1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::{CommitDetails, GitBlame},
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 hunk_diff::{diff_hunk_to_display, DisplayDiffHunk},
16 hunk_status,
17 items::BufferSearchHighlights,
18 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
19 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
20 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
21 DocumentHighlightRead, DocumentHighlightWrite, Editor, EditorMode, EditorSettings,
22 EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GutterDimensions, HalfPageDown,
23 HalfPageUp, HandleInput, HoveredCursor, HoveredHunk, InlineCompletion, JumpData, LineDown,
24 LineUp, OpenExcerpts, PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase, Selection,
25 SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold, CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT,
26 GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
27};
28use client::ParticipantIndex;
29use collections::{BTreeMap, HashMap, HashSet};
30use file_icons::FileIcons;
31use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
32use gpui::{
33 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
34 relative, size, svg, transparent_black, Action, AnyElement, AvailableSpace, Axis, Bounds,
35 ClickEvent, ClipboardItem, ContentMask, Corner, Corners, CursorStyle, DispatchPhase, Edges,
36 Element, ElementInputHandler, Entity, FontId, GlobalElementId, Hitbox, Hsla,
37 InteractiveElement, IntoElement, Length, ModifiersChangedEvent, MouseButton, MouseDownEvent,
38 MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta, ScrollWheelEvent,
39 ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled, Subscription,
40 TextRun, TextStyleRefinement, View, ViewContext, WeakView, WindowContext,
41};
42use itertools::Itertools;
43use language::{
44 language_settings::{
45 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
46 ShowWhitespaceSetting,
47 },
48 ChunkRendererContext, DiagnosticEntry,
49};
50use lsp::DiagnosticSeverity;
51use multi_buffer::{
52 Anchor, AnchorRangeExt, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint,
53 MultiBufferRow, MultiBufferSnapshot, ToOffset,
54};
55use project::project_settings::{GitGutterSetting, ProjectSettings};
56use settings::Settings;
57use smallvec::{smallvec, SmallVec};
58use std::{
59 any::TypeId,
60 borrow::Cow,
61 cmp::{self, Ordering},
62 fmt::{self, Write},
63 iter, mem,
64 ops::{Deref, Range},
65 rc::Rc,
66 sync::Arc,
67};
68use sum_tree::Bias;
69use text::BufferId;
70use theme::{ActiveTheme, Appearance, PlayerColor};
71use ui::{
72 prelude::*, ButtonLike, ButtonStyle, ContextMenu, KeyBinding, Tooltip, POPOVER_Y_PADDING,
73};
74use unicode_segmentation::UnicodeSegmentation;
75use util::{RangeExt, ResultExt};
76use workspace::{item::Item, notifications::NotifyTaskExt, Workspace};
77
78struct SelectionLayout {
79 head: DisplayPoint,
80 cursor_shape: CursorShape,
81 is_newest: bool,
82 is_local: bool,
83 range: Range<DisplayPoint>,
84 active_rows: Range<DisplayRow>,
85 user_name: Option<SharedString>,
86}
87
88impl SelectionLayout {
89 fn new<T: ToPoint + ToDisplayPoint + Clone>(
90 selection: Selection<T>,
91 line_mode: bool,
92 cursor_shape: CursorShape,
93 map: &DisplaySnapshot,
94 is_newest: bool,
95 is_local: bool,
96 user_name: Option<SharedString>,
97 ) -> Self {
98 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
99 let display_selection = point_selection.map(|p| p.to_display_point(map));
100 let mut range = display_selection.range();
101 let mut head = display_selection.head();
102 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
103 ..map.next_line_boundary(point_selection.end).1.row();
104
105 // vim visual line mode
106 if line_mode {
107 let point_range = map.expand_to_line(point_selection.range());
108 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
109 }
110
111 // any vim visual mode (including line mode)
112 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
113 && !range.is_empty()
114 && !selection.reversed
115 {
116 if head.column() > 0 {
117 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
118 } else if head.row().0 > 0 && head != map.max_point() {
119 head = map.clip_point(
120 DisplayPoint::new(
121 head.row().previous_row(),
122 map.line_len(head.row().previous_row()),
123 ),
124 Bias::Left,
125 );
126 // updating range.end is a no-op unless you're cursor is
127 // on the newline containing a multi-buffer divider
128 // in which case the clip_point may have moved the head up
129 // an additional row.
130 range.end = DisplayPoint::new(head.row().next_row(), 0);
131 active_rows.end = head.row();
132 }
133 }
134
135 Self {
136 head,
137 cursor_shape,
138 is_newest,
139 is_local,
140 range,
141 active_rows,
142 user_name,
143 }
144 }
145}
146
147pub struct EditorElement {
148 editor: View<Editor>,
149 style: EditorStyle,
150}
151
152type DisplayRowDelta = u32;
153
154impl EditorElement {
155 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
156
157 pub fn new(editor: &View<Editor>, style: EditorStyle) -> Self {
158 Self {
159 editor: editor.clone(),
160 style,
161 }
162 }
163
164 fn register_actions(&self, cx: &mut WindowContext) {
165 let view = &self.editor;
166 view.update(cx, |editor, cx| {
167 for action in editor.editor_actions.borrow().values() {
168 (action)(cx)
169 }
170 });
171
172 crate::rust_analyzer_ext::apply_related_actions(view, cx);
173 crate::clangd_ext::apply_related_actions(view, cx);
174 register_action(view, cx, Editor::open_context_menu);
175 register_action(view, cx, Editor::move_left);
176 register_action(view, cx, Editor::move_right);
177 register_action(view, cx, Editor::move_down);
178 register_action(view, cx, Editor::move_down_by_lines);
179 register_action(view, cx, Editor::select_down_by_lines);
180 register_action(view, cx, Editor::move_up);
181 register_action(view, cx, Editor::move_up_by_lines);
182 register_action(view, cx, Editor::select_up_by_lines);
183 register_action(view, cx, Editor::select_page_down);
184 register_action(view, cx, Editor::select_page_up);
185 register_action(view, cx, Editor::cancel);
186 register_action(view, cx, Editor::newline);
187 register_action(view, cx, Editor::newline_above);
188 register_action(view, cx, Editor::newline_below);
189 register_action(view, cx, Editor::backspace);
190 register_action(view, cx, Editor::delete);
191 register_action(view, cx, Editor::tab);
192 register_action(view, cx, Editor::tab_prev);
193 register_action(view, cx, Editor::indent);
194 register_action(view, cx, Editor::outdent);
195 register_action(view, cx, Editor::autoindent);
196 register_action(view, cx, Editor::delete_line);
197 register_action(view, cx, Editor::join_lines);
198 register_action(view, cx, Editor::sort_lines_case_sensitive);
199 register_action(view, cx, Editor::sort_lines_case_insensitive);
200 register_action(view, cx, Editor::reverse_lines);
201 register_action(view, cx, Editor::shuffle_lines);
202 register_action(view, cx, Editor::convert_to_upper_case);
203 register_action(view, cx, Editor::convert_to_lower_case);
204 register_action(view, cx, Editor::convert_to_title_case);
205 register_action(view, cx, Editor::convert_to_snake_case);
206 register_action(view, cx, Editor::convert_to_kebab_case);
207 register_action(view, cx, Editor::convert_to_upper_camel_case);
208 register_action(view, cx, Editor::convert_to_lower_camel_case);
209 register_action(view, cx, Editor::convert_to_opposite_case);
210 register_action(view, cx, Editor::delete_to_previous_word_start);
211 register_action(view, cx, Editor::delete_to_previous_subword_start);
212 register_action(view, cx, Editor::delete_to_next_word_end);
213 register_action(view, cx, Editor::delete_to_next_subword_end);
214 register_action(view, cx, Editor::delete_to_beginning_of_line);
215 register_action(view, cx, Editor::delete_to_end_of_line);
216 register_action(view, cx, Editor::cut_to_end_of_line);
217 register_action(view, cx, Editor::duplicate_line_up);
218 register_action(view, cx, Editor::duplicate_line_down);
219 register_action(view, cx, Editor::duplicate_selection);
220 register_action(view, cx, Editor::move_line_up);
221 register_action(view, cx, Editor::move_line_down);
222 register_action(view, cx, Editor::transpose);
223 register_action(view, cx, Editor::rewrap);
224 register_action(view, cx, Editor::cut);
225 register_action(view, cx, Editor::kill_ring_cut);
226 register_action(view, cx, Editor::kill_ring_yank);
227 register_action(view, cx, Editor::copy);
228 register_action(view, cx, Editor::paste);
229 register_action(view, cx, Editor::undo);
230 register_action(view, cx, Editor::redo);
231 register_action(view, cx, Editor::move_page_up);
232 register_action(view, cx, Editor::move_page_down);
233 register_action(view, cx, Editor::next_screen);
234 register_action(view, cx, Editor::scroll_cursor_top);
235 register_action(view, cx, Editor::scroll_cursor_center);
236 register_action(view, cx, Editor::scroll_cursor_bottom);
237 register_action(view, cx, Editor::scroll_cursor_center_top_bottom);
238 register_action(view, cx, |editor, _: &LineDown, cx| {
239 editor.scroll_screen(&ScrollAmount::Line(1.), cx)
240 });
241 register_action(view, cx, |editor, _: &LineUp, cx| {
242 editor.scroll_screen(&ScrollAmount::Line(-1.), cx)
243 });
244 register_action(view, cx, |editor, _: &HalfPageDown, cx| {
245 editor.scroll_screen(&ScrollAmount::Page(0.5), cx)
246 });
247 register_action(view, cx, |editor, HandleInput(text): &HandleInput, cx| {
248 if text.is_empty() {
249 return;
250 }
251 editor.handle_input(text, cx);
252 });
253 register_action(view, cx, |editor, _: &HalfPageUp, cx| {
254 editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
255 });
256 register_action(view, cx, |editor, _: &PageDown, cx| {
257 editor.scroll_screen(&ScrollAmount::Page(1.), cx)
258 });
259 register_action(view, cx, |editor, _: &PageUp, cx| {
260 editor.scroll_screen(&ScrollAmount::Page(-1.), cx)
261 });
262 register_action(view, cx, Editor::move_to_previous_word_start);
263 register_action(view, cx, Editor::move_to_previous_subword_start);
264 register_action(view, cx, Editor::move_to_next_word_end);
265 register_action(view, cx, Editor::move_to_next_subword_end);
266 register_action(view, cx, Editor::move_to_beginning_of_line);
267 register_action(view, cx, Editor::move_to_end_of_line);
268 register_action(view, cx, Editor::move_to_start_of_paragraph);
269 register_action(view, cx, Editor::move_to_end_of_paragraph);
270 register_action(view, cx, Editor::move_to_beginning);
271 register_action(view, cx, Editor::move_to_end);
272 register_action(view, cx, Editor::select_up);
273 register_action(view, cx, Editor::select_down);
274 register_action(view, cx, Editor::select_left);
275 register_action(view, cx, Editor::select_right);
276 register_action(view, cx, Editor::select_to_previous_word_start);
277 register_action(view, cx, Editor::select_to_previous_subword_start);
278 register_action(view, cx, Editor::select_to_next_word_end);
279 register_action(view, cx, Editor::select_to_next_subword_end);
280 register_action(view, cx, Editor::select_to_beginning_of_line);
281 register_action(view, cx, Editor::select_to_end_of_line);
282 register_action(view, cx, Editor::select_to_start_of_paragraph);
283 register_action(view, cx, Editor::select_to_end_of_paragraph);
284 register_action(view, cx, Editor::select_to_beginning);
285 register_action(view, cx, Editor::select_to_end);
286 register_action(view, cx, Editor::select_all);
287 register_action(view, cx, |editor, action, cx| {
288 editor.select_all_matches(action, cx).log_err();
289 });
290 register_action(view, cx, Editor::select_line);
291 register_action(view, cx, Editor::split_selection_into_lines);
292 register_action(view, cx, Editor::add_selection_above);
293 register_action(view, cx, Editor::add_selection_below);
294 register_action(view, cx, |editor, action, cx| {
295 editor.select_next(action, cx).log_err();
296 });
297 register_action(view, cx, |editor, action, cx| {
298 editor.select_previous(action, cx).log_err();
299 });
300 register_action(view, cx, Editor::toggle_comments);
301 register_action(view, cx, Editor::select_larger_syntax_node);
302 register_action(view, cx, Editor::select_smaller_syntax_node);
303 register_action(view, cx, Editor::select_enclosing_symbol);
304 register_action(view, cx, Editor::move_to_enclosing_bracket);
305 register_action(view, cx, Editor::undo_selection);
306 register_action(view, cx, Editor::redo_selection);
307 if !view.read(cx).is_singleton(cx) {
308 register_action(view, cx, Editor::expand_excerpts);
309 register_action(view, cx, Editor::expand_excerpts_up);
310 register_action(view, cx, Editor::expand_excerpts_down);
311 }
312 register_action(view, cx, Editor::go_to_diagnostic);
313 register_action(view, cx, Editor::go_to_prev_diagnostic);
314 register_action(view, cx, Editor::go_to_next_hunk);
315 register_action(view, cx, Editor::go_to_prev_hunk);
316 register_action(view, cx, |editor, a, cx| {
317 editor.go_to_definition(a, cx).detach_and_log_err(cx);
318 });
319 register_action(view, cx, |editor, a, cx| {
320 editor.go_to_definition_split(a, cx).detach_and_log_err(cx);
321 });
322 register_action(view, cx, |editor, a, cx| {
323 editor.go_to_declaration(a, cx).detach_and_log_err(cx);
324 });
325 register_action(view, cx, |editor, a, cx| {
326 editor.go_to_declaration_split(a, cx).detach_and_log_err(cx);
327 });
328 register_action(view, cx, |editor, a, cx| {
329 editor.go_to_implementation(a, cx).detach_and_log_err(cx);
330 });
331 register_action(view, cx, |editor, a, cx| {
332 editor
333 .go_to_implementation_split(a, cx)
334 .detach_and_log_err(cx);
335 });
336 register_action(view, cx, |editor, a, cx| {
337 editor.go_to_type_definition(a, cx).detach_and_log_err(cx);
338 });
339 register_action(view, cx, |editor, a, cx| {
340 editor
341 .go_to_type_definition_split(a, cx)
342 .detach_and_log_err(cx);
343 });
344 register_action(view, cx, Editor::open_url);
345 register_action(view, cx, Editor::open_selected_filename);
346 register_action(view, cx, Editor::fold);
347 register_action(view, cx, Editor::fold_at_level);
348 register_action(view, cx, Editor::fold_all);
349 register_action(view, cx, Editor::fold_function_bodies);
350 register_action(view, cx, Editor::fold_at);
351 register_action(view, cx, Editor::fold_recursive);
352 register_action(view, cx, Editor::toggle_fold);
353 register_action(view, cx, Editor::toggle_fold_recursive);
354 register_action(view, cx, Editor::unfold_lines);
355 register_action(view, cx, Editor::unfold_recursive);
356 register_action(view, cx, Editor::unfold_all);
357 register_action(view, cx, Editor::unfold_at);
358 register_action(view, cx, Editor::fold_selected_ranges);
359 register_action(view, cx, Editor::set_mark);
360 register_action(view, cx, Editor::swap_selection_ends);
361 register_action(view, cx, Editor::show_completions);
362 register_action(view, cx, Editor::toggle_code_actions);
363 register_action(view, cx, Editor::open_excerpts);
364 register_action(view, cx, Editor::open_excerpts_in_split);
365 register_action(view, cx, Editor::open_proposed_changes_editor);
366 register_action(view, cx, Editor::toggle_soft_wrap);
367 register_action(view, cx, Editor::toggle_tab_bar);
368 register_action(view, cx, Editor::toggle_line_numbers);
369 register_action(view, cx, Editor::toggle_relative_line_numbers);
370 register_action(view, cx, Editor::toggle_indent_guides);
371 register_action(view, cx, Editor::toggle_inlay_hints);
372 register_action(view, cx, Editor::toggle_inline_completions);
373 register_action(view, cx, hover_popover::hover);
374 register_action(view, cx, Editor::reveal_in_finder);
375 register_action(view, cx, Editor::copy_path);
376 register_action(view, cx, Editor::copy_relative_path);
377 register_action(view, cx, Editor::copy_highlight_json);
378 register_action(view, cx, Editor::copy_permalink_to_line);
379 register_action(view, cx, Editor::open_permalink_to_line);
380 register_action(view, cx, Editor::copy_file_location);
381 register_action(view, cx, Editor::toggle_git_blame);
382 register_action(view, cx, Editor::toggle_git_blame_inline);
383 register_action(view, cx, Editor::toggle_hunk_diff);
384 register_action(view, cx, Editor::expand_all_hunk_diffs);
385 register_action(view, cx, |editor, action, cx| {
386 if let Some(task) = editor.format(action, cx) {
387 task.detach_and_notify_err(cx);
388 } else {
389 cx.propagate();
390 }
391 });
392 register_action(view, cx, |editor, action, cx| {
393 if let Some(task) = editor.format_selections(action, cx) {
394 task.detach_and_notify_err(cx);
395 } else {
396 cx.propagate();
397 }
398 });
399 register_action(view, cx, Editor::restart_language_server);
400 register_action(view, cx, Editor::cancel_language_server_work);
401 register_action(view, cx, Editor::show_character_palette);
402 register_action(view, cx, |editor, action, cx| {
403 if let Some(task) = editor.confirm_completion(action, cx) {
404 task.detach_and_notify_err(cx);
405 } else {
406 cx.propagate();
407 }
408 });
409 register_action(view, cx, |editor, action, cx| {
410 if let Some(task) = editor.compose_completion(action, cx) {
411 task.detach_and_notify_err(cx);
412 } else {
413 cx.propagate();
414 }
415 });
416 register_action(view, cx, |editor, action, cx| {
417 if let Some(task) = editor.confirm_code_action(action, cx) {
418 task.detach_and_notify_err(cx);
419 } else {
420 cx.propagate();
421 }
422 });
423 register_action(view, cx, |editor, action, cx| {
424 if let Some(task) = editor.rename(action, cx) {
425 task.detach_and_notify_err(cx);
426 } else {
427 cx.propagate();
428 }
429 });
430 register_action(view, cx, |editor, action, cx| {
431 if let Some(task) = editor.confirm_rename(action, cx) {
432 task.detach_and_notify_err(cx);
433 } else {
434 cx.propagate();
435 }
436 });
437 register_action(view, cx, |editor, action, cx| {
438 if let Some(task) = editor.find_all_references(action, cx) {
439 task.detach_and_log_err(cx);
440 } else {
441 cx.propagate();
442 }
443 });
444 register_action(view, cx, Editor::show_signature_help);
445 register_action(view, cx, Editor::next_inline_completion);
446 register_action(view, cx, Editor::previous_inline_completion);
447 register_action(view, cx, Editor::show_inline_completion);
448 register_action(view, cx, Editor::context_menu_first);
449 register_action(view, cx, Editor::context_menu_prev);
450 register_action(view, cx, Editor::context_menu_next);
451 register_action(view, cx, Editor::context_menu_last);
452 register_action(view, cx, Editor::display_cursor_names);
453 register_action(view, cx, Editor::unique_lines_case_insensitive);
454 register_action(view, cx, Editor::unique_lines_case_sensitive);
455 register_action(view, cx, Editor::accept_partial_inline_completion);
456 register_action(view, cx, Editor::accept_inline_completion);
457 register_action(view, cx, Editor::revert_file);
458 register_action(view, cx, Editor::revert_selected_hunks);
459 register_action(view, cx, Editor::apply_all_diff_hunks);
460 register_action(view, cx, Editor::apply_selected_diff_hunks);
461 register_action(view, cx, Editor::open_active_item_in_terminal);
462 register_action(view, cx, Editor::reload_file);
463 register_action(view, cx, Editor::spawn_nearest_task);
464 register_action(view, cx, Editor::insert_uuid_v4);
465 register_action(view, cx, Editor::insert_uuid_v7);
466 }
467
468 fn register_key_listeners(&self, cx: &mut WindowContext, layout: &EditorLayout) {
469 let position_map = layout.position_map.clone();
470 cx.on_key_event({
471 let editor = self.editor.clone();
472 let text_hitbox = layout.text_hitbox.clone();
473 move |event: &ModifiersChangedEvent, phase, cx| {
474 if phase != DispatchPhase::Bubble {
475 return;
476 }
477 editor.update(cx, |editor, cx| {
478 if editor.hover_state.focused(cx) {
479 return;
480 }
481 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, cx)
482 })
483 }
484 });
485 }
486
487 fn modifiers_changed(
488 editor: &mut Editor,
489 event: &ModifiersChangedEvent,
490 position_map: &PositionMap,
491 text_hitbox: &Hitbox,
492 cx: &mut ViewContext<Editor>,
493 ) {
494 let mouse_position = cx.mouse_position();
495 if !text_hitbox.is_hovered(cx) {
496 return;
497 }
498
499 editor.update_hovered_link(
500 position_map.point_for_position(text_hitbox.bounds, mouse_position),
501 &position_map.snapshot,
502 event.modifiers,
503 cx,
504 )
505 }
506
507 #[allow(clippy::too_many_arguments)]
508 fn mouse_left_down(
509 editor: &mut Editor,
510 event: &MouseDownEvent,
511 hovered_hunk: Option<HoveredHunk>,
512 position_map: &PositionMap,
513 text_hitbox: &Hitbox,
514 gutter_hitbox: &Hitbox,
515 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
516 cx: &mut ViewContext<Editor>,
517 ) {
518 if cx.default_prevented() {
519 return;
520 }
521
522 let mut click_count = event.click_count;
523 let mut modifiers = event.modifiers;
524
525 if let Some(hovered_hunk) = hovered_hunk {
526 editor.toggle_hovered_hunk(&hovered_hunk, cx);
527 cx.notify();
528 return;
529 } else if gutter_hitbox.is_hovered(cx) {
530 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
531 } else if !text_hitbox.is_hovered(cx) {
532 return;
533 }
534
535 let is_singleton = editor.buffer().read(cx).is_singleton();
536
537 if click_count == 2 && !is_singleton {
538 match EditorSettings::get_global(cx).double_click_in_multibuffer {
539 DoubleClickInMultibuffer::Select => {
540 // do nothing special on double click, all selection logic is below
541 }
542 DoubleClickInMultibuffer::Open => {
543 if modifiers.alt {
544 // if double click is made with alt, pretend it's a regular double click without opening and alt,
545 // and run the selection logic.
