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 .shadow_sm()
3815 .child(
3816 h_flex()
3817 .h(ACCEPT_INDICATOR_HEIGHT)
3818 .mb(px(-1.))
3819 .px_1p5()
3820 .gap_1()
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 .border_color(cx.theme().colors().border)
3833 .rounded_lg()
3834 .rounded_tr(Pixels::ZERO)
3835 .child(styled_text),
3836 )
3837 .into_any();
3838
3839 let line_count = highlighted_edits.text.lines().count();
3840
3841 let longest_row =
3842 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3843 let longest_line_width = if visible_row_range.contains(&longest_row) {
3844 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3845 } else {
3846 layout_line(
3847 longest_row,
3848 editor_snapshot,
3849 style,
3850 editor_width,
3851 |_| false,
3852 window,
3853 cx,
3854 )
3855 .width
3856 };
3857
3858 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3859 .extend(Edges {
3860 right: -Self::SCROLLBAR_WIDTH,
3861 ..Default::default()
3862 });
3863
3864 let x_after_longest =
3865 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3866
3867 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3868
3869 // Fully visible if it can be displayed within the window (allow overlapping other
3870 // panes). However, this is only allowed if the popover starts within text_bounds.
3871 let is_fully_visible = x_after_longest < text_bounds.right()
3872 && x_after_longest + element_bounds.width < viewport_bounds.right();
3873
3874 let mut origin = if is_fully_visible {
3875 point(
3876 x_after_longest,
3877 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3878 - scroll_pixel_position.y,
3879 )
3880 } else {
3881 // Avoid overlapping both the edited rows and the user's cursor.
3882 let target_above = DisplayRow(
3883 edit_start
3884 .row()
3885 .0
3886 .min(
3887 newest_selection_head
3888 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3889 )
3890 .saturating_sub(line_count as u32),
3891 );
3892 let mut row_target;
3893 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3894 row_target = target_above;
3895 } else {
3896 row_target = DisplayRow(
3897 edit_end.row().0.max(
3898 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3899 ) + 1,
3900 );
3901 if !visible_row_range.contains(&row_target) {
3902 // Not visible, so fallback on displaying immediately below the cursor.
3903 if let Some(cursor) = newest_selection_head {
3904 row_target = DisplayRow(cursor.row().0 + 1);
3905 } else {
3906 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3907 row_target = DisplayRow(0);
3908 }
3909 }
3910 };
3911
3912 text_bounds.origin
3913 + point(
3914 -scroll_pixel_position.x,
3915 row_target.as_f32() * line_height - scroll_pixel_position.y,
3916 )
3917 };
3918
3919 origin.y -= ACCEPT_INDICATOR_HEIGHT;
3920
3921 window.defer_draw(element, origin, 1);
3922
3923 // Do not return an element, since it will already be drawn due to defer_draw.
3924 None
3925 }
3926 }
3927 }
3928
3929 fn layout_mouse_context_menu(
3930 &self,
3931 editor_snapshot: &EditorSnapshot,
3932 visible_range: Range<DisplayRow>,
3933 content_origin: gpui::Point<Pixels>,
3934 window: &mut Window,
3935 cx: &mut App,
3936 ) -> Option<AnyElement> {
3937 let position = self.editor.update(cx, |editor, _cx| {
3938 let visible_start_point = editor.display_to_pixel_point(
3939 DisplayPoint::new(visible_range.start, 0),
3940 editor_snapshot,
3941 window,
3942 )?;
3943 let visible_end_point = editor.display_to_pixel_point(
3944 DisplayPoint::new(visible_range.end, 0),
3945 editor_snapshot,
3946 window,
3947 )?;
3948
3949 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3950 let (source_display_point, position) = match mouse_context_menu.position {
3951 MenuPosition::PinnedToScreen(point) => (None, point),
3952 MenuPosition::PinnedToEditor { source, offset } => {
3953 let source_display_point = source.to_display_point(editor_snapshot);
3954 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3955 let position = content_origin + source_point + offset;
3956 (Some(source_display_point), position)
3957 }
3958 };
3959
3960 let source_included = source_display_point.map_or(true, |source_display_point| {
3961 visible_range
3962 .to_inclusive()
3963 .contains(&source_display_point.row())
3964 });
3965 let position_included =
3966 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3967 if !source_included && !position_included {
3968 None
3969 } else {
3970 Some(position)
3971 }
3972 })?;
3973
3974 let mut element = self.editor.update(cx, |editor, _| {
3975 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3976 let context_menu = mouse_context_menu.context_menu.clone();
3977
3978 Some(
3979 deferred(
3980 anchored()
3981 .position(position)
3982 .child(context_menu)
3983 .anchor(Corner::TopLeft)
3984 .snap_to_window_with_margin(px(8.)),
3985 )
3986 .with_priority(1)
3987 .into_any(),
3988 )
3989 })?;
3990
3991 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3992 Some(element)
3993 }
3994
3995 #[allow(clippy::too_many_arguments)]
3996 fn layout_hover_popovers(
3997 &self,
3998 snapshot: &EditorSnapshot,
3999 hitbox: &Hitbox,
4000 text_hitbox: &Hitbox,
4001 visible_display_row_range: Range<DisplayRow>,
4002 content_origin: gpui::Point<Pixels>,
4003 scroll_pixel_position: gpui::Point<Pixels>,
4004 line_layouts: &[LineWithInvisibles],
4005 line_height: Pixels,
4006 em_width: Pixels,
4007 window: &mut Window,
4008 cx: &mut App,
4009 ) {
4010 struct MeasuredHoverPopover {
4011 element: AnyElement,
4012 size: Size<Pixels>,
4013 horizontal_offset: Pixels,
4014 }
4015
4016 let max_size = size(
4017 (120. * em_width) // Default size
4018 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4019 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4020 (16. * line_height) // Default size
4021 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4022 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4023 );
4024
4025 let hover_popovers = self.editor.update(cx, |editor, cx| {
4026 editor
4027 .hover_state
4028 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4029 });
4030 let Some((position, hover_popovers)) = hover_popovers else {
4031 return;
4032 };
4033
4034 // This is safe because we check on layout whether the required row is available
4035 let hovered_row_layout =
4036 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4037
4038 // Compute Hovered Point
4039 let x =
4040 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4041 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4042 let hovered_point = content_origin + point(x, y);
4043
4044 let mut overall_height = Pixels::ZERO;
4045 let mut measured_hover_popovers = Vec::new();
4046 for mut hover_popover in hover_popovers {
4047 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4048 let horizontal_offset =
4049 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4050
4051 overall_height += HOVER_POPOVER_GAP + size.height;
4052
4053 measured_hover_popovers.push(MeasuredHoverPopover {
4054 element: hover_popover,
4055 size,
4056 horizontal_offset,
4057 });
4058 }
4059 overall_height += HOVER_POPOVER_GAP;
4060
4061 fn draw_occluder(
4062 width: Pixels,
4063 origin: gpui::Point<Pixels>,
4064 window: &mut Window,
4065 cx: &mut App,
4066 ) {
4067 let mut occlusion = div()
4068 .size_full()
4069 .occlude()
4070 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4071 .into_any_element();
4072 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4073 window.defer_draw(occlusion, origin, 2);
4074 }
4075
4076 if hovered_point.y > overall_height {
4077 // There is enough space above. Render popovers above the hovered point
4078 let mut current_y = hovered_point.y;
4079 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4080 let size = popover.size;
4081 let popover_origin = point(
4082 hovered_point.x + popover.horizontal_offset,
4083 current_y - size.height,
4084 );
4085
4086 window.defer_draw(popover.element, popover_origin, 2);
4087 if position != itertools::Position::Last {
4088 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4089 draw_occluder(size.width, origin, window, cx);
4090 }
4091
4092 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4093 }
4094 } else {
4095 // There is not enough space above. Render popovers below the hovered point
4096 let mut current_y = hovered_point.y + line_height;
4097 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4098 let size = popover.size;
4099 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4100
4101 window.defer_draw(popover.element, popover_origin, 2);
4102 if position != itertools::Position::Last {
4103 let origin = point(popover_origin.x, popover_origin.y + size.height);
4104 draw_occluder(size.width, origin, window, cx);
4105 }
4106
4107 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4108 }
4109 }
4110 }
4111
4112 #[allow(clippy::too_many_arguments)]
4113 fn layout_diff_hunk_controls(
4114 &self,
4115 row_range: Range<DisplayRow>,
4116 row_infos: &[RowInfo],
4117 text_hitbox: &Hitbox,
4118 position_map: &PositionMap,
4119 newest_cursor_position: Option<DisplayPoint>,
4120 line_height: Pixels,
4121 scroll_pixel_position: gpui::Point<Pixels>,
4122 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4123 editor: Entity<Editor>,
4124 window: &mut Window,
4125 cx: &mut App,
4126 ) -> Vec<AnyElement> {
4127 let point_for_position = position_map.point_for_position(window.mouse_position());
4128
4129 let mut controls = vec![];
4130
4131 let active_positions = [
4132 Some(point_for_position.previous_valid),
4133 newest_cursor_position,
4134 ];
4135
4136 for (hunk, _) in display_hunks {
4137 if let DisplayDiffHunk::Unfolded {
4138 display_row_range,
4139 multi_buffer_range,
4140 status,
4141 ..
4142 } = &hunk
4143 {
4144 if display_row_range.start < row_range.start
4145 || display_row_range.start >= row_range.end
4146 {
4147 continue;
4148 }
4149 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4150 if row_infos[row_ix].diff_status.is_none() {
4151 continue;
4152 }
4153 if matches!(
4154 row_infos[row_ix].diff_status,
4155 Some(DiffHunkStatus::Added(_))
4156 ) && !matches!(*status, DiffHunkStatus::Added(_))
4157 {
4158 continue;
4159 }
4160 if active_positions
4161 .iter()
4162 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4163 {
4164 let y = display_row_range.start.as_f32() * line_height
4165 + text_hitbox.bounds.top()
4166 - scroll_pixel_position.y;
4167 let x = text_hitbox.bounds.right() - px(100.);
4168
4169 let mut element = diff_hunk_controls(
4170 display_row_range.start.0,
4171 multi_buffer_range.clone(),
4172 line_height,
4173 &editor,
4174 cx,
4175 );
4176 element.prepaint_as_root(
4177 gpui::Point::new(x, y),
4178 size(px(100.0), line_height).into(),
4179 window,
4180 cx,
4181 );
4182 controls.push(element);
4183 }
4184 }
4185 }
4186
4187 controls
4188 }
4189
4190 #[allow(clippy::too_many_arguments)]
4191 fn layout_signature_help(
4192 &self,
4193 hitbox: &Hitbox,
4194 content_origin: gpui::Point<Pixels>,
4195 scroll_pixel_position: gpui::Point<Pixels>,
4196 newest_selection_head: Option<DisplayPoint>,
4197 start_row: DisplayRow,
4198 line_layouts: &[LineWithInvisibles],
4199 line_height: Pixels,
4200 em_width: Pixels,
4201 window: &mut Window,
4202 cx: &mut App,
4203 ) {
4204 if !self.editor.focus_handle(cx).is_focused(window) {
4205 return;
4206 }
4207 let Some(newest_selection_head) = newest_selection_head else {
4208 return;
4209 };
4210 let selection_row = newest_selection_head.row();
4211 if selection_row < start_row {
4212 return;
4213 }
4214 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4215 else {
4216 return;
4217 };
4218
4219 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4220 - scroll_pixel_position.x
4221 + content_origin.x;
4222 let start_y =
4223 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4224
4225 let max_size = size(
4226 (120. * em_width) // Default size
4227 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4228 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4229 (16. * line_height) // Default size
4230 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4231 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4232 );
4233
4234 let maybe_element = self.editor.update(cx, |editor, cx| {
4235 if let Some(popover) = editor.signature_help_state.popover_mut() {
4236 let element = popover.render(
4237 &self.style,
4238 max_size,
4239 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4240 cx,
4241 );
4242 Some(element)
4243 } else {
4244 None
4245 }
4246 });
4247 if let Some(mut element) = maybe_element {
4248 let window_size = window.viewport_size();
4249 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4250 let mut point = point(start_x, start_y - size.height);
4251
4252 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4253 if point.x + size.width >= window_size.width {
4254 point.x = window_size.width - size.width;
4255 }
4256
4257 window.defer_draw(element, point, 1)
4258 }
4259 }
4260
4261 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4262 window.paint_layer(layout.hitbox.bounds, |window| {
4263 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4264 let gutter_bg = cx.theme().colors().editor_gutter_background;
4265 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4266 window.paint_quad(fill(
4267 layout.position_map.text_hitbox.bounds,
4268 self.style.background,
4269 ));
4270
4271 if let EditorMode::Full = layout.mode {
4272 let mut active_rows = layout.active_rows.iter().peekable();
4273 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4274 let mut end_row = start_row.0;
4275 while active_rows
4276 .peek()
4277 .map_or(false, |(active_row, has_selection)| {
4278 active_row.0 == end_row + 1
4279 && *has_selection == contains_non_empty_selection
4280 })
4281 {
4282 active_rows.next().unwrap();
4283 end_row += 1;
4284 }
4285
4286 if !contains_non_empty_selection {
4287 let highlight_h_range =
4288 match layout.position_map.snapshot.current_line_highlight {
4289 CurrentLineHighlight::Gutter => Some(Range {
4290 start: layout.hitbox.left(),
4291 end: layout.gutter_hitbox.right(),
4292 }),
4293 CurrentLineHighlight::Line => Some(Range {
4294 start: layout.position_map.text_hitbox.bounds.left(),
4295 end: layout.position_map.text_hitbox.bounds.right(),
4296 }),
4297 CurrentLineHighlight::All => Some(Range {
4298 start: layout.hitbox.left(),
4299 end: layout.hitbox.right(),
4300 }),
4301 CurrentLineHighlight::None => None,
4302 };
4303 if let Some(range) = highlight_h_range {
4304 let active_line_bg = cx.theme().colors().editor_active_line_background;
4305 let bounds = Bounds {
4306 origin: point(
4307 range.start,
4308 layout.hitbox.origin.y
4309 + (start_row.as_f32() - scroll_top)
4310 * layout.position_map.line_height,
4311 ),
4312 size: size(
4313 range.end - range.start,
4314 layout.position_map.line_height
4315 * (end_row - start_row.0 + 1) as f32,
4316 ),
4317 };
4318 window.paint_quad(fill(bounds, active_line_bg));
4319 }
4320 }
4321 }
4322
4323 let mut paint_highlight =
4324 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4325 let origin = point(
4326 layout.hitbox.origin.x,
4327 layout.hitbox.origin.y
4328 + (highlight_row_start.as_f32() - scroll_top)
4329 * layout.position_map.line_height,
4330 );
4331 let size = size(
4332 layout.hitbox.size.width,
4333 layout.position_map.line_height
4334 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4335 );
4336 window.paint_quad(fill(Bounds { origin, size }, color));
4337 };
4338
4339 let mut current_paint: Option<(gpui::Background, Range<DisplayRow>)> = None;
4340 for (&new_row, &new_background) in &layout.highlighted_rows {
4341 match &mut current_paint {
4342 Some((current_background, current_range)) => {
4343 let current_background = *current_background;
4344 let new_range_started = current_background != new_background
4345 || current_range.end.next_row() != new_row;
4346 if new_range_started {
4347 paint_highlight(
4348 current_range.start,
4349 current_range.end,
4350 current_background,
4351 );
4352 current_paint = Some((new_background, new_row..new_row));
4353 continue;
4354 } else {
4355 current_range.end = current_range.end.next_row();
4356 }
4357 }
4358 None => current_paint = Some((new_background, new_row..new_row)),
4359 };
4360 }
4361 if let Some((color, range)) = current_paint {
4362 paint_highlight(range.start, range.end, color);
4363 }
4364
4365 let scroll_left =
4366 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4367
4368 for (wrap_position, active) in layout.wrap_guides.iter() {
4369 let x = (layout.position_map.text_hitbox.origin.x
4370 + *wrap_position
4371 + layout.position_map.em_width / 2.)
4372 - scroll_left;
4373
4374 let show_scrollbars = {
4375 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4376
4377 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4378 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4379 };
4380
4381 if x < layout.position_map.text_hitbox.origin.x
4382 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4383 {
4384 continue;
4385 }
4386
4387 let color = if *active {
4388 cx.theme().colors().editor_active_wrap_guide
4389 } else {
4390 cx.theme().colors().editor_wrap_guide
4391 };
4392 window.paint_quad(fill(
4393 Bounds {
4394 origin: point(x, layout.position_map.text_hitbox.origin.y),
4395 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4396 },
4397 color,
4398 ));
4399 }
4400 }
4401 })
4402 }
4403
4404 fn paint_indent_guides(
4405 &mut self,
4406 layout: &mut EditorLayout,
4407 window: &mut Window,
4408 cx: &mut App,
4409 ) {
4410 let Some(indent_guides) = &layout.indent_guides else {
4411 return;
4412 };
4413
4414 let faded_color = |color: Hsla, alpha: f32| {
4415 let mut faded = color;
4416 faded.a = alpha;
4417 faded
4418 };
4419
4420 for indent_guide in indent_guides {
4421 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4422 let settings = indent_guide.settings;
4423
4424 // TODO fixed for now, expose them through themes later
4425 const INDENT_AWARE_ALPHA: f32 = 0.2;
4426 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4427 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4428 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4429
4430 let line_color = match (settings.coloring, indent_guide.active) {
4431 (IndentGuideColoring::Disabled, _) => None,
4432 (IndentGuideColoring::Fixed, false) => {
4433 Some(cx.theme().colors().editor_indent_guide)
4434 }
4435 (IndentGuideColoring::Fixed, true) => {
4436 Some(cx.theme().colors().editor_indent_guide_active)
4437 }
4438 (IndentGuideColoring::IndentAware, false) => {
4439 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4440 }
4441 (IndentGuideColoring::IndentAware, true) => {
4442 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4443 }
4444 };
4445
4446 let background_color = match (settings.background_coloring, indent_guide.active) {
4447 (IndentGuideBackgroundColoring::Disabled, _) => None,
4448 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4449 indent_accent_colors,
4450 INDENT_AWARE_BACKGROUND_ALPHA,
4451 )),
4452 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4453 indent_accent_colors,
4454 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4455 )),
4456 };
4457
4458 let requested_line_width = if indent_guide.active {
4459 settings.active_line_width
4460 } else {
4461 settings.line_width
4462 }
4463 .clamp(1, 10);
4464 let mut line_indicator_width = 0.;
4465 if let Some(color) = line_color {
4466 window.paint_quad(fill(
4467 Bounds {
4468 origin: indent_guide.origin,
4469 size: size(px(requested_line_width as f32), indent_guide.length),
4470 },
4471 color,
4472 ));
4473 line_indicator_width = requested_line_width as f32;
4474 }
4475
4476 if let Some(color) = background_color {
4477 let width = indent_guide.single_indent_width - px(line_indicator_width);
4478 window.paint_quad(fill(
4479 Bounds {
4480 origin: point(
4481 indent_guide.origin.x + px(line_indicator_width),
4482 indent_guide.origin.y,
4483 ),
4484 size: size(width, indent_guide.length),
4485 },
4486 color,
4487 ));
4488 }
4489 }
4490 }
4491
4492 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4493 let is_singleton = self.editor.read(cx).is_singleton(cx);
4494
4495 let line_height = layout.position_map.line_height;
4496 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4497
4498 for LineNumberLayout {
4499 shaped_line,
4500 hitbox,
4501 display_row,
4502 } in layout.line_numbers.values()
4503 {
4504 let Some(hitbox) = hitbox else {
4505 continue;
4506 };
4507
4508 let is_active = layout.active_rows.contains_key(&display_row);
4509
4510 let color = if is_active {
4511 cx.theme().colors().editor_active_line_number
4512 } else if !is_singleton && hitbox.is_hovered(window) {
4513 cx.theme().colors().editor_hover_line_number
4514 } else {
4515 cx.theme().colors().editor_line_number
4516 };
4517
4518 let Some(line) = self
4519 .shape_line_number(shaped_line.text.clone(), color, window)
4520 .log_err()
4521 else {
4522 continue;
4523 };
4524 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4525 continue;
4526 };
4527 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4528 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4529 if is_singleton {
4530 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4531 } else {
4532 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4533 }
4534 }
4535 }
4536
4537 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4538 if layout.display_hunks.is_empty() {
4539 return;
4540 }
4541
4542 let line_height = layout.position_map.line_height;
4543 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4544 for (hunk, hitbox) in &layout.display_hunks {
4545 let hunk_to_paint = match hunk {
4546 DisplayDiffHunk::Folded { .. } => {
4547 let hunk_bounds = Self::diff_hunk_bounds(
4548 &layout.position_map.snapshot,
4549 line_height,
4550 layout.gutter_hitbox.bounds,
4551 hunk,
4552 );
4553 Some((
4554 hunk_bounds,
4555 cx.theme().status().modified,
4556 Corners::all(px(0.)),
4557 &DiffHunkSecondaryStatus::None,
4558 ))
4559 }
4560 DisplayDiffHunk::Unfolded {
4561 status,
4562 display_row_range,
4563 ..
