1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::{CommitDetails, GitBlame},
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 items::BufferSearchHighlights,
16 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
17 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
18 AcceptEditPrediction, BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint,
19 DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
20 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
21 GoToPrevHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
22 InlineCompletion, JumpData, LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point,
23 RevertSelectedHunks, RowExt, RowRangeExt, SelectPhase, Selection, SoftWrap,
24 StickyHeaderExcerpt, ToPoint, ToggleFold, CURSORS_VISIBLE_FOR,
25 EDIT_PREDICTION_REQUIRES_MODIFIER_KEY_CONTEXT, FILE_HEADER_HEIGHT,
26 GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
27};
28use buffer_diff::{DiffHunkSecondaryStatus, DiffHunkStatus};
29use client::ParticipantIndex;
30use collections::{BTreeMap, HashMap, HashSet};
31use file_icons::FileIcons;
32use git::{blame::BlameEntry, Oid};
33use gpui::{
34 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, pattern_slash,
35 point, px, quad, relative, size, svg, transparent_black, Action, AnyElement, App,
36 AvailableSpace, Axis, Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners,
37 CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _,
38 FontId, GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement,
39 KeyBindingContextPredicate, Keystroke, Length, ModifiersChangedEvent, MouseButton,
40 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
41 ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled,
42 Subscription, TextRun, TextStyleRefinement, WeakEntity, Window,
43};
44use itertools::Itertools;
45use language::{
46 language_settings::{
47 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
48 ShowWhitespaceSetting,
49 },
50 ChunkRendererContext,
51};
52use lsp::DiagnosticSeverity;
53use multi_buffer::{
54 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
55 RowInfo, ToOffset,
56};
57use project::project_settings::{GitGutterSetting, ProjectSettings};
58use settings::{KeyBindingValidator, KeyBindingValidatorRegistration, Settings};
59use smallvec::{smallvec, SmallVec};
60use std::{
61 any::TypeId,
62 borrow::Cow,
63 cmp::{self, Ordering},
64 fmt::{self, Write},
65 iter, mem,
66 ops::{Deref, Range},
67 rc::Rc,
68 sync::Arc,
69};
70use sum_tree::Bias;
71use text::BufferId;
72use theme::{ActiveTheme, Appearance, PlayerColor};
73use ui::{
74 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
75 POPOVER_Y_PADDING,
76};
77use unicode_segmentation::UnicodeSegmentation;
78use util::{markdown::MarkdownString, RangeExt, ResultExt};
79use workspace::{item::Item, notifications::NotifyTaskExt, Workspace};
80
81const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
82
83#[derive(Debug, Clone, PartialEq, Eq)]
84enum DisplayDiffHunk {
85 Folded {
86 display_row: DisplayRow,
87 },
88 Unfolded {
89 diff_base_byte_range: Range<usize>,
90 display_row_range: Range<DisplayRow>,
91 multi_buffer_range: Range<Anchor>,
92 status: DiffHunkStatus,
93 },
94}
95
96struct SelectionLayout {
97 head: DisplayPoint,
98 cursor_shape: CursorShape,
99 is_newest: bool,
100 is_local: bool,
101 range: Range<DisplayPoint>,
102 active_rows: Range<DisplayRow>,
103 user_name: Option<SharedString>,
104}
105
106impl SelectionLayout {
107 fn new<T: ToPoint + ToDisplayPoint + Clone>(
108 selection: Selection<T>,
109 line_mode: bool,
110 cursor_shape: CursorShape,
111 map: &DisplaySnapshot,
112 is_newest: bool,
113 is_local: bool,
114 user_name: Option<SharedString>,
115 ) -> Self {
116 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
117 let display_selection = point_selection.map(|p| p.to_display_point(map));
118 let mut range = display_selection.range();
119 let mut head = display_selection.head();
120 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
121 ..map.next_line_boundary(point_selection.end).1.row();
122
123 // vim visual line mode
124 if line_mode {
125 let point_range = map.expand_to_line(point_selection.range());
126 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
127 }
128
129 // any vim visual mode (including line mode)
130 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
131 && !range.is_empty()
132 && !selection.reversed
133 {
134 if head.column() > 0 {
135 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
136 } else if head.row().0 > 0 && head != map.max_point() {
137 head = map.clip_point(
138 DisplayPoint::new(
139 head.row().previous_row(),
140 map.line_len(head.row().previous_row()),
141 ),
142 Bias::Left,
143 );
144 // updating range.end is a no-op unless you're cursor is
145 // on the newline containing a multi-buffer divider
146 // in which case the clip_point may have moved the head up
147 // an additional row.
148 range.end = DisplayPoint::new(head.row().next_row(), 0);
149 active_rows.end = head.row();
150 }
151 }
152
153 Self {
154 head,
155 cursor_shape,
156 is_newest,
157 is_local,
158 range,
159 active_rows,
160 user_name,
161 }
162 }
163}
164
165pub struct EditorElement {
166 editor: Entity<Editor>,
167 style: EditorStyle,
168}
169
170type DisplayRowDelta = u32;
171
172impl EditorElement {
173 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
174
175 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
176 Self {
177 editor: editor.clone(),
178 style,
179 }
180 }
181
182 fn register_actions(&self, window: &mut Window, cx: &mut App) {
183 let editor = &self.editor;
184 editor.update(cx, |editor, cx| {
185 for action in editor.editor_actions.borrow().values() {
186 (action)(window, cx)
187 }
188 });
189
190 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
191 crate::clangd_ext::apply_related_actions(editor, window, cx);
192 register_action(editor, window, Editor::open_context_menu);
193 register_action(editor, window, Editor::move_left);
194 register_action(editor, window, Editor::move_right);
195 register_action(editor, window, Editor::move_down);
196 register_action(editor, window, Editor::move_down_by_lines);
197 register_action(editor, window, Editor::select_down_by_lines);
198 register_action(editor, window, Editor::move_up);
199 register_action(editor, window, Editor::move_up_by_lines);
200 register_action(editor, window, Editor::select_up_by_lines);
201 register_action(editor, window, Editor::select_page_down);
202 register_action(editor, window, Editor::select_page_up);
203 register_action(editor, window, Editor::cancel);
204 register_action(editor, window, Editor::newline);
205 register_action(editor, window, Editor::newline_above);
206 register_action(editor, window, Editor::newline_below);
207 register_action(editor, window, Editor::backspace);
208 register_action(editor, window, Editor::delete);
209 register_action(editor, window, Editor::tab);
210 register_action(editor, window, Editor::tab_prev);
211 register_action(editor, window, Editor::indent);
212 register_action(editor, window, Editor::outdent);
213 register_action(editor, window, Editor::autoindent);
214 register_action(editor, window, Editor::delete_line);
215 register_action(editor, window, Editor::join_lines);
216 register_action(editor, window, Editor::sort_lines_case_sensitive);
217 register_action(editor, window, Editor::sort_lines_case_insensitive);
218 register_action(editor, window, Editor::reverse_lines);
219 register_action(editor, window, Editor::shuffle_lines);
220 register_action(editor, window, Editor::convert_to_upper_case);
221 register_action(editor, window, Editor::convert_to_lower_case);
222 register_action(editor, window, Editor::convert_to_title_case);
223 register_action(editor, window, Editor::convert_to_snake_case);
224 register_action(editor, window, Editor::convert_to_kebab_case);
225 register_action(editor, window, Editor::convert_to_upper_camel_case);
226 register_action(editor, window, Editor::convert_to_lower_camel_case);
227 register_action(editor, window, Editor::convert_to_opposite_case);
228 register_action(editor, window, Editor::delete_to_previous_word_start);
229 register_action(editor, window, Editor::delete_to_previous_subword_start);
230 register_action(editor, window, Editor::delete_to_next_word_end);
231 register_action(editor, window, Editor::delete_to_next_subword_end);
232 register_action(editor, window, Editor::delete_to_beginning_of_line);
233 register_action(editor, window, Editor::delete_to_end_of_line);
234 register_action(editor, window, Editor::cut_to_end_of_line);
235 register_action(editor, window, Editor::duplicate_line_up);
236 register_action(editor, window, Editor::duplicate_line_down);
237 register_action(editor, window, Editor::duplicate_selection);
238 register_action(editor, window, Editor::move_line_up);
239 register_action(editor, window, Editor::move_line_down);
240 register_action(editor, window, Editor::transpose);
241 register_action(editor, window, Editor::rewrap);
242 register_action(editor, window, Editor::cut);
243 register_action(editor, window, Editor::kill_ring_cut);
244 register_action(editor, window, Editor::kill_ring_yank);
245 register_action(editor, window, Editor::copy);
246 register_action(editor, window, Editor::paste);
247 register_action(editor, window, Editor::undo);
248 register_action(editor, window, Editor::redo);
249 register_action(editor, window, Editor::move_page_up);
250 register_action(editor, window, Editor::move_page_down);
251 register_action(editor, window, Editor::next_screen);
252 register_action(editor, window, Editor::scroll_cursor_top);
253 register_action(editor, window, Editor::scroll_cursor_center);
254 register_action(editor, window, Editor::scroll_cursor_bottom);
255 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
256 register_action(editor, window, |editor, _: &LineDown, window, cx| {
257 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
258 });
259 register_action(editor, window, |editor, _: &LineUp, window, cx| {
260 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
261 });
262 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
263 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
264 });
265 register_action(
266 editor,
267 window,
268 |editor, HandleInput(text): &HandleInput, window, cx| {
269 if text.is_empty() {
270 return;
271 }
272 editor.handle_input(text, window, cx);
273 },
274 );
275 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
276 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
277 });
278 register_action(editor, window, |editor, _: &PageDown, window, cx| {
279 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
280 });
281 register_action(editor, window, |editor, _: &PageUp, window, cx| {
282 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
283 });
284 register_action(editor, window, Editor::move_to_previous_word_start);
285 register_action(editor, window, Editor::move_to_previous_subword_start);
286 register_action(editor, window, Editor::move_to_next_word_end);
287 register_action(editor, window, Editor::move_to_next_subword_end);
288 register_action(editor, window, Editor::move_to_beginning_of_line);
289 register_action(editor, window, Editor::move_to_end_of_line);
290 register_action(editor, window, Editor::move_to_start_of_paragraph);
291 register_action(editor, window, Editor::move_to_end_of_paragraph);
292 register_action(editor, window, Editor::move_to_beginning);
293 register_action(editor, window, Editor::move_to_end);
294 register_action(editor, window, Editor::select_up);
295 register_action(editor, window, Editor::select_down);
296 register_action(editor, window, Editor::select_left);
297 register_action(editor, window, Editor::select_right);
298 register_action(editor, window, Editor::select_to_previous_word_start);
299 register_action(editor, window, Editor::select_to_previous_subword_start);
300 register_action(editor, window, Editor::select_to_next_word_end);
301 register_action(editor, window, Editor::select_to_next_subword_end);
302 register_action(editor, window, Editor::select_to_beginning_of_line);
303 register_action(editor, window, Editor::select_to_end_of_line);
304 register_action(editor, window, Editor::select_to_start_of_paragraph);
305 register_action(editor, window, Editor::select_to_end_of_paragraph);
306 register_action(editor, window, Editor::select_to_beginning);
307 register_action(editor, window, Editor::select_to_end);
308 register_action(editor, window, Editor::select_all);
309 register_action(editor, window, |editor, action, window, cx| {
310 editor.select_all_matches(action, window, cx).log_err();
311 });
312 register_action(editor, window, Editor::select_line);
313 register_action(editor, window, Editor::split_selection_into_lines);
314 register_action(editor, window, Editor::add_selection_above);
315 register_action(editor, window, Editor::add_selection_below);
316 register_action(editor, window, |editor, action, window, cx| {
317 editor.select_next(action, window, cx).log_err();
318 });
319 register_action(editor, window, |editor, action, window, cx| {
320 editor.select_previous(action, window, cx).log_err();
321 });
322 register_action(editor, window, Editor::toggle_comments);
323 register_action(editor, window, Editor::select_larger_syntax_node);
324 register_action(editor, window, Editor::select_smaller_syntax_node);
325 register_action(editor, window, Editor::select_enclosing_symbol);
326 register_action(editor, window, Editor::move_to_enclosing_bracket);
327 register_action(editor, window, Editor::undo_selection);
328 register_action(editor, window, Editor::redo_selection);
329 if !editor.read(cx).is_singleton(cx) {
330 register_action(editor, window, Editor::expand_excerpts);
331 register_action(editor, window, Editor::expand_excerpts_up);
332 register_action(editor, window, Editor::expand_excerpts_down);
333 }
334 register_action(editor, window, Editor::go_to_diagnostic);
335 register_action(editor, window, Editor::go_to_prev_diagnostic);
336 register_action(editor, window, Editor::go_to_next_hunk);
337 register_action(editor, window, Editor::go_to_prev_hunk);
338 register_action(editor, window, |editor, action, window, cx| {
339 editor
340 .go_to_definition(action, window, cx)
341 .detach_and_log_err(cx);
342 });
343 register_action(editor, window, |editor, action, window, cx| {
344 editor
345 .go_to_definition_split(action, window, cx)
346 .detach_and_log_err(cx);
347 });
348 register_action(editor, window, |editor, action, window, cx| {
349 editor
350 .go_to_declaration(action, window, cx)
351 .detach_and_log_err(cx);
352 });
353 register_action(editor, window, |editor, action, window, cx| {
354 editor
355 .go_to_declaration_split(action, window, cx)
356 .detach_and_log_err(cx);
357 });
358 register_action(editor, window, |editor, action, window, cx| {
359 editor
360 .go_to_implementation(action, window, cx)
361 .detach_and_log_err(cx);
362 });
363 register_action(editor, window, |editor, action, window, cx| {
364 editor
365 .go_to_implementation_split(action, window, cx)
366 .detach_and_log_err(cx);
367 });
368 register_action(editor, window, |editor, action, window, cx| {
369 editor
370 .go_to_type_definition(action, window, cx)
371 .detach_and_log_err(cx);
372 });
373 register_action(editor, window, |editor, action, window, cx| {
374 editor
375 .go_to_type_definition_split(action, window, cx)
376 .detach_and_log_err(cx);
377 });
378 register_action(editor, window, Editor::open_url);
379 register_action(editor, window, Editor::open_selected_filename);
380 register_action(editor, window, Editor::fold);
381 register_action(editor, window, Editor::fold_at_level);
382 register_action(editor, window, Editor::fold_all);
383 register_action(editor, window, Editor::fold_function_bodies);
384 register_action(editor, window, Editor::fold_at);
385 register_action(editor, window, Editor::fold_recursive);
386 register_action(editor, window, Editor::toggle_fold);
387 register_action(editor, window, Editor::toggle_fold_recursive);
388 register_action(editor, window, Editor::unfold_lines);
389 register_action(editor, window, Editor::unfold_recursive);
390 register_action(editor, window, Editor::unfold_all);
391 register_action(editor, window, Editor::unfold_at);
392 register_action(editor, window, Editor::fold_selected_ranges);
393 register_action(editor, window, Editor::set_mark);
394 register_action(editor, window, Editor::swap_selection_ends);
395 register_action(editor, window, Editor::show_completions);
396 register_action(editor, window, Editor::toggle_code_actions);
397 register_action(editor, window, Editor::open_excerpts);
398 register_action(editor, window, Editor::open_excerpts_in_split);
399 register_action(editor, window, Editor::open_proposed_changes_editor);
400 register_action(editor, window, Editor::toggle_soft_wrap);
401 register_action(editor, window, Editor::toggle_tab_bar);
402 register_action(editor, window, Editor::toggle_line_numbers);
403 register_action(editor, window, Editor::toggle_relative_line_numbers);
404 register_action(editor, window, Editor::toggle_indent_guides);
405 register_action(editor, window, Editor::toggle_inlay_hints);
406 register_action(editor, window, Editor::toggle_inline_completions);
407 register_action(editor, window, hover_popover::hover);
408 register_action(editor, window, Editor::reveal_in_finder);
409 register_action(editor, window, Editor::copy_path);
410 register_action(editor, window, Editor::copy_relative_path);
411 register_action(editor, window, Editor::copy_file_name);
412 register_action(editor, window, Editor::copy_file_name_without_extension);
413 register_action(editor, window, Editor::copy_highlight_json);
414 register_action(editor, window, Editor::copy_permalink_to_line);
415 register_action(editor, window, Editor::open_permalink_to_line);
416 register_action(editor, window, Editor::copy_file_location);
417 register_action(editor, window, Editor::toggle_git_blame);
418 register_action(editor, window, Editor::toggle_git_blame_inline);
419 register_action(editor, window, Editor::toggle_selected_diff_hunks);
420 register_action(editor, window, Editor::expand_all_diff_hunks);
421 register_action(editor, window, |editor, action, window, cx| {
422 if let Some(task) = editor.format(action, window, cx) {
423 task.detach_and_notify_err(window, cx);
424 } else {
425 cx.propagate();
426 }
427 });
428 register_action(editor, window, |editor, action, window, cx| {
429 if let Some(task) = editor.format_selections(action, window, cx) {
430 task.detach_and_notify_err(window, cx);
431 } else {
432 cx.propagate();
433 }
434 });
435 register_action(editor, window, Editor::restart_language_server);
436 register_action(editor, window, Editor::show_character_palette);
437 register_action(editor, window, |editor, action, window, cx| {
438 if let Some(task) = editor.confirm_completion(action, window, cx) {
439 task.detach_and_notify_err(window, cx);
440 } else {
441 cx.propagate();
442 }
443 });
444 register_action(editor, window, |editor, action, window, cx| {
445 if let Some(task) = editor.compose_completion(action, window, cx) {
446 task.detach_and_notify_err(window, cx);
447 } else {
448 cx.propagate();
449 }
450 });
451 register_action(editor, window, |editor, action, window, cx| {
452 if let Some(task) = editor.confirm_code_action(action, window, cx) {
453 task.detach_and_notify_err(window, cx);
454 } else {
455 cx.propagate();
456 }
457 });
458 register_action(editor, window, |editor, action, window, cx| {
459 if let Some(task) = editor.rename(action, window, cx) {
460 task.detach_and_notify_err(window, cx);
461 } else {
462 cx.propagate();
463 }
464 });
465 register_action(editor, window, |editor, action, window, cx| {
466 if let Some(task) = editor.confirm_rename(action, window, cx) {
467 task.detach_and_notify_err(window, cx);
468 } else {
469 cx.propagate();
470 }
471 });
472 register_action(editor, window, |editor, action, window, cx| {
473 if let Some(task) = editor.find_all_references(action, window, cx) {
474 task.detach_and_log_err(cx);
475 } else {
476 cx.propagate();
477 }
478 });
479 register_action(editor, window, Editor::show_signature_help);
480 register_action(editor, window, Editor::next_edit_prediction);
481 register_action(editor, window, Editor::previous_edit_prediction);
482 register_action(editor, window, Editor::show_inline_completion);
483 register_action(editor, window, Editor::context_menu_first);
484 register_action(editor, window, Editor::context_menu_prev);
485 register_action(editor, window, Editor::context_menu_next);
486 register_action(editor, window, Editor::context_menu_last);
487 register_action(editor, window, Editor::display_cursor_names);
488 register_action(editor, window, Editor::unique_lines_case_insensitive);
489 register_action(editor, window, Editor::unique_lines_case_sensitive);
490 register_action(editor, window, Editor::accept_partial_inline_completion);
491 register_action(editor, window, Editor::accept_edit_prediction);
492 register_action(editor, window, Editor::revert_file);
493 register_action(editor, window, Editor::revert_selected_hunks);
494 register_action(editor, window, Editor::apply_all_diff_hunks);
495 register_action(editor, window, Editor::apply_selected_diff_hunks);
496 register_action(editor, window, Editor::open_active_item_in_terminal);
497 register_action(editor, window, Editor::reload_file);
498 register_action(editor, window, Editor::spawn_nearest_task);
499 register_action(editor, window, Editor::insert_uuid_v4);
500 register_action(editor, window, Editor::insert_uuid_v7);
501 register_action(editor, window, Editor::open_selections_in_multibuffer);
502 }
503
504 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
505 let position_map = layout.position_map.clone();
506 window.on_key_event({
507 let editor = self.editor.clone();
508 move |event: &ModifiersChangedEvent, phase, window, cx| {
509 if phase != DispatchPhase::Bubble {
510 return;
511 }
512 editor.update(cx, |editor, cx| {
513 if editor.hover_state.focused(window, cx) {
514 return;
515 }
516 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
517 })
518 }
519 });
520 }
521
522 fn mouse_left_down(
523 editor: &mut Editor,
524 event: &MouseDownEvent,
525 hovered_hunk: Option<Range<Anchor>>,
526 position_map: &PositionMap,
527 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
528 window: &mut Window,
529 cx: &mut Context<Editor>,
530 ) {
531 if window.default_prevented() {
532 return;
533 }
534
535 let text_hitbox = &position_map.text_hitbox;
536 let gutter_hitbox = &position_map.gutter_hitbox;
537 let mut click_count = event.click_count;
538 let mut modifiers = event.modifiers;
539
540 if let Some(hovered_hunk) = hovered_hunk {
541 editor.toggle_diff_hunks_in_ranges_narrow(vec![hovered_hunk], cx);
542 cx.notify();
543 return;
544 } else if gutter_hitbox.is_hovered(window) {
545 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
546 } else if !text_hitbox.is_hovered(window) {
547 return;
548 }
549
550 let is_singleton = editor.buffer().read(cx).is_singleton();
551
552 if click_count == 2 && !is_singleton {
553 match EditorSettings::get_global(cx).double_click_in_multibuffer {
554 DoubleClickInMultibuffer::Select => {
555 // do nothing special on double click, all selection logic is below
556 }
557 DoubleClickInMultibuffer::Open => {
558 if modifiers.alt {
559 // if double click is made with alt, pretend it's a regular double click without opening and alt,
560 // and run the selection logic.
561 modifiers.alt = false;
562 } else {
563 let scroll_position_row =
564 position_map.scroll_pixel_position.y / position_map.line_height;
565 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
566 + position_map.scroll_pixel_position.y)
567 / position_map.line_height)
568 as u32;
569 let multi_buffer_row = position_map
570 .snapshot
571 .display_point_to_point(
572 DisplayPoint::new(DisplayRow(display_row), 0),
573 Bias::Right,
574 )
575 .row;
576 let line_offset_from_top = display_row - scroll_position_row as u32;
577 // if double click is made without alt, open the corresponding excerp
578 editor.open_excerpts_common(
579 Some(JumpData::MultiBufferRow {
580 row: MultiBufferRow(multi_buffer_row),
581 line_offset_from_top,
582 }),
583 false,
584 window,
585 cx,
586 );
587 return;
588 }
589 }
590 }
591 }
592
593 let point_for_position = position_map.point_for_position(event.position);
594 let position = point_for_position.previous_valid;
595 if modifiers.shift && modifiers.alt {
596 editor.select(
597 SelectPhase::BeginColumnar {
598 position,
599 reset: false,
600 goal_column: point_for_position.exact_unclipped.column(),
601 },
602 window,
603 cx,
604 );
605 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
606 {
607 editor.select(
608 SelectPhase::Extend {
609 position,
610 click_count,
611 },
612 window,
613 cx,
614 );
615 } else {
616 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
617 let multi_cursor_modifier = match multi_cursor_setting {
618 MultiCursorModifier::Alt => modifiers.alt,
619 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
620 };
621 editor.select(
622 SelectPhase::Begin {
623 position,
624 add: multi_cursor_modifier,
625 click_count,
626 },
627 window,
628 cx,
629 );
630 }
631 cx.stop_propagation();
632
633 if !is_singleton {
634 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
635 + position_map.scroll_pixel_position.y)
636 / position_map.line_height) as u32;
637 let multi_buffer_row = position_map
638 .snapshot
639 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
640 .row;
641 if line_numbers
642 .get(&MultiBufferRow(multi_buffer_row))
643 .and_then(|line_number| line_number.hitbox.as_ref())
644 .is_some_and(|hitbox| hitbox.contains(&event.position))
645 {
646 let scroll_position_row =
647 position_map.scroll_pixel_position.y / position_map.line_height;
648 let line_offset_from_top = display_row - scroll_position_row as u32;
649
650 editor.open_excerpts_common(
651 Some(JumpData::MultiBufferRow {
652 row: MultiBufferRow(multi_buffer_row),
653 line_offset_from_top,
654 }),
655 modifiers.alt,
656 window,
657 cx,
658 );
659 cx.stop_propagation();
660 }
661 }
662 }
663
664 fn mouse_right_down(
665 editor: &mut Editor,
666 event: &MouseDownEvent,
667 position_map: &PositionMap,
668 window: &mut Window,
669 cx: &mut Context<Editor>,
670 ) {
671 if !position_map.text_hitbox.is_hovered(window) {
672 return;
673 }
674 let point_for_position = position_map.point_for_position(event.position);
675 mouse_context_menu::deploy_context_menu(
676 editor,
677 Some(event.position),
678 point_for_position.previous_valid,
679 window,
680 cx,
681 );
682 cx.stop_propagation();
683 }
684
685 fn mouse_middle_down(
686 editor: &mut Editor,
687 event: &MouseDownEvent,
688 position_map: &PositionMap,
689 window: &mut Window,
690 cx: &mut Context<Editor>,
691 ) {
692 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
693 return;
694 }
695
696 let point_for_position = position_map.point_for_position(event.position);
697 let position = point_for_position.previous_valid;
698
699 editor.select(
700 SelectPhase::BeginColumnar {
701 position,
702 reset: true,
703 goal_column: point_for_position.exact_unclipped.column(),
704 },
705 window,
706 cx,
707 );
708 }
709
710 fn mouse_up(
711 editor: &mut Editor,
712 event: &MouseUpEvent,
713 position_map: &PositionMap,
714 window: &mut Window,
715 cx: &mut Context<Editor>,
716 ) {
717 let text_hitbox = &position_map.text_hitbox;
718 let end_selection = editor.has_pending_selection();
719 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
720
721 if end_selection {
722 editor.select(SelectPhase::End, window, cx);
723 }
724
725 if end_selection && pending_nonempty_selections {
726 cx.stop_propagation();
727 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
728 && event.button == MouseButton::Middle
729 {
730 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
731 return;
732 }
733
734 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
735 if EditorSettings::get_global(cx).middle_click_paste {
736 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
737 let point_for_position = position_map.point_for_position(event.position);
738 let position = point_for_position.previous_valid;
739
740 editor.select(
741 SelectPhase::Begin {
742 position,
743 add: false,
744 click_count: 1,
745 },
746 window,
747 cx,
748 );
749 editor.insert(&text, window, cx);
750 }
751 cx.stop_propagation()
752 }
753 }
754 }
755
756 fn click(
757 editor: &mut Editor,
758 event: &ClickEvent,
759 position_map: &PositionMap,
760 window: &mut Window,
761 cx: &mut Context<Editor>,
762 ) {
763 let text_hitbox = &position_map.text_hitbox;
764 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
765
766 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
767 let multi_cursor_modifier = match multi_cursor_setting {
768 MultiCursorModifier::Alt => event.modifiers().secondary(),
769 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
770 };
771
772 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
773 let point = position_map.point_for_position(event.up.position);
774 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
775
776 cx.stop_propagation();
777 }
778 }
779
780 fn mouse_dragged(
781 editor: &mut Editor,
782 event: &MouseMoveEvent,
783 position_map: &PositionMap,
784 window: &mut Window,
785 cx: &mut Context<Editor>,
786 ) {
787 if !editor.has_pending_selection() {
788 return;
789 }
790
791 let text_bounds = position_map.text_hitbox.bounds;
792 let point_for_position = position_map.point_for_position(event.position);
793 let mut scroll_delta = gpui::Point::<f32>::default();
794 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
795 let top = text_bounds.origin.y + vertical_margin;
796 let bottom = text_bounds.bottom_left().y - vertical_margin;
797 if event.position.y < top {
798 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
799 }
800 if event.position.y > bottom {
801 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
802 }
803
804 // We need horizontal width of text
805 let style = editor.style.clone().unwrap_or_default();
806 let font_id = window.text_system().resolve_font(&style.text.font());
807 let font_size = style.text.font_size.to_pixels(window.rem_size());
808 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
809
810 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
811
812 let scroll_space: Pixels = scroll_margin_x * em_width;
813
814 let left = text_bounds.origin.x + scroll_space;
815 let right = text_bounds.top_right().x - scroll_space;
816
817 if event.position.x < left {
818 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
819 }
820 if event.position.x > right {
821 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
822 }
823
824 editor.select(
825 SelectPhase::Update {
826 position: point_for_position.previous_valid,
827 goal_column: point_for_position.exact_unclipped.column(),
828 scroll_delta,
829 },
830 window,
831 cx,
832 );
833 }
834
835 fn mouse_moved(
836 editor: &mut Editor,
837 event: &MouseMoveEvent,
838 position_map: &PositionMap,
839 window: &mut Window,
840 cx: &mut Context<Editor>,
841 ) {
842 let text_hitbox = &position_map.text_hitbox;
843 let gutter_hitbox = &position_map.gutter_hitbox;
844 let modifiers = event.modifiers;
845 let gutter_hovered = gutter_hitbox.is_hovered(window);
846 editor.set_gutter_hovered(gutter_hovered, cx);
847
848 // Don't trigger hover popover if mouse is hovering over context menu
849 if text_hitbox.is_hovered(window) {
850 let point_for_position = position_map.point_for_position(event.position);
851
852 editor.update_hovered_link(
853 point_for_position,
854 &position_map.snapshot,
855 modifiers,
856 window,
857 cx,
858 );
859
860 if let Some(point) = point_for_position.as_valid() {
861 let anchor = position_map
862 .snapshot
863 .buffer_snapshot
864 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
865 hover_at(editor, Some(anchor), window, cx);
866 Self::update_visible_cursor(editor, point, position_map, window, cx);
867 } else {
868 hover_at(editor, None, window, cx);
869 }
870 } else {
871 editor.hide_hovered_link(cx);
872 hover_at(editor, None, window, cx);
873 if gutter_hovered {
874 cx.stop_propagation();
875 }
876 }
877 }
878
879 fn update_visible_cursor(
880 editor: &mut Editor,
881 point: DisplayPoint,
882 position_map: &PositionMap,
883 window: &mut Window,
884 cx: &mut Context<Editor>,
885 ) {
886 let snapshot = &position_map.snapshot;
887 let Some(hub) = editor.collaboration_hub() else {
888 return;
889 };
890 let start = snapshot.display_snapshot.clip_point(
891 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
892 Bias::Left,
893 );
894 let end = snapshot.display_snapshot.clip_point(
895 DisplayPoint::new(
896 point.row(),
897 (point.column() + 1).min(snapshot.line_len(point.row())),
898 ),
899 Bias::Right,
900 );
901
902 let range = snapshot
903 .buffer_snapshot
904 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
905 ..snapshot
906 .buffer_snapshot
907 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
908
909 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
910 return;
911 };
912 let key = crate::HoveredCursor {
913 replica_id: selection.replica_id,
914 selection_id: selection.selection.id,
915 };
916 editor.hovered_cursors.insert(
917 key.clone(),
918 cx.spawn_in(window, |editor, mut cx| async move {
919 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
920 editor
921 .update(&mut cx, |editor, cx| {
922 editor.hovered_cursors.remove(&key);
923 cx.notify();
924 })
925 .ok();
926 }),
927 );
928 cx.notify()
929 }
930
931 #[allow(clippy::too_many_arguments)]
932 fn layout_selections(
933 &self,
934 start_anchor: Anchor,
935 end_anchor: Anchor,
936 local_selections: &[Selection<Point>],
937 snapshot: &EditorSnapshot,
938 start_row: DisplayRow,
939 end_row: DisplayRow,
940 window: &mut Window,
941 cx: &mut App,
942 ) -> (
943 Vec<(PlayerColor, Vec<SelectionLayout>)>,
944 BTreeMap<DisplayRow, bool>,
945 Option<DisplayPoint>,
946 ) {
947 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
948 let mut active_rows = BTreeMap::new();
949 let mut newest_selection_head = None;
950 self.editor.update(cx, |editor, cx| {
951 if editor.show_local_selections {
952 let mut layouts = Vec::new();
953 let newest = editor.selections.newest(cx);
954 for selection in local_selections.iter().cloned() {
955 let is_empty = selection.start == selection.end;
956 let is_newest = selection == newest;
957
958 let layout = SelectionLayout::new(
959 selection,
960 editor.selections.line_mode,
961 editor.cursor_shape,
962 &snapshot.display_snapshot,
963 is_newest,
964 editor.leader_peer_id.is_none(),
965 None,
966 );
967 if is_newest {
968 newest_selection_head = Some(layout.head);
969 }
970
971 for row in cmp::max(layout.active_rows.start.0, start_row.0)
972 ..=cmp::min(layout.active_rows.end.0, end_row.0)
973 {
974 let contains_non_empty_selection =
975 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
976 *contains_non_empty_selection |= !is_empty;
977 }
978 layouts.push(layout);
979 }
980
981 let player = editor.current_user_player_color(cx);
982 selections.push((player, layouts));
983 }
984
985 if let Some(collaboration_hub) = &editor.collaboration_hub {
986 // When following someone, render the local selections in their color.