546 modifiers.alt = false;
547 } else {
548 let scroll_position_row =
549 position_map.scroll_pixel_position.y / position_map.line_height;
550 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
551 + position_map.scroll_pixel_position.y)
552 / position_map.line_height)
553 as u32;
554 let multi_buffer_row = position_map
555 .snapshot
556 .display_point_to_point(
557 DisplayPoint::new(DisplayRow(display_row), 0),
558 Bias::Right,
559 )
560 .row;
561 let line_offset_from_top = display_row - scroll_position_row as u32;
562 // if double click is made without alt, open the corresponding excerp
563 editor.open_excerpts_common(
564 Some(JumpData::MultiBufferRow {
565 row: MultiBufferRow(multi_buffer_row),
566 line_offset_from_top,
567 }),
568 false,
569 cx,
570 );
571 return;
572 }
573 }
574 }
575 }
576
577 let point_for_position =
578 position_map.point_for_position(text_hitbox.bounds, event.position);
579 let position = point_for_position.previous_valid;
580 if modifiers.shift && modifiers.alt {
581 editor.select(
582 SelectPhase::BeginColumnar {
583 position,
584 reset: false,
585 goal_column: point_for_position.exact_unclipped.column(),
586 },
587 cx,
588 );
589 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
590 {
591 editor.select(
592 SelectPhase::Extend {
593 position,
594 click_count,
595 },
596 cx,
597 );
598 } else {
599 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
600 let multi_cursor_modifier = match multi_cursor_setting {
601 MultiCursorModifier::Alt => modifiers.alt,
602 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
603 };
604 editor.select(
605 SelectPhase::Begin {
606 position,
607 add: multi_cursor_modifier,
608 click_count,
609 },
610 cx,
611 );
612 }
613 cx.stop_propagation();
614
615 if !is_singleton {
616 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
617 + position_map.scroll_pixel_position.y)
618 / position_map.line_height) as u32;
619 let multi_buffer_row = position_map
620 .snapshot
621 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
622 .row;
623 if line_numbers
624 .get(&MultiBufferRow(multi_buffer_row))
625 .and_then(|line_number| line_number.hitbox.as_ref())
626 .is_some_and(|hitbox| hitbox.contains(&event.position))
627 {
628 let scroll_position_row =
629 position_map.scroll_pixel_position.y / position_map.line_height;
630 let line_offset_from_top = display_row - scroll_position_row as u32;
631
632 editor.open_excerpts_common(
633 Some(JumpData::MultiBufferRow {
634 row: MultiBufferRow(multi_buffer_row),
635 line_offset_from_top,
636 }),
637 modifiers.alt,
638 cx,
639 );
640 cx.stop_propagation();
641 }
642 }
643 }
644
645 fn mouse_right_down(
646 editor: &mut Editor,
647 event: &MouseDownEvent,
648 position_map: &PositionMap,
649 text_hitbox: &Hitbox,
650 cx: &mut ViewContext<Editor>,
651 ) {
652 if !text_hitbox.is_hovered(cx) {
653 return;
654 }
655 let point_for_position =
656 position_map.point_for_position(text_hitbox.bounds, event.position);
657 mouse_context_menu::deploy_context_menu(
658 editor,
659 Some(event.position),
660 point_for_position.previous_valid,
661 cx,
662 );
663 cx.stop_propagation();
664 }
665
666 fn mouse_middle_down(
667 editor: &mut Editor,
668 event: &MouseDownEvent,
669 position_map: &PositionMap,
670 text_hitbox: &Hitbox,
671 cx: &mut ViewContext<Editor>,
672 ) {
673 if !text_hitbox.is_hovered(cx) || cx.default_prevented() {
674 return;
675 }
676
677 let point_for_position =
678 position_map.point_for_position(text_hitbox.bounds, event.position);
679 let position = point_for_position.previous_valid;
680
681 editor.select(
682 SelectPhase::BeginColumnar {
683 position,
684 reset: true,
685 goal_column: point_for_position.exact_unclipped.column(),
686 },
687 cx,
688 );
689 }
690
691 fn mouse_up(
692 editor: &mut Editor,
693 event: &MouseUpEvent,
694 position_map: &PositionMap,
695 text_hitbox: &Hitbox,
696 cx: &mut ViewContext<Editor>,
697 ) {
698 let end_selection = editor.has_pending_selection();
699 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
700
701 if end_selection {
702 editor.select(SelectPhase::End, cx);
703 }
704
705 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
706 let multi_cursor_modifier = match multi_cursor_setting {
707 MultiCursorModifier::Alt => event.modifiers.secondary(),
708 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
709 };
710
711 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(cx) {
712 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
713 editor.handle_click_hovered_link(point, event.modifiers, cx);
714
715 cx.stop_propagation();
716 } else if end_selection && pending_nonempty_selections {
717 cx.stop_propagation();
718 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
719 && event.button == MouseButton::Middle
720 {
721 if !text_hitbox.is_hovered(cx) || editor.read_only(cx) {
722 return;
723 }
724
725 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
726 if EditorSettings::get_global(cx).middle_click_paste {
727 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
728 let point_for_position =
729 position_map.point_for_position(text_hitbox.bounds, event.position);
730 let position = point_for_position.previous_valid;
731
732 editor.select(
733 SelectPhase::Begin {
734 position,
735 add: false,
736 click_count: 1,
737 },
738 cx,
739 );
740 editor.insert(&text, cx);
741 }
742 cx.stop_propagation()
743 }
744 }
745 }
746
747 fn mouse_dragged(
748 editor: &mut Editor,
749 event: &MouseMoveEvent,
750 position_map: &PositionMap,
751 text_bounds: Bounds<Pixels>,
752 cx: &mut ViewContext<Editor>,
753 ) {
754 if !editor.has_pending_selection() {
755 return;
756 }
757
758 let point_for_position = position_map.point_for_position(text_bounds, event.position);
759 let mut scroll_delta = gpui::Point::<f32>::default();
760 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
761 let top = text_bounds.origin.y + vertical_margin;
762 let bottom = text_bounds.bottom_left().y - vertical_margin;
763 if event.position.y < top {
764 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
765 }
766 if event.position.y > bottom {
767 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
768 }
769
770 // We need horizontal width of text
771 let style = editor.style.clone().unwrap_or_default();
772 let font_id = cx.text_system().resolve_font(&style.text.font());
773 let font_size = style.text.font_size.to_pixels(cx.rem_size());
774 let em_width = cx
775 .text_system()
776 .typographic_bounds(font_id, font_size, 'm')
777 .unwrap()
778 .size
779 .width;
780
781 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
782
783 let scroll_space: Pixels = scroll_margin_x * em_width;
784
785 let left = text_bounds.origin.x + scroll_space;
786 let right = text_bounds.top_right().x - scroll_space;
787
788 if event.position.x < left {
789 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
790 }
791 if event.position.x > right {
792 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
793 }
794
795 editor.select(
796 SelectPhase::Update {
797 position: point_for_position.previous_valid,
798 goal_column: point_for_position.exact_unclipped.column(),
799 scroll_delta,
800 },
801 cx,
802 );
803 }
804
805 fn mouse_moved(
806 editor: &mut Editor,
807 event: &MouseMoveEvent,
808 position_map: &PositionMap,
809 text_hitbox: &Hitbox,
810 gutter_hitbox: &Hitbox,
811 cx: &mut ViewContext<Editor>,
812 ) {
813 let modifiers = event.modifiers;
814 let gutter_hovered = gutter_hitbox.is_hovered(cx);
815 editor.set_gutter_hovered(gutter_hovered, cx);
816
817 // Don't trigger hover popover if mouse is hovering over context menu
818 if text_hitbox.is_hovered(cx) {
819 let point_for_position =
820 position_map.point_for_position(text_hitbox.bounds, event.position);
821
822 editor.update_hovered_link(point_for_position, &position_map.snapshot, modifiers, cx);
823
824 if let Some(point) = point_for_position.as_valid() {
825 let anchor = position_map
826 .snapshot
827 .buffer_snapshot
828 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
829 hover_at(editor, Some(anchor), cx);
830 Self::update_visible_cursor(editor, point, position_map, cx);
831 } else {
832 hover_at(editor, None, cx);
833 }
834 } else {
835 editor.hide_hovered_link(cx);
836 hover_at(editor, None, cx);
837 if gutter_hovered {
838 cx.stop_propagation();
839 }
840 }
841 }
842
843 fn update_visible_cursor(
844 editor: &mut Editor,
845 point: DisplayPoint,
846 position_map: &PositionMap,
847 cx: &mut ViewContext<Editor>,
848 ) {
849 let snapshot = &position_map.snapshot;
850 let Some(hub) = editor.collaboration_hub() else {
851 return;
852 };
853 let start = snapshot.display_snapshot.clip_point(
854 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
855 Bias::Left,
856 );
857 let end = snapshot.display_snapshot.clip_point(
858 DisplayPoint::new(
859 point.row(),
860 (point.column() + 1).min(snapshot.line_len(point.row())),
861 ),
862 Bias::Right,
863 );
864
865 let range = snapshot
866 .buffer_snapshot
867 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
868 ..snapshot
869 .buffer_snapshot
870 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
871
872 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
873 return;
874 };
875 let key = crate::HoveredCursor {
876 replica_id: selection.replica_id,
877 selection_id: selection.selection.id,
878 };
879 editor.hovered_cursors.insert(
880 key.clone(),
881 cx.spawn(|editor, mut cx| async move {
882 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
883 editor
884 .update(&mut cx, |editor, cx| {
885 editor.hovered_cursors.remove(&key);
886 cx.notify();
887 })
888 .ok();
889 }),
890 );
891 cx.notify()
892 }
893
894 #[allow(clippy::too_many_arguments)]
895 fn layout_selections(
896 &self,
897 start_anchor: Anchor,
898 end_anchor: Anchor,
899 local_selections: &[Selection<Point>],
900 snapshot: &EditorSnapshot,
901 start_row: DisplayRow,
902 end_row: DisplayRow,
903 cx: &mut WindowContext,
904 ) -> (
905 Vec<(PlayerColor, Vec<SelectionLayout>)>,
906 BTreeMap<DisplayRow, bool>,
907 Option<DisplayPoint>,
908 ) {
909 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
910 let mut active_rows = BTreeMap::new();
911 let mut newest_selection_head = None;
912 self.editor.update(cx, |editor, cx| {
913 if editor.show_local_selections {
914 let mut layouts = Vec::new();
915 let newest = editor.selections.newest(cx);
916 for selection in local_selections.iter().cloned() {
917 let is_empty = selection.start == selection.end;
918 let is_newest = selection == newest;
919
920 let layout = SelectionLayout::new(
921 selection,
922 editor.selections.line_mode,
923 editor.cursor_shape,
924 &snapshot.display_snapshot,
925 is_newest,
926 editor.leader_peer_id.is_none(),
927 None,
928 );
929 if is_newest {
930 newest_selection_head = Some(layout.head);
931 }
932
933 for row in cmp::max(layout.active_rows.start.0, start_row.0)
934 ..=cmp::min(layout.active_rows.end.0, end_row.0)
935 {
936 let contains_non_empty_selection =
937 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
938 *contains_non_empty_selection |= !is_empty;
939 }
940 layouts.push(layout);
941 }
942
943 let player = if editor.read_only(cx) {
944 cx.theme().players().read_only()
945 } else {
946 self.style.local_player
947 };
948
949 selections.push((player, layouts));
950 }
951
952 if let Some(collaboration_hub) = &editor.collaboration_hub {
953 // When following someone, render the local selections in their color.
954 if let Some(leader_id) = editor.leader_peer_id {
955 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
956 {
957 if let Some(participant_index) = collaboration_hub
958 .user_participant_indices(cx)
959 .get(&collaborator.user_id)
960 {
961 if let Some((local_selection_style, _)) = selections.first_mut() {
962 *local_selection_style = cx
963 .theme()
964 .players()
965 .color_for_participant(participant_index.0);
966 }
967 }
968 }
969 }
970
971 let mut remote_selections = HashMap::default();
972 for selection in snapshot.remote_selections_in_range(
973 &(start_anchor..end_anchor),
974 collaboration_hub.as_ref(),
975 cx,
976 ) {
977 let selection_style =
978 Self::get_participant_color(selection.participant_index, cx);
979
980 // Don't re-render the leader's selections, since the local selections
981 // match theirs.
982 if Some(selection.peer_id) == editor.leader_peer_id {
983 continue;
984 }
985 let key = HoveredCursor {
986 replica_id: selection.replica_id,
987 selection_id: selection.selection.id,
988 };
989
990 let is_shown =
991 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
992
993 remote_selections
994 .entry(selection.replica_id)
995 .or_insert((selection_style, Vec::new()))
996 .1
997 .push(SelectionLayout::new(
998 selection.selection,
999 selection.line_mode,
1000 selection.cursor_shape,
1001 &snapshot.display_snapshot,
1002 false,
1003 false,
1004 if is_shown { selection.user_name } else { None },
1005 ));
1006 }
1007
1008 selections.extend(remote_selections.into_values());
1009 } else if !editor.is_focused(cx) && editor.show_cursor_when_unfocused {
1010 let player = if editor.read_only(cx) {
1011 cx.theme().players().read_only()
1012 } else {
1013 self.style.local_player
1014 };
1015 let layouts = snapshot
1016 .buffer_snapshot
1017 .selections_in_range(&(start_anchor..end_anchor), true)
1018 .map(move |(_, line_mode, cursor_shape, selection)| {
1019 SelectionLayout::new(
1020 selection,
1021 line_mode,
1022 cursor_shape,
1023 &snapshot.display_snapshot,
1024 false,
1025 false,
1026 None,
1027 )
1028 })
1029 .collect::<Vec<_>>();
1030 selections.push((player, layouts));
1031 }
1032 });
1033 (selections, active_rows, newest_selection_head)
1034 }
1035
1036 fn collect_cursors(
1037 &self,
1038 snapshot: &EditorSnapshot,
1039 cx: &mut WindowContext,
1040 ) -> Vec<(DisplayPoint, Hsla)> {
1041 let editor = self.editor.read(cx);
1042 let mut cursors = Vec::new();
1043 let mut skip_local = false;
1044 let mut add_cursor = |anchor: Anchor, color| {
1045 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1046 };
1047 // Remote cursors
1048 if let Some(collaboration_hub) = &editor.collaboration_hub {
1049 for remote_selection in snapshot.remote_selections_in_range(
1050 &(Anchor::min()..Anchor::max()),
1051 collaboration_hub.deref(),
1052 cx,
1053 ) {
1054 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1055 add_cursor(remote_selection.selection.head(), color.cursor);
1056 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1057 skip_local = true;
1058 }
1059 }
1060 }
1061 // Local cursors
1062 if !skip_local {
1063 let color = cx.theme().players().local().cursor;
1064 editor.selections.disjoint.iter().for_each(|selection| {
1065 add_cursor(selection.head(), color);
1066 });
1067 if let Some(ref selection) = editor.selections.pending_anchor() {
1068 add_cursor(selection.head(), color);
1069 }
1070 }
1071 cursors
1072 }
1073
1074 #[allow(clippy::too_many_arguments)]
1075 fn layout_visible_cursors(
1076 &self,
1077 snapshot: &EditorSnapshot,
1078 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1079 block_start_rows: &HashSet<DisplayRow>,
1080 visible_display_row_range: Range<DisplayRow>,
1081 line_layouts: &[LineWithInvisibles],
1082 text_hitbox: &Hitbox,
1083 content_origin: gpui::Point<Pixels>,
1084 scroll_position: gpui::Point<f32>,
1085 scroll_pixel_position: gpui::Point<Pixels>,
1086 line_height: Pixels,
1087 em_width: Pixels,
1088 em_advance: Pixels,
1089 autoscroll_containing_element: bool,
1090 cx: &mut WindowContext,
1091 ) -> Vec<CursorLayout> {
1092 let mut autoscroll_bounds = None;
1093 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1094 let mut cursors = Vec::new();
1095 for (player_color, selections) in selections {
1096 for selection in selections {
1097 let cursor_position = selection.head;
1098
1099 let in_range = visible_display_row_range.contains(&cursor_position.row());
1100 if (selection.is_local && !editor.show_local_cursors(cx))
1101 || !in_range
1102 || block_start_rows.contains(&cursor_position.row())
1103 {
1104 continue;
1105 }
1106
1107 let cursor_row_layout = &line_layouts
1108 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1109 let cursor_column = cursor_position.column() as usize;
1110
1111 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1112 let mut block_width =
1113 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1114 if block_width == Pixels::ZERO {
1115 block_width = em_advance;
1116 }
1117 let block_text = if let CursorShape::Block = selection.cursor_shape {
1118 snapshot
1119 .grapheme_at(cursor_position)
1120 .or_else(|| {
1121 if cursor_column == 0 {
1122 snapshot.placeholder_text().and_then(|s| {
1123 s.graphemes(true).next().map(|s| s.to_string().into())
1124 })
1125 } else {
1126 None
1127 }
1128 })
1129 .and_then(|text| {
1130 let len = text.len();
1131
1132 let font = cursor_row_layout
1133 .font_id_for_index(cursor_column)
1134 .and_then(|cursor_font_id| {
1135 cx.text_system().get_font_for_id(cursor_font_id)
1136 })
1137 .unwrap_or(self.style.text.font());
1138
1139 // Invert the text color for the block cursor. Ensure that the text
1140 // color is opaque enough to be visible against the background color.
1141 //
1142 // 0.75 is an arbitrary threshold to determine if the background color is
1143 // opaque enough to use as a text color.
1144 //
1145 // TODO: In the future we should ensure themes have a `text_inverse` color.
1146 let color = if cx.theme().colors().editor_background.a < 0.75 {
1147 match cx.theme().appearance {
1148 Appearance::Dark => Hsla::black(),
1149 Appearance::Light => Hsla::white(),
1150 }
1151 } else {
1152 cx.theme().colors().editor_background
1153 };
1154
1155 cx.text_system()
1156 .shape_line(
1157 text,
1158 cursor_row_layout.font_size,
1159 &[TextRun {
1160 len,
1161 font,
1162 color,
1163 background_color: None,
1164 strikethrough: None,
1165 underline: None,
1166 }],
1167 )
1168 .log_err()
1169 })
1170 } else {
1171 None
1172 };
1173
1174 let x = cursor_character_x - scroll_pixel_position.x;
1175 let y = (cursor_position.row().as_f32()
1176 - scroll_pixel_position.y / line_height)
1177 * line_height;
1178 if selection.is_newest {
1179 editor.pixel_position_of_newest_cursor = Some(point(
1180 text_hitbox.origin.x + x + block_width / 2.,
1181 text_hitbox.origin.y + y + line_height / 2.,
1182 ));
1183
1184 if autoscroll_containing_element {
1185 let top = text_hitbox.origin.y
1186 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1187 * line_height;
1188 let left = text_hitbox.origin.x
1189 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1190 .max(0.)