4564 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4565 DiffHunkStatus::Added(secondary_status) => (
4566 hunk_hitbox.bounds,
4567 cx.theme().status().created,
4568 Corners::all(px(0.)),
4569 secondary_status,
4570 ),
4571 DiffHunkStatus::Modified(secondary_status) => (
4572 hunk_hitbox.bounds,
4573 cx.theme().status().modified,
4574 Corners::all(px(0.)),
4575 secondary_status,
4576 ),
4577 DiffHunkStatus::Removed(secondary_status)
4578 if !display_row_range.is_empty() =>
4579 {
4580 (
4581 hunk_hitbox.bounds,
4582 cx.theme().status().deleted,
4583 Corners::all(px(0.)),
4584 secondary_status,
4585 )
4586 }
4587 DiffHunkStatus::Removed(secondary_status) => (
4588 Bounds::new(
4589 point(
4590 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4591 hunk_hitbox.origin.y,
4592 ),
4593 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4594 ),
4595 cx.theme().status().deleted,
4596 Corners::all(1. * line_height),
4597 secondary_status,
4598 ),
4599 }),
4600 };
4601
4602 if let Some((hunk_bounds, mut background_color, corner_radii, secondary_status)) =
4603 hunk_to_paint
4604 {
4605 if *secondary_status != DiffHunkSecondaryStatus::None {
4606 background_color.a *= 0.6;
4607 }
4608 window.paint_quad(quad(
4609 hunk_bounds,
4610 corner_radii,
4611 background_color,
4612 Edges::default(),
4613 transparent_black(),
4614 ));
4615 }
4616 }
4617 });
4618 }
4619
4620 fn diff_hunk_bounds(
4621 snapshot: &EditorSnapshot,
4622 line_height: Pixels,
4623 gutter_bounds: Bounds<Pixels>,
4624 hunk: &DisplayDiffHunk,
4625 ) -> Bounds<Pixels> {
4626 let scroll_position = snapshot.scroll_position();
4627 let scroll_top = scroll_position.y * line_height;
4628 let gutter_strip_width = (0.275 * line_height).floor();
4629
4630 match hunk {
4631 DisplayDiffHunk::Folded { display_row, .. } => {
4632 let start_y = display_row.as_f32() * line_height - scroll_top;
4633 let end_y = start_y + line_height;
4634 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4635 let highlight_size = size(gutter_strip_width, end_y - start_y);
4636 Bounds::new(highlight_origin, highlight_size)
4637 }
4638 DisplayDiffHunk::Unfolded {
4639 display_row_range,
4640 status,
4641 ..
4642 } => {
4643 if status.is_removed() && display_row_range.is_empty() {
4644 let row = display_row_range.start;
4645
4646 let offset = line_height / 2.;
4647 let start_y = row.as_f32() * line_height - offset - scroll_top;
4648 let end_y = start_y + line_height;
4649
4650 let width = (0.35 * line_height).floor();
4651 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4652 let highlight_size = size(width, end_y - start_y);
4653 Bounds::new(highlight_origin, highlight_size)
4654 } else {
4655 let start_row = display_row_range.start;
4656 let end_row = display_row_range.end;
4657 // If we're in a multibuffer, row range span might include an
4658 // excerpt header, so if we were to draw the marker straight away,
4659 // the hunk might include the rows of that header.
4660 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4661 // Instead, we simply check whether the range we're dealing with includes
4662 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4663 let end_row_in_current_excerpt = snapshot
4664 .blocks_in_range(start_row..end_row)
4665 .find_map(|(start_row, block)| {
4666 if matches!(block, Block::ExcerptBoundary { .. }) {
4667 Some(start_row)
4668 } else {
4669 None
4670 }
4671 })
4672 .unwrap_or(end_row);
4673
4674 let start_y = start_row.as_f32() * line_height - scroll_top;
4675 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4676
4677 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4678 let highlight_size = size(gutter_strip_width, end_y - start_y);
4679 Bounds::new(highlight_origin, highlight_size)
4680 }
4681 }
4682 }
4683 }
4684
4685 fn paint_gutter_indicators(
4686 &self,
4687 layout: &mut EditorLayout,
4688 window: &mut Window,
4689 cx: &mut App,
4690 ) {
4691 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4692 window.with_element_namespace("crease_toggles", |window| {
4693 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4694 crease_toggle.paint(window, cx);
4695 }
4696 });
4697
4698 for test_indicator in layout.test_indicators.iter_mut() {
4699 test_indicator.paint(window, cx);
4700 }
4701
4702 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4703 indicator.paint(window, cx);
4704 }
4705 });
4706 }
4707
4708 fn paint_gutter_highlights(
4709 &self,
4710 layout: &mut EditorLayout,
4711 window: &mut Window,
4712 cx: &mut App,
4713 ) {
4714 for (_, hunk_hitbox) in &layout.display_hunks {
4715 if let Some(hunk_hitbox) = hunk_hitbox {
4716 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4717 }
4718 }
4719
4720 let show_git_gutter = layout
4721 .position_map
4722 .snapshot
4723 .show_git_diff_gutter
4724 .unwrap_or_else(|| {
4725 matches!(
4726 ProjectSettings::get_global(cx).git.git_gutter,
4727 Some(GitGutterSetting::TrackedFiles)
4728 )
4729 });
4730 if show_git_gutter {
4731 Self::paint_diff_hunks(layout, window, cx)
4732 }
4733
4734 let highlight_width = 0.275 * layout.position_map.line_height;
4735 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4736 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4737 for (range, color) in &layout.highlighted_gutter_ranges {
4738 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4739 layout.visible_display_row_range.start - DisplayRow(1)
4740 } else {
4741 range.start.row()
4742 };
4743 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4744 layout.visible_display_row_range.end + DisplayRow(1)
4745 } else {
4746 range.end.row()
4747 };
4748
4749 let start_y = layout.gutter_hitbox.top()
4750 + start_row.0 as f32 * layout.position_map.line_height
4751 - layout.position_map.scroll_pixel_position.y;
4752 let end_y = layout.gutter_hitbox.top()
4753 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4754 - layout.position_map.scroll_pixel_position.y;
4755 let bounds = Bounds::from_corners(
4756 point(layout.gutter_hitbox.left(), start_y),
4757 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4758 );
4759 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4760 }
4761 });
4762 }
4763
4764 fn paint_blamed_display_rows(
4765 &self,
4766 layout: &mut EditorLayout,
4767 window: &mut Window,
4768 cx: &mut App,
4769 ) {
4770 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4771 return;
4772 };
4773
4774 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4775 for mut blame_element in blamed_display_rows.into_iter() {
4776 blame_element.paint(window, cx);
4777 }
4778 })
4779 }
4780
4781 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4782 window.with_content_mask(
4783 Some(ContentMask {
4784 bounds: layout.position_map.text_hitbox.bounds,
4785 }),
4786 |window| {
4787 let cursor_style = if self
4788 .editor
4789 .read(cx)
4790 .hovered_link_state
4791 .as_ref()
4792 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4793 {
4794 CursorStyle::PointingHand
4795 } else {
4796 CursorStyle::IBeam
4797 };
4798 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4799
4800 let invisible_display_ranges = self.paint_highlights(layout, window);
4801 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4802 self.paint_redactions(layout, window);
4803 self.paint_cursors(layout, window, cx);
4804 self.paint_inline_blame(layout, window, cx);
4805 self.paint_diff_hunk_controls(layout, window, cx);
4806 window.with_element_namespace("crease_trailers", |window| {
4807 for trailer in layout.crease_trailers.iter_mut().flatten() {
4808 trailer.element.paint(window, cx);
4809 }
4810 });
4811 },
4812 )
4813 }
4814
4815 fn paint_highlights(
4816 &mut self,
4817 layout: &mut EditorLayout,
4818 window: &mut Window,
4819 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4820 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4821 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4822 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4823 for (range, color) in &layout.highlighted_ranges {
4824 self.paint_highlighted_range(
4825 range.clone(),
4826 *color,
4827 Pixels::ZERO,
4828 line_end_overshoot,
4829 layout,
4830 window,
4831 );
4832 }
4833
4834 let corner_radius = 0.15 * layout.position_map.line_height;
4835
4836 for (player_color, selections) in &layout.selections {
4837 for selection in selections.iter() {
4838 self.paint_highlighted_range(
4839 selection.range.clone(),
4840 player_color.selection,
4841 corner_radius,
4842 corner_radius * 2.,
4843 layout,
4844 window,
4845 );
4846
4847 if selection.is_local && !selection.range.is_empty() {
4848 invisible_display_ranges.push(selection.range.clone());
4849 }
4850 }
4851 }
4852 invisible_display_ranges
4853 })
4854 }
4855
4856 fn paint_lines(
4857 &mut self,
4858 invisible_display_ranges: &[Range<DisplayPoint>],
4859 layout: &mut EditorLayout,
4860 window: &mut Window,
4861 cx: &mut App,
4862 ) {
4863 let whitespace_setting = self
4864 .editor
4865 .read(cx)
4866 .buffer
4867 .read(cx)
4868 .settings_at(0, cx)
4869 .show_whitespaces;
4870
4871 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4872 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4873 line_with_invisibles.draw(
4874 layout,
4875 row,
4876 layout.content_origin,
4877 whitespace_setting,
4878 invisible_display_ranges,
4879 window,
4880 cx,
4881 )
4882 }
4883
4884 for line_element in &mut layout.line_elements {
4885 line_element.paint(window, cx);
4886 }
4887 }
4888
4889 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4890 if layout.redacted_ranges.is_empty() {
4891 return;
4892 }
4893
4894 let line_end_overshoot = layout.line_end_overshoot();
4895
4896 // A softer than perfect black
4897 let redaction_color = gpui::rgb(0x0e1111);
4898
4899 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4900 for range in layout.redacted_ranges.iter() {
4901 self.paint_highlighted_range(
4902 range.clone(),
4903 redaction_color.into(),
4904 Pixels::ZERO,
4905 line_end_overshoot,
4906 layout,
4907 window,
4908 );
4909 }
4910 });
4911 }
4912
4913 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4914 for cursor in &mut layout.visible_cursors {
4915 cursor.paint(layout.content_origin, window, cx);
4916 }
4917 }
4918
4919 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4920 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4921
4922 if let Some(scrollbar_layout) = scrollbar_x {
4923 let hitbox = scrollbar_layout.hitbox.clone();
4924 let text_unit_size = scrollbar_layout.text_unit_size;
4925 let visible_range = scrollbar_layout.visible_range.clone();
4926 let thumb_bounds = scrollbar_layout.thumb_bounds();
4927
4928 if scrollbar_layout.visible {
4929 window.paint_layer(hitbox.bounds, |window| {
4930 window.paint_quad(quad(
4931 hitbox.bounds,
4932 Corners::default(),
4933 cx.theme().colors().scrollbar_track_background,
4934 Edges {
4935 top: Pixels::ZERO,
4936 right: Pixels::ZERO,
4937 bottom: Pixels::ZERO,
4938 left: Pixels::ZERO,
4939 },
4940 cx.theme().colors().scrollbar_track_border,
4941 ));
4942
4943 window.paint_quad(quad(
4944 thumb_bounds,
4945 Corners::default(),
4946 cx.theme().colors().scrollbar_thumb_background,
4947 Edges {
4948 top: Pixels::ZERO,
4949 right: Pixels::ZERO,
4950 bottom: Pixels::ZERO,
4951 left: ScrollbarLayout::BORDER_WIDTH,
4952 },
4953 cx.theme().colors().scrollbar_thumb_border,
4954 ));
4955 })
4956 }
4957
4958 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4959
4960 window.on_mouse_event({
4961 let editor = self.editor.clone();
4962
4963 // there may be a way to avoid this clone
4964 let hitbox = hitbox.clone();
4965
4966 let mut mouse_position = window.mouse_position();
4967 move |event: &MouseMoveEvent, phase, window, cx| {
4968 if phase == DispatchPhase::Capture {
4969 return;
4970 }
4971
4972 editor.update(cx, |editor, cx| {
4973 if event.pressed_button == Some(MouseButton::Left)
4974 && editor
4975 .scroll_manager
4976 .is_dragging_scrollbar(Axis::Horizontal)
4977 {
4978 let x = mouse_position.x;
4979 let new_x = event.position.x;
4980 if (hitbox.left()..hitbox.right()).contains(&x) {
4981 let mut position = editor.scroll_position(cx);
4982
4983 position.x += (new_x - x) / text_unit_size;
4984 if position.x < 0.0 {
4985 position.x = 0.0;
4986 }
4987 editor.set_scroll_position(position, window, cx);
4988 }
4989
4990 cx.stop_propagation();
4991 } else {
4992 editor.scroll_manager.set_is_dragging_scrollbar(
4993 Axis::Horizontal,
4994 false,
4995 cx,
4996 );
4997
4998 if hitbox.is_hovered(window) {
4999 editor.scroll_manager.show_scrollbar(window, cx);
5000 }
5001 }
5002 mouse_position = event.position;
5003 })
5004 }
5005 });
5006
5007 if self
5008 .editor
5009 .read(cx)
5010 .scroll_manager
5011 .is_dragging_scrollbar(Axis::Horizontal)
5012 {
5013 window.on_mouse_event({
5014 let editor = self.editor.clone();
5015 move |_: &MouseUpEvent, phase, _, cx| {
5016 if phase == DispatchPhase::Capture {
5017 return;
5018 }
5019
5020 editor.update(cx, |editor, cx| {
5021 editor.scroll_manager.set_is_dragging_scrollbar(
5022 Axis::Horizontal,
5023 false,
5024 cx,
5025 );
5026 cx.stop_propagation();
5027 });
5028 }
5029 });
5030 } else {
5031 window.on_mouse_event({
5032 let editor = self.editor.clone();
5033
5034 move |event: &MouseDownEvent, phase, window, cx| {
5035 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5036 return;
5037 }
5038
5039 editor.update(cx, |editor, cx| {
5040 editor.scroll_manager.set_is_dragging_scrollbar(
5041 Axis::Horizontal,
5042 true,
5043 cx,
5044 );
5045
5046 let x = event.position.x;
5047
5048 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5049 let center_row =
5050 ((x - hitbox.left()) / text_unit_size).round() as u32;
5051 let top_row = center_row.saturating_sub(
5052 (visible_range.end - visible_range.start) as u32 / 2,
5053 );
5054
5055 let mut position = editor.scroll_position(cx);
5056 position.x = top_row as f32;
5057
5058 editor.set_scroll_position(position, window, cx);
5059 } else {
5060 editor.scroll_manager.show_scrollbar(window, cx);
5061 }
5062
5063 cx.stop_propagation();
5064 });
5065 }
5066 });
5067 }
5068 }
5069
5070 if let Some(scrollbar_layout) = scrollbar_y {
5071 let hitbox = scrollbar_layout.hitbox.clone();
5072 let text_unit_size = scrollbar_layout.text_unit_size;
5073 let visible_range = scrollbar_layout.visible_range.clone();
5074 let thumb_bounds = scrollbar_layout.thumb_bounds();
5075
5076 if scrollbar_layout.visible {
5077 window.paint_layer(hitbox.bounds, |window| {
5078 window.paint_quad(quad(
5079 hitbox.bounds,
5080 Corners::default(),
5081 cx.theme().colors().scrollbar_track_background,
5082 Edges {
5083 top: Pixels::ZERO,
5084 right: Pixels::ZERO,
5085 bottom: Pixels::ZERO,
5086 left: ScrollbarLayout::BORDER_WIDTH,
5087 },
5088 cx.theme().colors().scrollbar_track_border,
5089 ));
5090
5091 let fast_markers =
5092 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5093 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5094 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5095
5096 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5097 for marker in markers.iter().chain(&fast_markers) {
5098 let mut marker = marker.clone();
5099 marker.bounds.origin += hitbox.origin;
5100 window.paint_quad(marker);
5101 }
5102
5103 window.paint_quad(quad(
5104 thumb_bounds,
5105 Corners::default(),
5106 cx.theme().colors().scrollbar_thumb_background,
5107 Edges {
5108 top: Pixels::ZERO,
5109 right: Pixels::ZERO,
5110 bottom: Pixels::ZERO,
5111 left: ScrollbarLayout::BORDER_WIDTH,
5112 },
5113 cx.theme().colors().scrollbar_thumb_border,
5114 ));
5115 });
5116 }
5117
5118 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5119
5120 window.on_mouse_event({
5121 let editor = self.editor.clone();
5122
5123 let hitbox = hitbox.clone();
5124
5125 let mut mouse_position = window.mouse_position();
5126 move |event: &MouseMoveEvent, phase, window, cx| {
5127 if phase == DispatchPhase::Capture {
5128 return;
5129 }
5130
5131 editor.update(cx, |editor, cx| {
5132 if event.pressed_button == Some(MouseButton::Left)
5133 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5134 {
