
4012 .child(h_flex().gap_0p5().map(|path_header| {
4013 let filename = filename
4014 .map(SharedString::from)
4015 .unwrap_or_else(|| "untitled".into());
4016
4017 path_header
4018 .when(ItemSettings::get_global(cx).file_icons, |el| {
4019 let path = path::Path::new(filename.as_str());
4020 let icon =
4021 FileIcons::get_icon(path, cx).unwrap_or_default();
4022 let icon = Icon::from_path(icon).color(Color::Muted);
4023 el.child(icon)
4024 })
4025 .child(
4026 ButtonLike::new("filename-button")
4027 .style(ButtonStyle::Subtle)
4028 .child(
4029 div()
4030 .child(
4031 Label::new(filename)
4032 .single_line()
4033 .color(file_status_label_color(
4034 file_status,
4035 ))
4036 .when(
4037 file_status.is_some_and(|s| {
4038 s.is_deleted()
4039 }),
4040 |label| label.strikethrough(),
4041 ),
4042 )
4043 .group_hover("", |div| div.underline()),
4044 )
4045 .on_click({
4046 let focus_handle = focus_handle.clone();
4047 move |event, window, cx| {
4048 if event.modifiers().secondary() {
4049 focus_handle.dispatch_action(
4050 &OpenExcerptsSplit,
4051 window,
4052 cx,
4053 );
4054 } else {
4055 focus_handle.dispatch_action(
4056 &OpenExcerpts,
4057 window,
4058 cx,
4059 );
4060 }
4061 }
4062 }),
4063 )
4064 .when_some(parent_path, |then, path| {
4065 then.child(div().child(path).text_color(
4066 if file_status.is_some_and(FileStatus::is_deleted) {
4067 colors.text_disabled
4068 } else {
4069 colors.text_muted
4070 },
4071 ))
4072 })
4073 }))
4074 .when(
4075 can_open_excerpts && is_selected && relative_path.is_some(),
4076 |el| {
4077 el.child(
4078 ButtonLike::new("open-file-button")
4079 .style(ButtonStyle::OutlinedGhost)
4080 .child(
4081 h_flex()
4082 .gap_2p5()
4083 .child(Label::new("Open file"))
4084 .child(KeyBinding::for_action_in(
4085 &OpenExcerpts,
4086 &focus_handle,
4087 cx,
4088 )),
4089 )
4090 .on_click({
4091 let focus_handle = focus_handle.clone();
4092 move |event, window, cx| {
4093 if event.modifiers().secondary() {
4094 focus_handle.dispatch_action(
4095 &OpenExcerptsSplit,
4096 window,
4097 cx,
4098 );
4099 } else {
4100 focus_handle.dispatch_action(
4101 &OpenExcerpts,
4102 window,
4103 cx,
4104 );
4105 }
4106 }
4107 }),
4108 )
4109 },
4110 )
4111 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
4112 .on_click(window.listener_for(&self.editor, {
4113 let buffer_id = for_excerpt.buffer_id;
4114 move |editor, e: &ClickEvent, window, cx| {
4115 if e.modifiers().alt {
4116 editor.open_excerpts_common(
4117 Some(jump_data.clone()),
4118 e.modifiers().secondary(),
4119 window,
4120 cx,
4121 );
4122 return;
4123 }
4124
4125 if is_folded {
4126 editor.unfold_buffer(buffer_id, cx);
4127 } else {
4128 editor.fold_buffer(buffer_id, cx);
4129 }
4130 }
4131 })),
4132 ),
4133 );
4134
4135 let file = for_excerpt.buffer.file().cloned();
4136 let editor = self.editor.clone();
4137
4138 right_click_menu("buffer-header-context-menu")
4139 .trigger(move |_, _, _| header)
4140 .menu(move |window, cx| {
4141 let menu_context = focus_handle.clone();
4142 let editor = editor.clone();
4143 let file = file.clone();
4144 ContextMenu::build(window, cx, move |mut menu, window, cx| {
4145 if let Some(file) = file
4146 && let Some(project) = editor.read(cx).project()
4147 && let Some(worktree) =
4148 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
4149 {
4150 let path_style = file.path_style(cx);
4151 let worktree = worktree.read(cx);
4152 let relative_path = file.path();
4153 let entry_for_path = worktree.entry_for_path(relative_path);
4154 let abs_path = entry_for_path.map(|e| {
4155 e.canonical_path.as_deref().map_or_else(
4156 || worktree.absolutize(relative_path),
4157 Path::to_path_buf,
4158 )
4159 });
4160 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4161
4162 let parent_abs_path = abs_path
4163 .as_ref()
4164 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4165 let relative_path = has_relative_path
4166 .then_some(relative_path)
4167 .map(ToOwned::to_owned);
4168
4169 let visible_in_project_panel =
4170 relative_path.is_some() && worktree.is_visible();
4171 let reveal_in_project_panel = entry_for_path
4172 .filter(|_| visible_in_project_panel)
4173 .map(|entry| entry.id);
4174 menu = menu
4175 .when_some(abs_path, |menu, abs_path| {
4176 menu.entry(
4177 "Copy Path",
4178 Some(Box::new(zed_actions::workspace::CopyPath)),
4179 window.handler_for(&editor, move |_, _, cx| {
4180 cx.write_to_clipboard(ClipboardItem::new_string(
4181 abs_path.to_string_lossy().into_owned(),
4182 ));
4183 }),
4184 )
4185 })
4186 .when_some(relative_path, |menu, relative_path| {
4187 menu.entry(
4188 "Copy Relative Path",
4189 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4190 window.handler_for(&editor, move |_, _, cx| {
4191 cx.write_to_clipboard(ClipboardItem::new_string(
4192 relative_path.display(path_style).to_string(),
4193 ));
4194 }),
4195 )
4196 })
4197 .when(
4198 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4199 |menu| menu.separator(),
4200 )
4201 .when_some(reveal_in_project_panel, |menu, entry_id| {
4202 menu.entry(
4203 "Reveal In Project Panel",
4204 Some(Box::new(RevealInProjectPanel::default())),
4205 window.handler_for(&editor, move |editor, _, cx| {
4206 if let Some(project) = &mut editor.project {
4207 project.update(cx, |_, cx| {
4208 cx.emit(project::Event::RevealInProjectPanel(
4209 entry_id,
4210 ))
4211 });
4212 }
4213 }),
4214 )
4215 })
4216 .when_some(parent_abs_path, |menu, parent_abs_path| {
4217 menu.entry(
4218 "Open in Terminal",
4219 Some(Box::new(OpenInTerminal)),
4220 window.handler_for(&editor, move |_, window, cx| {
4221 window.dispatch_action(
4222 OpenTerminal {
4223 working_directory: parent_abs_path.clone(),
4224 }
4225 .boxed_clone(),
4226 cx,
4227 );
4228 }),
4229 )
4230 });
4231 }
4232
4233 menu.context(menu_context)
4234 })
4235 })
4236 }
4237
4238 fn render_blocks(
4239 &self,
4240 rows: Range<DisplayRow>,
4241 snapshot: &EditorSnapshot,
4242 hitbox: &Hitbox,
4243 text_hitbox: &Hitbox,
4244 editor_width: Pixels,
4245 scroll_width: &mut Pixels,
4246 editor_margins: &EditorMargins,
4247 em_width: Pixels,
4248 text_x: Pixels,
4249 line_height: Pixels,
4250 line_layouts: &mut [LineWithInvisibles],
4251 selections: &[Selection<Point>],
4252 selected_buffer_ids: &Vec<BufferId>,
4253 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4254 sticky_header_excerpt_id: Option<ExcerptId>,
4255 window: &mut Window,
4256 cx: &mut App,
4257 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
4258 let (fixed_blocks, non_fixed_blocks) = snapshot
4259 .blocks_in_range(rows.clone())
4260 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4261
4262 let mut focused_block = self
4263 .editor
4264 .update(cx, |editor, _| editor.take_focused_block());
4265 let mut fixed_block_max_width = Pixels::ZERO;
4266 let mut blocks = Vec::new();
4267 let mut resized_blocks = HashMap::default();
4268 let mut row_block_types = HashMap::default();
4269
4270 for (row, block) in fixed_blocks {
4271 let block_id = block.id();
4272
4273 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4274 focused_block = None;
4275 }
4276
4277 if let Some((element, element_size, row, x_offset)) = self.render_block(
4278 block,
4279 AvailableSpace::MinContent,
4280 block_id,
4281 row,
4282 snapshot,
4283 text_x,
4284 &rows,
4285 line_layouts,
4286 editor_margins,
4287 line_height,
4288 em_width,
4289 text_hitbox,
4290 editor_width,
4291 scroll_width,
4292 &mut resized_blocks,
4293 &mut row_block_types,
4294 selections,
4295 selected_buffer_ids,
4296 is_row_soft_wrapped,
4297 sticky_header_excerpt_id,
4298 window,
4299 cx,
4300 ) {
4301 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4302 blocks.push(BlockLayout {
4303 id: block_id,
4304 x_offset,
4305 row: Some(row),
4306 element,
4307 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4308 style: BlockStyle::Fixed,
4309 overlaps_gutter: true,
4310 is_buffer_header: block.is_buffer_header(),
4311 });
4312 }
4313 }
4314
4315 for (row, block) in non_fixed_blocks {
4316 let style = block.style();
4317 let width = match (style, block.place_near()) {
4318 (_, true) => AvailableSpace::MinContent,
4319 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4320 (BlockStyle::Flex, _) => hitbox
4321 .size
4322 .width
4323 .max(fixed_block_max_width)
4324 .max(editor_margins.gutter.width + *scroll_width)
4325 .into(),
4326 (BlockStyle::Fixed, _) => unreachable!(),
4327 };
4328 let block_id = block.id();
4329
4330 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4331 focused_block = None;
4332 }
4333
4334 if let Some((element, element_size, row, x_offset)) = self.render_block(
4335 block,
4336 width,
4337 block_id,
4338 row,
4339 snapshot,
4340 text_x,
4341 &rows,
4342 line_layouts,
4343 editor_margins,
4344 line_height,
4345 em_width,
4346 text_hitbox,
4347 editor_width,
4348 scroll_width,
4349 &mut resized_blocks,
4350 &mut row_block_types,
4351 selections,
4352 selected_buffer_ids,
4353 is_row_soft_wrapped,
4354 sticky_header_excerpt_id,
4355 window,
4356 cx,
4357 ) {
4358 blocks.push(BlockLayout {
4359 id: block_id,
4360 x_offset,
4361 row: Some(row),
4362 element,
4363 available_space: size(width, element_size.height.into()),
4364 style,
4365 overlaps_gutter: !block.place_near(),
4366 is_buffer_header: block.is_buffer_header(),
4367 });
4368 }
4369 }
4370
4371 if let Some(focused_block) = focused_block
4372 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4373 && focus_handle.is_focused(window)
4374 && let Some(block) = snapshot.block_for_id(focused_block.id)
4375 {
4376 let style = block.style();
4377 let width = match style {
4378 BlockStyle::Fixed => AvailableSpace::MinContent,
4379 BlockStyle::Flex => AvailableSpace::Definite(
4380 hitbox
4381 .size
4382 .width
4383 .max(fixed_block_max_width)
4384 .max(editor_margins.gutter.width + *scroll_width),
4385 ),
4386 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4387 };
4388
4389 if let Some((element, element_size, _, x_offset)) = self.render_block(
4390 &block,
4391 width,
4392 focused_block.id,
4393 rows.end,
4394 snapshot,
4395 text_x,
4396 &rows,
4397 line_layouts,
4398 editor_margins,
4399 line_height,
4400 em_width,
4401 text_hitbox,
4402 editor_width,
4403 scroll_width,
4404 &mut resized_blocks,
4405 &mut row_block_types,
4406 selections,
4407 selected_buffer_ids,
4408 is_row_soft_wrapped,
4409 sticky_header_excerpt_id,
4410 window,
4411 cx,
4412 ) {
4413 blocks.push(BlockLayout {
4414 id: block.id(),
4415 x_offset,
4416 row: None,
4417 element,
4418 available_space: size(width, element_size.height.into()),
4419 style,
4420 overlaps_gutter: true,
4421 is_buffer_header: block.is_buffer_header(),
4422 });
4423 }
4424 }
4425
4426 if resized_blocks.is_empty() {
4427 *scroll_width =
4428 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4429 Ok((blocks, row_block_types))
4430 } else {
4431 Err(resized_blocks)
4432 }
4433 }
4434
4435 fn layout_blocks(
4436 &self,
4437 blocks: &mut Vec<BlockLayout>,
4438 hitbox: &Hitbox,
4439 line_height: Pixels,
4440 scroll_position: gpui::Point<ScrollOffset>,
4441 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4442 window: &mut Window,
4443 cx: &mut App,
4444 ) {
4445 for block in blocks {
4446 let mut origin = if let Some(row) = block.row {
4447 hitbox.origin
4448 + point(
4449 block.x_offset,
4450 Pixels::from(
4451 (row.as_f64() - scroll_position.y)
4452 * ScrollPixelOffset::from(line_height),
4453 ),
4454 )
4455 } else {
4456 // Position the block outside the visible area
4457 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4458 };
4459
4460 if !matches!(block.style, BlockStyle::Sticky) {
4461 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4462 }
4463
4464 let focus_handle =
4465 block
4466 .element
4467 .prepaint_as_root(origin, block.available_space, window, cx);
4468
4469 if let Some(focus_handle) = focus_handle {
4470 self.editor.update(cx, |editor, _cx| {
4471 editor.set_focused_block(FocusedBlock {
4472 id: block.id,
4473 focus_handle: focus_handle.downgrade(),
4474 });
4475 });
4476 }
4477 }
4478 }
4479
4480 fn layout_sticky_buffer_header(
4481 &self,
4482 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4483 scroll_position: gpui::Point<ScrollOffset>,
4484 line_height: Pixels,
4485 right_margin: Pixels,
4486 snapshot: &EditorSnapshot,
4487 hitbox: &Hitbox,
4488 selected_buffer_ids: &Vec<BufferId>,
4489 blocks: &[BlockLayout],
4490 window: &mut Window,
4491 cx: &mut App,
4492 ) -> AnyElement {
4493 let jump_data = header_jump_data(
4494 snapshot,
4495 DisplayRow(scroll_position.y as u32),
4496 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4497 excerpt,
4498 );
4499
4500 let editor_bg_color = cx.theme().colors().editor_background;
4501
4502 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4503
4504 let available_width = hitbox.bounds.size.width - right_margin;
4505
4506 let mut header = v_flex()
4507 .w_full()
4508 .relative()
4509 .child(
4510 div()
4511 .w(available_width)
4512 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4513 .bg(linear_gradient(
4514 0.,
4515 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4516 linear_color_stop(editor_bg_color, 0.6),
4517 ))
4518 .absolute()
4519 .top_0(),
4520 )
4521 .child(
4522 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4523 .into_any_element(),
4524 )
4525 .into_any_element();
4526
4527 let mut origin = hitbox.origin;
4528 // Move floating header up to avoid colliding with the next buffer header.
4529 for block in blocks.iter() {
4530 if !block.is_buffer_header {
4531 continue;
4532 }
4533
4534 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4535 continue;
4536 };
4537
4538 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4539 let offset = scroll_position.y - max_row as f64;
4540
4541 if offset > 0.0 {
4542 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4543 }
4544 break;
4545 }
4546
4547 let size = size(
4548 AvailableSpace::Definite(available_width),
4549 AvailableSpace::MinContent,
4550 );
4551
4552 header.prepaint_as_root(origin, size, window, cx);
4553
4554 header
4555 }
4556
4557 fn layout_sticky_headers(
4558 &self,
4559 snapshot: &EditorSnapshot,
4560 editor_width: Pixels,
4561 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4562 line_height: Pixels,
4563 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4564 content_origin: gpui::Point<Pixels>,
4565 gutter_dimensions: &GutterDimensions,
4566 gutter_hitbox: &Hitbox,
4567 text_hitbox: &Hitbox,
4568 window: &mut Window,
4569 cx: &mut App,
4570 ) -> Option<StickyHeaders> {
4571 let show_line_numbers = snapshot
4572 .show_line_numbers
4573 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4574
4575 let rows = Self::sticky_headers(self.editor.read(cx), snapshot, cx);
4576
4577 let mut lines = Vec::<StickyHeaderLine>::new();
4578
4579 for StickyHeader {
4580 item,
4581 sticky_row,
4582 start_point,
4583 offset,
4584 } in rows.into_iter().rev()
4585 {
4586 let line = layout_line(
4587 sticky_row,
4588 snapshot,
4589 &self.style,
4590 editor_width,
4591 is_row_soft_wrapped,
4592 window,
4593 cx,
4594 );
4595
4596 let line_number = show_line_numbers.then(|| {
4597 let number = (start_point.row + 1).to_string();
4598 let color = cx.theme().colors().editor_line_number;
4599 self.shape_line_number(SharedString::from(number), color, window)
4600 });
4601
4602 lines.push(StickyHeaderLine::new(
4603 sticky_row,
4604 line_height * offset as f32,
4605 line,
4606 line_number,
4607 item.range.start,
4608 line_height,
4609 scroll_pixel_position,
4610 content_origin,
4611 gutter_hitbox,
4612 text_hitbox,
4613 window,
4614 cx,
4615 ));
4616 }
4617
4618 lines.reverse();
4619 if lines.is_empty() {
4620 return None;
4621 }
4622
4623 Some(StickyHeaders {
4624 lines,
4625 gutter_background: cx.theme().colors().editor_gutter_background,
4626 content_background: self.style.background,
4627 gutter_right_padding: gutter_dimensions.right_padding,
4628 })
4629 }
4630
4631 pub(crate) fn sticky_headers(
4632 editor: &Editor,
4633 snapshot: &EditorSnapshot,
4634 cx: &App,
4635 ) -> Vec<StickyHeader> {
4636 let scroll_top = snapshot.scroll_position().y;
4637
4638 let mut end_rows = Vec::<DisplayRow>::new();
4639 let mut rows = Vec::<StickyHeader>::new();
4640
4641 let items = editor.sticky_headers(cx).unwrap_or_default();
4642
4643 for item in items {
4644 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4645 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4646
4647 let sticky_row = snapshot
4648 .display_snapshot
4649 .point_to_display_point(start_point, Bias::Left)
4650 .row();
4651 let end_row = snapshot
4652 .display_snapshot
4653 .point_to_display_point(end_point, Bias::Left)
4654 .row();
4655 let max_sticky_row = end_row.previous_row();
4656 if max_sticky_row <= sticky_row {
4657 continue;
4658 }
4659
4660 while end_rows
4661 .last()
4662 .is_some_and(|&last_end| last_end < sticky_row)
4663 {
4664 end_rows.pop();
4665 }
4666 let depth = end_rows.len();
4667 let adjusted_scroll_top = scroll_top + depth as f64;
4668
4669 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4670 {
4671 continue;
4672 }
4673
4674 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4675 let offset = (depth as f64).min(max_scroll_offset);
4676
4677 end_rows.push(end_row);
4678 rows.push(StickyHeader {
4679 item,
4680 sticky_row,
4681 start_point,
4682 offset,
4683 });
4684 }
4685
4686 rows
4687 }
4688
4689 fn layout_cursor_popovers(
4690 &self,
4691 line_height: Pixels,
4692 text_hitbox: &Hitbox,
4693 content_origin: gpui::Point<Pixels>,
4694 right_margin: Pixels,
4695 start_row: DisplayRow,
4696 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4697 line_layouts: &[LineWithInvisibles],
4698 cursor: DisplayPoint,
4699 cursor_point: Point,
4700 style: &EditorStyle,
4701 window: &mut Window,
4702 cx: &mut App,
4703 ) -> Option<ContextMenuLayout> {
4704 let mut min_menu_height = Pixels::ZERO;
4705 let mut max_menu_height = Pixels::ZERO;
4706 let mut height_above_menu = Pixels::ZERO;
4707 let height_below_menu = Pixels::ZERO;
4708 let mut edit_prediction_popover_visible = false;
4709 let mut context_menu_visible = false;
4710 let context_menu_placement;
4711
4712 {
4713 let editor = self.editor.read(cx);
4714 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4715 {
4716 height_above_menu +=
4717 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4718 edit_prediction_popover_visible = true;
4719 }
4720
4721 if editor.context_menu_visible()
4722 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4723 {
4724 let (min_height_in_lines, max_height_in_lines) = editor
4725 .context_menu_options
4726 .as_ref()
4727 .map_or((3, 12), |options| {
4728 (options.min_entries_visible, options.max_entries_visible)
4729 });
4730
4731 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4732 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4733 context_menu_visible = true;
4734 }
4735 context_menu_placement = editor
4736 .context_menu_options
4737 .as_ref()
4738 .and_then(|options| options.placement.clone());
4739 }
4740
4741 let visible = edit_prediction_popover_visible || context_menu_visible;
4742 if !visible {
4743 return None;
4744 }
4745
4746 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4747 let target_position = content_origin
4748 + gpui::Point {
4749 x: cmp::max(
4750 px(0.),
4751 Pixels::from(
4752 ScrollPixelOffset::from(
4753 cursor_row_layout.x_for_index(cursor.column() as usize),
4754 ) - scroll_pixel_position.x,
4755 ),
4756 ),
4757 y: cmp::max(
4758 px(0.),
4759 Pixels::from(
4760 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4761 - scroll_pixel_position.y,
4762 ),
4763 ),
4764 };
4765
4766 let viewport_bounds =
4767 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4768 right: -right_margin - MENU_GAP,
4769 ..Default::default()
4770 });
4771
4772 let min_height = height_above_menu + min_menu_height + height_below_menu;
4773 let max_height = height_above_menu + max_menu_height + height_below_menu;
4774 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4775 target_position,
4776 line_height,
4777 min_height,
4778 max_height,
4779 context_menu_placement,
4780 text_hitbox,
4781 viewport_bounds,
4782 window,
4783 cx,
4784 |height, max_width_for_stable_x, y_flipped, window, cx| {
4785 // First layout the menu to get its size - others can be at least this wide.
4786 let context_menu = if context_menu_visible {
4787 let menu_height = if y_flipped {
4788 height - height_below_menu
4789 } else {
4790 height - height_above_menu
4791 };
4792 let mut element = self
4793 .render_context_menu(line_height, menu_height, window, cx)
4794 .expect("Visible context menu should always render.");
4795 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4796 Some((CursorPopoverType::CodeContextMenu, element, size))
4797 } else {
4798 None
4799 };
4800 let min_width = context_menu
4801 .as_ref()
4802 .map_or(px(0.), |(_, _, size)| size.width);
4803 let max_width = max_width_for_stable_x.max(
4804 context_menu
4805 .as_ref()
4806 .map_or(px(0.), |(_, _, size)| size.width),
4807 );
4808
4809 let edit_prediction = if edit_prediction_popover_visible {
4810 self.editor.update(cx, move |editor, cx| {
4811 let accept_binding =
4812 editor.accept_edit_prediction_keybind(false, window, cx);
4813 let mut element = editor.render_edit_prediction_cursor_popover(
4814 min_width,
4815 max_width,
4816 cursor_point,
4817 style,
4818 accept_binding.keystroke(),
4819 window,
4820 cx,
4821 )?;
4822 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4823 Some((CursorPopoverType::EditPrediction, element, size))
4824 })
4825 } else {
4826 None
4827 };
4828 vec![edit_prediction, context_menu]
4829 .into_iter()
4830 .flatten()
4831 .collect::<Vec<_>>()
4832 },
4833 )?;
4834
4835 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4836 .iter()
4837 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4838 let last_ix = laid_out_popovers.len() - 1;
4839 let menu_is_last = menu_ix == last_ix;
4840 let first_popover_bounds = laid_out_popovers[0].1;
4841 let last_popover_bounds = laid_out_popovers[last_ix].1;
4842
4843 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4844 // right, and otherwise it goes below or to the right.
4845 let mut target_bounds = Bounds::from_corners(
4846 first_popover_bounds.origin,
4847 last_popover_bounds.bottom_right(),
4848 );
4849 target_bounds.size.width = menu_bounds.size.width;
4850
4851 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4852 // based on this is preferred for layout stability.
4853 let mut max_target_bounds = target_bounds;
4854 max_target_bounds.size.height = max_height;
4855 if y_flipped {
4856 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4857 }
4858
4859 // Add spacing around `target_bounds` and `max_target_bounds`.
4860 let mut extend_amount = Edges::all(MENU_GAP);
4861 if y_flipped {
4862 extend_amount.bottom = line_height;
4863 } else {
4864 extend_amount.top = line_height;
4865 }
4866 let target_bounds = target_bounds.extend(extend_amount);
4867 let max_target_bounds = max_target_bounds.extend(extend_amount);
4868
4869 let must_place_above_or_below =
4870 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4871 laid_out_popovers[menu_ix + 1..]
4872 .iter()
4873 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4874 } else {
4875 false
4876 };
4877
4878 let aside_bounds = self.layout_context_menu_aside(
4879 y_flipped,
4880 *menu_bounds,
4881 target_bounds,
4882 max_target_bounds,
4883 max_menu_height,
4884 must_place_above_or_below,
4885 text_hitbox,
4886 viewport_bounds,
4887 window,
4888 cx,
4889 );
4890
4891 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4892 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4893 Some(*bounds)
4894 } else {
4895 None
4896 }
4897 }) {
4898 let bounds = if let Some(aside_bounds) = aside_bounds {
4899 menu_bounds.union(&aside_bounds)
4900 } else {
4901 menu_bounds
4902 };
4903 return Some(ContextMenuLayout { y_flipped, bounds });
4904 }
4905
4906 None
4907 }
4908
4909 fn layout_gutter_menu(
4910 &self,
4911 line_height: Pixels,
4912 text_hitbox: &Hitbox,
4913 content_origin: gpui::Point<Pixels>,
4914 right_margin: Pixels,
4915 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4916 gutter_overshoot: Pixels,
4917 window: &mut Window,
4918 cx: &mut App,
4919 ) {
4920 let editor = self.editor.read(cx);
4921 if !editor.context_menu_visible() {
4922 return;
4923 }
4924 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4925 editor.context_menu_origin()
4926 else {
4927 return;
4928 };
4929 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4930 // indicator than just a plain first column of the text field.
4931 let target_position = content_origin
4932 + gpui::Point {
4933 x: -gutter_overshoot,
4934 y: Pixels::from(
4935 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
4936 - scroll_pixel_position.y,
4937 ),
4938 };
4939
4940 let (min_height_in_lines, max_height_in_lines) = editor
4941 .context_menu_options
4942 .as_ref()
4943 .map_or((3, 12), |options| {
4944 (options.min_entries_visible, options.max_entries_visible)
4945 });
4946
4947 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4948 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4949 let viewport_bounds =
4950 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4951 right: -right_margin - MENU_GAP,
4952 ..Default::default()
4953 });
4954 self.layout_popovers_above_or_below_line(
4955 target_position,
4956 line_height,
4957 min_height,
4958 max_height,
4959 editor
4960 .context_menu_options
4961 .as_ref()
4962 .and_then(|options| options.placement.clone()),
4963 text_hitbox,
4964 viewport_bounds,
4965 window,
4966 cx,
4967 move |height, _max_width_for_stable_x, _, window, cx| {
4968 let mut element = self
4969 .render_context_menu(line_height, height, window, cx)
4970 .expect("Visible context menu should always render.");
4971 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4972 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4973 },
4974 );
4975 }
4976
4977 fn layout_popovers_above_or_below_line(
4978 &self,
4979 target_position: gpui::Point<Pixels>,
4980 line_height: Pixels,
4981 min_height: Pixels,
4982 max_height: Pixels,
4983 placement: Option<ContextMenuPlacement>,
4984 text_hitbox: &Hitbox,
4985 viewport_bounds: Bounds<Pixels>,
4986 window: &mut Window,
4987 cx: &mut App,
4988 make_sized_popovers: impl FnOnce(
4989 Pixels,
4990 Pixels,
4991 bool,
4992 &mut Window,
4993 &mut App,
4994 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4995 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4996 let text_style = TextStyleRefinement {
4997 line_height: Some(DefiniteLength::Fraction(
4998 BufferLineHeight::Comfortable.value(),
4999 )),
5000 ..Default::default()
5001 };
5002 window.with_text_style(Some(text_style), |window| {
5003 // If the max height won't fit below and there is more space above, put it above the line.
5004 let bottom_y_when_flipped = target_position.y - line_height;
5005 let available_above = bottom_y_when_flipped - text_hitbox.top();
5006 let available_below = text_hitbox.bottom() - target_position.y;
5007 let y_overflows_below = max_height > available_below;
5008 let mut y_flipped = match placement {
5009 Some(ContextMenuPlacement::Above) => true,
5010 Some(ContextMenuPlacement::Below) => false,
5011 None => y_overflows_below && available_above > available_below,
5012 };
5013 let mut height = cmp::min(
5014 max_height,
5015 if y_flipped {
5016 available_above
5017 } else {
5018 available_below
5019 },
5020 );
5021
5022 // If the min height doesn't fit within text bounds, instead fit within the window.
5023 if height < min_height {
5024 let available_above = bottom_y_when_flipped;
5025 let available_below = viewport_bounds.bottom() - target_position.y;
5026 let (y_flipped_override, height_override) = match placement {
5027 Some(ContextMenuPlacement::Above) => {
5028 (true, cmp::min(available_above, min_height))
5029 }
5030 Some(ContextMenuPlacement::Below) => {
5031 (false, cmp::min(available_below, min_height))
5032 }
5033 None => {
5034 if available_below > min_height {
5035 (false, min_height)
5036 } else if available_above > min_height {
5037 (true, min_height)
5038 } else if available_above > available_below {
5039 (true, available_above)
5040 } else {
5041 (false, available_below)
5042 }
5043 }
5044 };
5045 y_flipped = y_flipped_override;
5046 height = height_override;
5047 }
5048
5049 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5050
5051 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5052 // for very narrow windows.
5053 let popovers =
5054 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5055 if popovers.is_empty() {
5056 return None;
5057 }
5058
5059 let max_width = popovers
5060 .iter()
5061 .map(|(_, _, size)| size.width)
5062 .max()
5063 .unwrap_or_default();
5064
5065 let mut current_position = gpui::Point {
5066 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5067 // overflow. Include space for the scrollbar.