987 if let Some(leader_id) = editor.leader_peer_id {
988 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
989 {
990 if let Some(participant_index) = collaboration_hub
991 .user_participant_indices(cx)
992 .get(&collaborator.user_id)
993 {
994 if let Some((local_selection_style, _)) = selections.first_mut() {
995 *local_selection_style = cx
996 .theme()
997 .players()
998 .color_for_participant(participant_index.0);
999 }
1000 }
1001 }
1002 }
1003
1004 let mut remote_selections = HashMap::default();
1005 for selection in snapshot.remote_selections_in_range(
1006 &(start_anchor..end_anchor),
1007 collaboration_hub.as_ref(),
1008 cx,
1009 ) {
1010 let selection_style =
1011 Self::get_participant_color(selection.participant_index, cx);
1012
1013 // Don't re-render the leader's selections, since the local selections
1014 // match theirs.
1015 if Some(selection.peer_id) == editor.leader_peer_id {
1016 continue;
1017 }
1018 let key = HoveredCursor {
1019 replica_id: selection.replica_id,
1020 selection_id: selection.selection.id,
1021 };
1022
1023 let is_shown =
1024 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1025
1026 remote_selections
1027 .entry(selection.replica_id)
1028 .or_insert((selection_style, Vec::new()))
1029 .1
1030 .push(SelectionLayout::new(
1031 selection.selection,
1032 selection.line_mode,
1033 selection.cursor_shape,
1034 &snapshot.display_snapshot,
1035 false,
1036 false,
1037 if is_shown { selection.user_name } else { None },
1038 ));
1039 }
1040
1041 selections.extend(remote_selections.into_values());
1042 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1043 let layouts = snapshot
1044 .buffer_snapshot
1045 .selections_in_range(&(start_anchor..end_anchor), true)
1046 .map(move |(_, line_mode, cursor_shape, selection)| {
1047 SelectionLayout::new(
1048 selection,
1049 line_mode,
1050 cursor_shape,
1051 &snapshot.display_snapshot,
1052 false,
1053 false,
1054 None,
1055 )
1056 })
1057 .collect::<Vec<_>>();
1058 let player = editor.current_user_player_color(cx);
1059 selections.push((player, layouts));
1060 }
1061 });
1062 (selections, active_rows, newest_selection_head)
1063 }
1064
1065 fn collect_cursors(
1066 &self,
1067 snapshot: &EditorSnapshot,
1068 cx: &mut App,
1069 ) -> Vec<(DisplayPoint, Hsla)> {
1070 let editor = self.editor.read(cx);
1071 let mut cursors = Vec::new();
1072 let mut skip_local = false;
1073 let mut add_cursor = |anchor: Anchor, color| {
1074 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1075 };
1076 // Remote cursors
1077 if let Some(collaboration_hub) = &editor.collaboration_hub {
1078 for remote_selection in snapshot.remote_selections_in_range(
1079 &(Anchor::min()..Anchor::max()),
1080 collaboration_hub.deref(),
1081 cx,
1082 ) {
1083 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1084 add_cursor(remote_selection.selection.head(), color.cursor);
1085 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1086 skip_local = true;
1087 }
1088 }
1089 }
1090 // Local cursors
1091 if !skip_local {
1092 let color = cx.theme().players().local().cursor;
1093 editor.selections.disjoint.iter().for_each(|selection| {
1094 add_cursor(selection.head(), color);
1095 });
1096 if let Some(ref selection) = editor.selections.pending_anchor() {
1097 add_cursor(selection.head(), color);
1098 }
1099 }
1100 cursors
1101 }
1102
1103 #[allow(clippy::too_many_arguments)]
1104 fn layout_visible_cursors(
1105 &self,
1106 snapshot: &EditorSnapshot,
1107 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1108 block_start_rows: &HashSet<DisplayRow>,
1109 visible_display_row_range: Range<DisplayRow>,
1110 line_layouts: &[LineWithInvisibles],
1111 text_hitbox: &Hitbox,
1112 content_origin: gpui::Point<Pixels>,
1113 scroll_position: gpui::Point<f32>,
1114 scroll_pixel_position: gpui::Point<Pixels>,
1115 line_height: Pixels,
1116 em_width: Pixels,
1117 em_advance: Pixels,
1118 autoscroll_containing_element: bool,
1119 window: &mut Window,
1120 cx: &mut App,
1121 ) -> Vec<CursorLayout> {
1122 let mut autoscroll_bounds = None;
1123 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1124 let mut cursors = Vec::new();
1125
1126 let show_local_cursors = editor.show_local_cursors(window, cx);
1127
1128 for (player_color, selections) in selections {
1129 for selection in selections {
1130 let cursor_position = selection.head;
1131
1132 let in_range = visible_display_row_range.contains(&cursor_position.row());
1133 if (selection.is_local && !show_local_cursors)
1134 || !in_range
1135 || block_start_rows.contains(&cursor_position.row())
1136 {
1137 continue;
1138 }
1139
1140 let cursor_row_layout = &line_layouts
1141 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1142 let cursor_column = cursor_position.column() as usize;
1143
1144 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1145 let mut block_width =
1146 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1147 if block_width == Pixels::ZERO {
1148 block_width = em_advance;
1149 }
1150 let block_text = if let CursorShape::Block = selection.cursor_shape {
1151 snapshot
1152 .grapheme_at(cursor_position)
1153 .or_else(|| {
1154 if cursor_column == 0 {
1155 snapshot.placeholder_text().and_then(|s| {
1156 s.graphemes(true).next().map(|s| s.to_string().into())
1157 })
1158 } else {
1159 None
1160 }
1161 })
1162 .and_then(|text| {
1163 let len = text.len();
1164
1165 let font = cursor_row_layout
1166 .font_id_for_index(cursor_column)
1167 .and_then(|cursor_font_id| {
1168 window.text_system().get_font_for_id(cursor_font_id)
1169 })
1170 .unwrap_or(self.style.text.font());
1171
1172 // Invert the text color for the block cursor. Ensure that the text
1173 // color is opaque enough to be visible against the background color.
1174 //
1175 // 0.75 is an arbitrary threshold to determine if the background color is
1176 // opaque enough to use as a text color.
1177 //
1178 // TODO: In the future we should ensure themes have a `text_inverse` color.
1179 let color = if cx.theme().colors().editor_background.a < 0.75 {
1180 match cx.theme().appearance {
1181 Appearance::Dark => Hsla::black(),
1182 Appearance::Light => Hsla::white(),
1183 }
1184 } else {
1185 cx.theme().colors().editor_background
1186 };
1187
1188 window
1189 .text_system()
1190 .shape_line(
1191 text,
1192 cursor_row_layout.font_size,
1193 &[TextRun {
1194 len,
1195 font,
1196 color,
1197 background_color: None,
1198 strikethrough: None,
1199 underline: None,
1200 }],
1201 )
1202 .log_err()
1203 })
1204 } else {
1205 None
1206 };
1207
1208 let x = cursor_character_x - scroll_pixel_position.x;
1209 let y = (cursor_position.row().as_f32()
1210 - scroll_pixel_position.y / line_height)
1211 * line_height;
1212 if selection.is_newest {
1213 editor.pixel_position_of_newest_cursor = Some(point(
1214 text_hitbox.origin.x + x + block_width / 2.,
1215 text_hitbox.origin.y + y + line_height / 2.,
1216 ));
1217
1218 if autoscroll_containing_element {
1219 let top = text_hitbox.origin.y
1220 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1221 * line_height;
1222 let left = text_hitbox.origin.x
1223 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1224 .max(0.)
1225 * em_width;
1226
1227 let bottom = text_hitbox.origin.y
1228 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1229 * line_height;
1230 let right = text_hitbox.origin.x
1231 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1232 * em_width;
1233
1234 autoscroll_bounds =
1235 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1236 }
1237 }
1238
1239 let mut cursor = CursorLayout {
1240 color: player_color.cursor,
1241 block_width,
1242 origin: point(x, y),
1243 line_height,
1244 shape: selection.cursor_shape,
1245 block_text,
1246 cursor_name: None,
1247 };
1248 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1249 string: name,
1250 color: self.style.background,
1251 is_top_row: cursor_position.row().0 == 0,
1252 });
1253 cursor.layout(content_origin, cursor_name, window, cx);
1254 cursors.push(cursor);
1255 }
1256 }
1257
1258 cursors
1259 });
1260
1261 if let Some(bounds) = autoscroll_bounds {
1262 window.request_autoscroll(bounds);
1263 }
1264
1265 cursor_layouts
1266 }
1267
1268 fn layout_scrollbars(
1269 &self,
1270 snapshot: &EditorSnapshot,
1271 scrollbar_range_data: ScrollbarRangeData,
1272 scroll_position: gpui::Point<f32>,
1273 non_visible_cursors: bool,
1274 window: &mut Window,
1275 cx: &mut App,
1276 ) -> AxisPair<Option<ScrollbarLayout>> {
1277 let letter_size = scrollbar_range_data.letter_size;
1278 let text_units_per_page = axis_pair(
1279 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1280 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1281 );
1282
1283 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1284 let show_scrollbars = self.editor.read(cx).show_scrollbars
1285 && match scrollbar_settings.show {
1286 ShowScrollbar::Auto => {
1287 let editor = self.editor.read(cx);
1288 let is_singleton = editor.is_singleton(cx);
1289 // Git
1290 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1291 ||
1292 // Buffer Search Results
1293 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1294 ||
1295 // Selected Symbol Occurrences
1296 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1297 ||
1298 // Diagnostics
1299 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1300 ||
1301 // Cursors out of sight
1302 non_visible_cursors
1303 ||
1304 // Scrollmanager
1305 editor.scroll_manager.scrollbars_visible()
1306 }
1307 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1308 ShowScrollbar::Always => true,
1309 ShowScrollbar::Never => false,
1310 };
1311
1312 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1313
1314 if snapshot.mode != EditorMode::Full {
1315 return axis_pair(None, None);
1316 }
1317
1318 let visible_range = axis_pair(
1319 axes.horizontal
1320 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1321 axes.vertical
1322 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1323 );
1324
1325 // If a drag took place after we started dragging the scrollbar,
1326 // cancel the scrollbar drag.
1327 if cx.has_active_drag() {
1328 self.editor.update(cx, |editor, cx| {
1329 editor
1330 .scroll_manager
1331 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1332 editor
1333 .scroll_manager
1334 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1335 });
1336 }
1337
1338 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1339
1340 let track_bounds = axis_pair(
1341 axes.horizontal.then(|| {
1342 Bounds::from_corners(
1343 point(
1344 text_bounds.bottom_left().x,
1345 text_bounds.bottom_left().y - self.style.scrollbar_width,
1346 ),
1347 point(
1348 text_bounds.bottom_right().x
1349 - if axes.vertical {
1350 self.style.scrollbar_width
1351 } else {
1352 px(0.)
1353 },
1354 text_bounds.bottom_right().y,
1355 ),
1356 )
1357 }),
1358 axes.vertical.then(|| {
1359 Bounds::from_corners(
1360 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1361 text_bounds.bottom_right(),
1362 )
1363 }),
1364 );
1365
1366 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1367 let total_text_units = axis_pair(
1368 Some(scroll_range_size.width / letter_size.width),
1369 Some(scroll_range_size.height / letter_size.height),
1370 );
1371
1372 let thumb_size = axis_pair(
1373 total_text_units
1374 .horizontal
1375 .zip(track_bounds.horizontal)
1376 .and_then(|(total_text_units_x, track_bounds_x)| {
1377 if text_units_per_page.horizontal >= total_text_units_x {
1378 return None;
1379 }
1380
1381 let thumb_percent =
1382 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1383
1384 Some(track_bounds_x.size.width * thumb_percent)
1385 }),
1386 total_text_units.vertical.zip(track_bounds.vertical).map(
1387 |(total_text_units_y, track_bounds_y)| {
1388 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1389
1390 track_bounds_y.size.height * thumb_percent
1391 },
1392 ),
1393 );
1394
1395 // NOTE: Space not taken by track bounds divided by text units not on screen
1396 let text_unit_size = axis_pair(
1397 thumb_size
1398 .horizontal
1399 .zip(track_bounds.horizontal)
1400 .zip(total_text_units.horizontal)
1401 .map(|((thumb_size, track_bounds), total_text_units)| {
1402 (track_bounds.size.width - thumb_size)
1403 / (total_text_units - text_units_per_page.horizontal).max(0.)
1404 }),
1405 thumb_size
1406 .vertical
1407 .zip(track_bounds.vertical)
1408 .zip(total_text_units.vertical)
1409 .map(|((thumb_size, track_bounds), total_text_units)| {
1410 (track_bounds.size.height - thumb_size)
1411 / (total_text_units - text_units_per_page.vertical).max(0.)
1412 }),
1413 );
1414
1415 let horizontal_scrollbar = track_bounds
1416 .horizontal
1417 .zip(visible_range.horizontal)
1418 .zip(text_unit_size.horizontal)
1419 .zip(thumb_size.horizontal)
1420 .map(
1421 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1422 hitbox: window.insert_hitbox(track_bounds, false),
1423 visible_range,
1424 text_unit_size,
1425 visible: show_scrollbars,
1426 thumb_size,
1427 axis: Axis::Horizontal,
1428 },
1429 );
1430
1431 let vertical_scrollbar = track_bounds
1432 .vertical
1433 .zip(visible_range.vertical)
1434 .zip(text_unit_size.vertical)
1435 .zip(thumb_size.vertical)
1436 .map(
1437 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1438 hitbox: window.insert_hitbox(track_bounds, false),
1439 visible_range,
1440 text_unit_size,
1441 visible: show_scrollbars,
1442 thumb_size,
1443 axis: Axis::Vertical,
1444 },
1445 );
1446
1447 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1448 }
1449
1450 #[allow(clippy::too_many_arguments)]
1451 fn prepaint_crease_toggles(
1452 &self,
1453 crease_toggles: &mut [Option<AnyElement>],
1454 line_height: Pixels,
1455 gutter_dimensions: &GutterDimensions,
1456 gutter_settings: crate::editor_settings::Gutter,
1457 scroll_pixel_position: gpui::Point<Pixels>,
1458 gutter_hitbox: &Hitbox,
1459 window: &mut Window,
1460 cx: &mut App,
1461 ) {
1462 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1463 if let Some(crease_toggle) = crease_toggle {
1464 debug_assert!(gutter_settings.folds);
1465 let available_space = size(
1466 AvailableSpace::MinContent,
1467 AvailableSpace::Definite(line_height * 0.55),
1468 );
1469 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1470
1471 let position = point(
1472 gutter_dimensions.width - gutter_dimensions.right_padding,
1473 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1474 );
1475 let centering_offset = point(
1476 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1477 (line_height - crease_toggle_size.height) / 2.,
1478 );
1479 let origin = gutter_hitbox.origin + position + centering_offset;
1480 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1481 }
1482 }
1483 }
1484
1485 #[allow(clippy::too_many_arguments)]
1486 fn prepaint_crease_trailers(
1487 &self,
1488 trailers: Vec<Option<AnyElement>>,
1489 lines: &[LineWithInvisibles],
1490 line_height: Pixels,
1491 content_origin: gpui::Point<Pixels>,
1492 scroll_pixel_position: gpui::Point<Pixels>,
1493 em_width: Pixels,
1494 window: &mut Window,
1495 cx: &mut App,
1496 ) -> Vec<Option<CreaseTrailerLayout>> {
1497 trailers
1498 .into_iter()
1499 .enumerate()
1500 .map(|(ix, element)| {
1501 let mut element = element?;
1502 let available_space = size(
1503 AvailableSpace::MinContent,
1504 AvailableSpace::Definite(line_height),
1505 );
1506 let size = element.layout_as_root(available_space, window, cx);
1507
1508 let line = &lines[ix];
1509 let padding = if line.width == Pixels::ZERO {
1510 Pixels::ZERO
1511 } else {
1512 4. * em_width
1513 };
1514 let position = point(
1515 scroll_pixel_position.x + line.width + padding,
1516 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1517 );
1518 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1519 let origin = content_origin + position + centering_offset;
1520 element.prepaint_as_root(origin, available_space, window, cx);
1521 Some(CreaseTrailerLayout {
1522 element,
1523 bounds: Bounds::new(origin, size),
1524 })
1525 })
1526 .collect()
1527 }
1528
1529 // Folds contained in a hunk are ignored apart from shrinking visual size
1530 // If a fold contains any hunks then that fold line is marked as modified
1531 fn layout_gutter_diff_hunks(
1532 &self,
1533 line_height: Pixels,
1534 gutter_hitbox: &Hitbox,
1535 display_rows: Range<DisplayRow>,
1536 snapshot: &EditorSnapshot,
1537 window: &mut Window,
1538 cx: &mut App,
1539 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1540 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1541 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1542
1543 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1544 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1545
1546 for hunk in snapshot
1547 .buffer_snapshot
1548 .diff_hunks_in_range(buffer_start..buffer_end)
1549 {
1550 if folded_buffers.contains(&hunk.buffer_id) {
1551 continue;
1552 }
1553
1554 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1555 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1556
1557 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1558 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1559
1560 let display_hunk = if hunk_display_start.column() != 0 {
1561 DisplayDiffHunk::Folded {
1562 display_row: hunk_display_start.row(),
1563 }
1564 } else {
1565 let mut end_row = hunk_display_end.row();
1566 if hunk_display_end.column() > 0 {
1567 end_row.0 += 1;
1568 }
1569 DisplayDiffHunk::Unfolded {
1570 status: hunk.status(),
1571 diff_base_byte_range: hunk.diff_base_byte_range,
1572 display_row_range: hunk_display_start.row()..end_row,
1573 multi_buffer_range: Anchor::range_in_buffer(
1574 hunk.excerpt_id,
1575 hunk.buffer_id,
1576 hunk.buffer_range,
1577 ),
1578 }
1579 };
1580
1581 display_hunks.push((display_hunk, None));
1582 }
1583
1584 let git_gutter_setting = ProjectSettings::get_global(cx)
1585 .git
1586 .git_gutter
1587 .unwrap_or_default();
1588 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1589 for (hunk, hitbox) in &mut display_hunks {
1590 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1591 let hunk_bounds =
1592 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1593 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1594 }
1595 }
1596 }
1597
1598 display_hunks
1599 }
1600
1601 #[allow(clippy::too_many_arguments)]
1602 fn layout_inline_blame(
1603 &self,
1604 display_row: DisplayRow,
1605 row_info: &RowInfo,
1606 line_layout: &LineWithInvisibles,
1607 crease_trailer: Option<&CreaseTrailerLayout>,
1608 em_width: Pixels,
1609 content_origin: gpui::Point<Pixels>,
1610 scroll_pixel_position: gpui::Point<Pixels>,
1611 line_height: Pixels,
1612 window: &mut Window,
1613 cx: &mut App,
1614 ) -> Option<AnyElement> {
1615 if !self
1616 .editor
1617 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1618 {
1619 return None;
1620 }
1621
1622 let workspace = self
1623 .editor
1624 .read(cx)
1625 .workspace
1626 .as_ref()
1627 .map(|(w, _)| w.clone());
1628
1629 let editor = self.editor.read(cx);
1630 let blame = editor.blame.clone()?;
1631 let padding = {
1632 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1633 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1634
1635 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1636
1637 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1638 match &inline_completion.completion {
1639 InlineCompletion::Edit {
1640 display_mode: EditDisplayMode::TabAccept,
1641 ..
1642 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1643 _ => {}
1644 }
1645 }
1646
1647 padding * em_width
1648 };
1649
1650 let blame_entry = blame
1651 .update(cx, |blame, cx| {
1652 blame.blame_for_rows(&[*row_info], cx).next()
1653 })
1654 .flatten()?;
1655
1656 let mut element =
1657 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1658
1659 let start_y = content_origin.y
1660 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1661
1662 let start_x = {
1663 let line_end = if let Some(crease_trailer) = crease_trailer {
1664 crease_trailer.bounds.right()
1665 } else {
1666 content_origin.x - scroll_pixel_position.x + line_layout.width
1667 };
1668
1669 let padded_line_end = line_end + padding;
1670
1671 let min_column_in_pixels = ProjectSettings::get_global(cx)
1672 .git
1673 .inline_blame
1674 .and_then(|settings| settings.min_column)
1675 .map(|col| self.column_pixels(col as usize, window, cx))
1676 .unwrap_or(px(0.));
1677 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1678
1679 cmp::max(padded_line_end, min_start)
1680 };
1681
1682 let absolute_offset = point(start_x, start_y);
1683 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1684
1685 Some(element)
1686 }
1687
1688 #[allow(clippy::too_many_arguments)]
1689 fn layout_blame_entries(
1690 &self,
1691 buffer_rows: &[RowInfo],
1692 em_width: Pixels,
1693 scroll_position: gpui::Point<f32>,
1694 line_height: Pixels,
1695 gutter_hitbox: &Hitbox,
1696 max_width: Option<Pixels>,
1697 window: &mut Window,
1698 cx: &mut App,
1699 ) -> Option<Vec<AnyElement>> {
1700 if !self
1701 .editor
1702 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1703 {
1704 return None;
1705 }
1706
1707 let blame = self.editor.read(cx).blame.clone()?;
1708 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1709 blame.blame_for_rows(buffer_rows, cx).collect()
1710 });
1711
1712 let width = if let Some(max_width) = max_width {
1713 AvailableSpace::Definite(max_width)
1714 } else {
1715 AvailableSpace::MaxContent
1716 };
1717 let scroll_top = scroll_position.y * line_height;
1718 let start_x = em_width;
1719
1720 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1721
1722 let shaped_lines = blamed_rows
1723 .into_iter()
1724 .enumerate()
1725 .flat_map(|(ix, blame_entry)| {
1726 if let Some(blame_entry) = blame_entry {
1727 let mut element = render_blame_entry(
1728 ix,
1729 &blame,
1730 blame_entry,
1731 &self.style,
1732 &mut last_used_color,
1733 self.editor.clone(),
1734 cx,
1735 );
1736
1737 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1738 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1739
1740 element.prepaint_as_root(
1741 absolute_offset,
1742 size(width, AvailableSpace::MinContent),
1743 window,
1744 cx,
1745 );
1746
1747 Some(element)
1748 } else {
1749 None
1750 }
1751 })
1752 .collect();
1753
1754 Some(shaped_lines)
1755 }
1756
1757 #[allow(clippy::too_many_arguments)]
1758 fn layout_indent_guides(
1759 &self,
1760 content_origin: gpui::Point<Pixels>,
1761 text_origin: gpui::Point<Pixels>,
1762 visible_buffer_range: Range<MultiBufferRow>,
1763 scroll_pixel_position: gpui::Point<Pixels>,
1764 line_height: Pixels,
1765 snapshot: &DisplaySnapshot,
1766 window: &mut Window,
1767 cx: &mut App,
1768 ) -> Option<Vec<IndentGuideLayout>> {
1769 let indent_guides = self.editor.update(cx, |editor, cx| {
1770 editor.indent_guides(visible_buffer_range, snapshot, cx)
1771 })?;
1772
1773 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1774 editor
1775 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1776 .unwrap_or_default()
1777 });
1778
1779 Some(
1780 indent_guides
1781 .into_iter()
1782 .enumerate()
1783 .filter_map(|(i, indent_guide)| {
1784 let single_indent_width =
1785 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1786 let total_width = single_indent_width * indent_guide.depth as f32;
1787 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1788 if start_x >= text_origin.x {
1789 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1790 indent_guide.start_row..indent_guide.end_row,
1791 line_height,
1792 snapshot,
1793 );
1794
1795 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1796
1797 Some(IndentGuideLayout {
1798 origin: point(start_x, start_y),
1799 length,
1800 single_indent_width,
1801 depth: indent_guide.depth,
1802 active: active_indent_guide_indices.contains(&i),
1803 settings: indent_guide.settings,
1804 })
1805 } else {
1806 None
1807 }
1808 })
1809 .collect(),
1810 )
1811 }
1812
1813 fn calculate_indent_guide_bounds(
1814 row_range: Range<MultiBufferRow>,
1815 line_height: Pixels,
1816 snapshot: &DisplaySnapshot,
1817 ) -> (gpui::Pixels, gpui::Pixels) {
1818 let start_point = Point::new(row_range.start.0, 0);
1819 let end_point = Point::new(row_range.end.0, 0);
1820
1821 let row_range = start_point.to_display_point(snapshot).row()
1822 ..end_point.to_display_point(snapshot).row();
1823
1824 let mut prev_line = start_point;
1825 prev_line.row = prev_line.row.saturating_sub(1);
1826 let prev_line = prev_line.to_display_point(snapshot).row();
1827
1828 let mut cons_line = end_point;
1829 cons_line.row += 1;
1830 let cons_line = cons_line.to_display_point(snapshot).row();
1831
1832 let mut offset_y = row_range.start.0 as f32 * line_height;
1833 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1834
1835 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1836 if row_range.end == cons_line {
1837 length += line_height;
1838 }
1839
1840 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1841 // we want to extend the indent guide to the start of the block.
1842 let mut block_height = 0;
1843 let mut block_offset = 0;
1844 let mut found_excerpt_header = false;
1845 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1846 if matches!(block, Block::ExcerptBoundary { .. }) {
1847 found_excerpt_header = true;
1848 break;
1849 }
1850 block_offset += block.height();
1851 block_height += block.height();
1852 }
1853 if !found_excerpt_header {
1854 offset_y -= block_offset as f32 * line_height;
1855 length += block_height as f32 * line_height;
1856 }
1857
1858 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1859 // we want to ensure that the indent guide stops before the excerpt header.
1860 let mut block_height = 0;
1861 let mut found_excerpt_header = false;
1862 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1863 if matches!(block, Block::ExcerptBoundary { .. }) {
1864 found_excerpt_header = true;
1865 }
1866 block_height += block.height();
1867 }
1868 if found_excerpt_header {
1869 length -= block_height as f32 * line_height;
1870 }
1871
1872 (offset_y, length)
1873 }
1874
1875 #[allow(clippy::too_many_arguments)]
1876 fn layout_run_indicators(
1877 &self,
1878 line_height: Pixels,
1879 range: Range<DisplayRow>,
1880 scroll_pixel_position: gpui::Point<Pixels>,
1881 gutter_dimensions: &GutterDimensions,
1882 gutter_hitbox: &Hitbox,
1883 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1884 snapshot: &EditorSnapshot,
1885 window: &mut Window,
1886 cx: &mut App,
1887 ) -> Vec<AnyElement> {
1888 self.editor.update(cx, |editor, cx| {
1889 let active_task_indicator_row =
1890 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1891 deployed_from_indicator,
1892 actions,
1893 ..
1894 })) = editor.context_menu.borrow().as_ref()
1895 {
1896 actions
1897 .tasks
1898 .as_ref()
1899 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1900 .or(*deployed_from_indicator)
1901 } else {
1902 None
1903 };
1904
1905 let offset_range_start = snapshot
1906 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1907 .to_offset(&snapshot.buffer_snapshot);
1908 let offset_range_end = snapshot
1909 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1910 .to_offset(&snapshot.buffer_snapshot);
1911
1912 editor
1913 .tasks
1914 .iter()
1915 .filter_map(|(_, tasks)| {
1916 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1917 return None;
1918 }
1919 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1920 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1921 let buffer_folded = snapshot
1922 .buffer_snapshot
1923 .buffer_line_for_row(multibuffer_row)
1924 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1925 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
1926 .unwrap_or(false);
1927 if buffer_folded {
1928 return None;
1929 }
1930
1931 if snapshot.is_line_folded(multibuffer_row) {
1932 // Skip folded indicators, unless it's the starting line of a fold.
1933 if multibuffer_row
1934 .0
1935 .checked_sub(1)
1936 .map_or(false, |previous_row| {
1937 snapshot.is_line_folded(MultiBufferRow(previous_row))
1938 })
1939 {
1940 return None;
1941 }
1942 }
1943 let display_row = multibuffer_point.to_display_point(snapshot).row();
1944 let button = editor.render_run_indicator(
1945 &self.style,
1946 Some(display_row) == active_task_indicator_row,
1947 display_row,
1948 cx,
1949 );
1950
1951 let button = prepaint_gutter_button(
1952 button,
1953 display_row,
1954 line_height,
1955 gutter_dimensions,
1956 scroll_pixel_position,
1957 gutter_hitbox,
1958 rows_with_hunk_bounds,
1959 window,
1960 cx,
1961 );
1962 Some(button)
1963 })
1964 .collect_vec()
1965 })
1966 }
1967
1968 #[allow(clippy::too_many_arguments)]
1969 fn layout_code_actions_indicator(
1970 &self,
1971 line_height: Pixels,
1972 newest_selection_head: DisplayPoint,
1973 scroll_pixel_position: gpui::Point<Pixels>,
1974 gutter_dimensions: &GutterDimensions,
1975 gutter_hitbox: &Hitbox,
1976 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1977 window: &mut Window,
1978 cx: &mut App,
1979 ) -> Option<AnyElement> {
1980 let mut active = false;
1981 let mut button = None;
1982 let row = newest_selection_head.row();
1983 self.editor.update(cx, |editor, cx| {
1984 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1985 deployed_from_indicator,
1986 ..