5135 let y = mouse_position.y;
5136 let new_y = event.position.y;
5137 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5138 let mut position = editor.scroll_position(cx);
5139 position.y += (new_y - y) / text_unit_size;
5140 if position.y < 0.0 {
5141 position.y = 0.0;
5142 }
5143 editor.set_scroll_position(position, window, cx);
5144 }
5145 } else {
5146 editor.scroll_manager.set_is_dragging_scrollbar(
5147 Axis::Vertical,
5148 false,
5149 cx,
5150 );
5151
5152 if hitbox.is_hovered(window) {
5153 editor.scroll_manager.show_scrollbar(window, cx);
5154 }
5155 }
5156 mouse_position = event.position;
5157 })
5158 }
5159 });
5160
5161 if self
5162 .editor
5163 .read(cx)
5164 .scroll_manager
5165 .is_dragging_scrollbar(Axis::Vertical)
5166 {
5167 window.on_mouse_event({
5168 let editor = self.editor.clone();
5169 move |_: &MouseUpEvent, phase, _, cx| {
5170 if phase == DispatchPhase::Capture {
5171 return;
5172 }
5173
5174 editor.update(cx, |editor, cx| {
5175 editor.scroll_manager.set_is_dragging_scrollbar(
5176 Axis::Vertical,
5177 false,
5178 cx,
5179 );
5180 cx.stop_propagation();
5181 });
5182 }
5183 });
5184 } else {
5185 window.on_mouse_event({
5186 let editor = self.editor.clone();
5187
5188 move |event: &MouseDownEvent, phase, window, cx| {
5189 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5190 return;
5191 }
5192
5193 editor.update(cx, |editor, cx| {
5194 editor.scroll_manager.set_is_dragging_scrollbar(
5195 Axis::Vertical,
5196 true,
5197 cx,
5198 );
5199
5200 let y = event.position.y;
5201 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5202 let center_row =
5203 ((y - hitbox.top()) / text_unit_size).round() as u32;
5204 let top_row = center_row.saturating_sub(
5205 (visible_range.end - visible_range.start) as u32 / 2,
5206 );
5207 let mut position = editor.scroll_position(cx);
5208 position.y = top_row as f32;
5209 editor.set_scroll_position(position, window, cx);
5210 } else {
5211 editor.scroll_manager.show_scrollbar(window, cx);
5212 }
5213
5214 cx.stop_propagation();
5215 });
5216 }
5217 });
5218 }
5219 }
5220 }
5221
5222 fn collect_fast_scrollbar_markers(
5223 &self,
5224 layout: &EditorLayout,
5225 scrollbar_layout: &ScrollbarLayout,
5226 cx: &mut App,
5227 ) -> Vec<PaintQuad> {
5228 const LIMIT: usize = 100;
5229 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5230 return vec![];
5231 }
5232 let cursor_ranges = layout
5233 .cursors
5234 .iter()
5235 .map(|(point, color)| ColoredRange {
5236 start: point.row(),
5237 end: point.row(),
5238 color: *color,
5239 })
5240 .collect_vec();
5241 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5242 }
5243
5244 fn refresh_slow_scrollbar_markers(
5245 &self,
5246 layout: &EditorLayout,
5247 scrollbar_layout: &ScrollbarLayout,
5248 window: &mut Window,
5249 cx: &mut App,
5250 ) {
5251 self.editor.update(cx, |editor, cx| {
5252 if !editor.is_singleton(cx)
5253 || !editor
5254 .scrollbar_marker_state
5255 .should_refresh(scrollbar_layout.hitbox.size)
5256 {
5257 return;
5258 }
5259
5260 let scrollbar_layout = scrollbar_layout.clone();
5261 let background_highlights = editor.background_highlights.clone();
5262 let snapshot = layout.position_map.snapshot.clone();
5263 let theme = cx.theme().clone();
5264 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5265
5266 editor.scrollbar_marker_state.dirty = false;
5267 editor.scrollbar_marker_state.pending_refresh =
5268 Some(cx.spawn_in(window, |editor, mut cx| async move {
5269 let scrollbar_size = scrollbar_layout.hitbox.size;
5270 let scrollbar_markers = cx
5271 .background_executor()
5272 .spawn(async move {
5273 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5274 let mut marker_quads = Vec::new();
5275 if scrollbar_settings.git_diff {
5276 let marker_row_ranges =
5277 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5278 let start_display_row =
5279 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5280 .to_display_point(&snapshot.display_snapshot)
5281 .row();
5282 let mut end_display_row =
5283 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5284 .to_display_point(&snapshot.display_snapshot)
5285 .row();
5286 if end_display_row != start_display_row {
5287 end_display_row.0 -= 1;
5288 }
5289 let color = match &hunk.status() {
5290 DiffHunkStatus::Added(_) => theme.status().created,
5291 DiffHunkStatus::Modified(_) => theme.status().modified,
5292 DiffHunkStatus::Removed(_) => theme.status().deleted,
5293 };
5294 ColoredRange {
5295 start: start_display_row,
5296 end: end_display_row,
5297 color,
5298 }
5299 });
5300
5301 marker_quads.extend(
5302 scrollbar_layout
5303 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5304 );
5305 }
5306
5307 for (background_highlight_id, (_, background_ranges)) in
5308 background_highlights.iter()
5309 {
5310 let is_search_highlights = *background_highlight_id
5311 == TypeId::of::<BufferSearchHighlights>();
5312 let is_symbol_occurrences = *background_highlight_id
5313 == TypeId::of::<DocumentHighlightRead>()
5314 || *background_highlight_id
5315 == TypeId::of::<DocumentHighlightWrite>();
5316 if (is_search_highlights && scrollbar_settings.search_results)
5317 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5318 {
5319 let mut color = theme.status().info;
5320 if is_symbol_occurrences {
5321 color.fade_out(0.5);
5322 }
5323 let marker_row_ranges = background_ranges.iter().map(|range| {
5324 let display_start = range
5325 .start
5326 .to_display_point(&snapshot.display_snapshot);
5327 let display_end =
5328 range.end.to_display_point(&snapshot.display_snapshot);
5329 ColoredRange {
5330 start: display_start.row(),
5331 end: display_end.row(),
5332 color,
5333 }
5334 });
5335 marker_quads.extend(
5336 scrollbar_layout
5337 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5338 );
5339 }
5340 }
5341
5342 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5343 let diagnostics = snapshot
5344 .buffer_snapshot
5345 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5346 // Don't show diagnostics the user doesn't care about
5347 .filter(|diagnostic| {
5348 match (
5349 scrollbar_settings.diagnostics,
5350 diagnostic.diagnostic.severity,
5351 ) {
5352 (ScrollbarDiagnostics::All, _) => true,
5353 (
5354 ScrollbarDiagnostics::Error,
5355 DiagnosticSeverity::ERROR,
5356 ) => true,
5357 (
5358 ScrollbarDiagnostics::Warning,
5359 DiagnosticSeverity::ERROR
5360 | DiagnosticSeverity::WARNING,
5361 ) => true,
5362 (
5363 ScrollbarDiagnostics::Information,
5364 DiagnosticSeverity::ERROR
5365 | DiagnosticSeverity::WARNING
5366 | DiagnosticSeverity::INFORMATION,
5367 ) => true,
5368 (_, _) => false,
5369 }
5370 })
5371 // We want to sort by severity, in order to paint the most severe diagnostics last.
5372 .sorted_by_key(|diagnostic| {
5373 std::cmp::Reverse(diagnostic.diagnostic.severity)
5374 });
5375
5376 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5377 let start_display = diagnostic
5378 .range
5379 .start
5380 .to_display_point(&snapshot.display_snapshot);
5381 let end_display = diagnostic
5382 .range
5383 .end
5384 .to_display_point(&snapshot.display_snapshot);
5385 let color = match diagnostic.diagnostic.severity {
5386 DiagnosticSeverity::ERROR => theme.status().error,
5387 DiagnosticSeverity::WARNING => theme.status().warning,
5388 DiagnosticSeverity::INFORMATION => theme.status().info,
5389 _ => theme.status().hint,
5390 };
5391 ColoredRange {
5392 start: start_display.row(),
5393 end: end_display.row(),
5394 color,
5395 }
5396 });
5397 marker_quads.extend(
5398 scrollbar_layout
5399 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5400 );
5401 }
5402
5403 Arc::from(marker_quads)
5404 })
5405 .await;
5406
5407 editor.update(&mut cx, |editor, cx| {
5408 editor.scrollbar_marker_state.markers = scrollbar_markers;
5409 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5410 editor.scrollbar_marker_state.pending_refresh = None;
5411 cx.notify();
5412 })?;
5413
5414 Ok(())
5415 }));
5416 });
5417 }
5418
5419 #[allow(clippy::too_many_arguments)]
5420 fn paint_highlighted_range(
5421 &self,
5422 range: Range<DisplayPoint>,
5423 color: Hsla,
5424 corner_radius: Pixels,
5425 line_end_overshoot: Pixels,
5426 layout: &EditorLayout,
5427 window: &mut Window,
5428 ) {
5429 let start_row = layout.visible_display_row_range.start;
5430 let end_row = layout.visible_display_row_range.end;
5431 if range.start != range.end {
5432 let row_range = if range.end.column() == 0 {
5433 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5434 } else {
5435 cmp::max(range.start.row(), start_row)
5436 ..cmp::min(range.end.row().next_row(), end_row)
5437 };
5438
5439 let highlighted_range = HighlightedRange {
5440 color,
5441 line_height: layout.position_map.line_height,
5442 corner_radius,
5443 start_y: layout.content_origin.y
5444 + row_range.start.as_f32() * layout.position_map.line_height
5445 - layout.position_map.scroll_pixel_position.y,
5446 lines: row_range
5447 .iter_rows()
5448 .map(|row| {
5449 let line_layout =
5450 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5451 HighlightedRangeLine {
5452 start_x: if row == range.start.row() {
5453 layout.content_origin.x
5454 + line_layout.x_for_index(range.start.column() as usize)
5455 - layout.position_map.scroll_pixel_position.x
5456 } else {
5457 layout.content_origin.x
5458 - layout.position_map.scroll_pixel_position.x
5459 },
5460 end_x: if row == range.end.row() {
5461 layout.content_origin.x
5462 + line_layout.x_for_index(range.end.column() as usize)
5463 - layout.position_map.scroll_pixel_position.x
5464 } else {
5465 layout.content_origin.x + line_layout.width + line_end_overshoot
5466 - layout.position_map.scroll_pixel_position.x
5467 },
5468 }
5469 })
5470 .collect(),
5471 };
5472
5473 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5474 }
5475 }
5476
5477 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5478 if let Some(mut inline_blame) = layout.inline_blame.take() {
5479 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5480 inline_blame.paint(window, cx);
5481 })
5482 }
5483 }
5484
5485 fn paint_diff_hunk_controls(
5486 &mut self,
5487 layout: &mut EditorLayout,
5488 window: &mut Window,
5489 cx: &mut App,
5490 ) {
5491 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5492 diff_hunk_control.paint(window, cx);
5493 }
5494 }
5495
5496 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5497 for mut block in layout.blocks.drain(..) {
5498 block.element.paint(window, cx);
5499 }
5500 }
5501
5502 fn paint_inline_completion_popover(
5503 &mut self,
5504 layout: &mut EditorLayout,
5505 window: &mut Window,
5506 cx: &mut App,
5507 ) {
5508 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5509 inline_completion_popover.paint(window, cx);
5510 }
5511 }
5512
5513 fn paint_mouse_context_menu(
5514 &mut self,
5515 layout: &mut EditorLayout,
5516 window: &mut Window,
5517 cx: &mut App,
5518 ) {
5519 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5520 mouse_context_menu.paint(window, cx);
5521 }
5522 }
5523
5524 fn paint_scroll_wheel_listener(
5525 &mut self,
5526 layout: &EditorLayout,
5527 window: &mut Window,
5528 cx: &mut App,
5529 ) {
5530 window.on_mouse_event({
5531 let position_map = layout.position_map.clone();
5532 let editor = self.editor.clone();
5533 let hitbox = layout.hitbox.clone();
5534 let mut delta = ScrollDelta::default();
5535
5536 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5537 // accidentally turn off their scrolling.
5538 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5539
5540 move |event: &ScrollWheelEvent, phase, window, cx| {
5541 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5542 delta = delta.coalesce(event.delta);
5543 editor.update(cx, |editor, cx| {
5544 let position_map: &PositionMap = &position_map;
5545
5546 let line_height = position_map.line_height;
5547 let max_glyph_width = position_map.em_width;
5548 let (delta, axis) = match delta {
5549 gpui::ScrollDelta::Pixels(mut pixels) => {
5550 //Trackpad
5551 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5552 (pixels, axis)
5553 }
5554
5555 gpui::ScrollDelta::Lines(lines) => {
5556 //Not trackpad
5557 let pixels =
5558 point(lines.x * max_glyph_width, lines.y * line_height);
5559 (pixels, None)
5560 }
5561 };
5562
5563 let current_scroll_position = position_map.snapshot.scroll_position();
5564 let x = (current_scroll_position.x * max_glyph_width
5565 - (delta.x * scroll_sensitivity))
5566 / max_glyph_width;
5567 let y = (current_scroll_position.y * line_height
5568 - (delta.y * scroll_sensitivity))
5569 / line_height;
5570 let mut scroll_position =
5571 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5572 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5573 if forbid_vertical_scroll {
5574 scroll_position.y = current_scroll_position.y;
5575 }
5576
5577 if scroll_position != current_scroll_position {
5578 editor.scroll(scroll_position, axis, window, cx);
5579 cx.stop_propagation();
5580 } else if y < 0. {
5581 // Due to clamping, we may fail to detect cases of overscroll to the top;
5582 // We want the scroll manager to get an update in such cases and detect the change of direction
5583 // on the next frame.
5584 cx.notify();
5585 }
5586 });
5587 }
5588 }
5589 });
5590 }
5591
5592 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5593 self.paint_scroll_wheel_listener(layout, window, cx);
5594
5595 window.on_mouse_event({
5596 let position_map = layout.position_map.clone();
5597 let editor = self.editor.clone();
5598 let multi_buffer_range =
5599 layout
5600 .display_hunks
5601 .iter()
5602 .find_map(|(hunk, hunk_hitbox)| match hunk {
5603 DisplayDiffHunk::Folded { .. } => None,
5604 DisplayDiffHunk::Unfolded {
5605 multi_buffer_range, ..
5606 } => {
5607 if hunk_hitbox
5608 .as_ref()
5609 .map(|hitbox| hitbox.is_hovered(window))
5610 .unwrap_or(false)
5611 {
5612 Some(multi_buffer_range.clone())
5613 } else {
5614 None
5615 }
5616 }
5617 });
5618 let line_numbers = layout.line_numbers.clone();
5619
5620 move |event: &MouseDownEvent, phase, window, cx| {
5621 if phase == DispatchPhase::Bubble {
5622 match event.button {
5623 MouseButton::Left => editor.update(cx, |editor, cx| {
5624 let pending_mouse_down = editor
5625 .pending_mouse_down
5626 .get_or_insert_with(Default::default)
5627 .clone();
5628
5629 *pending_mouse_down.borrow_mut() = Some(event.clone());
5630
5631 Self::mouse_left_down(
5632 editor,
5633 event,
5634 multi_buffer_range.clone(),
5635 &position_map,
5636 line_numbers.as_ref(),
5637 window,
5638 cx,
5639 );
5640 }),
5641 MouseButton::Right => editor.update(cx, |editor, cx| {
5642 Self::mouse_right_down(editor, event, &position_map, window, cx);
5643 }),
5644 MouseButton::Middle => editor.update(cx, |editor, cx| {
5645 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5646 }),
5647 _ => {}
5648 };
5649 }
5650 }
5651 });
5652
5653 window.on_mouse_event({
5654 let editor = self.editor.clone();
5655 let position_map = layout.position_map.clone();
5656
5657 move |event: &MouseUpEvent, phase, window, cx| {
5658 if phase == DispatchPhase::Bubble {
5659 editor.update(cx, |editor, cx| {
5660 Self::mouse_up(editor, event, &position_map, window, cx)
5661 });
5662 }
5663 }
5664 });
5665
5666 window.on_mouse_event({
5667 let editor = self.editor.clone();
5668 let position_map = layout.position_map.clone();
5669 let mut captured_mouse_down = None;
5670
5671 move |event: &MouseUpEvent, phase, window, cx| match phase {
5672 // Clear the pending mouse down during the capture phase,
5673 // so that it happens even if another event handler stops
5674 // propagation.
5675 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5676 let pending_mouse_down = editor
5677 .pending_mouse_down
5678 .get_or_insert_with(Default::default)
5679 .clone();
5680
5681 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5682 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5683 captured_mouse_down = pending_mouse_down.take();
5684 window.refresh();
5685 }
5686 }),
5687 // Fire click handlers during the bubble phase.