5068 x: target_position
5069 .x
5070 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5071 y: if y_flipped {
5072 bottom_y_when_flipped
5073 } else {
5074 target_position.y
5075 },
5076 };
5077
5078 let mut laid_out_popovers = popovers
5079 .into_iter()
5080 .map(|(popover_type, element, size)| {
5081 if y_flipped {
5082 current_position.y -= size.height;
5083 }
5084 let position = current_position;
5085 window.defer_draw(element, current_position, 1);
5086 if !y_flipped {
5087 current_position.y += size.height + MENU_GAP;
5088 } else {
5089 current_position.y -= MENU_GAP;
5090 }
5091 (popover_type, Bounds::new(position, size))
5092 })
5093 .collect::<Vec<_>>();
5094
5095 if y_flipped {
5096 laid_out_popovers.reverse();
5097 }
5098
5099 Some((laid_out_popovers, y_flipped))
5100 })
5101 }
5102
5103 fn layout_context_menu_aside(
5104 &self,
5105 y_flipped: bool,
5106 menu_bounds: Bounds<Pixels>,
5107 target_bounds: Bounds<Pixels>,
5108 max_target_bounds: Bounds<Pixels>,
5109 max_height: Pixels,
5110 must_place_above_or_below: bool,
5111 text_hitbox: &Hitbox,
5112 viewport_bounds: Bounds<Pixels>,
5113 window: &mut Window,
5114 cx: &mut App,
5115 ) -> Option<Bounds<Pixels>> {
5116 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5117 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5118 && !must_place_above_or_below
5119 {
5120 let max_width = cmp::min(
5121 available_within_viewport.right - px(1.),
5122 MENU_ASIDE_MAX_WIDTH,
5123 );
5124 let mut aside = self.render_context_menu_aside(
5125 size(max_width, max_height - POPOVER_Y_PADDING),
5126 window,
5127 cx,
5128 )?;
5129 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5130 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5131 Some((aside, right_position, size))
5132 } else {
5133 let max_size = size(
5134 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5135 // won't be needed here.
5136 cmp::min(
5137 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5138 viewport_bounds.right(),
5139 ),
5140 cmp::min(
5141 max_height,
5142 cmp::max(
5143 available_within_viewport.top,
5144 available_within_viewport.bottom,
5145 ),
5146 ) - POPOVER_Y_PADDING,
5147 );
5148 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5149 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5150
5151 let top_position = point(
5152 menu_bounds.origin.x,
5153 target_bounds.top() - actual_size.height,
5154 );
5155 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5156
5157 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5158 // Prefer to fit on the same side of the line as the menu, then on the other side of
5159 // the line.
5160 if !y_flipped && wanted.height < available.bottom {
5161 Some(bottom_position)
5162 } else if !y_flipped && wanted.height < available.top {
5163 Some(top_position)
5164 } else if y_flipped && wanted.height < available.top {
5165 Some(top_position)
5166 } else if y_flipped && wanted.height < available.bottom {
5167 Some(bottom_position)
5168 } else {
5169 None
5170 }
5171 };
5172
5173 // Prefer choosing a direction using max sizes rather than actual size for stability.
5174 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5175 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5176 let aside_position = fit_within(available_within_text, wanted)
5177 // Fallback: fit max size in window.
5178 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5179 // Fallback: fit actual size in window.
5180 .or_else(|| fit_within(available_within_viewport, actual_size));
5181
5182 aside_position.map(|position| (aside, position, actual_size))
5183 };
5184
5185 // Skip drawing if it doesn't fit anywhere.
5186 if let Some((aside, position, size)) = positioned_aside {
5187 let aside_bounds = Bounds::new(position, size);
5188 window.defer_draw(aside, position, 2);
5189 return Some(aside_bounds);
5190 }
5191
5192 None
5193 }
5194
5195 fn render_context_menu(
5196 &self,
5197 line_height: Pixels,
5198 height: Pixels,
5199 window: &mut Window,
5200 cx: &mut App,
5201 ) -> Option<AnyElement> {
5202 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5203 self.editor.update(cx, |editor, cx| {
5204 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
5205 })
5206 }
5207
5208 fn render_context_menu_aside(
5209 &self,
5210 max_size: Size<Pixels>,
5211 window: &mut Window,
5212 cx: &mut App,
5213 ) -> Option<AnyElement> {
5214 if max_size.width < px(100.) || max_size.height < px(12.) {
5215 None
5216 } else {
5217 self.editor.update(cx, |editor, cx| {
5218 editor.render_context_menu_aside(max_size, window, cx)
5219 })
5220 }
5221 }
5222
5223 fn layout_mouse_context_menu(
5224 &self,
5225 editor_snapshot: &EditorSnapshot,
5226 visible_range: Range<DisplayRow>,
5227 content_origin: gpui::Point<Pixels>,
5228 window: &mut Window,
5229 cx: &mut App,
5230 ) -> Option<AnyElement> {
5231 let position = self.editor.update(cx, |editor, _cx| {
5232 let visible_start_point = editor.display_to_pixel_point(
5233 DisplayPoint::new(visible_range.start, 0),
5234 editor_snapshot,
5235 window,
5236 )?;
5237 let visible_end_point = editor.display_to_pixel_point(
5238 DisplayPoint::new(visible_range.end, 0),
5239 editor_snapshot,
5240 window,
5241 )?;
5242
5243 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5244 let (source_display_point, position) = match mouse_context_menu.position {
5245 MenuPosition::PinnedToScreen(point) => (None, point),
5246 MenuPosition::PinnedToEditor { source, offset } => {
5247 let source_display_point = source.to_display_point(editor_snapshot);
5248 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
5249 let position = content_origin + source_point + offset;
5250 (Some(source_display_point), position)
5251 }
5252 };
5253
5254 let source_included = source_display_point.is_none_or(|source_display_point| {
5255 visible_range
5256 .to_inclusive()
5257 .contains(&source_display_point.row())
5258 });
5259 let position_included =
5260 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5261 if !source_included && !position_included {
5262 None
5263 } else {
5264 Some(position)
5265 }
5266 })?;
5267
5268 let text_style = TextStyleRefinement {
5269 line_height: Some(DefiniteLength::Fraction(
5270 BufferLineHeight::Comfortable.value(),
5271 )),
5272 ..Default::default()
5273 };
5274 window.with_text_style(Some(text_style), |window| {
5275 let mut element = self.editor.read_with(cx, |editor, _| {
5276 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5277 let context_menu = mouse_context_menu.context_menu.clone();
5278
5279 Some(
5280 deferred(
5281 anchored()
5282 .position(position)
5283 .child(context_menu)
5284 .anchor(Corner::TopLeft)
5285 .snap_to_window_with_margin(px(8.)),
5286 )
5287 .with_priority(1)
5288 .into_any(),
5289 )
5290 })?;
5291
5292 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5293 Some(element)
5294 })
5295 }
5296
5297 fn layout_hover_popovers(
5298 &self,
5299 snapshot: &EditorSnapshot,
5300 hitbox: &Hitbox,
5301 visible_display_row_range: Range<DisplayRow>,
5302 content_origin: gpui::Point<Pixels>,
5303 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5304 line_layouts: &[LineWithInvisibles],
5305 line_height: Pixels,
5306 em_width: Pixels,
5307 context_menu_layout: Option<ContextMenuLayout>,
5308 window: &mut Window,
5309 cx: &mut App,
5310 ) {
5311 struct MeasuredHoverPopover {
5312 element: AnyElement,
5313 size: Size<Pixels>,
5314 horizontal_offset: Pixels,
5315 }
5316
5317 let max_size = size(
5318 (120. * em_width) // Default size
5319 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5320 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5321 (16. * line_height) // Default size
5322 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5323 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5324 );
5325
5326 let hover_popovers = self.editor.update(cx, |editor, cx| {
5327 editor.hover_state.render(
5328 snapshot,
5329 visible_display_row_range.clone(),
5330 max_size,
5331 &editor.text_layout_details(window),
5332 window,
5333 cx,
5334 )
5335 });
5336 let Some((popover_position, hover_popovers)) = hover_popovers else {
5337 return;
5338 };
5339
5340 // This is safe because we check on layout whether the required row is available
5341 let hovered_row_layout = &line_layouts[popover_position
5342 .row()
5343 .minus(visible_display_row_range.start)
5344 as usize];
5345
5346 // Compute Hovered Point
5347 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5348 - Pixels::from(scroll_pixel_position.x);
5349 let y = Pixels::from(
5350 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5351 - scroll_pixel_position.y,
5352 );
5353 let hovered_point = content_origin + point(x, y);
5354
5355 let mut overall_height = Pixels::ZERO;
5356 let mut measured_hover_popovers = Vec::new();
5357 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5358 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5359 let horizontal_offset =
5360 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5361 .min(Pixels::ZERO);
5362 match position {
5363 itertools::Position::Middle | itertools::Position::Last => {
5364 overall_height += HOVER_POPOVER_GAP
5365 }
5366 _ => {}
5367 }
5368 overall_height += size.height;
5369 measured_hover_popovers.push(MeasuredHoverPopover {
5370 element: hover_popover,
5371 size,
5372 horizontal_offset,
5373 });
5374 }
5375
5376 fn draw_occluder(
5377 width: Pixels,
5378 origin: gpui::Point<Pixels>,
5379 window: &mut Window,
5380 cx: &mut App,
5381 ) {
5382 let mut occlusion = div()
5383 .size_full()
5384 .occlude()
5385 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5386 .into_any_element();
5387 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5388 window.defer_draw(occlusion, origin, 2);
5389 }
5390
5391 fn place_popovers_above(
5392 hovered_point: gpui::Point<Pixels>,
5393 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5394 window: &mut Window,
5395 cx: &mut App,
5396 ) {
5397 let mut current_y = hovered_point.y;
5398 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5399 let size = popover.size;
5400 let popover_origin = point(
5401 hovered_point.x + popover.horizontal_offset,
5402 current_y - size.height,
5403 );
5404
5405 window.defer_draw(popover.element, popover_origin, 2);
5406 if position != itertools::Position::Last {
5407 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5408 draw_occluder(size.width, origin, window, cx);
5409 }
5410
5411 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5412 }
5413 }
5414
5415 fn place_popovers_below(
5416 hovered_point: gpui::Point<Pixels>,
5417 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5418 line_height: Pixels,
5419 window: &mut Window,
5420 cx: &mut App,
5421 ) {
5422 let mut current_y = hovered_point.y + line_height;
5423 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5424 let size = popover.size;
5425 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5426
5427 window.defer_draw(popover.element, popover_origin, 2);
5428 if position != itertools::Position::Last {
5429 let origin = point(popover_origin.x, popover_origin.y + size.height);
5430 draw_occluder(size.width, origin, window, cx);
5431 }
5432
5433 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5434 }
5435 }
5436
5437 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5438 context_menu_layout
5439 .as_ref()
5440 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5441 };
5442
5443 let can_place_above = {
5444 let mut bounds_above = Vec::new();
5445 let mut current_y = hovered_point.y;
5446 for popover in &measured_hover_popovers {
5447 let size = popover.size;
5448 let popover_origin = point(
5449 hovered_point.x + popover.horizontal_offset,
5450 current_y - size.height,
5451 );
5452 bounds_above.push(Bounds::new(popover_origin, size));
5453 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5454 }
5455 bounds_above
5456 .iter()
5457 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5458 };
5459
5460 let can_place_below = || {
5461 let mut bounds_below = Vec::new();
5462 let mut current_y = hovered_point.y + line_height;
5463 for popover in &measured_hover_popovers {
5464 let size = popover.size;
5465 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5466 bounds_below.push(Bounds::new(popover_origin, size));
5467 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5468 }
5469 bounds_below
5470 .iter()
5471 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5472 };
5473
5474 if can_place_above {
5475 // try placing above hovered point
5476 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5477 } else if can_place_below() {
5478 // try placing below hovered point
5479 place_popovers_below(
5480 hovered_point,
5481 measured_hover_popovers,
5482 line_height,
5483 window,
5484 cx,
5485 );
5486 } else {
5487 // try to place popovers around the context menu
5488 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5489 let total_width = measured_hover_popovers
5490 .iter()
5491 .map(|p| p.size.width)
5492 .max()
5493 .unwrap_or(Pixels::ZERO);
5494 let y_for_horizontal_positioning = if menu.y_flipped {
5495 menu.bounds.bottom() - overall_height
5496 } else {
5497 menu.bounds.top()
5498 };
5499 let possible_origins = vec![
5500 // left of context menu
5501 point(
5502 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5503 y_for_horizontal_positioning,
5504 ),
5505 // right of context menu
5506 point(
5507 menu.bounds.right() + HOVER_POPOVER_GAP,
5508 y_for_horizontal_positioning,
5509 ),
5510 // top of context menu
5511 point(
5512 menu.bounds.left(),
5513 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5514 ),
5515 // bottom of context menu
5516 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5517 ];
5518 possible_origins.into_iter().find(|&origin| {
5519 Bounds::new(origin, size(total_width, overall_height))
5520 .is_contained_within(hitbox)
5521 })
5522 });
5523 if let Some(origin) = origin_surrounding_menu {
5524 let mut current_y = origin.y;
5525 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5526 let size = popover.size;
5527 let popover_origin = point(origin.x, current_y);
5528
5529 window.defer_draw(popover.element, popover_origin, 2);
5530 if position != itertools::Position::Last {
5531 let origin = point(popover_origin.x, popover_origin.y + size.height);
5532 draw_occluder(size.width, origin, window, cx);
5533 }
5534
5535 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5536 }
5537 } else {
5538 // fallback to existing above/below cursor logic
5539 // this might overlap menu or overflow in rare case
5540 if can_place_above {
5541 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5542 } else {
5543 place_popovers_below(
5544 hovered_point,
5545 measured_hover_popovers,
5546 line_height,
5547 window,
5548 cx,
5549 );
5550 }
5551 }
5552 }
5553 }
5554
5555 fn layout_diff_hunk_controls(
5556 &self,
5557 row_range: Range<DisplayRow>,
5558 row_infos: &[RowInfo],
5559 text_hitbox: &Hitbox,
5560 newest_cursor_position: Option<DisplayPoint>,
5561 line_height: Pixels,
5562 right_margin: Pixels,
5563 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5564 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5565 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5566 editor: Entity<Editor>,
5567 window: &mut Window,
5568 cx: &mut App,
5569 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5570 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5571 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5572
5573 let mut controls = vec![];
5574 let mut control_bounds = vec![];
5575
5576 let active_positions = [
5577 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5578 newest_cursor_position,
5579 ];
5580
5581 for (hunk, _) in display_hunks {
5582 if let DisplayDiffHunk::Unfolded {
5583 display_row_range,
5584 multi_buffer_range,
5585 status,
5586 is_created_file,
5587 ..
5588 } = &hunk
5589 {
5590 if display_row_range.start < row_range.start
5591 || display_row_range.start >= row_range.end
5592 {
5593 continue;
5594 }
5595 if highlighted_rows
5596 .get(&display_row_range.start)
5597 .and_then(|highlight| highlight.type_id)
5598 .is_some_and(|type_id| {
5599 [
5600 TypeId::of::<ConflictsOuter>(),
5601 TypeId::of::<ConflictsOursMarker>(),
5602 TypeId::of::<ConflictsOurs>(),
5603 TypeId::of::<ConflictsTheirs>(),
5604 TypeId::of::<ConflictsTheirsMarker>(),
5605 ]
5606 .contains(&type_id)
5607 })
5608 {
5609 continue;
5610 }
5611 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5612 if row_infos[row_ix].diff_status.is_none() {
5613 continue;
5614 }
5615 if row_infos[row_ix]
5616 .diff_status
5617 .is_some_and(|status| status.is_added())
5618 && !status.is_added()
5619 {
5620 continue;
5621 }
5622
5623 if active_positions
5624 .iter()
5625 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5626 {
5627 let y = (display_row_range.start.as_f64()
5628 * ScrollPixelOffset::from(line_height)
5629 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5630 - scroll_pixel_position.y)
5631 .into();
5632
5633 let mut element = render_diff_hunk_controls(
5634 display_row_range.start.0,
5635 status,
5636 multi_buffer_range.clone(),
5637 *is_created_file,
5638 line_height,
5639 &editor,
5640 window,
5641 cx,
5642 );
5643 let size =
5644 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5645
5646 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5647
5648 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5649 control_bounds.push((display_row_range.start, bounds));
5650
5651 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5652 element.prepaint(window, cx)
5653 });
5654 controls.push(element);
5655 }
5656 }
5657 }
5658
5659 (controls, control_bounds)
5660 }
5661
5662 fn layout_signature_help(
5663 &self,
5664 hitbox: &Hitbox,
5665 content_origin: gpui::Point<Pixels>,
5666 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5667 newest_selection_head: Option<DisplayPoint>,
5668 start_row: DisplayRow,
5669 line_layouts: &[LineWithInvisibles],
5670 line_height: Pixels,
5671 em_width: Pixels,
5672 context_menu_layout: Option<ContextMenuLayout>,
5673 window: &mut Window,
5674 cx: &mut App,
5675 ) {
5676 if !self.editor.focus_handle(cx).is_focused(window) {
5677 return;
5678 }
5679 let Some(newest_selection_head) = newest_selection_head else {
5680 return;
5681 };
5682
5683 let max_size = size(
5684 (120. * em_width) // Default size
5685 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5686 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5687 (16. * line_height) // Default size
5688 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5689 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5690 );
5691
5692 let maybe_element = self.editor.update(cx, |editor, cx| {
5693 if let Some(popover) = editor.signature_help_state.popover_mut() {
5694 let element = popover.render(max_size, window, cx);
5695 Some(element)
5696 } else {
5697 None
5698 }
5699 });
5700 let Some(mut element) = maybe_element else {
5701 return;
5702 };
5703
5704 let selection_row = newest_selection_head.row();
5705 let Some(cursor_row_layout) = (selection_row >= start_row)
5706 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5707 .flatten()
5708 else {
5709 return;
5710 };
5711
5712 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5713 - Pixels::from(scroll_pixel_position.x);
5714 let target_y = Pixels::from(
5715 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5716 );
5717 let target_point = content_origin + point(target_x, target_y);
5718
5719 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5720
5721 let (popover_bounds_above, popover_bounds_below) = {
5722 let horizontal_offset = (hitbox.top_right().x
5723 - POPOVER_RIGHT_OFFSET
5724 - (target_point.x + actual_size.width))
5725 .min(Pixels::ZERO);
5726 let initial_x = target_point.x + horizontal_offset;
5727 (
5728 Bounds::new(
5729 point(initial_x, target_point.y - actual_size.height),
5730 actual_size,
5731 ),
5732 Bounds::new(
5733 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5734 actual_size,
5735 ),
5736 )
5737 };
5738
5739 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5740 context_menu_layout
5741 .as_ref()
5742 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5743 };
5744
5745 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5746 && !intersects_menu(popover_bounds_above)
5747 {
5748 // try placing above cursor
5749 popover_bounds_above.origin
5750 } else if popover_bounds_below.is_contained_within(hitbox)
5751 && !intersects_menu(popover_bounds_below)
5752 {
5753 // try placing below cursor
5754 popover_bounds_below.origin
5755 } else {
5756 // try surrounding context menu if exists
5757 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5758 let y_for_horizontal_positioning = if menu.y_flipped {
5759 menu.bounds.bottom() - actual_size.height
5760 } else {
5761 menu.bounds.top()
5762 };
5763 let possible_origins = vec![
5764 // left of context menu
5765 point(
5766 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5767 y_for_horizontal_positioning,
5768 ),
5769 // right of context menu
5770 point(
5771 menu.bounds.right() + HOVER_POPOVER_GAP,
5772 y_for_horizontal_positioning,
5773 ),
5774 // top of context menu
5775 point(
5776 menu.bounds.left(),
5777 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5778 ),
5779 // bottom of context menu
5780 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5781 ];
5782 possible_origins
5783 .into_iter()
5784 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5785 });
5786 origin_surrounding_menu.unwrap_or_else(|| {
5787 // fallback to existing above/below cursor logic
5788 // this might overlap menu or overflow in rare case
5789 if popover_bounds_above.is_contained_within(hitbox) {
5790 popover_bounds_above.origin
5791 } else {
5792 popover_bounds_below.origin
5793 }
5794 })
5795 };
5796
5797 window.defer_draw(element, final_origin, 2);
5798 }
5799
5800 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5801 window.paint_layer(layout.hitbox.bounds, |window| {
5802 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5803 let gutter_bg = cx.theme().colors().editor_gutter_background;
5804 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5805 window.paint_quad(fill(
5806 layout.position_map.text_hitbox.bounds,
5807 self.style.background,
5808 ));
5809
5810 if matches!(
5811 layout.mode,
5812 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5813 ) {
5814 let show_active_line_background = match layout.mode {
5815 EditorMode::Full {
5816 show_active_line_background,
5817 ..
5818 } => show_active_line_background,
5819 EditorMode::Minimap { .. } => true,
5820 _ => false,
5821 };
5822 let mut active_rows = layout.active_rows.iter().peekable();
5823 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5824 let mut end_row = start_row.0;
5825 while active_rows
5826 .peek()
5827 .is_some_and(|(active_row, has_selection)| {
5828 active_row.0 == end_row + 1
5829 && has_selection.selection == contains_non_empty_selection.selection
5830 })
5831 {
5832 active_rows.next().unwrap();
5833 end_row += 1;
5834 }
5835
5836 if show_active_line_background && !contains_non_empty_selection.selection {
5837 let highlight_h_range =
5838 match layout.position_map.snapshot.current_line_highlight {
5839 CurrentLineHighlight::Gutter => Some(Range {
5840 start: layout.hitbox.left(),
5841 end: layout.gutter_hitbox.right(),
5842 }),
5843 CurrentLineHighlight::Line => Some(Range {
5844 start: layout.position_map.text_hitbox.bounds.left(),
5845 end: layout.position_map.text_hitbox.bounds.right(),
5846 }),
5847 CurrentLineHighlight::All => Some(Range {
5848 start: layout.hitbox.left(),
5849 end: layout.hitbox.right(),
5850 }),
5851 CurrentLineHighlight::None => None,
5852 };
5853 if let Some(range) = highlight_h_range {
5854 let active_line_bg = cx.theme().colors().editor_active_line_background;
5855 let bounds = Bounds {
5856 origin: point(
5857 range.start,
5858 layout.hitbox.origin.y
5859 + Pixels::from(
5860 (start_row.as_f64() - scroll_top)
5861 * ScrollPixelOffset::from(
5862 layout.position_map.line_height,
5863 ),
5864 ),
5865 ),
5866 size: size(
5867 range.end - range.start,
5868 layout.position_map.line_height
5869 * (end_row - start_row.0 + 1) as f32,
5870 ),
5871 };
5872 window.paint_quad(fill(bounds, active_line_bg));
5873 }
5874 }
5875 }
5876
5877 let mut paint_highlight = |highlight_row_start: DisplayRow,
5878 highlight_row_end: DisplayRow,
5879 highlight: crate::LineHighlight,
5880 edges| {
5881 let mut origin_x = layout.hitbox.left();
5882 let mut width = layout.hitbox.size.width;
5883 if !highlight.include_gutter {
5884 origin_x += layout.gutter_hitbox.size.width;
5885 width -= layout.gutter_hitbox.size.width;
5886 }
5887
5888 let origin = point(
5889 origin_x,
5890 layout.hitbox.origin.y
5891 + Pixels::from(
5892 (highlight_row_start.as_f64() - scroll_top)
5893 * ScrollPixelOffset::from(layout.position_map.line_height),
5894 ),
5895 );
5896 let size = size(
5897 width,
5898 layout.position_map.line_height
5899 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5900 );
5901 let mut quad = fill(Bounds { origin, size }, highlight.background);
5902 if let Some(border_color) = highlight.border {
5903 quad.border_color = border_color;
5904 quad.border_widths = edges
5905 }
5906 window.paint_quad(quad);
5907 };
5908
5909 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5910 None;
5911 for (&new_row, &new_background) in &layout.highlighted_rows {
5912 match &mut current_paint {
5913 &mut Some((current_background, ref mut current_range, mut edges)) => {
5914 let new_range_started = current_background != new_background
5915 || current_range.end.next_row() != new_row;
5916 if new_range_started {
5917 if current_range.end.next_row() == new_row {
5918 edges.bottom = px(0.);
5919 };
5920 paint_highlight(
5921 current_range.start,
5922 current_range.end,
5923 current_background,
5924 edges,
5925 );
5926 let edges = Edges {
5927 top: if current_range.end.next_row() != new_row {
5928 px(1.)
5929 } else {
5930 px(0.)
5931 },
5932 bottom: px(1.),
5933 ..Default::default()
5934 };
5935 current_paint = Some((new_background, new_row..new_row, edges));
5936 continue;
5937 } else {
5938 current_range.end = current_range.end.next_row();
5939 }
5940 }
5941 None => {
5942 let edges = Edges {
5943 top: px(1.),
5944 bottom: px(1.),
5945 ..Default::default()
5946 };
5947 current_paint = Some((new_background, new_row..new_row, edges))
5948 }
5949 };
5950 }
5951 if let Some((color, range, edges)) = current_paint {
5952 paint_highlight(range.start, range.end, color, edges);
5953 }
5954
5955 for (guide_x, active) in layout.wrap_guides.iter() {
5956 let color = if *active {
5957 cx.theme().colors().editor_active_wrap_guide
5958 } else {
5959 cx.theme().colors().editor_wrap_guide
5960 };
5961 window.paint_quad(fill(
5962 Bounds {
5963 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
5964 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5965 },
5966 color,
5967 ));
5968 }
5969 }
5970 })
5971 }
5972
5973 fn paint_indent_guides(
5974 &mut self,
5975 layout: &mut EditorLayout,
5976 window: &mut Window,
5977 cx: &mut App,
5978 ) {
5979 let Some(indent_guides) = &layout.indent_guides else {
5980 return;
5981 };
5982
5983 let faded_color = |color: Hsla, alpha: f32| {
5984 let mut faded = color;
5985 faded.a = alpha;
5986 faded
5987 };
5988
5989 for indent_guide in indent_guides {
5990 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5991 let settings = &indent_guide.settings;
5992
5993 // TODO fixed for now, expose them through themes later
5994 const INDENT_AWARE_ALPHA: f32 = 0.2;
5995 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5996 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5997 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5998
5999 let line_color = match (settings.coloring, indent_guide.active) {
6000 (IndentGuideColoring::Disabled, _) => None,
6001 (IndentGuideColoring::Fixed, false) => {
6002 Some(cx.theme().colors().editor_indent_guide)
6003 }
6004 (IndentGuideColoring::Fixed, true) => {
6005 Some(cx.theme().colors().editor_indent_guide_active)
6006 }
6007 (IndentGuideColoring::IndentAware, false) => {
6008 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6009 }
6010 (IndentGuideColoring::IndentAware, true) => {
6011 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6012 }
6013 };
6014
6015 let background_color = match (settings.background_coloring, indent_guide.active) {
6016 (IndentGuideBackgroundColoring::Disabled, _) => None,
6017 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6018 indent_accent_colors,
6019 INDENT_AWARE_BACKGROUND_ALPHA,
6020 )),
6021 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6022 indent_accent_colors,
6023 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6024 )),
6025 };
6026
6027 let requested_line_width = if indent_guide.active {
6028 settings.active_line_width
6029 } else {
6030 settings.line_width
6031 }
6032 .clamp(1, 10);
6033 let mut line_indicator_width = 0.;
6034 if let Some(color) = line_color {
6035 window.paint_quad(fill(
6036 Bounds {
6037 origin: indent_guide.origin,
6038 size: size(px(requested_line_width as f32), indent_guide.length),
6039 },
6040 color,
6041 ));
6042 line_indicator_width = requested_line_width as f32;
6043 }
6044
6045 if let Some(color) = background_color {
6046 let width = indent_guide.single_indent_width - px(line_indicator_width);
6047 window.paint_quad(fill(
6048 Bounds {
6049 origin: point(
6050 indent_guide.origin.x + px(line_indicator_width),
6051 indent_guide.origin.y,
6052 ),
6053 size: size(width, indent_guide.length),
6054 },
6055 color,
6056 ));
6057 }
6058 }
6059 }
6060
6061 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6062 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6063
6064 let line_height = layout.position_map.line_height;
6065 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6066
6067 for line_layout in layout.line_numbers.values() {
6068 for LineNumberSegment {
6069 shaped_line,
6070 hitbox,
6071 } in &line_layout.segments
6072 {
6073 let Some(hitbox) = hitbox else {
6074 continue;
6075 };
6076
6077 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6078 let color = cx.theme().colors().editor_hover_line_number;
6079
6080 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6081 line.paint(hitbox.origin, line_height, window, cx).log_err()
6082 } else {
6083 shaped_line
6084 .paint(hitbox.origin, line_height, window, cx)
6085 .log_err()
6086 }) else {
6087 continue;
6088 };
6089
6090 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6091 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6092 if is_singleton {
6093 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6094 } else {
6095 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6096 }
6097 }
6098 }
6099 }
6100
6101 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6102 if layout.display_hunks.is_empty() {
6103 return;
6104 }
6105
6106 let line_height = layout.position_map.line_height;
6107 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6108 for (hunk, hitbox) in &layout.display_hunks {
6109 let hunk_to_paint = match hunk {
6110 DisplayDiffHunk::Folded { .. } => {
6111 let hunk_bounds = Self::diff_hunk_bounds(
6112 &layout.position_map.snapshot,
6113 line_height,
6114 layout.gutter_hitbox.bounds,
6115 hunk,
6116 );
6117 Some((
6118 hunk_bounds,
6119 cx.theme().colors().version_control_modified,
6120 Corners::all(px(0.)),
6121 DiffHunkStatus::modified_none(),
6122 ))
6123 }
6124 DisplayDiffHunk::Unfolded {
6125 status,
6126 display_row_range,
6127 ..