1191 * em_width;
1192
1193 let bottom = text_hitbox.origin.y
1194 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1195 * line_height;
1196 let right = text_hitbox.origin.x
1197 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1198 * em_width;
1199
1200 autoscroll_bounds =
1201 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1202 }
1203 }
1204
1205 let mut cursor = CursorLayout {
1206 color: player_color.cursor,
1207 block_width,
1208 origin: point(x, y),
1209 line_height,
1210 shape: selection.cursor_shape,
1211 block_text,
1212 cursor_name: None,
1213 };
1214 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1215 string: name,
1216 color: self.style.background,
1217 is_top_row: cursor_position.row().0 == 0,
1218 });
1219 cursor.layout(content_origin, cursor_name, cx);
1220 cursors.push(cursor);
1221 }
1222 }
1223 cursors
1224 });
1225
1226 if let Some(bounds) = autoscroll_bounds {
1227 cx.request_autoscroll(bounds);
1228 }
1229
1230 cursor_layouts
1231 }
1232
1233 fn layout_scrollbars(
1234 &self,
1235 snapshot: &EditorSnapshot,
1236 scrollbar_range_data: ScrollbarRangeData,
1237 scroll_position: gpui::Point<f32>,
1238 non_visible_cursors: bool,
1239 cx: &mut WindowContext,
1240 ) -> AxisPair<Option<ScrollbarLayout>> {
1241 let letter_size = scrollbar_range_data.letter_size;
1242 let text_units_per_page = axis_pair(
1243 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1244 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1245 );
1246
1247 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1248 let show_scrollbars = self.editor.read(cx).show_scrollbars
1249 && match scrollbar_settings.show {
1250 ShowScrollbar::Auto => {
1251 let editor = self.editor.read(cx);
1252 let is_singleton = editor.is_singleton(cx);
1253 // Git
1254 (is_singleton && scrollbar_settings.git_diff && !snapshot.diff_map.is_empty())
1255 ||
1256 // Buffer Search Results
1257 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1258 ||
1259 // Selected Symbol Occurrences
1260 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1261 ||
1262 // Diagnostics
1263 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1264 ||
1265 // Cursors out of sight
1266 non_visible_cursors
1267 ||
1268 // Scrollmanager
1269 editor.scroll_manager.scrollbars_visible()
1270 }
1271 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1272 ShowScrollbar::Always => true,
1273 ShowScrollbar::Never => false,
1274 };
1275
1276 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1277
1278 if snapshot.mode != EditorMode::Full {
1279 return axis_pair(None, None);
1280 }
1281
1282 let visible_range = axis_pair(
1283 axes.horizontal
1284 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1285 axes.vertical
1286 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1287 );
1288
1289 // If a drag took place after we started dragging the scrollbar,
1290 // cancel the scrollbar drag.
1291 if cx.has_active_drag() {
1292 self.editor.update(cx, |editor, cx| {
1293 editor
1294 .scroll_manager
1295 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1296 editor
1297 .scroll_manager
1298 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1299 });
1300 }
1301
1302 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1303
1304 let track_bounds = axis_pair(
1305 axes.horizontal.then(|| {
1306 Bounds::from_corners(
1307 point(
1308 text_bounds.bottom_left().x,
1309 text_bounds.bottom_left().y - self.style.scrollbar_width,
1310 ),
1311 point(
1312 text_bounds.bottom_right().x
1313 - if axes.vertical {
1314 self.style.scrollbar_width
1315 } else {
1316 px(0.)
1317 },
1318 text_bounds.bottom_right().y,
1319 ),
1320 )
1321 }),
1322 axes.vertical.then(|| {
1323 Bounds::from_corners(
1324 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1325 text_bounds.bottom_right(),
1326 )
1327 }),
1328 );
1329
1330 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1331 let total_text_units = axis_pair(
1332 Some(scroll_range_size.width / letter_size.width),
1333 Some(scroll_range_size.height / letter_size.height),
1334 );
1335
1336 let thumb_size = axis_pair(
1337 total_text_units
1338 .horizontal
1339 .zip(track_bounds.horizontal)
1340 .and_then(|(total_text_units_x, track_bounds_x)| {
1341 if text_units_per_page.horizontal >= total_text_units_x {
1342 return None;
1343 }
1344
1345 let thumb_percent =
1346 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1347
1348 Some(track_bounds_x.size.width * thumb_percent)
1349 }),
1350 total_text_units.vertical.zip(track_bounds.vertical).map(
1351 |(total_text_units_y, track_bounds_y)| {
1352 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1353
1354 track_bounds_y.size.height * thumb_percent
1355 },
1356 ),
1357 );
1358
1359 // NOTE: Space not taken by track bounds divided by text units not on screen
1360 let text_unit_size = axis_pair(
1361 thumb_size
1362 .horizontal
1363 .zip(track_bounds.horizontal)
1364 .zip(total_text_units.horizontal)
1365 .map(|((thumb_size, track_bounds), total_text_units)| {
1366 (track_bounds.size.width - thumb_size)
1367 / (total_text_units - text_units_per_page.horizontal).max(0.)
1368 }),
1369 thumb_size
1370 .vertical
1371 .zip(track_bounds.vertical)
1372 .zip(total_text_units.vertical)
1373 .map(|((thumb_size, track_bounds), total_text_units)| {
1374 (track_bounds.size.height - thumb_size)
1375 / (total_text_units - text_units_per_page.vertical).max(0.)
1376 }),
1377 );
1378
1379 let horizontal_scrollbar = track_bounds
1380 .horizontal
1381 .zip(visible_range.horizontal)
1382 .zip(text_unit_size.horizontal)
1383 .zip(thumb_size.horizontal)
1384 .map(
1385 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1386 hitbox: cx.insert_hitbox(track_bounds, false),
1387 visible_range,
1388 text_unit_size,
1389 visible: show_scrollbars,
1390 thumb_size,
1391 axis: Axis::Horizontal,
1392 },
1393 );
1394
1395 let vertical_scrollbar = track_bounds
1396 .vertical
1397 .zip(visible_range.vertical)
1398 .zip(text_unit_size.vertical)
1399 .zip(thumb_size.vertical)
1400 .map(
1401 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1402 hitbox: cx.insert_hitbox(track_bounds, false),
1403 visible_range,
1404 text_unit_size,
1405 visible: show_scrollbars,
1406 thumb_size,
1407 axis: Axis::Vertical,
1408 },
1409 );
1410
1411 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1412 }
1413
1414 #[allow(clippy::too_many_arguments)]
1415 fn prepaint_crease_toggles(
1416 &self,
1417 crease_toggles: &mut [Option<AnyElement>],
1418 line_height: Pixels,
1419 gutter_dimensions: &GutterDimensions,
1420 gutter_settings: crate::editor_settings::Gutter,
1421 scroll_pixel_position: gpui::Point<Pixels>,
1422 gutter_hitbox: &Hitbox,
1423 cx: &mut WindowContext,
1424 ) {
1425 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1426 if let Some(crease_toggle) = crease_toggle {
1427 debug_assert!(gutter_settings.folds);
1428 let available_space = size(
1429 AvailableSpace::MinContent,
1430 AvailableSpace::Definite(line_height * 0.55),
1431 );
1432 let crease_toggle_size = crease_toggle.layout_as_root(available_space, cx);
1433
1434 let position = point(
1435 gutter_dimensions.width - gutter_dimensions.right_padding,
1436 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1437 );
1438 let centering_offset = point(
1439 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1440 (line_height - crease_toggle_size.height) / 2.,
1441 );
1442 let origin = gutter_hitbox.origin + position + centering_offset;
1443 crease_toggle.prepaint_as_root(origin, available_space, cx);
1444 }
1445 }
1446 }
1447
1448 #[allow(clippy::too_many_arguments)]
1449 fn prepaint_crease_trailers(
1450 &self,
1451 trailers: Vec<Option<AnyElement>>,
1452 lines: &[LineWithInvisibles],
1453 line_height: Pixels,
1454 content_origin: gpui::Point<Pixels>,
1455 scroll_pixel_position: gpui::Point<Pixels>,
1456 em_width: Pixels,
1457 cx: &mut WindowContext,
1458 ) -> Vec<Option<CreaseTrailerLayout>> {
1459 trailers
1460 .into_iter()
1461 .enumerate()
1462 .map(|(ix, element)| {
1463 let mut element = element?;
1464 let available_space = size(
1465 AvailableSpace::MinContent,
1466 AvailableSpace::Definite(line_height),
1467 );
1468 let size = element.layout_as_root(available_space, cx);
1469
1470 let line = &lines[ix];
1471 let padding = if line.width == Pixels::ZERO {
1472 Pixels::ZERO
1473 } else {
1474 4. * em_width
1475 };
1476 let position = point(
1477 scroll_pixel_position.x + line.width + padding,
1478 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1479 );
1480 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1481 let origin = content_origin + position + centering_offset;
1482 element.prepaint_as_root(origin, available_space, cx);
1483 Some(CreaseTrailerLayout {
1484 element,
1485 bounds: Bounds::new(origin, size),
1486 })
1487 })
1488 .collect()
1489 }
1490
1491 // Folds contained in a hunk are ignored apart from shrinking visual size
1492 // If a fold contains any hunks then that fold line is marked as modified
1493 fn layout_gutter_git_hunks(
1494 &self,
1495 line_height: Pixels,
1496 gutter_hitbox: &Hitbox,
1497 display_rows: Range<DisplayRow>,
1498 anchor_range: Range<Anchor>,
1499 snapshot: &EditorSnapshot,
1500 cx: &mut WindowContext,
1501 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1502 let buffer_snapshot = &snapshot.buffer_snapshot;
1503 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1504 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1505
1506 let git_gutter_setting = ProjectSettings::get_global(cx)
1507 .git
1508 .git_gutter
1509 .unwrap_or_default();
1510
1511 self.editor.update(cx, |editor, cx| {
1512 let expanded_hunks = &editor.diff_map.hunks;
1513 let expanded_hunks_start_ix = expanded_hunks
1514 .binary_search_by(|hunk| {
1515 hunk.hunk_range
1516 .end
1517 .cmp(&anchor_range.start, &buffer_snapshot)
1518 .then(Ordering::Less)
1519 })
1520 .unwrap_err();
1521 let mut expanded_hunks = expanded_hunks[expanded_hunks_start_ix..].iter().peekable();
1522
1523 let mut display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)> = editor
1524 .diff_map
1525 .snapshot
1526 .diff_hunks_in_range(buffer_start..buffer_end, &buffer_snapshot)
1527 .filter_map(|hunk| {
1528 let display_hunk = diff_hunk_to_display(&hunk, snapshot);
1529
1530 if let DisplayDiffHunk::Unfolded {
1531 multi_buffer_range,
1532 status,
1533 ..
1534 } = &display_hunk
1535 {
1536 let mut is_expanded = false;
1537 while let Some(expanded_hunk) = expanded_hunks.peek() {
1538 match expanded_hunk
1539 .hunk_range
1540 .start
1541 .cmp(&multi_buffer_range.start, &buffer_snapshot)
1542 {
1543 Ordering::Less => {
1544 expanded_hunks.next();
1545 }
1546 Ordering::Equal => {
1547 is_expanded = true;
1548 break;
1549 }
1550 Ordering::Greater => {
1551 break;
1552 }
1553 }
1554 }
1555 match status {
1556 DiffHunkStatus::Added => {}
1557 DiffHunkStatus::Modified => {}
1558 DiffHunkStatus::Removed => {
1559 if is_expanded {
1560 return None;
1561 }
1562 }
1563 }
1564 }
1565
1566 Some(display_hunk)
1567 })
1568 .dedup()
1569 .map(|hunk| (hunk, None))
1570 .collect();
1571
1572 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1573 for (hunk, hitbox) in &mut display_hunks {
1574 if let DisplayDiffHunk::Unfolded { .. } = hunk {
1575 let hunk_bounds = Self::diff_hunk_bounds(
1576 snapshot,
1577 line_height,
1578 gutter_hitbox.bounds,
1579 &hunk,
1580 );
1581 *hitbox = Some(cx.insert_hitbox(hunk_bounds, true));
1582 };
1583 }
1584 }
1585
1586 display_hunks
1587 })
1588 }
1589
1590 #[allow(clippy::too_many_arguments)]
1591 fn layout_inline_blame(
1592 &self,
1593 display_row: DisplayRow,
1594 display_snapshot: &DisplaySnapshot,
1595 line_layout: &LineWithInvisibles,
1596 crease_trailer: Option<&CreaseTrailerLayout>,
1597 em_width: Pixels,
1598 content_origin: gpui::Point<Pixels>,
1599 scroll_pixel_position: gpui::Point<Pixels>,
1600 line_height: Pixels,
1601 cx: &mut WindowContext,
1602 ) -> Option<AnyElement> {
1603 if !self
1604 .editor
1605 .update(cx, |editor, cx| editor.render_git_blame_inline(cx))
1606 {
1607 return None;
1608 }
1609
1610 let workspace = self
1611 .editor
1612 .read(cx)
1613 .workspace
1614 .as_ref()
1615 .map(|(w, _)| w.clone());
1616
1617 let display_point = DisplayPoint::new(display_row, 0);
1618 let buffer_row = MultiBufferRow(display_point.to_point(display_snapshot).row);
1619
1620 let editor = self.editor.read(cx);
1621 let blame = editor.blame.clone()?;
1622 let padding = {
1623 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1624 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1625
1626 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1627
1628 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1629 match &inline_completion.completion {
1630 InlineCompletion::Edit {
1631 single_line: true, ..
1632 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1633 _ => {}
1634 }
1635 }
1636
1637 padding * em_width
1638 };
1639
1640 let blame_entry = blame
1641 .update(cx, |blame, cx| {
1642 blame.blame_for_rows([Some(buffer_row)], cx).next()
1643 })
1644 .flatten()?;
1645
1646 let mut element =
1647 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1648
1649 let start_y = content_origin.y
1650 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1651
1652 let start_x = {
1653 let line_end = if let Some(crease_trailer) = crease_trailer {
1654 crease_trailer.bounds.right()
1655 } else {
1656 content_origin.x - scroll_pixel_position.x + line_layout.width
1657 };
1658
1659 let padded_line_end = line_end + padding;
1660
1661 let min_column_in_pixels = ProjectSettings::get_global(cx)
1662 .git
1663 .inline_blame
1664 .and_then(|settings| settings.min_column)
1665 .map(|col| self.column_pixels(col as usize, cx))
1666 .unwrap_or(px(0.));
1667 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1668
1669 cmp::max(padded_line_end, min_start)
1670 };
1671
1672 let absolute_offset = point(start_x, start_y);
1673 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), cx);
1674
1675 Some(element)
1676 }
1677
1678 #[allow(clippy::too_many_arguments)]
1679 fn layout_blame_entries(
1680 &self,
1681 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1682 em_width: Pixels,
1683 scroll_position: gpui::Point<f32>,
1684 line_height: Pixels,
1685 gutter_hitbox: &Hitbox,
1686 max_width: Option<Pixels>,
1687 cx: &mut WindowContext,
1688 ) -> Option<Vec<AnyElement>> {
1689 if !self
1690 .editor
1691 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1692 {
1693 return None;
1694 }
1695
1696 let blame = self.editor.read(cx).blame.clone()?;
1697 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1698 blame.blame_for_rows(buffer_rows, cx).collect()
1699 });
1700
1701 let width = if let Some(max_width) = max_width {
1702 AvailableSpace::Definite(max_width)
1703 } else {
1704 AvailableSpace::MaxContent
1705 };
1706 let scroll_top = scroll_position.y * line_height;
1707 let start_x = em_width;
1708
1709 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1710
1711 let shaped_lines = blamed_rows
1712 .into_iter()
1713 .enumerate()
1714 .flat_map(|(ix, blame_entry)| {
1715 if let Some(blame_entry) = blame_entry {
1716 let mut element = render_blame_entry(
1717 ix,
1718 &blame,
1719 blame_entry,
1720 &self.style,
1721 &mut last_used_color,
1722 self.editor.clone(),
1723 cx,
1724 );
1725
1726 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1727 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1728
1729 element.prepaint_as_root(
1730 absolute_offset,
1731 size(width, AvailableSpace::MinContent),
1732 cx,
1733 );
1734
1735 Some(element)
1736 } else {
1737 None
1738 }
1739 })
1740 .collect();
1741
1742 Some(shaped_lines)
1743 }
1744
1745 #[allow(clippy::too_many_arguments)]
1746 fn layout_indent_guides(
1747 &self,
1748 content_origin: gpui::Point<Pixels>,
1749 text_origin: gpui::Point<Pixels>,
1750 visible_buffer_range: Range<MultiBufferRow>,
1751 scroll_pixel_position: gpui::Point<Pixels>,
1752 line_height: Pixels,
1753 snapshot: &DisplaySnapshot,
1754 cx: &mut WindowContext,
1755 ) -> Option<Vec<IndentGuideLayout>> {
1756 let indent_guides = self.editor.update(cx, |editor, cx| {
1757 editor.indent_guides(visible_buffer_range, snapshot, cx)
1758 })?;
1759
1760 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1761 editor
1762 .find_active_indent_guide_indices(&indent_guides, snapshot, cx)
1763 .unwrap_or_default()
1764 });
1765
1766 Some(
1767 indent_guides
1768 .into_iter()
1769 .enumerate()
1770 .filter_map(|(i, indent_guide)| {
1771 let single_indent_width =
1772 self.column_pixels(indent_guide.tab_size as usize, cx);
1773 let total_width = single_indent_width * indent_guide.depth as f32;
1774 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1775 if start_x >= text_origin.x {
1776 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1777 indent_guide.multibuffer_row_range.clone(),
1778 line_height,
1779 snapshot,
1780 );
1781
1782 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1783
1784 Some(IndentGuideLayout {
1785 origin: point(start_x, start_y),
1786 length,
1787 single_indent_width,
1788 depth: indent_guide.depth,
1789 active: active_indent_guide_indices.contains(&i),
1790 settings: indent_guide.settings,
1791 })
1792 } else {
1793 None
1794 }
1795 })
1796 .collect(),
1797 )
1798 }
1799
1800 fn calculate_indent_guide_bounds(
1801 row_range: Range<MultiBufferRow>,
1802 line_height: Pixels,
1803 snapshot: &DisplaySnapshot,
1804 ) -> (gpui::Pixels, gpui::Pixels) {
1805 let start_point = Point::new(row_range.start.0, 0);
1806 let end_point = Point::new(row_range.end.0, 0);
1807
1808 let row_range = start_point.to_display_point(snapshot).row()
1809 ..end_point.to_display_point(snapshot).row();
1810
1811 let mut prev_line = start_point;
1812 prev_line.row = prev_line.row.saturating_sub(1);
1813 let prev_line = prev_line.to_display_point(snapshot).row();
1814
1815 let mut cons_line = end_point;
1816 cons_line.row += 1;
1817 let cons_line = cons_line.to_display_point(snapshot).row();
1818
1819 let mut offset_y = row_range.start.0 as f32 * line_height;
1820 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1821
1822 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1823 if row_range.end == cons_line {
1824 length += line_height;
1825 }
1826
1827 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1828 // we want to extend the indent guide to the start of the block.
1829 let mut block_height = 0;
1830 let mut block_offset = 0;
1831 let mut found_excerpt_header = false;
1832 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1833 if matches!(block, Block::ExcerptBoundary { .. }) {
1834 found_excerpt_header = true;
1835 break;
1836 }
1837 block_offset += block.height();
1838 block_height += block.height();
1839 }
1840 if !found_excerpt_header {
1841 offset_y -= block_offset as f32 * line_height;
1842 length += block_height as f32 * line_height;
1843 }
1844
1845 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1846 // we want to ensure that the indent guide stops before the excerpt header.
1847 let mut block_height = 0;
1848 let mut found_excerpt_header = false;
1849 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1850 if matches!(block, Block::ExcerptBoundary { .. }) {
1851 found_excerpt_header = true;
1852 }
1853 block_height += block.height();
1854 }
1855 if found_excerpt_header {
1856 length -= block_height as f32 * line_height;
1857 }
1858
1859 (offset_y, length)
1860 }
1861
1862 #[allow(clippy::too_many_arguments)]
1863 fn layout_run_indicators(
1864 &self,
1865 line_height: Pixels,
1866 range: Range<DisplayRow>,
1867 scroll_pixel_position: gpui::Point<Pixels>,
1868 gutter_dimensions: &GutterDimensions,
1869 gutter_hitbox: &Hitbox,
1870 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1871 snapshot: &EditorSnapshot,
1872 cx: &mut WindowContext,
1873 ) -> Vec<AnyElement> {
1874 self.editor.update(cx, |editor, cx| {
1875 let active_task_indicator_row =
1876 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1877 deployed_from_indicator,
1878 actions,
1879 ..
1880 })) = editor.context_menu.borrow().as_ref()
1881 {
1882 actions
1883 .tasks
1884 .as_ref()
1885 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1886 .or(*deployed_from_indicator)
1887 } else {
1888 None
1889 };
1890
1891 let offset_range_start = snapshot
1892 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1893 .to_offset(&snapshot.buffer_snapshot);
1894 let offset_range_end = snapshot
1895 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1896 .to_offset(&snapshot.buffer_snapshot);
1897
1898 editor
1899 .tasks
1900 .iter()
1901 .filter_map(|(_, tasks)| {
1902 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1903 return None;
1904 }
1905 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1906 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1907 let buffer_folded = snapshot
1908 .buffer_snapshot
1909 .buffer_line_for_row(multibuffer_row)
1910 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1911 .map(|buffer_id| editor.buffer_folded(buffer_id, cx))
1912 .unwrap_or(false);
1913 if buffer_folded {
1914 return None;
1915 }
1916
1917 if snapshot.is_line_folded(multibuffer_row) {
1918 // Skip folded indicators, unless it's the starting line of a fold.