5688 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5689 if let Some(mouse_down) = captured_mouse_down.take() {
5690 let event = ClickEvent {
5691 down: mouse_down,
5692 up: event.clone(),
5693 };
5694 Self::click(editor, &event, &position_map, window, cx);
5695 }
5696 }),
5697 }
5698 });
5699
5700 window.on_mouse_event({
5701 let position_map = layout.position_map.clone();
5702 let editor = self.editor.clone();
5703
5704 move |event: &MouseMoveEvent, phase, window, cx| {
5705 if phase == DispatchPhase::Bubble {
5706 editor.update(cx, |editor, cx| {
5707 if editor.hover_state.focused(window, cx) {
5708 return;
5709 }
5710 if event.pressed_button == Some(MouseButton::Left)
5711 || event.pressed_button == Some(MouseButton::Middle)
5712 {
5713 Self::mouse_dragged(editor, event, &position_map, window, cx)
5714 }
5715
5716 Self::mouse_moved(editor, event, &position_map, window, cx)
5717 });
5718 }
5719 }
5720 });
5721 }
5722
5723 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5724 bounds.top_right().x - self.style.scrollbar_width
5725 }
5726
5727 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5728 let style = &self.style;
5729 let font_size = style.text.font_size.to_pixels(window.rem_size());
5730 let layout = window
5731 .text_system()
5732 .shape_line(
5733 SharedString::from(" ".repeat(column)),
5734 font_size,
5735 &[TextRun {
5736 len: column,
5737 font: style.text.font(),
5738 color: Hsla::default(),
5739 background_color: None,
5740 underline: None,
5741 strikethrough: None,
5742 }],
5743 )
5744 .unwrap();
5745
5746 layout.width
5747 }
5748
5749 fn max_line_number_width(
5750 &self,
5751 snapshot: &EditorSnapshot,
5752 window: &mut Window,
5753 cx: &mut App,
5754 ) -> Pixels {
5755 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5756 self.column_pixels(digit_count, window, cx)
5757 }
5758
5759 fn shape_line_number(
5760 &self,
5761 text: SharedString,
5762 color: Hsla,
5763 window: &mut Window,
5764 ) -> anyhow::Result<ShapedLine> {
5765 let run = TextRun {
5766 len: text.len(),
5767 font: self.style.text.font(),
5768 color,
5769 background_color: None,
5770 underline: None,
5771 strikethrough: None,
5772 };
5773 window.text_system().shape_line(
5774 text,
5775 self.style.text.font_size.to_pixels(window.rem_size()),
5776 &[run],
5777 )
5778 }
5779}
5780
5781fn header_jump_data(
5782 snapshot: &EditorSnapshot,
5783 block_row_start: DisplayRow,
5784 height: u32,
5785 for_excerpt: &ExcerptInfo,
5786) -> JumpData {
5787 let range = &for_excerpt.range;
5788 let buffer = &for_excerpt.buffer;
5789 let jump_anchor = range
5790 .primary
5791 .as_ref()
5792 .map_or(range.context.start, |primary| primary.start);
5793
5794 let excerpt_start = range.context.start;
5795 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5796 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5797 0
5798 } else {
5799 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5800 jump_position.row.saturating_sub(excerpt_start_point.row)
5801 };
5802
5803 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5804 .saturating_sub(
5805 snapshot
5806 .scroll_anchor
5807 .scroll_position(&snapshot.display_snapshot)
5808 .y as u32,
5809 );
5810
5811 JumpData::MultiBufferPoint {
5812 excerpt_id: for_excerpt.id,
5813 anchor: jump_anchor,
5814 position: jump_position,
5815 line_offset_from_top,
5816 }
5817}
5818
5819pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5820
5821impl AcceptEditPredictionBinding {
5822 pub fn keystroke(&self) -> Option<&Keystroke> {
5823 if let Some(binding) = self.0.as_ref() {
5824 match &binding.keystrokes() {
5825 [keystroke] => Some(keystroke),
5826 _ => None,
5827 }
5828 } else {
5829 None
5830 }
5831 }
5832}
5833
5834struct AcceptEditPredictionsBindingValidator;
5835
5836inventory::submit! { KeyBindingValidatorRegistration(|| Box::new(AcceptEditPredictionsBindingValidator)) }
5837
5838impl KeyBindingValidator for AcceptEditPredictionsBindingValidator {
5839 fn action_type_id(&self) -> TypeId {
5840 TypeId::of::<AcceptEditPrediction>()
5841 }
5842
5843 fn validate(&self, binding: &gpui::KeyBinding) -> Result<(), MarkdownString> {
5844 use KeyBindingContextPredicate::*;
5845
5846 if binding.keystrokes().len() == 1 && binding.keystrokes()[0].modifiers.modified() {
5847 return Ok(());
5848 }
5849 let required_predicate =
5850 Not(Identifier(EDIT_PREDICTION_REQUIRES_MODIFIER_KEY_CONTEXT.into()).into());
5851 match binding.predicate() {
5852 Some(predicate) if required_predicate.is_superset(&predicate) => {
5853 return Ok(());
5854 }
5855 _ => {}
5856 }
5857 Err(MarkdownString(format!(
5858 "{} can only be bound to a single keystroke with modifiers, so \
5859 that holding down these modifiers can be used to preview \
5860 completions inline when the completions menu is open.\n\n\
5861 This restriction does not apply when the context requires {}, \
5862 since these bindings will not be used when the completions menu \
5863 is open.",
5864 MarkdownString::inline_code(AcceptEditPrediction.name()),
5865 MarkdownString::inline_code(&format!(
5866 "!{}",
5867 EDIT_PREDICTION_REQUIRES_MODIFIER_KEY_CONTEXT
5868 )),
5869 )))
5870 }
5871}
5872
5873#[allow(clippy::too_many_arguments)]
5874fn prepaint_gutter_button(
5875 button: IconButton,
5876 row: DisplayRow,
5877 line_height: Pixels,
5878 gutter_dimensions: &GutterDimensions,
5879 scroll_pixel_position: gpui::Point<Pixels>,
5880 gutter_hitbox: &Hitbox,
5881 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5882 window: &mut Window,
5883 cx: &mut App,
5884) -> AnyElement {
5885 let mut button = button.into_any_element();
5886 let available_space = size(
5887 AvailableSpace::MinContent,
5888 AvailableSpace::Definite(line_height),
5889 );
5890 let indicator_size = button.layout_as_root(available_space, window, cx);
5891
5892 let blame_width = gutter_dimensions.git_blame_entries_width;
5893 let gutter_width = rows_with_hunk_bounds
5894 .get(&row)
5895 .map(|bounds| bounds.size.width);
5896 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5897
5898 let mut x = left_offset;
5899 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5900 - indicator_size.width
5901 - left_offset;
5902 x += available_width / 2.;
5903
5904 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5905 y += (line_height - indicator_size.height) / 2.;
5906
5907 button.prepaint_as_root(
5908 gutter_hitbox.origin + point(x, y),
5909 available_space,
5910 window,
5911 cx,
5912 );
5913 button
5914}
5915
5916fn render_inline_blame_entry(
5917 blame: &gpui::Entity<GitBlame>,
5918 blame_entry: BlameEntry,
5919 style: &EditorStyle,
5920 workspace: Option<WeakEntity<Workspace>>,
5921 cx: &mut App,
5922) -> AnyElement {
5923 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5924
5925 let author = blame_entry.author.as_deref().unwrap_or_default();
5926 let summary_enabled = ProjectSettings::get_global(cx)
5927 .git
5928 .show_inline_commit_summary();
5929
5930 let text = match blame_entry.summary.as_ref() {
5931 Some(summary) if summary_enabled => {
5932 format!("{}, {} - {}", author, relative_timestamp, summary)
5933 }
5934 _ => format!("{}, {}", author, relative_timestamp),
5935 };
5936
5937 let details = blame.read(cx).details_for_entry(&blame_entry);
5938
5939 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5940
5941 h_flex()
5942 .id("inline-blame")
5943 .w_full()
5944 .font_family(style.text.font().family)
5945 .text_color(cx.theme().status().hint)
5946 .line_height(style.text.line_height)
5947 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5948 .child(text)
5949 .gap_2()
5950 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5951 .into_any()
5952}
5953
5954fn render_blame_entry(
5955 ix: usize,
5956 blame: &gpui::Entity<GitBlame>,
5957 blame_entry: BlameEntry,
5958 style: &EditorStyle,
5959 last_used_color: &mut Option<(PlayerColor, Oid)>,
5960 editor: Entity<Editor>,
5961 cx: &mut App,
5962) -> AnyElement {
5963 let mut sha_color = cx
5964 .theme()
5965 .players()
5966 .color_for_participant(blame_entry.sha.into());
5967 // If the last color we used is the same as the one we get for this line, but
5968 // the commit SHAs are different, then we try again to get a different color.
5969 match *last_used_color {
5970 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5971 let index: u32 = blame_entry.sha.into();
5972 sha_color = cx.theme().players().color_for_participant(index + 1);
5973 }
5974 _ => {}
5975 };
5976 last_used_color.replace((sha_color, blame_entry.sha));
5977
5978 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5979
5980 let short_commit_id = blame_entry.sha.display_short();
5981
5982 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5983 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5984
5985 let details = blame.read(cx).details_for_entry(&blame_entry);
5986
5987 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5988
5989 let tooltip =
5990 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
5991
5992 h_flex()
5993 .w_full()
5994 .justify_between()
5995 .font_family(style.text.font().family)
5996 .line_height(style.text.line_height)
5997 .id(("blame", ix))
5998 .text_color(cx.theme().status().hint)
5999 .pr_2()
6000 .gap_2()
6001 .child(
6002 h_flex()
6003 .items_center()
6004 .gap_2()
6005 .child(div().text_color(sha_color.cursor).child(short_commit_id))
6006 .child(name),
6007 )
6008 .child(relative_timestamp)
6009 .on_mouse_down(MouseButton::Right, {
6010 let blame_entry = blame_entry.clone();
6011 let details = details.clone();
6012 move |event, window, cx| {
6013 deploy_blame_entry_context_menu(
6014 &blame_entry,
6015 details.as_ref(),
6016 editor.clone(),
6017 event.position,
6018 window,
6019 cx,
6020 );
6021 }
6022 })
6023 .hover(|style| style.bg(cx.theme().colors().element_hover))
6024 .when_some(
6025 details.and_then(|details| details.permalink),
6026 |this, url| {
6027 let url = url.clone();
6028 this.cursor_pointer().on_click(move |_, _, cx| {
6029 cx.stop_propagation();
6030 cx.open_url(url.as_str())
6031 })
6032 },
6033 )
6034 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6035 .into_any()
6036}
6037
6038fn deploy_blame_entry_context_menu(
6039 blame_entry: &BlameEntry,
6040 details: Option<&CommitDetails>,
6041 editor: Entity<Editor>,
6042 position: gpui::Point<Pixels>,
6043 window: &mut Window,
6044 cx: &mut App,
6045) {
6046 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6047 let sha = format!("{}", blame_entry.sha);
6048 menu.on_blur_subscription(Subscription::new(|| {}))
6049 .entry("Copy commit SHA", None, move |_, cx| {
6050 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6051 })
6052 .when_some(
6053 details.and_then(|details| details.permalink.clone()),
6054 |this, url| {
6055 this.entry("Open permalink", None, move |_, cx| {
6056 cx.open_url(url.as_str())
6057 })
6058 },
6059 )
6060 });
6061
6062 editor.update(cx, move |editor, cx| {
6063 editor.mouse_context_menu = Some(MouseContextMenu::new(
6064 MenuPosition::PinnedToScreen(position),
6065 context_menu,
6066 window,
6067 cx,
6068 ));
6069 cx.notify();
6070 });
6071}
6072
6073#[derive(Debug)]
6074pub(crate) struct LineWithInvisibles {
6075 fragments: SmallVec<[LineFragment; 1]>,
6076 invisibles: Vec<Invisible>,
6077 len: usize,
6078 width: Pixels,
6079 font_size: Pixels,
6080}
6081
6082#[allow(clippy::large_enum_variant)]
6083enum LineFragment {
6084 Text(ShapedLine),
6085 Element {
6086 element: Option<AnyElement>,
6087 size: Size<Pixels>,
6088 len: usize,
6089 },
6090}
6091
6092impl fmt::Debug for LineFragment {
6093 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6094 match self {
6095 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6096 LineFragment::Element { size, len, .. } => f
6097 .debug_struct("Element")
6098 .field("size", size)
6099 .field("len", len)
6100 .finish(),
6101 }
6102 }
6103}
6104
6105impl LineWithInvisibles {
6106 #[allow(clippy::too_many_arguments)]
6107 fn from_chunks<'a>(
6108 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6109 editor_style: &EditorStyle,
6110 max_line_len: usize,
6111 max_line_count: usize,
6112 editor_mode: EditorMode,
6113 text_width: Pixels,
6114 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6115 window: &mut Window,
6116 cx: &mut App,
6117 ) -> Vec<Self> {
6118 let text_style = &editor_style.text;
6119 let mut layouts = Vec::with_capacity(max_line_count);
6120 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6121 let mut line = String::new();
6122 let mut invisibles = Vec::new();
6123 let mut width = Pixels::ZERO;
6124 let mut len = 0;
6125 let mut styles = Vec::new();
6126 let mut non_whitespace_added = false;
6127 let mut row = 0;
6128 let mut line_exceeded_max_len = false;
6129 let font_size = text_style.font_size.to_pixels(window.rem_size());
6130
6131 let ellipsis = SharedString::from("⋯");
6132
6133 for highlighted_chunk in chunks.chain([HighlightedChunk {
6134 text: "\n",
6135 style: None,
6136 is_tab: false,
6137 replacement: None,
6138 }]) {
6139 if let Some(replacement) = highlighted_chunk.replacement {
6140 if !line.is_empty() {
6141 let shaped_line = window
6142 .text_system()
6143 .shape_line(line.clone().into(), font_size, &styles)
6144 .unwrap();
6145 width += shaped_line.width;
6146 len += shaped_line.len;
6147 fragments.push(LineFragment::Text(shaped_line));
6148 line.clear();
6149 styles.clear();
6150 }
6151
6152 match replacement {
6153 ChunkReplacement::Renderer(renderer) => {
6154 let available_width = if renderer.constrain_width {
6155 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6156 ellipsis.clone()
6157 } else {
6158 SharedString::from(Arc::from(highlighted_chunk.text))
6159 };
6160 let shaped_line = window
6161 .text_system()
6162 .shape_line(
6163 chunk,
6164 font_size,
6165 &[text_style.to_run(highlighted_chunk.text.len())],
6166 )
6167 .unwrap();
6168 AvailableSpace::Definite(shaped_line.width)
6169 } else {
6170 AvailableSpace::MinContent
6171 };
6172
6173 let mut element = (renderer.render)(&mut ChunkRendererContext {
6174 context: cx,
6175 window,
6176 max_width: text_width,
6177 });
6178 let line_height = text_style.line_height_in_pixels(window.rem_size());
6179 let size = element.layout_as_root(
6180 size(available_width, AvailableSpace::Definite(line_height)),
6181 window,
6182 cx,
6183 );
6184
6185 width += size.width;
6186 len += highlighted_chunk.text.len();
6187 fragments.push(LineFragment::Element {
6188 element: Some(element),
6189 size,
6190 len: highlighted_chunk.text.len(),
6191 });
6192 }
6193 ChunkReplacement::Str(x) => {
6194 let text_style = if let Some(style) = highlighted_chunk.style {
6195 Cow::Owned(text_style.clone().highlight(style))
6196 } else {
6197 Cow::Borrowed(text_style)
6198 };
6199
6200 let run = TextRun {
6201 len: x.len(),
6202 font: text_style.font(),
6203 color: text_style.color,
6204 background_color: text_style.background_color,
6205 underline: text_style.underline,
6206 strikethrough: text_style.strikethrough,
6207 };
6208 let line_layout = window
6209 .text_system()
6210 .shape_line(x, font_size, &[run])
6211 .unwrap()
6212 .with_len(highlighted_chunk.text.len());
6213
6214 width += line_layout.width;
6215 len += highlighted_chunk.text.len();
6216 fragments.push(LineFragment::Text(line_layout))
6217 }
6218 }
6219 } else {
6220 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6221 if ix > 0 {
6222 let shaped_line = window
6223 .text_system()
6224 .shape_line(line.clone().into(), font_size, &styles)
6225 .unwrap();
6226 width += shaped_line.width;
6227 len += shaped_line.len;
6228 fragments.push(LineFragment::Text(shaped_line));
6229 layouts.push(Self {
6230 width: mem::take(&mut width),
6231 len: mem::take(&mut len),
6232 fragments: mem::take(&mut fragments),
6233 invisibles: std::mem::take(&mut invisibles),
6234 font_size,
6235 });
6236
6237 line.clear();
6238 styles.clear();
6239 row += 1;
6240 line_exceeded_max_len = false;
6241 non_whitespace_added = false;
6242 if row == max_line_count {
6243 return layouts;
6244 }
6245 }
6246
6247 if !line_chunk.is_empty() && !line_exceeded_max_len {
6248 let text_style = if let Some(style) = highlighted_chunk.style {
6249 Cow::Owned(text_style.clone().highlight(style))
6250 } else {
6251 Cow::Borrowed(text_style)
6252 };
6253
6254 if line.len() + line_chunk.len() > max_line_len {
6255 let mut chunk_len = max_line_len - line.len();
6256 while !line_chunk.is_char_boundary(chunk_len) {
6257 chunk_len -= 1;
6258 }
6259 line_chunk = &line_chunk[..chunk_len];
6260 line_exceeded_max_len = true;
6261 }
6262
6263 styles.push(TextRun {
6264 len: line_chunk.len(),
6265 font: text_style.font(),
6266 color: text_style.color,
6267 background_color: text_style.background_color,
6268 underline: text_style.underline,
6269 strikethrough: text_style.strikethrough,
6270 });
6271
6272 if editor_mode == EditorMode::Full {
6273 // Line wrap pads its contents with fake whitespaces,
6274 // avoid printing them
6275 let is_soft_wrapped = is_row_soft_wrapped(row);
6276 if highlighted_chunk.is_tab {
6277 if non_whitespace_added || !is_soft_wrapped {
6278 invisibles.push(Invisible::Tab {
6279 line_start_offset: line.len(),
6280 line_end_offset: line.len() + line_chunk.len(),
6281 });
6282 }
6283 } else {
6284 invisibles.extend(line_chunk.char_indices().filter_map(
6285 |(index, c)| {
6286 let is_whitespace = c.is_whitespace();
6287 non_whitespace_added |= !is_whitespace;
6288 if is_whitespace
6289 && (non_whitespace_added || !is_soft_wrapped)
6290 {
6291 Some(Invisible::Whitespace {
6292 line_offset: line.len() + index,
6293 })
6294 } else {
6295 None
6296 }
6297 },
6298 ))
6299 }
6300 }
6301
6302 line.push_str(line_chunk);
6303 }
6304 }
6305 }
6306 }
6307
6308 layouts
6309 }
6310
6311 #[allow(clippy::too_many_arguments)]
6312 fn prepaint(
6313 &mut self,
6314 line_height: Pixels,
6315 scroll_pixel_position: gpui::Point<Pixels>,
6316 row: DisplayRow,
6317 content_origin: gpui::Point<Pixels>,
6318 line_elements: &mut SmallVec<[AnyElement; 1]>,
6319 window: &mut Window,
6320 cx: &mut App,
6321 ) {
6322 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6323 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6324 for fragment in &mut self.fragments {
6325 match fragment {
6326 LineFragment::Text(line) => {
6327 fragment_origin.x += line.width;
6328 }
6329 LineFragment::Element { element, size, .. } => {
6330 let mut element = element
6331 .take()
6332 .expect("you can't prepaint LineWithInvisibles twice");
6333
6334 // Center the element vertically within the line.
6335 let mut element_origin = fragment_origin;
6336 element_origin.y += (line_height - size.height) / 2.;
6337 element.prepaint_at(element_origin, window, cx);
6338 line_elements.push(element);
6339
6340 fragment_origin.x += size.width;
6341 }
6342 }
6343 }
6344 }
6345
6346 #[allow(clippy::too_many_arguments)]
6347 fn draw(
6348 &self,
6349 layout: &EditorLayout,
6350 row: DisplayRow,
6351 content_origin: gpui::Point<Pixels>,
6352 whitespace_setting: ShowWhitespaceSetting,
6353 selection_ranges: &[Range<DisplayPoint>],
6354 window: &mut Window,
6355 cx: &mut App,
6356 ) {
6357 let line_height = layout.position_map.line_height;
6358 let line_y = line_height
6359 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6360
6361 let mut fragment_origin =
6362 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6363
6364 for fragment in &self.fragments {
6365 match fragment {
6366 LineFragment::Text(line) => {
6367 line.paint(fragment_origin, line_height, window, cx)
6368 .log_err();
6369 fragment_origin.x += line.width;
6370 }
6371 LineFragment::Element { size, .. } => {
6372 fragment_origin.x += size.width;
6373 }
6374 }
6375 }
6376
6377 self.draw_invisibles(
6378 selection_ranges,
6379 layout,
6380 content_origin,
6381 line_y,
6382 row,
6383 line_height,
6384 whitespace_setting,
6385 window,
6386 cx,
6387 );
6388 }
6389
6390 #[allow(clippy::too_many_arguments)]
6391 fn draw_invisibles(
6392 &self,
6393 selection_ranges: &[Range<DisplayPoint>],
6394 layout: &EditorLayout,
6395 content_origin: gpui::Point<Pixels>,
6396 line_y: Pixels,
6397 row: DisplayRow,
6398 line_height: Pixels,
6399 whitespace_setting: ShowWhitespaceSetting,
6400 window: &mut Window,
6401 cx: &mut App,
6402 ) {
6403 let extract_whitespace_info = |invisible: &Invisible| {
6404 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6405 Invisible::Tab {
6406 line_start_offset,
6407 line_end_offset,
6408 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6409 Invisible::Whitespace { line_offset } => {
6410 (*line_offset, line_offset + 1, &layout.space_invisible)
6411 }
6412 };
6413
6414 let x_offset = self.x_for_index(token_offset);
6415 let invisible_offset =
6416 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6417 let origin = content_origin
6418 + gpui::point(
6419 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6420 line_y,
6421 );
6422
6423 (
6424 [token_offset, token_end_offset],
6425 Box::new(move |window: &mut Window, cx: &mut App| {
6426 invisible_symbol
6427 .paint(origin, line_height, window, cx)
6428 .log_err();
6429 }),
6430 )
6431 };
6432
6433 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6434 match whitespace_setting {
6435 ShowWhitespaceSetting::None => (),
6436 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6437 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6438 let invisible_point = DisplayPoint::new(row, start as u32);
6439 if !selection_ranges
6440 .iter()
6441 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6442 {
6443 return;
6444 }
6445
6446 paint(window, cx);
6447 }),
6448
6449 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6450 // - It is a tab
6451 // - It is adjacent to an edge (start or end)
6452 // - It is adjacent to a whitespace (left or right)
6453 ShowWhitespaceSetting::Boundary => {
6454 // 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
6455 // the above cases.