1987 })) = editor.context_menu.borrow().as_ref()
1988 {
1989 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1990 };
1991 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1992 });
1993
1994 let button = prepaint_gutter_button(
1995 button?,
1996 row,
1997 line_height,
1998 gutter_dimensions,
1999 scroll_pixel_position,
2000 gutter_hitbox,
2001 rows_with_hunk_bounds,
2002 window,
2003 cx,
2004 );
2005
2006 Some(button)
2007 }
2008
2009 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2010 if let Some(index) = participant_index {
2011 cx.theme().players().color_for_participant(index.0)
2012 } else {
2013 cx.theme().players().absent()
2014 }
2015 }
2016
2017 fn calculate_relative_line_numbers(
2018 &self,
2019 snapshot: &EditorSnapshot,
2020 rows: &Range<DisplayRow>,
2021 relative_to: Option<DisplayRow>,
2022 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2023 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2024 let Some(relative_to) = relative_to else {
2025 return relative_rows;
2026 };
2027
2028 let start = rows.start.min(relative_to);
2029 let end = rows.end.max(relative_to);
2030
2031 let buffer_rows = snapshot
2032 .row_infos(start)
2033 .take(1 + end.minus(start) as usize)
2034 .collect::<Vec<_>>();
2035
2036 let head_idx = relative_to.minus(start);
2037 let mut delta = 1;
2038 let mut i = head_idx + 1;
2039 while i < buffer_rows.len() as u32 {
2040 if buffer_rows[i as usize].buffer_row.is_some() {
2041 if rows.contains(&DisplayRow(i + start.0)) {
2042 relative_rows.insert(DisplayRow(i + start.0), delta);
2043 }
2044 delta += 1;
2045 }
2046 i += 1;
2047 }
2048 delta = 1;
2049 i = head_idx.min(buffer_rows.len() as u32 - 1);
2050 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2051 i -= 1;
2052 }
2053
2054 while i > 0 {
2055 i -= 1;
2056 if buffer_rows[i as usize].buffer_row.is_some() {
2057 if rows.contains(&DisplayRow(i + start.0)) {
2058 relative_rows.insert(DisplayRow(i + start.0), delta);
2059 }
2060 delta += 1;
2061 }
2062 }
2063
2064 relative_rows
2065 }
2066
2067 #[allow(clippy::too_many_arguments)]
2068 fn layout_line_numbers(
2069 &self,
2070 gutter_hitbox: Option<&Hitbox>,
2071 gutter_dimensions: GutterDimensions,
2072 line_height: Pixels,
2073 scroll_position: gpui::Point<f32>,
2074 rows: Range<DisplayRow>,
2075 buffer_rows: &[RowInfo],
2076 newest_selection_head: Option<DisplayPoint>,
2077 snapshot: &EditorSnapshot,
2078 window: &mut Window,
2079 cx: &mut App,
2080 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2081 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2082 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2083 });
2084 if !include_line_numbers {
2085 return Arc::default();
2086 }
2087
2088 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2089 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2090 let newest = editor.selections.newest::<Point>(cx);
2091 SelectionLayout::new(
2092 newest,
2093 editor.selections.line_mode,
2094 editor.cursor_shape,
2095 &snapshot.display_snapshot,
2096 true,
2097 true,
2098 None,
2099 )
2100 .head
2101 });
2102 let is_relative = editor.should_use_relative_line_numbers(cx);
2103 (newest_selection_head, is_relative)
2104 });
2105
2106 let relative_to = if is_relative {
2107 Some(newest_selection_head.row())
2108 } else {
2109 None
2110 };
2111 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2112 let mut line_number = String::new();
2113 let line_numbers = buffer_rows
2114 .into_iter()
2115 .enumerate()
2116 .flat_map(|(ix, row_info)| {
2117 let display_row = DisplayRow(rows.start.0 + ix as u32);
2118 line_number.clear();
2119 let non_relative_number = row_info.buffer_row? + 1;
2120 let number = relative_rows
2121 .get(&display_row)
2122 .unwrap_or(&non_relative_number);
2123 write!(&mut line_number, "{number}").unwrap();
2124 if matches!(row_info.diff_status, Some(DiffHunkStatus::Removed(_))) {
2125 return None;
2126 }
2127
2128 let color = cx.theme().colors().editor_line_number;
2129 let shaped_line = self
2130 .shape_line_number(SharedString::from(&line_number), color, window)
2131 .log_err()?;
2132 let scroll_top = scroll_position.y * line_height;
2133 let line_origin = gutter_hitbox.map(|hitbox| {
2134 hitbox.origin
2135 + point(
2136 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2137 ix as f32 * line_height - (scroll_top % line_height),
2138 )
2139 });
2140
2141 #[cfg(not(test))]
2142 let hitbox = line_origin.map(|line_origin| {
2143 window.insert_hitbox(
2144 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2145 false,
2146 )
2147 });
2148 #[cfg(test)]
2149 let hitbox = {
2150 let _ = line_origin;
2151 None
2152 };
2153
2154 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2155 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2156 let line_number = LineNumberLayout {
2157 shaped_line,
2158 hitbox,
2159 display_row,
2160 };
2161 Some((multi_buffer_row, line_number))
2162 })
2163 .collect();
2164 Arc::new(line_numbers)
2165 }
2166
2167 fn layout_crease_toggles(
2168 &self,
2169 rows: Range<DisplayRow>,
2170 row_infos: &[RowInfo],
2171 active_rows: &BTreeMap<DisplayRow, bool>,
2172 snapshot: &EditorSnapshot,
2173 window: &mut Window,
2174 cx: &mut App,
2175 ) -> Vec<Option<AnyElement>> {
2176 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2177 && snapshot.mode == EditorMode::Full
2178 && self.editor.read(cx).is_singleton(cx);
2179 if include_fold_statuses {
2180 row_infos
2181 .into_iter()
2182 .enumerate()
2183 .map(|(ix, info)| {
2184 let row = info.multibuffer_row?;
2185 let display_row = DisplayRow(rows.start.0 + ix as u32);
2186 let active = active_rows.contains_key(&display_row);
2187
2188 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2189 })
2190 .collect()
2191 } else {
2192 Vec::new()
2193 }
2194 }
2195
2196 fn layout_crease_trailers(
2197 &self,
2198 buffer_rows: impl IntoIterator<Item = RowInfo>,
2199 snapshot: &EditorSnapshot,
2200 window: &mut Window,
2201 cx: &mut App,
2202 ) -> Vec<Option<AnyElement>> {
2203 buffer_rows
2204 .into_iter()
2205 .map(|row_info| {
2206 if let Some(row) = row_info.multibuffer_row {
2207 snapshot.render_crease_trailer(row, window, cx)
2208 } else {
2209 None
2210 }
2211 })
2212 .collect()
2213 }
2214
2215 fn layout_lines(
2216 rows: Range<DisplayRow>,
2217 snapshot: &EditorSnapshot,
2218 style: &EditorStyle,
2219 editor_width: Pixels,
2220 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2221 window: &mut Window,
2222 cx: &mut App,
2223 ) -> Vec<LineWithInvisibles> {
2224 if rows.start >= rows.end {
2225 return Vec::new();
2226 }
2227
2228 // Show the placeholder when the editor is empty
2229 if snapshot.is_empty() {
2230 let font_size = style.text.font_size.to_pixels(window.rem_size());
2231 let placeholder_color = cx.theme().colors().text_placeholder;
2232 let placeholder_text = snapshot.placeholder_text();
2233
2234 let placeholder_lines = placeholder_text
2235 .as_ref()
2236 .map_or("", AsRef::as_ref)
2237 .split('\n')
2238 .skip(rows.start.0 as usize)
2239 .chain(iter::repeat(""))
2240 .take(rows.len());
2241 placeholder_lines
2242 .filter_map(move |line| {
2243 let run = TextRun {
2244 len: line.len(),
2245 font: style.text.font(),
2246 color: placeholder_color,
2247 background_color: None,
2248 underline: Default::default(),
2249 strikethrough: None,
2250 };
2251 window
2252 .text_system()
2253 .shape_line(line.to_string().into(), font_size, &[run])
2254 .log_err()
2255 })
2256 .map(|line| LineWithInvisibles {
2257 width: line.width,
2258 len: line.len,
2259 fragments: smallvec![LineFragment::Text(line)],
2260 invisibles: Vec::new(),
2261 font_size,
2262 })
2263 .collect()
2264 } else {
2265 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2266 LineWithInvisibles::from_chunks(
2267 chunks,
2268 &style,
2269 MAX_LINE_LEN,
2270 rows.len(),
2271 snapshot.mode,
2272 editor_width,
2273 is_row_soft_wrapped,
2274 window,
2275 cx,
2276 )
2277 }
2278 }
2279
2280 #[allow(clippy::too_many_arguments)]
2281 fn prepaint_lines(
2282 &self,
2283 start_row: DisplayRow,
2284 line_layouts: &mut [LineWithInvisibles],
2285 line_height: Pixels,
2286 scroll_pixel_position: gpui::Point<Pixels>,
2287 content_origin: gpui::Point<Pixels>,
2288 window: &mut Window,
2289 cx: &mut App,
2290 ) -> SmallVec<[AnyElement; 1]> {
2291 let mut line_elements = SmallVec::new();
2292 for (ix, line) in line_layouts.iter_mut().enumerate() {
2293 let row = start_row + DisplayRow(ix as u32);
2294 line.prepaint(
2295 line_height,
2296 scroll_pixel_position,
2297 row,
2298 content_origin,
2299 &mut line_elements,
2300 window,
2301 cx,
2302 );
2303 }
2304 line_elements
2305 }
2306
2307 #[allow(clippy::too_many_arguments)]
2308 fn render_block(
2309 &self,
2310 block: &Block,
2311 available_width: AvailableSpace,
2312 block_id: BlockId,
2313 block_row_start: DisplayRow,
2314 snapshot: &EditorSnapshot,
2315 text_x: Pixels,
2316 rows: &Range<DisplayRow>,
2317 line_layouts: &[LineWithInvisibles],
2318 gutter_dimensions: &GutterDimensions,
2319 line_height: Pixels,
2320 em_width: Pixels,
2321 text_hitbox: &Hitbox,
2322 editor_width: Pixels,
2323 scroll_width: &mut Pixels,
2324 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2325 selections: &[Selection<Point>],
2326 selected_buffer_ids: &Vec<BufferId>,
2327 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2328 sticky_header_excerpt_id: Option<ExcerptId>,
2329 window: &mut Window,
2330 cx: &mut App,
2331 ) -> (AnyElement, Size<Pixels>) {
2332 let mut element = match block {
2333 Block::Custom(block) => {
2334 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2335 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2336 let align_to = block_start.to_display_point(snapshot);
2337 let anchor_x = text_x
2338 + if rows.contains(&align_to.row()) {
2339 line_layouts[align_to.row().minus(rows.start) as usize]
2340 .x_for_index(align_to.column() as usize)
2341 } else {
2342 layout_line(
2343 align_to.row(),
2344 snapshot,
2345 &self.style,
2346 editor_width,
2347 is_row_soft_wrapped,
2348 window,
2349 cx,
2350 )
2351 .x_for_index(align_to.column() as usize)
2352 };
2353
2354 let selected = selections
2355 .binary_search_by(|selection| {
2356 if selection.end <= block_start {
2357 Ordering::Less
2358 } else if selection.start >= block_end {
2359 Ordering::Greater
2360 } else {
2361 Ordering::Equal
2362 }
2363 })
2364 .is_ok();
2365
2366 div()
2367 .size_full()
2368 .child(block.render(&mut BlockContext {
2369 window,
2370 app: cx,
2371 anchor_x,
2372 gutter_dimensions,
2373 line_height,
2374 em_width,
2375 block_id,
2376 selected,
2377 max_width: text_hitbox.size.width.max(*scroll_width),
2378 editor_style: &self.style,
2379 }))
2380 .into_any()
2381 }
2382
2383 Block::FoldedBuffer {
2384 first_excerpt,
2385 prev_excerpt,
2386 show_excerpt_controls,
2387 height,
2388 } => {
2389 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2390 let mut result = v_flex().id(block_id).w_full();
2391
2392 if let Some(prev_excerpt) = prev_excerpt {
2393 if *show_excerpt_controls {
2394 result = result.child(self.render_expand_excerpt_control(
2395 block_id,
2396 ExpandExcerptDirection::Down,
2397 prev_excerpt.id,
2398 gutter_dimensions,
2399 window,
2400 cx,
2401 ));
2402 }
2403 }
2404
2405 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2406 result
2407 .child(self.render_buffer_header(
2408 first_excerpt,
2409 true,
2410 selected,
2411 jump_data,
2412 window,
2413 cx,
2414 ))
2415 .into_any_element()
2416 }
2417
2418 Block::ExcerptBoundary {
2419 prev_excerpt,
2420 next_excerpt,
2421 show_excerpt_controls,
2422 height,
2423 starts_new_buffer,
2424 } => {
2425 let color = cx.theme().colors().clone();
2426 let mut result = v_flex().id(block_id).w_full();
2427
2428 if let Some(prev_excerpt) = prev_excerpt {
2429 if *show_excerpt_controls {
2430 result = result.child(self.render_expand_excerpt_control(
2431 block_id,
2432 ExpandExcerptDirection::Down,
2433 prev_excerpt.id,
2434 gutter_dimensions,
2435 window,
2436 cx,
2437 ));
2438 }
2439 }
2440
2441 if let Some(next_excerpt) = next_excerpt {
2442 let jump_data =
2443 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2444
2445 if *starts_new_buffer {
2446 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2447 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2448
2449 result = result.child(self.render_buffer_header(
2450 next_excerpt,
2451 false,
2452 selected,
2453 jump_data,
2454 window,
2455 cx,
2456 ));
2457 } else {
2458 result = result
2459 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2460 }
2461
2462 if *show_excerpt_controls {
2463 result = result.child(self.render_expand_excerpt_control(
2464 block_id,
2465 ExpandExcerptDirection::Up,
2466 next_excerpt.id,
2467 gutter_dimensions,
2468 window,
2469 cx,
2470 ));
2471 }
2472 } else {
2473 if *show_excerpt_controls {
2474 result = result.child(
2475 h_flex()
2476 .relative()
2477 .child(
2478 div()
2479 .top(px(0.))
2480 .absolute()
2481 .w_full()
2482 .h_px()
2483 .bg(color.border_variant),
2484 )
2485 .child(self.render_expand_excerpt_control(
2486 block_id,
2487 ExpandExcerptDirection::Up,
2488 next_excerpt.id,
2489 gutter_dimensions,
2490 window,
2491 cx,
2492 )),
2493 );
2494 }
2495 };
2496 }
2497
2498 result.into_any()
2499 }
2500 };
2501
2502 // Discover the element's content height, then round up to the nearest multiple of line height.
2503 let preliminary_size = element.layout_as_root(
2504 size(available_width, AvailableSpace::MinContent),
2505 window,
2506 cx,
2507 );
2508 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2509 let final_size = if preliminary_size.height == quantized_height {
2510 preliminary_size
2511 } else {
2512 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2513 };
2514
2515 if let BlockId::Custom(custom_block_id) = block_id {
2516 if block.height() > 0 {
2517 let element_height_in_lines =
2518 ((final_size.height / line_height).ceil() as u32).max(1);
2519 if element_height_in_lines != block.height() {
2520 resized_blocks.insert(custom_block_id, element_height_in_lines);
2521 }
2522 }
2523 }
2524
2525 (element, final_size)
2526 }
2527
2528 fn render_buffer_header(
2529 &self,
2530 for_excerpt: &ExcerptInfo,
2531 is_folded: bool,
2532 is_selected: bool,
2533 jump_data: JumpData,
2534 window: &mut Window,
2535 cx: &mut App,
2536 ) -> Div {
2537 let include_root = self
2538 .editor
2539 .read(cx)
2540 .project
2541 .as_ref()
2542 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2543 .unwrap_or_default();
2544 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2545 let filename = path
2546 .as_ref()
2547 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2548 let parent_path = path.as_ref().and_then(|path| {
2549 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2550 });
2551 let focus_handle = self.editor.focus_handle(cx);
2552 let colors = cx.theme().colors();
2553
2554 div()
2555 .px_2()
2556 .pt_2()
2557 .w_full()
2558 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2559 .child(
2560 h_flex()
2561 .size_full()
2562 .gap_2()
2563 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2564 .pl_0p5()
2565 .pr_5()
2566 .rounded_md()
2567 .shadow_md()
2568 .border_1()
2569 .map(|div| {
2570 let border_color = if is_selected && is_folded {
2571 colors.border_focused
2572 } else {
2573 colors.border
2574 };
2575 div.border_color(border_color)
2576 })
2577 .bg(colors.editor_subheader_background)
2578 .hover(|style| style.bg(colors.element_hover))
2579 .map(|header| {
2580 let editor = self.editor.clone();
2581 let buffer_id = for_excerpt.buffer_id;
2582 let toggle_chevron_icon =
2583 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2584 header.child(
2585 div()
2586 .hover(|style| style.bg(colors.element_selected))
2587 .rounded_sm()
2588 .child(
2589 ButtonLike::new("toggle-buffer-fold")
2590 .style(ui::ButtonStyle::Transparent)
2591 .size(ButtonSize::Large)
2592 .width(px(30.).into())
2593 .children(toggle_chevron_icon)
2594 .tooltip({
2595 let focus_handle = focus_handle.clone();
2596 move |window, cx| {
2597 Tooltip::for_action_in(
2598 "Toggle Excerpt Fold",
2599 &ToggleFold,
2600 &focus_handle,
2601 window,
2602 cx,
2603 )
2604 }
2605 })
2606 .on_click(move |_, _, cx| {
2607 if is_folded {
2608 editor.update(cx, |editor, cx| {
2609 editor.unfold_buffer(buffer_id, cx);
2610 });
2611 } else {
2612 editor.update(cx, |editor, cx| {
2613 editor.fold_buffer(buffer_id, cx);
2614 });
2615 }
2616 }),
2617 ),
2618 )
2619 })
2620 .children(
2621 self.editor
2622 .read(cx)
2623 .addons
2624 .values()
2625 .filter_map(|addon| {
2626 addon.render_buffer_header_controls(for_excerpt, window, cx)
2627 })
2628 .take(1),
2629 )
2630 .child(
2631 h_flex()
2632 .cursor_pointer()
2633 .id("path header block")
2634 .size_full()
2635 .justify_between()
2636 .child(
2637 h_flex()
2638 .gap_2()
2639 .child(
2640 filename
2641 .map(SharedString::from)
2642 .unwrap_or_else(|| "untitled".into()),
2643 )
2644 .when_some(parent_path, |then, path| {
2645 then.child(div().child(path).text_color(colors.text_muted))
2646 }),
2647 )
2648 .when(is_selected, |el| {
2649 el.child(
2650 h_flex()
2651 .id("jump-to-file-button")
2652 .gap_2p5()
2653 .child(Label::new("Jump To File"))
2654 .children(
2655 KeyBinding::for_action_in(
2656 &OpenExcerpts,
2657 &focus_handle,
2658 window,
2659 )
2660 .map(|binding| binding.into_any_element()),
2661 ),
2662 )
2663 })
2664 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2665 .on_click(window.listener_for(&self.editor, {
2666 move |editor, e: &ClickEvent, window, cx| {
2667 editor.open_excerpts_common(
2668 Some(jump_data.clone()),
2669 e.down.modifiers.secondary(),
2670 window,
2671 cx,
2672 );
2673 }
2674 })),
2675 ),
2676 )
2677 }
2678
2679 fn render_expand_excerpt_control(
2680 &self,
2681 block_id: BlockId,
2682 direction: ExpandExcerptDirection,
2683 excerpt_id: ExcerptId,
2684 gutter_dimensions: &GutterDimensions,
2685 window: &Window,
2686 cx: &mut App,
2687 ) -> impl IntoElement {
2688 let color = cx.theme().colors().clone();
2689 let hover_color = color.border_variant.opacity(0.5);
2690 let focus_handle = self.editor.focus_handle(cx).clone();
2691
2692 let icon_offset =
2693 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2694 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2695 let group_name = if direction == ExpandExcerptDirection::Down {
2696 "expand-down"
2697 } else {
2698 "expand-up"
2699 };
2700
2701 let expand_area = |id: SharedString| {
2702 h_flex()
2703 .id(id)
2704 .w_full()
2705 .cursor_pointer()
2706 .block_mouse_down()
2707 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2708 .hover(|style| style.bg(hover_color))
2709 .tooltip({
2710 let focus_handle = focus_handle.clone();
2711 move |window, cx| {
2712 Tooltip::for_action_in(
2713 "Expand Excerpt",
2714 &ExpandExcerpts { lines: 0 },
2715 &focus_handle,
2716 window,
2717 cx,
2718 )
2719 }
2720 })
2721 };
2722
2723 expand_area(
2724 format!(
2725 "block-{}-{}",
2726 block_id,
2727 if direction == ExpandExcerptDirection::Down {
2728 "down"
2729 } else {
2730 "up"
2731 }
2732 )
2733 .into(),
2734 )
2735 .group(group_name)
2736 .child(
2737 h_flex()
2738 .w(icon_offset)
2739 .h(header_height)
2740 .flex_none()
2741 .justify_end()
2742 .child(
2743 ButtonLike::new("expand-icon")
2744 .style(ButtonStyle::Transparent)
2745 .child(
2746 svg()
2747 .path(if direction == ExpandExcerptDirection::Down {
2748 IconName::ArrowDownFromLine.path()
2749 } else {
2750 IconName::ArrowUpFromLine.path()
2751 })
2752 .size(IconSize::XSmall.rems())
2753 .text_color(cx.theme().colors().editor_line_number)
2754 .group_hover(group_name, |style| {
2755 style.text_color(cx.theme().colors().editor_active_line_number)
2756 }),
2757 ),
2758 ),
2759 )
2760 .on_click(window.listener_for(&self.editor, {
2761 move |editor, _, _, cx| {
2762 editor.expand_excerpt(excerpt_id, direction, cx);
2763 cx.stop_propagation();
2764 }
2765 }))
2766 }
2767
2768 #[allow(clippy::too_many_arguments)]
2769 fn render_blocks(
2770 &self,
2771 rows: Range<DisplayRow>,
2772 snapshot: &EditorSnapshot,
2773 hitbox: &Hitbox,
2774 text_hitbox: &Hitbox,
2775 editor_width: Pixels,
2776 scroll_width: &mut Pixels,
2777 gutter_dimensions: &GutterDimensions,
2778 em_width: Pixels,
2779 text_x: Pixels,
2780 line_height: Pixels,
2781 line_layouts: &[LineWithInvisibles],
2782 selections: &[Selection<Point>],
2783 selected_buffer_ids: &Vec<BufferId>,
2784 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2785 sticky_header_excerpt_id: Option<ExcerptId>,
2786 window: &mut Window,
2787 cx: &mut App,
2788 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2789 let (fixed_blocks, non_fixed_blocks) = snapshot
2790 .blocks_in_range(rows.clone())
2791 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2792
2793 let mut focused_block = self
2794 .editor
2795 .update(cx, |editor, _| editor.take_focused_block());
2796 let mut fixed_block_max_width = Pixels::ZERO;
2797 let mut blocks = Vec::new();
2798 let mut resized_blocks = HashMap::default();
2799
2800 for (row, block) in fixed_blocks {
2801 let block_id = block.id();
2802
2803 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2804 focused_block = None;
2805 }
2806
2807 let (element, element_size) = self.render_block(
2808 block,
2809 AvailableSpace::MinContent,
2810 block_id,
2811 row,
2812 snapshot,
2813 text_x,
2814 &rows,
2815 line_layouts,
2816 gutter_dimensions,
2817 line_height,
2818 em_width,
2819 text_hitbox,
2820 editor_width,
2821 scroll_width,
2822 &mut resized_blocks,
2823 selections,
2824 selected_buffer_ids,
2825 is_row_soft_wrapped,
2826 sticky_header_excerpt_id,
2827 window,
2828 cx,
2829 );
2830 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2831 blocks.push(BlockLayout {
2832 id: block_id,
2833 row: Some(row),
2834 element,
2835 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2836 style: BlockStyle::Fixed,
2837 });
2838 }
2839
2840 for (row, block) in non_fixed_blocks {
2841 let style = block.style();
2842 let width = match style {
2843 BlockStyle::Sticky => hitbox.size.width,
2844 BlockStyle::Flex => hitbox
2845 .size
2846 .width
2847 .max(fixed_block_max_width)
2848 .max(gutter_dimensions.width + *scroll_width),
2849 BlockStyle::Fixed => unreachable!(),
2850 };
2851 let block_id = block.id();
2852
2853 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2854 focused_block = None;
2855 }
2856
2857 let (element, element_size) = self.render_block(
2858 block,
2859 width.into(),
2860 block_id,
2861 row,
2862 snapshot,
2863 text_x,
2864 &rows,
2865 line_layouts,
2866 gutter_dimensions,
2867 line_height,
2868 em_width,
2869 text_hitbox,
2870 editor_width,
2871 scroll_width,
2872 &mut resized_blocks,
2873 selections,
2874 selected_buffer_ids,
2875 is_row_soft_wrapped,
2876 sticky_header_excerpt_id,
2877 window,
2878 cx,
2879 );
2880
2881 blocks.push(BlockLayout {
2882 id: block_id,
2883 row: Some(row),
2884 element,
2885 available_space: size(width.into(), element_size.height.into()),
2886 style,
2887 });
2888 }
2889
2890 if let Some(focused_block) = focused_block {
2891 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2892 if focus_handle.is_focused(window) {
2893 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2894 let style = block.style();
2895 let width = match style {
2896 BlockStyle::Fixed => AvailableSpace::MinContent,
2897 BlockStyle::Flex => AvailableSpace::Definite(
2898 hitbox
2899 .size
2900 .width
2901 .max(fixed_block_max_width)
2902 .max(gutter_dimensions.width + *scroll_width),
2903 ),
2904 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2905 };
2906
2907 let (element, element_size) = self.render_block(
2908 &block,
2909 width,
2910 focused_block.id,
2911 rows.end,
2912 snapshot,
2913 text_x,
2914 &rows,
2915 line_layouts,
2916 gutter_dimensions,
2917 line_height,
2918 em_width,
2919 text_hitbox,
2920 editor_width,
2921 scroll_width,
2922 &mut resized_blocks,
2923 selections,
2924 selected_buffer_ids,
2925 is_row_soft_wrapped,
2926 sticky_header_excerpt_id,
2927 window,
2928 cx,
2929 );
2930
2931 blocks.push(BlockLayout {
2932 id: block.id(),
2933 row: None,
2934 element,
2935 available_space: size(width, element_size.height.into()),
2936 style,
2937 });
2938 }
2939 }
2940 }
2941 }
2942
2943 if resized_blocks.is_empty() {
2944 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2945 Ok(blocks)
2946 } else {
2947 Err(resized_blocks)
2948 }
2949 }
2950
2951 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2952 /// a restart of rendering for the editor based on the new sizes.
2953 #[allow(clippy::too_many_arguments)]
2954 fn layout_blocks(
2955 &self,
2956 blocks: &mut Vec<BlockLayout>,
2957 block_starts: &mut HashSet<DisplayRow>,
2958 hitbox: &Hitbox,
2959 line_height: Pixels,
2960 scroll_pixel_position: gpui::Point<Pixels>,
2961 window: &mut Window,
2962 cx: &mut App,
2963 ) {
2964 for block in blocks {
2965 let mut origin = if let Some(row) = block.row {
2966 block_starts.insert(row);
2967 hitbox.origin
2968 + point(
2969 Pixels::ZERO,
2970 row.as_f32() * line_height - scroll_pixel_position.y,
2971 )
2972 } else {
2973 // Position the block outside the visible area
2974 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2975 };
2976
2977 if !matches!(block.style, BlockStyle::Sticky) {
2978 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2979 }
2980
2981 let focus_handle =
2982 block
2983 .element
2984 .prepaint_as_root(origin, block.available_space, window, cx);
2985
2986 if let Some(focus_handle) = focus_handle {
2987 self.editor.update(cx, |editor, _cx| {
2988 editor.set_focused_block(FocusedBlock {
2989 id: block.id,
2990 focus_handle: focus_handle.downgrade(),
2991 });
2992 });
2993 }
2994 }
2995 }
2996
2997 #[allow(clippy::too_many_arguments)]
2998 fn layout_sticky_buffer_header(
2999 &self,
3000 StickyHeaderExcerpt {
3001 excerpt,
3002 next_excerpt_controls_present,
3003 next_buffer_row,
3004 }: StickyHeaderExcerpt<'_>,
3005 scroll_position: f32,
3006 line_height: Pixels,
3007 snapshot: &EditorSnapshot,
3008 hitbox: &Hitbox,
3009 selected_buffer_ids: &Vec<BufferId>,
3010 window: &mut Window,
3011 cx: &mut App,
3012 ) -> AnyElement {
3013 let jump_data = header_jump_data(
3014 snapshot,
3015 DisplayRow(scroll_position as u32),
3016 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3017 excerpt,
3018 );
3019
3020 let editor_bg_color = cx.theme().colors().editor_background;
3021
3022 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3023
3024 let mut header = v_flex()
3025 .relative()
3026 .child(
3027 div()
3028 .w(hitbox.bounds.size.width)
3029 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3030 .bg(linear_gradient(
3031 0.,
3032 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3033 linear_color_stop(editor_bg_color, 0.6),
3034 ))
3035 .absolute()
3036 .top_0(),
3037 )
3038 .child(
3039 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3040 .into_any_element(),
3041 )
3042 .into_any_element();
3043
3044 let mut origin = hitbox.origin;
3045
3046 if let Some(next_buffer_row) = next_buffer_row {
3047 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3048
3049 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3050
3051 if next_excerpt_controls_present {
3052 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3053 }
3054
3055 let offset = scroll_position - max_row as f32;
3056
3057 if offset > 0.0 {
3058 origin.y -= Pixels(offset) * line_height;
3059 }
3060 }
3061
3062 let size = size(
3063 AvailableSpace::Definite(hitbox.size.width),
3064 AvailableSpace::MinContent,
3065 );
3066
3067 header.prepaint_as_root(origin, size, window, cx);
3068
3069 header
3070 }
3071
3072 #[allow(clippy::too_many_arguments)]
3073 fn layout_cursor_popovers(
3074 &self,
3075 line_height: Pixels,
3076 text_hitbox: &Hitbox,
3077 content_origin: gpui::Point<Pixels>,
3078 start_row: DisplayRow,
3079 scroll_pixel_position: gpui::Point<Pixels>,
3080 line_layouts: &[LineWithInvisibles],
3081 cursor: DisplayPoint,
3082 cursor_point: Point,
3083 style: &EditorStyle,
3084 window: &mut Window,
3085 cx: &mut App,
3086 ) {
3087 let mut min_menu_height = Pixels::ZERO;
3088 let mut max_menu_height = Pixels::ZERO;
3089 let mut height_above_menu = Pixels::ZERO;
3090 let height_below_menu = Pixels::ZERO;
3091 let mut edit_prediction_popover_visible = false;
3092 let mut context_menu_visible = false;
3093
3094 {
3095 let editor = self.editor.read(cx);
3096 if editor
3097 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3098 {
3099 height_above_menu +=
3100 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3101 edit_prediction_popover_visible = true;
3102 }
3103
3104 if editor.context_menu_visible() {
3105 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3106 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3107 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3108 context_menu_visible = true;
3109 }
3110 }
3111 }
3112
3113 let visible = edit_prediction_popover_visible || context_menu_visible;
3114 if !visible {
3115 return;
3116 }
3117
3118 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3119 let target_position = content_origin
3120 + gpui::Point {
3121 x: cmp::max(
3122 px(0.),
3123 cursor_row_layout.x_for_index(cursor.column() as usize)
3124 - scroll_pixel_position.x,
3125 ),
3126 y: cmp::max(
3127 px(0.),
3128 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3129 ),
3130 };
3131
3132 let viewport_bounds =
3133 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3134 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3135 ..Default::default()
3136 });
3137
3138 let min_height = height_above_menu + min_menu_height + height_below_menu;
3139 let max_height = height_above_menu + max_menu_height + height_below_menu;
3140 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3141 target_position,
3142 line_height,
3143 min_height,
3144 max_height,
3145 text_hitbox,
3146 viewport_bounds,
3147 window,
3148 cx,
3149 |height, max_width_for_stable_x, y_flipped, window, cx| {
3150 // First layout the menu to get its size - others can be at least this wide.
3151 let context_menu = if context_menu_visible {
3152 let menu_height = if y_flipped {
3153 height - height_below_menu
3154 } else {
3155 height - height_above_menu
3156 };
3157 let mut element = self
3158 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3159 .expect("Visible context menu should always render.");
3160 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3161 Some((CursorPopoverType::CodeContextMenu, element, size))
3162 } else {
3163 None
3164 };
3165 let min_width = context_menu
3166 .as_ref()
3167 .map_or(px(0.), |(_, _, size)| size.width);
3168 let max_width = max_width_for_stable_x.max(
3169 context_menu
3170 .as_ref()
3171 .map_or(px(0.), |(_, _, size)| size.width),
3172 );
3173
3174 let edit_prediction = if edit_prediction_popover_visible {
3175 self.editor.update(cx, move |editor, cx| {
3176 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3177 let mut element = editor.render_edit_prediction_cursor_popover(
3178 min_width,
3179 max_width,
3180 cursor_point,
3181 style,
3182 accept_binding.keystroke()?,
3183 window,
3184 cx,
3185 )?;
3186 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3187 Some((CursorPopoverType::EditPrediction, element, size))
3188 })
3189 } else {
3190 None
3191 };
3192 vec![edit_prediction, context_menu]
3193 .into_iter()
3194 .flatten()
3195 .collect::<Vec<_>>()
3196 },
3197 ) else {
3198 return;
3199 };
3200
3201 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3202 .iter()
3203 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3204 else {
3205 return;
3206 };
3207 let last_ix = laid_out_popovers.len() - 1;
3208 let menu_is_last = menu_ix == last_ix;
3209 let first_popover_bounds = laid_out_popovers[0].1;
3210 let last_popover_bounds = laid_out_popovers[last_ix].1;
3211
3212 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3213 // right, and otherwise it goes below or to the right.
3214 let mut target_bounds = Bounds::from_corners(
3215 first_popover_bounds.origin,
3216 last_popover_bounds.bottom_right(),
3217 );
3218 target_bounds.size.width = menu_bounds.size.width;
3219
3220 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3221 // based on this is preferred for layout stability.
3222 let mut max_target_bounds = target_bounds;
3223 max_target_bounds.size.height = max_height;
3224 if y_flipped {
3225 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3226 }
3227
3228 // Add spacing around `target_bounds` and `max_target_bounds`.
3229 let mut extend_amount = Edges::all(MENU_GAP);
3230 if y_flipped {
3231 extend_amount.bottom = line_height;
3232 } else {
3233 extend_amount.top = line_height;
3234 }
3235 let target_bounds = target_bounds.extend(extend_amount);
3236 let max_target_bounds = max_target_bounds.extend(extend_amount);
3237
3238 let must_place_above_or_below =
3239 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3240 laid_out_popovers[menu_ix + 1..]
3241 .iter()
3242 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3243 } else {
3244 false
3245 };
3246
3247 self.layout_context_menu_aside(
3248 y_flipped,
3249 *menu_bounds,
3250 target_bounds,
3251 max_target_bounds,
3252 max_menu_height,
3253 must_place_above_or_below,
3254 text_hitbox,
3255 viewport_bounds,
3256 window,
3257 cx,
3258 );
3259 }
3260
3261 #[allow(clippy::too_many_arguments)]
3262 fn layout_gutter_menu(
3263 &self,
3264 line_height: Pixels,
3265 text_hitbox: &Hitbox,
3266 content_origin: gpui::Point<Pixels>,
3267 scroll_pixel_position: gpui::Point<Pixels>,
3268 gutter_overshoot: Pixels,
3269 window: &mut Window,
3270 cx: &mut App,
3271 ) {
3272 let editor = self.editor.read(cx);
3273 if !editor.context_menu_visible() {
3274 return;
3275 }
3276 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3277 editor.context_menu_origin()
3278 else {
3279 return;
3280 };
3281 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3282 // indicator than just a plain first column of the text field.
3283 let target_position = content_origin
3284 + gpui::Point {
3285 x: -gutter_overshoot,
3286 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3287 };
3288 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3289 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3290 let viewport_bounds =
3291 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3292 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3293 ..Default::default()
3294 });
3295 self.layout_popovers_above_or_below_line(
3296 target_position,
3297 line_height,
3298 min_height,
3299 max_height,
3300 text_hitbox,
3301 viewport_bounds,
3302 window,
3303 cx,
3304 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3305 let mut element = self
3306 .render_context_menu(line_height, height, y_flipped, window, cx)
3307 .expect("Visible context menu should always render.");
3308 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3309 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3310 },
3311 );
3312 }
3313
3314 #[allow(clippy::too_many_arguments)]
3315 fn layout_popovers_above_or_below_line(
3316 &self,
3317 target_position: gpui::Point<Pixels>,
3318 line_height: Pixels,
3319 min_height: Pixels,
3320 max_height: Pixels,
3321 text_hitbox: &Hitbox,
3322 viewport_bounds: Bounds<Pixels>,
3323 window: &mut Window,
3324 cx: &mut App,
3325 make_sized_popovers: impl FnOnce(
3326 Pixels,
3327 Pixels,
3328 bool,
3329 &mut Window,
3330 &mut App,
3331 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3332 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3333 // If the max height won't fit below and there is more space above, put it above the line.
3334 let bottom_y_when_flipped = target_position.y - line_height;
3335 let available_above = bottom_y_when_flipped - text_hitbox.top();
3336 let available_below = text_hitbox.bottom() - target_position.y;
3337 let y_overflows_below = max_height > available_below;
3338 let mut y_flipped = y_overflows_below && available_above > available_below;
3339 let mut height = cmp::min(
3340 max_height,
3341 if y_flipped {
3342 available_above
3343 } else {
3344 available_below
3345 },
3346 );
3347
3348 // If the min height doesn't fit within text bounds, instead fit within the window.