1919 if multibuffer_row
1920 .0
1921 .checked_sub(1)
1922 .map_or(false, |previous_row| {
1923 snapshot.is_line_folded(MultiBufferRow(previous_row))
1924 })
1925 {
1926 return None;
1927 }
1928 }
1929 let display_row = multibuffer_point.to_display_point(snapshot).row();
1930 let button = editor.render_run_indicator(
1931 &self.style,
1932 Some(display_row) == active_task_indicator_row,
1933 display_row,
1934 cx,
1935 );
1936
1937 let button = prepaint_gutter_button(
1938 button,
1939 display_row,
1940 line_height,
1941 gutter_dimensions,
1942 scroll_pixel_position,
1943 gutter_hitbox,
1944 rows_with_hunk_bounds,
1945 cx,
1946 );
1947 Some(button)
1948 })
1949 .collect_vec()
1950 })
1951 }
1952
1953 #[allow(clippy::too_many_arguments)]
1954 fn layout_code_actions_indicator(
1955 &self,
1956 line_height: Pixels,
1957 newest_selection_head: DisplayPoint,
1958 scroll_pixel_position: gpui::Point<Pixels>,
1959 gutter_dimensions: &GutterDimensions,
1960 gutter_hitbox: &Hitbox,
1961 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1962 cx: &mut WindowContext,
1963 ) -> Option<AnyElement> {
1964 let mut active = false;
1965 let mut button = None;
1966 let row = newest_selection_head.row();
1967 self.editor.update(cx, |editor, cx| {
1968 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1969 deployed_from_indicator,
1970 ..
1971 })) = editor.context_menu.borrow().as_ref()
1972 {
1973 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1974 };
1975 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1976 });
1977
1978 let button = prepaint_gutter_button(
1979 button?,
1980 row,
1981 line_height,
1982 gutter_dimensions,
1983 scroll_pixel_position,
1984 gutter_hitbox,
1985 rows_with_hunk_bounds,
1986 cx,
1987 );
1988
1989 Some(button)
1990 }
1991
1992 fn get_participant_color(
1993 participant_index: Option<ParticipantIndex>,
1994 cx: &WindowContext,
1995 ) -> PlayerColor {
1996 if let Some(index) = participant_index {
1997 cx.theme().players().color_for_participant(index.0)
1998 } else {
1999 cx.theme().players().absent()
2000 }
2001 }
2002
2003 fn calculate_relative_line_numbers(
2004 &self,
2005 snapshot: &EditorSnapshot,
2006 rows: &Range<DisplayRow>,
2007 relative_to: Option<DisplayRow>,
2008 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2009 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2010 let Some(relative_to) = relative_to else {
2011 return relative_rows;
2012 };
2013
2014 let start = rows.start.min(relative_to);
2015 let end = rows.end.max(relative_to);
2016
2017 let buffer_rows = snapshot
2018 .buffer_rows(start)
2019 .take(1 + end.minus(start) as usize)
2020 .collect::<Vec<_>>();
2021
2022 let head_idx = relative_to.minus(start);
2023 let mut delta = 1;
2024 let mut i = head_idx + 1;
2025 while i < buffer_rows.len() as u32 {
2026 if buffer_rows[i as usize].is_some() {
2027 if rows.contains(&DisplayRow(i + start.0)) {
2028 relative_rows.insert(DisplayRow(i + start.0), delta);
2029 }
2030 delta += 1;
2031 }
2032 i += 1;
2033 }
2034 delta = 1;
2035 i = head_idx.min(buffer_rows.len() as u32 - 1);
2036 while i > 0 && buffer_rows[i as usize].is_none() {
2037 i -= 1;
2038 }
2039
2040 while i > 0 {
2041 i -= 1;
2042 if buffer_rows[i as usize].is_some() {
2043 if rows.contains(&DisplayRow(i + start.0)) {
2044 relative_rows.insert(DisplayRow(i + start.0), delta);
2045 }
2046 delta += 1;
2047 }
2048 }
2049
2050 relative_rows
2051 }
2052
2053 #[allow(clippy::too_many_arguments)]
2054 fn layout_line_numbers(
2055 &self,
2056 gutter_hitbox: Option<&Hitbox>,
2057 gutter_dimensions: GutterDimensions,
2058 line_height: Pixels,
2059 scroll_position: gpui::Point<f32>,
2060 rows: Range<DisplayRow>,
2061 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
2062 newest_selection_head: Option<DisplayPoint>,
2063 snapshot: &EditorSnapshot,
2064 cx: &mut WindowContext,
2065 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2066 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2067 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2068 });
2069 if !include_line_numbers {
2070 return Arc::default();
2071 }
2072
2073 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2074 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2075 let newest = editor.selections.newest::<Point>(cx);
2076 SelectionLayout::new(
2077 newest,
2078 editor.selections.line_mode,
2079 editor.cursor_shape,
2080 &snapshot.display_snapshot,
2081 true,
2082 true,
2083 None,
2084 )
2085 .head
2086 });
2087 let is_relative = editor.should_use_relative_line_numbers(cx);
2088 (newest_selection_head, is_relative)
2089 });
2090
2091 let relative_to = if is_relative {
2092 Some(newest_selection_head.row())
2093 } else {
2094 None
2095 };
2096 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2097 let mut line_number = String::new();
2098 let line_numbers = buffer_rows
2099 .into_iter()
2100 .enumerate()
2101 .flat_map(|(ix, buffer_row)| {
2102 let buffer_row = buffer_row?;
2103 line_number.clear();
2104 let display_row = DisplayRow(rows.start.0 + ix as u32);
2105 let non_relative_number = buffer_row.0 + 1;
2106 let number = relative_rows
2107 .get(&display_row)
2108 .unwrap_or(&non_relative_number);
2109 write!(&mut line_number, "{number}").unwrap();
2110
2111 let color = cx.theme().colors().editor_line_number;
2112 let shaped_line = self
2113 .shape_line_number(SharedString::from(&line_number), color, cx)
2114 .log_err()?;
2115 let scroll_top = scroll_position.y * line_height;
2116 let line_origin = gutter_hitbox.map(|hitbox| {
2117 hitbox.origin
2118 + point(
2119 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2120 ix as f32 * line_height - (scroll_top % line_height),
2121 )
2122 });
2123
2124 #[cfg(not(test))]
2125 let hitbox = line_origin.map(|line_origin| {
2126 cx.insert_hitbox(
2127 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2128 false,
2129 )
2130 });
2131 #[cfg(test)]
2132 let hitbox = {
2133 let _ = line_origin;
2134 None
2135 };
2136
2137 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2138 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2139 let line_number = LineNumberLayout {
2140 shaped_line,
2141 hitbox,
2142 display_row,
2143 };
2144 Some((multi_buffer_row, line_number))
2145 })
2146 .collect();
2147 Arc::new(line_numbers)
2148 }
2149
2150 fn layout_crease_toggles(
2151 &self,
2152 rows: Range<DisplayRow>,
2153 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
2154 active_rows: &BTreeMap<DisplayRow, bool>,
2155 snapshot: &EditorSnapshot,
2156 cx: &mut WindowContext,
2157 ) -> Vec<Option<AnyElement>> {
2158 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2159 && snapshot.mode == EditorMode::Full
2160 && self.editor.read(cx).is_singleton(cx);
2161 if include_fold_statuses {
2162 buffer_rows
2163 .into_iter()
2164 .enumerate()
2165 .map(|(ix, row)| {
2166 if let Some(multibuffer_row) = row {
2167 let display_row = DisplayRow(rows.start.0 + ix as u32);
2168 let active = active_rows.contains_key(&display_row);
2169 snapshot.render_crease_toggle(
2170 multibuffer_row,
2171 active,
2172 self.editor.clone(),
2173 cx,
2174 )
2175 } else {
2176 None
2177 }
2178 })
2179 .collect()
2180 } else {
2181 Vec::new()
2182 }
2183 }
2184
2185 fn layout_crease_trailers(
2186 &self,
2187 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
2188 snapshot: &EditorSnapshot,
2189 cx: &mut WindowContext,
2190 ) -> Vec<Option<AnyElement>> {
2191 buffer_rows
2192 .into_iter()
2193 .map(|row| {
2194 if let Some(multibuffer_row) = row {
2195 snapshot.render_crease_trailer(multibuffer_row, cx)
2196 } else {
2197 None
2198 }
2199 })
2200 .collect()
2201 }
2202
2203 fn layout_lines(
2204 rows: Range<DisplayRow>,
2205 snapshot: &EditorSnapshot,
2206 style: &EditorStyle,
2207 editor_width: Pixels,
2208 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2209 cx: &mut WindowContext,
2210 ) -> Vec<LineWithInvisibles> {
2211 if rows.start >= rows.end {
2212 return Vec::new();
2213 }
2214
2215 // Show the placeholder when the editor is empty
2216 if snapshot.is_empty() {
2217 let font_size = style.text.font_size.to_pixels(cx.rem_size());
2218 let placeholder_color = cx.theme().colors().text_placeholder;
2219 let placeholder_text = snapshot.placeholder_text();
2220
2221 let placeholder_lines = placeholder_text
2222 .as_ref()
2223 .map_or("", AsRef::as_ref)
2224 .split('\n')
2225 .skip(rows.start.0 as usize)
2226 .chain(iter::repeat(""))
2227 .take(rows.len());
2228 placeholder_lines
2229 .filter_map(move |line| {
2230 let run = TextRun {
2231 len: line.len(),
2232 font: style.text.font(),
2233 color: placeholder_color,
2234 background_color: None,
2235 underline: Default::default(),
2236 strikethrough: None,
2237 };
2238 cx.text_system()
2239 .shape_line(line.to_string().into(), font_size, &[run])
2240 .log_err()
2241 })
2242 .map(|line| LineWithInvisibles {
2243 width: line.width,
2244 len: line.len,
2245 fragments: smallvec![LineFragment::Text(line)],
2246 invisibles: Vec::new(),
2247 font_size,
2248 })
2249 .collect()
2250 } else {
2251 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2252 LineWithInvisibles::from_chunks(
2253 chunks,
2254 &style,
2255 MAX_LINE_LEN,
2256 rows.len(),
2257 snapshot.mode,
2258 editor_width,
2259 is_row_soft_wrapped,
2260 cx,
2261 )
2262 }
2263 }
2264
2265 fn prepaint_lines(
2266 &self,
2267 start_row: DisplayRow,
2268 line_layouts: &mut [LineWithInvisibles],
2269 line_height: Pixels,
2270 scroll_pixel_position: gpui::Point<Pixels>,
2271 content_origin: gpui::Point<Pixels>,
2272 cx: &mut WindowContext,
2273 ) -> SmallVec<[AnyElement; 1]> {
2274 let mut line_elements = SmallVec::new();
2275 for (ix, line) in line_layouts.iter_mut().enumerate() {
2276 let row = start_row + DisplayRow(ix as u32);
2277 line.prepaint(
2278 line_height,
2279 scroll_pixel_position,
2280 row,
2281 content_origin,
2282 &mut line_elements,
2283 cx,
2284 );
2285 }
2286 line_elements
2287 }
2288
2289 #[allow(clippy::too_many_arguments)]
2290 fn render_block(
2291 &self,
2292 block: &Block,
2293 available_width: AvailableSpace,
2294 block_id: BlockId,
2295 block_row_start: DisplayRow,
2296 snapshot: &EditorSnapshot,
2297 text_x: Pixels,
2298 rows: &Range<DisplayRow>,
2299 line_layouts: &[LineWithInvisibles],
2300 gutter_dimensions: &GutterDimensions,
2301 line_height: Pixels,
2302 em_width: Pixels,
2303 text_hitbox: &Hitbox,
2304 editor_width: Pixels,
2305 scroll_width: &mut Pixels,
2306 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2307 selections: &[Selection<Point>],
2308 selected_buffer_ids: &Vec<BufferId>,
2309 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2310 sticky_header_excerpt_id: Option<ExcerptId>,
2311 cx: &mut WindowContext,
2312 ) -> (AnyElement, Size<Pixels>) {
2313 let mut element = match block {
2314 Block::Custom(block) => {
2315 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2316 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2317 let align_to = block_start.to_display_point(snapshot);
2318 let anchor_x = text_x
2319 + if rows.contains(&align_to.row()) {
2320 line_layouts[align_to.row().minus(rows.start) as usize]
2321 .x_for_index(align_to.column() as usize)
2322 } else {
2323 layout_line(
2324 align_to.row(),
2325 snapshot,
2326 &self.style,
2327 editor_width,
2328 is_row_soft_wrapped,
2329 cx,
2330 )
2331 .x_for_index(align_to.column() as usize)
2332 };
2333
2334 let selected = selections
2335 .binary_search_by(|selection| {
2336 if selection.end <= block_start {
2337 Ordering::Less
2338 } else if selection.start >= block_end {
2339 Ordering::Greater
2340 } else {
2341 Ordering::Equal
2342 }
2343 })
2344 .is_ok();
2345
2346 div()
2347 .size_full()
2348 .child(block.render(&mut BlockContext {
2349 context: cx,
2350 anchor_x,
2351 gutter_dimensions,
2352 line_height,
2353 em_width,
2354 block_id,
2355 selected,
2356 max_width: text_hitbox.size.width.max(*scroll_width),
2357 editor_style: &self.style,
2358 }))
2359 .into_any()
2360 }
2361
2362 Block::FoldedBuffer {
2363 first_excerpt,
2364 prev_excerpt,
2365 show_excerpt_controls,
2366 height,
2367 } => {
2368 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2369 let icon_offset = gutter_dimensions.width
2370 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2371 let mut result = v_flex().id(block_id).w_full();
2372
2373 if let Some(prev_excerpt) = prev_excerpt {
2374 if *show_excerpt_controls {
2375 result = result.child(
2376 h_flex()
2377 .id("expand_down_hit_area")
2378 .w(icon_offset)
2379 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2380 .flex_none()
2381 .justify_end()
2382 .child(self.render_expand_excerpt_button(
2383 IconName::ArrowDownFromLine,
2384 None,
2385 cx,
2386 ))
2387 .on_click(cx.listener_for(&self.editor, {
2388 let excerpt_id = prev_excerpt.id;
2389 let direction = ExpandExcerptDirection::Down;
2390 move |editor, _, cx| {
2391 editor.expand_excerpt(excerpt_id, direction, cx);
2392 cx.stop_propagation();
2393 }
2394 })),
2395 );
2396 }
2397 }
2398
2399 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2400 result
2401 .child(self.render_buffer_header(first_excerpt, true, selected, jump_data, cx))
2402 .into_any_element()
2403 }
2404
2405 Block::ExcerptBoundary {
2406 prev_excerpt,
2407 next_excerpt,
2408 show_excerpt_controls,
2409 height,
2410 starts_new_buffer,
2411 } => {
2412 let icon_offset = gutter_dimensions.width
2413 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2414 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height();
2415 let color = cx.theme().colors().clone();
2416 let hover_color = color.border_variant.opacity(0.5);
2417 let focus_handle = self.editor.focus_handle(cx).clone();
2418
2419 let mut result = v_flex().id(block_id).w_full();
2420 let expand_area = |id: SharedString| {
2421 h_flex()
2422 .id(id)
2423 .w_full()
2424 .cursor_pointer()
2425 .block_mouse_down()
2426 .on_mouse_move(|_, cx| cx.stop_propagation())
2427 .hover(|style| style.bg(hover_color))
2428 .tooltip({
2429 let focus_handle = focus_handle.clone();
2430 move |cx| {
2431 Tooltip::for_action_in(
2432 "Expand Excerpt",
2433 &ExpandExcerpts { lines: 0 },
2434 &focus_handle,
2435 cx,
2436 )
2437 }
2438 })
2439 };
2440
2441 if let Some(prev_excerpt) = prev_excerpt {
2442 if *show_excerpt_controls {
2443 let group_name = "expand-down";
2444
2445 result = result.child(
2446 expand_area(format!("block-{}-down", block_id).into())
2447 .group(group_name)
2448 .child(
2449 h_flex()
2450 .w(icon_offset)
2451 .h(header_height)
2452 .flex_none()
2453 .justify_end()
2454 .child(self.render_expand_excerpt_button(
2455 IconName::ArrowDownFromLine,
2456 Some(group_name.to_string()),
2457 cx,
2458 )),
2459 )
2460 .on_click(cx.listener_for(&self.editor, {
2461 let excerpt_id = prev_excerpt.id;
2462 let direction = ExpandExcerptDirection::Down;
2463 move |editor, _, cx| {
2464 editor.expand_excerpt(excerpt_id, direction, cx);
2465 cx.stop_propagation();
2466 }
2467 })),
2468 );
2469 }
2470 }
2471
2472 if let Some(next_excerpt) = next_excerpt {
2473 let jump_data =
2474 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2475
2476 if *starts_new_buffer {
2477 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2478 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2479
2480 result = result.child(self.render_buffer_header(
2481 next_excerpt,
2482 false,
2483 selected,
2484 jump_data,
2485 cx,
2486 ));
2487 } else {
2488 result =
2489 result.child(div().h(FILE_HEADER_HEIGHT as f32 * cx.line_height()));
2490 }
2491
2492 if *show_excerpt_controls {
2493 let group_name = "expand-up-first";
2494
2495 result = result.child(
2496 h_flex().group(group_name).child(
2497 expand_area(format!("block-{}-up-first", block_id).into())
2498 .h(header_height)
2499 .child(
2500 h_flex()
2501 .w(icon_offset)
2502 .h(header_height)
2503 .flex_none()
2504 .justify_end()
2505 .child(self.render_expand_excerpt_button(
2506 IconName::ArrowUpFromLine,
2507 Some(group_name.to_string()),
2508 cx,
2509 )),
2510 )
2511 .on_click(cx.listener_for(&self.editor, {
2512 let excerpt_id = next_excerpt.id;
2513 let direction = ExpandExcerptDirection::Up;
2514 move |editor, _, cx| {
2515 editor.expand_excerpt(excerpt_id, direction, cx);
2516 cx.stop_propagation();
2517 }
2518 })),
2519 ),
2520 );
2521 }
2522 } else {
2523 let group_name = "expand-up-subsequent";
2524
2525 if *show_excerpt_controls {
2526 result = result.child(
2527 h_flex()
2528 .relative()
2529 .group(group_name)
2530 .child(
2531 div()
2532 .top(px(0.))
2533 .absolute()
2534 .w_full()
2535 .h_px()
2536 .bg(color.border_variant),
2537 )
2538 .child(
2539 expand_area(format!("block-{}-up", block_id).into())
2540 .h(header_height)
2541 .child(
2542 h_flex()
2543 .w(icon_offset)
2544 .h(header_height)
2545 .flex_none()
2546 .justify_end()
2547 .child(if *show_excerpt_controls {
2548 self.render_expand_excerpt_button(
2549 IconName::ArrowUpFromLine,
2550 Some(group_name.to_string()),
2551 cx,
2552 )
2553 } else {
2554 ButtonLike::new("jump-icon")
2555 .style(ButtonStyle::Transparent)
2556 .child(
2557 svg()
2558 .path(
2559 IconName::ArrowUpRight
2560 .path(),
2561 )
2562 .size(IconSize::XSmall.rems())
2563 .text_color(
2564 color.border_variant,
2565 )
2566 .group_hover(
2567 group_name,
2568 |style| {
2569 style.text_color(
2570 color.border,
2571 )
2572 },
2573 ),
2574 )
2575 }),
2576 )
2577 .on_click(cx.listener_for(&self.editor, {
2578 let excerpt_id = next_excerpt.id;
2579 let direction = ExpandExcerptDirection::Up;
2580 move |editor, _, cx| {
2581 editor
2582 .expand_excerpt(excerpt_id, direction, cx);
2583 cx.stop_propagation();
2584 }
2585 })),
2586 ),
2587 );
2588 }
2589 };
2590 }
2591
2592 result.into_any()
2593 }
2594 };
2595
2596 // Discover the element's content height, then round up to the nearest multiple of line height.