6456 // Note: We zip in the original `invisibles` to check for tab equality
6457 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6458 for (([start, end], paint), invisible) in
6459 invisible_iter.zip_eq(self.invisibles.iter())
6460 {
6461 let should_render = match (&last_seen, invisible) {
6462 (_, Invisible::Tab { .. }) => true,
6463 (Some((_, last_end, _)), _) => *last_end == start,
6464 _ => false,
6465 };
6466
6467 if should_render || start == 0 || end == self.len {
6468 paint(window, cx);
6469
6470 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6471 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6472 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6473 // Note that we need to make sure that the last one is actually adjacent
6474 if !should_render_last && last_end == start {
6475 paint_last(window, cx);
6476 }
6477 }
6478 }
6479
6480 // Manually render anything within a selection
6481 let invisible_point = DisplayPoint::new(row, start as u32);
6482 if selection_ranges.iter().any(|region| {
6483 region.start <= invisible_point && invisible_point < region.end
6484 }) {
6485 paint(window, cx);
6486 }
6487
6488 last_seen = Some((should_render, end, paint));
6489 }
6490 }
6491 }
6492 }
6493
6494 pub fn x_for_index(&self, index: usize) -> Pixels {
6495 let mut fragment_start_x = Pixels::ZERO;
6496 let mut fragment_start_index = 0;
6497
6498 for fragment in &self.fragments {
6499 match fragment {
6500 LineFragment::Text(shaped_line) => {
6501 let fragment_end_index = fragment_start_index + shaped_line.len;
6502 if index < fragment_end_index {
6503 return fragment_start_x
6504 + shaped_line.x_for_index(index - fragment_start_index);
6505 }
6506 fragment_start_x += shaped_line.width;
6507 fragment_start_index = fragment_end_index;
6508 }
6509 LineFragment::Element { len, size, .. } => {
6510 let fragment_end_index = fragment_start_index + len;
6511 if index < fragment_end_index {
6512 return fragment_start_x;
6513 }
6514 fragment_start_x += size.width;
6515 fragment_start_index = fragment_end_index;
6516 }
6517 }
6518 }
6519
6520 fragment_start_x
6521 }
6522
6523 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6524 let mut fragment_start_x = Pixels::ZERO;
6525 let mut fragment_start_index = 0;
6526
6527 for fragment in &self.fragments {
6528 match fragment {
6529 LineFragment::Text(shaped_line) => {
6530 let fragment_end_x = fragment_start_x + shaped_line.width;
6531 if x < fragment_end_x {
6532 return Some(
6533 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6534 );
6535 }
6536 fragment_start_x = fragment_end_x;
6537 fragment_start_index += shaped_line.len;
6538 }
6539 LineFragment::Element { len, size, .. } => {
6540 let fragment_end_x = fragment_start_x + size.width;
6541 if x < fragment_end_x {
6542 return Some(fragment_start_index);
6543 }
6544 fragment_start_index += len;
6545 fragment_start_x = fragment_end_x;
6546 }
6547 }
6548 }
6549
6550 None
6551 }
6552
6553 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6554 let mut fragment_start_index = 0;
6555
6556 for fragment in &self.fragments {
6557 match fragment {
6558 LineFragment::Text(shaped_line) => {
6559 let fragment_end_index = fragment_start_index + shaped_line.len;
6560 if index < fragment_end_index {
6561 return shaped_line.font_id_for_index(index - fragment_start_index);
6562 }
6563 fragment_start_index = fragment_end_index;
6564 }
6565 LineFragment::Element { len, .. } => {
6566 let fragment_end_index = fragment_start_index + len;
6567 if index < fragment_end_index {
6568 return None;
6569 }
6570 fragment_start_index = fragment_end_index;
6571 }
6572 }
6573 }
6574
6575 None
6576 }
6577}
6578
6579#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6580enum Invisible {
6581 /// A tab character
6582 ///
6583 /// A tab character is internally represented by spaces (configured by the user's tab width)
6584 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6585 /// adjacency checks.
6586 Tab {
6587 line_start_offset: usize,
6588 line_end_offset: usize,
6589 },
6590 Whitespace {
6591 line_offset: usize,
6592 },
6593}
6594
6595impl EditorElement {
6596 /// Returns the rem size to use when rendering the [`EditorElement`].
6597 ///
6598 /// This allows UI elements to scale based on the `buffer_font_size`.
6599 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6600 match self.editor.read(cx).mode {
6601 EditorMode::Full => {
6602 let buffer_font_size = self.style.text.font_size;
6603 match buffer_font_size {
6604 AbsoluteLength::Pixels(pixels) => {
6605 let rem_size_scale = {
6606 // Our default UI font size is 14px on a 16px base scale.
6607 // This means the default UI font size is 0.875rems.
6608 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6609
6610 // We then determine the delta between a single rem and the default font
6611 // size scale.
6612 let default_font_size_delta = 1. - default_font_size_scale;
6613
6614 // Finally, we add this delta to 1rem to get the scale factor that
6615 // should be used to scale up the UI.
6616 1. + default_font_size_delta
6617 };
6618
6619 Some(pixels * rem_size_scale)
6620 }
6621 AbsoluteLength::Rems(rems) => {
6622 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6623 }
6624 }
6625 }
6626 // We currently use single-line and auto-height editors in UI contexts,
6627 // so we don't want to scale everything with the buffer font size, as it
6628 // ends up looking off.
6629 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6630 }
6631 }
6632}
6633
6634impl Element for EditorElement {
6635 type RequestLayoutState = ();
6636 type PrepaintState = EditorLayout;
6637
6638 fn id(&self) -> Option<ElementId> {
6639 None
6640 }
6641
6642 fn request_layout(
6643 &mut self,
6644 _: Option<&GlobalElementId>,
6645 window: &mut Window,
6646 cx: &mut App,
6647 ) -> (gpui::LayoutId, ()) {
6648 let rem_size = self.rem_size(cx);
6649 window.with_rem_size(rem_size, |window| {
6650 self.editor.update(cx, |editor, cx| {
6651 editor.set_style(self.style.clone(), window, cx);
6652
6653 let layout_id = match editor.mode {
6654 EditorMode::SingleLine { auto_width } => {
6655 let rem_size = window.rem_size();
6656
6657 let height = self.style.text.line_height_in_pixels(rem_size);
6658 if auto_width {
6659 let editor_handle = cx.entity().clone();
6660 let style = self.style.clone();
6661 window.request_measured_layout(
6662 Style::default(),
6663 move |_, _, window, cx| {
6664 let editor_snapshot = editor_handle
6665 .update(cx, |editor, cx| editor.snapshot(window, cx));
6666 let line = Self::layout_lines(
6667 DisplayRow(0)..DisplayRow(1),
6668 &editor_snapshot,
6669 &style,
6670 px(f32::MAX),
6671 |_| false, // Single lines never soft wrap
6672 window,
6673 cx,
6674 )
6675 .pop()
6676 .unwrap();
6677
6678 let font_id =
6679 window.text_system().resolve_font(&style.text.font());
6680 let font_size =
6681 style.text.font_size.to_pixels(window.rem_size());
6682 let em_width =
6683 window.text_system().em_width(font_id, font_size).unwrap();
6684
6685 size(line.width + em_width, height)
6686 },
6687 )
6688 } else {
6689 let mut style = Style::default();
6690 style.size.height = height.into();
6691 style.size.width = relative(1.).into();
6692 window.request_layout(style, None, cx)
6693 }
6694 }
6695 EditorMode::AutoHeight { max_lines } => {
6696 let editor_handle = cx.entity().clone();
6697 let max_line_number_width =
6698 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6699 window.request_measured_layout(
6700 Style::default(),
6701 move |known_dimensions, available_space, window, cx| {
6702 editor_handle
6703 .update(cx, |editor, cx| {
6704 compute_auto_height_layout(
6705 editor,
6706 max_lines,
6707 max_line_number_width,
6708 known_dimensions,
6709 available_space.width,
6710 window,
6711 cx,
6712 )
6713 })
6714 .unwrap_or_default()
6715 },
6716 )
6717 }
6718 EditorMode::Full => {
6719 let mut style = Style::default();
6720 style.size.width = relative(1.).into();
6721 style.size.height = relative(1.).into();
6722 window.request_layout(style, None, cx)
6723 }
6724 };
6725
6726 (layout_id, ())
6727 })
6728 })
6729 }
6730
6731 fn prepaint(
6732 &mut self,
6733 _: Option<&GlobalElementId>,
6734 bounds: Bounds<Pixels>,
6735 _: &mut Self::RequestLayoutState,
6736 window: &mut Window,
6737 cx: &mut App,
6738 ) -> Self::PrepaintState {
6739 let text_style = TextStyleRefinement {
6740 font_size: Some(self.style.text.font_size),
6741 line_height: Some(self.style.text.line_height),
6742 ..Default::default()
6743 };
6744 let focus_handle = self.editor.focus_handle(cx);
6745 window.set_view_id(self.editor.entity_id());
6746 window.set_focus_handle(&focus_handle, cx);
6747
6748 let rem_size = self.rem_size(cx);
6749 window.with_rem_size(rem_size, |window| {
6750 window.with_text_style(Some(text_style), |window| {
6751 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6752 let mut snapshot = self
6753 .editor
6754 .update(cx, |editor, cx| editor.snapshot(window, cx));
6755 let style = self.style.clone();
6756
6757 let font_id = window.text_system().resolve_font(&style.text.font());
6758 let font_size = style.text.font_size.to_pixels(window.rem_size());
6759 let line_height = style.text.line_height_in_pixels(window.rem_size());
6760 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6761 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6762
6763 let letter_size = size(em_width, line_height);
6764
6765 let gutter_dimensions = snapshot
6766 .gutter_dimensions(
6767 font_id,
6768 font_size,
6769 self.max_line_number_width(&snapshot, window, cx),
6770 cx,
6771 )
6772 .unwrap_or_default();
6773 let text_width = bounds.size.width - gutter_dimensions.width;
6774
6775 let editor_width = text_width - gutter_dimensions.margin - em_width;
6776
6777 snapshot = self.editor.update(cx, |editor, cx| {
6778 editor.last_bounds = Some(bounds);
6779 editor.gutter_dimensions = gutter_dimensions;
6780 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6781
6782 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6783 snapshot
6784 } else {
6785 let wrap_width = match editor.soft_wrap_mode(cx) {
6786 SoftWrap::GitDiff => None,
6787 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6788 SoftWrap::EditorWidth => Some(editor_width),
6789 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6790 SoftWrap::Bounded(column) => {
6791 Some(editor_width.min(column as f32 * em_advance))
6792 }
6793 };
6794
6795 if editor.set_wrap_width(wrap_width, cx) {
6796 editor.snapshot(window, cx)
6797 } else {
6798 snapshot
6799 }
6800 }
6801 });
6802
6803 let wrap_guides = self
6804 .editor
6805 .read(cx)
6806 .wrap_guides(cx)
6807 .iter()
6808 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6809 .collect::<SmallVec<[_; 2]>>();
6810
6811 let hitbox = window.insert_hitbox(bounds, false);
6812 let gutter_hitbox =
6813 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6814 let text_hitbox = window.insert_hitbox(
6815 Bounds {
6816 origin: gutter_hitbox.top_right(),
6817 size: size(text_width, bounds.size.height),
6818 },
6819 false,
6820 );
6821 // Offset the content_bounds from the text_bounds by the gutter margin (which
6822 // is roughly half a character wide) to make hit testing work more like how we want.
6823 let content_origin =
6824 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6825
6826 let scrollbar_bounds =
6827 Bounds::from_corners(content_origin, bounds.bottom_right());
6828
6829 let height_in_lines = scrollbar_bounds.size.height / line_height;
6830
6831 // NOTE: The max row number in the current file, minus one
6832 let max_row = snapshot.max_point().row().as_f32();
6833
6834 // NOTE: The max scroll position for the top of the window
6835 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6836 (max_row - height_in_lines + 1.).max(0.)
6837 } else {
6838 let settings = EditorSettings::get_global(cx);
6839 match settings.scroll_beyond_last_line {
6840 ScrollBeyondLastLine::OnePage => max_row,
6841 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6842 ScrollBeyondLastLine::VerticalScrollMargin => {
6843 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6844 .max(0.)
6845 }
6846 }
6847 };
6848
6849 // TODO: Autoscrolling for both axes
6850 let mut autoscroll_request = None;
6851 let mut autoscroll_containing_element = false;
6852 let mut autoscroll_horizontally = false;
6853 self.editor.update(cx, |editor, cx| {
6854 autoscroll_request = editor.autoscroll_request();
6855 autoscroll_containing_element =
6856 autoscroll_request.is_some() || editor.has_pending_selection();
6857 // TODO: Is this horizontal or vertical?!
6858 autoscroll_horizontally = editor.autoscroll_vertically(
6859 bounds,
6860 line_height,
6861 max_scroll_top,
6862 window,
6863 cx,
6864 );
6865 snapshot = editor.snapshot(window, cx);
6866 });
6867
6868 let mut scroll_position = snapshot.scroll_position();
6869 // The scroll position is a fractional point, the whole number of which represents
6870 // the top of the window in terms of display rows.