3349 if height < min_height {
3350 let available_above = bottom_y_when_flipped;
3351 let available_below = viewport_bounds.bottom() - target_position.y;
3352 if available_below > min_height {
3353 y_flipped = false;
3354 height = min_height;
3355 } else if available_above > min_height {
3356 y_flipped = true;
3357 height = min_height;
3358 } else if available_above > available_below {
3359 y_flipped = true;
3360 height = available_above;
3361 } else {
3362 y_flipped = false;
3363 height = available_below;
3364 }
3365 }
3366
3367 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3368
3369 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3370 // for very narrow windows.
3371 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3372 if popovers.is_empty() {
3373 return None;
3374 }
3375
3376 let max_width = popovers
3377 .iter()
3378 .map(|(_, _, size)| size.width)
3379 .max()
3380 .unwrap_or_default();
3381
3382 let mut current_position = gpui::Point {
3383 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3384 // overflow. Include space for the scrollbar.
3385 x: target_position
3386 .x
3387 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3388 y: if y_flipped {
3389 bottom_y_when_flipped
3390 } else {
3391 target_position.y
3392 },
3393 };
3394
3395 let mut laid_out_popovers = popovers
3396 .into_iter()
3397 .map(|(popover_type, element, size)| {
3398 if y_flipped {
3399 current_position.y -= size.height;
3400 }
3401 let position = current_position;
3402 window.defer_draw(element, current_position, 1);
3403 if !y_flipped {
3404 current_position.y += size.height + MENU_GAP;
3405 } else {
3406 current_position.y -= MENU_GAP;
3407 }
3408 (popover_type, Bounds::new(position, size))
3409 })
3410 .collect::<Vec<_>>();
3411
3412 if y_flipped {
3413 laid_out_popovers.reverse();
3414 }
3415
3416 Some((laid_out_popovers, y_flipped))
3417 }
3418
3419 #[allow(clippy::too_many_arguments)]
3420 fn layout_context_menu_aside(
3421 &self,
3422 y_flipped: bool,
3423 menu_bounds: Bounds<Pixels>,
3424 target_bounds: Bounds<Pixels>,
3425 max_target_bounds: Bounds<Pixels>,
3426 max_height: Pixels,
3427 must_place_above_or_below: bool,
3428 text_hitbox: &Hitbox,
3429 viewport_bounds: Bounds<Pixels>,
3430 window: &mut Window,
3431 cx: &mut App,
3432 ) {
3433 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3434 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3435 && !must_place_above_or_below
3436 {
3437 let max_width = cmp::min(
3438 available_within_viewport.right - px(1.),
3439 MENU_ASIDE_MAX_WIDTH,
3440 );
3441 let Some(mut aside) =
3442 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3443 else {
3444 return;
3445 };
3446 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3447 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3448 Some((aside, right_position))
3449 } else {
3450 let max_size = size(
3451 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3452 // won't be needed here.
3453 cmp::min(
3454 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3455 viewport_bounds.right(),
3456 ),
3457 cmp::min(
3458 max_height,
3459 cmp::max(
3460 available_within_viewport.top,
3461 available_within_viewport.bottom,
3462 ),
3463 ) - POPOVER_Y_PADDING,
3464 );
3465 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3466 return;
3467 };
3468 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3469
3470 let top_position = point(
3471 menu_bounds.origin.x,
3472 target_bounds.top() - actual_size.height,
3473 );
3474 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3475
3476 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3477 // Prefer to fit on the same side of the line as the menu, then on the other side of
3478 // the line.
3479 if !y_flipped && wanted.height < available.bottom {
3480 Some(bottom_position)
3481 } else if !y_flipped && wanted.height < available.top {
3482 Some(top_position)
3483 } else if y_flipped && wanted.height < available.top {
3484 Some(top_position)
3485 } else if y_flipped && wanted.height < available.bottom {
3486 Some(bottom_position)
3487 } else {
3488 None
3489 }
3490 };
3491
3492 // Prefer choosing a direction using max sizes rather than actual size for stability.
3493 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3494 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3495 let aside_position = fit_within(available_within_text, wanted)
3496 // Fallback: fit max size in window.
3497 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3498 // Fallback: fit actual size in window.
3499 .or_else(|| fit_within(available_within_viewport, actual_size));
3500
3501 aside_position.map(|position| (aside, position))
3502 };
3503
3504 // Skip drawing if it doesn't fit anywhere.
3505 if let Some((aside, position)) = positioned_aside {
3506 window.defer_draw(aside, position, 1);
3507 }
3508 }
3509
3510 fn render_context_menu(
3511 &self,
3512 line_height: Pixels,
3513 height: Pixels,
3514 y_flipped: bool,
3515 window: &mut Window,
3516 cx: &mut App,
3517 ) -> Option<AnyElement> {
3518 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3519 self.editor.update(cx, |editor, cx| {
3520 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3521 })
3522 }
3523
3524 fn render_context_menu_aside(
3525 &self,
3526 max_size: Size<Pixels>,
3527
3528 cx: &mut App,
3529 ) -> Option<AnyElement> {
3530 if max_size.width < px(100.) || max_size.height < px(12.) {
3531 None
3532 } else {
3533 self.editor.update(cx, |editor, cx| {
3534 editor.render_context_menu_aside(&self.style, max_size, cx)
3535 })
3536 }
3537 }
3538
3539 #[allow(clippy::too_many_arguments)]
3540 fn layout_edit_prediction_popover(
3541 &self,
3542 text_bounds: &Bounds<Pixels>,
3543 content_origin: gpui::Point<Pixels>,
3544 editor_snapshot: &EditorSnapshot,
3545 visible_row_range: Range<DisplayRow>,
3546 scroll_top: f32,
3547 scroll_bottom: f32,
3548 line_layouts: &[LineWithInvisibles],
3549 line_height: Pixels,
3550 scroll_pixel_position: gpui::Point<Pixels>,
3551 newest_selection_head: Option<DisplayPoint>,
3552 editor_width: Pixels,
3553 style: &EditorStyle,
3554 window: &mut Window,
3555 cx: &mut App,
3556 ) -> Option<AnyElement> {
3557 const PADDING_X: Pixels = Pixels(24.);
3558 const PADDING_Y: Pixels = Pixels(2.);
3559
3560 let editor = self.editor.read(cx);
3561 let active_inline_completion = editor.active_inline_completion.as_ref()?;
3562
3563 if editor.edit_prediction_visible_in_cursor_popover(true) {
3564 return None;
3565 }
3566
3567 // Adjust text origin for horizontal scrolling (in some cases here)
3568 let start_point = content_origin - gpui::Point::new(scroll_pixel_position.x, Pixels(0.0));
3569
3570 // Clamp left offset after extreme scrollings
3571 let clamp_start = |point: gpui::Point<Pixels>| gpui::Point {
3572 x: point.x.max(content_origin.x),
3573 y: point.y,
3574 };
3575
3576 match &active_inline_completion.completion {
3577 InlineCompletion::Move { target, .. } => {
3578 let target_display_point = target.to_display_point(editor_snapshot);
3579
3580 if editor.edit_prediction_requires_modifier() {
3581 if !editor.edit_prediction_preview_is_active() {
3582 return None;
3583 }
3584
3585 if target_display_point.row() < visible_row_range.start {
3586 let mut element = editor
3587 .render_edit_prediction_line_popover(
3588 "Scroll",
3589 Some(IconName::ArrowUp),
3590 window,
3591 cx,
3592 )?
3593 .into_any();
3594
3595 element.layout_as_root(AvailableSpace::min_size(), window, cx);
3596
3597 let cursor = newest_selection_head?;
3598 let cursor_row_layout = line_layouts
3599 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3600 let cursor_column = cursor.column() as usize;
3601
3602 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3603
3604 const PADDING_Y: Pixels = px(12.);
3605
3606 let origin = start_point + point(cursor_character_x, PADDING_Y);
3607
3608 element.prepaint_at(origin, window, cx);
3609 return Some(element);
3610 } else if target_display_point.row() >= visible_row_range.end {
3611 let mut element = editor
3612 .render_edit_prediction_line_popover(
3613 "Scroll",
3614 Some(IconName::ArrowDown),
3615 window,
3616 cx,
3617 )?
3618 .into_any();
3619
3620 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3621
3622 let cursor = newest_selection_head?;
3623 let cursor_row_layout = line_layouts
3624 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3625 let cursor_column = cursor.column() as usize;
3626
3627 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3628 const PADDING_Y: Pixels = px(12.);
3629
3630 let origin = start_point
3631 + point(
3632 cursor_character_x,
3633 text_bounds.size.height - size.height - PADDING_Y,
3634 );
3635
3636 element.prepaint_at(origin, window, cx);
3637 return Some(element);
3638 } else {
3639 const POLE_WIDTH: Pixels = px(2.);
3640
3641 let mut element = v_flex()
3642 .child(
3643 editor
3644 .render_edit_prediction_line_popover("Jump", None, window, cx)?
3645 .rounded_br(px(0.))
3646 .rounded_tr(px(0.))
3647 .border_r_2(),
3648 )
3649 .child(
3650 div()
3651 .w(POLE_WIDTH)
3652 .bg(cx.theme().colors().text_accent.opacity(0.8))
3653 .h(line_height),
3654 )
3655 .items_end()
3656 .into_any();
3657
3658 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3659
3660 let line_layout =
3661 line_layouts
3662 .get(target_display_point.row().minus(visible_row_range.start)
3663 as usize)?;
3664 let target_column = target_display_point.column() as usize;
3665
3666 let target_x = line_layout.x_for_index(target_column);
3667 let target_y = (target_display_point.row().as_f32() * line_height)
3668 - scroll_pixel_position.y;
3669
3670 let origin = clamp_start(
3671 start_point + point(target_x, target_y)
3672 - point(size.width - POLE_WIDTH, size.height - line_height),
3673 );
3674
3675 element.prepaint_at(origin, window, cx);
3676
3677 return Some(element);
3678 }
3679 }
3680
3681 if target_display_point.row().as_f32() < scroll_top {
3682 let mut element = editor
3683 .render_edit_prediction_line_popover(
3684 "Jump to Edit",
3685 Some(IconName::ArrowUp),
3686 window,
3687 cx,
3688 )?
3689 .into_any();
3690
3691 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3692 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3693
3694 element.prepaint_at(text_bounds.origin + offset, window, cx);
3695 Some(element)
3696 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3697 let mut element = editor
3698 .render_edit_prediction_line_popover(
3699 "Jump to Edit",
3700 Some(IconName::ArrowDown),
3701 window,
3702 cx,
3703 )?
3704 .into_any();
3705
3706 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3707 let offset = point(
3708 (text_bounds.size.width - size.width) / 2.,
3709 text_bounds.size.height - size.height - PADDING_Y,
3710 );
3711
3712 element.prepaint_at(text_bounds.origin + offset, window, cx);
3713 Some(element)
3714 } else {
3715 let mut element = editor
3716 .render_edit_prediction_line_popover("Jump to Edit", None, window, cx)?
3717 .into_any();
3718 let target_line_end = DisplayPoint::new(
3719 target_display_point.row(),
3720 editor_snapshot.line_len(target_display_point.row()),
3721 );
3722 let origin = self.editor.update(cx, |editor, _cx| {
3723 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3724 })?;
3725
3726 element.prepaint_as_root(
3727 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3728 AvailableSpace::min_size(),
3729 window,
3730 cx,
3731 );
3732 Some(element)
3733 }
3734 }
3735 InlineCompletion::Edit {
3736 edits,
3737 edit_preview,
3738 display_mode,
3739 snapshot,
3740 } => {
3741 if self.editor.read(cx).has_visible_completions_menu() {
3742 return None;
3743 }
3744
3745 let edit_start = edits
3746 .first()
3747 .unwrap()
3748 .0
3749 .start
3750 .to_display_point(editor_snapshot);
3751 let edit_end = edits
3752 .last()
3753 .unwrap()
3754 .0
3755 .end
3756 .to_display_point(editor_snapshot);
3757
3758 let is_visible = visible_row_range.contains(&edit_start.row())
3759 || visible_row_range.contains(&edit_end.row());
3760 if !is_visible {
3761 return None;
3762 }
3763
3764 match display_mode {
3765 EditDisplayMode::TabAccept => {
3766 let range = &edits.first()?.0;
3767 let target_display_point = range.end.to_display_point(editor_snapshot);
3768
3769 let target_line_end = DisplayPoint::new(
3770 target_display_point.row(),
3771 editor_snapshot.line_len(target_display_point.row()),
3772 );
3773 let (mut element, origin) = self.editor.update(cx, |editor, cx| {
3774 Some((
3775 editor
3776 .render_edit_prediction_line_popover(
3777 "Accept", None, window, cx,
3778 )?
3779 .into_any(),
3780 editor.display_to_pixel_point(
3781 target_line_end,
3782 editor_snapshot,
3783 window,
3784 )?,
3785 ))
3786 })?;
3787
3788 element.prepaint_as_root(
3789 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3790 AvailableSpace::min_size(),
3791 window,
3792 cx,
3793 );
3794 return Some(element);
3795 }
3796 EditDisplayMode::Inline => return None,
3797 EditDisplayMode::DiffPopover => {}
3798 }
3799
3800 let highlighted_edits = crate::inline_completion_edit_text(
3801 &snapshot,
3802 edits,
3803 edit_preview.as_ref()?,
3804 false,
3805 cx,
3806 );
3807
3808 let styled_text = highlighted_edits.to_styled_text(&style.text);
3809
3810 const ACCEPT_INDICATOR_HEIGHT: Pixels = px(24.);
3811
3812 let mut element = v_flex()
3813 .items_end()
3814 .child(
3815 h_flex()
3816 .h(ACCEPT_INDICATOR_HEIGHT)
3817 .mb(px(-1.))
3818 .px_1p5()
3819 .gap_1()
3820 .shadow_sm()
3821 .bg(Editor::edit_prediction_line_popover_bg_color(cx))
3822 .border_1()
3823 .border_b_0()
3824 .border_color(cx.theme().colors().border)
3825 .rounded_t_lg()
3826 .children(editor.render_edit_prediction_accept_keybind(window, cx)),
3827 )
3828 .child(
3829 div()
3830 .bg(cx.theme().colors().editor_background)
3831 .border_1()
3832 .shadow_sm()
3833 .border_color(cx.theme().colors().border)
3834 .rounded_lg()
3835 .rounded_tr(Pixels::ZERO)
3836 .child(styled_text),
3837 )
3838 .into_any();
3839
3840 let line_count = highlighted_edits.text.lines().count();
3841
3842 let longest_row =
3843 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3844 let longest_line_width = if visible_row_range.contains(&longest_row) {
3845 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3846 } else {
3847 layout_line(
3848 longest_row,
3849 editor_snapshot,
3850 style,
3851 editor_width,
3852 |_| false,
3853 window,
3854 cx,
3855 )
3856 .width
3857 };
3858
3859 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3860 .extend(Edges {
3861 right: -Self::SCROLLBAR_WIDTH,
3862 ..Default::default()
3863 });
3864
3865 let x_after_longest =
3866 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3867
3868 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3869
3870 // Fully visible if it can be displayed within the window (allow overlapping other
3871 // panes). However, this is only allowed if the popover starts within text_bounds.
3872 let is_fully_visible = x_after_longest < text_bounds.right()
3873 && x_after_longest + element_bounds.width < viewport_bounds.right();
3874
3875 let mut origin = if is_fully_visible {
3876 point(
3877 x_after_longest,
3878 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3879 - scroll_pixel_position.y,
3880 )
3881 } else {
3882 // Avoid overlapping both the edited rows and the user's cursor.
3883 let target_above = DisplayRow(
3884 edit_start
3885 .row()
3886 .0
3887 .min(
3888 newest_selection_head
3889 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3890 )
3891 .saturating_sub(line_count as u32),
3892 );
3893 let mut row_target;
3894 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3895 row_target = target_above;
3896 } else {
3897 row_target = DisplayRow(
3898 edit_end.row().0.max(
3899 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3900 ) + 1,
3901 );
3902 if !visible_row_range.contains(&row_target) {
3903 // Not visible, so fallback on displaying immediately below the cursor.
3904 if let Some(cursor) = newest_selection_head {
3905 row_target = DisplayRow(cursor.row().0 + 1);
3906 } else {
3907 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3908 row_target = DisplayRow(0);
3909 }
3910 }
3911 };
3912
3913 text_bounds.origin
3914 + point(
3915 -scroll_pixel_position.x,
3916 row_target.as_f32() * line_height - scroll_pixel_position.y,
3917 )
3918 };
3919
3920 origin.y -= ACCEPT_INDICATOR_HEIGHT;
3921
3922 window.defer_draw(element, origin, 1);
3923
3924 // Do not return an element, since it will already be drawn due to defer_draw.
3925 None
3926 }
3927 }
3928 }
3929
3930 fn layout_mouse_context_menu(
3931 &self,
3932 editor_snapshot: &EditorSnapshot,
3933 visible_range: Range<DisplayRow>,
3934 content_origin: gpui::Point<Pixels>,
3935 window: &mut Window,
3936 cx: &mut App,
3937 ) -> Option<AnyElement> {
3938 let position = self.editor.update(cx, |editor, _cx| {
3939 let visible_start_point = editor.display_to_pixel_point(
3940 DisplayPoint::new(visible_range.start, 0),
3941 editor_snapshot,
3942 window,
3943 )?;
3944 let visible_end_point = editor.display_to_pixel_point(
3945 DisplayPoint::new(visible_range.end, 0),
3946 editor_snapshot,
3947 window,
3948 )?;
3949
3950 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3951 let (source_display_point, position) = match mouse_context_menu.position {
3952 MenuPosition::PinnedToScreen(point) => (None, point),
3953 MenuPosition::PinnedToEditor { source, offset } => {
3954 let source_display_point = source.to_display_point(editor_snapshot);
3955 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3956 let position = content_origin + source_point + offset;
3957 (Some(source_display_point), position)
3958 }
3959 };
3960
3961 let source_included = source_display_point.map_or(true, |source_display_point| {
3962 visible_range
3963 .to_inclusive()
3964 .contains(&source_display_point.row())
3965 });
3966 let position_included =
3967 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3968 if !source_included && !position_included {
3969 None
3970 } else {
3971 Some(position)
3972 }
3973 })?;
3974
3975 let mut element = self.editor.update(cx, |editor, _| {
3976 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3977 let context_menu = mouse_context_menu.context_menu.clone();
3978
3979 Some(
3980 deferred(
3981 anchored()
3982 .position(position)
3983 .child(context_menu)
3984 .anchor(Corner::TopLeft)
3985 .snap_to_window_with_margin(px(8.)),
3986 )
3987 .with_priority(1)
3988 .into_any(),
3989 )
3990 })?;
3991
3992 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3993 Some(element)
3994 }
3995
3996 #[allow(clippy::too_many_arguments)]
3997 fn layout_hover_popovers(
3998 &self,
3999 snapshot: &EditorSnapshot,
4000 hitbox: &Hitbox,
4001 text_hitbox: &Hitbox,
4002 visible_display_row_range: Range<DisplayRow>,
4003 content_origin: gpui::Point<Pixels>,
4004 scroll_pixel_position: gpui::Point<Pixels>,
4005 line_layouts: &[LineWithInvisibles],
4006 line_height: Pixels,
4007 em_width: Pixels,
4008 window: &mut Window,
4009 cx: &mut App,
4010 ) {
4011 struct MeasuredHoverPopover {
4012 element: AnyElement,
4013 size: Size<Pixels>,
4014 horizontal_offset: Pixels,
4015 }
4016
4017 let max_size = size(
4018 (120. * em_width) // Default size
4019 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4020 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4021 (16. * line_height) // Default size
4022 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4023 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4024 );
4025
4026 let hover_popovers = self.editor.update(cx, |editor, cx| {
4027 editor
4028 .hover_state
4029 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4030 });
4031 let Some((position, hover_popovers)) = hover_popovers else {
4032 return;
4033 };
4034
4035 // This is safe because we check on layout whether the required row is available
4036 let hovered_row_layout =
4037 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4038
4039 // Compute Hovered Point
4040 let x =
4041 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4042 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4043 let hovered_point = content_origin + point(x, y);
4044
4045 let mut overall_height = Pixels::ZERO;
4046 let mut measured_hover_popovers = Vec::new();
4047 for mut hover_popover in hover_popovers {
4048 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4049 let horizontal_offset =
4050 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4051
4052 overall_height += HOVER_POPOVER_GAP + size.height;
4053
4054 measured_hover_popovers.push(MeasuredHoverPopover {
4055 element: hover_popover,
4056 size,
4057 horizontal_offset,
4058 });
4059 }
4060 overall_height += HOVER_POPOVER_GAP;
4061
4062 fn draw_occluder(
4063 width: Pixels,
4064 origin: gpui::Point<Pixels>,
4065 window: &mut Window,
4066 cx: &mut App,
4067 ) {
4068 let mut occlusion = div()
4069 .size_full()
4070 .occlude()
4071 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4072 .into_any_element();
4073 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4074 window.defer_draw(occlusion, origin, 2);
4075 }
4076
4077 if hovered_point.y > overall_height {
4078 // There is enough space above. Render popovers above the hovered point
4079 let mut current_y = hovered_point.y;
4080 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4081 let size = popover.size;
4082 let popover_origin = point(
4083 hovered_point.x + popover.horizontal_offset,
4084 current_y - size.height,
4085 );
4086
4087 window.defer_draw(popover.element, popover_origin, 2);
4088 if position != itertools::Position::Last {
4089 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4090 draw_occluder(size.width, origin, window, cx);
4091 }
4092
4093 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4094 }
4095 } else {
4096 // There is not enough space above. Render popovers below the hovered point
4097 let mut current_y = hovered_point.y + line_height;
4098 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4099 let size = popover.size;
4100 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4101
4102 window.defer_draw(popover.element, popover_origin, 2);
4103 if position != itertools::Position::Last {
4104 let origin = point(popover_origin.x, popover_origin.y + size.height);
4105 draw_occluder(size.width, origin, window, cx);
4106 }
4107
4108 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4109 }
4110 }
4111 }
4112
4113 #[allow(clippy::too_many_arguments)]
4114 fn layout_diff_hunk_controls(
4115 &self,
4116 row_range: Range<DisplayRow>,
4117 row_infos: &[RowInfo],
4118 text_hitbox: &Hitbox,
4119 position_map: &PositionMap,
4120 newest_cursor_position: Option<DisplayPoint>,
4121 line_height: Pixels,
4122 scroll_pixel_position: gpui::Point<Pixels>,
4123 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4124 editor: Entity<Editor>,
4125 window: &mut Window,
4126 cx: &mut App,
4127 ) -> Vec<AnyElement> {
4128 let point_for_position = position_map.point_for_position(window.mouse_position());
4129
4130 let mut controls = vec![];
4131
4132 let active_positions = [
4133 Some(point_for_position.previous_valid),
4134 newest_cursor_position,
4135 ];
4136
4137 for (hunk, _) in display_hunks {
4138 if let DisplayDiffHunk::Unfolded {
4139 display_row_range,
4140 multi_buffer_range,
4141 status,
4142 ..
4143 } = &hunk
4144 {
4145 if display_row_range.start < row_range.start
4146 || display_row_range.start >= row_range.end
4147 {
4148 continue;
4149 }
4150 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4151 if row_infos[row_ix].diff_status.is_none() {
4152 continue;
4153 }
4154 if matches!(
4155 row_infos[row_ix].diff_status,
4156 Some(DiffHunkStatus::Added(_))
4157 ) && !matches!(*status, DiffHunkStatus::Added(_))
4158 {
4159 continue;
4160 }
4161 if active_positions
4162 .iter()
4163 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4164 {
4165 let y = display_row_range.start.as_f32() * line_height
4166 + text_hitbox.bounds.top()
4167 - scroll_pixel_position.y;
4168 let x = text_hitbox.bounds.right() - px(100.);
4169
4170 let mut element = diff_hunk_controls(
4171 display_row_range.start.0,
4172 multi_buffer_range.clone(),
4173 line_height,
4174 &editor,
4175 cx,
4176 );
4177 element.prepaint_as_root(
4178 gpui::Point::new(x, y),
4179 size(px(100.0), line_height).into(),
4180 window,
4181 cx,
4182 );
4183 controls.push(element);
4184 }
4185 }
4186 }
4187
4188 controls
4189 }
4190
4191 #[allow(clippy::too_many_arguments)]
4192 fn layout_signature_help(
4193 &self,
4194 hitbox: &Hitbox,
4195 content_origin: gpui::Point<Pixels>,
4196 scroll_pixel_position: gpui::Point<Pixels>,
4197 newest_selection_head: Option<DisplayPoint>,
4198 start_row: DisplayRow,
4199 line_layouts: &[LineWithInvisibles],
4200 line_height: Pixels,
4201 em_width: Pixels,
4202 window: &mut Window,
4203 cx: &mut App,
4204 ) {
4205 if !self.editor.focus_handle(cx).is_focused(window) {
4206 return;
4207 }
4208 let Some(newest_selection_head) = newest_selection_head else {
4209 return;
4210 };
4211 let selection_row = newest_selection_head.row();
4212 if selection_row < start_row {
4213 return;
4214 }
4215 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4216 else {
4217 return;
4218 };
4219
4220 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4221 - scroll_pixel_position.x
4222 + content_origin.x;
4223 let start_y =
4224 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4225
4226 let max_size = size(
4227 (120. * em_width) // Default size
4228 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4229 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4230 (16. * line_height) // Default size
4231 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4232 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4233 );
4234
4235 let maybe_element = self.editor.update(cx, |editor, cx| {
4236 if let Some(popover) = editor.signature_help_state.popover_mut() {
4237 let element = popover.render(
4238 &self.style,
4239 max_size,
4240 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4241 cx,
4242 );
4243 Some(element)
4244 } else {
4245 None
4246 }
4247 });
4248 if let Some(mut element) = maybe_element {
4249 let window_size = window.viewport_size();
4250 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4251 let mut point = point(start_x, start_y - size.height);
4252
4253 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4254 if point.x + size.width >= window_size.width {
4255 point.x = window_size.width - size.width;
4256 }
4257
4258 window.defer_draw(element, point, 1)
4259 }
4260 }
4261
4262 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4263 window.paint_layer(layout.hitbox.bounds, |window| {
4264 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4265 let gutter_bg = cx.theme().colors().editor_gutter_background;
4266 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4267 window.paint_quad(fill(
4268 layout.position_map.text_hitbox.bounds,
4269 self.style.background,
4270 ));
4271
4272 if let EditorMode::Full = layout.mode {
4273 let mut active_rows = layout.active_rows.iter().peekable();
4274 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4275 let mut end_row = start_row.0;
4276 while active_rows
4277 .peek()
4278 .map_or(false, |(active_row, has_selection)| {
4279 active_row.0 == end_row + 1
4280 && *has_selection == contains_non_empty_selection
4281 })
4282 {
4283 active_rows.next().unwrap();
4284 end_row += 1;
4285 }
4286
4287 if !contains_non_empty_selection {
4288 let highlight_h_range =
4289 match layout.position_map.snapshot.current_line_highlight {
4290 CurrentLineHighlight::Gutter => Some(Range {
4291 start: layout.hitbox.left(),
4292 end: layout.gutter_hitbox.right(),
4293 }),
4294 CurrentLineHighlight::Line => Some(Range {
4295 start: layout.position_map.text_hitbox.bounds.left(),
4296 end: layout.position_map.text_hitbox.bounds.right(),
4297 }),
4298 CurrentLineHighlight::All => Some(Range {
4299 start: layout.hitbox.left(),
4300 end: layout.hitbox.right(),
4301 }),
4302 CurrentLineHighlight::None => None,
4303 };
4304 if let Some(range) = highlight_h_range {
4305 let active_line_bg = cx.theme().colors().editor_active_line_background;
4306 let bounds = Bounds {
4307 origin: point(
4308 range.start,
4309 layout.hitbox.origin.y
4310 + (start_row.as_f32() - scroll_top)
4311 * layout.position_map.line_height,
4312 ),
4313 size: size(
4314 range.end - range.start,
4315 layout.position_map.line_height
4316 * (end_row - start_row.0 + 1) as f32,
4317 ),
4318 };
4319 window.paint_quad(fill(bounds, active_line_bg));
4320 }
4321 }
4322 }
4323
4324 let mut paint_highlight =
4325 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4326 let origin = point(
4327 layout.hitbox.origin.x,
4328 layout.hitbox.origin.y
4329 + (highlight_row_start.as_f32() - scroll_top)
4330 * layout.position_map.line_height,
4331 );
4332 let size = size(
4333 layout.hitbox.size.width,
4334 layout.position_map.line_height
4335 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4336 );
4337 window.paint_quad(fill(Bounds { origin, size }, color));
4338 };
4339
4340 let mut current_paint: Option<(gpui::Background, Range<DisplayRow>)> = None;
4341 for (&new_row, &new_background) in &layout.highlighted_rows {
4342 match &mut current_paint {
4343 Some((current_background, current_range)) => {
4344 let current_background = *current_background;
4345 let new_range_started = current_background != new_background
4346 || current_range.end.next_row() != new_row;
4347 if new_range_started {
4348 paint_highlight(
4349 current_range.start,
4350 current_range.end,
4351 current_background,
4352 );
4353 current_paint = Some((new_background, new_row..new_row));
4354 continue;
4355 } else {
4356 current_range.end = current_range.end.next_row();
4357 }
4358 }
4359 None => current_paint = Some((new_background, new_row..new_row)),
4360 };
4361 }
4362 if let Some((color, range)) = current_paint {
4363 paint_highlight(range.start, range.end, color);
4364 }
4365
4366 let scroll_left =
4367 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4368
4369 for (wrap_position, active) in layout.wrap_guides.iter() {
4370 let x = (layout.position_map.text_hitbox.origin.x
4371 + *wrap_position
4372 + layout.position_map.em_width / 2.)
4373 - scroll_left;
4374
4375 let show_scrollbars = {
4376 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4377
4378 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4379 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4380 };
4381
4382 if x < layout.position_map.text_hitbox.origin.x
4383 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4384 {
4385 continue;
4386 }
4387
4388 let color = if *active {
4389 cx.theme().colors().editor_active_wrap_guide
4390 } else {
4391 cx.theme().colors().editor_wrap_guide
4392 };
4393 window.paint_quad(fill(
4394 Bounds {
4395 origin: point(x, layout.position_map.text_hitbox.origin.y),
4396 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4397 },
4398 color,
4399 ));
4400 }
4401 }
4402 })
4403 }
4404
4405 fn paint_indent_guides(
4406 &mut self,
4407 layout: &mut EditorLayout,
4408 window: &mut Window,
4409 cx: &mut App,
4410 ) {
4411 let Some(indent_guides) = &layout.indent_guides else {
4412 return;
4413 };
4414
4415 let faded_color = |color: Hsla, alpha: f32| {
4416 let mut faded = color;
4417 faded.a = alpha;
4418 faded
4419 };
4420
4421 for indent_guide in indent_guides {
4422 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4423 let settings = indent_guide.settings;
4424
4425 // TODO fixed for now, expose them through themes later
4426 const INDENT_AWARE_ALPHA: f32 = 0.2;
4427 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4428 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4429 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4430
4431 let line_color = match (settings.coloring, indent_guide.active) {
4432 (IndentGuideColoring::Disabled, _) => None,
4433 (IndentGuideColoring::Fixed, false) => {
4434 Some(cx.theme().colors().editor_indent_guide)
4435 }
4436 (IndentGuideColoring::Fixed, true) => {
4437 Some(cx.theme().colors().editor_indent_guide_active)
4438 }
4439 (IndentGuideColoring::IndentAware, false) => {
4440 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4441 }
4442 (IndentGuideColoring::IndentAware, true) => {
4443 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4444 }
4445 };
4446
4447 let background_color = match (settings.background_coloring, indent_guide.active) {
4448 (IndentGuideBackgroundColoring::Disabled, _) => None,
4449 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4450 indent_accent_colors,
4451 INDENT_AWARE_BACKGROUND_ALPHA,
4452 )),
4453 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4454 indent_accent_colors,
4455 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4456 )),
4457 };
4458
4459 let requested_line_width = if indent_guide.active {
4460 settings.active_line_width
4461 } else {
4462 settings.line_width
4463 }
4464 .clamp(1, 10);
4465 let mut line_indicator_width = 0.;
4466 if let Some(color) = line_color {
4467 window.paint_quad(fill(
4468 Bounds {
4469 origin: indent_guide.origin,
4470 size: size(px(requested_line_width as f32), indent_guide.length),
4471 },
4472 color,
4473 ));
4474 line_indicator_width = requested_line_width as f32;
4475 }
4476
4477 if let Some(color) = background_color {
4478 let width = indent_guide.single_indent_width - px(line_indicator_width);
4479 window.paint_quad(fill(
4480 Bounds {
4481 origin: point(
4482 indent_guide.origin.x + px(line_indicator_width),
4483 indent_guide.origin.y,
4484 ),
4485 size: size(width, indent_guide.length),
4486 },
4487 color,
4488 ));
4489 }
4490 }
4491 }
4492
4493 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4494 let is_singleton = self.editor.read(cx).is_singleton(cx);
4495
4496 let line_height = layout.position_map.line_height;
4497 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4498
4499 for LineNumberLayout {
4500 shaped_line,
4501 hitbox,
4502 display_row,
4503 } in layout.line_numbers.values()
4504 {
4505 let Some(hitbox) = hitbox else {
4506 continue;
4507 };
4508
4509 let is_active = layout.active_rows.contains_key(&display_row);
4510
4511 let color = if is_active {
4512 cx.theme().colors().editor_active_line_number
4513 } else if !is_singleton && hitbox.is_hovered(window) {
4514 cx.theme().colors().editor_hover_line_number
4515 } else {
4516 cx.theme().colors().editor_line_number
4517 };
4518
4519 let Some(line) = self
4520 .shape_line_number(shaped_line.text.clone(), color, window)
4521 .log_err()
4522 else {
4523 continue;
4524 };
4525 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4526 continue;
4527 };
4528 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4529 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4530 if is_singleton {
4531 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4532 } else {
4533 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4534 }
4535 }
4536 }
4537
4538 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4539 if layout.display_hunks.is_empty() {
4540 return;
4541 }
4542
4543 let line_height = layout.position_map.line_height;
4544 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4545 for (hunk, hitbox) in &layout.display_hunks {
4546 let hunk_to_paint = match hunk {
4547 DisplayDiffHunk::Folded { .. } => {
4548 let hunk_bounds = Self::diff_hunk_bounds(
4549 &layout.position_map.snapshot,
4550 line_height,
4551 layout.gutter_hitbox.bounds,
4552 hunk,
4553 );
4554 Some((
4555 hunk_bounds,
4556 cx.theme().status().modified,
4557 Corners::all(px(0.)),
4558 &DiffHunkSecondaryStatus::None,
4559 ))
4560 }
4561 DisplayDiffHunk::Unfolded {
4562 status,
4563 display_row_range,
4564 ..