6128 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
6129 DiffHunkStatusKind::Added => (
6130 hunk_hitbox.bounds,
6131 cx.theme().colors().version_control_added,
6132 Corners::all(px(0.)),
6133 *status,
6134 ),
6135 DiffHunkStatusKind::Modified => (
6136 hunk_hitbox.bounds,
6137 cx.theme().colors().version_control_modified,
6138 Corners::all(px(0.)),
6139 *status,
6140 ),
6141 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
6142 hunk_hitbox.bounds,
6143 cx.theme().colors().version_control_deleted,
6144 Corners::all(px(0.)),
6145 *status,
6146 ),
6147 DiffHunkStatusKind::Deleted => (
6148 Bounds::new(
6149 point(
6150 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6151 hunk_hitbox.origin.y,
6152 ),
6153 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6154 ),
6155 cx.theme().colors().version_control_deleted,
6156 Corners::all(1. * line_height),
6157 *status,
6158 ),
6159 }),
6160 };
6161
6162 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6163 // Flatten the background color with the editor color to prevent
6164 // elements below transparent hunks from showing through
6165 let flattened_background_color = cx
6166 .theme()
6167 .colors()
6168 .editor_background
6169 .blend(background_color);
6170
6171 if !Self::diff_hunk_hollow(status, cx) {
6172 window.paint_quad(quad(
6173 hunk_bounds,
6174 corner_radii,
6175 flattened_background_color,
6176 Edges::default(),
6177 transparent_black(),
6178 BorderStyle::default(),
6179 ));
6180 } else {
6181 let flattened_unstaged_background_color = cx
6182 .theme()
6183 .colors()
6184 .editor_background
6185 .blend(background_color.opacity(0.3));
6186
6187 window.paint_quad(quad(
6188 hunk_bounds,
6189 corner_radii,
6190 flattened_unstaged_background_color,
6191 Edges::all(px(1.0)),
6192 flattened_background_color,
6193 BorderStyle::Solid,
6194 ));
6195 }
6196 }
6197 }
6198 });
6199 }
6200
6201 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6202 (0.275 * line_height).floor()
6203 }
6204
6205 fn diff_hunk_bounds(
6206 snapshot: &EditorSnapshot,
6207 line_height: Pixels,
6208 gutter_bounds: Bounds<Pixels>,
6209 hunk: &DisplayDiffHunk,
6210 ) -> Bounds<Pixels> {
6211 let scroll_position = snapshot.scroll_position();
6212 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6213 let gutter_strip_width = Self::gutter_strip_width(line_height);
6214
6215 match hunk {
6216 DisplayDiffHunk::Folded { display_row, .. } => {
6217 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6218 - scroll_top)
6219 .into();
6220 let end_y = start_y + line_height;
6221 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6222 let highlight_size = size(gutter_strip_width, end_y - start_y);
6223 Bounds::new(highlight_origin, highlight_size)
6224 }
6225 DisplayDiffHunk::Unfolded {
6226 display_row_range,
6227 status,
6228 ..
6229 } => {
6230 if status.is_deleted() && display_row_range.is_empty() {
6231 let row = display_row_range.start;
6232
6233 let offset = ScrollPixelOffset::from(line_height / 2.);
6234 let start_y =
6235 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6236 .into();
6237 let end_y = start_y + line_height;
6238
6239 let width = (0.35 * line_height).floor();
6240 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6241 let highlight_size = size(width, end_y - start_y);
6242 Bounds::new(highlight_origin, highlight_size)
6243 } else {
6244 let start_row = display_row_range.start;
6245 let end_row = display_row_range.end;
6246 // If we're in a multibuffer, row range span might include an
6247 // excerpt header, so if we were to draw the marker straight away,
6248 // the hunk might include the rows of that header.
6249 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6250 // Instead, we simply check whether the range we're dealing with includes
6251 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6252 let end_row_in_current_excerpt = snapshot
6253 .blocks_in_range(start_row..end_row)
6254 .find_map(|(start_row, block)| {
6255 if matches!(
6256 block,
6257 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6258 ) {
6259 Some(start_row)
6260 } else {
6261 None
6262 }
6263 })
6264 .unwrap_or(end_row);
6265
6266 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6267 - scroll_top)
6268 .into();
6269 let end_y = Pixels::from(
6270 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6271 - scroll_top,
6272 );
6273
6274 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6275 let highlight_size = size(gutter_strip_width, end_y - start_y);
6276 Bounds::new(highlight_origin, highlight_size)
6277 }
6278 }
6279 }
6280 }
6281
6282 fn paint_gutter_indicators(
6283 &self,
6284 layout: &mut EditorLayout,
6285 window: &mut Window,
6286 cx: &mut App,
6287 ) {
6288 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6289 window.with_element_namespace("crease_toggles", |window| {
6290 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6291 crease_toggle.paint(window, cx);
6292 }
6293 });
6294
6295 window.with_element_namespace("expand_toggles", |window| {
6296 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6297 expand_toggle.paint(window, cx);
6298 }
6299 });
6300
6301 for breakpoint in layout.breakpoints.iter_mut() {
6302 breakpoint.paint(window, cx);
6303 }
6304
6305 for test_indicator in layout.test_indicators.iter_mut() {
6306 test_indicator.paint(window, cx);
6307 }
6308 });
6309 }
6310
6311 fn paint_gutter_highlights(
6312 &self,
6313 layout: &mut EditorLayout,
6314 window: &mut Window,
6315 cx: &mut App,
6316 ) {
6317 for (_, hunk_hitbox) in &layout.display_hunks {
6318 if let Some(hunk_hitbox) = hunk_hitbox
6319 && !self
6320 .editor
6321 .read(cx)
6322 .buffer()
6323 .read(cx)
6324 .all_diff_hunks_expanded()
6325 {
6326 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6327 }
6328 }
6329
6330 let show_git_gutter = layout
6331 .position_map
6332 .snapshot
6333 .show_git_diff_gutter
6334 .unwrap_or_else(|| {
6335 matches!(
6336 ProjectSettings::get_global(cx).git.git_gutter,
6337 GitGutterSetting::TrackedFiles
6338 )
6339 });
6340 if show_git_gutter {
6341 Self::paint_gutter_diff_hunks(layout, window, cx)
6342 }
6343
6344 let highlight_width = 0.275 * layout.position_map.line_height;
6345 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6346 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6347 for (range, color) in &layout.highlighted_gutter_ranges {
6348 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6349 layout.visible_display_row_range.start - DisplayRow(1)
6350 } else {
6351 range.start.row()
6352 };
6353 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6354 layout.visible_display_row_range.end + DisplayRow(1)
6355 } else {
6356 range.end.row()
6357 };
6358
6359 let start_y = layout.gutter_hitbox.top()
6360 + Pixels::from(
6361 start_row.0 as f64
6362 * ScrollPixelOffset::from(layout.position_map.line_height)
6363 - layout.position_map.scroll_pixel_position.y,
6364 );
6365 let end_y = layout.gutter_hitbox.top()
6366 + Pixels::from(
6367 (end_row.0 + 1) as f64
6368 * ScrollPixelOffset::from(layout.position_map.line_height)
6369 - layout.position_map.scroll_pixel_position.y,
6370 );
6371 let bounds = Bounds::from_corners(
6372 point(layout.gutter_hitbox.left(), start_y),
6373 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6374 );
6375 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6376 }
6377 });
6378 }
6379
6380 fn paint_blamed_display_rows(
6381 &self,
6382 layout: &mut EditorLayout,
6383 window: &mut Window,
6384 cx: &mut App,
6385 ) {
6386 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6387 return;
6388 };
6389
6390 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6391 for mut blame_element in blamed_display_rows.into_iter() {
6392 blame_element.paint(window, cx);
6393 }
6394 })
6395 }
6396
6397 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6398 window.with_content_mask(
6399 Some(ContentMask {
6400 bounds: layout.position_map.text_hitbox.bounds,
6401 }),
6402 |window| {
6403 let editor = self.editor.read(cx);
6404 if editor.mouse_cursor_hidden {
6405 window.set_window_cursor_style(CursorStyle::None);
6406 } else if let SelectionDragState::ReadyToDrag {
6407 mouse_down_time, ..
6408 } = &editor.selection_drag_state
6409 {
6410 let drag_and_drop_delay = Duration::from_millis(
6411 EditorSettings::get_global(cx)
6412 .drag_and_drop_selection
6413 .delay
6414 .0,
6415 );
6416 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6417 window.set_cursor_style(
6418 CursorStyle::DragCopy,
6419 &layout.position_map.text_hitbox,
6420 );
6421 }
6422 } else if matches!(
6423 editor.selection_drag_state,
6424 SelectionDragState::Dragging { .. }
6425 ) {
6426 window
6427 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6428 } else if editor
6429 .hovered_link_state
6430 .as_ref()
6431 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6432 {
6433 window.set_cursor_style(
6434 CursorStyle::PointingHand,
6435 &layout.position_map.text_hitbox,
6436 );
6437 } else {
6438 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6439 };
6440
6441 self.paint_lines_background(layout, window, cx);
6442 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6443 self.paint_document_colors(layout, window);
6444 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6445 self.paint_redactions(layout, window);
6446 self.paint_cursors(layout, window, cx);
6447 self.paint_inline_diagnostics(layout, window, cx);
6448 self.paint_inline_blame(layout, window, cx);
6449 self.paint_inline_code_actions(layout, window, cx);
6450 self.paint_diff_hunk_controls(layout, window, cx);
6451 window.with_element_namespace("crease_trailers", |window| {
6452 for trailer in layout.crease_trailers.iter_mut().flatten() {
6453 trailer.element.paint(window, cx);
6454 }
6455 });
6456 },
6457 )
6458 }
6459
6460 fn paint_highlights(
6461 &mut self,
6462 layout: &mut EditorLayout,
6463 window: &mut Window,
6464 cx: &mut App,
6465 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6466 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6467 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6468 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6469 for (range, color) in &layout.highlighted_ranges {
6470 self.paint_highlighted_range(
6471 range.clone(),
6472 true,
6473 *color,
6474 Pixels::ZERO,
6475 line_end_overshoot,
6476 layout,
6477 window,
6478 );
6479 }
6480
6481 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6482 0.15 * layout.position_map.line_height
6483 } else {
6484 Pixels::ZERO
6485 };
6486
6487 for (player_color, selections) in &layout.selections {
6488 for selection in selections.iter() {
6489 self.paint_highlighted_range(
6490 selection.range.clone(),
6491 true,
6492 player_color.selection,
6493 corner_radius,
6494 corner_radius * 2.,
6495 layout,
6496 window,
6497 );
6498
6499 if selection.is_local && !selection.range.is_empty() {
6500 invisible_display_ranges.push(selection.range.clone());
6501 }
6502 }
6503 }
6504 invisible_display_ranges
6505 })
6506 }
6507
6508 fn paint_lines(
6509 &mut self,
6510 invisible_display_ranges: &[Range<DisplayPoint>],
6511 layout: &mut EditorLayout,
6512 window: &mut Window,
6513 cx: &mut App,
6514 ) {
6515 let whitespace_setting = self
6516 .editor
6517 .read(cx)
6518 .buffer
6519 .read(cx)
6520 .language_settings(cx)
6521 .show_whitespaces;
6522
6523 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6524 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6525 line_with_invisibles.draw(
6526 layout,
6527 row,
6528 layout.content_origin,
6529 whitespace_setting,
6530 invisible_display_ranges,
6531 window,
6532 cx,
6533 )
6534 }
6535
6536 for line_element in &mut layout.line_elements {
6537 line_element.paint(window, cx);
6538 }
6539 }
6540
6541 fn paint_sticky_headers(
6542 &mut self,
6543 layout: &mut EditorLayout,
6544 window: &mut Window,
6545 cx: &mut App,
6546 ) {
6547 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6548 return;
6549 };
6550
6551 if sticky_headers.lines.is_empty() {
6552 layout.sticky_headers = Some(sticky_headers);
6553 return;
6554 }
6555
6556 let whitespace_setting = self
6557 .editor
6558 .read(cx)
6559 .buffer
6560 .read(cx)
6561 .language_settings(cx)
6562 .show_whitespaces;
6563 sticky_headers.paint(layout, whitespace_setting, window, cx);
6564
6565 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6566 .lines
6567 .iter()
6568 .map(|line| line.hitbox.clone())
6569 .collect();
6570 let hovered_hitbox = sticky_header_hitboxes
6571 .iter()
6572 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6573
6574 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6575 if !phase.bubble() {
6576 return;
6577 }
6578
6579 let current_hover = sticky_header_hitboxes
6580 .iter()
6581 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6582 if hovered_hitbox != current_hover {
6583 window.refresh();
6584 }
6585 });
6586
6587 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6588 let editor = self.editor.clone();
6589 let hitbox = line.hitbox.clone();
6590 let target_anchor = line.target_anchor;
6591 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6592 if !phase.bubble() {
6593 return;
6594 }
6595
6596 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6597 editor.update(cx, |editor, cx| {
6598 editor.change_selections(
6599 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6600 window,
6601 cx,
6602 |selections| selections.select_ranges([target_anchor..target_anchor]),
6603 );
6604 cx.stop_propagation();
6605 });
6606 }
6607 });
6608 }
6609
6610 let text_bounds = layout.position_map.text_hitbox.bounds;
6611 let border_top = text_bounds.top()
6612 + sticky_headers.lines.last().unwrap().offset
6613 + layout.position_map.line_height;
6614 let separator_height = px(1.);
6615 let border_bounds = Bounds::from_corners(
6616 point(layout.gutter_hitbox.bounds.left(), border_top),
6617 point(text_bounds.right(), border_top + separator_height),
6618 );
6619 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6620
6621 layout.sticky_headers = Some(sticky_headers);
6622 }
6623
6624 fn paint_lines_background(
6625 &mut self,
6626 layout: &mut EditorLayout,
6627 window: &mut Window,
6628 cx: &mut App,
6629 ) {
6630 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6631 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6632 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6633 }
6634 }
6635
6636 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6637 if layout.redacted_ranges.is_empty() {
6638 return;
6639 }
6640
6641 let line_end_overshoot = layout.line_end_overshoot();
6642
6643 // A softer than perfect black
6644 let redaction_color = gpui::rgb(0x0e1111);
6645
6646 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6647 for range in layout.redacted_ranges.iter() {
6648 self.paint_highlighted_range(
6649 range.clone(),
6650 true,
6651 redaction_color.into(),
6652 Pixels::ZERO,
6653 line_end_overshoot,
6654 layout,
6655 window,
6656 );
6657 }
6658 });
6659 }
6660
6661 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6662 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6663 return;
6664 };
6665 if image_colors.is_empty()
6666 || colors_render_mode == &DocumentColorsRenderMode::None
6667 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6668 {
6669 return;
6670 }
6671
6672 let line_end_overshoot = layout.line_end_overshoot();
6673
6674 for (range, color) in image_colors {
6675 match colors_render_mode {
6676 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6677 DocumentColorsRenderMode::Background => {
6678 self.paint_highlighted_range(
6679 range.clone(),
6680 true,
6681 *color,
6682 Pixels::ZERO,
6683 line_end_overshoot,
6684 layout,
6685 window,
6686 );
6687 }
6688 DocumentColorsRenderMode::Border => {
6689 self.paint_highlighted_range(
6690 range.clone(),
6691 false,
6692 *color,
6693 Pixels::ZERO,
6694 line_end_overshoot,
6695 layout,
6696 window,
6697 );
6698 }
6699 }
6700 }
6701 }
6702
6703 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6704 for cursor in &mut layout.visible_cursors {
6705 cursor.paint(layout.content_origin, window, cx);
6706 }
6707 }
6708
6709 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6710 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6711 return;
6712 };
6713 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6714
6715 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6716 let hitbox = &scrollbar_layout.hitbox;
6717 if scrollbars_layout.visible {
6718 let scrollbar_edges = match axis {
6719 ScrollbarAxis::Horizontal => Edges {
6720 top: Pixels::ZERO,
6721 right: Pixels::ZERO,
6722 bottom: Pixels::ZERO,
6723 left: Pixels::ZERO,
6724 },
6725 ScrollbarAxis::Vertical => Edges {
6726 top: Pixels::ZERO,
6727 right: Pixels::ZERO,
6728 bottom: Pixels::ZERO,
6729 left: ScrollbarLayout::BORDER_WIDTH,
6730 },
6731 };
6732
6733 window.paint_layer(hitbox.bounds, |window| {
6734 window.paint_quad(quad(
6735 hitbox.bounds,
6736 Corners::default(),
6737 cx.theme().colors().scrollbar_track_background,
6738 scrollbar_edges,
6739 cx.theme().colors().scrollbar_track_border,
6740 BorderStyle::Solid,
6741 ));
6742
6743 if axis == ScrollbarAxis::Vertical {
6744 let fast_markers =
6745 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6746 // Refresh slow scrollbar markers in the background. Below, we
6747 // paint whatever markers have already been computed.
6748 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6749
6750 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6751 for marker in markers.iter().chain(&fast_markers) {
6752 let mut marker = marker.clone();
6753 marker.bounds.origin += hitbox.origin;
6754 window.paint_quad(marker);
6755 }
6756 }
6757
6758 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6759 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6760 ScrollbarThumbState::Dragging => {
6761 cx.theme().colors().scrollbar_thumb_active_background
6762 }
6763 ScrollbarThumbState::Hovered => {
6764 cx.theme().colors().scrollbar_thumb_hover_background
6765 }
6766 ScrollbarThumbState::Idle => {
6767 cx.theme().colors().scrollbar_thumb_background
6768 }
6769 };
6770 window.paint_quad(quad(
6771 thumb_bounds,
6772 Corners::default(),
6773 scrollbar_thumb_color,
6774 scrollbar_edges,
6775 cx.theme().colors().scrollbar_thumb_border,
6776 BorderStyle::Solid,
6777 ));
6778
6779 if any_scrollbar_dragged {
6780 window.set_window_cursor_style(CursorStyle::Arrow);
6781 } else {
6782 window.set_cursor_style(CursorStyle::Arrow, hitbox);
6783 }
6784 }
6785 })
6786 }
6787 }
6788
6789 window.on_mouse_event({
6790 let editor = self.editor.clone();
6791 let scrollbars_layout = scrollbars_layout.clone();
6792
6793 let mut mouse_position = window.mouse_position();
6794 move |event: &MouseMoveEvent, phase, window, cx| {
6795 if phase == DispatchPhase::Capture {
6796 return;
6797 }
6798
6799 editor.update(cx, |editor, cx| {
6800 if let Some((scrollbar_layout, axis)) = event
6801 .pressed_button
6802 .filter(|button| *button == MouseButton::Left)
6803 .and(editor.scroll_manager.dragging_scrollbar_axis())
6804 .and_then(|axis| {
6805 scrollbars_layout
6806 .iter_scrollbars()
6807 .find(|(_, a)| *a == axis)
6808 })
6809 {
6810 let ScrollbarLayout {
6811 hitbox,
6812 text_unit_size,
6813 ..
6814 } = scrollbar_layout;
6815
6816 let old_position = mouse_position.along(axis);
6817 let new_position = event.position.along(axis);
6818 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6819 .contains(&old_position)
6820 {
6821 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6822 (p + ScrollOffset::from(
6823 (new_position - old_position) / *text_unit_size,
6824 ))
6825 .max(0.)
6826 });
6827 editor.set_scroll_position(position, window, cx);
6828 }
6829
6830 editor.scroll_manager.show_scrollbars(window, cx);
6831 cx.stop_propagation();
6832 } else if let Some((layout, axis)) = scrollbars_layout
6833 .get_hovered_axis(window)
6834 .filter(|_| !event.dragging())
6835 {
6836 if layout.thumb_hovered(&event.position) {
6837 editor
6838 .scroll_manager
6839 .set_hovered_scroll_thumb_axis(axis, cx);
6840 } else {
6841 editor.scroll_manager.reset_scrollbar_state(cx);
6842 }
6843
6844 editor.scroll_manager.show_scrollbars(window, cx);
6845 } else {
6846 editor.scroll_manager.reset_scrollbar_state(cx);
6847 }
6848
6849 mouse_position = event.position;
6850 })
6851 }
6852 });
6853
6854 if any_scrollbar_dragged {
6855 window.on_mouse_event({
6856 let editor = self.editor.clone();
6857 move |_: &MouseUpEvent, phase, window, cx| {
6858 if phase == DispatchPhase::Capture {
6859 return;
6860 }
6861
6862 editor.update(cx, |editor, cx| {
6863 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6864 editor
6865 .scroll_manager
6866 .set_hovered_scroll_thumb_axis(axis, cx);
6867 } else {
6868 editor.scroll_manager.reset_scrollbar_state(cx);
6869 }
6870 cx.stop_propagation();
6871 });
6872 }
6873 });
6874 } else {
6875 window.on_mouse_event({
6876 let editor = self.editor.clone();
6877
6878 move |event: &MouseDownEvent, phase, window, cx| {
6879 if phase == DispatchPhase::Capture {
6880 return;
6881 }
6882 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6883 else {
6884 return;
6885 };
6886
6887 let ScrollbarLayout {
6888 hitbox,
6889 visible_range,
6890 text_unit_size,
6891 thumb_bounds,
6892 ..
6893 } = scrollbar_layout;
6894
6895 let Some(thumb_bounds) = thumb_bounds else {
6896 return;
6897 };
6898
6899 editor.update(cx, |editor, cx| {
6900 editor
6901 .scroll_manager
6902 .set_dragged_scroll_thumb_axis(axis, cx);
6903
6904 let event_position = event.position.along(axis);
6905
6906 if event_position < thumb_bounds.origin.along(axis)
6907 || thumb_bounds.bottom_right().along(axis) < event_position
6908 {
6909 let center_position = ((event_position - hitbox.origin.along(axis))
6910 / *text_unit_size)
6911 .round() as u32;
6912 let start_position = center_position.saturating_sub(
6913 (visible_range.end - visible_range.start) as u32 / 2,
6914 );
6915
6916 let position = editor
6917 .scroll_position(cx)
6918 .apply_along(axis, |_| start_position as ScrollOffset);
6919
6920 editor.set_scroll_position(position, window, cx);
6921 } else {
6922 editor.scroll_manager.show_scrollbars(window, cx);
6923 }
6924
6925 cx.stop_propagation();
6926 });
6927 }
6928 });
6929 }
6930 }
6931
6932 fn collect_fast_scrollbar_markers(
6933 &self,
6934 layout: &EditorLayout,
6935 scrollbar_layout: &ScrollbarLayout,
6936 cx: &mut App,
6937 ) -> Vec<PaintQuad> {
6938 const LIMIT: usize = 100;
6939 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6940 return vec![];
6941 }
6942 let cursor_ranges = layout
6943 .cursors
6944 .iter()
6945 .map(|(point, color)| ColoredRange {
6946 start: point.row(),
6947 end: point.row(),
6948 color: *color,
6949 })
6950 .collect_vec();
6951 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6952 }
6953
6954 fn refresh_slow_scrollbar_markers(
6955 &self,
6956 layout: &EditorLayout,
6957 scrollbar_layout: &ScrollbarLayout,
6958 window: &mut Window,
6959 cx: &mut App,
6960 ) {
6961 self.editor.update(cx, |editor, cx| {
6962 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
6963 || !editor
6964 .scrollbar_marker_state
6965 .should_refresh(scrollbar_layout.hitbox.size)
6966 {
6967 return;
6968 }
6969
6970 let scrollbar_layout = scrollbar_layout.clone();
6971 let background_highlights = editor.background_highlights.clone();
6972 let snapshot = layout.position_map.snapshot.clone();
6973 let theme = cx.theme().clone();
6974 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6975
6976 editor.scrollbar_marker_state.dirty = false;
6977 editor.scrollbar_marker_state.pending_refresh =
6978 Some(cx.spawn_in(window, async move |editor, cx| {
6979 let scrollbar_size = scrollbar_layout.hitbox.size;
6980 let scrollbar_markers = cx
6981 .background_spawn(async move {
6982 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
6983 let mut marker_quads = Vec::new();
6984 if scrollbar_settings.git_diff {
6985 let marker_row_ranges =
6986 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
6987 let start_display_row =
6988 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6989 .to_display_point(&snapshot.display_snapshot)
6990 .row();
6991 let mut end_display_row =
6992 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6993 .to_display_point(&snapshot.display_snapshot)
6994 .row();
6995 if end_display_row != start_display_row {
6996 end_display_row.0 -= 1;
6997 }
6998 let color = match &hunk.status().kind {
6999 DiffHunkStatusKind::Added => {
7000 theme.colors().version_control_added
7001 }
7002 DiffHunkStatusKind::Modified => {
7003 theme.colors().version_control_modified
7004 }
7005 DiffHunkStatusKind::Deleted => {
7006 theme.colors().version_control_deleted
7007 }
7008 };
7009 ColoredRange {
7010 start: start_display_row,
7011 end: end_display_row,
7012 color,
7013 }
7014 });
7015
7016 marker_quads.extend(
7017 scrollbar_layout
7018 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7019 );
7020 }
7021
7022 for (background_highlight_id, (_, background_ranges)) in
7023 background_highlights.iter()
7024 {
7025 let is_search_highlights = *background_highlight_id
7026 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
7027 let is_text_highlights = *background_highlight_id
7028 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
7029 let is_symbol_occurrences = *background_highlight_id
7030 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
7031 || *background_highlight_id
7032 == HighlightKey::Type(
7033 TypeId::of::<DocumentHighlightWrite>(),
7034 );
7035 if (is_search_highlights && scrollbar_settings.search_results)
7036 || (is_text_highlights && scrollbar_settings.selected_text)
7037 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7038 {
7039 let mut color = theme.status().info;
7040 if is_symbol_occurrences {
7041 color.fade_out(0.5);
7042 }
7043 let marker_row_ranges = background_ranges.iter().map(|range| {
7044 let display_start = range
7045 .start
7046 .to_display_point(&snapshot.display_snapshot);
7047 let display_end =
7048 range.end.to_display_point(&snapshot.display_snapshot);
7049 ColoredRange {
7050 start: display_start.row(),
7051 end: display_end.row(),
7052 color,
7053 }
7054 });
7055 marker_quads.extend(
7056 scrollbar_layout
7057 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7058 );
7059 }
7060 }
7061
7062 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7063 let diagnostics = snapshot
7064 .buffer_snapshot()
7065 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7066 // Don't show diagnostics the user doesn't care about
7067 .filter(|diagnostic| {
7068 match (
7069 scrollbar_settings.diagnostics,
7070 diagnostic.diagnostic.severity,
7071 ) {
7072 (ScrollbarDiagnostics::All, _) => true,
7073 (
7074 ScrollbarDiagnostics::Error,
7075 lsp::DiagnosticSeverity::ERROR,
7076 ) => true,
7077 (
7078 ScrollbarDiagnostics::Warning,
7079 lsp::DiagnosticSeverity::ERROR
7080 | lsp::DiagnosticSeverity::WARNING,
7081 ) => true,
7082 (
7083 ScrollbarDiagnostics::Information,
7084 lsp::DiagnosticSeverity::ERROR
7085 | lsp::DiagnosticSeverity::WARNING
7086 | lsp::DiagnosticSeverity::INFORMATION,
7087 ) => true,
7088 (_, _) => false,
7089 }
7090 })
7091 // We want to sort by severity, in order to paint the most severe diagnostics last.