2597 let preliminary_size =
2598 element.layout_as_root(size(available_width, AvailableSpace::MinContent), cx);
2599 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2600 let final_size = if preliminary_size.height == quantized_height {
2601 preliminary_size
2602 } else {
2603 element.layout_as_root(size(available_width, quantized_height.into()), cx)
2604 };
2605
2606 if let BlockId::Custom(custom_block_id) = block_id {
2607 if block.height() > 0 {
2608 let element_height_in_lines =
2609 ((final_size.height / line_height).ceil() as u32).max(1);
2610 if element_height_in_lines != block.height() {
2611 resized_blocks.insert(custom_block_id, element_height_in_lines);
2612 }
2613 }
2614 }
2615
2616 (element, final_size)
2617 }
2618
2619 fn render_buffer_header(
2620 &self,
2621 for_excerpt: &ExcerptInfo,
2622 is_folded: bool,
2623 is_selected: bool,
2624 jump_data: JumpData,
2625 cx: &mut WindowContext,
2626 ) -> Div {
2627 let include_root = self
2628 .editor
2629 .read(cx)
2630 .project
2631 .as_ref()
2632 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2633 .unwrap_or_default();
2634 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2635 let filename = path
2636 .as_ref()
2637 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2638 let parent_path = path
2639 .as_ref()
2640 .and_then(|path| Some(path.parent()?.to_string_lossy().to_string() + "/"));
2641 let focus_handle = self.editor.focus_handle(cx);
2642 let colors = cx.theme().colors();
2643
2644 div()
2645 .px_2()
2646 .pt_2()
2647 .w_full()
2648 .h(FILE_HEADER_HEIGHT as f32 * cx.line_height())
2649 .child(
2650 h_flex()
2651 .size_full()
2652 .gap_2()
2653 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2654 .pl_0p5()
2655 .pr_5()
2656 .rounded_md()
2657 .shadow_md()
2658 .border_1()
2659 .map(|div| {
2660 let border_color = if is_selected && is_folded {
2661 colors.border_focused
2662 } else {
2663 colors.border
2664 };
2665 div.border_color(border_color)
2666 })
2667 .bg(colors.editor_subheader_background)
2668 .hover(|style| style.bg(colors.element_hover))
2669 .map(|header| {
2670 let editor = self.editor.clone();
2671 let buffer_id = for_excerpt.buffer_id;
2672 let toggle_chevron_icon =
2673 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2674 header.child(
2675 div()
2676 .hover(|style| style.bg(colors.element_selected))
2677 .rounded_sm()
2678 .child(
2679 ButtonLike::new("toggle-buffer-fold")
2680 .style(ui::ButtonStyle::Transparent)
2681 .size(ButtonSize::Large)
2682 .width(px(30.).into())
2683 .children(toggle_chevron_icon)
2684 .tooltip({
2685 let focus_handle = focus_handle.clone();
2686 move |cx| {
2687 Tooltip::for_action_in(
2688 "Toggle Excerpt Fold",
2689 &ToggleFold,
2690 &focus_handle,
2691 cx,
2692 )
2693 }
2694 })
2695 .on_click(move |_, cx| {
2696 if is_folded {
2697 editor.update(cx, |editor, cx| {
2698 editor.unfold_buffer(buffer_id, cx);
2699 });
2700 } else {
2701 editor.update(cx, |editor, cx| {
2702 editor.fold_buffer(buffer_id, cx);
2703 });
2704 }
2705 }),
2706 ),
2707 )
2708 })
2709 .child(
2710 h_flex()
2711 .cursor_pointer()
2712 .id("path header block")
2713 .size_full()
2714 .justify_between()
2715 .child(
2716 h_flex()
2717 .gap_2()
2718 .child(
2719 filename
2720 .map(SharedString::from)
2721 .unwrap_or_else(|| "untitled".into()),
2722 )
2723 .when_some(parent_path, |then, path| {
2724 then.child(div().child(path).text_color(colors.text_muted))
2725 }),
2726 )
2727 .when(is_selected, |el| {
2728 el.child(
2729 h_flex()
2730 .id("jump-to-file-button")
2731 .gap_2p5()
2732 .child(Label::new("Jump To File"))
2733 .children(
2734 KeyBinding::for_action_in(
2735 &OpenExcerpts,
2736 &focus_handle,
2737 cx,
2738 )
2739 .map(|binding| binding.into_any_element()),
2740 ),
2741 )
2742 })
2743 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
2744 .on_click(cx.listener_for(&self.editor, {
2745 move |editor, e: &ClickEvent, cx| {
2746 editor.open_excerpts_common(
2747 Some(jump_data.clone()),
2748 e.down.modifiers.secondary(),
2749 cx,
2750 );
2751 }
2752 })),
2753 ),
2754 )
2755 }
2756
2757 fn render_expand_excerpt_button(
2758 &self,
2759 icon: IconName,
2760 group_name: impl Into<Option<String>>,
2761 cx: &mut WindowContext,
2762 ) -> ButtonLike {
2763 let group_name = group_name.into();
2764 ButtonLike::new("expand-icon")
2765 .style(ButtonStyle::Transparent)
2766 .child(
2767 svg()
2768 .path(icon.path())
2769 .size(IconSize::XSmall.rems())
2770 .text_color(cx.theme().colors().editor_line_number)
2771 .when_some(group_name, |svg, group_name| {
2772 svg.group_hover(group_name, |style| {
2773 style.text_color(cx.theme().colors().editor_active_line_number)
2774 })
2775 }),
2776 )
2777 }
2778
2779 #[allow(clippy::too_many_arguments)]
2780 fn render_blocks(
2781 &self,
2782 rows: Range<DisplayRow>,
2783 snapshot: &EditorSnapshot,
2784 hitbox: &Hitbox,
2785 text_hitbox: &Hitbox,
2786 editor_width: Pixels,
2787 scroll_width: &mut Pixels,
2788 gutter_dimensions: &GutterDimensions,
2789 em_width: Pixels,
2790 text_x: Pixels,
2791 line_height: Pixels,
2792 line_layouts: &[LineWithInvisibles],
2793 selections: &[Selection<Point>],
2794 selected_buffer_ids: &Vec<BufferId>,
2795 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2796 sticky_header_excerpt_id: Option<ExcerptId>,
2797 cx: &mut WindowContext,
2798 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2799 let (fixed_blocks, non_fixed_blocks) = snapshot
2800 .blocks_in_range(rows.clone())
2801 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2802
2803 let mut focused_block = self
2804 .editor
2805 .update(cx, |editor, _| editor.take_focused_block());
2806 let mut fixed_block_max_width = Pixels::ZERO;
2807 let mut blocks = Vec::new();
2808 let mut resized_blocks = HashMap::default();
2809
2810 for (row, block) in fixed_blocks {
2811 let block_id = block.id();
2812
2813 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2814 focused_block = None;
2815 }
2816
2817 let (element, element_size) = self.render_block(
2818 block,
2819 AvailableSpace::MinContent,
2820 block_id,
2821 row,
2822 snapshot,
2823 text_x,
2824 &rows,
2825 line_layouts,
2826 gutter_dimensions,
2827 line_height,
2828 em_width,
2829 text_hitbox,
2830 editor_width,
2831 scroll_width,
2832 &mut resized_blocks,
2833 selections,
2834 selected_buffer_ids,
2835 is_row_soft_wrapped,
2836 sticky_header_excerpt_id,
2837 cx,
2838 );
2839 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2840 blocks.push(BlockLayout {
2841 id: block_id,
2842 row: Some(row),
2843 element,
2844 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2845 style: BlockStyle::Fixed,
2846 });
2847 }
2848
2849 for (row, block) in non_fixed_blocks {
2850 let style = block.style();
2851 let width = match style {
2852 BlockStyle::Sticky => hitbox.size.width,
2853 BlockStyle::Flex => hitbox
2854 .size
2855 .width
2856 .max(fixed_block_max_width)
2857 .max(gutter_dimensions.width + *scroll_width),
2858 BlockStyle::Fixed => unreachable!(),
2859 };
2860 let block_id = block.id();
2861
2862 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2863 focused_block = None;
2864 }
2865
2866 let (element, element_size) = self.render_block(
2867 block,
2868 width.into(),
2869 block_id,
2870 row,
2871 snapshot,
2872 text_x,
2873 &rows,
2874 line_layouts,
2875 gutter_dimensions,
2876 line_height,
2877 em_width,
2878 text_hitbox,
2879 editor_width,
2880 scroll_width,
2881 &mut resized_blocks,
2882 selections,
2883 selected_buffer_ids,
2884 is_row_soft_wrapped,
2885 sticky_header_excerpt_id,
2886 cx,
2887 );
2888
2889 blocks.push(BlockLayout {
2890 id: block_id,
2891 row: Some(row),
2892 element,
2893 available_space: size(width.into(), element_size.height.into()),
2894 style,
2895 });
2896 }
2897
2898 if let Some(focused_block) = focused_block {
2899 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2900 if focus_handle.is_focused(cx) {
2901 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2902 let style = block.style();
2903 let width = match style {
2904 BlockStyle::Fixed => AvailableSpace::MinContent,
2905 BlockStyle::Flex => AvailableSpace::Definite(
2906 hitbox
2907 .size
2908 .width
2909 .max(fixed_block_max_width)
2910 .max(gutter_dimensions.width + *scroll_width),
2911 ),
2912 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2913 };
2914
2915 let (element, element_size) = self.render_block(
2916 &block,
2917 width,
2918 focused_block.id,
2919 rows.end,
2920 snapshot,
2921 text_x,
2922 &rows,
2923 line_layouts,
2924 gutter_dimensions,
2925 line_height,
2926 em_width,
2927 text_hitbox,
2928 editor_width,
2929 scroll_width,
2930 &mut resized_blocks,
2931 selections,
2932 selected_buffer_ids,
2933 is_row_soft_wrapped,
2934 sticky_header_excerpt_id,
2935 cx,
2936 );
2937
2938 blocks.push(BlockLayout {
2939 id: block.id(),
2940 row: None,
2941 element,
2942 available_space: size(width, element_size.height.into()),
2943 style,
2944 });
2945 }
2946 }
2947 }
2948 }
2949
2950 if resized_blocks.is_empty() {
2951 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2952 Ok(blocks)
2953 } else {
2954 Err(resized_blocks)
2955 }
2956 }
2957
2958 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2959 /// a restart of rendering for the editor based on the new sizes.
2960 fn layout_blocks(
2961 &self,
2962 blocks: &mut Vec<BlockLayout>,
2963 block_starts: &mut HashSet<DisplayRow>,
2964 hitbox: &Hitbox,
2965 line_height: Pixels,
2966 scroll_pixel_position: gpui::Point<Pixels>,
2967 cx: &mut WindowContext,
2968 ) {
2969 for block in blocks {
2970 let mut origin = if let Some(row) = block.row {
2971 block_starts.insert(row);
2972 hitbox.origin
2973 + point(
2974 Pixels::ZERO,
2975 row.as_f32() * line_height - scroll_pixel_position.y,
2976 )
2977 } else {
2978 // Position the block outside the visible area
2979 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2980 };
2981
2982 if !matches!(block.style, BlockStyle::Sticky) {
2983 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2984 }
2985
2986 let focus_handle = block
2987 .element
2988 .prepaint_as_root(origin, block.available_space, cx);
2989
2990 if let Some(focus_handle) = focus_handle {
2991 self.editor.update(cx, |editor, _cx| {
2992 editor.set_focused_block(FocusedBlock {
2993 id: block.id,
2994 focus_handle: focus_handle.downgrade(),
2995 });
2996 });
2997 }
2998 }
2999 }
3000
3001 #[allow(clippy::too_many_arguments)]
3002 fn layout_sticky_buffer_header(
3003 &self,
3004 StickyHeaderExcerpt {
3005 excerpt,
3006 next_excerpt_controls_present,
3007 next_buffer_row,
3008 }: StickyHeaderExcerpt<'_>,
3009 scroll_position: f32,
3010 line_height: Pixels,
3011 snapshot: &EditorSnapshot,
3012 hitbox: &Hitbox,
3013 selected_buffer_ids: &Vec<BufferId>,
3014 cx: &mut WindowContext,
3015 ) -> AnyElement {
3016 let jump_data = header_jump_data(
3017 snapshot,
3018 DisplayRow(scroll_position as u32),
3019 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3020 excerpt,
3021 );
3022
3023 let editor_bg_color = cx.theme().colors().editor_background;
3024
3025 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3026
3027 let mut header = v_flex()
3028 .relative()
3029 .child(
3030 div()
3031 .w(hitbox.bounds.size.width)
3032 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3033 .bg(linear_gradient(
3034 0.,
3035 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3036 linear_color_stop(editor_bg_color, 0.6),
3037 ))
3038 .absolute()
3039 .top_0(),
3040 )
3041 .child(
3042 self.render_buffer_header(excerpt, false, selected, jump_data, cx)
3043 .into_any_element(),
3044 )
3045 .into_any_element();
3046
3047 let mut origin = hitbox.origin;
3048
3049 if let Some(next_buffer_row) = next_buffer_row {
3050 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3051
3052 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3053
3054 if next_excerpt_controls_present {
3055 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3056 }
3057
3058 let offset = scroll_position - max_row as f32;
3059
3060 if offset > 0.0 {
3061 origin.y -= Pixels(offset) * line_height;
3062 }
3063 }
3064
3065 let size = size(
3066 AvailableSpace::Definite(hitbox.size.width),
3067 AvailableSpace::MinContent,
3068 );
3069
3070 header.prepaint_as_root(origin, size, cx);
3071
3072 header
3073 }
3074
3075 #[allow(clippy::too_many_arguments)]
3076 fn layout_context_menu(
3077 &self,
3078 line_height: Pixels,
3079 text_hitbox: &Hitbox,
3080 content_origin: gpui::Point<Pixels>,
3081 start_row: DisplayRow,
3082 scroll_pixel_position: gpui::Point<Pixels>,
3083 line_layouts: &[LineWithInvisibles],
3084 newest_selection_head: DisplayPoint,
3085 gutter_overshoot: Pixels,
3086 cx: &mut WindowContext,
3087 ) {
3088 let Some(context_menu_origin) = self
3089 .editor
3090 .read(cx)
3091 .context_menu_origin(newest_selection_head)
3092 else {
3093 return;
3094 };
3095 let target_position = content_origin
3096 + match context_menu_origin {
3097 crate::ContextMenuOrigin::EditorPoint(display_point) => {
3098 let cursor_row_layout =
3099 &line_layouts[display_point.row().minus(start_row) as usize];
3100 gpui::Point {
3101 x: cmp::max(
3102 px(0.),
3103 cursor_row_layout.x_for_index(display_point.column() as usize)
3104 - scroll_pixel_position.x,
3105 ),
3106 y: cmp::max(
3107 px(0.),
3108 display_point.row().next_row().as_f32() * line_height
3109 - scroll_pixel_position.y,
3110 ),
3111 }
3112 }
3113 crate::ContextMenuOrigin::GutterIndicator(row) => {
3114 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the indicator than just a plain first column of the
3115 // text field.
3116 gpui::Point {
3117 x: -gutter_overshoot,
3118 y: row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3119 }
3120 }
3121 };
3122
3123 let viewport_bounds = Bounds::new(Default::default(), cx.viewport_size()).extend(Edges {
3124 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3125 ..Default::default()
3126 });
3127
3128 // If the context menu's max height won't fit below, then flip it above the line and display
3129 // it in reverse order. If the available space above is less than below.
3130 let unconstrained_max_height = line_height * 12. + POPOVER_Y_PADDING;
3131 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3132 let bottom_y_when_flipped = target_position.y - line_height;
3133 let available_above = bottom_y_when_flipped - text_hitbox.top();
3134 let available_below = text_hitbox.bottom() - target_position.y;
3135 let y_overflows_below = unconstrained_max_height > available_below;
3136 let mut y_flipped = y_overflows_below && available_above > available_below;
3137 let mut height = cmp::min(
3138 unconstrained_max_height,
3139 if y_flipped {
3140 available_above
3141 } else {
3142 available_below
3143 },
3144 );
3145
3146 // If less than 3 lines fit within the text bounds, instead fit within the window.
3147 if height < min_height {
3148 let available_above = bottom_y_when_flipped;
3149 let available_below = viewport_bounds.bottom() - target_position.y;
3150 if available_below > 3. * line_height {
3151 y_flipped = false;
3152 height = min_height;
3153 } else if available_above > 3. * line_height {
3154 y_flipped = true;
3155 height = min_height;
3156 } else if available_above > available_below {
3157 y_flipped = true;
3158 height = available_above;
3159 } else {
3160 y_flipped = false;
3161 height = available_below;
3162 }
3163 }
3164
3165 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3166
3167 // TODO(mgsloan): use viewport_bounds.width as a max width when rendering menu.
3168 let Some(mut menu_element) = self.editor.update(cx, |editor, cx| {
3169 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, cx)
3170 }) else {
3171 return;
3172 };
3173
3174 let menu_size = menu_element.layout_as_root(AvailableSpace::min_size(), cx);
3175 let menu_position = gpui::Point {
3176 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3177 // overflow. Include space for the scrollbar.
3178 x: target_position
3179 .x
3180 .min((viewport_bounds.right() - menu_size.width).max(Pixels::ZERO)),
3181 y: if y_flipped {
3182 bottom_y_when_flipped - menu_size.height
3183 } else {
3184 target_position.y
3185 },
3186 };
3187 cx.defer_draw(menu_element, menu_position, 1);
3188
3189 // Layout documentation aside
3190 let menu_bounds = Bounds::new(menu_position, menu_size);
3191 let max_menu_size = size(menu_size.width, unconstrained_max_height);
3192 let max_menu_bounds = if y_flipped {
3193 Bounds::new(
3194 point(
3195 menu_position.x,
3196 bottom_y_when_flipped - max_menu_size.height,
3197 ),
3198 max_menu_size,
3199 )
3200 } else {
3201 Bounds::new(target_position, max_menu_size)
3202 };
3203 self.layout_context_menu_aside(
3204 text_hitbox,
3205 y_flipped,
3206 menu_position,
3207 menu_bounds,
3208 max_menu_bounds,
3209 unconstrained_max_height,
3210 line_height,
3211 viewport_bounds,
3212 cx,
3213 );
3214 }
3215
3216 #[allow(clippy::too_many_arguments)]
3217 fn layout_context_menu_aside(
3218 &self,
3219 text_hitbox: &Hitbox,
3220 y_flipped: bool,
3221 menu_position: gpui::Point<Pixels>,
3222 menu_bounds: Bounds<Pixels>,
3223 max_menu_bounds: Bounds<Pixels>,
3224 max_height: Pixels,
3225 line_height: Pixels,
3226 viewport_bounds: Bounds<Pixels>,
3227 cx: &mut WindowContext,
3228 ) {
3229 let mut extend_amount = Edges::all(MENU_GAP);
3230 // Extend to include the cursored line to avoid overlapping it.
3231 if y_flipped {
3232 extend_amount.bottom = line_height;
3233 } else {
3234 extend_amount.top = line_height;
3235 }
3236 let target_bounds = menu_bounds.extend(extend_amount);
3237 let max_target_bounds = max_menu_bounds.extend(extend_amount);
3238
3239 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3240 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH {
3241 let max_width = cmp::min(
3242 available_within_viewport.right - px(1.),
3243 MENU_ASIDE_MAX_WIDTH,
3244 );
3245 let Some(mut aside) =
3246 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3247 else {
3248 return;
3249 };
3250 aside.layout_as_root(AvailableSpace::min_size(), cx);
3251 let right_position = point(target_bounds.right(), menu_position.y);
3252 Some((aside, right_position))
3253 } else {
3254 let max_size = size(
3255 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3256 // won't be needed here.
3257 cmp::min(
3258 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3259 viewport_bounds.right(),
3260 ),
3261 cmp::min(
3262 max_height,
3263 cmp::max(
3264 available_within_viewport.top,
3265 available_within_viewport.bottom,
3266 ),
3267 ) - POPOVER_Y_PADDING,
3268 );
3269 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3270 return;
3271 };
3272 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), cx);
3273
3274 let top_position = point(menu_position.x, target_bounds.top() - actual_size.height);
3275 let bottom_position = point(menu_position.x, target_bounds.bottom());
3276
3277 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3278 // Prefer to fit on the same side of the line as the menu, then on the other side of
3279 // the line.
3280 if !y_flipped && wanted.height < available.bottom {
3281 Some(bottom_position)
3282 } else if !y_flipped && wanted.height < available.top {
3283 Some(top_position)
3284 } else if y_flipped && wanted.height < available.top {
3285 Some(top_position)
3286 } else if y_flipped && wanted.height < available.bottom {
3287 Some(bottom_position)
3288 } else {
3289 None
3290 }
3291 };
3292
3293 // Prefer choosing a direction using max sizes rather than actual size for stability.
3294 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3295 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3296 let aside_position = fit_within(available_within_text, wanted)
3297 // Fallback: fit max size in window.
3298 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3299 // Fallback: fit actual size in window.
3300 .or_else(|| fit_within(available_within_viewport, actual_size));
3301
3302 aside_position.map(|position| (aside, position))
3303 };
3304
3305 // Skip drawing if it doesn't fit anywhere.