4565 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4566 DiffHunkStatus::Added(secondary_status) => (
4567 hunk_hitbox.bounds,
4568 cx.theme().status().created,
4569 Corners::all(px(0.)),
4570 secondary_status,
4571 ),
4572 DiffHunkStatus::Modified(secondary_status) => (
4573 hunk_hitbox.bounds,
4574 cx.theme().status().modified,
4575 Corners::all(px(0.)),
4576 secondary_status,
4577 ),
4578 DiffHunkStatus::Removed(secondary_status)
4579 if !display_row_range.is_empty() =>
4580 {
4581 (
4582 hunk_hitbox.bounds,
4583 cx.theme().status().deleted,
4584 Corners::all(px(0.)),
4585 secondary_status,
4586 )
4587 }
4588 DiffHunkStatus::Removed(secondary_status) => (
4589 Bounds::new(
4590 point(
4591 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4592 hunk_hitbox.origin.y,
4593 ),
4594 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4595 ),
4596 cx.theme().status().deleted,
4597 Corners::all(1. * line_height),
4598 secondary_status,
4599 ),
4600 }),
4601 };
4602
4603 if let Some((hunk_bounds, mut background_color, corner_radii, secondary_status)) =
4604 hunk_to_paint
4605 {
4606 if *secondary_status != DiffHunkSecondaryStatus::None {
4607 background_color.a *= 0.6;
4608 }
4609 window.paint_quad(quad(
4610 hunk_bounds,
4611 corner_radii,
4612 background_color,
4613 Edges::default(),
4614 transparent_black(),
4615 ));
4616 }
4617 }
4618 });
4619 }
4620
4621 fn diff_hunk_bounds(
4622 snapshot: &EditorSnapshot,
4623 line_height: Pixels,
4624 gutter_bounds: Bounds<Pixels>,
4625 hunk: &DisplayDiffHunk,
4626 ) -> Bounds<Pixels> {
4627 let scroll_position = snapshot.scroll_position();
4628 let scroll_top = scroll_position.y * line_height;
4629 let gutter_strip_width = (0.275 * line_height).floor();
4630
4631 match hunk {
4632 DisplayDiffHunk::Folded { display_row, .. } => {
4633 let start_y = display_row.as_f32() * line_height - scroll_top;
4634 let end_y = start_y + line_height;
4635 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4636 let highlight_size = size(gutter_strip_width, end_y - start_y);
4637 Bounds::new(highlight_origin, highlight_size)
4638 }
4639 DisplayDiffHunk::Unfolded {
4640 display_row_range,
4641 status,
4642 ..
4643 } => {
4644 if status.is_removed() && display_row_range.is_empty() {
4645 let row = display_row_range.start;
4646
4647 let offset = line_height / 2.;
4648 let start_y = row.as_f32() * line_height - offset - scroll_top;
4649 let end_y = start_y + line_height;
4650
4651 let width = (0.35 * line_height).floor();
4652 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4653 let highlight_size = size(width, end_y - start_y);
4654 Bounds::new(highlight_origin, highlight_size)
4655 } else {
4656 let start_row = display_row_range.start;
4657 let end_row = display_row_range.end;
4658 // If we're in a multibuffer, row range span might include an
4659 // excerpt header, so if we were to draw the marker straight away,
4660 // the hunk might include the rows of that header.
4661 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4662 // Instead, we simply check whether the range we're dealing with includes
4663 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4664 let end_row_in_current_excerpt = snapshot
4665 .blocks_in_range(start_row..end_row)
4666 .find_map(|(start_row, block)| {
4667 if matches!(block, Block::ExcerptBoundary { .. }) {
4668 Some(start_row)
4669 } else {
4670 None
4671 }
4672 })
4673 .unwrap_or(end_row);
4674
4675 let start_y = start_row.as_f32() * line_height - scroll_top;
4676 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4677
4678 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4679 let highlight_size = size(gutter_strip_width, end_y - start_y);
4680 Bounds::new(highlight_origin, highlight_size)
4681 }
4682 }
4683 }
4684 }
4685
4686 fn paint_gutter_indicators(
4687 &self,
4688 layout: &mut EditorLayout,
4689 window: &mut Window,
4690 cx: &mut App,
4691 ) {
4692 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4693 window.with_element_namespace("crease_toggles", |window| {
4694 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4695 crease_toggle.paint(window, cx);
4696 }
4697 });
4698
4699 for test_indicator in layout.test_indicators.iter_mut() {
4700 test_indicator.paint(window, cx);
4701 }
4702
4703 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4704 indicator.paint(window, cx);
4705 }
4706 });
4707 }
4708
4709 fn paint_gutter_highlights(
4710 &self,
4711 layout: &mut EditorLayout,
4712 window: &mut Window,
4713 cx: &mut App,
4714 ) {
4715 for (_, hunk_hitbox) in &layout.display_hunks {
4716 if let Some(hunk_hitbox) = hunk_hitbox {
4717 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4718 }
4719 }
4720
4721 let show_git_gutter = layout
4722 .position_map
4723 .snapshot
4724 .show_git_diff_gutter
4725 .unwrap_or_else(|| {
4726 matches!(
4727 ProjectSettings::get_global(cx).git.git_gutter,
4728 Some(GitGutterSetting::TrackedFiles)
4729 )
4730 });
4731 if show_git_gutter {
4732 Self::paint_diff_hunks(layout, window, cx)
4733 }
4734
4735 let highlight_width = 0.275 * layout.position_map.line_height;
4736 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4737 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4738 for (range, color) in &layout.highlighted_gutter_ranges {
4739 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4740 layout.visible_display_row_range.start - DisplayRow(1)
4741 } else {
4742 range.start.row()
4743 };
4744 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4745 layout.visible_display_row_range.end + DisplayRow(1)
4746 } else {
4747 range.end.row()
4748 };
4749
4750 let start_y = layout.gutter_hitbox.top()
4751 + start_row.0 as f32 * layout.position_map.line_height
4752 - layout.position_map.scroll_pixel_position.y;
4753 let end_y = layout.gutter_hitbox.top()
4754 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4755 - layout.position_map.scroll_pixel_position.y;
4756 let bounds = Bounds::from_corners(
4757 point(layout.gutter_hitbox.left(), start_y),
4758 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4759 );
4760 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4761 }
4762 });
4763 }
4764
4765 fn paint_blamed_display_rows(
4766 &self,
4767 layout: &mut EditorLayout,
4768 window: &mut Window,
4769 cx: &mut App,
4770 ) {
4771 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4772 return;
4773 };
4774
4775 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4776 for mut blame_element in blamed_display_rows.into_iter() {
4777 blame_element.paint(window, cx);
4778 }
4779 })
4780 }
4781
4782 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4783 window.with_content_mask(
4784 Some(ContentMask {
4785 bounds: layout.position_map.text_hitbox.bounds,
4786 }),
4787 |window| {
4788 let cursor_style = if self
4789 .editor
4790 .read(cx)
4791 .hovered_link_state
4792 .as_ref()
4793 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4794 {
4795 CursorStyle::PointingHand
4796 } else {
4797 CursorStyle::IBeam
4798 };
4799 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4800
4801 let invisible_display_ranges = self.paint_highlights(layout, window);
4802 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4803 self.paint_redactions(layout, window);
4804 self.paint_cursors(layout, window, cx);
4805 self.paint_inline_blame(layout, window, cx);
4806 self.paint_diff_hunk_controls(layout, window, cx);
4807 window.with_element_namespace("crease_trailers", |window| {
4808 for trailer in layout.crease_trailers.iter_mut().flatten() {
4809 trailer.element.paint(window, cx);
4810 }
4811 });
4812 },
4813 )
4814 }
4815
4816 fn paint_highlights(
4817 &mut self,
4818 layout: &mut EditorLayout,
4819 window: &mut Window,
4820 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4821 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4822 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4823 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4824 for (range, color) in &layout.highlighted_ranges {
4825 self.paint_highlighted_range(
4826 range.clone(),
4827 *color,
4828 Pixels::ZERO,
4829 line_end_overshoot,
4830 layout,
4831 window,
4832 );
4833 }
4834
4835 let corner_radius = 0.15 * layout.position_map.line_height;
4836
4837 for (player_color, selections) in &layout.selections {
4838 for selection in selections.iter() {
4839 self.paint_highlighted_range(
4840 selection.range.clone(),
4841 player_color.selection,
4842 corner_radius,
4843 corner_radius * 2.,
4844 layout,
4845 window,
4846 );
4847
4848 if selection.is_local && !selection.range.is_empty() {
4849 invisible_display_ranges.push(selection.range.clone());
4850 }
4851 }
4852 }
4853 invisible_display_ranges
4854 })
4855 }
4856
4857 fn paint_lines(
4858 &mut self,
4859 invisible_display_ranges: &[Range<DisplayPoint>],
4860 layout: &mut EditorLayout,
4861 window: &mut Window,
4862 cx: &mut App,
4863 ) {
4864 let whitespace_setting = self
4865 .editor
4866 .read(cx)
4867 .buffer
4868 .read(cx)
4869 .settings_at(0, cx)
4870 .show_whitespaces;
4871
4872 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4873 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4874 line_with_invisibles.draw(
4875 layout,
4876 row,
4877 layout.content_origin,
4878 whitespace_setting,
4879 invisible_display_ranges,
4880 window,
4881 cx,
4882 )
4883 }
4884
4885 for line_element in &mut layout.line_elements {
4886 line_element.paint(window, cx);
4887 }
4888 }
4889
4890 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4891 if layout.redacted_ranges.is_empty() {
4892 return;
4893 }
4894
4895 let line_end_overshoot = layout.line_end_overshoot();
4896
4897 // A softer than perfect black
4898 let redaction_color = gpui::rgb(0x0e1111);
4899
4900 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4901 for range in layout.redacted_ranges.iter() {
4902 self.paint_highlighted_range(
4903 range.clone(),
4904 redaction_color.into(),
4905 Pixels::ZERO,
4906 line_end_overshoot,
4907 layout,
4908 window,
4909 );
4910 }
4911 });
4912 }
4913
4914 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4915 for cursor in &mut layout.visible_cursors {
4916 cursor.paint(layout.content_origin, window, cx);
4917 }
4918 }
4919
4920 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4921 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4922
4923 if let Some(scrollbar_layout) = scrollbar_x {
4924 let hitbox = scrollbar_layout.hitbox.clone();
4925 let text_unit_size = scrollbar_layout.text_unit_size;
4926 let visible_range = scrollbar_layout.visible_range.clone();
4927 let thumb_bounds = scrollbar_layout.thumb_bounds();
4928
4929 if scrollbar_layout.visible {
4930 window.paint_layer(hitbox.bounds, |window| {
4931 window.paint_quad(quad(
4932 hitbox.bounds,
4933 Corners::default(),
4934 cx.theme().colors().scrollbar_track_background,
4935 Edges {
4936 top: Pixels::ZERO,
4937 right: Pixels::ZERO,
4938 bottom: Pixels::ZERO,
4939 left: Pixels::ZERO,
4940 },
4941 cx.theme().colors().scrollbar_track_border,
4942 ));
4943
4944 window.paint_quad(quad(
4945 thumb_bounds,
4946 Corners::default(),
4947 cx.theme().colors().scrollbar_thumb_background,
4948 Edges {
4949 top: Pixels::ZERO,
4950 right: Pixels::ZERO,
4951 bottom: Pixels::ZERO,
4952 left: ScrollbarLayout::BORDER_WIDTH,
4953 },
4954 cx.theme().colors().scrollbar_thumb_border,
4955 ));
4956 })
4957 }
4958
4959 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4960
4961 window.on_mouse_event({
4962 let editor = self.editor.clone();
4963
4964 // there may be a way to avoid this clone
4965 let hitbox = hitbox.clone();
4966
4967 let mut mouse_position = window.mouse_position();
4968 move |event: &MouseMoveEvent, phase, window, cx| {
4969 if phase == DispatchPhase::Capture {
4970 return;
4971 }
4972
4973 editor.update(cx, |editor, cx| {
4974 if event.pressed_button == Some(MouseButton::Left)
4975 && editor
4976 .scroll_manager
4977 .is_dragging_scrollbar(Axis::Horizontal)
4978 {
4979 let x = mouse_position.x;
4980 let new_x = event.position.x;
4981 if (hitbox.left()..hitbox.right()).contains(&x) {
4982 let mut position = editor.scroll_position(cx);
4983
4984 position.x += (new_x - x) / text_unit_size;
4985 if position.x < 0.0 {
4986 position.x = 0.0;
4987 }
4988 editor.set_scroll_position(position, window, cx);
4989 }
4990
4991 cx.stop_propagation();
4992 } else {
4993 editor.scroll_manager.set_is_dragging_scrollbar(
4994 Axis::Horizontal,
4995 false,
4996 cx,
4997 );
4998
4999 if hitbox.is_hovered(window) {
5000 editor.scroll_manager.show_scrollbar(window, cx);
5001 }
5002 }
5003 mouse_position = event.position;
5004 })
5005 }
5006 });
5007
5008 if self
5009 .editor
5010 .read(cx)
5011 .scroll_manager
5012 .is_dragging_scrollbar(Axis::Horizontal)
5013 {
5014 window.on_mouse_event({
5015 let editor = self.editor.clone();
5016 move |_: &MouseUpEvent, phase, _, cx| {
5017 if phase == DispatchPhase::Capture {
5018 return;
5019 }
5020
5021 editor.update(cx, |editor, cx| {
5022 editor.scroll_manager.set_is_dragging_scrollbar(
5023 Axis::Horizontal,
5024 false,
5025 cx,
5026 );
5027 cx.stop_propagation();
5028 });
5029 }
5030 });
5031 } else {
5032 window.on_mouse_event({
5033 let editor = self.editor.clone();
5034
5035 move |event: &MouseDownEvent, phase, window, cx| {
5036 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5037 return;
5038 }
5039
5040 editor.update(cx, |editor, cx| {
5041 editor.scroll_manager.set_is_dragging_scrollbar(
5042 Axis::Horizontal,
5043 true,
5044 cx,
5045 );
5046
5047 let x = event.position.x;
5048
5049 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5050 let center_row =
5051 ((x - hitbox.left()) / text_unit_size).round() as u32;
5052 let top_row = center_row.saturating_sub(
5053 (visible_range.end - visible_range.start) as u32 / 2,
5054 );
5055
5056 let mut position = editor.scroll_position(cx);
5057 position.x = top_row as f32;
5058
5059 editor.set_scroll_position(position, window, cx);
5060 } else {
5061 editor.scroll_manager.show_scrollbar(window, cx);
5062 }
5063
5064 cx.stop_propagation();
5065 });
5066 }
5067 });
5068 }
5069 }
5070
5071 if let Some(scrollbar_layout) = scrollbar_y {
5072 let hitbox = scrollbar_layout.hitbox.clone();
5073 let text_unit_size = scrollbar_layout.text_unit_size;
5074 let visible_range = scrollbar_layout.visible_range.clone();
5075 let thumb_bounds = scrollbar_layout.thumb_bounds();
5076
5077 if scrollbar_layout.visible {
5078 window.paint_layer(hitbox.bounds, |window| {
5079 window.paint_quad(quad(
5080 hitbox.bounds,
5081 Corners::default(),
5082 cx.theme().colors().scrollbar_track_background,
5083 Edges {
5084 top: Pixels::ZERO,
5085 right: Pixels::ZERO,
5086 bottom: Pixels::ZERO,
5087 left: ScrollbarLayout::BORDER_WIDTH,
5088 },
5089 cx.theme().colors().scrollbar_track_border,
5090 ));
5091
5092 let fast_markers =
5093 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5094 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5095 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5096
5097 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5098 for marker in markers.iter().chain(&fast_markers) {
5099 let mut marker = marker.clone();
5100 marker.bounds.origin += hitbox.origin;
5101 window.paint_quad(marker);
5102 }
5103
5104 window.paint_quad(quad(
5105 thumb_bounds,
5106 Corners::default(),
5107 cx.theme().colors().scrollbar_thumb_background,
5108 Edges {
5109 top: Pixels::ZERO,
5110 right: Pixels::ZERO,
5111 bottom: Pixels::ZERO,
5112 left: ScrollbarLayout::BORDER_WIDTH,
5113 },
5114 cx.theme().colors().scrollbar_thumb_border,
5115 ));
5116 });
5117 }
5118
5119 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5120
5121 window.on_mouse_event({
5122 let editor = self.editor.clone();
5123
5124 let hitbox = hitbox.clone();
5125
5126 let mut mouse_position = window.mouse_position();
5127 move |event: &MouseMoveEvent, phase, window, cx| {
5128 if phase == DispatchPhase::Capture {
5129 return;
5130 }
5131
5132 editor.update(cx, |editor, cx| {
5133 if event.pressed_button == Some(MouseButton::Left)
5134 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5135 {
5136 let y = mouse_position.y;
5137 let new_y = event.position.y;
5138 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5139 let mut position = editor.scroll_position(cx);
5140 position.y += (new_y - y) / text_unit_size;
5141 if position.y < 0.0 {
5142 position.y = 0.0;
5143 }
5144 editor.set_scroll_position(position, window, cx);
5145 }
5146 } else {
5147 editor.scroll_manager.set_is_dragging_scrollbar(
5148 Axis::Vertical,
5149 false,
5150 cx,
5151 );
5152
5153 if hitbox.is_hovered(window) {
5154 editor.scroll_manager.show_scrollbar(window, cx);
5155 }
5156 }
5157 mouse_position = event.position;
5158 })
5159 }
5160 });
5161
5162 if self
5163 .editor
5164 .read(cx)
5165 .scroll_manager
5166 .is_dragging_scrollbar(Axis::Vertical)
5167 {
5168 window.on_mouse_event({
5169 let editor = self.editor.clone();
5170 move |_: &MouseUpEvent, phase, _, cx| {
5171 if phase == DispatchPhase::Capture {
5172 return;
5173 }
5174
5175 editor.update(cx, |editor, cx| {
5176 editor.scroll_manager.set_is_dragging_scrollbar(
5177 Axis::Vertical,
5178 false,
5179 cx,
5180 );
5181 cx.stop_propagation();
5182 });
5183 }
5184 });
5185 } else {
5186 window.on_mouse_event({
5187 let editor = self.editor.clone();
5188
5189 move |event: &MouseDownEvent, phase, window, cx| {
5190 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5191 return;
5192 }
5193
5194 editor.update(cx, |editor, cx| {
5195 editor.scroll_manager.set_is_dragging_scrollbar(
5196 Axis::Vertical,
5197 true,
5198 cx,
5199 );
5200
5201 let y = event.position.y;
5202 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5203 let center_row =
5204 ((y - hitbox.top()) / text_unit_size).round() as u32;
5205 let top_row = center_row.saturating_sub(
5206 (visible_range.end - visible_range.start) as u32 / 2,
5207 );
5208 let mut position = editor.scroll_position(cx);
5209 position.y = top_row as f32;
5210 editor.set_scroll_position(position, window, cx);
5211 } else {
5212 editor.scroll_manager.show_scrollbar(window, cx);
5213 }
5214
5215 cx.stop_propagation();
5216 });
5217 }
5218 });
5219 }
5220 }
5221 }
5222
5223 fn collect_fast_scrollbar_markers(
5224 &self,
5225 layout: &EditorLayout,
5226 scrollbar_layout: &ScrollbarLayout,
5227 cx: &mut App,
5228 ) -> Vec<PaintQuad> {
5229 const LIMIT: usize = 100;
5230 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5231 return vec![];
5232 }
5233 let cursor_ranges = layout
5234 .cursors
5235 .iter()
5236 .map(|(point, color)| ColoredRange {
5237 start: point.row(),
5238 end: point.row(),
5239 color: *color,
5240 })
5241 .collect_vec();
5242 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5243 }
5244
5245 fn refresh_slow_scrollbar_markers(
5246 &self,
5247 layout: &EditorLayout,
5248 scrollbar_layout: &ScrollbarLayout,
5249 window: &mut Window,
5250 cx: &mut App,
5251 ) {
5252 self.editor.update(cx, |editor, cx| {
5253 if !editor.is_singleton(cx)
5254 || !editor
5255 .scrollbar_marker_state
5256 .should_refresh(scrollbar_layout.hitbox.size)
5257 {
5258 return;
5259 }
5260
5261 let scrollbar_layout = scrollbar_layout.clone();
5262 let background_highlights = editor.background_highlights.clone();
5263 let snapshot = layout.position_map.snapshot.clone();
5264 let theme = cx.theme().clone();
5265 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5266
5267 editor.scrollbar_marker_state.dirty = false;
5268 editor.scrollbar_marker_state.pending_refresh =
5269 Some(cx.spawn_in(window, |editor, mut cx| async move {
5270 let scrollbar_size = scrollbar_layout.hitbox.size;
5271 let scrollbar_markers = cx
5272 .background_executor()
5273 .spawn(async move {
5274 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5275 let mut marker_quads = Vec::new();
5276 if scrollbar_settings.git_diff {
5277 let marker_row_ranges =
5278 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5279 let start_display_row =
5280 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5281 .to_display_point(&snapshot.display_snapshot)
5282 .row();
5283 let mut end_display_row =
5284 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5285 .to_display_point(&snapshot.display_snapshot)
5286 .row();
5287 if end_display_row != start_display_row {
5288 end_display_row.0 -= 1;
5289 }
5290 let color = match &hunk.status() {
5291 DiffHunkStatus::Added(_) => theme.status().created,
5292 DiffHunkStatus::Modified(_) => theme.status().modified,
5293 DiffHunkStatus::Removed(_) => theme.status().deleted,
5294 };
5295 ColoredRange {
5296 start: start_display_row,
5297 end: end_display_row,
5298 color,
5299 }
5300 });
5301
5302 marker_quads.extend(
5303 scrollbar_layout
5304 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5305 );
5306 }
5307
5308 for (background_highlight_id, (_, background_ranges)) in
5309 background_highlights.iter()
5310 {
5311 let is_search_highlights = *background_highlight_id
5312 == TypeId::of::<BufferSearchHighlights>();
5313 let is_symbol_occurrences = *background_highlight_id
5314 == TypeId::of::<DocumentHighlightRead>()
5315 || *background_highlight_id
5316 == TypeId::of::<DocumentHighlightWrite>();
5317 if (is_search_highlights && scrollbar_settings.search_results)
5318 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5319 {
5320 let mut color = theme.status().info;
5321 if is_symbol_occurrences {
5322 color.fade_out(0.5);
5323 }
5324 let marker_row_ranges = background_ranges.iter().map(|range| {
5325 let display_start = range
5326 .start
5327 .to_display_point(&snapshot.display_snapshot);
5328 let display_end =
5329 range.end.to_display_point(&snapshot.display_snapshot);
5330 ColoredRange {
5331 start: display_start.row(),
5332 end: display_end.row(),
5333 color,
5334 }
5335 });
5336 marker_quads.extend(
5337 scrollbar_layout
5338 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5339 );
5340 }
5341 }
5342
5343 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5344 let diagnostics = snapshot
5345 .buffer_snapshot
5346 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5347 // Don't show diagnostics the user doesn't care about
5348 .filter(|diagnostic| {
5349 match (
5350 scrollbar_settings.diagnostics,
5351 diagnostic.diagnostic.severity,
5352 ) {
5353 (ScrollbarDiagnostics::All, _) => true,
5354 (
5355 ScrollbarDiagnostics::Error,
5356 DiagnosticSeverity::ERROR,
5357 ) => true,
5358 (
5359 ScrollbarDiagnostics::Warning,
5360 DiagnosticSeverity::ERROR
5361 | DiagnosticSeverity::WARNING,
5362 ) => true,
5363 (
5364 ScrollbarDiagnostics::Information,
5365 DiagnosticSeverity::ERROR
5366 | DiagnosticSeverity::WARNING
5367 | DiagnosticSeverity::INFORMATION,
5368 ) => true,
5369 (_, _) => false,
5370 }
5371 })
5372 // We want to sort by severity, in order to paint the most severe diagnostics last.
5373 .sorted_by_key(|diagnostic| {
5374 std::cmp::Reverse(diagnostic.diagnostic.severity)
5375 });
5376
5377 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5378 let start_display = diagnostic
5379 .range
5380 .start
5381 .to_display_point(&snapshot.display_snapshot);
5382 let end_display = diagnostic
5383 .range
5384 .end
5385 .to_display_point(&snapshot.display_snapshot);
5386 let color = match diagnostic.diagnostic.severity {
5387 DiagnosticSeverity::ERROR => theme.status().error,
5388 DiagnosticSeverity::WARNING => theme.status().warning,
5389 DiagnosticSeverity::INFORMATION => theme.status().info,
5390 _ => theme.status().hint,
5391 };
5392 ColoredRange {
5393 start: start_display.row(),
5394 end: end_display.row(),
5395 color,
5396 }
5397 });
5398 marker_quads.extend(
5399 scrollbar_layout
5400 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5401 );
5402 }
5403
5404 Arc::from(marker_quads)
5405 })
5406 .await;
5407
5408 editor.update(&mut cx, |editor, cx| {
5409 editor.scrollbar_marker_state.markers = scrollbar_markers;
5410 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5411 editor.scrollbar_marker_state.pending_refresh = None;
5412 cx.notify();
5413 })?;
5414
5415 Ok(())
5416 }));
5417 });
5418 }
5419
5420 #[allow(clippy::too_many_arguments)]
5421 fn paint_highlighted_range(
5422 &self,
5423 range: Range<DisplayPoint>,
5424 color: Hsla,
5425 corner_radius: Pixels,
5426 line_end_overshoot: Pixels,
5427 layout: &EditorLayout,
5428 window: &mut Window,
5429 ) {
5430 let start_row = layout.visible_display_row_range.start;
5431 let end_row = layout.visible_display_row_range.end;
5432 if range.start != range.end {
5433 let row_range = if range.end.column() == 0 {
5434 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5435 } else {
5436 cmp::max(range.start.row(), start_row)
5437 ..cmp::min(range.end.row().next_row(), end_row)
5438 };
5439
5440 let highlighted_range = HighlightedRange {
5441 color,
5442 line_height: layout.position_map.line_height,
5443 corner_radius,
5444 start_y: layout.content_origin.y
5445 + row_range.start.as_f32() * layout.position_map.line_height
5446 - layout.position_map.scroll_pixel_position.y,
5447 lines: row_range
5448 .iter_rows()
5449 .map(|row| {
5450 let line_layout =
5451 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5452 HighlightedRangeLine {
5453 start_x: if row == range.start.row() {
5454 layout.content_origin.x
5455 + line_layout.x_for_index(range.start.column() as usize)
5456 - layout.position_map.scroll_pixel_position.x
5457 } else {
5458 layout.content_origin.x
5459 - layout.position_map.scroll_pixel_position.x
5460 },
5461 end_x: if row == range.end.row() {
5462 layout.content_origin.x
5463 + line_layout.x_for_index(range.end.column() as usize)
5464 - layout.position_map.scroll_pixel_position.x
5465 } else {
5466 layout.content_origin.x + line_layout.width + line_end_overshoot
5467 - layout.position_map.scroll_pixel_position.x
5468 },
5469 }
5470 })
5471 .collect(),
5472 };
5473
5474 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5475 }
5476 }
5477
5478 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5479 if let Some(mut inline_blame) = layout.inline_blame.take() {
5480 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5481 inline_blame.paint(window, cx);
5482 })
5483 }
5484 }
5485
5486 fn paint_diff_hunk_controls(
5487 &mut self,
5488 layout: &mut EditorLayout,
5489 window: &mut Window,
5490 cx: &mut App,
5491 ) {
5492 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5493 diff_hunk_control.paint(window, cx);
5494 }
5495 }
5496
5497 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5498 for mut block in layout.blocks.drain(..) {
5499 block.element.paint(window, cx);
5500 }
5501 }
5502
5503 fn paint_inline_completion_popover(
5504 &mut self,
5505 layout: &mut EditorLayout,
5506 window: &mut Window,
5507 cx: &mut App,
5508 ) {
5509 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5510 inline_completion_popover.paint(window, cx);
5511 }
5512 }
5513
5514 fn paint_mouse_context_menu(
5515 &mut self,
5516 layout: &mut EditorLayout,
5517 window: &mut Window,
5518 cx: &mut App,
5519 ) {
5520 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5521 mouse_context_menu.paint(window, cx);
5522 }
5523 }
5524
5525 fn paint_scroll_wheel_listener(
5526 &mut self,
5527 layout: &EditorLayout,
5528 window: &mut Window,
5529 cx: &mut App,
5530 ) {
5531 window.on_mouse_event({
5532 let position_map = layout.position_map.clone();
5533 let editor = self.editor.clone();
5534 let hitbox = layout.hitbox.clone();
5535 let mut delta = ScrollDelta::default();
5536
5537 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5538 // accidentally turn off their scrolling.
5539 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5540
5541 move |event: &ScrollWheelEvent, phase, window, cx| {
5542 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5543 delta = delta.coalesce(event.delta);
5544 editor.update(cx, |editor, cx| {
5545 let position_map: &PositionMap = &position_map;
5546
5547 let line_height = position_map.line_height;
5548 let max_glyph_width = position_map.em_width;
5549 let (delta, axis) = match delta {
5550 gpui::ScrollDelta::Pixels(mut pixels) => {
5551 //Trackpad
5552 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5553 (pixels, axis)
5554 }
5555
5556 gpui::ScrollDelta::Lines(lines) => {
5557 //Not trackpad
5558 let pixels =
5559 point(lines.x * max_glyph_width, lines.y * line_height);
5560 (pixels, None)
5561 }
5562 };
5563
5564 let current_scroll_position = position_map.snapshot.scroll_position();
5565 let x = (current_scroll_position.x * max_glyph_width
5566 - (delta.x * scroll_sensitivity))
5567 / max_glyph_width;
5568 let y = (current_scroll_position.y * line_height
5569 - (delta.y * scroll_sensitivity))
5570 / line_height;
5571 let mut scroll_position =
5572 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5573 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5574 if forbid_vertical_scroll {
5575 scroll_position.y = current_scroll_position.y;
5576 }
5577
5578 if scroll_position != current_scroll_position {
5579 editor.scroll(scroll_position, axis, window, cx);
5580 cx.stop_propagation();
5581 } else if y < 0. {
5582 // Due to clamping, we may fail to detect cases of overscroll to the top;
5583 // We want the scroll manager to get an update in such cases and detect the change of direction
5584 // on the next frame.
5585 cx.notify();
5586 }
5587 });
5588 }
5589 }
5590 });
5591 }
5592
5593 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5594 self.paint_scroll_wheel_listener(layout, window, cx);
5595
5596 window.on_mouse_event({
5597 let position_map = layout.position_map.clone();
5598 let editor = self.editor.clone();
5599 let multi_buffer_range =
5600 layout
5601 .display_hunks
5602 .iter()
5603 .find_map(|(hunk, hunk_hitbox)| match hunk {
5604 DisplayDiffHunk::Folded { .. } => None,
5605 DisplayDiffHunk::Unfolded {
5606 multi_buffer_range, ..