7092 .sorted_by_key(|diagnostic| {
7093 std::cmp::Reverse(diagnostic.diagnostic.severity)
7094 });
7095
7096 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7097 let start_display = diagnostic
7098 .range
7099 .start
7100 .to_display_point(&snapshot.display_snapshot);
7101 let end_display = diagnostic
7102 .range
7103 .end
7104 .to_display_point(&snapshot.display_snapshot);
7105 let color = match diagnostic.diagnostic.severity {
7106 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7107 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7108 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7109 _ => theme.status().hint,
7110 };
7111 ColoredRange {
7112 start: start_display.row(),
7113 end: end_display.row(),
7114 color,
7115 }
7116 });
7117 marker_quads.extend(
7118 scrollbar_layout
7119 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7120 );
7121 }
7122
7123 Arc::from(marker_quads)
7124 })
7125 .await;
7126
7127 editor.update(cx, |editor, cx| {
7128 editor.scrollbar_marker_state.markers = scrollbar_markers;
7129 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7130 editor.scrollbar_marker_state.pending_refresh = None;
7131 cx.notify();
7132 })?;
7133
7134 Ok(())
7135 }));
7136 });
7137 }
7138
7139 fn paint_highlighted_range(
7140 &self,
7141 range: Range<DisplayPoint>,
7142 fill: bool,
7143 color: Hsla,
7144 corner_radius: Pixels,
7145 line_end_overshoot: Pixels,
7146 layout: &EditorLayout,
7147 window: &mut Window,
7148 ) {
7149 let start_row = layout.visible_display_row_range.start;
7150 let end_row = layout.visible_display_row_range.end;
7151 if range.start != range.end {
7152 let row_range = if range.end.column() == 0 {
7153 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7154 } else {
7155 cmp::max(range.start.row(), start_row)
7156 ..cmp::min(range.end.row().next_row(), end_row)
7157 };
7158
7159 let highlighted_range = HighlightedRange {
7160 color,
7161 line_height: layout.position_map.line_height,
7162 corner_radius,
7163 start_y: layout.content_origin.y
7164 + Pixels::from(
7165 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7166 * ScrollOffset::from(layout.position_map.line_height),
7167 ),
7168 lines: row_range
7169 .iter_rows()
7170 .map(|row| {
7171 let line_layout =
7172 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7173 HighlightedRangeLine {
7174 start_x: if row == range.start.row() {
7175 layout.content_origin.x
7176 + Pixels::from(
7177 ScrollPixelOffset::from(
7178 line_layout.x_for_index(range.start.column() as usize),
7179 ) - layout.position_map.scroll_pixel_position.x,
7180 )
7181 } else {
7182 layout.content_origin.x
7183 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7184 },
7185 end_x: if row == range.end.row() {
7186 layout.content_origin.x
7187 + Pixels::from(
7188 ScrollPixelOffset::from(
7189 line_layout.x_for_index(range.end.column() as usize),
7190 ) - layout.position_map.scroll_pixel_position.x,
7191 )
7192 } else {
7193 Pixels::from(
7194 ScrollPixelOffset::from(
7195 layout.content_origin.x
7196 + line_layout.width
7197 + line_end_overshoot,
7198 ) - layout.position_map.scroll_pixel_position.x,
7199 )
7200 },
7201 }
7202 })
7203 .collect(),
7204 };
7205
7206 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7207 }
7208 }
7209
7210 fn paint_inline_diagnostics(
7211 &mut self,
7212 layout: &mut EditorLayout,
7213 window: &mut Window,
7214 cx: &mut App,
7215 ) {
7216 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7217 inline_diagnostic.1.paint(window, cx);
7218 }
7219 }
7220
7221 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7222 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7223 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7224 blame_layout.element.paint(window, cx);
7225 })
7226 }
7227 }
7228
7229 fn paint_inline_code_actions(
7230 &mut self,
7231 layout: &mut EditorLayout,
7232 window: &mut Window,
7233 cx: &mut App,
7234 ) {
7235 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7236 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7237 inline_code_actions.paint(window, cx);
7238 })
7239 }
7240 }
7241
7242 fn paint_diff_hunk_controls(
7243 &mut self,
7244 layout: &mut EditorLayout,
7245 window: &mut Window,
7246 cx: &mut App,
7247 ) {
7248 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7249 diff_hunk_control.paint(window, cx);
7250 }
7251 }
7252
7253 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7254 if let Some(mut layout) = layout.minimap.take() {
7255 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7256 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7257
7258 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7259 window.with_element_namespace("minimap", |window| {
7260 layout.minimap.paint(window, cx);
7261 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7262 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7263 ScrollbarThumbState::Idle => {
7264 cx.theme().colors().minimap_thumb_background
7265 }
7266 ScrollbarThumbState::Hovered => {
7267 cx.theme().colors().minimap_thumb_hover_background
7268 }
7269 ScrollbarThumbState::Dragging => {
7270 cx.theme().colors().minimap_thumb_active_background
7271 }
7272 };
7273 let minimap_thumb_border = match layout.thumb_border_style {
7274 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7275 MinimapThumbBorder::LeftOnly => Edges {
7276 left: ScrollbarLayout::BORDER_WIDTH,
7277 ..Default::default()
7278 },
7279 MinimapThumbBorder::LeftOpen => Edges {
7280 right: ScrollbarLayout::BORDER_WIDTH,
7281 top: ScrollbarLayout::BORDER_WIDTH,
7282 bottom: ScrollbarLayout::BORDER_WIDTH,
7283 ..Default::default()
7284 },
7285 MinimapThumbBorder::RightOpen => Edges {
7286 left: ScrollbarLayout::BORDER_WIDTH,
7287 top: ScrollbarLayout::BORDER_WIDTH,
7288 bottom: ScrollbarLayout::BORDER_WIDTH,
7289 ..Default::default()
7290 },
7291 MinimapThumbBorder::None => Default::default(),
7292 };
7293
7294 window.paint_layer(minimap_hitbox.bounds, |window| {
7295 window.paint_quad(quad(
7296 thumb_bounds,
7297 Corners::default(),
7298 minimap_thumb_color,
7299 minimap_thumb_border,
7300 cx.theme().colors().minimap_thumb_border,
7301 BorderStyle::Solid,
7302 ));
7303 });
7304 }
7305 });
7306 });
7307
7308 if dragging_minimap {
7309 window.set_window_cursor_style(CursorStyle::Arrow);
7310 } else {
7311 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7312 }
7313
7314 let minimap_axis = ScrollbarAxis::Vertical;
7315 let pixels_per_line = Pixels::from(
7316 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7317 )
7318 .min(layout.minimap_line_height);
7319
7320 let mut mouse_position = window.mouse_position();
7321
7322 window.on_mouse_event({
7323 let editor = self.editor.clone();
7324
7325 let minimap_hitbox = minimap_hitbox.clone();
7326
7327 move |event: &MouseMoveEvent, phase, window, cx| {
7328 if phase == DispatchPhase::Capture {
7329 return;
7330 }
7331
7332 editor.update(cx, |editor, cx| {
7333 if event.pressed_button == Some(MouseButton::Left)
7334 && editor.scroll_manager.is_dragging_minimap()
7335 {
7336 let old_position = mouse_position.along(minimap_axis);
7337 let new_position = event.position.along(minimap_axis);
7338 if (minimap_hitbox.origin.along(minimap_axis)
7339 ..minimap_hitbox.bottom_right().along(minimap_axis))
7340 .contains(&old_position)
7341 {
7342 let position =
7343 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7344 (p + ScrollPixelOffset::from(
7345 (new_position - old_position) / pixels_per_line,
7346 ))
7347 .max(0.)
7348 });
7349
7350 editor.set_scroll_position(position, window, cx);
7351 }
7352 cx.stop_propagation();
7353 } else if minimap_hitbox.is_hovered(window) {
7354 editor.scroll_manager.set_is_hovering_minimap_thumb(
7355 !event.dragging()
7356 && layout
7357 .thumb_layout
7358 .thumb_bounds
7359 .is_some_and(|bounds| bounds.contains(&event.position)),
7360 cx,
7361 );
7362
7363 // Stop hover events from propagating to the
7364 // underlying editor if the minimap hitbox is hovered
7365 if !event.dragging() {
7366 cx.stop_propagation();
7367 }
7368 } else {
7369 editor.scroll_manager.hide_minimap_thumb(cx);
7370 }
7371 mouse_position = event.position;
7372 });
7373 }
7374 });
7375
7376 if dragging_minimap {
7377 window.on_mouse_event({
7378 let editor = self.editor.clone();
7379 move |event: &MouseUpEvent, phase, window, cx| {
7380 if phase == DispatchPhase::Capture {
7381 return;
7382 }
7383
7384 editor.update(cx, |editor, cx| {
7385 if minimap_hitbox.is_hovered(window) {
7386 editor.scroll_manager.set_is_hovering_minimap_thumb(
7387 layout
7388 .thumb_layout
7389 .thumb_bounds
7390 .is_some_and(|bounds| bounds.contains(&event.position)),
7391 cx,
7392 );
7393 } else {
7394 editor.scroll_manager.hide_minimap_thumb(cx);
7395 }
7396 cx.stop_propagation();
7397 });
7398 }
7399 });
7400 } else {
7401 window.on_mouse_event({
7402 let editor = self.editor.clone();
7403
7404 move |event: &MouseDownEvent, phase, window, cx| {
7405 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7406 return;
7407 }
7408
7409 let event_position = event.position;
7410
7411 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7412 return;
7413 };
7414
7415 editor.update(cx, |editor, cx| {
7416 if !thumb_bounds.contains(&event_position) {
7417 let click_position =
7418 event_position.relative_to(&minimap_hitbox.origin).y;
7419
7420 let top_position = (click_position
7421 - thumb_bounds.size.along(minimap_axis) / 2.0)
7422 .max(Pixels::ZERO);
7423
7424 let scroll_offset = (layout.minimap_scroll_top
7425 + ScrollPixelOffset::from(
7426 top_position / layout.minimap_line_height,
7427 ))
7428 .min(layout.max_scroll_top);
7429
7430 let scroll_position = editor
7431 .scroll_position(cx)
7432 .apply_along(minimap_axis, |_| scroll_offset);
7433 editor.set_scroll_position(scroll_position, window, cx);
7434 }
7435
7436 editor.scroll_manager.set_is_dragging_minimap(cx);
7437 cx.stop_propagation();
7438 });
7439 }
7440 });
7441 }
7442 }
7443 }
7444
7445 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7446 for mut block in layout.blocks.drain(..) {
7447 if block.overlaps_gutter {
7448 block.element.paint(window, cx);
7449 } else {
7450 let mut bounds = layout.hitbox.bounds;
7451 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7452 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7453 block.element.paint(window, cx);
7454 })
7455 }
7456 }
7457 }
7458
7459 fn paint_edit_prediction_popover(
7460 &mut self,
7461 layout: &mut EditorLayout,
7462 window: &mut Window,
7463 cx: &mut App,
7464 ) {
7465 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7466 edit_prediction_popover.paint(window, cx);
7467 }
7468 }
7469
7470 fn paint_mouse_context_menu(
7471 &mut self,
7472 layout: &mut EditorLayout,
7473 window: &mut Window,
7474 cx: &mut App,
7475 ) {
7476 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7477 mouse_context_menu.paint(window, cx);
7478 }
7479 }
7480
7481 fn paint_scroll_wheel_listener(
7482 &mut self,
7483 layout: &EditorLayout,
7484 window: &mut Window,
7485 cx: &mut App,
7486 ) {
7487 window.on_mouse_event({
7488 let position_map = layout.position_map.clone();
7489 let editor = self.editor.clone();
7490 let hitbox = layout.hitbox.clone();
7491 let mut delta = ScrollDelta::default();
7492
7493 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7494 // accidentally turn off their scrolling.
7495 let base_scroll_sensitivity =
7496 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7497
7498 // Use a minimum fast_scroll_sensitivity for same reason above
7499 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7500 .fast_scroll_sensitivity
7501 .max(0.01);
7502
7503 move |event: &ScrollWheelEvent, phase, window, cx| {
7504 let scroll_sensitivity = {
7505 if event.modifiers.alt {
7506 fast_scroll_sensitivity
7507 } else {
7508 base_scroll_sensitivity
7509 }
7510 };
7511
7512 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7513 delta = delta.coalesce(event.delta);
7514 editor.update(cx, |editor, cx| {
7515 let position_map: &PositionMap = &position_map;
7516
7517 let line_height = position_map.line_height;
7518 let max_glyph_advance = position_map.em_advance;
7519 let (delta, axis) = match delta {
7520 gpui::ScrollDelta::Pixels(mut pixels) => {
7521 //Trackpad
7522 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7523 (pixels, axis)
7524 }
7525
7526 gpui::ScrollDelta::Lines(lines) => {
7527 //Not trackpad
7528 let pixels =
7529 point(lines.x * max_glyph_advance, lines.y * line_height);
7530 (pixels, None)
7531 }
7532 };
7533
7534 let current_scroll_position = position_map.snapshot.scroll_position();
7535 let x = (current_scroll_position.x
7536 * ScrollPixelOffset::from(max_glyph_advance)
7537 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7538 / ScrollPixelOffset::from(max_glyph_advance);
7539 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7540 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7541 / ScrollPixelOffset::from(line_height);
7542 let mut scroll_position =
7543 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7544 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7545 if forbid_vertical_scroll {
7546 scroll_position.y = current_scroll_position.y;
7547 }
7548
7549 if scroll_position != current_scroll_position {
7550 editor.scroll(scroll_position, axis, window, cx);
7551 cx.stop_propagation();
7552 } else if y < 0. {
7553 // Due to clamping, we may fail to detect cases of overscroll to the top;
7554 // We want the scroll manager to get an update in such cases and detect the change of direction
7555 // on the next frame.
7556 cx.notify();
7557 }
7558 });
7559 }
7560 }
7561 });
7562 }
7563
7564 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7565 if layout.mode.is_minimap() {
7566 return;
7567 }
7568
7569 self.paint_scroll_wheel_listener(layout, window, cx);
7570
7571 window.on_mouse_event({
7572 let position_map = layout.position_map.clone();
7573 let editor = self.editor.clone();
7574 let line_numbers = layout.line_numbers.clone();
7575
7576 move |event: &MouseDownEvent, phase, window, cx| {
7577 if phase == DispatchPhase::Bubble {
7578 match event.button {
7579 MouseButton::Left => editor.update(cx, |editor, cx| {
7580 let pending_mouse_down = editor
7581 .pending_mouse_down
7582 .get_or_insert_with(Default::default)
7583 .clone();
7584
7585 *pending_mouse_down.borrow_mut() = Some(event.clone());
7586
7587 Self::mouse_left_down(
7588 editor,
7589 event,
7590 &position_map,
7591 line_numbers.as_ref(),
7592 window,
7593 cx,
7594 );
7595 }),
7596 MouseButton::Right => editor.update(cx, |editor, cx| {
7597 Self::mouse_right_down(editor, event, &position_map, window, cx);
7598 }),
7599 MouseButton::Middle => editor.update(cx, |editor, cx| {
7600 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7601 }),
7602 _ => {}
7603 };
7604 }
7605 }
7606 });
7607
7608 window.on_mouse_event({
7609 let editor = self.editor.clone();
7610 let position_map = layout.position_map.clone();
7611
7612 move |event: &MouseUpEvent, phase, window, cx| {
7613 if phase == DispatchPhase::Bubble {
7614 editor.update(cx, |editor, cx| {
7615 Self::mouse_up(editor, event, &position_map, window, cx)
7616 });
7617 }
7618 }
7619 });
7620
7621 window.on_mouse_event({
7622 let editor = self.editor.clone();
7623 let position_map = layout.position_map.clone();
7624 let mut captured_mouse_down = None;
7625
7626 move |event: &MouseUpEvent, phase, window, cx| match phase {
7627 // Clear the pending mouse down during the capture phase,
7628 // so that it happens even if another event handler stops
7629 // propagation.
7630 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7631 let pending_mouse_down = editor
7632 .pending_mouse_down
7633 .get_or_insert_with(Default::default)
7634 .clone();
7635
7636 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7637 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7638 captured_mouse_down = pending_mouse_down.take();
7639 window.refresh();
7640 }
7641 }),
7642 // Fire click handlers during the bubble phase.
7643 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7644 if let Some(mouse_down) = captured_mouse_down.take() {
7645 let event = ClickEvent::Mouse(MouseClickEvent {
7646 down: mouse_down,
7647 up: event.clone(),
7648 });
7649 Self::click(editor, &event, &position_map, window, cx);
7650 }
7651 }),
7652 }
7653 });
7654
7655 window.on_mouse_event({
7656 let position_map = layout.position_map.clone();
7657 let editor = self.editor.clone();
7658
7659 move |event: &MouseMoveEvent, phase, window, cx| {
7660 if phase == DispatchPhase::Bubble {
7661 editor.update(cx, |editor, cx| {
7662 if editor.hover_state.focused(window, cx) {
7663 return;
7664 }
7665 if event.pressed_button == Some(MouseButton::Left)
7666 || event.pressed_button == Some(MouseButton::Middle)
7667 {
7668 Self::mouse_dragged(editor, event, &position_map, window, cx)
7669 }
7670
7671 Self::mouse_moved(editor, event, &position_map, window, cx)
7672 });
7673 }
7674 }
7675 });
7676 }
7677
7678 fn column_pixels(&self, column: usize, window: &Window) -> Pixels {
7679 let style = &self.style;
7680 let font_size = style.text.font_size.to_pixels(window.rem_size());
7681 let layout = window.text_system().shape_line(
7682 SharedString::from(" ".repeat(column)),
7683 font_size,
7684 &[TextRun {
7685 len: column,
7686 font: style.text.font(),
7687 color: Hsla::default(),
7688 ..Default::default()
7689 }],
7690 None,
7691 );
7692
7693 layout.width
7694 }
7695
7696 fn max_line_number_width(&self, snapshot: &EditorSnapshot, window: &mut Window) -> Pixels {
7697 let digit_count = snapshot.widest_line_number().ilog10() + 1;
7698 self.column_pixels(digit_count as usize, window)
7699 }
7700
7701 fn shape_line_number(
7702 &self,
7703 text: SharedString,
7704 color: Hsla,
7705 window: &mut Window,
7706 ) -> ShapedLine {
7707 let run = TextRun {
7708 len: text.len(),
7709 font: self.style.text.font(),
7710 color,
7711 ..Default::default()
7712 };
7713 window.text_system().shape_line(
7714 text,
7715 self.style.text.font_size.to_pixels(window.rem_size()),
7716 &[run],
7717 None,
7718 )
7719 }
7720
7721 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7722 let unstaged = status.has_secondary_hunk();
7723 let unstaged_hollow = matches!(
7724 ProjectSettings::get_global(cx).git.hunk_style,
7725 GitHunkStyleSetting::UnstagedHollow
7726 );
7727
7728 unstaged == unstaged_hollow
7729 }
7730
7731 #[cfg(debug_assertions)]
7732 fn layout_debug_ranges(
7733 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7734 anchor_range: Range<Anchor>,
7735 display_snapshot: &DisplaySnapshot,
7736 cx: &App,
7737 ) {
7738 let theme = cx.theme();
7739 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7740 if debug_ranges.ranges.is_empty() {
7741 return;
7742 }
7743 let buffer_snapshot = &display_snapshot.buffer_snapshot();
7744 for (buffer, buffer_range, excerpt_id) in
7745 buffer_snapshot.range_to_buffer_ranges(anchor_range)
7746 {
7747 let buffer_range =
7748 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
7749 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
7750 let player_color = theme
7751 .players()
7752 .color_for_participant(debug_range.occurrence_index as u32 + 1);
7753 debug_range.ranges.iter().filter_map(move |range| {
7754 if range.start.buffer_id != Some(buffer.remote_id()) {
7755 return None;
7756 }
7757 let clipped_start = range.start.max(&buffer_range.start, buffer);
7758 let clipped_end = range.end.min(&buffer_range.end, buffer);
7759 let range = buffer_snapshot
7760 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
7761 let start = range.start.to_display_point(display_snapshot);
7762 let end = range.end.to_display_point(display_snapshot);
7763 let selection_layout = SelectionLayout {
7764 head: start,
7765 range: start..end,
7766 cursor_shape: CursorShape::Bar,
7767 is_newest: false,
7768 is_local: false,
7769 active_rows: start.row()..end.row(),
7770 user_name: Some(SharedString::new(debug_range.value.clone())),
7771 };
7772 Some((player_color, vec![selection_layout]))
7773 })
7774 }));
7775 }
7776 });
7777 }
7778}
7779
7780fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
7781 file_status.map_or(Color::Default, |status| {
7782 if status.is_conflicted() {
7783 Color::Conflict
7784 } else if status.is_modified() {
7785 Color::Modified
7786 } else if status.is_deleted() {
7787 Color::Disabled
7788 } else if status.is_created() {
7789 Color::Created
7790 } else {
7791 Color::Default
7792 }
7793 })
7794}
7795
7796fn header_jump_data(
7797 snapshot: &EditorSnapshot,
7798 block_row_start: DisplayRow,
7799 height: u32,
7800 for_excerpt: &ExcerptInfo,
7801) -> JumpData {
7802 let range = &for_excerpt.range;
7803 let buffer = &for_excerpt.buffer;
7804 let jump_anchor = range.primary.start;
7805
7806 let excerpt_start = range.context.start;
7807 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
7808 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
7809 0
7810 } else {
7811 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
7812 jump_position.row.saturating_sub(excerpt_start_point.row)
7813 };
7814
7815 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
7816 .saturating_sub(
7817 snapshot
7818 .scroll_anchor
7819 .scroll_position(&snapshot.display_snapshot)
7820 .y as u32,
7821 );
7822
7823 JumpData::MultiBufferPoint {
7824 excerpt_id: for_excerpt.id,
7825 anchor: jump_anchor,
7826 position: jump_position,
7827 line_offset_from_top,
7828 }
7829}
7830
7831pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
7832
7833impl AcceptEditPredictionBinding {
7834 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
7835 if let Some(binding) = self.0.as_ref() {
7836 match &binding.keystrokes() {
7837 [keystroke, ..] => Some(keystroke),
7838 _ => None,
7839 }
7840 } else {
7841 None
7842 }
7843 }
7844}
7845
7846fn prepaint_gutter_button(
7847 button: IconButton,
7848 row: DisplayRow,
7849 line_height: Pixels,
7850 gutter_dimensions: &GutterDimensions,
7851 scroll_position: gpui::Point<ScrollOffset>,
7852 gutter_hitbox: &Hitbox,
7853 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
7854 window: &mut Window,
7855 cx: &mut App,
7856) -> AnyElement {
7857 let mut button = button.into_any_element();
7858
7859 let available_space = size(
7860 AvailableSpace::MinContent,
7861 AvailableSpace::Definite(line_height),
7862 );
7863 let indicator_size = button.layout_as_root(available_space, window, cx);
7864
7865 let blame_width = gutter_dimensions.git_blame_entries_width;
7866 let gutter_width = display_hunks
7867 .binary_search_by(|(hunk, _)| match hunk {
7868 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
7869 DisplayDiffHunk::Unfolded {
7870 display_row_range, ..
7871 } => {
7872 if display_row_range.end <= row {
7873 Ordering::Less
7874 } else if display_row_range.start > row {
7875 Ordering::Greater
7876 } else {
7877 Ordering::Equal
7878 }
7879 }
7880 })
7881 .ok()
7882 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
7883 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
7884
7885 let mut x = left_offset;
7886 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
7887 - indicator_size.width
7888 - left_offset;
7889 x += available_width / 2.;
7890
7891 let mut y =
7892 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
7893 y += (line_height - indicator_size.height) / 2.;
7894
7895 button.prepaint_as_root(
7896 gutter_hitbox.origin + point(x, y),
7897 available_space,
7898 window,
7899 cx,
7900 );
7901 button
7902}
7903
7904fn render_inline_blame_entry(
7905 blame_entry: BlameEntry,
7906 style: &EditorStyle,
7907 cx: &mut App,
7908) -> Option<AnyElement> {
7909 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7910 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
7911}
7912
7913fn render_blame_entry_popover(
7914 blame_entry: BlameEntry,
7915 scroll_handle: ScrollHandle,
7916 commit_message: Option<ParsedCommitMessage>,
7917 markdown: Entity<Markdown>,
7918 workspace: WeakEntity<Workspace>,
7919 blame: &Entity<GitBlame>,
7920 buffer: BufferId,
7921 window: &mut Window,
7922 cx: &mut App,
7923) -> Option<AnyElement> {
7924 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7925 let blame = blame.read(cx);
7926 let repository = blame.repository(cx, buffer)?;
7927 renderer.render_blame_entry_popover(
7928 blame_entry,
7929 scroll_handle,
7930 commit_message,
7931 markdown,
7932 repository,
7933 workspace,
7934 window,
7935 cx,
7936 )
7937}
7938
7939fn render_blame_entry(
7940 ix: usize,
7941 blame: &Entity<GitBlame>,
7942 blame_entry: BlameEntry,
7943 style: &EditorStyle,
7944 last_used_color: &mut Option<(Hsla, Oid)>,
7945 editor: Entity<Editor>,
7946 workspace: Entity<Workspace>,
7947 buffer: BufferId,
7948 renderer: &dyn BlameRenderer,
7949 window: &mut Window,
7950 cx: &mut App,
7951) -> Option<AnyElement> {
7952 let index: u32 = blame_entry.sha.into();
7953 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
7954
7955 // If the last color we used is the same as the one we get for this line, but
7956 // the commit SHAs are different, then we try again to get a different color.
7957 if let Some((color, sha)) = *last_used_color
7958 && sha != blame_entry.sha
7959 && color == sha_color
7960 {
7961 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
7962 }
7963 last_used_color.replace((sha_color, blame_entry.sha));
7964
7965 let blame = blame.read(cx);
7966 let details = blame.details_for_entry(buffer, &blame_entry);
7967 let repository = blame.repository(cx, buffer)?;
7968 renderer.render_blame_entry(
7969 &style.text,
7970 blame_entry,
7971 details,
7972 repository,
7973 workspace.downgrade(),
7974 editor,
7975 ix,
7976 sha_color,
7977 window,
7978 cx,
7979 )
7980}
7981
7982#[derive(Debug)]
7983pub(crate) struct LineWithInvisibles {
7984 fragments: SmallVec<[LineFragment; 1]>,
7985 invisibles: Vec<Invisible>,
7986 len: usize,
7987 pub(crate) width: Pixels,
7988 font_size: Pixels,
7989}
7990
7991enum LineFragment {
7992 Text(ShapedLine),
7993 Element {
7994 id: ChunkRendererId,
7995 element: Option<AnyElement>,
7996 size: Size<Pixels>,
7997 len: usize,
7998 },
7999}
8000
8001impl fmt::Debug for LineFragment {
8002 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8003 match self {
8004 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8005 LineFragment::Element { size, len, .. } => f
8006 .debug_struct("Element")
8007 .field("size", size)
8008 .field("len", len)
8009 .finish(),
8010 }
8011 }
8012}
8013
8014impl LineWithInvisibles {
8015 fn from_chunks<'a>(
8016 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8017 editor_style: &EditorStyle,
8018 max_line_len: usize,
8019 max_line_count: usize,
8020 editor_mode: &EditorMode,
8021 text_width: Pixels,
8022 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8023 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8024 window: &mut Window,
8025 cx: &mut App,
8026 ) -> Vec<Self> {
8027 let text_style = &editor_style.text;
8028 let mut layouts = Vec::with_capacity(max_line_count);
8029 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8030 let mut line = String::new();
8031 let mut invisibles = Vec::new();
8032 let mut width = Pixels::ZERO;
8033 let mut len = 0;
8034 let mut styles = Vec::new();
8035 let mut non_whitespace_added = false;
8036 let mut row = 0;
8037 let mut line_exceeded_max_len = false;
8038 let font_size = text_style.font_size.to_pixels(window.rem_size());
8039 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8040
8041 let ellipsis = SharedString::from("β―");
8042
8043 for highlighted_chunk in chunks.chain([HighlightedChunk {
8044 text: "\n",
8045 style: None,
8046 is_tab: false,
8047 is_inlay: false,
8048 replacement: None,
8049 }]) {
8050 if let Some(replacement) = highlighted_chunk.replacement {
8051 if !line.is_empty() {
8052 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8053 let text_runs: &[TextRun] = if segments.is_empty() {
8054 &styles
8055 } else {
8056 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8057 };
8058 let shaped_line = window.text_system().shape_line(
8059 line.clone().into(),
8060 font_size,
8061 text_runs,
8062 None,
8063 );
8064 width += shaped_line.width;
8065 len += shaped_line.len;
8066 fragments.push(LineFragment::Text(shaped_line));
8067 line.clear();
8068 styles.clear();
8069 }
8070
8071 match replacement {
8072 ChunkReplacement::Renderer(renderer) => {
8073 let available_width = if renderer.constrain_width {
8074 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8075 ellipsis.clone()
8076 } else {
8077 SharedString::from(Arc::from(highlighted_chunk.text))
8078 };
8079 let shaped_line = window.text_system().shape_line(
8080 chunk,
8081 font_size,
8082 &[text_style.to_run(highlighted_chunk.text.len())],
8083 None,
8084 );
8085 AvailableSpace::Definite(shaped_line.width)
8086 } else {
8087 AvailableSpace::MinContent
8088 };
8089
8090 let mut element = (renderer.render)(&mut ChunkRendererContext {
8091 context: cx,
8092 window,
8093 max_width: text_width,
8094 });
8095 let line_height = text_style.line_height_in_pixels(window.rem_size());
8096 let size = element.layout_as_root(
8097 size(available_width, AvailableSpace::Definite(line_height)),
8098 window,
8099 cx,
8100 );
8101
8102 width += size.width;
8103 len += highlighted_chunk.text.len();
8104 fragments.push(LineFragment::Element {
8105 id: renderer.id,
8106 element: Some(element),
8107 size,
8108 len: highlighted_chunk.text.len(),
8109 });
8110 }
8111 ChunkReplacement::Str(x) => {
8112 let text_style = if let Some(style) = highlighted_chunk.style {
8113 Cow::Owned(text_style.clone().highlight(style))
8114 } else {
8115 Cow::Borrowed(text_style)
8116 };
8117
8118 let run = TextRun {
8119 len: x.len(),
8120 font: text_style.font(),
8121 color: text_style.color,
8122 background_color: text_style.background_color,
8123 underline: text_style.underline,
8124 strikethrough: text_style.strikethrough,
8125 };
8126 let line_layout = window
8127 .text_system()
8128 .shape_line(x, font_size, &[run], None)
8129 .with_len(highlighted_chunk.text.len());
8130
8131 width += line_layout.width;
8132 len += highlighted_chunk.text.len();
8133 fragments.push(LineFragment::Text(line_layout))
8134 }
8135 }
8136 } else {
8137 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8138 if ix > 0 {
8139 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8140 let text_runs = if segments.is_empty() {
8141 &styles
8142 } else {
8143 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8144 };
8145 let shaped_line = window.text_system().shape_line(
8146 line.clone().into(),
8147 font_size,
8148 text_runs,
8149 None,
8150 );
8151 width += shaped_line.width;
8152 len += shaped_line.len;
8153 fragments.push(LineFragment::Text(shaped_line));
8154 layouts.push(Self {
8155 width: mem::take(&mut width),
8156 len: mem::take(&mut len),
8157 fragments: mem::take(&mut fragments),
8158 invisibles: std::mem::take(&mut invisibles),
8159 font_size,
8160 });
8161
8162 line.clear();
8163 styles.clear();
8164 row += 1;
8165 line_exceeded_max_len = false;
8166 non_whitespace_added = false;
8167 if row == max_line_count {
8168 return layouts;
8169 }
8170 }
8171
8172 if !line_chunk.is_empty() && !line_exceeded_max_len {
8173 let text_style = if let Some(style) = highlighted_chunk.style {
8174 Cow::Owned(text_style.clone().highlight(style))
8175 } else {
8176 Cow::Borrowed(text_style)
8177 };
8178
8179 if line.len() + line_chunk.len() > max_line_len {
8180 let mut chunk_len = max_line_len - line.len();
8181 while !line_chunk.is_char_boundary(chunk_len) {
8182 chunk_len -= 1;
8183 }
8184 line_chunk = &line_chunk[..chunk_len];
8185 line_exceeded_max_len = true;
8186 }
8187
8188 styles.push(TextRun {
8189 len: line_chunk.len(),
8190 font: text_style.font(),
8191 color: text_style.color,
8192 background_color: text_style.background_color,
8193 underline: text_style.underline,
8194 strikethrough: text_style.strikethrough,
8195 });
8196
8197 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8198 // Line wrap pads its contents with fake whitespaces,
8199 // avoid printing them
8200 let is_soft_wrapped = is_row_soft_wrapped(row);
8201 if highlighted_chunk.is_tab {
8202 if non_whitespace_added || !is_soft_wrapped {
8203 invisibles.push(Invisible::Tab {
8204 line_start_offset: line.len(),
8205 line_end_offset: line.len() + line_chunk.len(),
8206 });
8207 }
8208 } else {
8209 invisibles.extend(line_chunk.char_indices().filter_map(
8210 |(index, c)| {
8211 let is_whitespace = c.is_whitespace();
8212 non_whitespace_added |= !is_whitespace;
8213 if is_whitespace
8214 && (non_whitespace_added || !is_soft_wrapped)
8215 {
8216 Some(Invisible::Whitespace {
8217 line_offset: line.len() + index,
8218 })
8219 } else {
8220 None
8221 }
8222 },
8223 ))
8224 }
8225 }
8226
8227 line.push_str(line_chunk);
8228 }
8229 }
8230 }
8231 }
8232
8233 layouts
8234 }
8235
8236 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8237 /// Returns new text runs with adjusted contrast as per background ranges.