3306 if let Some((aside, position)) = positioned_aside {
3307 cx.defer_draw(aside, position, 1);
3308 }
3309 }
3310
3311 fn render_context_menu_aside(
3312 &self,
3313 max_size: Size<Pixels>,
3314 cx: &mut WindowContext,
3315 ) -> Option<AnyElement> {
3316 if max_size.width < px(100.) || max_size.height < px(12.) {
3317 None
3318 } else {
3319 self.editor.update(cx, |editor, cx| {
3320 editor.render_context_menu_aside(&self.style, max_size, cx)
3321 })
3322 }
3323 }
3324
3325 #[allow(clippy::too_many_arguments)]
3326 fn layout_inline_completion_popover(
3327 &self,
3328 text_bounds: &Bounds<Pixels>,
3329 editor_snapshot: &EditorSnapshot,
3330 visible_row_range: Range<DisplayRow>,
3331 scroll_top: f32,
3332 scroll_bottom: f32,
3333 line_layouts: &[LineWithInvisibles],
3334 line_height: Pixels,
3335 scroll_pixel_position: gpui::Point<Pixels>,
3336 editor_width: Pixels,
3337 style: &EditorStyle,
3338 cx: &mut WindowContext,
3339 ) -> Option<AnyElement> {
3340 const PADDING_X: Pixels = Pixels(24.);
3341 const PADDING_Y: Pixels = Pixels(2.);
3342
3343 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3344
3345 match &active_inline_completion.completion {
3346 InlineCompletion::Move(target_position) => {
3347 let target_display_point = target_position.to_display_point(editor_snapshot);
3348 if target_display_point.row().as_f32() < scroll_top {
3349 let mut element = inline_completion_tab_indicator(
3350 "Jump to Edit",
3351 Some(IconName::ArrowUp),
3352 cx,
3353 );
3354 let size = element.layout_as_root(AvailableSpace::min_size(), cx);
3355 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3356 element.prepaint_at(text_bounds.origin + offset, cx);
3357 Some(element)
3358 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3359 let mut element = inline_completion_tab_indicator(
3360 "Jump to Edit",
3361 Some(IconName::ArrowDown),
3362 cx,
3363 );
3364 let size = element.layout_as_root(AvailableSpace::min_size(), cx);
3365 let offset = point(
3366 (text_bounds.size.width - size.width) / 2.,
3367 text_bounds.size.height - size.height - PADDING_Y,
3368 );
3369 element.prepaint_at(text_bounds.origin + offset, cx);
3370 Some(element)
3371 } else {
3372 let mut element = inline_completion_tab_indicator("Jump to Edit", None, cx);
3373
3374 let target_line_end = DisplayPoint::new(
3375 target_display_point.row(),
3376 editor_snapshot.line_len(target_display_point.row()),
3377 );
3378 let origin = self.editor.update(cx, |editor, cx| {
3379 editor.display_to_pixel_point(target_line_end, editor_snapshot, cx)
3380 })?;
3381 element.prepaint_as_root(
3382 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3383 AvailableSpace::min_size(),
3384 cx,
3385 );
3386 Some(element)
3387 }
3388 }
3389 InlineCompletion::Edit { edits, single_line } => {
3390 if self.editor.read(cx).has_active_completions_menu() {
3391 return None;
3392 }
3393
3394 let edit_start = edits
3395 .first()
3396 .unwrap()
3397 .0
3398 .start
3399 .to_display_point(editor_snapshot);
3400 let edit_end = edits
3401 .last()
3402 .unwrap()
3403 .0
3404 .end
3405 .to_display_point(editor_snapshot);
3406
3407 let is_visible = visible_row_range.contains(&edit_start.row())
3408 || visible_row_range.contains(&edit_end.row());
3409 if !is_visible {
3410 return None;
3411 }
3412
3413 if all_edits_insertions_or_deletions(edits, &editor_snapshot.buffer_snapshot) {
3414 if *single_line {
3415 let range = &edits.first()?.0;
3416 let target_display_point = range.end.to_display_point(editor_snapshot);
3417
3418 let target_line_end = DisplayPoint::new(
3419 target_display_point.row(),
3420 editor_snapshot.line_len(target_display_point.row()),
3421 );
3422 let origin = self.editor.update(cx, |editor, cx| {
3423 editor.display_to_pixel_point(target_line_end, editor_snapshot, cx)
3424 })?;
3425
3426 let mut element = inline_completion_tab_indicator("Accept", None, cx);
3427
3428 element.prepaint_as_root(
3429 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3430 AvailableSpace::min_size(),
3431 cx,
3432 );
3433
3434 return Some(element);
3435 }
3436
3437 return None;
3438 }
3439
3440 let crate::InlineCompletionText::Edit { text, highlights } =
3441 crate::inline_completion_edit_text(editor_snapshot, edits, false, cx)
3442 else {
3443 return None;
3444 };
3445
3446 let line_count = text.lines().count() + 1;
3447
3448 let longest_row =
3449 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3450 let longest_line_width = if visible_row_range.contains(&longest_row) {
3451 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3452 } else {
3453 layout_line(
3454 longest_row,
3455 editor_snapshot,
3456 style,
3457 editor_width,
3458 |_| false,
3459 cx,
3460 )
3461 .width
3462 };
3463
3464 let styled_text =
3465 gpui::StyledText::new(text.clone()).with_highlights(&style.text, highlights);
3466
3467 let mut element = div()
3468 .bg(cx.theme().colors().editor_background)
3469 .border_1()
3470 .border_color(cx.theme().colors().border)
3471 .rounded_md()
3472 .px_1()
3473 .child(styled_text)
3474 .into_any();
3475
3476 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), cx);
3477 let is_fully_visible =
3478 editor_width >= longest_line_width + PADDING_X + element_bounds.width;
3479
3480 let origin = if is_fully_visible {
3481 text_bounds.origin
3482 + point(
3483 longest_line_width + PADDING_X - scroll_pixel_position.x,
3484 edit_start.row().as_f32() * line_height - scroll_pixel_position.y,
3485 )
3486 } else {
3487 let target_above =
3488 DisplayRow(edit_start.row().0.saturating_sub(line_count as u32));
3489 let row_target = if visible_row_range
3490 .contains(&DisplayRow(target_above.0.saturating_sub(1)))
3491 {
3492 target_above
3493 } else {
3494 DisplayRow(edit_end.row().0 + 1)
3495 };
3496
3497 text_bounds.origin
3498 + point(
3499 -scroll_pixel_position.x,
3500 row_target.as_f32() * line_height - scroll_pixel_position.y,
3501 )
3502 };
3503
3504 element.prepaint_as_root(origin, element_bounds.into(), cx);
3505 Some(element)
3506 }
3507 }
3508 }
3509
3510 fn layout_mouse_context_menu(
3511 &self,
3512 editor_snapshot: &EditorSnapshot,
3513 visible_range: Range<DisplayRow>,
3514 content_origin: gpui::Point<Pixels>,
3515 cx: &mut WindowContext,
3516 ) -> Option<AnyElement> {
3517 let position = self.editor.update(cx, |editor, cx| {
3518 let visible_start_point = editor.display_to_pixel_point(
3519 DisplayPoint::new(visible_range.start, 0),
3520 editor_snapshot,
3521 cx,
3522 )?;
3523 let visible_end_point = editor.display_to_pixel_point(
3524 DisplayPoint::new(visible_range.end, 0),
3525 editor_snapshot,
3526 cx,
3527 )?;
3528
3529 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3530 let (source_display_point, position) = match mouse_context_menu.position {
3531 MenuPosition::PinnedToScreen(point) => (None, point),
3532 MenuPosition::PinnedToEditor { source, offset } => {
3533 let source_display_point = source.to_display_point(editor_snapshot);
3534 let source_point = editor.to_pixel_point(source, editor_snapshot, cx)?;
3535 let position = content_origin + source_point + offset;
3536 (Some(source_display_point), position)
3537 }
3538 };
3539
3540 let source_included = source_display_point.map_or(true, |source_display_point| {
3541 visible_range
3542 .to_inclusive()
3543 .contains(&source_display_point.row())
3544 });
3545 let position_included =
3546 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3547 if !source_included && !position_included {
3548 None
3549 } else {
3550 Some(position)
3551 }
3552 })?;
3553
3554 let mut element = self.editor.update(cx, |editor, _| {
3555 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3556 let context_menu = mouse_context_menu.context_menu.clone();
3557
3558 Some(
3559 deferred(
3560 anchored()
3561 .position(position)
3562 .child(context_menu)
3563 .anchor(Corner::TopLeft)
3564 .snap_to_window_with_margin(px(8.)),
3565 )
3566 .with_priority(1)
3567 .into_any(),
3568 )
3569 })?;
3570
3571 element.prepaint_as_root(position, AvailableSpace::min_size(), cx);
3572 Some(element)
3573 }
3574
3575 #[allow(clippy::too_many_arguments)]
3576 fn layout_hover_popovers(
3577 &self,
3578 snapshot: &EditorSnapshot,
3579 hitbox: &Hitbox,
3580 text_hitbox: &Hitbox,
3581 visible_display_row_range: Range<DisplayRow>,
3582 content_origin: gpui::Point<Pixels>,
3583 scroll_pixel_position: gpui::Point<Pixels>,
3584 line_layouts: &[LineWithInvisibles],
3585 line_height: Pixels,
3586 em_width: Pixels,
3587 cx: &mut WindowContext,
3588 ) {
3589 struct MeasuredHoverPopover {
3590 element: AnyElement,
3591 size: Size<Pixels>,
3592 horizontal_offset: Pixels,
3593 }
3594
3595 let max_size = size(
3596 (120. * em_width) // Default size
3597 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3598 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3599 (16. * line_height) // Default size
3600 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3601 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3602 );
3603
3604 let hover_popovers = self.editor.update(cx, |editor, cx| {
3605 editor
3606 .hover_state
3607 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3608 });
3609 let Some((position, hover_popovers)) = hover_popovers else {
3610 return;
3611 };
3612
3613 // This is safe because we check on layout whether the required row is available
3614 let hovered_row_layout =
3615 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3616
3617 // Compute Hovered Point
3618 let x =
3619 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3620 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3621 let hovered_point = content_origin + point(x, y);
3622
3623 let mut overall_height = Pixels::ZERO;
3624 let mut measured_hover_popovers = Vec::new();
3625 for mut hover_popover in hover_popovers {
3626 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), cx);
3627 let horizontal_offset =
3628 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3629
3630 overall_height += HOVER_POPOVER_GAP + size.height;
3631
3632 measured_hover_popovers.push(MeasuredHoverPopover {
3633 element: hover_popover,
3634 size,
3635 horizontal_offset,
3636 });
3637 }
3638 overall_height += HOVER_POPOVER_GAP;
3639
3640 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
3641 let mut occlusion = div()
3642 .size_full()
3643 .occlude()
3644 .on_mouse_move(|_, cx| cx.stop_propagation())
3645 .into_any_element();
3646 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
3647 cx.defer_draw(occlusion, origin, 2);
3648 }
3649
3650 if hovered_point.y > overall_height {
3651 // There is enough space above. Render popovers above the hovered point
3652 let mut current_y = hovered_point.y;
3653 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3654 let size = popover.size;
3655 let popover_origin = point(
3656 hovered_point.x + popover.horizontal_offset,
3657 current_y - size.height,
3658 );
3659
3660 cx.defer_draw(popover.element, popover_origin, 2);
3661 if position != itertools::Position::Last {
3662 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3663 draw_occluder(size.width, origin, cx);
3664 }
3665
3666 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3667 }
3668 } else {
3669 // There is not enough space above. Render popovers below the hovered point
3670 let mut current_y = hovered_point.y + line_height;
3671 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3672 let size = popover.size;
3673 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3674
3675 cx.defer_draw(popover.element, popover_origin, 2);
3676 if position != itertools::Position::Last {
3677 let origin = point(popover_origin.x, popover_origin.y + size.height);
3678 draw_occluder(size.width, origin, cx);
3679 }
3680
3681 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3682 }
3683 }
3684 }
3685
3686 #[allow(clippy::too_many_arguments)]
3687 fn layout_signature_help(
3688 &self,
3689 hitbox: &Hitbox,
3690 content_origin: gpui::Point<Pixels>,
3691 scroll_pixel_position: gpui::Point<Pixels>,
3692 newest_selection_head: Option<DisplayPoint>,
3693 start_row: DisplayRow,
3694 line_layouts: &[LineWithInvisibles],
3695 line_height: Pixels,
3696 em_width: Pixels,
3697 cx: &mut WindowContext,
3698 ) {
3699 if !self.editor.focus_handle(cx).is_focused(cx) {
3700 return;
3701 }
3702 let Some(newest_selection_head) = newest_selection_head else {
3703 return;
3704 };
3705 let selection_row = newest_selection_head.row();
3706 if selection_row < start_row {
3707 return;
3708 }
3709 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
3710 else {
3711 return;
3712 };
3713
3714 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
3715 - scroll_pixel_position.x
3716 + content_origin.x;
3717 let start_y =
3718 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
3719
3720 let max_size = size(
3721 (120. * em_width) // Default size
3722 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3723 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3724 (16. * line_height) // Default size
3725 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3726 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3727 );
3728
3729 let maybe_element = self.editor.update(cx, |editor, cx| {
3730 if let Some(popover) = editor.signature_help_state.popover_mut() {
3731 let element = popover.render(
3732 &self.style,
3733 max_size,
3734 editor.workspace.as_ref().map(|(w, _)| w.clone()),
3735 cx,
3736 );
3737 Some(element)
3738 } else {
3739 None
3740 }
3741 });
3742 if let Some(mut element) = maybe_element {
3743 let window_size = cx.viewport_size();
3744 let size = element.layout_as_root(Size::<AvailableSpace>::default(), cx);
3745 let mut point = point(start_x, start_y - size.height);
3746
3747 // Adjusting to ensure the popover does not overflow in the X-axis direction.
3748 if point.x + size.width >= window_size.width {
3749 point.x = window_size.width - size.width;
3750 }
3751
3752 cx.defer_draw(element, point, 1)
3753 }
3754 }
3755
3756 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
3757 cx.paint_layer(layout.hitbox.bounds, |cx| {
3758 let scroll_top = layout.position_map.snapshot.scroll_position().y;
3759 let gutter_bg = cx.theme().colors().editor_gutter_background;
3760 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
3761 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
3762
3763 if let EditorMode::Full = layout.mode {
3764 let mut active_rows = layout.active_rows.iter().peekable();
3765 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
3766 let mut end_row = start_row.0;
3767 while active_rows
3768 .peek()
3769 .map_or(false, |(active_row, has_selection)| {
3770 active_row.0 == end_row + 1
3771 && *has_selection == contains_non_empty_selection
3772 })
3773 {
3774 active_rows.next().unwrap();
3775 end_row += 1;
3776 }
3777
3778 if !contains_non_empty_selection {
3779 let highlight_h_range =
3780 match layout.position_map.snapshot.current_line_highlight {
3781 CurrentLineHighlight::Gutter => Some(Range {
3782 start: layout.hitbox.left(),
3783 end: layout.gutter_hitbox.right(),
3784 }),
3785 CurrentLineHighlight::Line => Some(Range {
3786 start: layout.text_hitbox.bounds.left(),
3787 end: layout.text_hitbox.bounds.right(),
3788 }),
3789 CurrentLineHighlight::All => Some(Range {
3790 start: layout.hitbox.left(),
3791 end: layout.hitbox.right(),
3792 }),
3793 CurrentLineHighlight::None => None,
3794 };
3795 if let Some(range) = highlight_h_range {
3796 let active_line_bg = cx.theme().colors().editor_active_line_background;
3797 let bounds = Bounds {
3798 origin: point(
3799 range.start,
3800 layout.hitbox.origin.y
3801 + (start_row.as_f32() - scroll_top)
3802 * layout.position_map.line_height,
3803 ),
3804 size: size(
3805 range.end - range.start,
3806 layout.position_map.line_height
3807 * (end_row - start_row.0 + 1) as f32,
3808 ),
3809 };
3810 cx.paint_quad(fill(bounds, active_line_bg));
3811 }
3812 }
3813 }
3814
3815 let mut paint_highlight =
3816 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
3817 let origin = point(
3818 layout.hitbox.origin.x,
3819 layout.hitbox.origin.y
3820 + (highlight_row_start.as_f32() - scroll_top)
3821 * layout.position_map.line_height,
3822 );
3823 let size = size(
3824 layout.hitbox.size.width,
3825 layout.position_map.line_height
3826 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
3827 );
3828 cx.paint_quad(fill(Bounds { origin, size }, color));
3829 };
3830
3831 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
3832 for (&new_row, &new_color) in &layout.highlighted_rows {
3833 match &mut current_paint {
3834 Some((current_color, current_range)) => {
3835 let current_color = *current_color;
3836 let new_range_started = current_color != new_color
3837 || current_range.end.next_row() != new_row;
3838 if new_range_started {
3839 paint_highlight(
3840 current_range.start,
3841 current_range.end,
3842 current_color,
3843 );
3844 current_paint = Some((new_color, new_row..new_row));
3845 continue;
3846 } else {
3847 current_range.end = current_range.end.next_row();
3848 }
3849 }
3850 None => current_paint = Some((new_color, new_row..new_row)),
3851 };
3852 }
3853 if let Some((color, range)) = current_paint {
3854 paint_highlight(range.start, range.end, color);
3855 }
3856
3857 let scroll_left =
3858 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
3859
3860 for (wrap_position, active) in layout.wrap_guides.iter() {
3861 let x = (layout.text_hitbox.origin.x
3862 + *wrap_position
3863 + layout.position_map.em_width / 2.)
3864 - scroll_left;
3865
3866 let show_scrollbars = {
3867 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
3868
3869 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
3870 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
3871 };
3872
3873 if x < layout.text_hitbox.origin.x
3874 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
3875 {
3876 continue;
3877 }
3878
3879 let color = if *active {
3880 cx.theme().colors().editor_active_wrap_guide
3881 } else {
3882 cx.theme().colors().editor_wrap_guide
3883 };
3884 cx.paint_quad(fill(
3885 Bounds {
3886 origin: point(x, layout.text_hitbox.origin.y),
3887 size: size(px(1.), layout.text_hitbox.size.height),
3888 },
3889 color,
3890 ));
3891 }
3892 }
3893 })
3894 }
3895
3896 fn paint_indent_guides(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3897 let Some(indent_guides) = &layout.indent_guides else {
3898 return;
3899 };
3900
3901 let faded_color = |color: Hsla, alpha: f32| {
3902 let mut faded = color;
3903 faded.a = alpha;
3904 faded
3905 };
3906
3907 for indent_guide in indent_guides {
3908 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
3909 let settings = indent_guide.settings;
3910
3911 // TODO fixed for now, expose them through themes later
3912 const INDENT_AWARE_ALPHA: f32 = 0.2;
3913 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
3914 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
3915 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
3916
3917 let line_color = match (settings.coloring, indent_guide.active) {
3918 (IndentGuideColoring::Disabled, _) => None,
3919 (IndentGuideColoring::Fixed, false) => {
3920 Some(cx.theme().colors().editor_indent_guide)
3921 }
3922 (IndentGuideColoring::Fixed, true) => {
3923 Some(cx.theme().colors().editor_indent_guide_active)
3924 }
3925 (IndentGuideColoring::IndentAware, false) => {
3926 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
3927 }
3928 (IndentGuideColoring::IndentAware, true) => {
3929 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
3930 }
3931 };
3932
3933 let background_color = match (settings.background_coloring, indent_guide.active) {
3934 (IndentGuideBackgroundColoring::Disabled, _) => None,
3935 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
3936 indent_accent_colors,
3937 INDENT_AWARE_BACKGROUND_ALPHA,
3938 )),
3939 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
3940 indent_accent_colors,
3941 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
3942 )),
3943 };
3944
3945 let requested_line_width = if indent_guide.active {
3946 settings.active_line_width
3947 } else {
3948 settings.line_width
3949 }
3950 .clamp(1, 10);
3951 let mut line_indicator_width = 0.;
3952 if let Some(color) = line_color {
3953 cx.paint_quad(fill(
3954 Bounds {
3955 origin: indent_guide.origin,
3956 size: size(px(requested_line_width as f32), indent_guide.length),
3957 },
3958 color,
3959 ));
3960 line_indicator_width = requested_line_width as f32;
3961 }
3962
3963 if let Some(color) = background_color {
3964 let width = indent_guide.single_indent_width - px(line_indicator_width);
3965 cx.paint_quad(fill(
3966 Bounds {
3967 origin: point(
3968 indent_guide.origin.x + px(line_indicator_width),
3969 indent_guide.origin.y,
3970 ),
3971 size: size(width, indent_guide.length),
3972 },
3973 color,
3974 ));
3975 }
3976 }
3977 }
3978
3979 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3980 let is_singleton = self.editor.read(cx).is_singleton(cx);
3981
3982 let line_height = layout.position_map.line_height;
3983 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
3984
3985 for LineNumberLayout {
3986 shaped_line,
3987 hitbox,
3988 display_row,
3989 } in layout.line_numbers.values()
3990 {
3991 let Some(hitbox) = hitbox else {
3992 continue;
3993 };
3994
3995 let is_active = layout.active_rows.contains_key(&display_row);
3996
3997 let color = if is_active {
3998 cx.theme().colors().editor_active_line_number
3999 } else if !is_singleton && hitbox.is_hovered(cx) {
4000 cx.theme().colors().editor_hover_line_number
4001 } else {
4002 cx.theme().colors().editor_line_number
4003 };
4004
4005 let Some(line) = self
4006 .shape_line_number(shaped_line.text.clone(), color, cx)
4007 .log_err()
4008 else {
4009 continue;
4010 };
4011 let Some(()) = line.paint(hitbox.origin, line_height, cx).log_err() else {
4012 continue;
4013 };
4014 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4015 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4016 if is_singleton {
4017 cx.set_cursor_style(CursorStyle::IBeam, hitbox);
4018 } else {
4019 cx.set_cursor_style(CursorStyle::PointingHand, hitbox);
4020 }
4021 }
4022 }
4023
4024 fn paint_diff_hunks(layout: &mut EditorLayout, cx: &mut WindowContext) {
4025 if layout.display_hunks.is_empty() {
4026 return;
4027 }
4028
4029 let line_height = layout.position_map.line_height;
4030 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
4031 for (hunk, hitbox) in &layout.display_hunks {
4032 let hunk_to_paint = match hunk {
4033 DisplayDiffHunk::Folded { .. } => {
4034 let hunk_bounds = Self::diff_hunk_bounds(
4035 &layout.position_map.snapshot,
4036 line_height,
4037 layout.gutter_hitbox.bounds,
4038 hunk,
4039 );
4040 Some((
4041 hunk_bounds,
4042 cx.theme().status().modified,
4043 Corners::all(px(0.)),
4044 ))
4045 }
4046 DisplayDiffHunk::Unfolded { status, .. } => {
4047 hitbox.as_ref().map(|hunk_hitbox| match status {
4048 DiffHunkStatus::Added => (
4049 hunk_hitbox.bounds,
4050 cx.theme().status().created,
4051 Corners::all(px(0.)),
4052 ),
4053 DiffHunkStatus::Modified => (
4054 hunk_hitbox.bounds,
4055 cx.theme().status().modified,
4056 Corners::all(px(0.)),
4057 ),
4058 DiffHunkStatus::Removed => (
4059 Bounds::new(
4060 point(
4061 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4062 hunk_hitbox.origin.y,
4063 ),
4064 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4065 ),
4066 cx.theme().status().deleted,
4067 Corners::all(1. * line_height),
4068 ),
4069 })
4070 }
4071 };
4072
4073 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4074 cx.paint_quad(quad(
4075 hunk_bounds,
4076 corner_radii,
4077 background_color,
4078 Edges::default(),
4079 transparent_black(),
4080 ));
4081 }
4082 }
4083 });
4084 }
4085
4086 pub(super) fn diff_hunk_bounds(
4087 snapshot: &EditorSnapshot,
4088 line_height: Pixels,
4089 gutter_bounds: Bounds<Pixels>,
4090 hunk: &DisplayDiffHunk,
4091 ) -> Bounds<Pixels> {
4092 let scroll_position = snapshot.scroll_position();
4093 let scroll_top = scroll_position.y * line_height;
4094
4095 match hunk {
4096 DisplayDiffHunk::Folded { display_row, .. } => {
4097 let start_y = display_row.as_f32() * line_height - scroll_top;
4098 let end_y = start_y + line_height;
4099
4100 let width = Self::diff_hunk_strip_width(line_height);
4101 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4102 let highlight_size = size(width, end_y - start_y);
4103 Bounds::new(highlight_origin, highlight_size)
4104 }
4105 DisplayDiffHunk::Unfolded {
4106 display_row_range,
4107 status,
4108 ..