6871 let start_row = DisplayRow(scroll_position.y as u32);
6872 let max_row = snapshot.max_point().row();
6873 let end_row = cmp::min(
6874 (scroll_position.y + height_in_lines).ceil() as u32,
6875 max_row.next_row().0,
6876 );
6877 let end_row = DisplayRow(end_row);
6878
6879 let row_infos = snapshot
6880 .row_infos(start_row)
6881 .take((start_row..end_row).len())
6882 .collect::<Vec<RowInfo>>();
6883 let is_row_soft_wrapped = |row: usize| {
6884 row_infos
6885 .get(row)
6886 .map_or(true, |info| info.buffer_row.is_none())
6887 };
6888
6889 let start_anchor = if start_row == Default::default() {
6890 Anchor::min()
6891 } else {
6892 snapshot.buffer_snapshot.anchor_before(
6893 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6894 )
6895 };
6896 let end_anchor = if end_row > max_row {
6897 Anchor::max()
6898 } else {
6899 snapshot.buffer_snapshot.anchor_before(
6900 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6901 )
6902 };
6903
6904 let (mut highlighted_rows, distinguish_unstaged_hunks) =
6905 self.editor.update(cx, |editor, cx| {
6906 (
6907 editor.highlighted_display_rows(window, cx),
6908 editor.distinguish_unstaged_diff_hunks,
6909 )
6910 });
6911
6912 for (ix, row_info) in row_infos.iter().enumerate() {
6913 let background = match row_info.diff_status {
6914 Some(DiffHunkStatus::Added(secondary_status)) => {
6915 let color = style.status.created_background;
6916 match secondary_status {
6917 DiffHunkSecondaryStatus::HasSecondaryHunk
6918 | DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk
6919 if distinguish_unstaged_hunks =>
6920 {
6921 pattern_slash(color, line_height.0 / 4.0)
6922 }
6923 _ => color.into(),
6924 }
6925 }
6926 Some(DiffHunkStatus::Removed(secondary_status)) => {
6927 let color = style.status.deleted_background;
6928 match secondary_status {
6929 DiffHunkSecondaryStatus::HasSecondaryHunk
6930 | DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk
6931 if distinguish_unstaged_hunks =>
6932 {
6933 pattern_slash(color, line_height.0 / 4.0)
6934 }
6935 _ => color.into(),
6936 }
6937 }
6938 _ => continue,
6939 };
6940
6941 highlighted_rows
6942 .entry(start_row + DisplayRow(ix as u32))
6943 .or_insert(background);
6944 }
6945
6946 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6947 start_anchor..end_anchor,
6948 &snapshot.display_snapshot,
6949 cx.theme().colors(),
6950 );
6951 let highlighted_gutter_ranges =
6952 self.editor.read(cx).gutter_highlights_in_range(
6953 start_anchor..end_anchor,
6954 &snapshot.display_snapshot,
6955 cx,
6956 );
6957
6958 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6959 start_anchor..end_anchor,
6960 &snapshot.display_snapshot,
6961 cx,
6962 );
6963
6964 let (local_selections, selected_buffer_ids): (
6965 Vec<Selection<Point>>,
6966 Vec<BufferId>,
6967 ) = self.editor.update(cx, |editor, cx| {
6968 let all_selections = editor.selections.all::<Point>(cx);
6969 let selected_buffer_ids = if editor.is_singleton(cx) {
6970 Vec::new()
6971 } else {
6972 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6973
6974 for selection in all_selections {
6975 for buffer_id in snapshot
6976 .buffer_snapshot
6977 .buffer_ids_for_range(selection.range())
6978 {
6979 if selected_buffer_ids.last() != Some(&buffer_id) {
6980 selected_buffer_ids.push(buffer_id);
6981 }
6982 }
6983 }
6984
6985 selected_buffer_ids
6986 };
6987
6988 let mut selections = editor
6989 .selections
6990 .disjoint_in_range(start_anchor..end_anchor, cx);
6991 selections.extend(editor.selections.pending(cx));
6992
6993 (selections, selected_buffer_ids)
6994 });
6995
6996 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6997 start_anchor,
6998 end_anchor,
6999 &local_selections,
7000 &snapshot,
7001 start_row,
7002 end_row,
7003 window,
7004 cx,
7005 );
7006
7007 let line_numbers = self.layout_line_numbers(
7008 Some(&gutter_hitbox),
7009 gutter_dimensions,
7010 line_height,
7011 scroll_position,
7012 start_row..end_row,
7013 &row_infos,
7014 newest_selection_head,
7015 &snapshot,
7016 window,
7017 cx,
7018 );
7019
7020 let mut crease_toggles =
7021 window.with_element_namespace("crease_toggles", |window| {
7022 self.layout_crease_toggles(
7023 start_row..end_row,
7024 &row_infos,
7025 &active_rows,
7026 &snapshot,
7027 window,
7028 cx,
7029 )
7030 });
7031 let crease_trailers =
7032 window.with_element_namespace("crease_trailers", |window| {
7033 self.layout_crease_trailers(
7034 row_infos.iter().copied(),
7035 &snapshot,
7036 window,
7037 cx,
7038 )
7039 });
7040
7041 let display_hunks = self.layout_gutter_diff_hunks(
7042 line_height,
7043 &gutter_hitbox,
7044 start_row..end_row,
7045 &snapshot,
7046 window,
7047 cx,
7048 );
7049
7050 let mut line_layouts = Self::layout_lines(
7051 start_row..end_row,
7052 &snapshot,
7053 &self.style,
7054 editor_width,
7055 is_row_soft_wrapped,
7056 window,
7057 cx,
7058 );
7059
7060 let longest_line_blame_width = self
7061 .editor
7062 .update(cx, |editor, cx| {
7063 if !editor.show_git_blame_inline {
7064 return None;
7065 }
7066 let blame = editor.blame.as_ref()?;
7067 let blame_entry = blame
7068 .update(cx, |blame, cx| {
7069 let row_infos =
7070 snapshot.row_infos(snapshot.longest_row()).next()?;
7071 blame.blame_for_rows(&[row_infos], cx).next()
7072 })
7073 .flatten()?;
7074 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7075 let mut element = render_inline_blame_entry(
7076 blame,
7077 blame_entry,
7078 &style,
7079 workspace,
7080 cx,
7081 );
7082 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7083 Some(
7084 element
7085 .layout_as_root(AvailableSpace::min_size(), window, cx)
7086 .width
7087 + inline_blame_padding,
7088 )
7089 })
7090 .unwrap_or(Pixels::ZERO);
7091
7092 let longest_line_width = layout_line(
7093 snapshot.longest_row(),
7094 &snapshot,
7095 &style,
7096 editor_width,
7097 is_row_soft_wrapped,
7098 window,
7099 cx,
7100 )
7101 .width;
7102
7103 let scrollbar_range_data = ScrollbarRangeData::new(
7104 scrollbar_bounds,
7105 letter_size,
7106 &snapshot,
7107 longest_line_width,
7108 longest_line_blame_width,
7109 &style,
7110 cx,
7111 );
7112
7113 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7114 let mut scroll_width = scroll_range_bounds.size.width;
7115
7116 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7117 snapshot.sticky_header_excerpt(start_row)
7118 } else {
7119 None
7120 };
7121 let sticky_header_excerpt_id =
7122 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7123
7124 let blocks = window.with_element_namespace("blocks", |window| {
7125 self.render_blocks(
7126 start_row..end_row,
7127 &snapshot,
7128 &hitbox,
7129 &text_hitbox,
7130 editor_width,
7131 &mut scroll_width,
7132 &gutter_dimensions,
7133 em_width,
7134 gutter_dimensions.full_width(),
7135 line_height,
7136 &line_layouts,
7137 &local_selections,
7138 &selected_buffer_ids,
7139 is_row_soft_wrapped,
7140 sticky_header_excerpt_id,
7141 window,
7142 cx,
7143 )
7144 });
7145 let mut blocks = match blocks {
7146 Ok(blocks) => blocks,
7147 Err(resized_blocks) => {
7148 self.editor.update(cx, |editor, cx| {
7149 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7150 });
7151 return self.prepaint(None, bounds, &mut (), window, cx);
7152 }
7153 };
7154
7155 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7156 window.with_element_namespace("blocks", |window| {
7157 self.layout_sticky_buffer_header(
7158 sticky_header_excerpt,
7159 scroll_position.y,
7160 line_height,
7161 &snapshot,
7162 &hitbox,
7163 &selected_buffer_ids,
7164 window,
7165 cx,
7166 )
7167 })
7168 });
7169
7170 let start_buffer_row =
7171 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7172 let end_buffer_row =
7173 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7174
7175 let scroll_max = point(
7176 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7177 max_row.as_f32(),
7178 );
7179
7180 self.editor.update(cx, |editor, cx| {
7181 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7182
7183 let autoscrolled = if autoscroll_horizontally {
7184 editor.autoscroll_horizontally(
7185 start_row,
7186 editor_width - (letter_size.width / 2.0),
7187 scroll_width,
7188 em_width,
7189 &line_layouts,
7190 cx,
7191 )
7192 } else {
7193 false
7194 };
7195
7196 if clamped || autoscrolled {
7197 snapshot = editor.snapshot(window, cx);
7198 scroll_position = snapshot.scroll_position();
7199 }
7200 });
7201
7202 let scroll_pixel_position = point(
7203 scroll_position.x * em_width,
7204 scroll_position.y * line_height,
7205 );
7206
7207 let indent_guides = self.layout_indent_guides(
7208 content_origin,
7209 text_hitbox.origin,
7210 start_buffer_row..end_buffer_row,
7211 scroll_pixel_position,
7212 line_height,
7213 &snapshot,
7214 window,
7215 cx,
7216 );
7217
7218 let crease_trailers =
7219 window.with_element_namespace("crease_trailers", |window| {
7220 self.prepaint_crease_trailers(
7221 crease_trailers,
7222 &line_layouts,
7223 line_height,
7224 content_origin,
7225 scroll_pixel_position,
7226 em_width,
7227 window,
7228 cx,
7229 )
7230 });
7231
7232 let mut inline_blame = None;
7233 if let Some(newest_selection_head) = newest_selection_head {
7234 let display_row = newest_selection_head.row();
7235 if (start_row..end_row).contains(&display_row) {
7236 let line_ix = display_row.minus(start_row) as usize;
7237 let row_info = &row_infos[line_ix];
7238 let line_layout = &line_layouts[line_ix];
7239 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7240 inline_blame = self.layout_inline_blame(
7241 display_row,
7242 row_info,
7243 line_layout,
7244 crease_trailer_layout,
7245 em_width,
7246 content_origin,
7247 scroll_pixel_position,
7248 line_height,
7249 window,
7250 cx,
7251 );
7252 }
7253 }
7254
7255 let blamed_display_rows = self.layout_blame_entries(
7256 &row_infos,
7257 em_width,
7258 scroll_position,
7259 line_height,
7260 &gutter_hitbox,
7261 gutter_dimensions.git_blame_entries_width,
7262 window,
7263 cx,
7264 );
7265
7266 let scroll_max = point(
7267 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7268 max_scroll_top,
7269 );
7270
7271 self.editor.update(cx, |editor, cx| {
7272 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7273
7274 let autoscrolled = if autoscroll_horizontally {
7275 editor.autoscroll_horizontally(
7276 start_row,
7277 editor_width - (letter_size.width / 2.0),
7278 scroll_width,
7279 em_width,
7280 &line_layouts,
7281 cx,
7282 )
7283 } else {
7284 false
7285 };
7286
7287 if clamped || autoscrolled {
7288 snapshot = editor.snapshot(window, cx);
7289 scroll_position = snapshot.scroll_position();
7290 }
7291 });
7292
7293 let line_elements = self.prepaint_lines(
7294 start_row,
7295 &mut line_layouts,
7296 line_height,
7297 scroll_pixel_position,
7298 content_origin,
7299 window,
7300 cx,
7301 );
7302
7303 let mut block_start_rows = HashSet::default();
7304
7305 window.with_element_namespace("blocks", |window| {
7306 self.layout_blocks(
7307 &mut blocks,
7308 &mut block_start_rows,
7309 &hitbox,
7310 line_height,
7311 scroll_pixel_position,
7312 window,
7313 cx,
7314 );
7315 });
7316
7317 let cursors = self.collect_cursors(&snapshot, cx);
7318 let visible_row_range = start_row..end_row;
7319 let non_visible_cursors = cursors
7320 .iter()
7321 .any(|c| !visible_row_range.contains(&c.0.row()));
7322
7323 let visible_cursors = self.layout_visible_cursors(
7324 &snapshot,
7325 &selections,
7326 &block_start_rows,
7327 start_row..end_row,
7328 &line_layouts,
7329 &text_hitbox,
7330 content_origin,
7331 scroll_position,
7332 scroll_pixel_position,
7333 line_height,
7334 em_width,
7335 em_advance,
7336 autoscroll_containing_element,
7337 window,
7338 cx,
7339 );
7340
7341 let scrollbars_layout = self.layout_scrollbars(
7342 &snapshot,
7343 scrollbar_range_data,
7344 scroll_position,
7345 non_visible_cursors,
7346 window,
7347 cx,
7348 );
7349
7350 let gutter_settings = EditorSettings::get_global(cx).gutter;
7351
7352 let rows_with_hunk_bounds = display_hunks
7353 .iter()
7354 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7355 .fold(
7356 HashMap::default(),
7357 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7358 match hunk {
7359 DisplayDiffHunk::Folded { display_row } => {
7360 rows_with_hunk_bounds.insert(*display_row, bounds);
7361 }
7362 DisplayDiffHunk::Unfolded {
7363 display_row_range, ..
7364 } => {
7365 for display_row in display_row_range.iter_rows() {
7366 rows_with_hunk_bounds.insert(display_row, bounds);
7367 }
7368 }
7369 }
7370 rows_with_hunk_bounds
7371 },
7372 );
7373 let mut code_actions_indicator = None;
7374 if let Some(newest_selection_head) = newest_selection_head {
7375 let newest_selection_point =
7376 newest_selection_head.to_point(&snapshot.display_snapshot);
7377
7378 if (start_row..end_row).contains(&newest_selection_head.row()) {
7379 self.layout_cursor_popovers(
7380 line_height,
7381 &text_hitbox,
7382 content_origin,
7383 start_row,
7384 scroll_pixel_position,
7385 &line_layouts,
7386 newest_selection_head,
7387 newest_selection_point,
7388 &style,
7389 window,
7390 cx,
7391 );
7392
7393 let show_code_actions = snapshot
7394 .show_code_actions
7395 .unwrap_or(gutter_settings.code_actions);
7396 if show_code_actions {
7397 let newest_selection_point =
7398 newest_selection_head.to_point(&snapshot.display_snapshot);
7399 if !snapshot
7400 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7401 {
7402 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7403 MultiBufferRow(newest_selection_point.row),
7404 );
7405 if let Some((buffer, range)) = buffer {
7406 let buffer_id = buffer.remote_id();
7407 let row = range.start.row;
7408 let has_test_indicator = self
7409 .editor
7410 .read(cx)
7411 .tasks
7412 .contains_key(&(buffer_id, row));
7413
7414 if !has_test_indicator {
7415 code_actions_indicator = self
7416 .layout_code_actions_indicator(
7417 line_height,
7418 newest_selection_head,
7419 scroll_pixel_position,
7420 &gutter_dimensions,
7421 &gutter_hitbox,
7422 &rows_with_hunk_bounds,
7423 window,
7424 cx,
7425 );
7426 }
7427 }
7428 }
7429 }
7430 }
7431 }
7432
7433 self.layout_gutter_menu(
7434 line_height,
7435 &text_hitbox,
7436 content_origin,
7437 scroll_pixel_position,
7438 gutter_dimensions.width - gutter_dimensions.left_padding,
7439 window,
7440 cx,
7441 );
7442
7443 let test_indicators = if gutter_settings.runnables {
7444 self.layout_run_indicators(
7445 line_height,
7446 start_row..end_row,
7447 scroll_pixel_position,
7448 &gutter_dimensions,
7449 &gutter_hitbox,
7450 &rows_with_hunk_bounds,
7451 &snapshot,
7452 window,
7453 cx,
7454 )
7455 } else {
7456 Vec::new()
7457 };
7458
7459 self.layout_signature_help(
7460 &hitbox,
7461 content_origin,
7462 scroll_pixel_position,
7463 newest_selection_head,
7464 start_row,
7465 &line_layouts,
7466 line_height,
7467 em_width,
7468 window,
7469 cx,
7470 );
7471
7472 if !cx.has_active_drag() {
7473 self.layout_hover_popovers(
7474 &snapshot,
7475 &hitbox,
7476 &text_hitbox,
7477 start_row..end_row,
7478 content_origin,
7479 scroll_pixel_position,
7480 &line_layouts,
7481 line_height,
7482 em_width,
7483 window,
7484 cx,
7485 );
7486 }
7487
7488 let inline_completion_popover = self.layout_edit_prediction_popover(
7489 &text_hitbox.bounds,
7490 content_origin,
7491 &snapshot,
7492 start_row..end_row,
7493 scroll_position.y,
7494 scroll_position.y + height_in_lines,
7495 &line_layouts,
7496 line_height,
7497 scroll_pixel_position,
7498 newest_selection_head,
7499 editor_width,
7500 &style,
7501 window,
7502 cx,
7503 );
7504
7505 let mouse_context_menu = self.layout_mouse_context_menu(
7506 &snapshot,
7507 start_row..end_row,
7508 content_origin,
7509 window,
7510 cx,
7511 );
7512
7513 window.with_element_namespace("crease_toggles", |window| {
7514 self.prepaint_crease_toggles(
7515 &mut crease_toggles,
7516 line_height,
7517 &gutter_dimensions,
7518 gutter_settings,
7519 scroll_pixel_position,
7520 &gutter_hitbox,
7521 window,
7522 cx,
7523 )
7524 });
7525
7526 let invisible_symbol_font_size = font_size / 2.;
7527 let tab_invisible = window
7528 .text_system()
7529 .shape_line(
7530 "→".into(),
7531 invisible_symbol_font_size,
7532 &[TextRun {
7533 len: "→".len(),
7534 font: self.style.text.font(),
7535 color: cx.theme().colors().editor_invisible,
7536 background_color: None,
7537 underline: None,
7538 strikethrough: None,
7539 }],
7540 )
7541 .unwrap();
7542 let space_invisible = window
7543 .text_system()
7544 .shape_line(
7545 "•".into(),
7546 invisible_symbol_font_size,
7547 &[TextRun {
7548 len: "•".len(),
7549 font: self.style.text.font(),
7550 color: cx.theme().colors().editor_invisible,
7551 background_color: None,
7552 underline: None,
7553 strikethrough: None,
7554 }],
7555 )
7556 .unwrap();
7557
7558 let mode = snapshot.mode;
7559
7560 let position_map = Rc::new(PositionMap {
7561 size: bounds.size,
7562 visible_row_range,
7563 scroll_pixel_position,
7564 scroll_max,
7565 line_layouts,
7566 line_height,
7567 em_width,
7568 em_advance,
7569 snapshot,
7570 gutter_hitbox: gutter_hitbox.clone(),
7571 text_hitbox: text_hitbox.clone(),
7572 });
7573
7574 self.editor.update(cx, |editor, _| {
7575 editor.last_position_map = Some(position_map.clone())
7576 });
7577
7578 let hunk_controls = self.layout_diff_hunk_controls(
7579 start_row..end_row,
7580 &row_infos,
7581 &text_hitbox,
7582 &position_map,
7583 newest_selection_head,
7584 line_height,
7585 scroll_pixel_position,
7586 &display_hunks,
7587 self.editor.clone(),
7588 window,
7589 cx,
7590 );
7591
7592 EditorLayout {
7593 mode,
7594 position_map,
7595 visible_display_row_range: start_row..end_row,
7596 wrap_guides,
7597 indent_guides,
7598 hitbox,
7599 gutter_hitbox,
7600 display_hunks,
7601 content_origin,
7602 scrollbars_layout,
7603 active_rows,
7604 highlighted_rows,
7605 highlighted_ranges,
7606 highlighted_gutter_ranges,
7607 redacted_ranges,
7608 line_elements,
7609 line_numbers,
7610 blamed_display_rows,
7611 inline_blame,
7612 blocks,
7613 cursors,
7614 visible_cursors,
7615 selections,
7616 inline_completion_popover,
7617 diff_hunk_controls: hunk_controls,
7618 mouse_context_menu,
7619 test_indicators,
7620 code_actions_indicator,
7621 crease_toggles,
7622 crease_trailers,
7623 tab_invisible,
7624 space_invisible,
7625 sticky_buffer_header,
7626 }
7627 })
7628 })
7629 })
7630 }
7631
7632 fn paint(
7633 &mut self,
7634 _: Option<&GlobalElementId>,
7635 bounds: Bounds<gpui::Pixels>,
7636 _: &mut Self::RequestLayoutState,
7637 layout: &mut Self::PrepaintState,
7638 window: &mut Window,
7639 cx: &mut App,
7640 ) {
7641 let focus_handle = self.editor.focus_handle(cx);
7642 let key_context = self
7643 .editor
7644 .update(cx, |editor, cx| editor.key_context(window, cx));
7645
7646 window.set_key_context(key_context);
7647 window.handle_input(
7648 &focus_handle,
7649 ElementInputHandler::new(bounds, self.editor.clone()),
7650 cx,
7651 );
7652 self.register_actions(window, cx);
7653 self.register_key_listeners(window, cx, layout);
7654
7655 let text_style = TextStyleRefinement {
7656 font_size: Some(self.style.text.font_size),
7657 line_height: Some(self.style.text.line_height),
7658 ..Default::default()
7659 };
7660 let rem_size = self.rem_size(cx);
7661 window.with_rem_size(rem_size, |window| {
7662 window.with_text_style(Some(text_style), |window| {
7663 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7664 self.paint_mouse_listeners(layout, window, cx);
7665 self.paint_background(layout, window, cx);
7666 self.paint_indent_guides(layout, window, cx);
7667