8238 fn split_runs_by_bg_segments(
8239 text_runs: &[TextRun],
8240 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8241 min_contrast: f32,
8242 start_col_offset: usize,
8243 ) -> Vec<TextRun> {
8244 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8245 let mut line_col = start_col_offset;
8246 let mut segment_ix = 0usize;
8247
8248 for text_run in text_runs.iter() {
8249 let run_start_col = line_col;
8250 let run_end_col = run_start_col + text_run.len;
8251 while segment_ix < bg_segments.len()
8252 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8253 {
8254 segment_ix += 1;
8255 }
8256 let mut cursor_col = run_start_col;
8257 let mut local_segment_ix = segment_ix;
8258 while local_segment_ix < bg_segments.len() {
8259 let (range, segment_color) = &bg_segments[local_segment_ix];
8260 let segment_start_col = range.start.column() as usize;
8261 let segment_end_col = range.end.column() as usize;
8262 if segment_start_col >= run_end_col {
8263 break;
8264 }
8265 if segment_start_col > cursor_col {
8266 let span_len = segment_start_col - cursor_col;
8267 output_runs.push(TextRun {
8268 len: span_len,
8269 font: text_run.font.clone(),
8270 color: text_run.color,
8271 background_color: text_run.background_color,
8272 underline: text_run.underline,
8273 strikethrough: text_run.strikethrough,
8274 });
8275 cursor_col = segment_start_col;
8276 }
8277 let segment_slice_end_col = segment_end_col.min(run_end_col);
8278 if segment_slice_end_col > cursor_col {
8279 let new_text_color =
8280 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8281 output_runs.push(TextRun {
8282 len: segment_slice_end_col - cursor_col,
8283 font: text_run.font.clone(),
8284 color: new_text_color,
8285 background_color: text_run.background_color,
8286 underline: text_run.underline,
8287 strikethrough: text_run.strikethrough,
8288 });
8289 cursor_col = segment_slice_end_col;
8290 }
8291 if segment_end_col >= run_end_col {
8292 break;
8293 }
8294 local_segment_ix += 1;
8295 }
8296 if cursor_col < run_end_col {
8297 output_runs.push(TextRun {
8298 len: run_end_col - cursor_col,
8299 font: text_run.font.clone(),
8300 color: text_run.color,
8301 background_color: text_run.background_color,
8302 underline: text_run.underline,
8303 strikethrough: text_run.strikethrough,
8304 });
8305 }
8306 line_col = run_end_col;
8307 segment_ix = local_segment_ix;
8308 }
8309 output_runs
8310 }
8311
8312 fn prepaint(
8313 &mut self,
8314 line_height: Pixels,
8315 scroll_position: gpui::Point<ScrollOffset>,
8316 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8317 row: DisplayRow,
8318 content_origin: gpui::Point<Pixels>,
8319 line_elements: &mut SmallVec<[AnyElement; 1]>,
8320 window: &mut Window,
8321 cx: &mut App,
8322 ) {
8323 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8324 self.prepaint_with_custom_offset(
8325 line_height,
8326 scroll_pixel_position,
8327 content_origin,
8328 line_y,
8329 line_elements,
8330 window,
8331 cx,
8332 );
8333 }
8334
8335 fn prepaint_with_custom_offset(
8336 &mut self,
8337 line_height: Pixels,
8338 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8339 content_origin: gpui::Point<Pixels>,
8340 line_y: Pixels,
8341 line_elements: &mut SmallVec<[AnyElement; 1]>,
8342 window: &mut Window,
8343 cx: &mut App,
8344 ) {
8345 let mut fragment_origin =
8346 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8347 for fragment in &mut self.fragments {
8348 match fragment {
8349 LineFragment::Text(line) => {
8350 fragment_origin.x += line.width;
8351 }
8352 LineFragment::Element { element, size, .. } => {
8353 let mut element = element
8354 .take()
8355 .expect("you can't prepaint LineWithInvisibles twice");
8356
8357 // Center the element vertically within the line.
8358 let mut element_origin = fragment_origin;
8359 element_origin.y += (line_height - size.height) / 2.;
8360 element.prepaint_at(element_origin, window, cx);
8361 line_elements.push(element);
8362
8363 fragment_origin.x += size.width;
8364 }
8365 }
8366 }
8367 }
8368
8369 fn draw(
8370 &self,
8371 layout: &EditorLayout,
8372 row: DisplayRow,
8373 content_origin: gpui::Point<Pixels>,
8374 whitespace_setting: ShowWhitespaceSetting,
8375 selection_ranges: &[Range<DisplayPoint>],
8376 window: &mut Window,
8377 cx: &mut App,
8378 ) {
8379 self.draw_with_custom_offset(
8380 layout,
8381 row,
8382 content_origin,
8383 layout.position_map.line_height
8384 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8385 whitespace_setting,
8386 selection_ranges,
8387 window,
8388 cx,
8389 );
8390 }
8391
8392 fn draw_with_custom_offset(
8393 &self,
8394 layout: &EditorLayout,
8395 row: DisplayRow,
8396 content_origin: gpui::Point<Pixels>,
8397 line_y: Pixels,
8398 whitespace_setting: ShowWhitespaceSetting,
8399 selection_ranges: &[Range<DisplayPoint>],
8400 window: &mut Window,
8401 cx: &mut App,
8402 ) {
8403 let line_height = layout.position_map.line_height;
8404 let mut fragment_origin = content_origin
8405 + gpui::point(
8406 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8407 line_y,
8408 );
8409
8410 for fragment in &self.fragments {
8411 match fragment {
8412 LineFragment::Text(line) => {
8413 line.paint(fragment_origin, line_height, window, cx)
8414 .log_err();
8415 fragment_origin.x += line.width;
8416 }
8417 LineFragment::Element { size, .. } => {
8418 fragment_origin.x += size.width;
8419 }
8420 }
8421 }
8422
8423 self.draw_invisibles(
8424 selection_ranges,
8425 layout,
8426 content_origin,
8427 line_y,
8428 row,
8429 line_height,
8430 whitespace_setting,
8431 window,
8432 cx,
8433 );
8434 }
8435
8436 fn draw_background(
8437 &self,
8438 layout: &EditorLayout,
8439 row: DisplayRow,
8440 content_origin: gpui::Point<Pixels>,
8441 window: &mut Window,
8442 cx: &mut App,
8443 ) {
8444 let line_height = layout.position_map.line_height;
8445 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
8446
8447 let mut fragment_origin = content_origin
8448 + gpui::point(
8449 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8450 line_y,
8451 );
8452
8453 for fragment in &self.fragments {
8454 match fragment {
8455 LineFragment::Text(line) => {
8456 line.paint_background(fragment_origin, line_height, window, cx)
8457 .log_err();
8458 fragment_origin.x += line.width;
8459 }
8460 LineFragment::Element { size, .. } => {
8461 fragment_origin.x += size.width;
8462 }
8463 }
8464 }
8465 }
8466
8467 fn draw_invisibles(
8468 &self,
8469 selection_ranges: &[Range<DisplayPoint>],
8470 layout: &EditorLayout,
8471 content_origin: gpui::Point<Pixels>,
8472 line_y: Pixels,
8473 row: DisplayRow,
8474 line_height: Pixels,
8475 whitespace_setting: ShowWhitespaceSetting,
8476 window: &mut Window,
8477 cx: &mut App,
8478 ) {
8479 let extract_whitespace_info = |invisible: &Invisible| {
8480 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
8481 Invisible::Tab {
8482 line_start_offset,
8483 line_end_offset,
8484 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
8485 Invisible::Whitespace { line_offset } => {
8486 (*line_offset, line_offset + 1, &layout.space_invisible)
8487 }
8488 };
8489
8490 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
8491 let invisible_offset: ScrollPixelOffset =
8492 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
8493 .into();
8494 let origin = content_origin
8495 + gpui::point(
8496 Pixels::from(
8497 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
8498 ),
8499 line_y,
8500 );
8501
8502 (
8503 [token_offset, token_end_offset],
8504 Box::new(move |window: &mut Window, cx: &mut App| {
8505 invisible_symbol
8506 .paint(origin, line_height, window, cx)
8507 .log_err();
8508 }),
8509 )
8510 };
8511
8512 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
8513 match whitespace_setting {
8514 ShowWhitespaceSetting::None => (),
8515 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
8516 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
8517 let invisible_point = DisplayPoint::new(row, start as u32);
8518 if !selection_ranges
8519 .iter()
8520 .any(|region| region.start <= invisible_point && invisible_point < region.end)
8521 {
8522 return;
8523 }
8524
8525 paint(window, cx);
8526 }),
8527
8528 ShowWhitespaceSetting::Trailing => {
8529 let mut previous_start = self.len;
8530 for ([start, end], paint) in invisible_iter.rev() {
8531 if previous_start != end {
8532 break;
8533 }
8534 previous_start = start;
8535 paint(window, cx);
8536 }
8537 }
8538
8539 // For a whitespace to be on a boundary, any of the following conditions need to be met:
8540 // - It is a tab
8541 // - It is adjacent to an edge (start or end)
8542 // - It is adjacent to a whitespace (left or right)
8543 ShowWhitespaceSetting::Boundary => {
8544 // 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
8545 // the above cases.
8546 // Note: We zip in the original `invisibles` to check for tab equality
8547 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
8548 for (([start, end], paint), invisible) in
8549 invisible_iter.zip_eq(self.invisibles.iter())
8550 {
8551 let should_render = match (&last_seen, invisible) {
8552 (_, Invisible::Tab { .. }) => true,
8553 (Some((_, last_end, _)), _) => *last_end == start,
8554 _ => false,
8555 };
8556
8557 if should_render || start == 0 || end == self.len {
8558 paint(window, cx);
8559
8560 // Since we are scanning from the left, we will skip over the first available whitespace that is part
8561 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
8562 if let Some((should_render_last, last_end, paint_last)) = last_seen {
8563 // Note that we need to make sure that the last one is actually adjacent
8564 if !should_render_last && last_end == start {
8565 paint_last(window, cx);
8566 }
8567 }
8568 }
8569
8570 // Manually render anything within a selection
8571 let invisible_point = DisplayPoint::new(row, start as u32);
8572 if selection_ranges.iter().any(|region| {
8573 region.start <= invisible_point && invisible_point < region.end
8574 }) {
8575 paint(window, cx);
8576 }
8577
8578 last_seen = Some((should_render, end, paint));
8579 }
8580 }
8581 }
8582 }
8583
8584 pub fn x_for_index(&self, index: usize) -> Pixels {
8585 let mut fragment_start_x = Pixels::ZERO;
8586 let mut fragment_start_index = 0;
8587
8588 for fragment in &self.fragments {
8589 match fragment {
8590 LineFragment::Text(shaped_line) => {
8591 let fragment_end_index = fragment_start_index + shaped_line.len;
8592 if index < fragment_end_index {
8593 return fragment_start_x
8594 + shaped_line.x_for_index(index - fragment_start_index);
8595 }
8596 fragment_start_x += shaped_line.width;
8597 fragment_start_index = fragment_end_index;
8598 }
8599 LineFragment::Element { len, size, .. } => {
8600 let fragment_end_index = fragment_start_index + len;
8601 if index < fragment_end_index {
8602 return fragment_start_x;
8603 }
8604 fragment_start_x += size.width;
8605 fragment_start_index = fragment_end_index;
8606 }
8607 }
8608 }
8609
8610 fragment_start_x
8611 }
8612
8613 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
8614 let mut fragment_start_x = Pixels::ZERO;
8615 let mut fragment_start_index = 0;
8616
8617 for fragment in &self.fragments {
8618 match fragment {
8619 LineFragment::Text(shaped_line) => {
8620 let fragment_end_x = fragment_start_x + shaped_line.width;
8621 if x < fragment_end_x {
8622 return Some(
8623 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x),
8624 );
8625 }
8626 fragment_start_x = fragment_end_x;
8627 fragment_start_index += shaped_line.len;
8628 }
8629 LineFragment::Element { len, size, .. } => {
8630 let fragment_end_x = fragment_start_x + size.width;
8631 if x < fragment_end_x {
8632 return Some(fragment_start_index);
8633 }
8634 fragment_start_index += len;
8635 fragment_start_x = fragment_end_x;
8636 }
8637 }
8638 }
8639
8640 None
8641 }
8642
8643 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
8644 let mut fragment_start_index = 0;
8645
8646 for fragment in &self.fragments {
8647 match fragment {
8648 LineFragment::Text(shaped_line) => {
8649 let fragment_end_index = fragment_start_index + shaped_line.len;
8650 if index < fragment_end_index {
8651 return shaped_line.font_id_for_index(index - fragment_start_index);
8652 }
8653 fragment_start_index = fragment_end_index;
8654 }
8655 LineFragment::Element { len, .. } => {
8656 let fragment_end_index = fragment_start_index + len;
8657 if index < fragment_end_index {
8658 return None;
8659 }
8660 fragment_start_index = fragment_end_index;
8661 }
8662 }
8663 }
8664
8665 None
8666 }
8667}
8668
8669#[derive(Debug, Clone, Copy, PartialEq, Eq)]
8670enum Invisible {
8671 /// A tab character
8672 ///
8673 /// A tab character is internally represented by spaces (configured by the user's tab width)
8674 /// aligned to the nearest column, so it's necessary to store the start and end offset for
8675 /// adjacency checks.
8676 Tab {
8677 line_start_offset: usize,
8678 line_end_offset: usize,
8679 },
8680 Whitespace {
8681 line_offset: usize,
8682 },
8683}
8684
8685impl EditorElement {
8686 /// Returns the rem size to use when rendering the [`EditorElement`].
8687 ///
8688 /// This allows UI elements to scale based on the `buffer_font_size`.
8689 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
8690 match self.editor.read(cx).mode {
8691 EditorMode::Full {
8692 scale_ui_elements_with_buffer_font_size: true,
8693 ..
8694 }
8695 | EditorMode::Minimap { .. } => {
8696 let buffer_font_size = self.style.text.font_size;
8697 match buffer_font_size {
8698 AbsoluteLength::Pixels(pixels) => {
8699 let rem_size_scale = {
8700 // Our default UI font size is 14px on a 16px base scale.
8701 // This means the default UI font size is 0.875rems.
8702 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
8703
8704 // We then determine the delta between a single rem and the default font
8705 // size scale.
8706 let default_font_size_delta = 1. - default_font_size_scale;
8707
8708 // Finally, we add this delta to 1rem to get the scale factor that
8709 // should be used to scale up the UI.
8710 1. + default_font_size_delta
8711 };
8712
8713 Some(pixels * rem_size_scale)
8714 }
8715 AbsoluteLength::Rems(rems) => {
8716 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
8717 }
8718 }
8719 }
8720 // We currently use single-line and auto-height editors in UI contexts,
8721 // so we don't want to scale everything with the buffer font size, as it
8722 // ends up looking off.
8723 _ => None,
8724 }
8725 }
8726
8727 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
8728 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
8729 parent.upgrade()
8730 } else {
8731 Some(self.editor.clone())
8732 }
8733 }
8734}
8735
8736impl Element for EditorElement {
8737 type RequestLayoutState = ();
8738 type PrepaintState = EditorLayout;
8739
8740 fn id(&self) -> Option<ElementId> {
8741 None
8742 }
8743
8744 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
8745 None
8746 }
8747
8748 fn request_layout(
8749 &mut self,
8750 _: Option<&GlobalElementId>,
8751 _inspector_id: Option<&gpui::InspectorElementId>,
8752 window: &mut Window,
8753 cx: &mut App,
8754 ) -> (gpui::LayoutId, ()) {
8755 let rem_size = self.rem_size(cx);
8756 window.with_rem_size(rem_size, |window| {
8757 self.editor.update(cx, |editor, cx| {
8758 editor.set_style(self.style.clone(), window, cx);
8759
8760 let layout_id = match editor.mode {
8761 EditorMode::SingleLine => {
8762 let rem_size = window.rem_size();
8763 let height = self.style.text.line_height_in_pixels(rem_size);
8764 let mut style = Style::default();
8765 style.size.height = height.into();
8766 style.size.width = relative(1.).into();
8767 window.request_layout(style, None, cx)
8768 }
8769 EditorMode::AutoHeight {
8770 min_lines,
8771 max_lines,
8772 } => {
8773 let editor_handle = cx.entity();
8774 let max_line_number_width =
8775 self.max_line_number_width(&editor.snapshot(window, cx), window);
8776 window.request_measured_layout(
8777 Style::default(),
8778 move |known_dimensions, available_space, window, cx| {
8779 editor_handle
8780 .update(cx, |editor, cx| {
8781 compute_auto_height_layout(
8782 editor,
8783 min_lines,
8784 max_lines,
8785 max_line_number_width,
8786 known_dimensions,
8787 available_space.width,
8788 window,
8789 cx,
8790 )
8791 })
8792 .unwrap_or_default()
8793 },
8794 )
8795 }
8796 EditorMode::Minimap { .. } => {
8797 let mut style = Style::default();
8798 style.size.width = relative(1.).into();
8799 style.size.height = relative(1.).into();
8800 window.request_layout(style, None, cx)
8801 }
8802 EditorMode::Full {
8803 sizing_behavior, ..
8804 } => {
8805 let mut style = Style::default();
8806 style.size.width = relative(1.).into();
8807 if sizing_behavior == SizingBehavior::SizeByContent {
8808 let snapshot = editor.snapshot(window, cx);
8809 let line_height =
8810 self.style.text.line_height_in_pixels(window.rem_size());
8811 let scroll_height =
8812 (snapshot.max_point().row().next_row().0 as f32) * line_height;
8813 style.size.height = scroll_height.into();
8814 } else {
8815 style.size.height = relative(1.).into();
8816 }
8817 window.request_layout(style, None, cx)
8818 }
8819 };
8820
8821 (layout_id, ())
8822 })
8823 })
8824 }
8825
8826 fn prepaint(
8827 &mut self,
8828 _: Option<&GlobalElementId>,
8829 _inspector_id: Option<&gpui::InspectorElementId>,
8830 bounds: Bounds<Pixels>,
8831 _: &mut Self::RequestLayoutState,
8832 window: &mut Window,
8833 cx: &mut App,
8834 ) -> Self::PrepaintState {
8835 let text_style = TextStyleRefinement {
8836 font_size: Some(self.style.text.font_size),
8837 line_height: Some(self.style.text.line_height),
8838 ..Default::default()
8839 };
8840
8841 let is_minimap = self.editor.read(cx).mode.is_minimap();
8842 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
8843
8844 if !is_minimap {
8845 let focus_handle = self.editor.focus_handle(cx);
8846 window.set_view_id(self.editor.entity_id());
8847 window.set_focus_handle(&focus_handle, cx);
8848 }
8849
8850 let rem_size = self.rem_size(cx);
8851 window.with_rem_size(rem_size, |window| {
8852 window.with_text_style(Some(text_style), |window| {
8853 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8854 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
8855 (editor.snapshot(window, cx), editor.read_only(cx))
8856 });
8857 let style = &self.style;
8858
8859 let rem_size = window.rem_size();
8860 let font_id = window.text_system().resolve_font(&style.text.font());
8861 let font_size = style.text.font_size.to_pixels(rem_size);
8862 let line_height = style.text.line_height_in_pixels(rem_size);
8863 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8864 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
8865 let glyph_grid_cell = size(em_advance, line_height);
8866
8867 let gutter_dimensions = snapshot
8868 .gutter_dimensions(
8869 font_id,
8870 font_size,
8871 self.max_line_number_width(&snapshot, window),
8872 cx,
8873 )
8874 .or_else(|| {
8875 self.editor.read(cx).offset_content.then(|| {
8876 GutterDimensions::default_with_margin(font_id, font_size, cx)
8877 })
8878 })
8879 .unwrap_or_default();
8880 let text_width = bounds.size.width - gutter_dimensions.width;
8881
8882 let settings = EditorSettings::get_global(cx);
8883 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
8884 let vertical_scrollbar_width = (scrollbars_shown
8885 && settings.scrollbar.axes.vertical
8886 && self.editor.read(cx).show_scrollbars.vertical)
8887 .then_some(style.scrollbar_width)
8888 .unwrap_or_default();
8889 let minimap_width = self
8890 .get_minimap_width(
8891 &settings.minimap,
8892 scrollbars_shown,
8893 text_width,
8894 em_width,
8895 font_size,
8896 rem_size,
8897 cx,
8898 )
8899 .unwrap_or_default();
8900
8901 let right_margin = minimap_width + vertical_scrollbar_width;
8902
8903 let editor_width =
8904 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
8905 let editor_margins = EditorMargins {
8906 gutter: gutter_dimensions,
8907 right: right_margin,
8908 };
8909
8910 snapshot = self.editor.update(cx, |editor, cx| {
8911 editor.last_bounds = Some(bounds);
8912 editor.gutter_dimensions = gutter_dimensions;
8913 editor.set_visible_line_count(
8914 (bounds.size.height / line_height) as f64,
8915 window,
8916 cx,
8917 );
8918 editor.set_visible_column_count(f64::from(editor_width / em_advance));
8919
8920 if matches!(
8921 editor.mode,
8922 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
8923 ) {
8924 snapshot
8925 } else {
8926 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
8927 let wrap_width = match editor.soft_wrap_mode(cx) {
8928 SoftWrap::GitDiff => None,
8929 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
8930 SoftWrap::EditorWidth => Some(editor_width),
8931 SoftWrap::Column(column) => Some(wrap_width_for(column)),
8932 SoftWrap::Bounded(column) => {
8933 Some(editor_width.min(wrap_width_for(column)))
8934 }
8935 };
8936
8937 if editor.set_wrap_width(wrap_width, cx) {
8938 editor.snapshot(window, cx)
8939 } else {
8940 snapshot
8941 }
8942 }
8943 });
8944
8945 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
8946 let gutter_hitbox = window.insert_hitbox(
8947 gutter_bounds(bounds, gutter_dimensions),
8948 HitboxBehavior::Normal,
8949 );
8950 let text_hitbox = window.insert_hitbox(
8951 Bounds {
8952 origin: gutter_hitbox.top_right(),
8953 size: size(text_width, bounds.size.height),
8954 },
8955 HitboxBehavior::Normal,
8956 );
8957
8958 // Offset the content_bounds from the text_bounds by the gutter margin (which
8959 // is roughly half a character wide) to make hit testing work more like how we want.
8960 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
8961 let content_origin = text_hitbox.origin + content_offset;
8962
8963 let height_in_lines = f64::from(bounds.size.height / line_height);
8964 let max_row = snapshot.max_point().row().as_f64();
8965
8966 // The max scroll position for the top of the window
8967 let max_scroll_top = if matches!(
8968 snapshot.mode,
8969 EditorMode::SingleLine
8970 | EditorMode::AutoHeight { .. }
8971 | EditorMode::Full {
8972 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
8973 | SizingBehavior::SizeByContent,
8974 ..
8975 }
8976 ) {
8977 (max_row - height_in_lines + 1.).max(0.)
8978 } else {
8979 let settings = EditorSettings::get_global(cx);
8980 match settings.scroll_beyond_last_line {
8981 ScrollBeyondLastLine::OnePage => max_row,
8982 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
8983 ScrollBeyondLastLine::VerticalScrollMargin => {
8984 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
8985 .max(0.)
8986 }
8987 }
8988 };
8989
8990 let (
8991 autoscroll_request,
8992 autoscroll_containing_element,
8993 needs_horizontal_autoscroll,
8994 ) = self.editor.update(cx, |editor, cx| {
8995 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
8996
8997 let autoscroll_containing_element =
8998 autoscroll_request.is_some() || editor.has_pending_selection();
8999
9000 let (needs_horizontal_autoscroll, was_scrolled) = editor
9001 .autoscroll_vertically(
9002 bounds,
9003 line_height,
9004 max_scroll_top,
9005 autoscroll_request,
9006 window,
9007 cx,
9008 );
9009 if was_scrolled.0 {
9010 snapshot = editor.snapshot(window, cx);
9011 }
9012 (
9013 autoscroll_request,
9014 autoscroll_containing_element,
9015 needs_horizontal_autoscroll,
9016 )
9017 });
9018
9019 let mut scroll_position = snapshot.scroll_position();
9020 // The scroll position is a fractional point, the whole number of which represents
9021 // the top of the window in terms of display rows.
9022 let start_row = DisplayRow(scroll_position.y as u32);
9023 let max_row = snapshot.max_point().row();
9024 let end_row = cmp::min(
9025 (scroll_position.y + height_in_lines).ceil() as u32,
9026 max_row.next_row().0,
9027 );
9028 let end_row = DisplayRow(end_row);
9029
9030 let row_infos = snapshot
9031 .row_infos(start_row)
9032 .take((start_row..end_row).len())
9033 .collect::<Vec<RowInfo>>();
9034 let is_row_soft_wrapped = |row: usize| {
9035 row_infos
9036 .get(row)
9037 .is_none_or(|info| info.buffer_row.is_none())
9038 };
9039
9040 let start_anchor = if start_row == Default::default() {
9041 Anchor::min()
9042 } else {
9043 snapshot.buffer_snapshot().anchor_before(
9044 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9045 )
9046 };
9047 let end_anchor = if end_row > max_row {
9048 Anchor::max()
9049 } else {
9050 snapshot.buffer_snapshot().anchor_before(
9051 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9052 )
9053 };
9054
9055 let mut highlighted_rows = self
9056 .editor
9057 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9058
9059 let is_light = cx.theme().appearance().is_light();
9060
9061 for (ix, row_info) in row_infos.iter().enumerate() {
9062 let Some(diff_status) = row_info.diff_status else {
9063 continue;
9064 };
9065
9066 let background_color = match diff_status.kind {
9067 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
9068 DiffHunkStatusKind::Deleted => {
9069 cx.theme().colors().version_control_deleted
9070 }
9071 DiffHunkStatusKind::Modified => {
9072 debug_panic!("modified diff status for row info");
9073 continue;
9074 }
9075 };
9076
9077 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9078
9079 let hollow_highlight = LineHighlight {
9080 background: (background_color.opacity(if is_light {
9081 0.08
9082 } else {
9083 0.06
9084 }))
9085 .into(),
9086 border: Some(if is_light {
9087 background_color.opacity(0.48)
9088 } else {
9089 background_color.opacity(0.36)
9090 }),
9091 include_gutter: true,
9092 type_id: None,
9093 };
9094
9095 let filled_highlight = LineHighlight {
9096 background: solid_background(background_color.opacity(hunk_opacity)),
9097 border: None,
9098 include_gutter: true,
9099 type_id: None,
9100 };
9101
9102 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9103 hollow_highlight
9104 } else {
9105 filled_highlight
9106 };
9107
9108 highlighted_rows
9109 .entry(start_row + DisplayRow(ix as u32))
9110 .or_insert(background);
9111 }
9112
9113 let highlighted_ranges = self
9114 .editor_with_selections(cx)
9115 .map(|editor| {
9116 editor.read(cx).background_highlights_in_range(
9117 start_anchor..end_anchor,
9118 &snapshot.display_snapshot,
9119 cx.theme(),
9120 )
9121 })
9122 .unwrap_or_default();
9123 let highlighted_gutter_ranges =
9124 self.editor.read(cx).gutter_highlights_in_range(
9125 start_anchor..end_anchor,
9126 &snapshot.display_snapshot,
9127 cx,
9128 );
9129
9130 let document_colors = self
9131 .editor
9132 .read(cx)
9133 .colors
9134 .as_ref()
9135 .map(|colors| colors.editor_display_highlights(&snapshot));
9136 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9137 start_anchor..end_anchor,
9138 &snapshot.display_snapshot,
9139 cx,
9140 );
9141
9142 let (local_selections, selected_buffer_ids): (
9143 Vec<Selection<Point>>,
9144 Vec<BufferId>,
9145 ) = self
9146 .editor_with_selections(cx)
9147 .map(|editor| {
9148 editor.update(cx, |editor, cx| {
9149 let all_selections =
9150 editor.selections.all::<Point>(&snapshot.display_snapshot);
9151 let selected_buffer_ids =
9152 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9153 Vec::new()
9154 } else {
9155 let mut selected_buffer_ids =
9156 Vec::with_capacity(all_selections.len());
9157
9158 for selection in all_selections {
9159 for buffer_id in snapshot
9160 .buffer_snapshot()
9161 .buffer_ids_for_range(selection.range())
9162 {
9163 if selected_buffer_ids.last() != Some(&buffer_id) {
9164 selected_buffer_ids.push(buffer_id);
9165 }
9166 }
9167 }
9168
9169 selected_buffer_ids
9170 };
9171
9172 let mut selections = editor.selections.disjoint_in_range(
9173 start_anchor..end_anchor,
9174 &snapshot.display_snapshot,
9175 );
9176 selections
9177 .extend(editor.selections.pending(&snapshot.display_snapshot));
9178
9179 (selections, selected_buffer_ids)
9180 })
9181 })
9182 .unwrap_or_default();
9183
9184 let (selections, mut active_rows, newest_selection_head) = self
9185 .layout_selections(
9186 start_anchor,
9187 end_anchor,
9188 &local_selections,
9189 &snapshot,
9190 start_row,
9191 end_row,
9192 window,
9193 cx,
9194 );
9195 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9196 editor.active_breakpoints(start_row..end_row, window, cx)
9197 });
9198 for (display_row, (_, bp, state)) in &breakpoint_rows {
9199 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9200 active_rows.entry(*display_row).or_default().breakpoint = true;
9201 }
9202 }
9203
9204 let line_numbers = self.layout_line_numbers(
9205 Some(&gutter_hitbox),
9206 gutter_dimensions,
9207 line_height,
9208 scroll_position,
9209 start_row..end_row,
9210 &row_infos,
9211 &active_rows,
9212 newest_selection_head,
9213 &snapshot,
9214 window,
9215 cx,
9216 );
9217
9218 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9219 // line numbers so we don't paint a line number debug accent color if a user
9220 // has their mouse over that line when a breakpoint isn't there
9221 self.editor.update(cx, |editor, _| {
9222 if let Some(phantom_breakpoint) = &mut editor
9223 .gutter_breakpoint_indicator
9224 .0
9225 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9226 {
9227 // Is there a non-phantom breakpoint on this line?