4109 } => match status {
4110 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
4111 let start_row = display_row_range.start;
4112 let end_row = display_row_range.end;
4113 // If we're in a multibuffer, row range span might include an
4114 // excerpt header, so if we were to draw the marker straight away,
4115 // the hunk might include the rows of that header.
4116 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4117 // Instead, we simply check whether the range we're dealing with includes
4118 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4119 let end_row_in_current_excerpt = snapshot
4120 .blocks_in_range(start_row..end_row)
4121 .find_map(|(start_row, block)| {
4122 if matches!(block, Block::ExcerptBoundary { .. }) {
4123 Some(start_row)
4124 } else {
4125 None
4126 }
4127 })
4128 .unwrap_or(end_row);
4129
4130 let start_y = start_row.as_f32() * line_height - scroll_top;
4131 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4132
4133 let width = Self::diff_hunk_strip_width(line_height);
4134 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4135 let highlight_size = size(width, end_y - start_y);
4136 Bounds::new(highlight_origin, highlight_size)
4137 }
4138 DiffHunkStatus::Removed => {
4139 let row = display_row_range.start;
4140
4141 let offset = line_height / 2.;
4142 let start_y = row.as_f32() * line_height - offset - scroll_top;
4143 let end_y = start_y + line_height;
4144
4145 let width = (0.35 * line_height).floor();
4146 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4147 let highlight_size = size(width, end_y - start_y);
4148 Bounds::new(highlight_origin, highlight_size)
4149 }
4150 },
4151 }
4152 }
4153
4154 /// Returns the width of the diff strip that will be displayed in the gutter.
4155 pub(super) fn diff_hunk_strip_width(line_height: Pixels) -> Pixels {
4156 // We floor the value to prevent pixel rounding.
4157 (0.275 * line_height).floor()
4158 }
4159
4160 fn paint_gutter_indicators(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4161 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
4162 cx.with_element_namespace("crease_toggles", |cx| {
4163 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4164 crease_toggle.paint(cx);
4165 }
4166 });
4167
4168 for test_indicator in layout.test_indicators.iter_mut() {
4169 test_indicator.paint(cx);
4170 }
4171
4172 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4173 indicator.paint(cx);
4174 }
4175 });
4176 }
4177
4178 fn paint_gutter_highlights(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4179 for (_, hunk_hitbox) in &layout.display_hunks {
4180 if let Some(hunk_hitbox) = hunk_hitbox {
4181 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4182 }
4183 }
4184
4185 let show_git_gutter = layout
4186 .position_map
4187 .snapshot
4188 .show_git_diff_gutter
4189 .unwrap_or_else(|| {
4190 matches!(
4191 ProjectSettings::get_global(cx).git.git_gutter,
4192 Some(GitGutterSetting::TrackedFiles)
4193 )
4194 });
4195 if show_git_gutter {
4196 Self::paint_diff_hunks(layout, cx)
4197 }
4198
4199 let highlight_width = 0.275 * layout.position_map.line_height;
4200 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4201 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
4202 for (range, color) in &layout.highlighted_gutter_ranges {
4203 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4204 layout.visible_display_row_range.start - DisplayRow(1)
4205 } else {
4206 range.start.row()
4207 };
4208 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4209 layout.visible_display_row_range.end + DisplayRow(1)
4210 } else {
4211 range.end.row()
4212 };
4213
4214 let start_y = layout.gutter_hitbox.top()
4215 + start_row.0 as f32 * layout.position_map.line_height
4216 - layout.position_map.scroll_pixel_position.y;
4217 let end_y = layout.gutter_hitbox.top()
4218 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4219 - layout.position_map.scroll_pixel_position.y;
4220 let bounds = Bounds::from_corners(
4221 point(layout.gutter_hitbox.left(), start_y),
4222 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4223 );
4224 cx.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4225 }
4226 });
4227 }
4228
4229 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4230 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4231 return;
4232 };
4233
4234 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
4235 for mut blame_element in blamed_display_rows.into_iter() {
4236 blame_element.paint(cx);
4237 }
4238 })
4239 }
4240
4241 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4242 cx.with_content_mask(
4243 Some(ContentMask {
4244 bounds: layout.text_hitbox.bounds,
4245 }),
4246 |cx| {
4247 let cursor_style = if self
4248 .editor
4249 .read(cx)
4250 .hovered_link_state
4251 .as_ref()
4252 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4253 {
4254 CursorStyle::PointingHand
4255 } else {
4256 CursorStyle::IBeam
4257 };
4258 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
4259
4260 let invisible_display_ranges = self.paint_highlights(layout, cx);
4261 self.paint_lines(&invisible_display_ranges, layout, cx);
4262 self.paint_redactions(layout, cx);
4263 self.paint_cursors(layout, cx);
4264 self.paint_inline_blame(layout, cx);
4265 cx.with_element_namespace("crease_trailers", |cx| {
4266 for trailer in layout.crease_trailers.iter_mut().flatten() {
4267 trailer.element.paint(cx);
4268 }
4269 });
4270 },
4271 )
4272 }
4273
4274 fn paint_highlights(
4275 &mut self,
4276 layout: &mut EditorLayout,
4277 cx: &mut WindowContext,
4278 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4279 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
4280 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4281 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4282 for (range, color) in &layout.highlighted_ranges {
4283 self.paint_highlighted_range(
4284 range.clone(),
4285 *color,
4286 Pixels::ZERO,
4287 line_end_overshoot,
4288 layout,
4289 cx,
4290 );
4291 }
4292
4293 let corner_radius = 0.15 * layout.position_map.line_height;
4294
4295 for (player_color, selections) in &layout.selections {
4296 for selection in selections.iter() {
4297 self.paint_highlighted_range(
4298 selection.range.clone(),
4299 player_color.selection,
4300 corner_radius,
4301 corner_radius * 2.,
4302 layout,
4303 cx,
4304 );
4305
4306 if selection.is_local && !selection.range.is_empty() {
4307 invisible_display_ranges.push(selection.range.clone());
4308 }
4309 }
4310 }
4311 invisible_display_ranges
4312 })
4313 }
4314
4315 fn paint_lines(
4316 &mut self,
4317 invisible_display_ranges: &[Range<DisplayPoint>],
4318 layout: &mut EditorLayout,
4319 cx: &mut WindowContext,
4320 ) {
4321 let whitespace_setting = self
4322 .editor
4323 .read(cx)
4324 .buffer
4325 .read(cx)
4326 .settings_at(0, cx)
4327 .show_whitespaces;
4328
4329 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4330 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4331 line_with_invisibles.draw(
4332 layout,
4333 row,
4334 layout.content_origin,
4335 whitespace_setting,
4336 invisible_display_ranges,
4337 cx,
4338 )
4339 }
4340
4341 for line_element in &mut layout.line_elements {
4342 line_element.paint(cx);
4343 }
4344 }
4345
4346 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
4347 if layout.redacted_ranges.is_empty() {
4348 return;
4349 }
4350
4351 let line_end_overshoot = layout.line_end_overshoot();
4352
4353 // A softer than perfect black
4354 let redaction_color = gpui::rgb(0x0e1111);
4355
4356 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
4357 for range in layout.redacted_ranges.iter() {
4358 self.paint_highlighted_range(
4359 range.clone(),
4360 redaction_color.into(),
4361 Pixels::ZERO,
4362 line_end_overshoot,
4363 layout,
4364 cx,
4365 );
4366 }
4367 });
4368 }
4369
4370 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4371 for cursor in &mut layout.visible_cursors {
4372 cursor.paint(layout.content_origin, cx);
4373 }
4374 }
4375
4376 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4377 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4378
4379 if let Some(scrollbar_layout) = scrollbar_x {
4380 let hitbox = scrollbar_layout.hitbox.clone();
4381 let text_unit_size = scrollbar_layout.text_unit_size;
4382 let visible_range = scrollbar_layout.visible_range.clone();
4383 let thumb_bounds = scrollbar_layout.thumb_bounds();
4384
4385 if scrollbar_layout.visible {
4386 cx.paint_layer(hitbox.bounds, |cx| {
4387 cx.paint_quad(quad(
4388 hitbox.bounds,
4389 Corners::default(),
4390 cx.theme().colors().scrollbar_track_background,
4391 Edges {
4392 top: Pixels::ZERO,
4393 right: Pixels::ZERO,
4394 bottom: Pixels::ZERO,
4395 left: Pixels::ZERO,
4396 },
4397 cx.theme().colors().scrollbar_track_border,
4398 ));
4399
4400 cx.paint_quad(quad(
4401 thumb_bounds,
4402 Corners::default(),
4403 cx.theme().colors().scrollbar_thumb_background,
4404 Edges {
4405 top: Pixels::ZERO,
4406 right: Pixels::ZERO,
4407 bottom: Pixels::ZERO,
4408 left: ScrollbarLayout::BORDER_WIDTH,
4409 },
4410 cx.theme().colors().scrollbar_thumb_border,
4411 ));
4412 })
4413 }
4414
4415 cx.set_cursor_style(CursorStyle::Arrow, &hitbox);
4416
4417 cx.on_mouse_event({
4418 let editor = self.editor.clone();
4419
4420 // there may be a way to avoid this clone
4421 let hitbox = hitbox.clone();
4422
4423 let mut mouse_position = cx.mouse_position();
4424 move |event: &MouseMoveEvent, phase, cx| {
4425 if phase == DispatchPhase::Capture {
4426 return;
4427 }
4428
4429 editor.update(cx, |editor, cx| {
4430 if event.pressed_button == Some(MouseButton::Left)
4431 && editor
4432 .scroll_manager
4433 .is_dragging_scrollbar(Axis::Horizontal)
4434 {
4435 let x = mouse_position.x;
4436 let new_x = event.position.x;
4437 if (hitbox.left()..hitbox.right()).contains(&x) {
4438 let mut position = editor.scroll_position(cx);
4439
4440 position.x += (new_x - x) / text_unit_size;
4441 if position.x < 0.0 {
4442 position.x = 0.0;
4443 }
4444 editor.set_scroll_position(position, cx);
4445 }
4446
4447 cx.stop_propagation();
4448 } else {
4449 editor.scroll_manager.set_is_dragging_scrollbar(
4450 Axis::Horizontal,
4451 false,
4452 cx,
4453 );
4454
4455 if hitbox.is_hovered(cx) {
4456 editor.scroll_manager.show_scrollbar(cx);
4457 }
4458 }
4459 mouse_position = event.position;
4460 })
4461 }
4462 });
4463
4464 if self
4465 .editor
4466 .read(cx)
4467 .scroll_manager
4468 .is_dragging_scrollbar(Axis::Horizontal)
4469 {
4470 cx.on_mouse_event({
4471 let editor = self.editor.clone();
4472 move |_: &MouseUpEvent, phase, cx| {
4473 if phase == DispatchPhase::Capture {
4474 return;
4475 }
4476
4477 editor.update(cx, |editor, cx| {
4478 editor.scroll_manager.set_is_dragging_scrollbar(
4479 Axis::Horizontal,
4480 false,
4481 cx,
4482 );
4483 cx.stop_propagation();
4484 });
4485 }
4486 });
4487 } else {
4488 cx.on_mouse_event({
4489 let editor = self.editor.clone();
4490
4491 move |event: &MouseDownEvent, phase, cx| {
4492 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
4493 return;
4494 }
4495
4496 editor.update(cx, |editor, cx| {
4497 editor.scroll_manager.set_is_dragging_scrollbar(
4498 Axis::Horizontal,
4499 true,
4500 cx,
4501 );
4502
4503 let x = event.position.x;
4504
4505 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4506 let center_row =
4507 ((x - hitbox.left()) / text_unit_size).round() as u32;
4508 let top_row = center_row.saturating_sub(
4509 (visible_range.end - visible_range.start) as u32 / 2,
4510 );
4511
4512 let mut position = editor.scroll_position(cx);
4513 position.x = top_row as f32;
4514
4515 editor.set_scroll_position(position, cx);
4516 } else {
4517 editor.scroll_manager.show_scrollbar(cx);
4518 }
4519
4520 cx.stop_propagation();
4521 });
4522 }
4523 });
4524 }
4525 }
4526
4527 if let Some(scrollbar_layout) = scrollbar_y {
4528 let hitbox = scrollbar_layout.hitbox.clone();
4529 let text_unit_size = scrollbar_layout.text_unit_size;
4530 let visible_range = scrollbar_layout.visible_range.clone();
4531 let thumb_bounds = scrollbar_layout.thumb_bounds();
4532
4533 if scrollbar_layout.visible {
4534 cx.paint_layer(hitbox.bounds, |cx| {
4535 cx.paint_quad(quad(
4536 hitbox.bounds,
4537 Corners::default(),
4538 cx.theme().colors().scrollbar_track_background,
4539 Edges {
4540 top: Pixels::ZERO,
4541 right: Pixels::ZERO,
4542 bottom: Pixels::ZERO,
4543 left: ScrollbarLayout::BORDER_WIDTH,
4544 },
4545 cx.theme().colors().scrollbar_track_border,
4546 ));
4547
4548 let fast_markers =
4549 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4550 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4551 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, cx);
4552
4553 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4554 for marker in markers.iter().chain(&fast_markers) {
4555 let mut marker = marker.clone();
4556 marker.bounds.origin += hitbox.origin;
4557 cx.paint_quad(marker);
4558 }
4559
4560 cx.paint_quad(quad(
4561 thumb_bounds,
4562 Corners::default(),
4563 cx.theme().colors().scrollbar_thumb_background,
4564 Edges {
4565 top: Pixels::ZERO,
4566 right: Pixels::ZERO,
4567 bottom: Pixels::ZERO,
4568 left: ScrollbarLayout::BORDER_WIDTH,
4569 },
4570 cx.theme().colors().scrollbar_thumb_border,
4571 ));
4572 });
4573 }
4574
4575 cx.set_cursor_style(CursorStyle::Arrow, &hitbox);
4576
4577 cx.on_mouse_event({
4578 let editor = self.editor.clone();
4579
4580 let hitbox = hitbox.clone();
4581
4582 let mut mouse_position = cx.mouse_position();
4583 move |event: &MouseMoveEvent, phase, cx| {
4584 if phase == DispatchPhase::Capture {
4585 return;
4586 }
4587
4588 editor.update(cx, |editor, cx| {
4589 if event.pressed_button == Some(MouseButton::Left)
4590 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4591 {
4592 let y = mouse_position.y;
4593 let new_y = event.position.y;
4594 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4595 let mut position = editor.scroll_position(cx);
4596 position.y += (new_y - y) / text_unit_size;
4597 if position.y < 0.0 {
4598 position.y = 0.0;
4599 }
4600 editor.set_scroll_position(position, cx);
4601 }
4602 } else {
4603 editor.scroll_manager.set_is_dragging_scrollbar(
4604 Axis::Vertical,
4605 false,
4606 cx,
4607 );
4608
4609 if hitbox.is_hovered(cx) {
4610 editor.scroll_manager.show_scrollbar(cx);
4611 }
4612 }
4613 mouse_position = event.position;
4614 })
4615 }
4616 });
4617
4618 if self
4619 .editor
4620 .read(cx)
4621 .scroll_manager
4622 .is_dragging_scrollbar(Axis::Vertical)
4623 {
4624 cx.on_mouse_event({
4625 let editor = self.editor.clone();
4626 move |_: &MouseUpEvent, phase, cx| {
4627 if phase == DispatchPhase::Capture {
4628 return;
4629 }
4630
4631 editor.update(cx, |editor, cx| {
4632 editor.scroll_manager.set_is_dragging_scrollbar(
4633 Axis::Vertical,
4634 false,
4635 cx,
4636 );
4637 cx.stop_propagation();
4638 });
4639 }
4640 });
4641 } else {
4642 cx.on_mouse_event({
4643 let editor = self.editor.clone();
4644
4645 move |event: &MouseDownEvent, phase, cx| {
4646 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
4647 return;
4648 }
4649
4650 editor.update(cx, |editor, cx| {
4651 editor.scroll_manager.set_is_dragging_scrollbar(
4652 Axis::Vertical,
4653 true,
4654 cx,
4655 );
4656
4657 let y = event.position.y;
4658 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
4659 let center_row =
4660 ((y - hitbox.top()) / text_unit_size).round() as u32;
4661 let top_row = center_row.saturating_sub(
4662 (visible_range.end - visible_range.start) as u32 / 2,
4663 );
4664 let mut position = editor.scroll_position(cx);
4665 position.y = top_row as f32;
4666 editor.set_scroll_position(position, cx);
4667 } else {
4668 editor.scroll_manager.show_scrollbar(cx);
4669 }
4670
4671 cx.stop_propagation();
4672 });
4673 }
4674 });
4675 }
4676 }
4677 }
4678
4679 fn collect_fast_scrollbar_markers(
4680 &self,
4681 layout: &EditorLayout,
4682 scrollbar_layout: &ScrollbarLayout,
4683 cx: &mut WindowContext,
4684 ) -> Vec<PaintQuad> {
4685 const LIMIT: usize = 100;
4686 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
4687 return vec![];
4688 }
4689 let cursor_ranges = layout
4690 .cursors
4691 .iter()
4692 .map(|(point, color)| ColoredRange {
4693 start: point.row(),
4694 end: point.row(),
4695 color: *color,
4696 })
4697 .collect_vec();
4698 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
4699 }
4700
4701 fn refresh_slow_scrollbar_markers(
4702 &self,
4703 layout: &EditorLayout,
4704 scrollbar_layout: &ScrollbarLayout,
4705 cx: &mut WindowContext,
4706 ) {
4707 self.editor.update(cx, |editor, cx| {
4708 if !editor.is_singleton(cx)
4709 || !editor
4710 .scrollbar_marker_state
4711 .should_refresh(scrollbar_layout.hitbox.size)
4712 {
4713 return;
4714 }
4715
4716 let scrollbar_layout = scrollbar_layout.clone();
4717 let background_highlights = editor.background_highlights.clone();
4718 let snapshot = layout.position_map.snapshot.clone();
4719 let theme = cx.theme().clone();
4720 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
4721
4722 editor.scrollbar_marker_state.dirty = false;
4723 editor.scrollbar_marker_state.pending_refresh =
4724 Some(cx.spawn(|editor, mut cx| async move {
4725 let scrollbar_size = scrollbar_layout.hitbox.size;
4726 let scrollbar_markers = cx
4727 .background_executor()
4728 .spawn(async move {
4729 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
4730 let mut marker_quads = Vec::new();
4731 if scrollbar_settings.git_diff {
4732 let marker_row_ranges = snapshot
4733 .diff_map
4734 .diff_hunks(&snapshot.buffer_snapshot)
4735 .map(|hunk| {
4736 let start_display_row =
4737 MultiBufferPoint::new(hunk.row_range.start.0, 0)
4738 .to_display_point(&snapshot.display_snapshot)
4739 .row();
4740 let mut end_display_row =
4741 MultiBufferPoint::new(hunk.row_range.end.0, 0)
4742 .to_display_point(&snapshot.display_snapshot)
4743 .row();
4744 if end_display_row != start_display_row {
4745 end_display_row.0 -= 1;
4746 }
4747 let color = match hunk_status(&hunk) {
4748 DiffHunkStatus::Added => theme.status().created,
4749 DiffHunkStatus::Modified => theme.status().modified,
4750 DiffHunkStatus::Removed => theme.status().deleted,
4751 };
4752 ColoredRange {
4753 start: start_display_row,
4754 end: end_display_row,
4755 color,
4756 }
4757 });
4758
4759 marker_quads.extend(
4760 scrollbar_layout
4761 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
4762 );
4763 }
4764
4765 for (background_highlight_id, (_, background_ranges)) in
4766 background_highlights.iter()
4767 {
4768 let is_search_highlights = *background_highlight_id
4769 == TypeId::of::<BufferSearchHighlights>();
4770 let is_symbol_occurrences = *background_highlight_id
4771 == TypeId::of::<DocumentHighlightRead>()
4772 || *background_highlight_id
4773 == TypeId::of::<DocumentHighlightWrite>();
4774 if (is_search_highlights && scrollbar_settings.search_results)
4775 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
4776 {
4777 let mut color = theme.status().info;
4778 if is_symbol_occurrences {
4779 color.fade_out(0.5);
4780 }
4781 let marker_row_ranges = background_ranges.iter().map(|range| {
4782 let display_start = range
4783 .start
4784 .to_display_point(&snapshot.display_snapshot);
4785 let display_end =
4786 range.end.to_display_point(&snapshot.display_snapshot);
4787 ColoredRange {
4788 start: display_start.row(),
4789 end: display_end.row(),
4790 color,
4791 }
4792 });
4793 marker_quads.extend(
4794 scrollbar_layout
4795 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
4796 );
4797 }
4798 }
4799
4800 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
4801 let diagnostics = snapshot
4802 .buffer_snapshot
4803 .diagnostics_in_range(Point::zero()..max_point, false)
4804 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
4805 diagnostic,
4806 range: range.to_point(&snapshot.buffer_snapshot),
4807 })
4808 // Don't show diagnostics the user doesn't care about
4809 .filter(|diagnostic| {
4810 match (
4811 scrollbar_settings.diagnostics,
4812 diagnostic.diagnostic.severity,
4813 ) {
4814 (ScrollbarDiagnostics::All, _) => true,
4815 (
4816 ScrollbarDiagnostics::Error,
4817 DiagnosticSeverity::ERROR,
4818 ) => true,
4819 (
4820 ScrollbarDiagnostics::Warning,
4821 DiagnosticSeverity::ERROR
4822 | DiagnosticSeverity::WARNING,
4823 ) => true,
4824 (
4825 ScrollbarDiagnostics::Information,
4826 DiagnosticSeverity::ERROR
4827 | DiagnosticSeverity::WARNING
4828 | DiagnosticSeverity::INFORMATION,
4829 ) => true,
4830 (_, _) => false,
4831 }
4832 })
4833 // We want to sort by severity, in order to paint the most severe diagnostics last.