7668 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7669 self.paint_blamed_display_rows(layout, window, cx);
7670 self.paint_line_numbers(layout, window, cx);
7671 }
7672
7673 self.paint_text(layout, window, cx);
7674
7675 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7676 self.paint_gutter_highlights(layout, window, cx);
7677 self.paint_gutter_indicators(layout, window, cx);
7678 }
7679
7680 if !layout.blocks.is_empty() {
7681 window.with_element_namespace("blocks", |window| {
7682 self.paint_blocks(layout, window, cx);
7683 });
7684 }
7685
7686 window.with_element_namespace("blocks", |window| {
7687 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7688 sticky_header.paint(window, cx)
7689 }
7690 });
7691
7692 self.paint_scrollbars(layout, window, cx);
7693 self.paint_inline_completion_popover(layout, window, cx);
7694 self.paint_mouse_context_menu(layout, window, cx);
7695 });
7696 })
7697 })
7698 }
7699}
7700
7701pub(super) fn gutter_bounds(
7702 editor_bounds: Bounds<Pixels>,
7703 gutter_dimensions: GutterDimensions,
7704) -> Bounds<Pixels> {
7705 Bounds {
7706 origin: editor_bounds.origin,
7707 size: size(gutter_dimensions.width, editor_bounds.size.height),
7708 }
7709}
7710
7711struct ScrollbarRangeData {
7712 scrollbar_bounds: Bounds<Pixels>,
7713 scroll_range: Bounds<Pixels>,
7714 letter_size: Size<Pixels>,
7715}
7716
7717impl ScrollbarRangeData {
7718 pub fn new(
7719 scrollbar_bounds: Bounds<Pixels>,
7720 letter_size: Size<Pixels>,
7721 snapshot: &EditorSnapshot,
7722 longest_line_width: Pixels,
7723 longest_line_blame_width: Pixels,
7724 style: &EditorStyle,
7725
7726 cx: &mut App,
7727 ) -> ScrollbarRangeData {
7728 // TODO: Simplify this function down, it requires a lot of parameters
7729 let max_row = snapshot.max_point().row();
7730 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7731
7732 let scrollbar_width = style.scrollbar_width;
7733
7734 let settings = EditorSettings::get_global(cx);
7735 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7736 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7737 ScrollBeyondLastLine::Off => px(1.),
7738 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7739 };
7740
7741 let overscroll = size(
7742 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7743 letter_size.height * scroll_beyond_last_line,
7744 );
7745
7746 let scroll_range = Bounds {
7747 origin: scrollbar_bounds.origin,
7748 size: text_bounds_size + overscroll,
7749 };
7750
7751 ScrollbarRangeData {
7752 scrollbar_bounds,
7753 scroll_range,
7754 letter_size,
7755 }
7756 }
7757}
7758
7759impl IntoElement for EditorElement {
7760 type Element = Self;
7761
7762 fn into_element(self) -> Self::Element {
7763 self
7764 }
7765}
7766
7767pub struct EditorLayout {
7768 position_map: Rc<PositionMap>,
7769 hitbox: Hitbox,
7770 gutter_hitbox: Hitbox,
7771 content_origin: gpui::Point<Pixels>,
7772 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7773 mode: EditorMode,
7774 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7775 indent_guides: Option<Vec<IndentGuideLayout>>,
7776 visible_display_row_range: Range<DisplayRow>,
7777 active_rows: BTreeMap<DisplayRow, bool>,
7778 highlighted_rows: BTreeMap<DisplayRow, gpui::Background>,
7779 line_elements: SmallVec<[AnyElement; 1]>,
7780 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7781 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7782 blamed_display_rows: Option<Vec<AnyElement>>,
7783 inline_blame: Option<AnyElement>,
7784 blocks: Vec<BlockLayout>,
7785 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7786 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7787 redacted_ranges: Vec<Range<DisplayPoint>>,
7788 cursors: Vec<(DisplayPoint, Hsla)>,
7789 visible_cursors: Vec<CursorLayout>,
7790 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7791 code_actions_indicator: Option<AnyElement>,
7792 test_indicators: Vec<AnyElement>,
7793 crease_toggles: Vec<Option<AnyElement>>,
7794 diff_hunk_controls: Vec<AnyElement>,
7795 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7796 inline_completion_popover: Option<AnyElement>,
7797 mouse_context_menu: Option<AnyElement>,
7798 tab_invisible: ShapedLine,
7799 space_invisible: ShapedLine,
7800 sticky_buffer_header: Option<AnyElement>,
7801}
7802
7803impl EditorLayout {
7804 fn line_end_overshoot(&self) -> Pixels {
7805 0.15 * self.position_map.line_height
7806 }
7807}
7808
7809struct LineNumberLayout {
7810 shaped_line: ShapedLine,
7811 hitbox: Option<Hitbox>,
7812 display_row: DisplayRow,
7813}
7814
7815struct ColoredRange<T> {
7816 start: T,
7817 end: T,
7818 color: Hsla,
7819}
7820
7821#[derive(Clone)]
7822struct ScrollbarLayout {
7823 hitbox: Hitbox,
7824 visible_range: Range<f32>,
7825 visible: bool,
7826 text_unit_size: Pixels,
7827 thumb_size: Pixels,
7828 axis: Axis,
7829}
7830
7831impl ScrollbarLayout {
7832 const BORDER_WIDTH: Pixels = px(1.0);
7833 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7834 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7835 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7836
7837 fn thumb_bounds(&self) -> Bounds<Pixels> {
7838 match self.axis {
7839 Axis::Vertical => {
7840 let thumb_top = self.y_for_row(self.visible_range.start);
7841 let thumb_bottom = thumb_top + self.thumb_size;
7842 Bounds::from_corners(
7843 point(self.hitbox.left(), thumb_top),
7844 point(self.hitbox.right(), thumb_bottom),
7845 )
7846 }
7847 Axis::Horizontal => {
7848 let thumb_left =
7849 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7850 let thumb_right = thumb_left + self.thumb_size;
7851 Bounds::from_corners(
7852 point(thumb_left, self.hitbox.top()),
7853 point(thumb_right, self.hitbox.bottom()),
7854 )
7855 }
7856 }
7857 }
7858
7859 fn y_for_row(&self, row: f32) -> Pixels {
7860 self.hitbox.top() + row * self.text_unit_size
7861 }
7862
7863 fn marker_quads_for_ranges(
7864 &self,
7865 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7866 column: Option<usize>,
7867 ) -> Vec<PaintQuad> {
7868 struct MinMax {
7869 min: Pixels,
7870 max: Pixels,
7871 }
7872 let (x_range, height_limit) = if let Some(column) = column {
7873 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7874 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7875 let end = start + column_width;
7876 (
7877 Range { start, end },
7878 MinMax {
7879 min: Self::MIN_MARKER_HEIGHT,
7880 max: px(f32::MAX),
7881 },
7882 )
7883 } else {
7884 (
7885 Range {
7886 start: Self::BORDER_WIDTH,
7887 end: self.hitbox.size.width,
7888 },
7889 MinMax {
7890 min: Self::LINE_MARKER_HEIGHT,
7891 max: Self::LINE_MARKER_HEIGHT,
7892 },
7893 )
7894 };
7895
7896 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7897 let mut pixel_ranges = row_ranges
7898 .into_iter()
7899 .map(|range| {
7900 let start_y = row_to_y(range.start);
7901 let end_y = row_to_y(range.end)
7902 + self
7903 .text_unit_size
7904 .max(height_limit.min)
7905 .min(height_limit.max);
7906 ColoredRange {
7907 start: start_y,
7908 end: end_y,
7909 color: range.color,
7910 }
7911 })
7912 .peekable();
7913
7914 let mut quads = Vec::new();
7915 while let Some(mut pixel_range) = pixel_ranges.next() {
7916 while let Some(next_pixel_range) = pixel_ranges.peek() {
7917 if pixel_range.end >= next_pixel_range.start - px(1.0)
7918 && pixel_range.color == next_pixel_range.color
7919 {
7920 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7921 pixel_ranges.next();
7922 } else {
7923 break;
7924 }
7925 }
7926
7927 let bounds = Bounds::from_corners(
7928 point(x_range.start, pixel_range.start),
7929 point(x_range.end, pixel_range.end),
7930 );
7931 quads.push(quad(
7932 bounds,
7933 Corners::default(),
7934 pixel_range.color,
7935 Edges::default(),
7936 Hsla::transparent_black(),
7937 ));
7938 }
7939
7940 quads
7941 }
7942}
7943
7944struct CreaseTrailerLayout {
7945 element: AnyElement,
7946 bounds: Bounds<Pixels>,
7947}
7948
7949pub(crate) struct PositionMap {
7950 pub size: Size<Pixels>,
7951 pub line_height: Pixels,
7952 pub scroll_pixel_position: gpui::Point<Pixels>,
7953 pub scroll_max: gpui::Point<f32>,
7954 pub em_width: Pixels,
7955 pub em_advance: Pixels,
7956 pub visible_row_range: Range<DisplayRow>,
7957 pub line_layouts: Vec<LineWithInvisibles>,
7958 pub snapshot: EditorSnapshot,
7959 pub text_hitbox: Hitbox,
7960 pub gutter_hitbox: Hitbox,
7961}
7962
7963#[derive(Debug, Copy, Clone)]
7964pub struct PointForPosition {
7965 pub previous_valid: DisplayPoint,
7966 pub next_valid: DisplayPoint,
7967 pub exact_unclipped: DisplayPoint,
7968 pub column_overshoot_after_line_end: u32,
7969}
7970
7971impl PointForPosition {
7972 pub fn as_valid(&self) -> Option<DisplayPoint> {
7973 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7974 Some(self.previous_valid)
7975 } else {
7976 None
7977 }
7978 }
7979}
7980
7981impl PositionMap {
7982 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7983 let text_bounds = self.text_hitbox.bounds;
7984 let scroll_position = self.snapshot.scroll_position();
7985 let position = position - text_bounds.origin;
7986 let y = position.y.max(px(0.)).min(self.size.height);
7987 let x = position.x + (scroll_position.x * self.em_width);
7988 let row = ((y / self.line_height) + scroll_position.y) as u32;
7989
7990 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7991 .line_layouts
7992 .get(row as usize - scroll_position.y as usize)
7993 {
7994 if let Some(ix) = line.index_for_x(x) {
7995 (ix as u32, px(0.))
7996 } else {
7997 (line.len as u32, px(0.).max(x - line.width))
7998 }
7999 } else {
8000 (0, x)
8001 };
8002
8003 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8004 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8005 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8006
8007 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8008 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8009 PointForPosition {
8010 previous_valid,
8011 next_valid,
8012 exact_unclipped,
8013 column_overshoot_after_line_end,
8014 }
8015 }
8016}
8017
8018struct BlockLayout {
8019 id: BlockId,
8020 row: Option<DisplayRow>,
8021 element: AnyElement,
8022 available_space: Size<AvailableSpace>,
8023 style: BlockStyle,
8024}
8025
8026fn layout_line(
8027 row: DisplayRow,
8028 snapshot: &EditorSnapshot,
8029 style: &EditorStyle,
8030 text_width: Pixels,
8031 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8032 window: &mut Window,
8033 cx: &mut App,
8034) -> LineWithInvisibles {
8035 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8036 LineWithInvisibles::from_chunks(
8037 chunks,
8038 &style,
8039 MAX_LINE_LEN,
8040 1,
8041 snapshot.mode,
8042 text_width,
8043 is_row_soft_wrapped,
8044 window,
8045 cx,
8046 )
8047 .pop()
8048 .unwrap()
8049}
8050
8051#[derive(Debug)]
8052pub struct IndentGuideLayout {
8053 origin: gpui::Point<Pixels>,
8054 length: Pixels,
8055 single_indent_width: Pixels,
8056 depth: u32,
8057 active: bool,
8058 settings: IndentGuideSettings,
8059}
8060
8061pub struct CursorLayout {
8062 origin: gpui::Point<Pixels>,
8063 block_width: Pixels,
8064 line_height: Pixels,
8065 color: Hsla,
8066 shape: CursorShape,
8067 block_text: Option<ShapedLine>,
8068 cursor_name: Option<AnyElement>,
8069}
8070
8071#[derive(Debug)]
8072pub struct CursorName {
8073 string: SharedString,
8074 color: Hsla,
8075 is_top_row: bool,
8076}
8077
8078impl CursorLayout {
8079 pub fn new(
8080 origin: gpui::Point<Pixels>,
8081 block_width: Pixels,
8082 line_height: Pixels,
8083 color: Hsla,
8084 shape: CursorShape,
8085 block_text: Option<ShapedLine>,
8086 ) -> CursorLayout {
8087 CursorLayout {
8088 origin,
8089 block_width,
8090 line_height,
8091 color,
8092 shape,
8093 block_text,
8094 cursor_name: None,
8095 }
8096 }
8097
8098 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8099 Bounds {
8100 origin: self.origin + origin,
8101 size: size(self.block_width, self.line_height),
8102 }
8103 }
8104
8105 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8106 match self.shape {
8107 CursorShape::Bar => Bounds {
8108 origin: self.origin + origin,
8109 size: size(px(2.0), self.line_height),
8110 },
8111 CursorShape::Block | CursorShape::Hollow => Bounds {
8112 origin: self.origin + origin,
8113 size: size(self.block_width, self.line_height),
8114 },
8115 CursorShape::Underline => Bounds {
8116 origin: self.origin
8117 + origin
8118 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8119 size: size(self.block_width, px(2.0)),
8120 },
8121 }
8122 }
8123
8124 pub fn layout(
8125 &mut self,
8126 origin: gpui::Point<Pixels>,
8127 cursor_name: Option<CursorName>,
8128 window: &mut Window,
8129 cx: &mut App,
8130 ) {
8131 if let Some(cursor_name) = cursor_name {
8132 let bounds = self.bounds(origin);
8133 let text_size = self.line_height / 1.5;
8134
8135 let name_origin = if cursor_name.is_top_row {
8136 point(bounds.right() - px(1.), bounds.top())
8137 } else {
8138 match self.shape {
8139 CursorShape::Bar => point(
8140 bounds.right() - px(2.),
8141 bounds.top() - text_size / 2. - px(1.),
8142 ),
8143 _ => point(
8144 bounds.right() - px(1.),
8145 bounds.top() - text_size / 2. - px(1.),
8146 ),
8147 }
8148 };
8149 let mut name_element = div()
8150 .bg(self.color)
8151 .text_size(text_size)
8152 .px_0p5()
8153 .line_height(text_size + px(2.))
8154 .text_color(cursor_name.color)
8155 .child(cursor_name.string.clone())
8156 .into_any_element();
8157
8158 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8159
8160 self.cursor_name = Some(name_element);
8161 }
8162 }
8163
8164 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8165 let bounds = self.bounds(origin);
8166
8167 //Draw background or border quad
8168 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8169 outline(bounds, self.color)
8170 } else {
8171 fill(bounds, self.color)
8172 };
8173
8174 if let Some(name) = &mut self.cursor_name {
8175 name.paint(window, cx);
8176 }
8177
8178 window.paint_quad(cursor);
8179
8180 if let Some(block_text) = &self.block_text {
8181 block_text
8182 .paint(self.origin + origin, self.line_height, window, cx)
8183 .log_err();
8184 }
8185 }
8186
8187 pub fn shape(&self) -> CursorShape {
8188 self.shape
8189 }
8190}
8191
8192#[derive(Debug)]
8193pub struct HighlightedRange {
8194 pub start_y: Pixels,
8195 pub line_height: Pixels,
8196 pub lines: Vec<HighlightedRangeLine>,
8197 pub color: Hsla,
8198 pub corner_radius: Pixels,
8199}
8200
8201#[derive(Debug)]
8202pub struct HighlightedRangeLine {
8203 pub start_x: Pixels,
8204 pub end_x: Pixels,
8205}
8206
8207impl HighlightedRange {
8208 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8209 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8210 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8211 self.paint_lines(
8212 self.start_y + self.line_height,
8213 &self.lines[1..],
8214 bounds,
8215 window,
8216 );
8217 } else {
8218 self.paint_lines(self.start_y, &self.lines, bounds, window);
8219 }
8220 }
8221
8222 fn paint_lines(
8223 &self,
8224 start_y: Pixels,
8225 lines: &[HighlightedRangeLine],
8226 _bounds: Bounds<Pixels>,
8227 window: &mut Window,
8228 ) {
8229 if lines.is_empty() {
8230 return;
8231 }
8232
8233 let first_line = lines.first().unwrap();
8234 let last_line = lines.last().unwrap();
8235
8236 let first_top_left = point(first_line.start_x, start_y);
8237 let first_top_right = point(first_line.end_x, start_y);
8238
8239 let curve_height = point(Pixels::ZERO, self.corner_radius);
8240 let curve_width = |start_x: Pixels, end_x: Pixels| {
8241 let max = (end_x - start_x) / 2.;
8242 let width = if max < self.corner_radius {
8243 max
8244 } else {
8245 self.corner_radius
8246 };
8247
8248 point(width, Pixels::ZERO)
8249 };
8250
8251 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8252 let mut builder = gpui::PathBuilder::fill();
8253 builder.move_to(first_top_right - top_curve_width);
8254 builder.curve_to(first_top_right + curve_height, first_top_right);
8255
8256 let mut iter = lines.iter().enumerate().peekable();
8257 while let Some((ix, line)) = iter.next() {
8258 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8259
8260 if let Some((_, next_line)) = iter.peek() {
8261 let next_top_right = point(next_line.end_x, bottom_right.y);
8262
8263 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8264 Ordering::Equal => {
8265 builder.line_to(bottom_right);
8266 }
8267 Ordering::Less => {
8268 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8269 builder.line_to(bottom_right - curve_height);
8270 if self.corner_radius > Pixels::ZERO {
8271 builder.curve_to(bottom_right - curve_width, bottom_right);
8272 }
8273 builder.line_to(next_top_right + curve_width);
8274 if self.corner_radius > Pixels::ZERO {
8275 builder.curve_to(next_top_right + curve_height, next_top_right);
8276 }
8277 }
8278 Ordering::Greater => {
8279 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8280 builder.line_to(bottom_right - curve_height);
8281 if self.corner_radius > Pixels::ZERO {
8282 builder.curve_to(bottom_right + curve_width, bottom_right);
8283 }
8284 builder.line_to(next_top_right - curve_width);
8285 if self.corner_radius > Pixels::ZERO {
8286 builder.curve_to(next_top_right + curve_height, next_top_right);
8287 }
8288 }
8289 }
8290 } else {
8291 let curve_width = curve_width(line.start_x, line.end_x);
8292 builder.line_to(bottom_right - curve_height);
8293 if self.corner_radius > Pixels::ZERO {
8294 builder.curve_to(bottom_right - curve_width, bottom_right);
8295 }
8296
8297 let bottom_left = point(line.start_x, bottom_right.y);
8298 builder.line_to(bottom_left + curve_width);
8299 if self.corner_radius > Pixels::ZERO {
8300 builder.curve_to(bottom_left - curve_height, bottom_left);
8301 }
8302 }
8303 }
8304
8305 if first_line.start_x > last_line.start_x {
8306 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8307 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8308 builder.line_to(second_top_left + curve_height);
8309 if self.corner_radius > Pixels::ZERO {
8310 builder.curve_to(second_top_left + curve_width, second_top_left);
8311 }
8312 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8313 builder.line_to(first_bottom_left - curve_width);
8314 if self.corner_radius > Pixels::ZERO {
8315 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8316 }
8317 }
8318
8319 builder.line_to(first_top_left + curve_height);
8320 if self.corner_radius > Pixels::ZERO {
8321 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8322 }
8323 builder.line_to(first_top_right - top_curve_width);
8324
8325 if let Ok(path) = builder.build() {
8326 window.paint_path(path, self.color);
8327 }
8328 }
8329}
8330
8331enum CursorPopoverType {
8332 CodeContextMenu,
8333 EditPrediction,
8334}
8335
8336pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8337 (delta.pow(1.5) / 100.0).into()
8338}
8339
8340fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8341 (delta.pow(1.2) / 300.0).into()
8342}
8343
8344pub fn register_action<T: Action>(
8345 editor: &Entity<Editor>,
8346 window: &mut Window,
8347 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8348) {
8349 let editor = editor.clone();
8350 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8351 let action = action.downcast_ref().unwrap();
8352 if phase == DispatchPhase::Bubble {
8353 editor.update(cx, |editor, cx| {
8354 listener(editor, action, window, cx);
8355 })
8356 }
8357 })
8358}
8359
8360fn compute_auto_height_layout(
8361 editor: &mut Editor,
8362 max_lines: usize,
8363 max_line_number_width: Pixels,
8364 known_dimensions: Size<Option<Pixels>>,