5607 } => {
5608 if hunk_hitbox
5609 .as_ref()
5610 .map(|hitbox| hitbox.is_hovered(window))
5611 .unwrap_or(false)
5612 {
5613 Some(multi_buffer_range.clone())
5614 } else {
5615 None
5616 }
5617 }
5618 });
5619 let line_numbers = layout.line_numbers.clone();
5620
5621 move |event: &MouseDownEvent, phase, window, cx| {
5622 if phase == DispatchPhase::Bubble {
5623 match event.button {
5624 MouseButton::Left => editor.update(cx, |editor, cx| {
5625 let pending_mouse_down = editor
5626 .pending_mouse_down
5627 .get_or_insert_with(Default::default)
5628 .clone();
5629
5630 *pending_mouse_down.borrow_mut() = Some(event.clone());
5631
5632 Self::mouse_left_down(
5633 editor,
5634 event,
5635 multi_buffer_range.clone(),
5636 &position_map,
5637 line_numbers.as_ref(),
5638 window,
5639 cx,
5640 );
5641 }),
5642 MouseButton::Right => editor.update(cx, |editor, cx| {
5643 Self::mouse_right_down(editor, event, &position_map, window, cx);
5644 }),
5645 MouseButton::Middle => editor.update(cx, |editor, cx| {
5646 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5647 }),
5648 _ => {}
5649 };
5650 }
5651 }
5652 });
5653
5654 window.on_mouse_event({
5655 let editor = self.editor.clone();
5656 let position_map = layout.position_map.clone();
5657
5658 move |event: &MouseUpEvent, phase, window, cx| {
5659 if phase == DispatchPhase::Bubble {
5660 editor.update(cx, |editor, cx| {
5661 Self::mouse_up(editor, event, &position_map, window, cx)
5662 });
5663 }
5664 }
5665 });
5666
5667 window.on_mouse_event({
5668 let editor = self.editor.clone();
5669 let position_map = layout.position_map.clone();
5670 let mut captured_mouse_down = None;
5671
5672 move |event: &MouseUpEvent, phase, window, cx| match phase {
5673 // Clear the pending mouse down during the capture phase,
5674 // so that it happens even if another event handler stops
5675 // propagation.
5676 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5677 let pending_mouse_down = editor
5678 .pending_mouse_down
5679 .get_or_insert_with(Default::default)
5680 .clone();
5681
5682 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5683 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5684 captured_mouse_down = pending_mouse_down.take();
5685 window.refresh();
5686 }
5687 }),
5688 // Fire click handlers during the bubble phase.
5689 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5690 if let Some(mouse_down) = captured_mouse_down.take() {
5691 let event = ClickEvent {
5692 down: mouse_down,
5693 up: event.clone(),
5694 };
5695 Self::click(editor, &event, &position_map, window, cx);
5696 }
5697 }),
5698 }
5699 });
5700
5701 window.on_mouse_event({
5702 let position_map = layout.position_map.clone();
5703 let editor = self.editor.clone();
5704
5705 move |event: &MouseMoveEvent, phase, window, cx| {
5706 if phase == DispatchPhase::Bubble {
5707 editor.update(cx, |editor, cx| {
5708 if editor.hover_state.focused(window, cx) {
5709 return;
5710 }
5711 if event.pressed_button == Some(MouseButton::Left)
5712 || event.pressed_button == Some(MouseButton::Middle)
5713 {
5714 Self::mouse_dragged(editor, event, &position_map, window, cx)
5715 }
5716
5717 Self::mouse_moved(editor, event, &position_map, window, cx)
5718 });
5719 }
5720 }
5721 });
5722 }
5723
5724 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5725 bounds.top_right().x - self.style.scrollbar_width
5726 }
5727
5728 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5729 let style = &self.style;
5730 let font_size = style.text.font_size.to_pixels(window.rem_size());
5731 let layout = window
5732 .text_system()
5733 .shape_line(
5734 SharedString::from(" ".repeat(column)),
5735 font_size,
5736 &[TextRun {
5737 len: column,
5738 font: style.text.font(),
5739 color: Hsla::default(),
5740 background_color: None,
5741 underline: None,
5742 strikethrough: None,
5743 }],
5744 )
5745 .unwrap();
5746
5747 layout.width
5748 }
5749
5750 fn max_line_number_width(
5751 &self,
5752 snapshot: &EditorSnapshot,
5753 window: &mut Window,
5754 cx: &mut App,
5755 ) -> Pixels {
5756 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5757 self.column_pixels(digit_count, window, cx)
5758 }
5759
5760 fn shape_line_number(
5761 &self,
5762 text: SharedString,
5763 color: Hsla,
5764 window: &mut Window,
5765 ) -> anyhow::Result<ShapedLine> {
5766 let run = TextRun {
5767 len: text.len(),
5768 font: self.style.text.font(),
5769 color,
5770 background_color: None,
5771 underline: None,
5772 strikethrough: None,
5773 };
5774 window.text_system().shape_line(
5775 text,
5776 self.style.text.font_size.to_pixels(window.rem_size()),
5777 &[run],
5778 )
5779 }
5780}
5781
5782fn header_jump_data(
5783 snapshot: &EditorSnapshot,
5784 block_row_start: DisplayRow,
5785 height: u32,
5786 for_excerpt: &ExcerptInfo,
5787) -> JumpData {
5788 let range = &for_excerpt.range;
5789 let buffer = &for_excerpt.buffer;
5790 let jump_anchor = range
5791 .primary
5792 .as_ref()
5793 .map_or(range.context.start, |primary| primary.start);
5794
5795 let excerpt_start = range.context.start;
5796 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5797 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5798 0
5799 } else {
5800 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5801 jump_position.row.saturating_sub(excerpt_start_point.row)
5802 };
5803
5804 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5805 .saturating_sub(
5806 snapshot
5807 .scroll_anchor
5808 .scroll_position(&snapshot.display_snapshot)
5809 .y as u32,
5810 );
5811
5812 JumpData::MultiBufferPoint {
5813 excerpt_id: for_excerpt.id,
5814 anchor: jump_anchor,
5815 position: jump_position,
5816 line_offset_from_top,
5817 }
5818}
5819
5820pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5821
5822impl AcceptEditPredictionBinding {
5823 pub fn keystroke(&self) -> Option<&Keystroke> {
5824 if let Some(binding) = self.0.as_ref() {
5825 match &binding.keystrokes() {
5826 [keystroke] => Some(keystroke),
5827 _ => None,
5828 }
5829 } else {
5830 None
5831 }
5832 }
5833}
5834
5835struct AcceptEditPredictionsBindingValidator;
5836
5837inventory::submit! { KeyBindingValidatorRegistration(|| Box::new(AcceptEditPredictionsBindingValidator)) }
5838
5839impl KeyBindingValidator for AcceptEditPredictionsBindingValidator {
5840 fn action_type_id(&self) -> TypeId {
5841 TypeId::of::<AcceptEditPrediction>()
5842 }
5843
5844 fn validate(&self, binding: &gpui::KeyBinding) -> Result<(), MarkdownString> {
5845 use KeyBindingContextPredicate::*;
5846
5847 if binding.keystrokes().len() == 1 && binding.keystrokes()[0].modifiers.modified() {
5848 return Ok(());
5849 }
5850 let required_predicate =
5851 Not(Identifier(EDIT_PREDICTION_REQUIRES_MODIFIER_KEY_CONTEXT.into()).into());
5852 match binding.predicate() {
5853 Some(predicate) if required_predicate.is_superset(&predicate) => {
5854 return Ok(());
5855 }
5856 _ => {}
5857 }
5858 Err(MarkdownString(format!(
5859 "{} can only be bound to a single keystroke with modifiers, so \
5860 that holding down these modifiers can be used to preview \
5861 completions inline when the completions menu is open.\n\n\
5862 This restriction does not apply when the context requires {}, \
5863 since these bindings will not be used when the completions menu \
5864 is open.",
5865 MarkdownString::inline_code(AcceptEditPrediction.name()),
5866 MarkdownString::inline_code(&format!(
5867 "!{}",
5868 EDIT_PREDICTION_REQUIRES_MODIFIER_KEY_CONTEXT
5869 )),
5870 )))
5871 }
5872}
5873
5874#[allow(clippy::too_many_arguments)]
5875fn prepaint_gutter_button(
5876 button: IconButton,
5877 row: DisplayRow,
5878 line_height: Pixels,
5879 gutter_dimensions: &GutterDimensions,
5880 scroll_pixel_position: gpui::Point<Pixels>,
5881 gutter_hitbox: &Hitbox,
5882 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5883 window: &mut Window,
5884 cx: &mut App,
5885) -> AnyElement {
5886 let mut button = button.into_any_element();
5887 let available_space = size(
5888 AvailableSpace::MinContent,
5889 AvailableSpace::Definite(line_height),
5890 );
5891 let indicator_size = button.layout_as_root(available_space, window, cx);
5892
5893 let blame_width = gutter_dimensions.git_blame_entries_width;
5894 let gutter_width = rows_with_hunk_bounds
5895 .get(&row)
5896 .map(|bounds| bounds.size.width);
5897 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5898
5899 let mut x = left_offset;
5900 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5901 - indicator_size.width
5902 - left_offset;
5903 x += available_width / 2.;
5904
5905 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5906 y += (line_height - indicator_size.height) / 2.;
5907
5908 button.prepaint_as_root(
5909 gutter_hitbox.origin + point(x, y),
5910 available_space,
5911 window,
5912 cx,
5913 );
5914 button
5915}
5916
5917fn render_inline_blame_entry(
5918 blame: &gpui::Entity<GitBlame>,
5919 blame_entry: BlameEntry,
5920 style: &EditorStyle,
5921 workspace: Option<WeakEntity<Workspace>>,
5922 cx: &mut App,
5923) -> AnyElement {
5924 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5925
5926 let author = blame_entry.author.as_deref().unwrap_or_default();
5927 let summary_enabled = ProjectSettings::get_global(cx)
5928 .git
5929 .show_inline_commit_summary();
5930
5931 let text = match blame_entry.summary.as_ref() {
5932 Some(summary) if summary_enabled => {
5933 format!("{}, {} - {}", author, relative_timestamp, summary)
5934 }
5935 _ => format!("{}, {}", author, relative_timestamp),
5936 };
5937
5938 let details = blame.read(cx).details_for_entry(&blame_entry);
5939
5940 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5941
5942 h_flex()
5943 .id("inline-blame")
5944 .w_full()
5945 .font_family(style.text.font().family)
5946 .text_color(cx.theme().status().hint)
5947 .line_height(style.text.line_height)
5948 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5949 .child(text)
5950 .gap_2()
5951 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5952 .into_any()
5953}
5954
5955fn render_blame_entry(
5956 ix: usize,
5957 blame: &gpui::Entity<GitBlame>,
5958 blame_entry: BlameEntry,
5959 style: &EditorStyle,
5960 last_used_color: &mut Option<(PlayerColor, Oid)>,
5961 editor: Entity<Editor>,
5962 cx: &mut App,
5963) -> AnyElement {
5964 let mut sha_color = cx
5965 .theme()
5966 .players()
5967 .color_for_participant(blame_entry.sha.into());
5968 // If the last color we used is the same as the one we get for this line, but
5969 // the commit SHAs are different, then we try again to get a different color.
5970 match *last_used_color {
5971 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5972 let index: u32 = blame_entry.sha.into();
5973 sha_color = cx.theme().players().color_for_participant(index + 1);
5974 }
5975 _ => {}
5976 };
5977 last_used_color.replace((sha_color, blame_entry.sha));
5978
5979 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5980
5981 let short_commit_id = blame_entry.sha.display_short();
5982
5983 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5984 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5985
5986 let details = blame.read(cx).details_for_entry(&blame_entry);
5987
5988 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5989
5990 let tooltip =
5991 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
5992
5993 h_flex()
5994 .w_full()
5995 .justify_between()
5996 .font_family(style.text.font().family)
5997 .line_height(style.text.line_height)
5998 .id(("blame", ix))
5999 .text_color(cx.theme().status().hint)
6000 .pr_2()
6001 .gap_2()
6002 .child(
6003 h_flex()
6004 .items_center()
6005 .gap_2()
6006 .child(div().text_color(sha_color.cursor).child(short_commit_id))
6007 .child(name),
6008 )
6009 .child(relative_timestamp)
6010 .on_mouse_down(MouseButton::Right, {
6011 let blame_entry = blame_entry.clone();
6012 let details = details.clone();
6013 move |event, window, cx| {
6014 deploy_blame_entry_context_menu(
6015 &blame_entry,
6016 details.as_ref(),
6017 editor.clone(),
6018 event.position,
6019 window,
6020 cx,
6021 );
6022 }
6023 })
6024 .hover(|style| style.bg(cx.theme().colors().element_hover))
6025 .when_some(
6026 details.and_then(|details| details.permalink),
6027 |this, url| {
6028 let url = url.clone();
6029 this.cursor_pointer().on_click(move |_, _, cx| {
6030 cx.stop_propagation();
6031 cx.open_url(url.as_str())
6032 })
6033 },
6034 )
6035 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6036 .into_any()
6037}
6038
6039fn deploy_blame_entry_context_menu(
6040 blame_entry: &BlameEntry,
6041 details: Option<&CommitDetails>,
6042 editor: Entity<Editor>,
6043 position: gpui::Point<Pixels>,
6044 window: &mut Window,
6045 cx: &mut App,
6046) {
6047 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6048 let sha = format!("{}", blame_entry.sha);
6049 menu.on_blur_subscription(Subscription::new(|| {}))
6050 .entry("Copy commit SHA", None, move |_, cx| {
6051 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6052 })
6053 .when_some(
6054 details.and_then(|details| details.permalink.clone()),
6055 |this, url| {
6056 this.entry("Open permalink", None, move |_, cx| {
6057 cx.open_url(url.as_str())
6058 })
6059 },
6060 )
6061 });
6062
6063 editor.update(cx, move |editor, cx| {
6064 editor.mouse_context_menu = Some(MouseContextMenu::new(
6065 MenuPosition::PinnedToScreen(position),
6066 context_menu,
6067 window,
6068 cx,
6069 ));
6070 cx.notify();
6071 });
6072}
6073
6074#[derive(Debug)]
6075pub(crate) struct LineWithInvisibles {
6076 fragments: SmallVec<[LineFragment; 1]>,
6077 invisibles: Vec<Invisible>,
6078 len: usize,
6079 width: Pixels,
6080 font_size: Pixels,
6081}
6082
6083#[allow(clippy::large_enum_variant)]
6084enum LineFragment {
6085 Text(ShapedLine),
6086 Element {
6087 element: Option<AnyElement>,
6088 size: Size<Pixels>,
6089 len: usize,
6090 },
6091}
6092
6093impl fmt::Debug for LineFragment {
6094 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6095 match self {
6096 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6097 LineFragment::Element { size, len, .. } => f
6098 .debug_struct("Element")
6099 .field("size", size)
6100 .field("len", len)
6101 .finish(),
6102 }
6103 }
6104}
6105
6106impl LineWithInvisibles {
6107 #[allow(clippy::too_many_arguments)]
6108 fn from_chunks<'a>(
6109 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6110 editor_style: &EditorStyle,
6111 max_line_len: usize,
6112 max_line_count: usize,
6113 editor_mode: EditorMode,
6114 text_width: Pixels,
6115 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6116 window: &mut Window,
6117 cx: &mut App,
6118 ) -> Vec<Self> {
6119 let text_style = &editor_style.text;
6120 let mut layouts = Vec::with_capacity(max_line_count);
6121 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6122 let mut line = String::new();
6123 let mut invisibles = Vec::new();
6124 let mut width = Pixels::ZERO;
6125 let mut len = 0;
6126 let mut styles = Vec::new();
6127 let mut non_whitespace_added = false;
6128 let mut row = 0;
6129 let mut line_exceeded_max_len = false;
6130 let font_size = text_style.font_size.to_pixels(window.rem_size());
6131
6132 let ellipsis = SharedString::from("⋯");
6133
6134 for highlighted_chunk in chunks.chain([HighlightedChunk {
6135 text: "\n",
6136 style: None,
6137 is_tab: false,
6138 replacement: None,
6139 }]) {
6140 if let Some(replacement) = highlighted_chunk.replacement {
6141 if !line.is_empty() {
6142 let shaped_line = window
6143 .text_system()
6144 .shape_line(line.clone().into(), font_size, &styles)
6145 .unwrap();
6146 width += shaped_line.width;
6147 len += shaped_line.len;
6148 fragments.push(LineFragment::Text(shaped_line));
6149 line.clear();
6150 styles.clear();
6151 }
6152
6153 match replacement {
6154 ChunkReplacement::Renderer(renderer) => {
6155 let available_width = if renderer.constrain_width {
6156 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6157 ellipsis.clone()
6158 } else {
6159 SharedString::from(Arc::from(highlighted_chunk.text))
6160 };
6161 let shaped_line = window
6162 .text_system()
6163 .shape_line(
6164 chunk,
6165 font_size,
6166 &[text_style.to_run(highlighted_chunk.text.len())],
6167 )
6168 .unwrap();
6169 AvailableSpace::Definite(shaped_line.width)
6170 } else {
6171 AvailableSpace::MinContent
6172 };
6173
6174 let mut element = (renderer.render)(&mut ChunkRendererContext {
6175 context: cx,
6176 window,
6177 max_width: text_width,
6178 });
6179 let line_height = text_style.line_height_in_pixels(window.rem_size());
6180 let size = element.layout_as_root(
6181 size(available_width, AvailableSpace::Definite(line_height)),
6182 window,
6183 cx,
6184 );
6185
6186 width += size.width;
6187 len += highlighted_chunk.text.len();
6188 fragments.push(LineFragment::Element {
6189 element: Some(element),
6190 size,
6191 len: highlighted_chunk.text.len(),
6192 });
6193 }
6194 ChunkReplacement::Str(x) => {
6195 let text_style = if let Some(style) = highlighted_chunk.style {
6196 Cow::Owned(text_style.clone().highlight(style))
6197 } else {
6198 Cow::Borrowed(text_style)
6199 };
6200
6201 let run = TextRun {
6202 len: x.len(),
6203 font: text_style.font(),
6204 color: text_style.color,
6205 background_color: text_style.background_color,
6206 underline: text_style.underline,
6207 strikethrough: text_style.strikethrough,
6208 };
6209 let line_layout = window
6210 .text_system()
6211 .shape_line(x, font_size, &[run])
6212 .unwrap()
6213 .with_len(highlighted_chunk.text.len());
6214
6215 width += line_layout.width;
6216 len += highlighted_chunk.text.len();
6217 fragments.push(LineFragment::Text(line_layout))
6218 }
6219 }
6220 } else {
6221 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6222 if ix > 0 {
6223 let shaped_line = window
6224 .text_system()
6225 .shape_line(line.clone().into(), font_size, &styles)
6226 .unwrap();
6227 width += shaped_line.width;
6228 len += shaped_line.len;
6229 fragments.push(LineFragment::Text(shaped_line));
6230 layouts.push(Self {
6231 width: mem::take(&mut width),
6232 len: mem::take(&mut len),
6233 fragments: mem::take(&mut fragments),
6234 invisibles: std::mem::take(&mut invisibles),
6235 font_size,
6236 });
6237
6238 line.clear();
6239 styles.clear();
6240 row += 1;
6241 line_exceeded_max_len = false;
6242 non_whitespace_added = false;
6243 if row == max_line_count {
6244 return layouts;
6245 }
6246 }
6247
6248 if !line_chunk.is_empty() && !line_exceeded_max_len {
6249 let text_style = if let Some(style) = highlighted_chunk.style {
6250 Cow::Owned(text_style.clone().highlight(style))
6251 } else {
6252 Cow::Borrowed(text_style)
6253 };
6254
6255 if line.len() + line_chunk.len() > max_line_len {
6256 let mut chunk_len = max_line_len - line.len();
6257 while !line_chunk.is_char_boundary(chunk_len) {
6258 chunk_len -= 1;
6259 }
6260 line_chunk = &line_chunk[..chunk_len];
6261 line_exceeded_max_len = true;
6262 }
6263
6264 styles.push(TextRun {
6265 len: line_chunk.len(),
6266 font: text_style.font(),
6267 color: text_style.color,
6268 background_color: text_style.background_color,
6269 underline: text_style.underline,
6270 strikethrough: text_style.strikethrough,
6271 });
6272
6273 if editor_mode == EditorMode::Full {
6274 // Line wrap pads its contents with fake whitespaces,
6275 // avoid printing them
6276 let is_soft_wrapped = is_row_soft_wrapped(row);
6277 if highlighted_chunk.is_tab {
6278 if non_whitespace_added || !is_soft_wrapped {
6279 invisibles.push(Invisible::Tab {
6280 line_start_offset: line.len(),
6281 line_end_offset: line.len() + line_chunk.len(),
6282 });
6283 }
6284 } else {
6285 invisibles.extend(line_chunk.char_indices().filter_map(
6286 |(index, c)| {
6287 let is_whitespace = c.is_whitespace();
6288 non_whitespace_added |= !is_whitespace;
6289 if is_whitespace
6290 && (non_whitespace_added || !is_soft_wrapped)
6291 {
6292 Some(Invisible::Whitespace {
6293 line_offset: line.len() + index,
6294 })
6295 } else {
6296 None
6297 }
6298 },
6299 ))
6300 }
6301 }
6302
6303 line.push_str(line_chunk);
6304 }
6305 }
6306 }
6307 }
6308
6309 layouts
6310 }
6311
6312 #[allow(clippy::too_many_arguments)]
6313 fn prepaint(
6314 &mut self,
6315 line_height: Pixels,
6316 scroll_pixel_position: gpui::Point<Pixels>,
6317 row: DisplayRow,
6318 content_origin: gpui::Point<Pixels>,
6319 line_elements: &mut SmallVec<[AnyElement; 1]>,
6320 window: &mut Window,
6321 cx: &mut App,
6322 ) {
6323 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6324 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6325 for fragment in &mut self.fragments {
6326 match fragment {
6327 LineFragment::Text(line) => {
6328 fragment_origin.x += line.width;
6329 }
6330 LineFragment::Element { element, size, .. } => {
6331 let mut element = element
6332 .take()
6333 .expect("you can't prepaint LineWithInvisibles twice");
6334
6335 // Center the element vertically within the line.
6336 let mut element_origin = fragment_origin;
6337 element_origin.y += (line_height - size.height) / 2.;
6338 element.prepaint_at(element_origin, window, cx);
6339 line_elements.push(element);
6340
6341 fragment_origin.x += size.width;
6342 }
6343 }
6344 }
6345 }
6346
6347 #[allow(clippy::too_many_arguments)]
6348 fn draw(
6349 &self,
6350 layout: &EditorLayout,
6351 row: DisplayRow,
6352 content_origin: gpui::Point<Pixels>,
6353 whitespace_setting: ShowWhitespaceSetting,
6354 selection_ranges: &[Range<DisplayPoint>],
6355 window: &mut Window,
6356 cx: &mut App,
6357 ) {
6358 let line_height = layout.position_map.line_height;
6359 let line_y = line_height
6360 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6361
6362 let mut fragment_origin =
6363 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6364
6365 for fragment in &self.fragments {
6366 match fragment {
6367 LineFragment::Text(line) => {
6368 line.paint(fragment_origin, line_height, window, cx)
6369 .log_err();
6370 fragment_origin.x += line.width;
6371 }
6372 LineFragment::Element { size, .. } => {
6373 fragment_origin.x += size.width;
6374 }
6375 }
6376 }
6377
6378 self.draw_invisibles(
6379 selection_ranges,
6380 layout,
6381 content_origin,
6382 line_y,
6383 row,
6384 line_height,
6385 whitespace_setting,
6386 window,
6387 cx,
6388 );
6389 }
6390
6391 #[allow(clippy::too_many_arguments)]
6392 fn draw_invisibles(
6393 &self,
6394 selection_ranges: &[Range<DisplayPoint>],
6395 layout: &EditorLayout,
6396 content_origin: gpui::Point<Pixels>,
6397 line_y: Pixels,
6398 row: DisplayRow,
6399 line_height: Pixels,
6400 whitespace_setting: ShowWhitespaceSetting,
6401 window: &mut Window,
6402 cx: &mut App,
6403 ) {
6404 let extract_whitespace_info = |invisible: &Invisible| {
6405 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6406 Invisible::Tab {
6407 line_start_offset,
6408 line_end_offset,
6409 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6410 Invisible::Whitespace { line_offset } => {
6411 (*line_offset, line_offset + 1, &layout.space_invisible)
6412 }
6413 };
6414
6415 let x_offset = self.x_for_index(token_offset);
6416 let invisible_offset =
6417 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6418 let origin = content_origin
6419 + gpui::point(
6420 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6421 line_y,
6422 );
6423
6424 (
6425 [token_offset, token_end_offset],
6426 Box::new(move |window: &mut Window, cx: &mut App| {
6427 invisible_symbol
6428 .paint(origin, line_height, window, cx)
6429 .log_err();
6430 }),
6431 )
6432 };
6433
6434 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6435 match whitespace_setting {
6436 ShowWhitespaceSetting::None => (),
6437 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6438 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6439 let invisible_point = DisplayPoint::new(row, start as u32);
6440 if !selection_ranges
6441 .iter()
6442 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6443 {
6444 return;
6445 }
6446
6447 paint(window, cx);
6448 }),
6449
6450 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6451 // - It is a tab
6452 // - It is adjacent to an edge (start or end)
6453 // - It is adjacent to a whitespace (left or right)
6454 ShowWhitespaceSetting::Boundary => {
6455 // 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
6456 // the above cases.
6457 // Note: We zip in the original `invisibles` to check for tab equality
6458 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6459 for (([start, end], paint), invisible) in
6460 invisible_iter.zip_eq(self.invisibles.iter())
6461 {
6462 let should_render = match (&last_seen, invisible) {
6463 (_, Invisible::Tab { .. }) => true,
6464 (Some((_, last_end, _)), _) => *last_end == start,
6465 _ => false,
6466 };
6467
6468 if should_render || start == 0 || end == self.len {
6469 paint(window, cx);
6470
6471 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6472 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6473 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6474 // Note that we need to make sure that the last one is actually adjacent
6475 if !should_render_last && last_end == start {
6476 paint_last(window, cx);
6477 }
6478 }
6479 }
6480
6481 // Manually render anything within a selection
6482 let invisible_point = DisplayPoint::new(row, start as u32);
6483 if selection_ranges.iter().any(|region| {
6484 region.start <= invisible_point && invisible_point < region.end
6485 }) {
6486 paint(window, cx);
6487 }
6488
6489 last_seen = Some((should_render, end, paint));
6490 }
6491 }
6492 }
6493 }
6494
6495 pub fn x_for_index(&self, index: usize) -> Pixels {
6496 let mut fragment_start_x = Pixels::ZERO;
6497 let mut fragment_start_index = 0;
6498
6499 for fragment in &self.fragments {
6500 match fragment {
6501 LineFragment::Text(shaped_line) => {
6502 let fragment_end_index = fragment_start_index + shaped_line.len;
6503 if index < fragment_end_index {
6504 return fragment_start_x
6505 + shaped_line.x_for_index(index - fragment_start_index);
6506 }
6507 fragment_start_x += shaped_line.width;
6508 fragment_start_index = fragment_end_index;
6509 }
6510 LineFragment::Element { len, size, .. } => {
6511 let fragment_end_index = fragment_start_index + len;
6512 if index < fragment_end_index {
6513 return fragment_start_x;
6514 }
6515 fragment_start_x += size.width;
6516 fragment_start_index = fragment_end_index;
6517 }
6518 }
6519 }
6520
6521 fragment_start_x
6522 }
6523
6524 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6525 let mut fragment_start_x = Pixels::ZERO;
6526 let mut fragment_start_index = 0;
6527
6528 for fragment in &self.fragments {
6529 match fragment {
6530 LineFragment::Text(shaped_line) => {
6531 let fragment_end_x = fragment_start_x + shaped_line.width;
6532 if x < fragment_end_x {
6533 return Some(
6534 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6535 );
6536 }
6537 fragment_start_x = fragment_end_x;
6538 fragment_start_index += shaped_line.len;
6539 }
6540 LineFragment::Element { len, size, .. } => {
6541 let fragment_end_x = fragment_start_x + size.width;
6542 if x < fragment_end_x {
6543 return Some(fragment_start_index);
6544 }
6545 fragment_start_index += len;
6546 fragment_start_x = fragment_end_x;
6547 }
6548 }
6549 }
6550
6551 None
6552 }
6553
6554 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6555 let mut fragment_start_index = 0;
6556
6557 for fragment in &self.fragments {
6558 match fragment {
6559 LineFragment::Text(shaped_line) => {
6560 let fragment_end_index = fragment_start_index + shaped_line.len;
6561 if index < fragment_end_index {
6562 return shaped_line.font_id_for_index(index - fragment_start_index);
6563 }
6564 fragment_start_index = fragment_end_index;
6565 }
6566 LineFragment::Element { len, .. } => {
6567 let fragment_end_index = fragment_start_index + len;
6568 if index < fragment_end_index {
6569 return None;
6570 }
6571 fragment_start_index = fragment_end_index;
6572 }
6573 }
6574 }
6575
6576 None
6577 }
6578}
6579
6580#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6581enum Invisible {
6582 /// A tab character
6583 ///
6584 /// A tab character is internally represented by spaces (configured by the user's tab width)
6585 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6586 /// adjacency checks.
6587 Tab {
6588 line_start_offset: usize,
6589 line_end_offset: usize,
6590 },
6591 Whitespace {
6592 line_offset: usize,
6593 },
6594}
6595
6596impl EditorElement {
6597 /// Returns the rem size to use when rendering the [`EditorElement`].
6598 ///
6599 /// This allows UI elements to scale based on the `buffer_font_size`.
6600 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6601 match self.editor.read(cx).mode {
6602 EditorMode::Full => {
6603 let buffer_font_size = self.style.text.font_size;
6604 match buffer_font_size {
6605 AbsoluteLength::Pixels(pixels) => {
6606 let rem_size_scale = {
6607 // Our default UI font size is 14px on a 16px base scale.
6608 // This means the default UI font size is 0.875rems.
6609 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6610
6611 // We then determine the delta between a single rem and the default font
6612 // size scale.
6613 let default_font_size_delta = 1. - default_font_size_scale;
6614
6615 // Finally, we add this delta to 1rem to get the scale factor that
6616 // should be used to scale up the UI.
6617 1. + default_font_size_delta
6618 };
6619
6620 Some(pixels * rem_size_scale)
6621 }
6622 AbsoluteLength::Rems(rems) => {
6623 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6624 }
6625 }
6626 }
6627 // We currently use single-line and auto-height editors in UI contexts,
6628 // so we don't want to scale everything with the buffer font size, as it
6629 // ends up looking off.
6630 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6631 }
6632 }
6633}
6634
6635impl Element for EditorElement {
6636 type RequestLayoutState = ();
6637 type PrepaintState = EditorLayout;
6638
6639 fn id(&self) -> Option<ElementId> {
6640 None
6641 }
6642
6643 fn request_layout(
6644 &mut self,
6645 _: Option<&GlobalElementId>,
6646 window: &mut Window,
6647 cx: &mut App,
6648 ) -> (gpui::LayoutId, ()) {
6649 let rem_size = self.rem_size(cx);
6650 window.with_rem_size(rem_size, |window| {
6651 self.editor.update(cx, |editor, cx| {
6652 editor.set_style(self.style.clone(), window, cx);
6653
6654 let layout_id = match editor.mode {
6655 EditorMode::SingleLine { auto_width } => {
6656 let rem_size = window.rem_size();
6657
6658 let height = self.style.text.line_height_in_pixels(rem_size);
6659 if auto_width {
6660 let editor_handle = cx.entity().clone();
6661 let style = self.style.clone();
6662 window.request_measured_layout(
6663 Style::default(),
6664 move |_, _, window, cx| {
6665 let editor_snapshot = editor_handle
6666 .update(cx, |editor, cx| editor.snapshot(window, cx));
6667 let line = Self::layout_lines(
6668 DisplayRow(0)..DisplayRow(1),
6669 &editor_snapshot,
6670 &style,
6671 px(f32::MAX),
6672 |_| false, // Single lines never soft wrap
6673 window,
6674 cx,
6675 )
6676 .pop()
6677 .unwrap();
6678
6679 let font_id =
6680 window.text_system().resolve_font(&style.text.font());
6681 let font_size =
6682 style.text.font_size.to_pixels(window.rem_size());
6683 let em_width =
6684 window.text_system().em_width(font_id, font_size).unwrap();
6685
6686 size(line.width + em_width, height)
6687 },
6688 )
6689 } else {
6690 let mut style = Style::default();
6691 style.size.height = height.into();
6692 style.size.width = relative(1.).into();
6693 window.request_layout(style, None, cx)
6694 }
6695 }
6696 EditorMode::AutoHeight { max_lines } => {
6697 let editor_handle = cx.entity().clone();
6698 let max_line_number_width =
6699 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6700 window.request_measured_layout(
6701 Style::default(),
6702 move |known_dimensions, available_space, window, cx| {
6703 editor_handle
6704 .update(cx, |editor, cx| {
6705 compute_auto_height_layout(
6706 editor,
6707 max_lines,
6708 max_line_number_width,
6709 known_dimensions,
6710 available_space.width,
6711 window,
6712 cx,
6713 )
6714 })
6715 .unwrap_or_default()
6716 },
6717 )
6718 }
6719 EditorMode::Full => {
6720 let mut style = Style::default();
6721 style.size.width = relative(1.).into();
6722 style.size.height = relative(1.).into();
6723 window.request_layout(style, None, cx)
6724 }
6725 };
6726
6727 (layout_id, ())
6728 })
6729 })
6730 }
6731
6732 fn prepaint(
6733 &mut self,
6734 _: Option<&GlobalElementId>,
6735 bounds: Bounds<Pixels>,
6736 _: &mut Self::RequestLayoutState,
6737 window: &mut Window,
6738 cx: &mut App,
6739 ) -> Self::PrepaintState {
6740 let text_style = TextStyleRefinement {
6741 font_size: Some(self.style.text.font_size),
6742 line_height: Some(self.style.text.line_height),
6743 ..Default::default()
6744 };
6745 let focus_handle = self.editor.focus_handle(cx);
6746 window.set_view_id(self.editor.entity_id());
6747 window.set_focus_handle(&focus_handle, cx);
6748
6749 let rem_size = self.rem_size(cx);
6750 window.with_rem_size(rem_size, |window| {
6751 window.with_text_style(Some(text_style), |window| {
6752 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6753 let mut snapshot = self
6754 .editor
6755 .update(cx, |editor, cx| editor.snapshot(window, cx));
6756 let style = self.style.clone();
6757
6758 let font_id = window.text_system().resolve_font(&style.text.font());
6759 let font_size = style.text.font_size.to_pixels(window.rem_size());
6760 let line_height = style.text.line_height_in_pixels(window.rem_size());
6761 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6762 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6763
6764 let letter_size = size(em_width, line_height);
6765
6766 let gutter_dimensions = snapshot
6767 .gutter_dimensions(
6768 font_id,
6769 font_size,
6770 self.max_line_number_width(&snapshot, window, cx),
6771 cx,
6772 )
6773 .unwrap_or_default();
6774 let text_width = bounds.size.width - gutter_dimensions.width;
6775
6776 let editor_width =
6777 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6778
6779 snapshot = self.editor.update(cx, |editor, cx| {
6780 editor.last_bounds = Some(bounds);
6781 editor.gutter_dimensions = gutter_dimensions;
6782 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6783
6784 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6785 snapshot
6786 } else {
6787 let wrap_width = match editor.soft_wrap_mode(cx) {
6788 SoftWrap::GitDiff => None,
6789 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6790 SoftWrap::EditorWidth => Some(editor_width),
6791 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6792 SoftWrap::Bounded(column) => {
6793 Some(editor_width.min(column as f32 * em_advance))
6794 }
6795 };
6796
6797 if editor.set_wrap_width(wrap_width, cx) {
6798 editor.snapshot(window, cx)
6799 } else {
6800 snapshot
6801 }
6802 }
6803 });
6804
6805 let wrap_guides = self
6806 .editor
6807 .read(cx)
6808 .wrap_guides(cx)
6809 .iter()
6810 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6811 .collect::<SmallVec<[_; 2]>>();
6812
6813 let hitbox = window.insert_hitbox(bounds, false);
6814 let gutter_hitbox =
6815 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6816 let text_hitbox = window.insert_hitbox(
6817 Bounds {
6818 origin: gutter_hitbox.top_right(),
6819 size: size(text_width, bounds.size.height),
6820 },
6821 false,
6822 );
6823 // Offset the content_bounds from the text_bounds by the gutter margin (which
6824 // is roughly half a character wide) to make hit testing work more like how we want.