9228 phantom_breakpoint.collides_with_existing_breakpoint = true;
9229 breakpoint_rows
9230 .entry(phantom_breakpoint.display_row)
9231 .or_insert_with(|| {
9232 let position = snapshot.display_point_to_anchor(
9233 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9234 Bias::Right,
9235 );
9236 let breakpoint = Breakpoint::new_standard();
9237 phantom_breakpoint.collides_with_existing_breakpoint = false;
9238 (position, breakpoint, None)
9239 });
9240 }
9241 });
9242
9243 let mut expand_toggles =
9244 window.with_element_namespace("expand_toggles", |window| {
9245 self.layout_expand_toggles(
9246 &gutter_hitbox,
9247 gutter_dimensions,
9248 em_width,
9249 line_height,
9250 scroll_position,
9251 &row_infos,
9252 window,
9253 cx,
9254 )
9255 });
9256
9257 let mut crease_toggles =
9258 window.with_element_namespace("crease_toggles", |window| {
9259 self.layout_crease_toggles(
9260 start_row..end_row,
9261 &row_infos,
9262 &active_rows,
9263 &snapshot,
9264 window,
9265 cx,
9266 )
9267 });
9268 let crease_trailers =
9269 window.with_element_namespace("crease_trailers", |window| {
9270 self.layout_crease_trailers(
9271 row_infos.iter().copied(),
9272 &snapshot,
9273 window,
9274 cx,
9275 )
9276 });
9277
9278 let display_hunks = self.layout_gutter_diff_hunks(
9279 line_height,
9280 &gutter_hitbox,
9281 start_row..end_row,
9282 &snapshot,
9283 window,
9284 cx,
9285 );
9286
9287 let merged_highlighted_ranges =
9288 if let Some((_, colors)) = document_colors.as_ref() {
9289 &highlighted_ranges
9290 .clone()
9291 .into_iter()
9292 .chain(colors.clone())
9293 .collect()
9294 } else {
9295 &highlighted_ranges
9296 };
9297 let bg_segments_per_row = Self::bg_segments_per_row(
9298 start_row..end_row,
9299 &selections,
9300 &merged_highlighted_ranges,
9301 self.style.background,
9302 );
9303
9304 let mut line_layouts = Self::layout_lines(
9305 start_row..end_row,
9306 &snapshot,
9307 &self.style,
9308 editor_width,
9309 is_row_soft_wrapped,
9310 &bg_segments_per_row,
9311 window,
9312 cx,
9313 );
9314 let new_renderer_widths = (!is_minimap).then(|| {
9315 line_layouts
9316 .iter()
9317 .flat_map(|layout| &layout.fragments)
9318 .filter_map(|fragment| {
9319 if let LineFragment::Element { id, size, .. } = fragment {
9320 Some((*id, size.width))
9321 } else {
9322 None
9323 }
9324 })
9325 });
9326 if new_renderer_widths.is_some_and(|new_renderer_widths| {
9327 self.editor.update(cx, |editor, cx| {
9328 editor.update_renderer_widths(new_renderer_widths, cx)
9329 })
9330 }) {
9331 // If the fold widths have changed, we need to prepaint
9332 // the element again to account for any changes in
9333 // wrapping.
9334 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
9335 }
9336
9337 let longest_line_blame_width = self
9338 .editor
9339 .update(cx, |editor, cx| {
9340 if !editor.show_git_blame_inline {
9341 return None;
9342 }
9343 let blame = editor.blame.as_ref()?;
9344 let (_, blame_entry) = blame
9345 .update(cx, |blame, cx| {
9346 let row_infos =
9347 snapshot.row_infos(snapshot.longest_row()).next()?;
9348 blame.blame_for_rows(&[row_infos], cx).next()
9349 })
9350 .flatten()?;
9351 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
9352 let inline_blame_padding =
9353 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
9354 * em_advance;
9355 Some(
9356 element
9357 .layout_as_root(AvailableSpace::min_size(), window, cx)
9358 .width
9359 + inline_blame_padding,
9360 )
9361 })
9362 .unwrap_or(Pixels::ZERO);
9363
9364 let longest_line_width = layout_line(
9365 snapshot.longest_row(),
9366 &snapshot,
9367 style,
9368 editor_width,
9369 is_row_soft_wrapped,
9370 window,
9371 cx,
9372 )
9373 .width;
9374
9375 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
9376 text_hitbox.bounds,
9377 glyph_grid_cell,
9378 size(
9379 longest_line_width,
9380 Pixels::from(max_row.as_f64() * f64::from(line_height)),
9381 ),
9382 longest_line_blame_width,
9383 EditorSettings::get_global(cx),
9384 );
9385
9386 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
9387
9388 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
9389 snapshot.sticky_header_excerpt(scroll_position.y)
9390 } else {
9391 None
9392 };
9393 let sticky_header_excerpt_id =
9394 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
9395
9396 let blocks = (!is_minimap)
9397 .then(|| {
9398 window.with_element_namespace("blocks", |window| {
9399 self.render_blocks(
9400 start_row..end_row,
9401 &snapshot,
9402 &hitbox,
9403 &text_hitbox,
9404 editor_width,
9405 &mut scroll_width,
9406 &editor_margins,
9407 em_width,
9408 gutter_dimensions.full_width(),
9409 line_height,
9410 &mut line_layouts,
9411 &local_selections,
9412 &selected_buffer_ids,
9413 is_row_soft_wrapped,
9414 sticky_header_excerpt_id,
9415 window,
9416 cx,
9417 )
9418 })
9419 })
9420 .unwrap_or_else(|| Ok((Vec::default(), HashMap::default())));
9421 let (mut blocks, row_block_types) = match blocks {
9422 Ok(blocks) => blocks,
9423 Err(resized_blocks) => {
9424 self.editor.update(cx, |editor, cx| {
9425 editor.resize_blocks(
9426 resized_blocks,
9427 autoscroll_request.map(|(autoscroll, _)| autoscroll),
9428 cx,
9429 )
9430 });
9431 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
9432 }
9433 };
9434
9435 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
9436 window.with_element_namespace("blocks", |window| {
9437 self.layout_sticky_buffer_header(
9438 sticky_header_excerpt,
9439 scroll_position,
9440 line_height,
9441 right_margin,
9442 &snapshot,
9443 &hitbox,
9444 &selected_buffer_ids,
9445 &blocks,
9446 window,
9447 cx,
9448 )
9449 })
9450 });
9451
9452 let start_buffer_row =
9453 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
9454 let end_buffer_row =
9455 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
9456
9457 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
9458 ScrollPixelOffset::from(
9459 ((scroll_width - editor_width) / em_advance).max(0.0),
9460 ),
9461 max_scroll_top,
9462 );
9463
9464 self.editor.update(cx, |editor, cx| {
9465 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
9466 scroll_position.x = scroll_position.x.min(scroll_max.x);
9467 }
9468
9469 if needs_horizontal_autoscroll.0
9470 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
9471 start_row,
9472 editor_width,
9473 scroll_width,
9474 em_advance,
9475 &line_layouts,
9476 autoscroll_request,
9477 window,
9478 cx,
9479 )
9480 {
9481 scroll_position = new_scroll_position;
9482 }
9483 });
9484
9485 let scroll_pixel_position = point(
9486 scroll_position.x * f64::from(em_advance),
9487 scroll_position.y * f64::from(line_height),
9488 );
9489 let sticky_headers = if !is_minimap
9490 && is_singleton
9491 && EditorSettings::get_global(cx).sticky_scroll.enabled
9492 {
9493 self.layout_sticky_headers(
9494 &snapshot,
9495 editor_width,
9496 is_row_soft_wrapped,
9497 line_height,
9498 scroll_pixel_position,
9499 content_origin,
9500 &gutter_dimensions,
9501 &gutter_hitbox,
9502 &text_hitbox,
9503 window,
9504 cx,
9505 )
9506 } else {
9507 None
9508 };
9509 let indent_guides = self.layout_indent_guides(
9510 content_origin,
9511 text_hitbox.origin,
9512 start_buffer_row..end_buffer_row,
9513 scroll_pixel_position,
9514 line_height,
9515 &snapshot,
9516 window,
9517 cx,
9518 );
9519
9520 let crease_trailers =
9521 window.with_element_namespace("crease_trailers", |window| {
9522 self.prepaint_crease_trailers(
9523 crease_trailers,
9524 &line_layouts,
9525 line_height,
9526 content_origin,
9527 scroll_pixel_position,
9528 em_width,
9529 window,
9530 cx,
9531 )
9532 });
9533
9534 let (edit_prediction_popover, edit_prediction_popover_origin) = self
9535 .editor
9536 .update(cx, |editor, cx| {
9537 editor.render_edit_prediction_popover(
9538 &text_hitbox.bounds,
9539 content_origin,
9540 right_margin,
9541 &snapshot,
9542 start_row..end_row,
9543 scroll_position.y,
9544 scroll_position.y + height_in_lines,
9545 &line_layouts,
9546 line_height,
9547 scroll_position,
9548 scroll_pixel_position,
9549 newest_selection_head,
9550 editor_width,
9551 style,
9552 window,
9553 cx,
9554 )
9555 })
9556 .unzip();
9557
9558 let mut inline_diagnostics = self.layout_inline_diagnostics(
9559 &line_layouts,
9560 &crease_trailers,
9561 &row_block_types,
9562 content_origin,
9563 scroll_position,
9564 scroll_pixel_position,
9565 edit_prediction_popover_origin,
9566 start_row,
9567 end_row,
9568 line_height,
9569 em_width,
9570 style,
9571 window,
9572 cx,
9573 );
9574
9575 let mut inline_blame_layout = None;
9576 let mut inline_code_actions = None;
9577 if let Some(newest_selection_head) = newest_selection_head {
9578 let display_row = newest_selection_head.row();
9579 if (start_row..end_row).contains(&display_row)
9580 && !row_block_types.contains_key(&display_row)
9581 {
9582 inline_code_actions = self.layout_inline_code_actions(
9583 newest_selection_head,
9584 content_origin,
9585 scroll_position,
9586 scroll_pixel_position,
9587 line_height,
9588 &snapshot,
9589 window,
9590 cx,
9591 );
9592
9593 let line_ix = display_row.minus(start_row) as usize;
9594 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
9595 row_infos.get(line_ix),
9596 line_layouts.get(line_ix),
9597 crease_trailers.get(line_ix),
9598 ) {
9599 let crease_trailer_layout = crease_trailer.as_ref();
9600 if let Some(layout) = self.layout_inline_blame(
9601 display_row,
9602 row_info,
9603 line_layout,
9604 crease_trailer_layout,
9605 em_width,
9606 content_origin,
9607 scroll_position,
9608 scroll_pixel_position,
9609 line_height,
9610 &text_hitbox,
9611 window,
9612 cx,
9613 ) {
9614 inline_blame_layout = Some(layout);
9615 // Blame overrides inline diagnostics
9616 inline_diagnostics.remove(&display_row);
9617 }
9618 } else {
9619 log::error!(
9620 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
9621 line_layouts.len(): {}, \
9622 crease_trailers.len(): {}",
9623 line_ix,
9624 row_infos.len(),
9625 line_layouts.len(),
9626 crease_trailers.len(),
9627 );
9628 }
9629 }
9630 }
9631
9632 let blamed_display_rows = self.layout_blame_entries(
9633 &row_infos,
9634 em_width,
9635 scroll_position,
9636 line_height,
9637 &gutter_hitbox,
9638 gutter_dimensions.git_blame_entries_width,
9639 window,
9640 cx,
9641 );
9642
9643 let line_elements = self.prepaint_lines(
9644 start_row,
9645 &mut line_layouts,
9646 line_height,
9647 scroll_position,
9648 scroll_pixel_position,
9649 content_origin,
9650 window,
9651 cx,
9652 );
9653
9654 window.with_element_namespace("blocks", |window| {
9655 self.layout_blocks(
9656 &mut blocks,
9657 &hitbox,
9658 line_height,
9659 scroll_position,
9660 scroll_pixel_position,
9661 window,
9662 cx,
9663 );
9664 });
9665
9666 let cursors = self.collect_cursors(&snapshot, cx);
9667 let visible_row_range = start_row..end_row;
9668 let non_visible_cursors = cursors
9669 .iter()
9670 .any(|c| !visible_row_range.contains(&c.0.row()));
9671
9672 let visible_cursors = self.layout_visible_cursors(
9673 &snapshot,
9674 &selections,
9675 &row_block_types,
9676 start_row..end_row,
9677 &line_layouts,
9678 &text_hitbox,
9679 content_origin,
9680 scroll_position,
9681 scroll_pixel_position,
9682 line_height,
9683 em_width,
9684 em_advance,
9685 autoscroll_containing_element,
9686 window,
9687 cx,
9688 );
9689
9690 let scrollbars_layout = self.layout_scrollbars(
9691 &snapshot,
9692 &scrollbar_layout_information,
9693 content_offset,
9694 scroll_position,
9695 non_visible_cursors,
9696 right_margin,
9697 editor_width,
9698 window,
9699 cx,
9700 );
9701
9702 let gutter_settings = EditorSettings::get_global(cx).gutter;
9703
9704 let context_menu_layout =
9705 if let Some(newest_selection_head) = newest_selection_head {
9706 let newest_selection_point =
9707 newest_selection_head.to_point(&snapshot.display_snapshot);
9708 if (start_row..end_row).contains(&newest_selection_head.row()) {
9709 self.layout_cursor_popovers(
9710 line_height,
9711 &text_hitbox,
9712 content_origin,
9713 right_margin,
9714 start_row,
9715 scroll_pixel_position,
9716 &line_layouts,
9717 newest_selection_head,
9718 newest_selection_point,
9719 style,
9720 window,
9721 cx,
9722 )
9723 } else {
9724 None
9725 }
9726 } else {
9727 None
9728 };
9729
9730 self.layout_gutter_menu(
9731 line_height,
9732 &text_hitbox,
9733 content_origin,
9734 right_margin,
9735 scroll_pixel_position,
9736 gutter_dimensions.width - gutter_dimensions.left_padding,
9737 window,
9738 cx,
9739 );
9740
9741 let test_indicators = if gutter_settings.runnables {
9742 self.layout_run_indicators(
9743 line_height,
9744 start_row..end_row,
9745 &row_infos,
9746 scroll_position,
9747 &gutter_dimensions,
9748 &gutter_hitbox,
9749 &display_hunks,
9750 &snapshot,
9751 &mut breakpoint_rows,
9752 window,
9753 cx,
9754 )
9755 } else {
9756 Vec::new()
9757 };
9758
9759 let show_breakpoints = snapshot
9760 .show_breakpoints
9761 .unwrap_or(gutter_settings.breakpoints);
9762 let breakpoints = if show_breakpoints {
9763 self.layout_breakpoints(
9764 line_height,
9765 start_row..end_row,
9766 scroll_position,
9767 &gutter_dimensions,
9768 &gutter_hitbox,
9769 &display_hunks,
9770 &snapshot,
9771 breakpoint_rows,
9772 &row_infos,
9773 window,
9774 cx,
9775 )
9776 } else {
9777 Vec::new()
9778 };
9779
9780 self.layout_signature_help(
9781 &hitbox,
9782 content_origin,
9783 scroll_pixel_position,
9784 newest_selection_head,
9785 start_row,
9786 &line_layouts,
9787 line_height,
9788 em_width,
9789 context_menu_layout,
9790 window,
9791 cx,
9792 );
9793
9794 if !cx.has_active_drag() {
9795 self.layout_hover_popovers(
9796 &snapshot,
9797 &hitbox,
9798 start_row..end_row,
9799 content_origin,
9800 scroll_pixel_position,
9801 &line_layouts,
9802 line_height,
9803 em_width,
9804 context_menu_layout,
9805 window,
9806 cx,
9807 );
9808 }
9809
9810 let mouse_context_menu = self.layout_mouse_context_menu(
9811 &snapshot,
9812 start_row..end_row,
9813 content_origin,
9814 window,
9815 cx,
9816 );
9817
9818 window.with_element_namespace("crease_toggles", |window| {
9819 self.prepaint_crease_toggles(
9820 &mut crease_toggles,
9821 line_height,
9822 &gutter_dimensions,
9823 gutter_settings,
9824 scroll_pixel_position,
9825 &gutter_hitbox,
9826 window,
9827 cx,
9828 )
9829 });
9830
9831 window.with_element_namespace("expand_toggles", |window| {
9832 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
9833 });
9834
9835 let wrap_guides = self.layout_wrap_guides(
9836 em_advance,
9837 scroll_position,
9838 content_origin,
9839 scrollbars_layout.as_ref(),
9840 vertical_scrollbar_width,
9841 &hitbox,
9842 window,
9843 cx,
9844 );
9845
9846 let minimap = window.with_element_namespace("minimap", |window| {
9847 self.layout_minimap(
9848 &snapshot,
9849 minimap_width,
9850 scroll_position,
9851 &scrollbar_layout_information,
9852 scrollbars_layout.as_ref(),
9853 window,
9854 cx,
9855 )
9856 });
9857
9858 let invisible_symbol_font_size = font_size / 2.;
9859 let whitespace_map = &self
9860 .editor
9861 .read(cx)
9862 .buffer
9863 .read(cx)
9864 .language_settings(cx)
9865 .whitespace_map;
9866
9867 let tab_char = whitespace_map.tab.clone();
9868 let tab_len = tab_char.len();
9869 let tab_invisible = window.text_system().shape_line(
9870 tab_char,
9871 invisible_symbol_font_size,
9872 &[TextRun {
9873 len: tab_len,
9874 font: self.style.text.font(),
9875 color: cx.theme().colors().editor_invisible,
9876 ..Default::default()
9877 }],
9878 None,
9879 );
9880
9881 let space_char = whitespace_map.space.clone();
9882 let space_len = space_char.len();
9883 let space_invisible = window.text_system().shape_line(
9884 space_char,
9885 invisible_symbol_font_size,
9886 &[TextRun {
9887 len: space_len,
9888 font: self.style.text.font(),
9889 color: cx.theme().colors().editor_invisible,
9890 ..Default::default()
9891 }],
9892 None,
9893 );
9894
9895 let mode = snapshot.mode.clone();
9896
9897 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
9898 (vec![], vec![])
9899 } else {
9900 self.layout_diff_hunk_controls(
9901 start_row..end_row,
9902 &row_infos,
9903 &text_hitbox,
9904 newest_selection_head,
9905 line_height,
9906 right_margin,
9907 scroll_pixel_position,
9908 &display_hunks,
9909 &highlighted_rows,
9910 self.editor.clone(),
9911 window,
9912 cx,
9913 )
9914 };
9915
9916 let position_map = Rc::new(PositionMap {
9917 size: bounds.size,
9918 visible_row_range,
9919 scroll_position,
9920 scroll_pixel_position,
9921 scroll_max,
9922 line_layouts,
9923 line_height,
9924 em_width,
9925 em_advance,
9926 snapshot,
9927 gutter_hitbox: gutter_hitbox.clone(),
9928 text_hitbox: text_hitbox.clone(),
9929 inline_blame_bounds: inline_blame_layout
9930 .as_ref()
9931 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
9932 display_hunks: display_hunks.clone(),
9933 diff_hunk_control_bounds,
9934 });
9935
9936 self.editor.update(cx, |editor, _| {
9937 editor.last_position_map = Some(position_map.clone())
9938 });
9939
9940 EditorLayout {
9941 mode,
9942 position_map,
9943 visible_display_row_range: start_row..end_row,
9944 wrap_guides,
9945 indent_guides,
9946 hitbox,
9947 gutter_hitbox,
9948 display_hunks,
9949 content_origin,
9950 scrollbars_layout,
9951 minimap,
9952 active_rows,
9953 highlighted_rows,
9954 highlighted_ranges,
9955 highlighted_gutter_ranges,
9956 redacted_ranges,
9957 document_colors,
9958 line_elements,
9959 line_numbers,
9960 blamed_display_rows,
9961 inline_diagnostics,
9962 inline_blame_layout,
9963 inline_code_actions,
9964 blocks,
9965 cursors,
9966 visible_cursors,
9967 selections,
9968 edit_prediction_popover,
9969 diff_hunk_controls,
9970 mouse_context_menu,
9971 test_indicators,
9972 breakpoints,
9973 crease_toggles,
9974 crease_trailers,
9975 tab_invisible,
9976 space_invisible,
9977 sticky_buffer_header,
9978 sticky_headers,
9979 expand_toggles,
9980 }
9981 })
9982 })
9983 })
9984 }
9985
9986 fn paint(
9987 &mut self,
9988 _: Option<&GlobalElementId>,
9989 _inspector_id: Option<&gpui::InspectorElementId>,
9990 bounds: Bounds<gpui::Pixels>,
9991 _: &mut Self::RequestLayoutState,
9992 layout: &mut Self::PrepaintState,
9993 window: &mut Window,
9994 cx: &mut App,
9995 ) {
9996 if !layout.mode.is_minimap() {
9997 let focus_handle = self.editor.focus_handle(cx);
9998 let key_context = self
9999 .editor
10000 .update(cx, |editor, cx| editor.key_context(window, cx));
10001
10002 window.set_key_context(key_context);
10003 window.handle_input(
10004 &focus_handle,
10005 ElementInputHandler::new(bounds, self.editor.clone()),
10006 cx,
10007 );
10008 self.register_actions(window, cx);
10009 self.register_key_listeners(window, cx, layout);
10010 }
10011
10012 let text_style = TextStyleRefinement {
10013 font_size: Some(self.style.text.font_size),
10014 line_height: Some(self.style.text.line_height),
10015 ..Default::default()
10016 };
10017 let rem_size = self.rem_size(cx);
10018 window.with_rem_size(rem_size, |window| {
10019 window.with_text_style(Some(text_style), |window| {
10020 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10021 self.paint_mouse_listeners(layout, window, cx);
10022 self.paint_background(layout, window, cx);
10023 self.paint_indent_guides(layout, window, cx);
10024
10025 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10026 self.paint_blamed_display_rows(layout, window, cx);
10027 self.paint_line_numbers(layout, window, cx);
10028 }
10029
10030 self.paint_text(layout, window, cx);
10031
10032 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10033 self.paint_gutter_highlights(layout, window, cx);
10034 self.paint_gutter_indicators(layout, window, cx);
10035 }
10036
10037 if !layout.blocks.is_empty() {
10038 window.with_element_namespace("blocks", |window| {
10039 self.paint_blocks(layout, window, cx);
10040 });
10041 }
10042
10043 window.with_element_namespace("blocks", |window| {
10044 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10045 sticky_header.paint(window, cx)
10046 }
10047 });
10048
10049 self.paint_sticky_headers(layout, window, cx);
10050 self.paint_minimap(layout, window, cx);
10051 self.paint_scrollbars(layout, window, cx);
10052 self.paint_edit_prediction_popover(layout, window, cx);
10053 self.paint_mouse_context_menu(layout, window, cx);
10054 });
10055 })
10056 })
10057 }
10058}
10059
10060pub(super) fn gutter_bounds(
10061 editor_bounds: Bounds<Pixels>,
10062 gutter_dimensions: GutterDimensions,
10063) -> Bounds<Pixels> {
10064 Bounds {
10065 origin: editor_bounds.origin,
10066 size: size(gutter_dimensions.width, editor_bounds.size.height),
10067 }
10068}
10069
10070#[derive(Clone, Copy)]
10071struct ContextMenuLayout {
10072 y_flipped: bool,
10073 bounds: Bounds<Pixels>,
10074}
10075
10076/// Holds information required for layouting the editor scrollbars.
10077struct ScrollbarLayoutInformation {
10078 /// The bounds of the editor area (excluding the content offset).
10079 editor_bounds: Bounds<Pixels>,
10080 /// The available range to scroll within the document.
10081 scroll_range: Size<Pixels>,
10082 /// The space available for one glyph in the editor.
10083 glyph_grid_cell: Size<Pixels>,
10084}
10085
10086impl ScrollbarLayoutInformation {
10087 pub fn new(
10088 editor_bounds: Bounds<Pixels>,
10089 glyph_grid_cell: Size<Pixels>,
10090 document_size: Size<Pixels>,
10091 longest_line_blame_width: Pixels,
10092 settings: &EditorSettings,
10093 ) -> Self {
10094 let vertical_overscroll = match settings.scroll_beyond_last_line {
10095 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10096 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10097 ScrollBeyondLastLine::VerticalScrollMargin => {
10098 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10099 }
10100 };
10101
10102 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10103
10104 ScrollbarLayoutInformation {
10105 editor_bounds,
10106 scroll_range: document_size + overscroll,
10107 glyph_grid_cell,
10108 }
10109 }
10110}
10111
10112impl IntoElement for EditorElement {
10113 type Element = Self;
10114
10115 fn into_element(self) -> Self::Element {
10116 self
10117 }
10118}
10119
10120pub struct EditorLayout {
10121 position_map: Rc<PositionMap>,
10122 hitbox: Hitbox,
10123 gutter_hitbox: Hitbox,
10124 content_origin: gpui::Point<Pixels>,
10125 scrollbars_layout: Option<EditorScrollbars>,
10126 minimap: Option<MinimapLayout>,
10127 mode: EditorMode,
10128 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
10129 indent_guides: Option<Vec<IndentGuideLayout>>,
10130 visible_display_row_range: Range<DisplayRow>,
10131 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
10132 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
10133 line_elements: SmallVec<[AnyElement; 1]>,
10134 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
10135 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10136 blamed_display_rows: Option<Vec<AnyElement>>,
10137 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
10138 inline_blame_layout: Option<InlineBlameLayout>,
10139 inline_code_actions: Option<AnyElement>,
10140 blocks: Vec<BlockLayout>,
10141 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10142 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10143 redacted_ranges: Vec<Range<DisplayPoint>>,
10144 cursors: Vec<(DisplayPoint, Hsla)>,
10145 visible_cursors: Vec<CursorLayout>,
10146 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
10147 test_indicators: Vec<AnyElement>,
10148 breakpoints: Vec<AnyElement>,
10149 crease_toggles: Vec<Option<AnyElement>>,
10150 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
10151 diff_hunk_controls: Vec<AnyElement>,
10152 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
10153 edit_prediction_popover: Option<AnyElement>,
10154 mouse_context_menu: Option<AnyElement>,
10155 tab_invisible: ShapedLine,
10156 space_invisible: ShapedLine,
10157 sticky_buffer_header: Option<AnyElement>,
10158 sticky_headers: Option<StickyHeaders>,
10159 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
10160}
10161
10162struct StickyHeaders {
10163 lines: Vec<StickyHeaderLine>,
10164 gutter_background: Hsla,
10165 content_background: Hsla,
10166 gutter_right_padding: Pixels,
10167}
10168
10169struct StickyHeaderLine {
10170 row: DisplayRow,
10171 offset: Pixels,
10172 line: LineWithInvisibles,
10173 line_number: Option<ShapedLine>,
10174 elements: SmallVec<[AnyElement; 1]>,
10175 available_text_width: Pixels,
10176 target_anchor: Anchor,
10177 hitbox: Hitbox,
10178}
10179
10180impl EditorLayout {
10181 fn line_end_overshoot(&self) -> Pixels {
10182 0.15 * self.position_map.line_height
10183 }
10184}
10185
10186impl StickyHeaders {
10187 fn paint(
10188 &mut self,
10189 layout: &mut EditorLayout,
10190 whitespace_setting: ShowWhitespaceSetting,
10191 window: &mut Window,
10192 cx: &mut App,
10193 ) {
10194 let line_height = layout.position_map.line_height;
10195
10196 for line in self.lines.iter_mut().rev() {
10197 window.paint_layer(
10198 Bounds::new(
10199 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10200 size(line.hitbox.size.width, line_height),
10201 ),
10202 |window| {
10203 let gutter_bounds = Bounds::new(
10204 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10205 size(layout.gutter_hitbox.size.width, line_height),
10206 );
10207 window.paint_quad(fill(gutter_bounds, self.gutter_background));
10208
10209 let text_bounds = Bounds::new(
10210 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
10211 size(line.available_text_width, line_height),
10212 );
10213 window.paint_quad(fill(text_bounds, self.content_background));
10214
10215 if line.hitbox.is_hovered(window) {
10216 let hover_overlay = cx.theme().colors().panel_overlay_hover;
10217 window.paint_quad(fill(gutter_bounds, hover_overlay));
10218 window.paint_quad(fill(text_bounds, hover_overlay));
10219 }
10220
10221 line.paint(
10222 layout,
10223 self.gutter_right_padding,
10224 line.available_text_width,
10225 layout.content_origin,
10226 line_height,
10227 whitespace_setting,
10228 window,
10229 cx,
10230 );
10231 },
10232 );
10233
10234 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
10235 }
10236 }
10237}
10238
10239impl StickyHeaderLine {
10240 fn new(
10241 row: DisplayRow,
10242 offset: Pixels,
10243 mut line: LineWithInvisibles,
10244 line_number: Option<ShapedLine>,
10245 target_anchor: Anchor,
10246 line_height: Pixels,
10247 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10248 content_origin: gpui::Point<Pixels>,
10249 gutter_hitbox: &Hitbox,
10250 text_hitbox: &Hitbox,
10251 window: &mut Window,
10252 cx: &mut App,
10253 ) -> Self {
10254 let mut elements = SmallVec::<[AnyElement; 1]>::new();
10255 line.prepaint_with_custom_offset(
10256 line_height,
10257 scroll_pixel_position,
10258 content_origin,
10259 offset,
10260 &mut elements,
10261 window,
10262 cx,
10263 );
10264
10265 let hitbox_bounds = Bounds::new(
10266 gutter_hitbox.origin + point(Pixels::ZERO, offset),
10267 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
10268 );
10269 let available_text_width =
10270 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
10271
10272 Self {
10273 row,
10274 offset,
10275 line,
10276 line_number,
10277 elements,
10278 available_text_width,
10279 target_anchor,
10280 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
10281 }
10282 }
10283
10284 fn paint(
10285 &mut self,
10286 layout: &EditorLayout,
10287 gutter_right_padding: Pixels,
10288 available_text_width: Pixels,
10289 content_origin: gpui::Point<Pixels>,
10290 line_height: Pixels,
10291 whitespace_setting: ShowWhitespaceSetting,
10292 window: &mut Window,
10293 cx: &mut App,
10294 ) {
10295 window.with_content_mask(
10296 Some(ContentMask {
10297 bounds: Bounds::new(
10298 layout.position_map.text_hitbox.bounds.origin
10299 + point(Pixels::ZERO, self.offset),
10300 size(available_text_width, line_height),
10301 ),
10302 }),
10303 |window| {
10304 self.line.draw_with_custom_offset(
10305 layout,
10306 self.row,
10307 content_origin,
10308 self.offset,
10309 whitespace_setting,
10310 &[],
10311 window,
10312 cx,
10313 );
10314 for element in &mut self.elements {
10315 element.paint(window, cx);
10316 }
10317 },
10318 );
10319
10320 if let Some(line_number) = &self.line_number {
10321 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
10322 let gutter_width = layout.gutter_hitbox.size.width;
10323 let origin = point(
10324 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
10325 gutter_origin.y,
10326 );
10327 line_number.paint(origin, line_height, window, cx).log_err();
10328 }
10329 }
10330}
10331
10332#[derive(Debug)]
10333struct LineNumberSegment {
10334 shaped_line: ShapedLine,
10335 hitbox: Option<Hitbox>,
10336}
10337
10338#[derive(Debug)]
10339struct LineNumberLayout {
10340 segments: SmallVec<[LineNumberSegment; 1]>,
10341}
10342
10343struct ColoredRange<T> {
10344 start: T,
10345 end: T,
10346 color: Hsla,
10347}
10348
10349impl Along for ScrollbarAxes {
10350 type Unit = bool;
10351
10352 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
10353 match axis {
10354 ScrollbarAxis::Horizontal => self.horizontal,
10355 ScrollbarAxis::Vertical => self.vertical,
10356 }
10357 }
10358
10359 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
10360 match axis {
10361 ScrollbarAxis::Horizontal => ScrollbarAxes {
10362 horizontal: f(self.horizontal),
10363 vertical: self.vertical,
10364 },
10365 ScrollbarAxis::Vertical => ScrollbarAxes {
10366 horizontal: self.horizontal,
10367 vertical: f(self.vertical),
10368 },
10369 }
10370 }
10371}
10372
10373#[derive(Clone)]
10374struct EditorScrollbars {
10375 pub vertical: Option<ScrollbarLayout>,
10376 pub horizontal: Option<ScrollbarLayout>,
10377 pub visible: bool,
10378}
10379
10380impl EditorScrollbars {
10381 pub fn from_scrollbar_axes(
10382 show_scrollbar: ScrollbarAxes,
10383 layout_information: &ScrollbarLayoutInformation,
10384 content_offset: gpui::Point<Pixels>,
10385 scroll_position: gpui::Point<f64>,
10386 scrollbar_width: Pixels,
10387 right_margin: Pixels,
10388 editor_width: Pixels,
10389 show_scrollbars: bool,
10390 scrollbar_state: Option<&ActiveScrollbarState>,
10391 window: &mut Window,
10392 ) -> Self {
10393 let ScrollbarLayoutInformation {
10394 editor_bounds,
10395 scroll_range,
10396 glyph_grid_cell,
10397 } = layout_information;
10398
10399 let viewport_size = size(editor_width, editor_bounds.size.height);
10400
10401 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
10402 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
10403 Corner::BottomLeft,
10404 editor_bounds.bottom_left(),
10405 size(
10406 // The horizontal viewport size differs from the space available for the
10407 // horizontal scrollbar, so we have to manually stitch it together here.