8365 available_width: AvailableSpace,
8366 window: &mut Window,
8367 cx: &mut Context<Editor>,
8368) -> Option<Size<Pixels>> {
8369 let width = known_dimensions.width.or({
8370 if let AvailableSpace::Definite(available_width) = available_width {
8371 Some(available_width)
8372 } else {
8373 None
8374 }
8375 })?;
8376 if let Some(height) = known_dimensions.height {
8377 return Some(size(width, height));
8378 }
8379
8380 let style = editor.style.as_ref().unwrap();
8381 let font_id = window.text_system().resolve_font(&style.text.font());
8382 let font_size = style.text.font_size.to_pixels(window.rem_size());
8383 let line_height = style.text.line_height_in_pixels(window.rem_size());
8384 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8385
8386 let mut snapshot = editor.snapshot(window, cx);
8387 let gutter_dimensions = snapshot
8388 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8389 .unwrap_or_default();
8390
8391 editor.gutter_dimensions = gutter_dimensions;
8392 let text_width = width - gutter_dimensions.width;
8393 let overscroll = size(em_width, px(0.));
8394
8395 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8396 if editor.set_wrap_width(Some(editor_width), cx) {
8397 snapshot = editor.snapshot(window, cx);
8398 }
8399
8400 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8401 let height = scroll_height
8402 .max(line_height)
8403 .min(line_height * max_lines as f32);
8404
8405 Some(size(width, height))
8406}
8407
8408#[cfg(test)]
8409mod tests {
8410 use super::*;
8411 use crate::{
8412 display_map::{BlockPlacement, BlockProperties},
8413 editor_tests::{init_test, update_test_language_settings},
8414 Editor, MultiBuffer,
8415 };
8416 use gpui::{TestAppContext, VisualTestContext};
8417 use language::language_settings;
8418 use log::info;
8419 use similar::DiffableStr;
8420 use std::num::NonZeroU32;
8421 use util::test::sample_text;
8422
8423 #[gpui::test]
8424 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8425 init_test(cx, |_| {});
8426 let window = cx.add_window(|window, cx| {
8427 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8428 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8429 });
8430
8431 let editor = window.root(cx).unwrap();
8432 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8433 let line_height = window
8434 .update(cx, |_, window, _| {
8435 style.text.line_height_in_pixels(window.rem_size())
8436 })
8437 .unwrap();
8438 let element = EditorElement::new(&editor, style);
8439 let snapshot = window
8440 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8441 .unwrap();
8442
8443 let layouts = cx
8444 .update_window(*window, |_, window, cx| {
8445 element.layout_line_numbers(
8446 None,
8447 GutterDimensions {
8448 left_padding: Pixels::ZERO,
8449 right_padding: Pixels::ZERO,
8450 width: px(30.0),
8451 margin: Pixels::ZERO,
8452 git_blame_entries_width: None,
8453 },
8454 line_height,
8455 gpui::Point::default(),
8456 DisplayRow(0)..DisplayRow(6),
8457 &(0..6)
8458 .map(|row| RowInfo {
8459 buffer_row: Some(row),
8460 ..Default::default()
8461 })
8462 .collect::<Vec<_>>(),
8463 Some(DisplayPoint::new(DisplayRow(0), 0)),
8464 &snapshot,
8465 window,
8466 cx,
8467 )
8468 })
8469 .unwrap();
8470 assert_eq!(layouts.len(), 6);
8471
8472 let relative_rows = window
8473 .update(cx, |editor, window, cx| {
8474 let snapshot = editor.snapshot(window, cx);
8475 element.calculate_relative_line_numbers(
8476 &snapshot,
8477 &(DisplayRow(0)..DisplayRow(6)),
8478 Some(DisplayRow(3)),
8479 )
8480 })
8481 .unwrap();
8482 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8483 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8484 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8485 // current line has no relative number
8486 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8487 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8488
8489 // works if cursor is before screen
8490 let relative_rows = window
8491 .update(cx, |editor, window, cx| {
8492 let snapshot = editor.snapshot(window, cx);
8493 element.calculate_relative_line_numbers(
8494 &snapshot,
8495 &(DisplayRow(3)..DisplayRow(6)),
8496 Some(DisplayRow(1)),
8497 )
8498 })
8499 .unwrap();
8500 assert_eq!(relative_rows.len(), 3);
8501 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8502 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8503 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8504
8505 // works if cursor is after screen
8506 let relative_rows = window
8507 .update(cx, |editor, window, cx| {
8508 let snapshot = editor.snapshot(window, cx);
8509 element.calculate_relative_line_numbers(
8510 &snapshot,
8511 &(DisplayRow(0)..DisplayRow(3)),
8512 Some(DisplayRow(6)),
8513 )
8514 })
8515 .unwrap();
8516 assert_eq!(relative_rows.len(), 3);
8517 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8518 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8519 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8520 }
8521
8522 #[gpui::test]
8523 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8524 init_test(cx, |_| {});
8525
8526 let window = cx.add_window(|window, cx| {
8527 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8528 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8529 });
8530 let cx = &mut VisualTestContext::from_window(*window, cx);
8531 let editor = window.root(cx).unwrap();
8532 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8533
8534 window
8535 .update(cx, |editor, window, cx| {
8536 editor.cursor_shape = CursorShape::Block;
8537 editor.change_selections(None, window, cx, |s| {
8538 s.select_ranges([
8539 Point::new(0, 0)..Point::new(1, 0),
8540 Point::new(3, 2)..Point::new(3, 3),
8541 Point::new(5, 6)..Point::new(6, 0),
8542 ]);
8543 });
8544 })
8545 .unwrap();
8546
8547 let (_, state) = cx.draw(
8548 point(px(500.), px(500.)),
8549 size(px(500.), px(500.)),
8550 |_, _| EditorElement::new(&editor, style),
8551 );
8552
8553 assert_eq!(state.selections.len(), 1);
8554 let local_selections = &state.selections[0].1;
8555 assert_eq!(local_selections.len(), 3);
8556 // moves cursor back one line
8557 assert_eq!(
8558 local_selections[0].head,
8559 DisplayPoint::new(DisplayRow(0), 6)
8560 );
8561 assert_eq!(
8562 local_selections[0].range,
8563 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8564 );
8565
8566 // moves cursor back one column
8567 assert_eq!(
8568 local_selections[1].range,
8569 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8570 );
8571 assert_eq!(
8572 local_selections[1].head,
8573 DisplayPoint::new(DisplayRow(3), 2)
8574 );
8575
8576 // leaves cursor on the max point
8577 assert_eq!(
8578 local_selections[2].range,
8579 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8580 );
8581 assert_eq!(
8582 local_selections[2].head,
8583 DisplayPoint::new(DisplayRow(6), 0)
8584 );
8585
8586 // active lines does not include 1 (even though the range of the selection does)
8587 assert_eq!(
8588 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8589 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8590 );
8591
8592 // multi-buffer support
8593 // in DisplayPoint coordinates, this is what we're dealing with:
8594 // 0: [[file
8595 // 1: header
8596 // 2: section]]
8597 // 3: aaaaaa
8598 // 4: bbbbbb
8599 // 5: cccccc
8600 // 6:
8601 // 7: [[footer]]
8602 // 8: [[header]]
8603 // 9: ffffff
8604 // 10: gggggg
8605 // 11: hhhhhh
8606 // 12:
8607 // 13: [[footer]]
8608 // 14: [[file
8609 // 15: header
8610 // 16: section]]
8611 // 17: bbbbbb
8612 // 18: cccccc
8613 // 19: dddddd
8614 // 20: [[footer]]
8615 let window = cx.add_window(|window, cx| {
8616 let buffer = MultiBuffer::build_multi(
8617 [
8618 (
8619 &(sample_text(8, 6, 'a') + "\n"),
8620 vec![
8621 Point::new(0, 0)..Point::new(3, 0),
8622 Point::new(4, 0)..Point::new(7, 0),
8623 ],
8624 ),
8625 (
8626 &(sample_text(8, 6, 'a') + "\n"),
8627 vec![Point::new(1, 0)..Point::new(3, 0)],
8628 ),
8629 ],
8630 cx,
8631 );
8632 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8633 });
8634 let editor = window.root(cx).unwrap();
8635 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8636 let _state = window.update(cx, |editor, window, cx| {
8637 editor.cursor_shape = CursorShape::Block;
8638 editor.change_selections(None, window, cx, |s| {
8639 s.select_display_ranges([
8640 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8641 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8642 ]);
8643 });
8644 });
8645
8646 let (_, state) = cx.draw(
8647 point(px(500.), px(500.)),
8648 size(px(500.), px(500.)),
8649 |_, _| EditorElement::new(&editor, style),
8650 );
8651 assert_eq!(state.selections.len(), 1);
8652 let local_selections = &state.selections[0].1;
8653 assert_eq!(local_selections.len(), 2);
8654
8655 // moves cursor on excerpt boundary back a line
8656 // and doesn't allow selection to bleed through
8657 assert_eq!(
8658 local_selections[0].range,
8659 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8660 );
8661 assert_eq!(
8662 local_selections[0].head,
8663 DisplayPoint::new(DisplayRow(6), 0)
8664 );
8665 // moves cursor on buffer boundary back two lines
8666 // and doesn't allow selection to bleed through
8667 assert_eq!(
8668 local_selections[1].range,
8669 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8670 );
8671 assert_eq!(
8672 local_selections[1].head,
8673 DisplayPoint::new(DisplayRow(12), 0)
8674 );
8675 }
8676
8677 #[gpui::test]
8678 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8679 init_test(cx, |_| {});
8680
8681 let window = cx.add_window(|window, cx| {
8682 let buffer = MultiBuffer::build_simple("", cx);
8683 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8684 });
8685 let cx = &mut VisualTestContext::from_window(*window, cx);
8686 let editor = window.root(cx).unwrap();
8687 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8688 window
8689 .update(cx, |editor, window, cx| {
8690 editor.set_placeholder_text("hello", cx);
8691 editor.insert_blocks(
8692 [BlockProperties {
8693 style: BlockStyle::Fixed,
8694 placement: BlockPlacement::Above(Anchor::min()),
8695 height: 3,
8696 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8697 priority: 0,
8698 }],
8699 None,
8700 cx,
8701 );
8702
8703 // Blur the editor so that it displays placeholder text.
8704 window.blur();
8705 })
8706 .unwrap();
8707
8708 let (_, state) = cx.draw(
8709 point(px(500.), px(500.)),
8710 size(px(500.), px(500.)),
8711 |_, _| EditorElement::new(&editor, style),
8712 );
8713 assert_eq!(state.position_map.line_layouts.len(), 4);
8714 assert_eq!(state.line_numbers.len(), 1);
8715 assert_eq!(
8716 state
8717 .line_numbers
8718 .get(&MultiBufferRow(0))
8719 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8720 Some("1")
8721 );
8722 }
8723
8724 #[gpui::test]
8725 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8726 const TAB_SIZE: u32 = 4;
8727
8728 let input_text = "\t \t|\t| a b";
8729 let expected_invisibles = vec![
8730 Invisible::Tab {
8731 line_start_offset: 0,
8732 line_end_offset: TAB_SIZE as usize,
8733 },
8734 Invisible::Whitespace {
8735 line_offset: TAB_SIZE as usize,
8736 },
8737 Invisible::Tab {
8738 line_start_offset: TAB_SIZE as usize + 1,
8739 line_end_offset: TAB_SIZE as usize * 2,
8740 },
8741 Invisible::Tab {
8742 line_start_offset: TAB_SIZE as usize * 2 + 1,
8743 line_end_offset: TAB_SIZE as usize * 3,
8744 },
8745 Invisible::Whitespace {
8746 line_offset: TAB_SIZE as usize * 3 + 1,
8747 },
8748 Invisible::Whitespace {
8749 line_offset: TAB_SIZE as usize * 3 + 3,
8750 },
8751 ];
8752 assert_eq!(
8753 expected_invisibles.len(),
8754 input_text
8755 .chars()
8756 .filter(|initial_char| initial_char.is_whitespace())
8757 .count(),
8758 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8759 );
8760
8761 for show_line_numbers in [true, false] {
8762 init_test(cx, |s| {
8763 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8764 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8765 });
8766
8767 let actual_invisibles = collect_invisibles_from_new_editor(
8768 cx,
8769 EditorMode::Full,
8770 input_text,
8771 px(500.0),
8772 show_line_numbers,
8773 );
8774
8775 assert_eq!(expected_invisibles, actual_invisibles);
8776 }
8777 }
8778
8779 #[gpui::test]
8780 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8781 init_test(cx, |s| {
8782 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8783 s.defaults.tab_size = NonZeroU32::new(4);
8784 });
8785
8786 for editor_mode_without_invisibles in [
8787 EditorMode::SingleLine { auto_width: false },
8788 EditorMode::AutoHeight { max_lines: 100 },
8789 ] {
8790 for show_line_numbers in [true, false] {
8791 let invisibles = collect_invisibles_from_new_editor(
8792 cx,
8793 editor_mode_without_invisibles,
8794 "\t\t\t| | a b",
8795 px(500.0),
8796 show_line_numbers,
8797 );
8798 assert!(invisibles.is_empty(),
8799 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8800 }
8801 }
8802 }
8803
8804 #[gpui::test]
8805 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8806 let tab_size = 4;
8807 let input_text = "a\tbcd ".repeat(9);
8808 let repeated_invisibles = [
8809 Invisible::Tab {
8810 line_start_offset: 1,
8811 line_end_offset: tab_size as usize,
8812 },
8813 Invisible::Whitespace {
8814 line_offset: tab_size as usize + 3,
8815 },
8816 Invisible::Whitespace {
8817 line_offset: tab_size as usize + 4,
8818 },
8819 Invisible::Whitespace {
8820 line_offset: tab_size as usize + 5,
8821 },
8822 Invisible::Whitespace {
8823 line_offset: tab_size as usize + 6,
8824 },
8825 Invisible::Whitespace {
8826 line_offset: tab_size as usize + 7,
8827 },
8828 ];
8829 let expected_invisibles = std::iter::once(repeated_invisibles)
8830 .cycle()
8831 .take(9)
8832 .flatten()
8833 .collect::<Vec<_>>();
8834 assert_eq!(
8835 expected_invisibles.len(),
8836 input_text
8837 .chars()
8838 .filter(|initial_char| initial_char.is_whitespace())
8839 .count(),
8840 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8841 );
8842 info!("Expected invisibles: {expected_invisibles:?}");
8843
8844 init_test(cx, |_| {});
8845
8846 // Put the same string with repeating whitespace pattern into editors of various size,
8847 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8848 let resize_step = 10.0;
8849 let mut editor_width = 200.0;
8850 while editor_width <= 1000.0 {
8851 for show_line_numbers in [true, false] {
8852 update_test_language_settings(cx, |s| {
8853 s.defaults.tab_size = NonZeroU32::new(tab_size);
8854 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8855 s.defaults.preferred_line_length = Some(editor_width as u32);
8856 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8857 });
8858
8859 let actual_invisibles = collect_invisibles_from_new_editor(
8860 cx,
8861 EditorMode::Full,
8862 &input_text,
8863 px(editor_width),
8864 show_line_numbers,
8865 );
8866
8867 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8868 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8869 let mut i = 0;
8870 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8871 i = actual_index;
8872 match expected_invisibles.get(i) {
8873 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8874 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8875 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8876 _ => {
8877 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8878 }
8879 },
8880 None => {
8881 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8882 }
8883 }
8884 }
8885 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8886 assert!(
8887 missing_expected_invisibles.is_empty(),
8888 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8889 );
8890
8891 editor_width += resize_step;
8892 }
8893 }
8894 }
8895
8896 fn collect_invisibles_from_new_editor(
8897 cx: &mut TestAppContext,
8898 editor_mode: EditorMode,
8899 input_text: &str,
8900 editor_width: Pixels,
8901 show_line_numbers: bool,
8902 ) -> Vec<Invisible> {
8903 info!(
8904 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8905 editor_width.0
8906 );
8907 let window = cx.add_window(|window, cx| {
8908 let buffer = MultiBuffer::build_simple(input_text, cx);
8909 Editor::new(editor_mode, buffer, None, true, window, cx)
8910 });
8911 let cx = &mut VisualTestContext::from_window(*window, cx);
8912 let editor = window.root(cx).unwrap();
8913
8914 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8915 window
8916 .update(cx, |editor, _, cx| {
8917 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8918 editor.set_wrap_width(Some(editor_width), cx);
8919 editor.set_show_line_numbers(show_line_numbers, cx);
8920 })
8921 .unwrap();
8922 let (_, state) = cx.draw(
8923 point(px(500.), px(500.)),
8924 size(px(500.), px(500.)),
8925 |_, _| EditorElement::new(&editor, style),
8926 );
8927 state
8928 .position_map
8929 .line_layouts
8930 .iter()
8931 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8932 .cloned()
8933 .collect()
8934 }
8935}
8936
8937fn diff_hunk_controls(
8938 row: u32,
8939 hunk_range: Range<Anchor>,
8940 line_height: Pixels,
8941 editor: &Entity<Editor>,
8942 cx: &mut App,
8943) -> AnyElement {
8944 h_flex()
8945 .h(line_height)
8946 .mr_1()
8947 .gap_1()
8948 .px_1()
8949 .pb_1()
8950 .border_b_1()
8951 .border_color(cx.theme().colors().border_variant)
8952 .rounded_b_lg()
8953 .bg(cx.theme().colors().editor_background)
8954 .gap_1()
8955 .child(
8956 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8957 .shape(IconButtonShape::Square)
8958 .icon_size(IconSize::Small)
8959 // .disabled(!has_multiple_hunks)
8960 .tooltip({
8961 let focus_handle = editor.focus_handle(cx);
8962 move |window, cx| {
8963 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8964 }
8965 })
8966 .on_click({
8967 let editor = editor.clone();
8968 move |_event, window, cx| {
8969 editor.update(cx, |editor, cx| {
8970 let snapshot = editor.snapshot(window, cx);
8971 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8972 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8973 editor.expand_selected_diff_hunks(cx);
8974 });
8975 }
8976 }),
8977 )
8978 .child(
8979 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8980 .shape(IconButtonShape::Square)
8981 .icon_size(IconSize::Small)
8982 // .disabled(!has_multiple_hunks)
8983 .tooltip({
8984 let focus_handle = editor.focus_handle(cx);
8985 move |window, cx| {
8986 Tooltip::for_action_in(
8987 "Previous Hunk",
8988 &GoToPrevHunk,
8989 &focus_handle,
8990 window,
8991 cx,
8992 )
8993 }
8994 })
8995 .on_click({
8996 let editor = editor.clone();
8997 move |_event, window, cx| {
8998 editor.update(cx, |editor, cx| {
8999 let snapshot = editor.snapshot(window, cx);
9000 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9001 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
9002 editor.expand_selected_diff_hunks(cx);
9003 });
9004 }
9005 }),
9006 )
9007 .child(
9008 IconButton::new("discard", IconName::Undo)
9009 .shape(IconButtonShape::Square)
9010 .icon_size(IconSize::Small)
9011 .tooltip({
9012 let focus_handle = editor.focus_handle(cx);
9013 move |window, cx| {
9014 Tooltip::for_action_in(
9015 "Discard Hunk",
9016 &RevertSelectedHunks,
9017 &focus_handle,
9018 window,
9019 cx,
9020 )
9021 }
9022 })
9023 .on_click({
9024 let editor = editor.clone();
9025 move |_event, window, cx| {
9026 editor.update(cx, |editor, cx| {
9027 let snapshot = editor.snapshot(window, cx);
9028 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9029 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
9030 });
9031 }
9032 }),
9033 )
9034 .into_any_element()
9035}