6825 let content_origin =
6826 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6827
6828 let scrollbar_bounds =
6829 Bounds::from_corners(content_origin, bounds.bottom_right());
6830
6831 let height_in_lines = scrollbar_bounds.size.height / line_height;
6832
6833 // NOTE: The max row number in the current file, minus one
6834 let max_row = snapshot.max_point().row().as_f32();
6835
6836 // NOTE: The max scroll position for the top of the window
6837 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6838 (max_row - height_in_lines + 1.).max(0.)
6839 } else {
6840 let settings = EditorSettings::get_global(cx);
6841 match settings.scroll_beyond_last_line {
6842 ScrollBeyondLastLine::OnePage => max_row,
6843 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6844 ScrollBeyondLastLine::VerticalScrollMargin => {
6845 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6846 .max(0.)
6847 }
6848 }
6849 };
6850
6851 // TODO: Autoscrolling for both axes
6852 let mut autoscroll_request = None;
6853 let mut autoscroll_containing_element = false;
6854 let mut autoscroll_horizontally = false;
6855 self.editor.update(cx, |editor, cx| {
6856 autoscroll_request = editor.autoscroll_request();
6857 autoscroll_containing_element =
6858 autoscroll_request.is_some() || editor.has_pending_selection();
6859 // TODO: Is this horizontal or vertical?!
6860 autoscroll_horizontally = editor.autoscroll_vertically(
6861 bounds,
6862 line_height,
6863 max_scroll_top,
6864 window,
6865 cx,
6866 );
6867 snapshot = editor.snapshot(window, cx);
6868 });
6869
6870 let mut scroll_position = snapshot.scroll_position();
6871 // The scroll position is a fractional point, the whole number of which represents
6872 // the top of the window in terms of display rows.
6873 let start_row = DisplayRow(scroll_position.y as u32);
6874 let max_row = snapshot.max_point().row();
6875 let end_row = cmp::min(
6876 (scroll_position.y + height_in_lines).ceil() as u32,
6877 max_row.next_row().0,
6878 );
6879 let end_row = DisplayRow(end_row);
6880
6881 let row_infos = snapshot
6882 .row_infos(start_row)
6883 .take((start_row..end_row).len())
6884 .collect::<Vec<RowInfo>>();
6885 let is_row_soft_wrapped = |row: usize| {
6886 row_infos
6887 .get(row)
6888 .map_or(true, |info| info.buffer_row.is_none())
6889 };
6890
6891 let start_anchor = if start_row == Default::default() {
6892 Anchor::min()
6893 } else {
6894 snapshot.buffer_snapshot.anchor_before(
6895 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6896 )
6897 };
6898 let end_anchor = if end_row > max_row {
6899 Anchor::max()
6900 } else {
6901 snapshot.buffer_snapshot.anchor_before(
6902 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6903 )
6904 };
6905
6906 let (mut highlighted_rows, distinguish_unstaged_hunks) =
6907 self.editor.update(cx, |editor, cx| {
6908 (
6909 editor.highlighted_display_rows(window, cx),
6910 editor.distinguish_unstaged_diff_hunks,
6911 )
6912 });
6913
6914 for (ix, row_info) in row_infos.iter().enumerate() {
6915 let background = match row_info.diff_status {
6916 Some(DiffHunkStatus::Added(secondary_status)) => {
6917 let color = style.status.created_background;
6918 match secondary_status {
6919 DiffHunkSecondaryStatus::HasSecondaryHunk
6920 | DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk
6921 if distinguish_unstaged_hunks =>
6922 {
6923 pattern_slash(color, line_height.0 / 4.0)
6924 }
6925 _ => color.into(),
6926 }
6927 }
6928 Some(DiffHunkStatus::Removed(secondary_status)) => {
6929 let color = style.status.deleted_background;
6930 match secondary_status {
6931 DiffHunkSecondaryStatus::HasSecondaryHunk
6932 | DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk
6933 if distinguish_unstaged_hunks =>
6934 {
6935 pattern_slash(color, line_height.0 / 4.0)
6936 }
6937 _ => color.into(),
6938 }
6939 }
6940 _ => continue,
6941 };
6942
6943 highlighted_rows
6944 .entry(start_row + DisplayRow(ix as u32))
6945 .or_insert(background);
6946 }
6947
6948 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6949 start_anchor..end_anchor,
6950 &snapshot.display_snapshot,
6951 cx.theme().colors(),
6952 );
6953 let highlighted_gutter_ranges =
6954 self.editor.read(cx).gutter_highlights_in_range(
6955 start_anchor..end_anchor,
6956 &snapshot.display_snapshot,
6957 cx,
6958 );
6959
6960 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6961 start_anchor..end_anchor,
6962 &snapshot.display_snapshot,
6963 cx,
6964 );
6965
6966 let (local_selections, selected_buffer_ids): (
6967 Vec<Selection<Point>>,
6968 Vec<BufferId>,
6969 ) = self.editor.update(cx, |editor, cx| {
6970 let all_selections = editor.selections.all::<Point>(cx);
6971 let selected_buffer_ids = if editor.is_singleton(cx) {
6972 Vec::new()
6973 } else {
6974 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6975
6976 for selection in all_selections {
6977 for buffer_id in snapshot
6978 .buffer_snapshot
6979 .buffer_ids_for_range(selection.range())
6980 {
6981 if selected_buffer_ids.last() != Some(&buffer_id) {
6982 selected_buffer_ids.push(buffer_id);
6983 }
6984 }
6985 }
6986
6987 selected_buffer_ids
6988 };
6989
6990 let mut selections = editor
6991 .selections
6992 .disjoint_in_range(start_anchor..end_anchor, cx);
6993 selections.extend(editor.selections.pending(cx));
6994
6995 (selections, selected_buffer_ids)
6996 });
6997
6998 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6999 start_anchor,
7000 end_anchor,
7001 &local_selections,
7002 &snapshot,
7003 start_row,
7004 end_row,
7005 window,
7006 cx,
7007 );
7008
7009 let line_numbers = self.layout_line_numbers(
7010 Some(&gutter_hitbox),
7011 gutter_dimensions,
7012 line_height,
7013 scroll_position,
7014 start_row..end_row,
7015 &row_infos,
7016 newest_selection_head,
7017 &snapshot,
7018 window,
7019 cx,
7020 );
7021
7022 let mut crease_toggles =
7023 window.with_element_namespace("crease_toggles", |window| {
7024 self.layout_crease_toggles(
7025 start_row..end_row,
7026 &row_infos,
7027 &active_rows,
7028 &snapshot,
7029 window,
7030 cx,
7031 )
7032 });
7033 let crease_trailers =
7034 window.with_element_namespace("crease_trailers", |window| {
7035 self.layout_crease_trailers(
7036 row_infos.iter().copied(),
7037 &snapshot,
7038 window,
7039 cx,
7040 )
7041 });
7042
7043 let display_hunks = self.layout_gutter_diff_hunks(
7044 line_height,
7045 &gutter_hitbox,
7046 start_row..end_row,
7047 &snapshot,
7048 window,
7049 cx,
7050 );
7051
7052 let mut line_layouts = Self::layout_lines(
7053 start_row..end_row,
7054 &snapshot,
7055 &self.style,
7056 editor_width,
7057 is_row_soft_wrapped,
7058 window,
7059 cx,
7060 );
7061
7062 let longest_line_blame_width = self
7063 .editor
7064 .update(cx, |editor, cx| {
7065 if !editor.show_git_blame_inline {
7066 return None;
7067 }
7068 let blame = editor.blame.as_ref()?;
7069 let blame_entry = blame
7070 .update(cx, |blame, cx| {
7071 let row_infos =
7072 snapshot.row_infos(snapshot.longest_row()).next()?;
7073 blame.blame_for_rows(&[row_infos], cx).next()
7074 })
7075 .flatten()?;
7076 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7077 let mut element = render_inline_blame_entry(
7078 blame,
7079 blame_entry,
7080 &style,
7081 workspace,
7082 cx,
7083 );
7084 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7085 Some(
7086 element
7087 .layout_as_root(AvailableSpace::min_size(), window, cx)
7088 .width
7089 + inline_blame_padding,
7090 )
7091 })
7092 .unwrap_or(Pixels::ZERO);
7093
7094 let longest_line_width = layout_line(
7095 snapshot.longest_row(),
7096 &snapshot,
7097 &style,
7098 editor_width,
7099 is_row_soft_wrapped,
7100 window,
7101 cx,
7102 )
7103 .width;
7104
7105 let scrollbar_range_data = ScrollbarRangeData::new(
7106 scrollbar_bounds,
7107 letter_size,
7108 &snapshot,
7109 longest_line_width,
7110 longest_line_blame_width,
7111 &style,
7112 editor_width,
7113 cx,
7114 );
7115
7116 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7117 let mut scroll_width = scroll_range_bounds.size.width;
7118
7119 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7120 snapshot.sticky_header_excerpt(start_row)
7121 } else {
7122 None
7123 };
7124 let sticky_header_excerpt_id =
7125 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7126
7127 let blocks = window.with_element_namespace("blocks", |window| {
7128 self.render_blocks(
7129 start_row..end_row,
7130 &snapshot,
7131 &hitbox,
7132 &text_hitbox,
7133 editor_width,
7134 &mut scroll_width,
7135 &gutter_dimensions,
7136 em_width,
7137 gutter_dimensions.full_width(),
7138 line_height,
7139 &line_layouts,
7140 &local_selections,
7141 &selected_buffer_ids,
7142 is_row_soft_wrapped,
7143 sticky_header_excerpt_id,
7144 window,
7145 cx,
7146 )
7147 });
7148 let mut blocks = match blocks {
7149 Ok(blocks) => blocks,
7150 Err(resized_blocks) => {
7151 self.editor.update(cx, |editor, cx| {
7152 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7153 });
7154 return self.prepaint(None, bounds, &mut (), window, cx);
7155 }
7156 };
7157
7158 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7159 window.with_element_namespace("blocks", |window| {
7160 self.layout_sticky_buffer_header(
7161 sticky_header_excerpt,
7162 scroll_position.y,
7163 line_height,
7164 &snapshot,
7165 &hitbox,
7166 &selected_buffer_ids,
7167 window,
7168 cx,
7169 )
7170 })
7171 });
7172
7173 let start_buffer_row =
7174 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7175 let end_buffer_row =
7176 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7177
7178 let scroll_max = point(
7179 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7180 max_row.as_f32(),
7181 );
7182
7183 self.editor.update(cx, |editor, cx| {
7184 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7185
7186 let autoscrolled = if autoscroll_horizontally {
7187 editor.autoscroll_horizontally(
7188 start_row,
7189 editor_width - (letter_size.width / 2.0),
7190 scroll_width,
7191 em_width,
7192 &line_layouts,
7193 cx,
7194 )
7195 } else {
7196 false
7197 };
7198
7199 if clamped || autoscrolled {
7200 snapshot = editor.snapshot(window, cx);
7201 scroll_position = snapshot.scroll_position();
7202 }
7203 });
7204
7205 let scroll_pixel_position = point(
7206 scroll_position.x * em_width,
7207 scroll_position.y * line_height,
7208 );
7209
7210 let indent_guides = self.layout_indent_guides(
7211 content_origin,
7212 text_hitbox.origin,
7213 start_buffer_row..end_buffer_row,
7214 scroll_pixel_position,
7215 line_height,
7216 &snapshot,
7217 window,
7218 cx,
7219 );
7220
7221 let crease_trailers =
7222 window.with_element_namespace("crease_trailers", |window| {
7223 self.prepaint_crease_trailers(
7224 crease_trailers,
7225 &line_layouts,
7226 line_height,
7227 content_origin,
7228 scroll_pixel_position,
7229 em_width,
7230 window,
7231 cx,
7232 )
7233 });
7234
7235 let mut inline_blame = None;
7236 if let Some(newest_selection_head) = newest_selection_head {
7237 let display_row = newest_selection_head.row();
7238 if (start_row..end_row).contains(&display_row) {
7239 let line_ix = display_row.minus(start_row) as usize;
7240 let row_info = &row_infos[line_ix];
7241 let line_layout = &line_layouts[line_ix];
7242 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7243 inline_blame = self.layout_inline_blame(
7244 display_row,
7245 row_info,
7246 line_layout,
7247 crease_trailer_layout,
7248 em_width,
7249 content_origin,
7250 scroll_pixel_position,
7251 line_height,
7252 window,
7253 cx,
7254 );
7255 }
7256 }
7257
7258 let blamed_display_rows = self.layout_blame_entries(
7259 &row_infos,
7260 em_width,
7261 scroll_position,
7262 line_height,
7263 &gutter_hitbox,
7264 gutter_dimensions.git_blame_entries_width,
7265 window,
7266 cx,
7267 );
7268
7269 let scroll_max = point(
7270 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7271 max_scroll_top,
7272 );
7273
7274 self.editor.update(cx, |editor, cx| {
7275 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7276
7277 let autoscrolled = if autoscroll_horizontally {
7278 editor.autoscroll_horizontally(
7279 start_row,
7280 editor_width - (letter_size.width / 2.0),
7281 scroll_width,
7282 em_width,
7283 &line_layouts,
7284 cx,
7285 )
7286 } else {
7287 false
7288 };
7289
7290 if clamped || autoscrolled {
7291 snapshot = editor.snapshot(window, cx);
7292 scroll_position = snapshot.scroll_position();
7293 }
7294 });
7295
7296 let line_elements = self.prepaint_lines(
7297 start_row,
7298 &mut line_layouts,
7299 line_height,
7300 scroll_pixel_position,
7301 content_origin,
7302 window,
7303 cx,
7304 );
7305
7306 let mut block_start_rows = HashSet::default();
7307
7308 window.with_element_namespace("blocks", |window| {
7309 self.layout_blocks(
7310 &mut blocks,
7311 &mut block_start_rows,
7312 &hitbox,
7313 line_height,
7314 scroll_pixel_position,
7315 window,
7316 cx,
7317 );
7318 });
7319
7320 let cursors = self.collect_cursors(&snapshot, cx);
7321 let visible_row_range = start_row..end_row;
7322 let non_visible_cursors = cursors
7323 .iter()
7324 .any(|c| !visible_row_range.contains(&c.0.row()));
7325
7326 let visible_cursors = self.layout_visible_cursors(
7327 &snapshot,
7328 &selections,
7329 &block_start_rows,
7330 start_row..end_row,
7331 &line_layouts,
7332 &text_hitbox,
7333 content_origin,
7334 scroll_position,
7335 scroll_pixel_position,
7336 line_height,
7337 em_width,
7338 em_advance,
7339 autoscroll_containing_element,
7340 window,
7341 cx,
7342 );
7343
7344 let scrollbars_layout = self.layout_scrollbars(
7345 &snapshot,
7346 scrollbar_range_data,
7347 scroll_position,
7348 non_visible_cursors,
7349 window,
7350 cx,
7351 );
7352
7353 let gutter_settings = EditorSettings::get_global(cx).gutter;
7354
7355 let rows_with_hunk_bounds = display_hunks
7356 .iter()
7357 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7358 .fold(
7359 HashMap::default(),
7360 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7361 match hunk {
7362 DisplayDiffHunk::Folded { display_row } => {
7363 rows_with_hunk_bounds.insert(*display_row, bounds);
7364 }
7365 DisplayDiffHunk::Unfolded {
7366 display_row_range, ..
7367 } => {
7368 for display_row in display_row_range.iter_rows() {
7369 rows_with_hunk_bounds.insert(display_row, bounds);
7370 }
7371 }
7372 }
7373 rows_with_hunk_bounds
7374 },
7375 );
7376 let mut code_actions_indicator = None;
7377 if let Some(newest_selection_head) = newest_selection_head {
7378 let newest_selection_point =
7379 newest_selection_head.to_point(&snapshot.display_snapshot);
7380
7381 if (start_row..end_row).contains(&newest_selection_head.row()) {
7382 self.layout_cursor_popovers(
7383 line_height,
7384 &text_hitbox,
7385 content_origin,
7386 start_row,
7387 scroll_pixel_position,
7388 &line_layouts,
7389 newest_selection_head,
7390 newest_selection_point,
7391 &style,
7392 window,
7393 cx,
7394 );
7395
7396 let show_code_actions = snapshot
7397 .show_code_actions
7398 .unwrap_or(gutter_settings.code_actions);
7399 if show_code_actions {
7400 let newest_selection_point =
7401 newest_selection_head.to_point(&snapshot.display_snapshot);
7402 if !snapshot
7403 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7404 {
7405 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7406 MultiBufferRow(newest_selection_point.row),
7407 );
7408 if let Some((buffer, range)) = buffer {
7409 let buffer_id = buffer.remote_id();
7410 let row = range.start.row;
7411 let has_test_indicator = self
7412 .editor
7413 .read(cx)
7414 .tasks
7415 .contains_key(&(buffer_id, row));
7416
7417 if !has_test_indicator {
7418 code_actions_indicator = self
7419 .layout_code_actions_indicator(
7420 line_height,
7421 newest_selection_head,
7422 scroll_pixel_position,
7423 &gutter_dimensions,
7424 &gutter_hitbox,
7425 &rows_with_hunk_bounds,
7426 window,
7427 cx,
7428 );
7429 }
7430 }
7431 }
7432 }
7433 }
7434 }
7435
7436 self.layout_gutter_menu(
7437 line_height,
7438 &text_hitbox,
7439 content_origin,
7440 scroll_pixel_position,
7441 gutter_dimensions.width - gutter_dimensions.left_padding,
7442 window,
7443 cx,
7444 );
7445
7446 let test_indicators = if gutter_settings.runnables {
7447 self.layout_run_indicators(
7448 line_height,
7449 start_row..end_row,
7450 scroll_pixel_position,
7451 &gutter_dimensions,
7452 &gutter_hitbox,
7453 &rows_with_hunk_bounds,
7454 &snapshot,
7455 window,
7456 cx,
7457 )
7458 } else {
7459 Vec::new()
7460 };
7461
7462 self.layout_signature_help(
7463 &hitbox,
7464 content_origin,
7465 scroll_pixel_position,
7466 newest_selection_head,
7467 start_row,
7468 &line_layouts,
7469 line_height,
7470 em_width,
7471 window,
7472 cx,
7473 );
7474
7475 if !cx.has_active_drag() {
7476 self.layout_hover_popovers(
7477 &snapshot,
7478 &hitbox,
7479 &text_hitbox,
7480 start_row..end_row,
7481 content_origin,
7482 scroll_pixel_position,
7483 &line_layouts,
7484 line_height,
7485 em_width,
7486 window,
7487 cx,
7488 );
7489 }
7490
7491 let inline_completion_popover = self.layout_edit_prediction_popover(
7492 &text_hitbox.bounds,
7493 content_origin,
7494 &snapshot,
7495 start_row..end_row,
7496 scroll_position.y,
7497 scroll_position.y + height_in_lines,
7498 &line_layouts,
7499 line_height,
7500 scroll_pixel_position,
7501 newest_selection_head,
7502 editor_width,
7503 &style,
7504 window,
7505 cx,
7506 );
7507
7508 let mouse_context_menu = self.layout_mouse_context_menu(
7509 &snapshot,
7510 start_row..end_row,
7511 content_origin,
7512 window,
7513 cx,
7514 );
7515
7516 window.with_element_namespace("crease_toggles", |window| {
7517 self.prepaint_crease_toggles(
7518 &mut crease_toggles,
7519 line_height,
7520 &gutter_dimensions,
7521 gutter_settings,
7522 scroll_pixel_position,
7523 &gutter_hitbox,
7524 window,
7525 cx,
7526 )
7527 });
7528
7529 let invisible_symbol_font_size = font_size / 2.;
7530 let tab_invisible = window
7531 .text_system()
7532 .shape_line(
7533 "→".into(),
7534 invisible_symbol_font_size,
7535 &[TextRun {
7536 len: "→".len(),
7537 font: self.style.text.font(),
7538 color: cx.theme().colors().editor_invisible,
7539 background_color: None,
7540 underline: None,
7541 strikethrough: None,
7542 }],
7543 )
7544 .unwrap();
7545 let space_invisible = window
7546 .text_system()
7547 .shape_line(
7548 "•".into(),
7549 invisible_symbol_font_size,
7550 &[TextRun {
7551 len: "•".len(),
7552 font: self.style.text.font(),
7553 color: cx.theme().colors().editor_invisible,
7554 background_color: None,
7555 underline: None,
7556 strikethrough: None,
7557 }],
7558 )
7559 .unwrap();
7560
7561 let mode = snapshot.mode;
7562
7563 let position_map = Rc::new(PositionMap {
7564 size: bounds.size,
7565 visible_row_range,
7566 scroll_pixel_position,
7567 scroll_max,
7568 line_layouts,
7569 line_height,
7570 em_width,
7571 em_advance,
7572 snapshot,
7573 gutter_hitbox: gutter_hitbox.clone(),
7574 text_hitbox: text_hitbox.clone(),
7575 });
7576
7577 self.editor.update(cx, |editor, _| {
7578 editor.last_position_map = Some(position_map.clone())
7579 });
7580
7581 let hunk_controls = self.layout_diff_hunk_controls(
7582 start_row..end_row,
7583 &row_infos,
7584 &text_hitbox,
7585 &position_map,
7586 newest_selection_head,
7587 line_height,
7588 scroll_pixel_position,
7589 &display_hunks,
7590 self.editor.clone(),
7591 window,
7592 cx,
7593 );
7594
7595 EditorLayout {
7596 mode,
7597 position_map,
7598 visible_display_row_range: start_row..end_row,
7599 wrap_guides,
7600 indent_guides,
7601 hitbox,
7602 gutter_hitbox,
7603 display_hunks,
7604 content_origin,
7605 scrollbars_layout,
7606 active_rows,
7607 highlighted_rows,
7608 highlighted_ranges,
7609 highlighted_gutter_ranges,
7610 redacted_ranges,
7611 line_elements,
7612 line_numbers,
7613 blamed_display_rows,
7614 inline_blame,
7615 blocks,
7616 cursors,
7617 visible_cursors,
7618 selections,
7619 inline_completion_popover,
7620 diff_hunk_controls: hunk_controls,
7621 mouse_context_menu,
7622 test_indicators,
7623 code_actions_indicator,
7624 crease_toggles,
7625 crease_trailers,
7626 tab_invisible,
7627 space_invisible,
7628 sticky_buffer_header,
7629 }
7630 })
7631 })
7632 })
7633 }
7634
7635 fn paint(
7636 &mut self,
7637 _: Option<&GlobalElementId>,
7638 bounds: Bounds<gpui::Pixels>,
7639 _: &mut Self::RequestLayoutState,
7640 layout: &mut Self::PrepaintState,
7641 window: &mut Window,
7642 cx: &mut App,
7643 ) {
7644 let focus_handle = self.editor.focus_handle(cx);
7645 let key_context = self
7646 .editor
7647 .update(cx, |editor, cx| editor.key_context(window, cx));
7648
7649 window.set_key_context(key_context);
7650 window.handle_input(
7651 &focus_handle,
7652 ElementInputHandler::new(bounds, self.editor.clone()),
7653 cx,
7654 );
7655 self.register_actions(window, cx);
7656 self.register_key_listeners(window, cx, layout);
7657
7658 let text_style = TextStyleRefinement {
7659 font_size: Some(self.style.text.font_size),
7660 line_height: Some(self.style.text.line_height),
7661 ..Default::default()
7662 };
7663 let rem_size = self.rem_size(cx);
7664 window.with_rem_size(rem_size, |window| {
7665 window.with_text_style(Some(text_style), |window| {
7666 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7667 self.paint_mouse_listeners(layout, window, cx);
7668 self.paint_background(layout, window, cx);
7669 self.paint_indent_guides(layout, window, cx);
7670
7671 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7672 self.paint_blamed_display_rows(layout, window, cx);
7673 self.paint_line_numbers(layout, window, cx);
7674 }
7675
7676 self.paint_text(layout, window, cx);
7677
7678 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7679 self.paint_gutter_highlights(layout, window, cx);
7680 self.paint_gutter_indicators(layout, window, cx);
7681 }
7682
7683 if !layout.blocks.is_empty() {
7684 window.with_element_namespace("blocks", |window| {
7685 self.paint_blocks(layout, window, cx);
7686 });
7687 }
7688
7689 window.with_element_namespace("blocks", |window| {
7690 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7691 sticky_header.paint(window, cx)
7692 }
7693 });
7694
7695 self.paint_scrollbars(layout, window, cx);
7696 self.paint_inline_completion_popover(layout, window, cx);
7697 self.paint_mouse_context_menu(layout, window, cx);
7698 });
7699 })
7700 })
7701 }
7702}
7703
7704pub(super) fn gutter_bounds(
7705 editor_bounds: Bounds<Pixels>,
7706 gutter_dimensions: GutterDimensions,
7707) -> Bounds<Pixels> {
7708 Bounds {
7709 origin: editor_bounds.origin,
7710 size: size(gutter_dimensions.width, editor_bounds.size.height),
7711 }
7712}
7713
7714struct ScrollbarRangeData {
7715 scrollbar_bounds: Bounds<Pixels>,
7716 scroll_range: Bounds<Pixels>,
7717 letter_size: Size<Pixels>,
7718}
7719
7720impl ScrollbarRangeData {
7721 #[allow(clippy::too_many_arguments)]
7722 pub fn new(
7723 scrollbar_bounds: Bounds<Pixels>,
7724 letter_size: Size<Pixels>,
7725 snapshot: &EditorSnapshot,
7726 longest_line_width: Pixels,
7727 longest_line_blame_width: Pixels,
7728 style: &EditorStyle,
7729 editor_width: Pixels,
7730 cx: &mut App,
7731 ) -> ScrollbarRangeData {
7732 // TODO: Simplify this function down, it requires a lot of parameters
7733 let max_row = snapshot.max_point().row();
7734 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7735
7736 let settings = EditorSettings::get_global(cx);
7737 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7738 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7739 ScrollBeyondLastLine::Off => px(1.),
7740 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7741 };
7742
7743 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7744 letter_size.width + style.scrollbar_width
7745 } else {
7746 px(0.0)
7747 };
7748
7749 let overscroll = size(
7750 right_margin + longest_line_blame_width,
7751 letter_size.height * scroll_beyond_last_line,
7752 );
7753
7754 let scroll_range = Bounds {
7755 origin: scrollbar_bounds.origin,
7756 size: text_bounds_size + overscroll,
7757 };
7758
7759 ScrollbarRangeData {
7760 scrollbar_bounds,
7761 scroll_range,
7762 letter_size,
7763 }
7764 }
7765}
7766
7767impl IntoElement for EditorElement {
7768 type Element = Self;
7769
7770 fn into_element(self) -> Self::Element {
7771 self
7772 }
7773}
7774
7775pub struct EditorLayout {
7776 position_map: Rc<PositionMap>,
7777 hitbox: Hitbox,
7778 gutter_hitbox: Hitbox,
7779 content_origin: gpui::Point<Pixels>,
7780 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7781 mode: EditorMode,
7782 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7783 indent_guides: Option<Vec<IndentGuideLayout>>,
7784 visible_display_row_range: Range<DisplayRow>,
7785 active_rows: BTreeMap<DisplayRow, bool>,
7786 highlighted_rows: BTreeMap<DisplayRow, gpui::Background>,
7787 line_elements: SmallVec<[AnyElement; 1]>,
7788 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7789 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7790 blamed_display_rows: Option<Vec<AnyElement>>,
7791 inline_blame: Option<AnyElement>,
7792 blocks: Vec<BlockLayout>,
7793 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7794 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7795 redacted_ranges: Vec<Range<DisplayPoint>>,
7796 cursors: Vec<(DisplayPoint, Hsla)>,
7797 visible_cursors: Vec<CursorLayout>,
7798 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7799 code_actions_indicator: Option<AnyElement>,
7800 test_indicators: Vec<AnyElement>,
7801 crease_toggles: Vec<Option<AnyElement>>,
7802 diff_hunk_controls: Vec<AnyElement>,
7803 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7804 inline_completion_popover: Option<AnyElement>,
7805 mouse_context_menu: Option<AnyElement>,
7806 tab_invisible: ShapedLine,
7807 space_invisible: ShapedLine,
7808 sticky_buffer_header: Option<AnyElement>,
7809}
7810
7811impl EditorLayout {
7812 fn line_end_overshoot(&self) -> Pixels {
7813 0.15 * self.position_map.line_height
7814 }
7815}
7816
7817struct LineNumberLayout {
7818 shaped_line: ShapedLine,
7819 hitbox: Option<Hitbox>,
7820 display_row: DisplayRow,
7821}
7822
7823struct ColoredRange<T> {
7824 start: T,
7825 end: T,
7826 color: Hsla,
7827}
7828
7829#[derive(Clone)]
7830struct ScrollbarLayout {
7831 hitbox: Hitbox,
7832 visible_range: Range<f32>,
7833 visible: bool,
7834 text_unit_size: Pixels,
7835 thumb_size: Pixels,
7836 axis: Axis,
7837}
7838
7839impl ScrollbarLayout {
7840 const BORDER_WIDTH: Pixels = px(1.0);
7841 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7842 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7843 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7844
7845 fn thumb_bounds(&self) -> Bounds<Pixels> {
7846 match self.axis {
7847 Axis::Vertical => {
7848 let thumb_top = self.y_for_row(self.visible_range.start);
7849 let thumb_bottom = thumb_top + self.thumb_size;
7850 Bounds::from_corners(
7851 point(self.hitbox.left(), thumb_top),
7852 point(self.hitbox.right(), thumb_bottom),
7853 )
7854 }
7855 Axis::Horizontal => {
7856 let thumb_left =
7857 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7858 let thumb_right = thumb_left + self.thumb_size;
7859 Bounds::from_corners(
7860 point(thumb_left, self.hitbox.top()),
7861 point(thumb_right, self.hitbox.bottom()),
7862 )
7863 }
7864 }
7865 }
7866
7867 fn y_for_row(&self, row: f32) -> Pixels {
7868 self.hitbox.top() + row * self.text_unit_size
7869 }
7870
7871 fn marker_quads_for_ranges(
7872 &self,
7873 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7874 column: Option<usize>,
7875 ) -> Vec<PaintQuad> {
7876 struct MinMax {
7877 min: Pixels,
7878 max: Pixels,
7879 }
7880 let (x_range, height_limit) = if let Some(column) = column {
7881 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7882 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7883 let end = start + column_width;
7884 (
7885 Range { start, end },
7886 MinMax {
7887 min: Self::MIN_MARKER_HEIGHT,
7888 max: px(f32::MAX),
7889 },
7890 )
7891 } else {
7892 (
7893 Range {
7894 start: Self::BORDER_WIDTH,
7895 end: self.hitbox.size.width,
7896 },
7897 MinMax {
7898 min: Self::LINE_MARKER_HEIGHT,
7899 max: Self::LINE_MARKER_HEIGHT,
7900 },
7901 )
7902 };
7903
7904 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7905 let mut pixel_ranges = row_ranges
7906 .into_iter()
7907 .map(|range| {
7908 let start_y = row_to_y(range.start);
7909 let end_y = row_to_y(range.end)
7910 + self
7911 .text_unit_size
7912 .max(height_limit.min)
7913 .min(height_limit.max);
7914 ColoredRange {
7915 start: start_y,
7916 end: end_y,
7917 color: range.color,
7918 }
7919 })
7920 .peekable();
7921
7922 let mut quads = Vec::new();
7923 while let Some(mut pixel_range) = pixel_ranges.next() {
7924 while let Some(next_pixel_range) = pixel_ranges.peek() {
7925 if pixel_range.end >= next_pixel_range.start - px(1.0)
7926 && pixel_range.color == next_pixel_range.color
7927 {
7928 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7929 pixel_ranges.next();
7930 } else {
7931 break;
7932 }
7933 }
7934
7935 let bounds = Bounds::from_corners(
7936 point(x_range.start, pixel_range.start),
7937 point(x_range.end, pixel_range.end),
7938 );
7939 quads.push(quad(
7940 bounds,
7941 Corners::default(),
7942 pixel_range.color,
7943 Edges::default(),
7944 Hsla::transparent_black(),
7945 ));
7946 }
7947
7948 quads
7949 }
7950}
7951
7952struct CreaseTrailerLayout {
7953 element: AnyElement,
7954 bounds: Bounds<Pixels>,
7955}
7956
7957pub(crate) struct PositionMap {
7958 pub size: Size<Pixels>,
7959 pub line_height: Pixels,
7960 pub scroll_pixel_position: gpui::Point<Pixels>,
7961 pub scroll_max: gpui::Point<f32>,
7962 pub em_width: Pixels,
7963 pub em_advance: Pixels,
7964 pub visible_row_range: Range<DisplayRow>,
7965 pub line_layouts: Vec<LineWithInvisibles>,
7966 pub snapshot: EditorSnapshot,
7967 pub text_hitbox: Hitbox,
7968 pub gutter_hitbox: Hitbox,
7969}
7970
7971#[derive(Debug, Copy, Clone)]
7972pub struct PointForPosition {
7973 pub previous_valid: DisplayPoint,
7974 pub next_valid: DisplayPoint,
7975 pub exact_unclipped: DisplayPoint,
7976 pub column_overshoot_after_line_end: u32,
7977}
7978
7979impl PointForPosition {
7980 pub fn as_valid(&self) -> Option<DisplayPoint> {
7981 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7982 Some(self.previous_valid)
7983 } else {
7984 None
7985 }
7986 }
7987}
7988
7989impl PositionMap {
7990 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7991 let text_bounds = self.text_hitbox.bounds;
7992 let scroll_position = self.snapshot.scroll_position();
7993 let position = position - text_bounds.origin;
7994 let y = position.y.max(px(0.)).min(self.size.height);
7995 let x = position.x + (scroll_position.x * self.em_width);
7996 let row = ((y / self.line_height) + scroll_position.y) as u32;
7997
7998 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7999 .line_layouts
8000 .get(row as usize - scroll_position.y as usize)
8001 {
8002 if let Some(ix) = line.index_for_x(x) {
8003 (ix as u32, px(0.))