10408 editor_bounds.size.width - right_margin,
10409 scrollbar_width,
10410 ),
10411 ),
10412 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
10413 Corner::TopRight,
10414 editor_bounds.top_right(),
10415 size(scrollbar_width, viewport_size.height),
10416 ),
10417 };
10418
10419 let mut create_scrollbar_layout = |axis| {
10420 let viewport_size = viewport_size.along(axis);
10421 let scroll_range = scroll_range.along(axis);
10422
10423 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
10424 (show_scrollbar.along(axis)
10425 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
10426 .then(|| {
10427 ScrollbarLayout::new(
10428 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
10429 viewport_size,
10430 scroll_range,
10431 glyph_grid_cell.along(axis),
10432 content_offset.along(axis),
10433 scroll_position.along(axis),
10434 show_scrollbars,
10435 axis,
10436 )
10437 .with_thumb_state(
10438 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
10439 )
10440 })
10441 };
10442
10443 Self {
10444 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
10445 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
10446 visible: show_scrollbars,
10447 }
10448 }
10449
10450 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
10451 [
10452 (&self.vertical, ScrollbarAxis::Vertical),
10453 (&self.horizontal, ScrollbarAxis::Horizontal),
10454 ]
10455 .into_iter()
10456 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
10457 }
10458
10459 /// Returns the currently hovered scrollbar axis, if any.
10460 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
10461 self.iter_scrollbars()
10462 .find(|s| s.0.hitbox.is_hovered(window))
10463 }
10464}
10465
10466#[derive(Clone)]
10467struct ScrollbarLayout {
10468 hitbox: Hitbox,
10469 visible_range: Range<ScrollOffset>,
10470 text_unit_size: Pixels,
10471 thumb_bounds: Option<Bounds<Pixels>>,
10472 thumb_state: ScrollbarThumbState,
10473}
10474
10475impl ScrollbarLayout {
10476 const BORDER_WIDTH: Pixels = px(1.0);
10477 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
10478 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
10479 const MIN_THUMB_SIZE: Pixels = px(25.0);
10480
10481 fn new(
10482 scrollbar_track_hitbox: Hitbox,
10483 viewport_size: Pixels,
10484 scroll_range: Pixels,
10485 glyph_space: Pixels,
10486 content_offset: Pixels,
10487 scroll_position: ScrollOffset,
10488 show_thumb: bool,
10489 axis: ScrollbarAxis,
10490 ) -> Self {
10491 let track_bounds = scrollbar_track_hitbox.bounds;
10492 // The length of the track available to the scrollbar thumb. We deliberately
10493 // exclude the content size here so that the thumb aligns with the content.
10494 let track_length = track_bounds.size.along(axis) - content_offset;
10495
10496 Self::new_with_hitbox_and_track_length(
10497 scrollbar_track_hitbox,
10498 track_length,
10499 viewport_size,
10500 scroll_range.into(),
10501 glyph_space,
10502 content_offset.into(),
10503 scroll_position,
10504 show_thumb,
10505 axis,
10506 )
10507 }
10508
10509 fn for_minimap(
10510 minimap_track_hitbox: Hitbox,
10511 visible_lines: f64,
10512 total_editor_lines: f64,
10513 minimap_line_height: Pixels,
10514 scroll_position: ScrollOffset,
10515 minimap_scroll_top: ScrollOffset,
10516 show_thumb: bool,
10517 ) -> Self {
10518 // The scrollbar thumb size is calculated as
10519 // (visible_content/total_content) Γ scrollbar_track_length.
10520 //
10521 // For the minimap's thumb layout, we leverage this by setting the
10522 // scrollbar track length to the entire document size (using minimap line
10523 // height). This creates a thumb that exactly represents the editor
10524 // viewport scaled to minimap proportions.
10525 //
10526 // We adjust the thumb position relative to `minimap_scroll_top` to
10527 // accommodate for the deliberately oversized track.
10528 //
10529 // This approach ensures that the minimap thumb accurately reflects the
10530 // editor's current scroll position whilst nicely synchronizing the minimap
10531 // thumb and scrollbar thumb.
10532 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
10533 let viewport_size = visible_lines * f64::from(minimap_line_height);
10534
10535 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
10536
10537 Self::new_with_hitbox_and_track_length(
10538 minimap_track_hitbox,
10539 Pixels::from(scroll_range),
10540 Pixels::from(viewport_size),
10541 scroll_range,
10542 minimap_line_height,
10543 track_top_offset,
10544 scroll_position,
10545 show_thumb,
10546 ScrollbarAxis::Vertical,
10547 )
10548 }
10549
10550 fn new_with_hitbox_and_track_length(
10551 scrollbar_track_hitbox: Hitbox,
10552 track_length: Pixels,
10553 viewport_size: Pixels,
10554 scroll_range: f64,
10555 glyph_space: Pixels,
10556 content_offset: ScrollOffset,
10557 scroll_position: ScrollOffset,
10558 show_thumb: bool,
10559 axis: ScrollbarAxis,
10560 ) -> Self {
10561 let text_units_per_page = f64::from(viewport_size / glyph_space);
10562 let visible_range = scroll_position..scroll_position + text_units_per_page;
10563 let total_text_units = scroll_range / f64::from(glyph_space);
10564
10565 let thumb_percentage = text_units_per_page / total_text_units;
10566 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
10567 .max(ScrollbarLayout::MIN_THUMB_SIZE)
10568 .min(track_length);
10569
10570 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
10571
10572 let content_larger_than_viewport = text_unit_divisor > 0.;
10573
10574 let text_unit_size = if content_larger_than_viewport {
10575 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
10576 } else {
10577 glyph_space
10578 };
10579
10580 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
10581 Self::thumb_bounds(
10582 &scrollbar_track_hitbox,
10583 content_offset,
10584 visible_range.start,
10585 text_unit_size,
10586 thumb_size,
10587 axis,
10588 )
10589 });
10590
10591 ScrollbarLayout {
10592 hitbox: scrollbar_track_hitbox,
10593 visible_range,
10594 text_unit_size,
10595 thumb_bounds,
10596 thumb_state: Default::default(),
10597 }
10598 }
10599
10600 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
10601 if let Some(thumb_state) = thumb_state {
10602 Self {
10603 thumb_state,
10604 ..self
10605 }
10606 } else {
10607 self
10608 }
10609 }
10610
10611 fn thumb_bounds(
10612 scrollbar_track: &Hitbox,
10613 content_offset: f64,
10614 visible_range_start: f64,
10615 text_unit_size: Pixels,
10616 thumb_size: Pixels,
10617 axis: ScrollbarAxis,
10618 ) -> Bounds<Pixels> {
10619 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
10620 origin
10621 + Pixels::from(
10622 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
10623 )
10624 });
10625 Bounds::new(
10626 thumb_origin,
10627 scrollbar_track.size.apply_along(axis, |_| thumb_size),
10628 )
10629 }
10630
10631 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
10632 self.thumb_bounds
10633 .is_some_and(|bounds| bounds.contains(position))
10634 }
10635
10636 fn marker_quads_for_ranges(
10637 &self,
10638 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
10639 column: Option<usize>,
10640 ) -> Vec<PaintQuad> {
10641 struct MinMax {
10642 min: Pixels,
10643 max: Pixels,
10644 }
10645 let (x_range, height_limit) = if let Some(column) = column {
10646 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
10647 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
10648 let end = start + column_width;
10649 (
10650 Range { start, end },
10651 MinMax {
10652 min: Self::MIN_MARKER_HEIGHT,
10653 max: px(f32::MAX),
10654 },
10655 )
10656 } else {
10657 (
10658 Range {
10659 start: Self::BORDER_WIDTH,
10660 end: self.hitbox.size.width,
10661 },
10662 MinMax {
10663 min: Self::LINE_MARKER_HEIGHT,
10664 max: Self::LINE_MARKER_HEIGHT,
10665 },
10666 )
10667 };
10668
10669 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
10670 let mut pixel_ranges = row_ranges
10671 .into_iter()
10672 .map(|range| {
10673 let start_y = row_to_y(range.start);
10674 let end_y = row_to_y(range.end)
10675 + self
10676 .text_unit_size
10677 .max(height_limit.min)
10678 .min(height_limit.max);
10679 ColoredRange {
10680 start: start_y,
10681 end: end_y,
10682 color: range.color,
10683 }
10684 })
10685 .peekable();
10686
10687 let mut quads = Vec::new();
10688 while let Some(mut pixel_range) = pixel_ranges.next() {
10689 while let Some(next_pixel_range) = pixel_ranges.peek() {
10690 if pixel_range.end >= next_pixel_range.start - px(1.0)
10691 && pixel_range.color == next_pixel_range.color
10692 {
10693 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
10694 pixel_ranges.next();
10695 } else {
10696 break;
10697 }
10698 }
10699
10700 let bounds = Bounds::from_corners(
10701 point(x_range.start, pixel_range.start),
10702 point(x_range.end, pixel_range.end),
10703 );
10704 quads.push(quad(
10705 bounds,
10706 Corners::default(),
10707 pixel_range.color,
10708 Edges::default(),
10709 Hsla::transparent_black(),
10710 BorderStyle::default(),
10711 ));
10712 }
10713
10714 quads
10715 }
10716}
10717
10718struct MinimapLayout {
10719 pub minimap: AnyElement,
10720 pub thumb_layout: ScrollbarLayout,
10721 pub minimap_scroll_top: ScrollOffset,
10722 pub minimap_line_height: Pixels,
10723 pub thumb_border_style: MinimapThumbBorder,
10724 pub max_scroll_top: ScrollOffset,
10725}
10726
10727impl MinimapLayout {
10728 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
10729 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
10730 /// The minimap width as a percentage of the editor width.
10731 const MINIMAP_WIDTH_PCT: f32 = 0.15;
10732 /// Calculates the scroll top offset the minimap editor has to have based on the
10733 /// current scroll progress.
10734 fn calculate_minimap_top_offset(
10735 document_lines: f64,
10736 visible_editor_lines: f64,
10737 visible_minimap_lines: f64,
10738 scroll_position: f64,
10739 ) -> ScrollOffset {
10740 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
10741 if non_visible_document_lines == 0. {
10742 0.
10743 } else {
10744 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
10745 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
10746 }
10747 }
10748}
10749
10750struct CreaseTrailerLayout {
10751 element: AnyElement,
10752 bounds: Bounds<Pixels>,
10753}
10754
10755pub(crate) struct PositionMap {
10756 pub size: Size<Pixels>,
10757 pub line_height: Pixels,
10758 pub scroll_position: gpui::Point<ScrollOffset>,
10759 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10760 pub scroll_max: gpui::Point<ScrollOffset>,
10761 pub em_width: Pixels,
10762 pub em_advance: Pixels,
10763 pub visible_row_range: Range<DisplayRow>,
10764 pub line_layouts: Vec<LineWithInvisibles>,
10765 pub snapshot: EditorSnapshot,
10766 pub text_hitbox: Hitbox,
10767 pub gutter_hitbox: Hitbox,
10768 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
10769 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10770 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
10771}
10772
10773#[derive(Debug, Copy, Clone)]
10774pub struct PointForPosition {
10775 pub previous_valid: DisplayPoint,
10776 pub next_valid: DisplayPoint,
10777 pub exact_unclipped: DisplayPoint,
10778 pub column_overshoot_after_line_end: u32,
10779}
10780
10781impl PointForPosition {
10782 pub fn as_valid(&self) -> Option<DisplayPoint> {
10783 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
10784 Some(self.previous_valid)
10785 } else {
10786 None
10787 }
10788 }
10789
10790 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
10791 let Some(valid_point) = self.as_valid() else {
10792 return false;
10793 };
10794 let range = selection.range();
10795
10796 let candidate_row = valid_point.row();
10797 let candidate_col = valid_point.column();
10798
10799 let start_row = range.start.row();
10800 let start_col = range.start.column();
10801 let end_row = range.end.row();
10802 let end_col = range.end.column();
10803
10804 if candidate_row < start_row || candidate_row > end_row {
10805 false
10806 } else if start_row == end_row {
10807 candidate_col >= start_col && candidate_col < end_col
10808 } else if candidate_row == start_row {
10809 candidate_col >= start_col
10810 } else if candidate_row == end_row {
10811 candidate_col < end_col
10812 } else {
10813 true
10814 }
10815 }
10816}
10817
10818impl PositionMap {
10819 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
10820 let text_bounds = self.text_hitbox.bounds;
10821 let scroll_position = self.snapshot.scroll_position();
10822 let position = position - text_bounds.origin;
10823 let y = position.y.max(px(0.)).min(self.size.height);
10824 let x = position.x + (scroll_position.x as f32 * self.em_advance);
10825 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
10826
10827 let (column, x_overshoot_after_line_end) = if let Some(line) = self
10828 .line_layouts
10829 .get(row as usize - scroll_position.y as usize)
10830 {
10831 if let Some(ix) = line.index_for_x(x) {
10832 (ix as u32, px(0.))
10833 } else {
10834 (line.len as u32, px(0.).max(x - line.width))
10835 }
10836 } else {
10837 (0, x)
10838 };
10839
10840 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
10841 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
10842 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
10843
10844 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
10845 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
10846 PointForPosition {
10847 previous_valid,
10848 next_valid,
10849 exact_unclipped,
10850 column_overshoot_after_line_end,
10851 }
10852 }
10853}
10854
10855struct BlockLayout {
10856 id: BlockId,
10857 x_offset: Pixels,
10858 row: Option<DisplayRow>,
10859 element: AnyElement,
10860 available_space: Size<AvailableSpace>,
10861 style: BlockStyle,
10862 overlaps_gutter: bool,
10863 is_buffer_header: bool,
10864}
10865
10866pub fn layout_line(
10867 row: DisplayRow,
10868 snapshot: &EditorSnapshot,
10869 style: &EditorStyle,
10870 text_width: Pixels,
10871 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
10872 window: &mut Window,
10873 cx: &mut App,
10874) -> LineWithInvisibles {
10875 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
10876 LineWithInvisibles::from_chunks(
10877 chunks,
10878 style,
10879 MAX_LINE_LEN,
10880 1,
10881 &snapshot.mode,
10882 text_width,
10883 is_row_soft_wrapped,
10884 &[],
10885 window,
10886 cx,
10887 )
10888 .pop()
10889 .unwrap()
10890}
10891
10892#[derive(Debug)]
10893pub struct IndentGuideLayout {
10894 origin: gpui::Point<Pixels>,
10895 length: Pixels,
10896 single_indent_width: Pixels,
10897 depth: u32,
10898 active: bool,
10899 settings: IndentGuideSettings,
10900}
10901
10902pub struct CursorLayout {
10903 origin: gpui::Point<Pixels>,
10904 block_width: Pixels,
10905 line_height: Pixels,
10906 color: Hsla,
10907 shape: CursorShape,
10908 block_text: Option<ShapedLine>,
10909 cursor_name: Option<AnyElement>,
10910}
10911
10912#[derive(Debug)]
10913pub struct CursorName {
10914 string: SharedString,
10915 color: Hsla,
10916 is_top_row: bool,
10917}
10918
10919impl CursorLayout {
10920 pub fn new(
10921 origin: gpui::Point<Pixels>,
10922 block_width: Pixels,
10923 line_height: Pixels,
10924 color: Hsla,
10925 shape: CursorShape,
10926 block_text: Option<ShapedLine>,
10927 ) -> CursorLayout {
10928 CursorLayout {
10929 origin,
10930 block_width,
10931 line_height,
10932 color,
10933 shape,
10934 block_text,
10935 cursor_name: None,
10936 }
10937 }
10938
10939 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
10940 Bounds {
10941 origin: self.origin + origin,
10942 size: size(self.block_width, self.line_height),
10943 }
10944 }
10945
10946 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
10947 match self.shape {
10948 CursorShape::Bar => Bounds {
10949 origin: self.origin + origin,
10950 size: size(px(2.0), self.line_height),
10951 },
10952 CursorShape::Block | CursorShape::Hollow => Bounds {
10953 origin: self.origin + origin,
10954 size: size(self.block_width, self.line_height),
10955 },
10956 CursorShape::Underline => Bounds {
10957 origin: self.origin
10958 + origin
10959 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
10960 size: size(self.block_width, px(2.0)),
10961 },
10962 }
10963 }
10964
10965 pub fn layout(
10966 &mut self,
10967 origin: gpui::Point<Pixels>,
10968 cursor_name: Option<CursorName>,
10969 window: &mut Window,
10970 cx: &mut App,
10971 ) {
10972 if let Some(cursor_name) = cursor_name {
10973 let bounds = self.bounds(origin);
10974 let text_size = self.line_height / 1.5;
10975
10976 let name_origin = if cursor_name.is_top_row {
10977 point(bounds.right() - px(1.), bounds.top())
10978 } else {
10979 match self.shape {
10980 CursorShape::Bar => point(
10981 bounds.right() - px(2.),
10982 bounds.top() - text_size / 2. - px(1.),
10983 ),
10984 _ => point(
10985 bounds.right() - px(1.),
10986 bounds.top() - text_size / 2. - px(1.),
10987 ),
10988 }
10989 };
10990 let mut name_element = div()
10991 .bg(self.color)
10992 .text_size(text_size)
10993 .px_0p5()
10994 .line_height(text_size + px(2.))
10995 .text_color(cursor_name.color)
10996 .child(cursor_name.string)
10997 .into_any_element();
10998
10999 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11000
11001 self.cursor_name = Some(name_element);
11002 }
11003 }
11004
11005 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11006 let bounds = self.bounds(origin);
11007
11008 //Draw background or border quad
11009 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11010 outline(bounds, self.color, BorderStyle::Solid)
11011 } else {
11012 fill(bounds, self.color)
11013 };
11014
11015 if let Some(name) = &mut self.cursor_name {
11016 name.paint(window, cx);
11017 }
11018
11019 window.paint_quad(cursor);
11020
11021 if let Some(block_text) = &self.block_text {
11022 block_text
11023 .paint(self.origin + origin, self.line_height, window, cx)
11024 .log_err();
11025 }
11026 }
11027
11028 pub fn shape(&self) -> CursorShape {
11029 self.shape
11030 }
11031}
11032
11033#[derive(Debug)]
11034pub struct HighlightedRange {
11035 pub start_y: Pixels,
11036 pub line_height: Pixels,
11037 pub lines: Vec<HighlightedRangeLine>,
11038 pub color: Hsla,
11039 pub corner_radius: Pixels,
11040}
11041
11042#[derive(Debug)]
11043pub struct HighlightedRangeLine {
11044 pub start_x: Pixels,
11045 pub end_x: Pixels,
11046}
11047
11048impl HighlightedRange {
11049 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11050 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11051 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11052 self.paint_lines(
11053 self.start_y + self.line_height,
11054 &self.lines[1..],
11055 fill,
11056 bounds,
11057 window,
11058 );
11059 } else {
11060 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11061 }
11062 }
11063
11064 fn paint_lines(
11065 &self,
11066 start_y: Pixels,
11067 lines: &[HighlightedRangeLine],
11068 fill: bool,
11069 _bounds: Bounds<Pixels>,
11070 window: &mut Window,
11071 ) {
11072 if lines.is_empty() {
11073 return;
11074 }
11075
11076 let first_line = lines.first().unwrap();
11077 let last_line = lines.last().unwrap();
11078
11079 let first_top_left = point(first_line.start_x, start_y);
11080 let first_top_right = point(first_line.end_x, start_y);
11081
11082 let curve_height = point(Pixels::ZERO, self.corner_radius);
11083 let curve_width = |start_x: Pixels, end_x: Pixels| {
11084 let max = (end_x - start_x) / 2.;
11085 let width = if max < self.corner_radius {
11086 max
11087 } else {
11088 self.corner_radius
11089 };
11090
11091 point(width, Pixels::ZERO)
11092 };
11093
11094 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11095 let mut builder = if fill {
11096 gpui::PathBuilder::fill()
11097 } else {
11098 gpui::PathBuilder::stroke(px(1.))
11099 };
11100 builder.move_to(first_top_right - top_curve_width);
11101 builder.curve_to(first_top_right + curve_height, first_top_right);
11102
11103 let mut iter = lines.iter().enumerate().peekable();
11104 while let Some((ix, line)) = iter.next() {
11105 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
11106
11107 if let Some((_, next_line)) = iter.peek() {
11108 let next_top_right = point(next_line.end_x, bottom_right.y);
11109
11110 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
11111 Ordering::Equal => {
11112 builder.line_to(bottom_right);
11113 }
11114 Ordering::Less => {
11115 let curve_width = curve_width(next_top_right.x, bottom_right.x);
11116 builder.line_to(bottom_right - curve_height);
11117 if self.corner_radius > Pixels::ZERO {
11118 builder.curve_to(bottom_right - curve_width, bottom_right);
11119 }
11120 builder.line_to(next_top_right + curve_width);
11121 if self.corner_radius > Pixels::ZERO {
11122 builder.curve_to(next_top_right + curve_height, next_top_right);
11123 }
11124 }
11125 Ordering::Greater => {
11126 let curve_width = curve_width(bottom_right.x, next_top_right.x);
11127 builder.line_to(bottom_right - curve_height);
11128 if self.corner_radius > Pixels::ZERO {
11129 builder.curve_to(bottom_right + curve_width, bottom_right);
11130 }
11131 builder.line_to(next_top_right - curve_width);
11132 if self.corner_radius > Pixels::ZERO {
11133 builder.curve_to(next_top_right + curve_height, next_top_right);
11134 }
11135 }
11136 }
11137 } else {
11138 let curve_width = curve_width(line.start_x, line.end_x);
11139 builder.line_to(bottom_right - curve_height);
11140 if self.corner_radius > Pixels::ZERO {
11141 builder.curve_to(bottom_right - curve_width, bottom_right);
11142 }
11143
11144 let bottom_left = point(line.start_x, bottom_right.y);
11145 builder.line_to(bottom_left + curve_width);
11146 if self.corner_radius > Pixels::ZERO {
11147 builder.curve_to(bottom_left - curve_height, bottom_left);
11148 }
11149 }
11150 }
11151
11152 if first_line.start_x > last_line.start_x {
11153 let curve_width = curve_width(last_line.start_x, first_line.start_x);
11154 let second_top_left = point(last_line.start_x, start_y + self.line_height);
11155 builder.line_to(second_top_left + curve_height);
11156 if self.corner_radius > Pixels::ZERO {
11157 builder.curve_to(second_top_left + curve_width, second_top_left);
11158 }
11159 let first_bottom_left = point(first_line.start_x, second_top_left.y);
11160 builder.line_to(first_bottom_left - curve_width);
11161 if self.corner_radius > Pixels::ZERO {
11162 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
11163 }
11164 }
11165
11166 builder.line_to(first_top_left + curve_height);
11167 if self.corner_radius > Pixels::ZERO {
11168 builder.curve_to(first_top_left + top_curve_width, first_top_left);
11169 }
11170 builder.line_to(first_top_right - top_curve_width);
11171
11172 if let Ok(path) = builder.build() {
11173 window.paint_path(path, self.color);
11174 }
11175 }
11176}
11177
11178pub(crate) struct StickyHeader {
11179 pub item: language::OutlineItem<Anchor>,
11180 pub sticky_row: DisplayRow,
11181 pub start_point: Point,
11182 pub offset: ScrollOffset,
11183}
11184
11185enum CursorPopoverType {
11186 CodeContextMenu,
11187 EditPrediction,
11188}
11189
11190pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11191 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
11192}
11193
11194fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11195 (delta.pow(1.2) / 300.0).into()
11196}
11197
11198pub fn register_action<T: Action>(
11199 editor: &Entity<Editor>,
11200 window: &mut Window,
11201 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
11202) {
11203 let editor = editor.clone();
11204 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
11205 let action = action.downcast_ref().unwrap();
11206 if phase == DispatchPhase::Bubble {
11207 editor.update(cx, |editor, cx| {
11208 listener(editor, action, window, cx);
11209 })
11210 }
11211 })
11212}
11213
11214fn compute_auto_height_layout(
11215 editor: &mut Editor,
11216 min_lines: usize,
11217 max_lines: Option<usize>,
11218 max_line_number_width: Pixels,
11219 known_dimensions: Size<Option<Pixels>>,
11220 available_width: AvailableSpace,
11221 window: &mut Window,
11222 cx: &mut Context<Editor>,
11223) -> Option<Size<Pixels>> {
11224 let width = known_dimensions.width.or({
11225 if let AvailableSpace::Definite(available_width) = available_width {
11226 Some(available_width)
11227 } else {
11228 None
11229 }
11230 })?;
11231 if let Some(height) = known_dimensions.height {
11232 return Some(size(width, height));
11233 }
11234
11235 let style = editor.style.as_ref().unwrap();
11236 let font_id = window.text_system().resolve_font(&style.text.font());
11237 let font_size = style.text.font_size.to_pixels(window.rem_size());
11238 let line_height = style.text.line_height_in_pixels(window.rem_size());
11239 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
11240
11241 let mut snapshot = editor.snapshot(window, cx);
11242 let gutter_dimensions = snapshot
11243 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
11244 .or_else(|| {
11245 editor
11246 .offset_content
11247 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
11248 })
11249 .unwrap_or_default();
11250
11251 editor.gutter_dimensions = gutter_dimensions;
11252 let text_width = width - gutter_dimensions.width;
11253 let overscroll = size(em_width, px(0.));
11254
11255 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
11256 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
11257 && editor.set_wrap_width(Some(editor_width), cx)
11258 {
11259 snapshot = editor.snapshot(window, cx);
11260 }
11261
11262 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
11263
11264 let min_height = line_height * min_lines as f32;
11265 let content_height = scroll_height.max(min_height);
11266
11267 let final_height = if let Some(max_lines) = max_lines {
11268 let max_height = line_height * max_lines as f32;
11269 content_height.min(max_height)
11270 } else {
11271 content_height
11272 };
11273
11274 Some(size(width, final_height))
11275}
11276
11277#[cfg(test)]
11278mod tests {
11279 use super::*;
11280 use crate::{
11281 Editor, MultiBuffer, SelectionEffects,
11282 display_map::{BlockPlacement, BlockProperties},
11283 editor_tests::{init_test, update_test_language_settings},
11284 };
11285 use gpui::{TestAppContext, VisualTestContext};
11286 use language::language_settings;
11287 use log::info;
11288 use std::num::NonZeroU32;
11289 use util::test::sample_text;
11290
11291 #[gpui::test]
11292 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
11293 init_test(cx, |_| {});
11294
11295 let window = cx.add_window(|window, cx| {
11296 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11297 let mut editor = Editor::new(
11298 EditorMode::AutoHeight {
11299 min_lines: 1,
11300 max_lines: None,
11301 },
11302 buffer,
11303 None,
11304 window,
11305 cx,
11306 );
11307 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11308 editor
11309 });
11310 let cx = &mut VisualTestContext::from_window(*window, cx);
11311 let editor = window.root(cx).unwrap();
11312 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11313
11314 for x in 1..=100 {
11315 let (_, state) = cx.draw(
11316 Default::default(),
11317 size(px(200. + 0.13 * x as f32), px(500.)),
11318 |_, _| EditorElement::new(&editor, style.clone()),
11319 );
11320
11321 assert!(
11322 state.position_map.scroll_max.x == 0.,
11323 "Soft wrapped editor should have no horizontal scrolling!"