8004 } else {
8005 (line.len as u32, px(0.).max(x - line.width))
8006 }
8007 } else {
8008 (0, x)
8009 };
8010
8011 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8012 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8013 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8014
8015 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8016 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8017 PointForPosition {
8018 previous_valid,
8019 next_valid,
8020 exact_unclipped,
8021 column_overshoot_after_line_end,
8022 }
8023 }
8024}
8025
8026struct BlockLayout {
8027 id: BlockId,
8028 row: Option<DisplayRow>,
8029 element: AnyElement,
8030 available_space: Size<AvailableSpace>,
8031 style: BlockStyle,
8032}
8033
8034fn layout_line(
8035 row: DisplayRow,
8036 snapshot: &EditorSnapshot,
8037 style: &EditorStyle,
8038 text_width: Pixels,
8039 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8040 window: &mut Window,
8041 cx: &mut App,
8042) -> LineWithInvisibles {
8043 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8044 LineWithInvisibles::from_chunks(
8045 chunks,
8046 &style,
8047 MAX_LINE_LEN,
8048 1,
8049 snapshot.mode,
8050 text_width,
8051 is_row_soft_wrapped,
8052 window,
8053 cx,
8054 )
8055 .pop()
8056 .unwrap()
8057}
8058
8059#[derive(Debug)]
8060pub struct IndentGuideLayout {
8061 origin: gpui::Point<Pixels>,
8062 length: Pixels,
8063 single_indent_width: Pixels,
8064 depth: u32,
8065 active: bool,
8066 settings: IndentGuideSettings,
8067}
8068
8069pub struct CursorLayout {
8070 origin: gpui::Point<Pixels>,
8071 block_width: Pixels,
8072 line_height: Pixels,
8073 color: Hsla,
8074 shape: CursorShape,
8075 block_text: Option<ShapedLine>,
8076 cursor_name: Option<AnyElement>,
8077}
8078
8079#[derive(Debug)]
8080pub struct CursorName {
8081 string: SharedString,
8082 color: Hsla,
8083 is_top_row: bool,
8084}
8085
8086impl CursorLayout {
8087 pub fn new(
8088 origin: gpui::Point<Pixels>,
8089 block_width: Pixels,
8090 line_height: Pixels,
8091 color: Hsla,
8092 shape: CursorShape,
8093 block_text: Option<ShapedLine>,
8094 ) -> CursorLayout {
8095 CursorLayout {
8096 origin,
8097 block_width,
8098 line_height,
8099 color,
8100 shape,
8101 block_text,
8102 cursor_name: None,
8103 }
8104 }
8105
8106 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8107 Bounds {
8108 origin: self.origin + origin,
8109 size: size(self.block_width, self.line_height),
8110 }
8111 }
8112
8113 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8114 match self.shape {
8115 CursorShape::Bar => Bounds {
8116 origin: self.origin + origin,
8117 size: size(px(2.0), self.line_height),
8118 },
8119 CursorShape::Block | CursorShape::Hollow => Bounds {
8120 origin: self.origin + origin,
8121 size: size(self.block_width, self.line_height),
8122 },
8123 CursorShape::Underline => Bounds {
8124 origin: self.origin
8125 + origin
8126 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8127 size: size(self.block_width, px(2.0)),
8128 },
8129 }
8130 }
8131
8132 pub fn layout(
8133 &mut self,
8134 origin: gpui::Point<Pixels>,
8135 cursor_name: Option<CursorName>,
8136 window: &mut Window,
8137 cx: &mut App,
8138 ) {
8139 if let Some(cursor_name) = cursor_name {
8140 let bounds = self.bounds(origin);
8141 let text_size = self.line_height / 1.5;
8142
8143 let name_origin = if cursor_name.is_top_row {
8144 point(bounds.right() - px(1.), bounds.top())
8145 } else {
8146 match self.shape {
8147 CursorShape::Bar => point(
8148 bounds.right() - px(2.),
8149 bounds.top() - text_size / 2. - px(1.),
8150 ),
8151 _ => point(
8152 bounds.right() - px(1.),
8153 bounds.top() - text_size / 2. - px(1.),
8154 ),
8155 }
8156 };
8157 let mut name_element = div()
8158 .bg(self.color)
8159 .text_size(text_size)
8160 .px_0p5()
8161 .line_height(text_size + px(2.))
8162 .text_color(cursor_name.color)
8163 .child(cursor_name.string.clone())
8164 .into_any_element();
8165
8166 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8167
8168 self.cursor_name = Some(name_element);
8169 }
8170 }
8171
8172 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8173 let bounds = self.bounds(origin);
8174
8175 //Draw background or border quad
8176 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8177 outline(bounds, self.color)
8178 } else {
8179 fill(bounds, self.color)
8180 };
8181
8182 if let Some(name) = &mut self.cursor_name {
8183 name.paint(window, cx);
8184 }
8185
8186 window.paint_quad(cursor);
8187
8188 if let Some(block_text) = &self.block_text {
8189 block_text
8190 .paint(self.origin + origin, self.line_height, window, cx)
8191 .log_err();
8192 }
8193 }
8194
8195 pub fn shape(&self) -> CursorShape {
8196 self.shape
8197 }
8198}
8199
8200#[derive(Debug)]
8201pub struct HighlightedRange {
8202 pub start_y: Pixels,
8203 pub line_height: Pixels,
8204 pub lines: Vec<HighlightedRangeLine>,
8205 pub color: Hsla,
8206 pub corner_radius: Pixels,
8207}
8208
8209#[derive(Debug)]
8210pub struct HighlightedRangeLine {
8211 pub start_x: Pixels,
8212 pub end_x: Pixels,
8213}
8214
8215impl HighlightedRange {
8216 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8217 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8218 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8219 self.paint_lines(
8220 self.start_y + self.line_height,
8221 &self.lines[1..],
8222 bounds,
8223 window,
8224 );
8225 } else {
8226 self.paint_lines(self.start_y, &self.lines, bounds, window);
8227 }
8228 }
8229
8230 fn paint_lines(
8231 &self,
8232 start_y: Pixels,
8233 lines: &[HighlightedRangeLine],
8234 _bounds: Bounds<Pixels>,
8235 window: &mut Window,
8236 ) {
8237 if lines.is_empty() {
8238 return;
8239 }
8240
8241 let first_line = lines.first().unwrap();
8242 let last_line = lines.last().unwrap();
8243
8244 let first_top_left = point(first_line.start_x, start_y);
8245 let first_top_right = point(first_line.end_x, start_y);
8246
8247 let curve_height = point(Pixels::ZERO, self.corner_radius);
8248 let curve_width = |start_x: Pixels, end_x: Pixels| {
8249 let max = (end_x - start_x) / 2.;
8250 let width = if max < self.corner_radius {
8251 max
8252 } else {
8253 self.corner_radius
8254 };
8255
8256 point(width, Pixels::ZERO)
8257 };
8258
8259 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8260 let mut builder = gpui::PathBuilder::fill();
8261 builder.move_to(first_top_right - top_curve_width);
8262 builder.curve_to(first_top_right + curve_height, first_top_right);
8263
8264 let mut iter = lines.iter().enumerate().peekable();
8265 while let Some((ix, line)) = iter.next() {
8266 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8267
8268 if let Some((_, next_line)) = iter.peek() {
8269 let next_top_right = point(next_line.end_x, bottom_right.y);
8270
8271 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8272 Ordering::Equal => {
8273 builder.line_to(bottom_right);
8274 }
8275 Ordering::Less => {
8276 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8277 builder.line_to(bottom_right - curve_height);
8278 if self.corner_radius > Pixels::ZERO {
8279 builder.curve_to(bottom_right - curve_width, bottom_right);
8280 }
8281 builder.line_to(next_top_right + curve_width);
8282 if self.corner_radius > Pixels::ZERO {
8283 builder.curve_to(next_top_right + curve_height, next_top_right);
8284 }
8285 }
8286 Ordering::Greater => {
8287 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8288 builder.line_to(bottom_right - curve_height);
8289 if self.corner_radius > Pixels::ZERO {
8290 builder.curve_to(bottom_right + curve_width, bottom_right);
8291 }
8292 builder.line_to(next_top_right - curve_width);
8293 if self.corner_radius > Pixels::ZERO {
8294 builder.curve_to(next_top_right + curve_height, next_top_right);
8295 }
8296 }
8297 }
8298 } else {
8299 let curve_width = curve_width(line.start_x, line.end_x);
8300 builder.line_to(bottom_right - curve_height);
8301 if self.corner_radius > Pixels::ZERO {
8302 builder.curve_to(bottom_right - curve_width, bottom_right);
8303 }
8304
8305 let bottom_left = point(line.start_x, bottom_right.y);
8306 builder.line_to(bottom_left + curve_width);
8307 if self.corner_radius > Pixels::ZERO {
8308 builder.curve_to(bottom_left - curve_height, bottom_left);
8309 }
8310 }
8311 }
8312
8313 if first_line.start_x > last_line.start_x {
8314 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8315 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8316 builder.line_to(second_top_left + curve_height);
8317 if self.corner_radius > Pixels::ZERO {
8318 builder.curve_to(second_top_left + curve_width, second_top_left);
8319 }
8320 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8321 builder.line_to(first_bottom_left - curve_width);
8322 if self.corner_radius > Pixels::ZERO {
8323 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8324 }
8325 }
8326
8327 builder.line_to(first_top_left + curve_height);
8328 if self.corner_radius > Pixels::ZERO {
8329 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8330 }
8331 builder.line_to(first_top_right - top_curve_width);
8332
8333 if let Ok(path) = builder.build() {
8334 window.paint_path(path, self.color);
8335 }
8336 }
8337}
8338
8339enum CursorPopoverType {
8340 CodeContextMenu,
8341 EditPrediction,
8342}
8343
8344pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8345 (delta.pow(1.5) / 100.0).into()
8346}
8347
8348fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8349 (delta.pow(1.2) / 300.0).into()
8350}
8351
8352pub fn register_action<T: Action>(
8353 editor: &Entity<Editor>,
8354 window: &mut Window,
8355 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8356) {
8357 let editor = editor.clone();
8358 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8359 let action = action.downcast_ref().unwrap();
8360 if phase == DispatchPhase::Bubble {
8361 editor.update(cx, |editor, cx| {
8362 listener(editor, action, window, cx);
8363 })
8364 }
8365 })
8366}
8367
8368fn compute_auto_height_layout(
8369 editor: &mut Editor,
8370 max_lines: usize,
8371 max_line_number_width: Pixels,
8372 known_dimensions: Size<Option<Pixels>>,
8373 available_width: AvailableSpace,
8374 window: &mut Window,
8375 cx: &mut Context<Editor>,
8376) -> Option<Size<Pixels>> {
8377 let width = known_dimensions.width.or({
8378 if let AvailableSpace::Definite(available_width) = available_width {
8379 Some(available_width)
8380 } else {
8381 None
8382 }
8383 })?;
8384 if let Some(height) = known_dimensions.height {
8385 return Some(size(width, height));
8386 }
8387
8388 let style = editor.style.as_ref().unwrap();
8389 let font_id = window.text_system().resolve_font(&style.text.font());
8390 let font_size = style.text.font_size.to_pixels(window.rem_size());
8391 let line_height = style.text.line_height_in_pixels(window.rem_size());
8392 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8393
8394 let mut snapshot = editor.snapshot(window, cx);
8395 let gutter_dimensions = snapshot
8396 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8397 .unwrap_or_default();
8398
8399 editor.gutter_dimensions = gutter_dimensions;
8400 let text_width = width - gutter_dimensions.width;
8401 let overscroll = size(em_width, px(0.));
8402
8403 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8404 if editor.set_wrap_width(Some(editor_width), cx) {
8405 snapshot = editor.snapshot(window, cx);
8406 }
8407
8408 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8409 let height = scroll_height
8410 .max(line_height)
8411 .min(line_height * max_lines as f32);
8412
8413 Some(size(width, height))
8414}
8415
8416#[cfg(test)]
8417mod tests {
8418 use super::*;
8419 use crate::{
8420 display_map::{BlockPlacement, BlockProperties},
8421 editor_tests::{init_test, update_test_language_settings},
8422 Editor, MultiBuffer,
8423 };
8424 use gpui::{TestAppContext, VisualTestContext};
8425 use language::language_settings;
8426 use log::info;
8427 use similar::DiffableStr;
8428 use std::num::NonZeroU32;
8429 use util::test::sample_text;
8430
8431 #[gpui::test]
8432 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8433 init_test(cx, |_| {});
8434 let window = cx.add_window(|window, cx| {
8435 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8436 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8437 });
8438
8439 let editor = window.root(cx).unwrap();
8440 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8441 let line_height = window
8442 .update(cx, |_, window, _| {
8443 style.text.line_height_in_pixels(window.rem_size())
8444 })
8445 .unwrap();
8446 let element = EditorElement::new(&editor, style);
8447 let snapshot = window
8448 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8449 .unwrap();
8450
8451 let layouts = cx
8452 .update_window(*window, |_, window, cx| {
8453 element.layout_line_numbers(
8454 None,
8455 GutterDimensions {
8456 left_padding: Pixels::ZERO,
8457 right_padding: Pixels::ZERO,
8458 width: px(30.0),
8459 margin: Pixels::ZERO,
8460 git_blame_entries_width: None,
8461 },
8462 line_height,
8463 gpui::Point::default(),
8464 DisplayRow(0)..DisplayRow(6),
8465 &(0..6)
8466 .map(|row| RowInfo {
8467 buffer_row: Some(row),
8468 ..Default::default()
8469 })
8470 .collect::<Vec<_>>(),
8471 Some(DisplayPoint::new(DisplayRow(0), 0)),
8472 &snapshot,
8473 window,
8474 cx,
8475 )
8476 })
8477 .unwrap();
8478 assert_eq!(layouts.len(), 6);
8479
8480 let relative_rows = window
8481 .update(cx, |editor, window, cx| {
8482 let snapshot = editor.snapshot(window, cx);
8483 element.calculate_relative_line_numbers(
8484 &snapshot,
8485 &(DisplayRow(0)..DisplayRow(6)),
8486 Some(DisplayRow(3)),
8487 )
8488 })
8489 .unwrap();
8490 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8491 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8492 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8493 // current line has no relative number
8494 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8495 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8496
8497 // works if cursor is before screen
8498 let relative_rows = window
8499 .update(cx, |editor, window, cx| {
8500 let snapshot = editor.snapshot(window, cx);
8501 element.calculate_relative_line_numbers(
8502 &snapshot,
8503 &(DisplayRow(3)..DisplayRow(6)),
8504 Some(DisplayRow(1)),
8505 )
8506 })
8507 .unwrap();
8508 assert_eq!(relative_rows.len(), 3);
8509 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8510 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8511 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8512
8513 // works if cursor is after screen
8514 let relative_rows = window
8515 .update(cx, |editor, window, cx| {
8516 let snapshot = editor.snapshot(window, cx);
8517 element.calculate_relative_line_numbers(
8518 &snapshot,
8519 &(DisplayRow(0)..DisplayRow(3)),
8520 Some(DisplayRow(6)),
8521 )
8522 })
8523 .unwrap();
8524 assert_eq!(relative_rows.len(), 3);
8525 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8526 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8527 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8528 }
8529
8530 #[gpui::test]
8531 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8532 init_test(cx, |_| {});
8533
8534 let window = cx.add_window(|window, cx| {
8535 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8536 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8537 });
8538 let cx = &mut VisualTestContext::from_window(*window, cx);
8539 let editor = window.root(cx).unwrap();
8540 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8541
8542 window
8543 .update(cx, |editor, window, cx| {
8544 editor.cursor_shape = CursorShape::Block;
8545 editor.change_selections(None, window, cx, |s| {
8546 s.select_ranges([
8547 Point::new(0, 0)..Point::new(1, 0),
8548 Point::new(3, 2)..Point::new(3, 3),
8549 Point::new(5, 6)..Point::new(6, 0),
8550 ]);
8551 });
8552 })
8553 .unwrap();
8554
8555 let (_, state) = cx.draw(
8556 point(px(500.), px(500.)),
8557 size(px(500.), px(500.)),
8558 |_, _| EditorElement::new(&editor, style),
8559 );
8560
8561 assert_eq!(state.selections.len(), 1);
8562 let local_selections = &state.selections[0].1;
8563 assert_eq!(local_selections.len(), 3);
8564 // moves cursor back one line
8565 assert_eq!(
8566 local_selections[0].head,
8567 DisplayPoint::new(DisplayRow(0), 6)
8568 );
8569 assert_eq!(
8570 local_selections[0].range,
8571 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8572 );
8573
8574 // moves cursor back one column
8575 assert_eq!(
8576 local_selections[1].range,
8577 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8578 );
8579 assert_eq!(
8580 local_selections[1].head,
8581 DisplayPoint::new(DisplayRow(3), 2)
8582 );
8583
8584 // leaves cursor on the max point
8585 assert_eq!(
8586 local_selections[2].range,
8587 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8588 );
8589 assert_eq!(
8590 local_selections[2].head,
8591 DisplayPoint::new(DisplayRow(6), 0)
8592 );
8593
8594 // active lines does not include 1 (even though the range of the selection does)
8595 assert_eq!(
8596 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8597 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8598 );
8599
8600 // multi-buffer support
8601 // in DisplayPoint coordinates, this is what we're dealing with:
8602 // 0: [[file
8603 // 1: header
8604 // 2: section]]
8605 // 3: aaaaaa
8606 // 4: bbbbbb
8607 // 5: cccccc
8608 // 6:
8609 // 7: [[footer]]
8610 // 8: [[header]]
8611 // 9: ffffff
8612 // 10: gggggg
8613 // 11: hhhhhh
8614 // 12:
8615 // 13: [[footer]]
8616 // 14: [[file
8617 // 15: header
8618 // 16: section]]
8619 // 17: bbbbbb
8620 // 18: cccccc
8621 // 19: dddddd
8622 // 20: [[footer]]
8623 let window = cx.add_window(|window, cx| {
8624 let buffer = MultiBuffer::build_multi(
8625 [
8626 (
8627 &(sample_text(8, 6, 'a') + "\n"),
8628 vec![
8629 Point::new(0, 0)..Point::new(3, 0),
8630 Point::new(4, 0)..Point::new(7, 0),
8631 ],
8632 ),
8633 (
8634 &(sample_text(8, 6, 'a') + "\n"),
8635 vec![Point::new(1, 0)..Point::new(3, 0)],
8636 ),
8637 ],
8638 cx,
8639 );
8640 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8641 });
8642 let editor = window.root(cx).unwrap();
8643 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8644 let _state = window.update(cx, |editor, window, cx| {
8645 editor.cursor_shape = CursorShape::Block;
8646 editor.change_selections(None, window, cx, |s| {
8647 s.select_display_ranges([
8648 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8649 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8650 ]);
8651 });
8652 });
8653
8654 let (_, state) = cx.draw(
8655 point(px(500.), px(500.)),
8656 size(px(500.), px(500.)),
8657 |_, _| EditorElement::new(&editor, style),
8658 );
8659 assert_eq!(state.selections.len(), 1);
8660 let local_selections = &state.selections[0].1;
8661 assert_eq!(local_selections.len(), 2);
8662
8663 // moves cursor on excerpt boundary back a line
8664 // and doesn't allow selection to bleed through
8665 assert_eq!(
8666 local_selections[0].range,
8667 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8668 );
8669 assert_eq!(
8670 local_selections[0].head,
8671 DisplayPoint::new(DisplayRow(6), 0)
8672 );
8673 // moves cursor on buffer boundary back two lines
8674 // and doesn't allow selection to bleed through
8675 assert_eq!(
8676 local_selections[1].range,
8677 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8678 );
8679 assert_eq!(
8680 local_selections[1].head,
8681 DisplayPoint::new(DisplayRow(12), 0)
8682 );
8683 }
8684
8685 #[gpui::test]
8686 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8687 init_test(cx, |_| {});
8688
8689 let window = cx.add_window(|window, cx| {
8690 let buffer = MultiBuffer::build_simple("", cx);
8691 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8692 });
8693 let cx = &mut VisualTestContext::from_window(*window, cx);
8694 let editor = window.root(cx).unwrap();
8695 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8696 window
8697 .update(cx, |editor, window, cx| {
8698 editor.set_placeholder_text("hello", cx);
8699 editor.insert_blocks(
8700 [BlockProperties {
8701 style: BlockStyle::Fixed,
8702 placement: BlockPlacement::Above(Anchor::min()),
8703 height: 3,
8704 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8705 priority: 0,
8706 }],
8707 None,
8708 cx,
8709 );
8710
8711 // Blur the editor so that it displays placeholder text.
8712 window.blur();
8713 })
8714 .unwrap();
8715
8716 let (_, state) = cx.draw(
8717 point(px(500.), px(500.)),
8718 size(px(500.), px(500.)),
8719 |_, _| EditorElement::new(&editor, style),
8720 );
8721 assert_eq!(state.position_map.line_layouts.len(), 4);
8722 assert_eq!(state.line_numbers.len(), 1);
8723 assert_eq!(
8724 state
8725 .line_numbers
8726 .get(&MultiBufferRow(0))
8727 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8728 Some("1")
8729 );
8730 }
8731
8732 #[gpui::test]
8733 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8734 const TAB_SIZE: u32 = 4;
8735
8736 let input_text = "\t \t|\t| a b";
8737 let expected_invisibles = vec![
8738 Invisible::Tab {
8739 line_start_offset: 0,
8740 line_end_offset: TAB_SIZE as usize,
8741 },
8742 Invisible::Whitespace {
8743 line_offset: TAB_SIZE as usize,
8744 },
8745 Invisible::Tab {
8746 line_start_offset: TAB_SIZE as usize + 1,
8747 line_end_offset: TAB_SIZE as usize * 2,
8748 },
8749 Invisible::Tab {
8750 line_start_offset: TAB_SIZE as usize * 2 + 1,
8751 line_end_offset: TAB_SIZE as usize * 3,
8752 },
8753 Invisible::Whitespace {
8754 line_offset: TAB_SIZE as usize * 3 + 1,
8755 },
8756 Invisible::Whitespace {
8757 line_offset: TAB_SIZE as usize * 3 + 3,
8758 },
8759 ];
8760 assert_eq!(
8761 expected_invisibles.len(),
8762 input_text
8763 .chars()
8764 .filter(|initial_char| initial_char.is_whitespace())
8765 .count(),
8766 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8767 );
8768
8769 for show_line_numbers in [true, false] {
8770 init_test(cx, |s| {
8771 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8772 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8773 });
8774
8775 let actual_invisibles = collect_invisibles_from_new_editor(
8776 cx,
8777 EditorMode::Full,
8778 input_text,
8779 px(500.0),
8780 show_line_numbers,
8781 );
8782
8783 assert_eq!(expected_invisibles, actual_invisibles);
8784 }
8785 }
8786
8787 #[gpui::test]
8788 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8789 init_test(cx, |s| {
8790 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8791 s.defaults.tab_size = NonZeroU32::new(4);
8792 });
8793
8794 for editor_mode_without_invisibles in [
8795 EditorMode::SingleLine { auto_width: false },
8796 EditorMode::AutoHeight { max_lines: 100 },
8797 ] {
8798 for show_line_numbers in [true, false] {
8799 let invisibles = collect_invisibles_from_new_editor(
8800 cx,
8801 editor_mode_without_invisibles,
8802 "\t\t\t| | a b",
8803 px(500.0),
8804 show_line_numbers,
8805 );
8806 assert!(invisibles.is_empty(),
8807 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8808 }
8809 }
8810 }
8811
8812 #[gpui::test]
8813 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8814 let tab_size = 4;
8815 let input_text = "a\tbcd ".repeat(9);
8816 let repeated_invisibles = [
8817 Invisible::Tab {
8818 line_start_offset: 1,
8819 line_end_offset: tab_size as usize,
8820 },
8821 Invisible::Whitespace {
8822 line_offset: tab_size as usize + 3,
8823 },
8824 Invisible::Whitespace {
8825 line_offset: tab_size as usize + 4,
8826 },
8827 Invisible::Whitespace {
8828 line_offset: tab_size as usize + 5,
8829 },
8830 Invisible::Whitespace {
8831 line_offset: tab_size as usize + 6,
8832 },
8833 Invisible::Whitespace {
8834 line_offset: tab_size as usize + 7,
8835 },
8836 ];
8837 let expected_invisibles = std::iter::once(repeated_invisibles)
8838 .cycle()
8839 .take(9)
8840 .flatten()
8841 .collect::<Vec<_>>();
8842 assert_eq!(
8843 expected_invisibles.len(),
8844 input_text
8845 .chars()
8846 .filter(|initial_char| initial_char.is_whitespace())
8847 .count(),
8848 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8849 );
8850 info!("Expected invisibles: {expected_invisibles:?}");
8851
8852 init_test(cx, |_| {});
8853
8854 // Put the same string with repeating whitespace pattern into editors of various size,
8855 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8856 let resize_step = 10.0;
8857 let mut editor_width = 200.0;
8858 while editor_width <= 1000.0 {
8859 for show_line_numbers in [true, false] {
8860 update_test_language_settings(cx, |s| {
8861 s.defaults.tab_size = NonZeroU32::new(tab_size);
8862 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8863 s.defaults.preferred_line_length = Some(editor_width as u32);
8864 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8865 });
8866
8867 let actual_invisibles = collect_invisibles_from_new_editor(
8868 cx,
8869 EditorMode::Full,
8870 &input_text,
8871 px(editor_width),
8872 show_line_numbers,
8873 );
8874
8875 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8876 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8877 let mut i = 0;
8878 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8879 i = actual_index;
8880 match expected_invisibles.get(i) {
8881 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8882 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8883 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8884 _ => {
8885 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8886 }
8887 },
8888 None => {
8889 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8890 }
8891 }
8892 }
8893 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8894 assert!(
8895 missing_expected_invisibles.is_empty(),
8896 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8897 );
8898
8899 editor_width += resize_step;
8900 }
8901 }
8902 }
8903
8904 fn collect_invisibles_from_new_editor(
8905 cx: &mut TestAppContext,
8906 editor_mode: EditorMode,
8907 input_text: &str,
8908 editor_width: Pixels,
8909 show_line_numbers: bool,
8910 ) -> Vec<Invisible> {
8911 info!(
8912 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8913 editor_width.0
8914 );
8915 let window = cx.add_window(|window, cx| {
8916 let buffer = MultiBuffer::build_simple(input_text, cx);
8917 Editor::new(editor_mode, buffer, None, true, window, cx)
8918 });
8919 let cx = &mut VisualTestContext::from_window(*window, cx);
8920 let editor = window.root(cx).unwrap();
8921
8922 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8923 window
8924 .update(cx, |editor, _, cx| {
8925 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8926 editor.set_wrap_width(Some(editor_width), cx);
8927 editor.set_show_line_numbers(show_line_numbers, cx);
8928 })
8929 .unwrap();
8930 let (_, state) = cx.draw(
8931 point(px(500.), px(500.)),
8932 size(px(500.), px(500.)),
8933 |_, _| EditorElement::new(&editor, style),
8934 );
8935 state
8936 .position_map
8937 .line_layouts
8938 .iter()
8939 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8940 .cloned()
8941 .collect()
8942 }
8943}
8944
8945fn diff_hunk_controls(
8946 row: u32,
8947 hunk_range: Range<Anchor>,
8948 line_height: Pixels,
8949 editor: &Entity<Editor>,
8950 cx: &mut App,
8951) -> AnyElement {
8952 h_flex()
8953 .h(line_height)
8954 .mr_1()
8955 .gap_1()
8956 .px_1()
8957 .pb_1()
8958 .border_b_1()
8959 .border_color(cx.theme().colors().border_variant)
8960 .rounded_b_lg()
8961 .bg(cx.theme().colors().editor_background)
8962 .gap_1()
8963 .child(
8964 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8965 .shape(IconButtonShape::Square)
8966 .icon_size(IconSize::Small)
8967 // .disabled(!has_multiple_hunks)
8968 .tooltip({
8969 let focus_handle = editor.focus_handle(cx);
8970 move |window, cx| {
8971 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8972 }
8973 })
8974 .on_click({
8975 let editor = editor.clone();
8976 move |_event, window, cx| {
8977 editor.update(cx, |editor, cx| {
8978 let snapshot = editor.snapshot(window, cx);
8979 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8980 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8981 editor.expand_selected_diff_hunks(cx);
8982 });
8983 }
8984 }),
8985 )
8986 .child(
8987 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8988 .shape(IconButtonShape::Square)
8989 .icon_size(IconSize::Small)
8990 // .disabled(!has_multiple_hunks)
8991 .tooltip({
8992 let focus_handle = editor.focus_handle(cx);
8993 move |window, cx| {
8994 Tooltip::for_action_in(
8995 "Previous Hunk",
8996 &GoToPrevHunk,
8997 &focus_handle,
8998 window,
8999 cx,
9000 )
9001 }
9002 })
9003 .on_click({
9004 let editor = editor.clone();
9005 move |_event, window, cx| {
9006 editor.update(cx, |editor, cx| {
9007 let snapshot = editor.snapshot(window, cx);
9008 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9009 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
9010 editor.expand_selected_diff_hunks(cx);
9011 });
9012 }
9013 }),
9014 )
9015 .child(
9016 IconButton::new("discard", IconName::Undo)
9017 .shape(IconButtonShape::Square)
9018 .icon_size(IconSize::Small)
9019 .tooltip({
9020 let focus_handle = editor.focus_handle(cx);
9021 move |window, cx| {
9022 Tooltip::for_action_in(
9023 "Discard Hunk",
9024 &RevertSelectedHunks,
9025 &focus_handle,
9026 window,
9027 cx,
9028 )
9029 }
9030 })
9031 .on_click({
9032 let editor = editor.clone();
9033 move |_event, window, cx| {
9034 editor.update(cx, |editor, cx| {
9035 let snapshot = editor.snapshot(window, cx);
9036 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9037 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
9038 });
9039 }
9040 }),
9041 )
9042 .into_any_element()
9043}