11324 );
11325 }
11326 }
11327
11328 #[gpui::test]
11329 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
11330 init_test(cx, |_| {});
11331
11332 let window = cx.add_window(|window, cx| {
11333 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11334 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
11335 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11336 editor
11337 });
11338 let cx = &mut VisualTestContext::from_window(*window, cx);
11339 let editor = window.root(cx).unwrap();
11340 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11341
11342 for x in 1..=100 {
11343 let (_, state) = cx.draw(
11344 Default::default(),
11345 size(px(200. + 0.13 * x as f32), px(500.)),
11346 |_, _| EditorElement::new(&editor, style.clone()),
11347 );
11348
11349 assert!(
11350 state.position_map.scroll_max.x == 0.,
11351 "Soft wrapped editor should have no horizontal scrolling!"
11352 );
11353 }
11354 }
11355
11356 #[gpui::test]
11357 fn test_shape_line_numbers(cx: &mut TestAppContext) {
11358 init_test(cx, |_| {});
11359 let window = cx.add_window(|window, cx| {
11360 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
11361 Editor::new(EditorMode::full(), buffer, None, window, cx)
11362 });
11363
11364 let editor = window.root(cx).unwrap();
11365 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
11366 let line_height = window
11367 .update(cx, |_, window, _| {
11368 style.text.line_height_in_pixels(window.rem_size())
11369 })
11370 .unwrap();
11371 let element = EditorElement::new(&editor, style);
11372 let snapshot = window
11373 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
11374 .unwrap();
11375
11376 let layouts = cx
11377 .update_window(*window, |_, window, cx| {
11378 element.layout_line_numbers(
11379 None,
11380 GutterDimensions {
11381 left_padding: Pixels::ZERO,
11382 right_padding: Pixels::ZERO,
11383 width: px(30.0),
11384 margin: Pixels::ZERO,
11385 git_blame_entries_width: None,
11386 },
11387 line_height,
11388 gpui::Point::default(),
11389 DisplayRow(0)..DisplayRow(6),
11390 &(0..6)
11391 .map(|row| RowInfo {
11392 buffer_row: Some(row),
11393 ..Default::default()
11394 })
11395 .collect::<Vec<_>>(),
11396 &BTreeMap::default(),
11397 Some(DisplayPoint::new(DisplayRow(0), 0)),
11398 &snapshot,
11399 window,
11400 cx,
11401 )
11402 })
11403 .unwrap();
11404 assert_eq!(layouts.len(), 6);
11405
11406 let relative_rows = window
11407 .update(cx, |editor, window, cx| {
11408 let snapshot = editor.snapshot(window, cx);
11409 element.calculate_relative_line_numbers(
11410 &snapshot,
11411 &(DisplayRow(0)..DisplayRow(6)),
11412 Some(DisplayRow(3)),
11413 false,
11414 )
11415 })
11416 .unwrap();
11417 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11418 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11419 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11420 // current line has no relative number
11421 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11422 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11423
11424 // works if cursor is before screen
11425 let relative_rows = window
11426 .update(cx, |editor, window, cx| {
11427 let snapshot = editor.snapshot(window, cx);
11428 element.calculate_relative_line_numbers(
11429 &snapshot,
11430 &(DisplayRow(3)..DisplayRow(6)),
11431 Some(DisplayRow(1)),
11432 false,
11433 )
11434 })
11435 .unwrap();
11436 assert_eq!(relative_rows.len(), 3);
11437 assert_eq!(relative_rows[&DisplayRow(3)], 2);
11438 assert_eq!(relative_rows[&DisplayRow(4)], 3);
11439 assert_eq!(relative_rows[&DisplayRow(5)], 4);
11440
11441 // works if cursor is after screen
11442 let relative_rows = window
11443 .update(cx, |editor, window, cx| {
11444 let snapshot = editor.snapshot(window, cx);
11445 element.calculate_relative_line_numbers(
11446 &snapshot,
11447 &(DisplayRow(0)..DisplayRow(3)),
11448 Some(DisplayRow(6)),
11449 false,
11450 )
11451 })
11452 .unwrap();
11453 assert_eq!(relative_rows.len(), 3);
11454 assert_eq!(relative_rows[&DisplayRow(0)], 5);
11455 assert_eq!(relative_rows[&DisplayRow(1)], 4);
11456 assert_eq!(relative_rows[&DisplayRow(2)], 3);
11457
11458 const DELETED_LINE: u32 = 3;
11459 let layouts = cx
11460 .update_window(*window, |_, window, cx| {
11461 element.layout_line_numbers(
11462 None,
11463 GutterDimensions {
11464 left_padding: Pixels::ZERO,
11465 right_padding: Pixels::ZERO,
11466 width: px(30.0),
11467 margin: Pixels::ZERO,
11468 git_blame_entries_width: None,
11469 },
11470 line_height,
11471 gpui::Point::default(),
11472 DisplayRow(0)..DisplayRow(6),
11473 &(0..6)
11474 .map(|row| RowInfo {
11475 buffer_row: Some(row),
11476 diff_status: (row == DELETED_LINE).then(|| {
11477 DiffHunkStatus::deleted(
11478 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
11479 )
11480 }),
11481 ..Default::default()
11482 })
11483 .collect::<Vec<_>>(),
11484 &BTreeMap::default(),
11485 Some(DisplayPoint::new(DisplayRow(0), 0)),
11486 &snapshot,
11487 window,
11488 cx,
11489 )
11490 })
11491 .unwrap();
11492 assert_eq!(layouts.len(), 5,);
11493 assert!(
11494 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
11495 "Deleted line should not have a line number"
11496 );
11497 }
11498
11499 #[gpui::test]
11500 fn test_shape_line_numbers_wrapping(cx: &mut TestAppContext) {
11501 init_test(cx, |_| {});
11502 let window = cx.add_window(|window, cx| {
11503 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
11504 Editor::new(EditorMode::full(), buffer, None, window, cx)
11505 });
11506
11507 update_test_language_settings(cx, |s| {
11508 s.defaults.preferred_line_length = Some(5_u32);
11509 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
11510 });
11511
11512 let editor = window.root(cx).unwrap();
11513 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
11514 let line_height = window
11515 .update(cx, |_, window, _| {
11516 style.text.line_height_in_pixels(window.rem_size())
11517 })
11518 .unwrap();
11519 let element = EditorElement::new(&editor, style);
11520 let snapshot = window
11521 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
11522 .unwrap();
11523
11524 let layouts = cx
11525 .update_window(*window, |_, window, cx| {
11526 element.layout_line_numbers(
11527 None,
11528 GutterDimensions {
11529 left_padding: Pixels::ZERO,
11530 right_padding: Pixels::ZERO,
11531 width: px(30.0),
11532 margin: Pixels::ZERO,
11533 git_blame_entries_width: None,
11534 },
11535 line_height,
11536 gpui::Point::default(),
11537 DisplayRow(0)..DisplayRow(6),
11538 &(0..6)
11539 .map(|row| RowInfo {
11540 buffer_row: Some(row),
11541 ..Default::default()
11542 })
11543 .collect::<Vec<_>>(),
11544 &BTreeMap::default(),
11545 Some(DisplayPoint::new(DisplayRow(0), 0)),
11546 &snapshot,
11547 window,
11548 cx,
11549 )
11550 })
11551 .unwrap();
11552 assert_eq!(layouts.len(), 3);
11553
11554 let relative_rows = window
11555 .update(cx, |editor, window, cx| {
11556 let snapshot = editor.snapshot(window, cx);
11557 element.calculate_relative_line_numbers(
11558 &snapshot,
11559 &(DisplayRow(0)..DisplayRow(6)),
11560 Some(DisplayRow(3)),
11561 true,
11562 )
11563 })
11564 .unwrap();
11565
11566 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11567 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11568 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11569 // current line has no relative number
11570 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11571 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11572
11573 let layouts = cx
11574 .update_window(*window, |_, window, cx| {
11575 element.layout_line_numbers(
11576 None,
11577 GutterDimensions {
11578 left_padding: Pixels::ZERO,
11579 right_padding: Pixels::ZERO,
11580 width: px(30.0),
11581 margin: Pixels::ZERO,
11582 git_blame_entries_width: None,
11583 },
11584 line_height,
11585 gpui::Point::default(),
11586 DisplayRow(0)..DisplayRow(6),
11587 &(0..6)
11588 .map(|row| RowInfo {
11589 buffer_row: Some(row),
11590 diff_status: Some(DiffHunkStatus::deleted(
11591 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
11592 )),
11593 ..Default::default()
11594 })
11595 .collect::<Vec<_>>(),
11596 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
11597 Some(DisplayPoint::new(DisplayRow(0), 0)),
11598 &snapshot,
11599 window,
11600 cx,
11601 )
11602 })
11603 .unwrap();
11604 assert!(
11605 layouts.is_empty(),
11606 "Deleted lines should have no line number"
11607 );
11608
11609 let relative_rows = window
11610 .update(cx, |editor, window, cx| {
11611 let snapshot = editor.snapshot(window, cx);
11612 element.calculate_relative_line_numbers(
11613 &snapshot,
11614 &(DisplayRow(0)..DisplayRow(6)),
11615 Some(DisplayRow(3)),
11616 true,
11617 )
11618 })
11619 .unwrap();
11620
11621 // Deleted lines should still have relative numbers
11622 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11623 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11624 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11625 // current line, even if deleted, has no relative number
11626 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11627 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11628 }
11629
11630 #[gpui::test]
11631 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
11632 init_test(cx, |_| {});
11633
11634 let window = cx.add_window(|window, cx| {
11635 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
11636 Editor::new(EditorMode::full(), buffer, None, window, cx)
11637 });
11638 let cx = &mut VisualTestContext::from_window(*window, cx);
11639 let editor = window.root(cx).unwrap();
11640 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11641
11642 window
11643 .update(cx, |editor, window, cx| {
11644 editor.cursor_shape = CursorShape::Block;
11645 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
11646 s.select_ranges([
11647 Point::new(0, 0)..Point::new(1, 0),
11648 Point::new(3, 2)..Point::new(3, 3),
11649 Point::new(5, 6)..Point::new(6, 0),
11650 ]);
11651 });
11652 })
11653 .unwrap();
11654
11655 let (_, state) = cx.draw(
11656 point(px(500.), px(500.)),
11657 size(px(500.), px(500.)),
11658 |_, _| EditorElement::new(&editor, style),
11659 );
11660
11661 assert_eq!(state.selections.len(), 1);
11662 let local_selections = &state.selections[0].1;
11663 assert_eq!(local_selections.len(), 3);
11664 // moves cursor back one line
11665 assert_eq!(
11666 local_selections[0].head,
11667 DisplayPoint::new(DisplayRow(0), 6)
11668 );
11669 assert_eq!(
11670 local_selections[0].range,
11671 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
11672 );
11673
11674 // moves cursor back one column
11675 assert_eq!(
11676 local_selections[1].range,
11677 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
11678 );
11679 assert_eq!(
11680 local_selections[1].head,
11681 DisplayPoint::new(DisplayRow(3), 2)
11682 );
11683
11684 // leaves cursor on the max point
11685 assert_eq!(
11686 local_selections[2].range,
11687 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
11688 );
11689 assert_eq!(
11690 local_selections[2].head,
11691 DisplayPoint::new(DisplayRow(6), 0)
11692 );
11693
11694 // active lines does not include 1 (even though the range of the selection does)
11695 assert_eq!(
11696 state.active_rows.keys().cloned().collect::<Vec<_>>(),
11697 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
11698 );
11699 }
11700
11701 #[gpui::test]
11702 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
11703 init_test(cx, |_| {});
11704
11705 let window = cx.add_window(|window, cx| {
11706 let buffer = MultiBuffer::build_simple("", cx);
11707 Editor::new(EditorMode::full(), buffer, None, window, cx)
11708 });
11709 let cx = &mut VisualTestContext::from_window(*window, cx);
11710 let editor = window.root(cx).unwrap();
11711 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11712 window
11713 .update(cx, |editor, window, cx| {
11714 editor.set_placeholder_text("hello", window, cx);
11715 editor.insert_blocks(
11716 [BlockProperties {
11717 style: BlockStyle::Fixed,
11718 placement: BlockPlacement::Above(Anchor::min()),
11719 height: Some(3),
11720 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
11721 priority: 0,
11722 }],
11723 None,
11724 cx,
11725 );
11726
11727 // Blur the editor so that it displays placeholder text.
11728 window.blur();
11729 })
11730 .unwrap();
11731
11732 let (_, state) = cx.draw(
11733 point(px(500.), px(500.)),
11734 size(px(500.), px(500.)),
11735 |_, _| EditorElement::new(&editor, style),
11736 );
11737 assert_eq!(state.position_map.line_layouts.len(), 4);
11738 assert_eq!(state.line_numbers.len(), 1);
11739 assert_eq!(
11740 state
11741 .line_numbers
11742 .get(&MultiBufferRow(0))
11743 .map(|line_number| line_number
11744 .segments
11745 .first()
11746 .unwrap()
11747 .shaped_line
11748 .text
11749 .as_ref()),
11750 Some("1")
11751 );
11752 }
11753
11754 #[gpui::test]
11755 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
11756 const TAB_SIZE: u32 = 4;
11757
11758 let input_text = "\t \t|\t| a b";
11759 let expected_invisibles = vec![
11760 Invisible::Tab {
11761 line_start_offset: 0,
11762 line_end_offset: TAB_SIZE as usize,
11763 },
11764 Invisible::Whitespace {
11765 line_offset: TAB_SIZE as usize,
11766 },
11767 Invisible::Tab {
11768 line_start_offset: TAB_SIZE as usize + 1,
11769 line_end_offset: TAB_SIZE as usize * 2,
11770 },
11771 Invisible::Tab {
11772 line_start_offset: TAB_SIZE as usize * 2 + 1,
11773 line_end_offset: TAB_SIZE as usize * 3,
11774 },
11775 Invisible::Whitespace {
11776 line_offset: TAB_SIZE as usize * 3 + 1,
11777 },
11778 Invisible::Whitespace {
11779 line_offset: TAB_SIZE as usize * 3 + 3,
11780 },
11781 ];
11782 assert_eq!(
11783 expected_invisibles.len(),
11784 input_text
11785 .chars()
11786 .filter(|initial_char| initial_char.is_whitespace())
11787 .count(),
11788 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
11789 );
11790
11791 for show_line_numbers in [true, false] {
11792 init_test(cx, |s| {
11793 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
11794 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
11795 });
11796
11797 let actual_invisibles = collect_invisibles_from_new_editor(
11798 cx,
11799 EditorMode::full(),
11800 input_text,
11801 px(500.0),
11802 show_line_numbers,
11803 );
11804
11805 assert_eq!(expected_invisibles, actual_invisibles);
11806 }
11807 }
11808
11809 #[gpui::test]
11810 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
11811 init_test(cx, |s| {
11812 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
11813 s.defaults.tab_size = NonZeroU32::new(4);
11814 });
11815
11816 for editor_mode_without_invisibles in [
11817 EditorMode::SingleLine,
11818 EditorMode::AutoHeight {
11819 min_lines: 1,
11820 max_lines: Some(100),
11821 },
11822 ] {
11823 for show_line_numbers in [true, false] {
11824 let invisibles = collect_invisibles_from_new_editor(
11825 cx,
11826 editor_mode_without_invisibles.clone(),
11827 "\t\t\t| | a b",
11828 px(500.0),
11829 show_line_numbers,
11830 );
11831 assert!(
11832 invisibles.is_empty(),
11833 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
11834 );
11835 }
11836 }
11837 }
11838
11839 #[gpui::test]
11840 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
11841 let tab_size = 4;
11842 let input_text = "a\tbcd ".repeat(9);
11843 let repeated_invisibles = [
11844 Invisible::Tab {
11845 line_start_offset: 1,
11846 line_end_offset: tab_size as usize,
11847 },
11848 Invisible::Whitespace {
11849 line_offset: tab_size as usize + 3,
11850 },
11851 Invisible::Whitespace {
11852 line_offset: tab_size as usize + 4,
11853 },
11854 Invisible::Whitespace {
11855 line_offset: tab_size as usize + 5,
11856 },
11857 Invisible::Whitespace {
11858 line_offset: tab_size as usize + 6,
11859 },
11860 Invisible::Whitespace {
11861 line_offset: tab_size as usize + 7,
11862 },
11863 ];
11864 let expected_invisibles = std::iter::once(repeated_invisibles)
11865 .cycle()
11866 .take(9)
11867 .flatten()
11868 .collect::<Vec<_>>();
11869 assert_eq!(
11870 expected_invisibles.len(),
11871 input_text
11872 .chars()
11873 .filter(|initial_char| initial_char.is_whitespace())
11874 .count(),
11875 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
11876 );
11877 info!("Expected invisibles: {expected_invisibles:?}");
11878
11879 init_test(cx, |_| {});
11880
11881 // Put the same string with repeating whitespace pattern into editors of various size,
11882 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
11883 let resize_step = 10.0;
11884 let mut editor_width = 200.0;
11885 while editor_width <= 1000.0 {
11886 for show_line_numbers in [true, false] {
11887 update_test_language_settings(cx, |s| {
11888 s.defaults.tab_size = NonZeroU32::new(tab_size);
11889 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
11890 s.defaults.preferred_line_length = Some(editor_width as u32);
11891 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
11892 });
11893
11894 let actual_invisibles = collect_invisibles_from_new_editor(
11895 cx,
11896 EditorMode::full(),
11897 &input_text,
11898 px(editor_width),
11899 show_line_numbers,
11900 );
11901
11902 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
11903 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
11904 let mut i = 0;
11905 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
11906 i = actual_index;
11907 match expected_invisibles.get(i) {
11908 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
11909 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
11910 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
11911 _ => {
11912 panic!(
11913 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
11914 )
11915 }
11916 },
11917 None => {
11918 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
11919 }
11920 }
11921 }
11922 let missing_expected_invisibles = &expected_invisibles[i + 1..];
11923 assert!(
11924 missing_expected_invisibles.is_empty(),
11925 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
11926 );
11927
11928 editor_width += resize_step;
11929 }
11930 }
11931 }
11932
11933 fn collect_invisibles_from_new_editor(
11934 cx: &mut TestAppContext,
11935 editor_mode: EditorMode,
11936 input_text: &str,
11937 editor_width: Pixels,
11938 show_line_numbers: bool,
11939 ) -> Vec<Invisible> {
11940 info!(
11941 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
11942 f32::from(editor_width)
11943 );
11944 let window = cx.add_window(|window, cx| {
11945 let buffer = MultiBuffer::build_simple(input_text, cx);
11946 Editor::new(editor_mode, buffer, None, window, cx)
11947 });
11948 let cx = &mut VisualTestContext::from_window(*window, cx);
11949 let editor = window.root(cx).unwrap();
11950
11951 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11952 window
11953 .update(cx, |editor, _, cx| {
11954 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11955 editor.set_wrap_width(Some(editor_width), cx);
11956 editor.set_show_line_numbers(show_line_numbers, cx);
11957 })
11958 .unwrap();
11959 let (_, state) = cx.draw(
11960 point(px(500.), px(500.)),
11961 size(px(500.), px(500.)),
11962 |_, _| EditorElement::new(&editor, style),
11963 );
11964 state
11965 .position_map
11966 .line_layouts
11967 .iter()
11968 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
11969 .cloned()
11970 .collect()
11971 }
11972
11973 #[gpui::test]
11974 fn test_merge_overlapping_ranges() {
11975 let base_bg = Hsla::white();
11976 let color1 = Hsla {
11977 h: 0.0,
11978 s: 0.5,
11979 l: 0.5,
11980 a: 0.5,
11981 };
11982 let color2 = Hsla {
11983 h: 120.0,
11984 s: 0.5,
11985 l: 0.5,
11986 a: 0.5,
11987 };
11988
11989 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
11990 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
11991 v.iter()
11992 .map(|(r, _)| (r.start.column(), r.end.column()))
11993 .collect()
11994 };
11995
11996 // Test overlapping ranges blend colors
11997 let overlapping = vec![
11998 (display_point(5)..display_point(15), color1),
11999 (display_point(10)..display_point(20), color2),
12000 ];
12001 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12002 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12003
12004 // Test middle segment should have blended color
12005 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12006 assert_eq!(result[1].1, blended);
12007
12008 // Test adjacent same-color ranges merge
12009 let adjacent_same = vec![
12010 (display_point(5)..display_point(10), color1),
12011 (display_point(10)..display_point(15), color1),
12012 ];
12013 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
12014 assert_eq!(cols(&result), vec![(5, 15)]);
12015
12016 // Test contained range splits
12017 let contained = vec![
12018 (display_point(5)..display_point(20), color1),
12019 (display_point(10)..display_point(15), color2),
12020 ];
12021 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
12022 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12023
12024 // Test multiple overlaps split at every boundary
12025 let color3 = Hsla {
12026 h: 240.0,
12027 s: 0.5,
12028 l: 0.5,
12029 a: 0.5,
12030 };
12031 let complex = vec![
12032 (display_point(5)..display_point(12), color1),
12033 (display_point(8)..display_point(16), color2),
12034 (display_point(10)..display_point(14), color3),
12035 ];
12036 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
12037 assert_eq!(
12038 cols(&result),
12039 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
12040 );
12041 }
12042
12043 #[gpui::test]
12044 fn test_bg_segments_per_row() {
12045 let base_bg = Hsla::white();
12046
12047 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
12048 {
12049 let selection_color = Hsla {
12050 h: 200.0,
12051 s: 0.5,
12052 l: 0.5,
12053 a: 0.5,
12054 };
12055 let player_color = PlayerColor {
12056 cursor: selection_color,
12057 background: selection_color,
12058 selection: selection_color,
12059 };
12060
12061 let spanning_selection = SelectionLayout {
12062 head: DisplayPoint::new(DisplayRow(3), 7),
12063 cursor_shape: CursorShape::Bar,
12064 is_newest: true,
12065 is_local: true,
12066 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
12067 active_rows: DisplayRow(1)..DisplayRow(4),
12068 user_name: None,
12069 };
12070
12071 let selections = vec![(player_color, vec![spanning_selection])];
12072 let result = EditorElement::bg_segments_per_row(
12073 DisplayRow(0)..DisplayRow(5),
12074 &selections,
12075 &[],
12076 base_bg,
12077 );
12078
12079 assert_eq!(result.len(), 5);
12080 assert!(result[0].is_empty());
12081 assert_eq!(result[1].len(), 1);
12082 assert_eq!(result[2].len(), 1);
12083 assert_eq!(result[3].len(), 1);
12084 assert!(result[4].is_empty());
12085
12086 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12087 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12088 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12089 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12090 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12091 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12092 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
12093 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
12094 }
12095
12096 // Case B: selection ends exactly at the start of row 3, excluding row 3
12097 {
12098 let selection_color = Hsla {
12099 h: 120.0,
12100 s: 0.5,
12101 l: 0.5,
12102 a: 0.5,
12103 };
12104 let player_color = PlayerColor {
12105 cursor: selection_color,
12106 background: selection_color,
12107 selection: selection_color,
12108 };
12109
12110 let selection = SelectionLayout {
12111 head: DisplayPoint::new(DisplayRow(2), 0),
12112 cursor_shape: CursorShape::Bar,
12113 is_newest: true,
12114 is_local: true,
12115 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
12116 active_rows: DisplayRow(1)..DisplayRow(3),
12117 user_name: None,
12118 };
12119
12120 let selections = vec![(player_color, vec![selection])];
12121 let result = EditorElement::bg_segments_per_row(
12122 DisplayRow(0)..DisplayRow(4),
12123 &selections,
12124 &[],
12125 base_bg,
12126 );
12127
12128 assert_eq!(result.len(), 4);
12129 assert!(result[0].is_empty());
12130 assert_eq!(result[1].len(), 1);
12131 assert_eq!(result[2].len(), 1);
12132 assert!(result[3].is_empty());
12133
12134 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12135 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12136 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12137 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12138 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12139 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12140 }
12141 }
12142
12143 #[cfg(test)]
12144 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
12145 TextRun {
12146 len,
12147 color,
12148 ..Default::default()
12149 }
12150 }
12151
12152 #[gpui::test]
12153 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
12154 init_test(cx, |_| {});
12155
12156 let dx = |start: u32, end: u32| {
12157 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
12158 };
12159
12160 let text_color = Hsla {
12161 h: 210.0,
12162 s: 0.1,
12163 l: 0.4,
12164 a: 1.0,
12165 };
12166 let bg_1 = Hsla {
12167 h: 30.0,
12168 s: 0.6,
12169 l: 0.8,
12170 a: 1.0,
12171 };
12172 let bg_2 = Hsla {
12173 h: 200.0,
12174 s: 0.6,
12175 l: 0.2,
12176 a: 1.0,
12177 };
12178 let min_contrast = 45.0;
12179 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
12180 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
12181
12182 // Case A: single run; disjoint segments inside the run
12183 {
12184 let runs = vec![generate_test_run(20, text_color)];
12185 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
12186 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12187 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
12188 assert_eq!(
12189 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12190 vec![5, 5, 2, 4, 4]
12191 );
12192 assert_eq!(out[0].color, text_color);
12193 assert_eq!(out[1].color, adjusted_bg1);
12194 assert_eq!(out[2].color, text_color);
12195 assert_eq!(out[3].color, adjusted_bg2);
12196 assert_eq!(out[4].color, text_color);
12197 }
12198
12199 // Case B: multiple runs; segment extends to end of line (u32::MAX)
12200 {
12201 let runs = vec![
12202 generate_test_run(8, text_color),
12203 generate_test_run(7, text_color),
12204 ];
12205 let segs = vec![(dx(6, u32::MAX), bg_1)];
12206 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12207 // Expected slices across runs: [0,6) [6,8) | [0,7)
12208 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
12209 assert_eq!(out[0].color, text_color);
12210 assert_eq!(out[1].color, adjusted_bg1);
12211 assert_eq!(out[2].color, adjusted_bg1);
12212 }
12213
12214 // Case C: multi-byte characters
12215 {
12216 // for text: "Hello π δΈη!"
12217 let runs = vec![
12218 generate_test_run(5, text_color), // "Hello"
12219 generate_test_run(6, text_color), // " π "
12220 generate_test_run(6, text_color), // "δΈη"
12221 generate_test_run(1, text_color), // "!"
12222 ];
12223 // selecting "π δΈ"
12224 let segs = vec![(dx(6, 14), bg_1)];
12225 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12226 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
12227 assert_eq!(
12228 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12229 vec![5, 1, 5, 3, 3, 1]
12230 );
12231 assert_eq!(out[0].color, text_color); // "Hello"
12232 assert_eq!(out[2].color, adjusted_bg1); // "π "
12233 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
12234 assert_eq!(out[4].color, text_color); // "η"
12235 assert_eq!(out[5].color, text_color); // "!"
12236 }
12237
12238 // Case D: split multiple consecutive text runs with segments
12239 {
12240 let segs = vec![
12241 (dx(2, 4), bg_1), // selecting "cd"
12242 (dx(4, 8), bg_2), // selecting "efgh"
12243 (dx(9, 11), bg_1), // selecting "jk"
12244 (dx(12, 16), bg_2), // selecting "mnop"
12245 (dx(18, 19), bg_1), // selecting "s"
12246 ];
12247
12248 // for text: "abcdef"
12249 let runs = vec![
12250 generate_test_run(2, text_color), // ab
12251 generate_test_run(4, text_color), // cdef
12252 ];
12253 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12254 // new splits "ab", "cd", "ef"
12255 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
12256 assert_eq!(out[0].color, text_color);
12257 assert_eq!(out[1].color, adjusted_bg1);
12258 assert_eq!(out[2].color, adjusted_bg2);
12259
12260 // for text: "ghijklmn"
12261 let runs = vec![
12262 generate_test_run(3, text_color), // ghi
12263 generate_test_run(2, text_color), // jk
12264 generate_test_run(3, text_color), // lmn
12265 ];
12266 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
12267 // new splits "gh", "i", "jk", "l", "mn"
12268 assert_eq!(
12269 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12270 vec![2, 1, 2, 1, 2]
12271 );
12272 assert_eq!(out[0].color, adjusted_bg2);
12273 assert_eq!(out[1].color, text_color);
12274 assert_eq!(out[2].color, adjusted_bg1);
12275 assert_eq!(out[3].color, text_color);
12276 assert_eq!(out[4].color, adjusted_bg2);
12277
12278 // for text: "opqrs"
12279 let runs = vec![
12280 generate_test_run(1, text_color), // o
12281 generate_test_run(4, text_color), // pqrs
12282 ];
12283 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
12284 // new splits "o", "p", "qr", "s"
12285 assert_eq!(
12286 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12287 vec![1, 1, 2, 1]
12288 );
12289 assert_eq!(out[0].color, adjusted_bg2);
12290 assert_eq!(out[1].color, adjusted_bg2);
12291 assert_eq!(out[2].color, text_color);
12292 assert_eq!(out[3].color, adjusted_bg1);
12293 }
12294 }
12295}