4834 .sorted_by_key(|diagnostic| {
4835 std::cmp::Reverse(diagnostic.diagnostic.severity)
4836 });
4837
4838 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
4839 let start_display = diagnostic
4840 .range
4841 .start
4842 .to_display_point(&snapshot.display_snapshot);
4843 let end_display = diagnostic
4844 .range
4845 .end
4846 .to_display_point(&snapshot.display_snapshot);
4847 let color = match diagnostic.diagnostic.severity {
4848 DiagnosticSeverity::ERROR => theme.status().error,
4849 DiagnosticSeverity::WARNING => theme.status().warning,
4850 DiagnosticSeverity::INFORMATION => theme.status().info,
4851 _ => theme.status().hint,
4852 };
4853 ColoredRange {
4854 start: start_display.row(),
4855 end: end_display.row(),
4856 color,
4857 }
4858 });
4859 marker_quads.extend(
4860 scrollbar_layout
4861 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
4862 );
4863 }
4864
4865 Arc::from(marker_quads)
4866 })
4867 .await;
4868
4869 editor.update(&mut cx, |editor, cx| {
4870 editor.scrollbar_marker_state.markers = scrollbar_markers;
4871 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
4872 editor.scrollbar_marker_state.pending_refresh = None;
4873 cx.notify();
4874 })?;
4875
4876 Ok(())
4877 }));
4878 });
4879 }
4880
4881 #[allow(clippy::too_many_arguments)]
4882 fn paint_highlighted_range(
4883 &self,
4884 range: Range<DisplayPoint>,
4885 color: Hsla,
4886 corner_radius: Pixels,
4887 line_end_overshoot: Pixels,
4888 layout: &EditorLayout,
4889 cx: &mut WindowContext,
4890 ) {
4891 let start_row = layout.visible_display_row_range.start;
4892 let end_row = layout.visible_display_row_range.end;
4893 if range.start != range.end {
4894 let row_range = if range.end.column() == 0 {
4895 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
4896 } else {
4897 cmp::max(range.start.row(), start_row)
4898 ..cmp::min(range.end.row().next_row(), end_row)
4899 };
4900
4901 let highlighted_range = HighlightedRange {
4902 color,
4903 line_height: layout.position_map.line_height,
4904 corner_radius,
4905 start_y: layout.content_origin.y
4906 + row_range.start.as_f32() * layout.position_map.line_height
4907 - layout.position_map.scroll_pixel_position.y,
4908 lines: row_range
4909 .iter_rows()
4910 .map(|row| {
4911 let line_layout =
4912 &layout.position_map.line_layouts[row.minus(start_row) as usize];
4913 HighlightedRangeLine {
4914 start_x: if row == range.start.row() {
4915 layout.content_origin.x
4916 + line_layout.x_for_index(range.start.column() as usize)
4917 - layout.position_map.scroll_pixel_position.x
4918 } else {
4919 layout.content_origin.x
4920 - layout.position_map.scroll_pixel_position.x
4921 },
4922 end_x: if row == range.end.row() {
4923 layout.content_origin.x
4924 + line_layout.x_for_index(range.end.column() as usize)
4925 - layout.position_map.scroll_pixel_position.x
4926 } else {
4927 layout.content_origin.x + line_layout.width + line_end_overshoot
4928 - layout.position_map.scroll_pixel_position.x
4929 },
4930 }
4931 })
4932 .collect(),
4933 };
4934
4935 highlighted_range.paint(layout.text_hitbox.bounds, cx);
4936 }
4937 }
4938
4939 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4940 if let Some(mut inline_blame) = layout.inline_blame.take() {
4941 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
4942 inline_blame.paint(cx);
4943 })
4944 }
4945 }
4946
4947 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4948 for mut block in layout.blocks.drain(..) {
4949 block.element.paint(cx);
4950 }
4951 }
4952
4953 fn paint_inline_completion_popover(
4954 &mut self,
4955 layout: &mut EditorLayout,
4956 cx: &mut WindowContext,
4957 ) {
4958 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
4959 inline_completion_popover.paint(cx);
4960 }
4961 }
4962
4963 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4964 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
4965 mouse_context_menu.paint(cx);
4966 }
4967 }
4968
4969 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
4970 cx.on_mouse_event({
4971 let position_map = layout.position_map.clone();
4972 let editor = self.editor.clone();
4973 let hitbox = layout.hitbox.clone();
4974 let mut delta = ScrollDelta::default();
4975
4976 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
4977 // accidentally turn off their scrolling.
4978 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
4979
4980 move |event: &ScrollWheelEvent, phase, cx| {
4981 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
4982 delta = delta.coalesce(event.delta);
4983 editor.update(cx, |editor, cx| {
4984 let position_map: &PositionMap = &position_map;
4985
4986 let line_height = position_map.line_height;
4987 let max_glyph_width = position_map.em_width;
4988 let (delta, axis) = match delta {
4989 gpui::ScrollDelta::Pixels(mut pixels) => {
4990 //Trackpad
4991 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
4992 (pixels, axis)
4993 }
4994
4995 gpui::ScrollDelta::Lines(lines) => {
4996 //Not trackpad
4997 let pixels =
4998 point(lines.x * max_glyph_width, lines.y * line_height);
4999 (pixels, None)
5000 }
5001 };
5002
5003 let current_scroll_position = position_map.snapshot.scroll_position();
5004 let x = (current_scroll_position.x * max_glyph_width
5005 - (delta.x * scroll_sensitivity))
5006 / max_glyph_width;
5007 let y = (current_scroll_position.y * line_height
5008 - (delta.y * scroll_sensitivity))
5009 / line_height;
5010 let mut scroll_position =
5011 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5012 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5013 if forbid_vertical_scroll {
5014 scroll_position.y = current_scroll_position.y;
5015 }
5016
5017 if scroll_position != current_scroll_position {
5018 editor.scroll(scroll_position, axis, cx);
5019 cx.stop_propagation();
5020 } else if y < 0. {
5021 // Due to clamping, we may fail to detect cases of overscroll to the top;
5022 // We want the scroll manager to get an update in such cases and detect the change of direction
5023 // on the next frame.
5024 cx.notify();
5025 }
5026 });
5027 }
5028 }
5029 });
5030 }
5031
5032 fn paint_mouse_listeners(
5033 &mut self,
5034 layout: &EditorLayout,
5035 hovered_hunk: Option<HoveredHunk>,
5036 cx: &mut WindowContext,
5037 ) {
5038 self.paint_scroll_wheel_listener(layout, cx);
5039
5040 cx.on_mouse_event({
5041 let position_map = layout.position_map.clone();
5042 let editor = self.editor.clone();
5043 let text_hitbox = layout.text_hitbox.clone();
5044 let gutter_hitbox = layout.gutter_hitbox.clone();
5045 let line_numbers = layout.line_numbers.clone();
5046
5047 move |event: &MouseDownEvent, phase, cx| {
5048 if phase == DispatchPhase::Bubble {
5049 match event.button {
5050 MouseButton::Left => editor.update(cx, |editor, cx| {
5051 Self::mouse_left_down(
5052 editor,
5053 event,
5054 hovered_hunk.clone(),
5055 &position_map,
5056 &text_hitbox,
5057 &gutter_hitbox,
5058 line_numbers.as_ref(),
5059 cx,
5060 );
5061 }),
5062 MouseButton::Right => editor.update(cx, |editor, cx| {
5063 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
5064 }),
5065 MouseButton::Middle => editor.update(cx, |editor, cx| {
5066 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
5067 }),
5068 _ => {}
5069 };
5070 }
5071 }
5072 });
5073
5074 cx.on_mouse_event({
5075 let editor = self.editor.clone();
5076 let position_map = layout.position_map.clone();
5077 let text_hitbox = layout.text_hitbox.clone();
5078
5079 move |event: &MouseUpEvent, phase, cx| {
5080 if phase == DispatchPhase::Bubble {
5081 editor.update(cx, |editor, cx| {
5082 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
5083 });
5084 }
5085 }
5086 });
5087 cx.on_mouse_event({
5088 let position_map = layout.position_map.clone();
5089 let editor = self.editor.clone();
5090 let text_hitbox = layout.text_hitbox.clone();
5091 let gutter_hitbox = layout.gutter_hitbox.clone();
5092
5093 move |event: &MouseMoveEvent, phase, cx| {
5094 if phase == DispatchPhase::Bubble {
5095 editor.update(cx, |editor, cx| {
5096 if editor.hover_state.focused(cx) {
5097 return;
5098 }
5099 if event.pressed_button == Some(MouseButton::Left)
5100 || event.pressed_button == Some(MouseButton::Middle)
5101 {
5102 Self::mouse_dragged(
5103 editor,
5104 event,
5105 &position_map,
5106 text_hitbox.bounds,
5107 cx,
5108 )
5109 }
5110
5111 Self::mouse_moved(
5112 editor,
5113 event,
5114 &position_map,
5115 &text_hitbox,
5116 &gutter_hitbox,
5117 cx,
5118 )
5119 });
5120 }
5121 }
5122 });
5123 }
5124
5125 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5126 bounds.top_right().x - self.style.scrollbar_width
5127 }
5128
5129 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
5130 let style = &self.style;
5131 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5132 let layout = cx
5133 .text_system()
5134 .shape_line(
5135 SharedString::from(" ".repeat(column)),
5136 font_size,
5137 &[TextRun {
5138 len: column,
5139 font: style.text.font(),
5140 color: Hsla::default(),
5141 background_color: None,
5142 underline: None,
5143 strikethrough: None,
5144 }],
5145 )
5146 .unwrap();
5147
5148 layout.width
5149 }
5150
5151 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
5152 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5153 self.column_pixels(digit_count, cx)
5154 }
5155
5156 fn shape_line_number(
5157 &self,
5158 text: SharedString,
5159 color: Hsla,
5160 cx: &WindowContext,
5161 ) -> anyhow::Result<ShapedLine> {
5162 let run = TextRun {
5163 len: text.len(),
5164 font: self.style.text.font(),
5165 color,
5166 background_color: None,
5167 underline: None,
5168 strikethrough: None,
5169 };
5170 cx.text_system().shape_line(
5171 text,
5172 self.style.text.font_size.to_pixels(cx.rem_size()),
5173 &[run],
5174 )
5175 }
5176}
5177
5178fn header_jump_data(
5179 snapshot: &EditorSnapshot,
5180 block_row_start: DisplayRow,
5181 height: u32,
5182 for_excerpt: &ExcerptInfo,
5183) -> JumpData {
5184 let range = &for_excerpt.range;
5185 let buffer = &for_excerpt.buffer;
5186 let jump_anchor = range
5187 .primary
5188 .as_ref()
5189 .map_or(range.context.start, |primary| primary.start);
5190
5191 let excerpt_start = range.context.start;
5192 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5193 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
5194 0
5195 } else {
5196 let excerpt_start_row = language::ToPoint::to_point(&excerpt_start, buffer).row;
5197 jump_position.row - excerpt_start_row
5198 };
5199
5200 let line_offset_from_top = (block_row_start.0 + height + offset_from_excerpt_start)
5201 .saturating_sub(
5202 snapshot
5203 .scroll_anchor
5204 .scroll_position(&snapshot.display_snapshot)
5205 .y as u32,
5206 );
5207
5208 JumpData::MultiBufferPoint {
5209 excerpt_id: for_excerpt.id,
5210 anchor: jump_anchor,
5211 position: language::ToPoint::to_point(&jump_anchor, buffer),
5212 line_offset_from_top,
5213 }
5214}
5215
5216fn inline_completion_tab_indicator(
5217 label: impl Into<SharedString>,
5218 icon: Option<IconName>,
5219 cx: &WindowContext,
5220) -> AnyElement {
5221 let tab_kbd = h_flex()
5222 .px_0p5()
5223 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5224 .text_size(TextSize::XSmall.rems(cx))
5225 .text_color(cx.theme().colors().text)
5226 .child("tab");
5227
5228 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5229
5230 h_flex()
5231 .py_0p5()
5232 .pl_1()
5233 .pr(padding_right)
5234 .gap_1()
5235 .bg(cx.theme().colors().text_accent.opacity(0.15))
5236 .border_1()
5237 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5238 .rounded_md()
5239 .shadow_sm()
5240 .child(tab_kbd)
5241 .child(Label::new(label).size(LabelSize::Small))
5242 .when_some(icon, |element, icon| {
5243 element.child(
5244 div()
5245 .mt(px(1.5))
5246 .child(Icon::new(icon).size(IconSize::Small)),
5247 )
5248 })
5249 .into_any()
5250}
5251
5252fn all_edits_insertions_or_deletions(
5253 edits: &Vec<(Range<Anchor>, String)>,
5254 snapshot: &MultiBufferSnapshot,
5255) -> bool {
5256 let mut all_insertions = true;
5257 let mut all_deletions = true;
5258
5259 for (range, new_text) in edits.iter() {
5260 let range_is_empty = range.to_offset(&snapshot).is_empty();
5261 let text_is_empty = new_text.is_empty();
5262
5263 if range_is_empty != text_is_empty {
5264 if range_is_empty {
5265 all_deletions = false;
5266 } else {
5267 all_insertions = false;
5268 }
5269 } else {
5270 return false;
5271 }
5272
5273 if !all_insertions && !all_deletions {
5274 return false;
5275 }
5276 }
5277 all_insertions || all_deletions
5278}
5279
5280#[allow(clippy::too_many_arguments)]
5281fn prepaint_gutter_button(
5282 button: IconButton,
5283 row: DisplayRow,
5284 line_height: Pixels,
5285 gutter_dimensions: &GutterDimensions,
5286 scroll_pixel_position: gpui::Point<Pixels>,
5287 gutter_hitbox: &Hitbox,
5288 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5289 cx: &mut WindowContext,
5290) -> AnyElement {
5291 let mut button = button.into_any_element();
5292 let available_space = size(
5293 AvailableSpace::MinContent,
5294 AvailableSpace::Definite(line_height),
5295 );
5296 let indicator_size = button.layout_as_root(available_space, cx);
5297
5298 let blame_width = gutter_dimensions.git_blame_entries_width;
5299 let gutter_width = rows_with_hunk_bounds
5300 .get(&row)
5301 .map(|bounds| bounds.size.width);
5302 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5303
5304 let mut x = left_offset;
5305 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5306 - indicator_size.width
5307 - left_offset;
5308 x += available_width / 2.;
5309
5310 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5311 y += (line_height - indicator_size.height) / 2.;
5312
5313 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
5314 button
5315}
5316
5317fn render_inline_blame_entry(
5318 blame: &gpui::Model<GitBlame>,
5319 blame_entry: BlameEntry,
5320 style: &EditorStyle,
5321 workspace: Option<WeakView<Workspace>>,
5322 cx: &mut WindowContext,
5323) -> AnyElement {
5324 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5325
5326 let author = blame_entry.author.as_deref().unwrap_or_default();
5327 let summary_enabled = ProjectSettings::get_global(cx)
5328 .git
5329 .show_inline_commit_summary();
5330
5331 let text = match blame_entry.summary.as_ref() {
5332 Some(summary) if summary_enabled => {
5333 format!("{}, {} - {}", author, relative_timestamp, summary)
5334 }
5335 _ => format!("{}, {}", author, relative_timestamp),
5336 };
5337
5338 let details = blame.read(cx).details_for_entry(&blame_entry);
5339
5340 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5341
5342 h_flex()
5343 .id("inline-blame")
5344 .w_full()
5345 .font_family(style.text.font().family)
5346 .text_color(cx.theme().status().hint)
5347 .line_height(style.text.line_height)
5348 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5349 .child(text)
5350 .gap_2()
5351 .hoverable_tooltip(move |_| tooltip.clone().into())
5352 .into_any()
5353}
5354
5355fn render_blame_entry(
5356 ix: usize,
5357 blame: &gpui::Model<GitBlame>,
5358 blame_entry: BlameEntry,
5359 style: &EditorStyle,
5360 last_used_color: &mut Option<(PlayerColor, Oid)>,
5361 editor: View<Editor>,
5362 cx: &mut WindowContext,
5363) -> AnyElement {
5364 let mut sha_color = cx
5365 .theme()
5366 .players()
5367 .color_for_participant(blame_entry.sha.into());
5368 // If the last color we used is the same as the one we get for this line, but
5369 // the commit SHAs are different, then we try again to get a different color.
5370 match *last_used_color {
5371 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5372 let index: u32 = blame_entry.sha.into();
5373 sha_color = cx.theme().players().color_for_participant(index + 1);
5374 }
5375 _ => {}
5376 };
5377 last_used_color.replace((sha_color, blame_entry.sha));
5378
5379 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5380
5381 let short_commit_id = blame_entry.sha.display_short();
5382
5383 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5384 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5385
5386 let details = blame.read(cx).details_for_entry(&blame_entry);
5387
5388 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5389
5390 let tooltip = cx.new_view(|_| {
5391 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
5392 });
5393
5394 h_flex()
5395 .w_full()
5396 .justify_between()
5397 .font_family(style.text.font().family)
5398 .line_height(style.text.line_height)
5399 .id(("blame", ix))
5400 .text_color(cx.theme().status().hint)
5401 .pr_2()
5402 .gap_2()
5403 .child(
5404 h_flex()
5405 .items_center()
5406 .gap_2()
5407 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5408 .child(name),
5409 )
5410 .child(relative_timestamp)
5411 .on_mouse_down(MouseButton::Right, {
5412 let blame_entry = blame_entry.clone();
5413 let details = details.clone();
5414 move |event, cx| {
5415 deploy_blame_entry_context_menu(
5416 &blame_entry,
5417 details.as_ref(),
5418 editor.clone(),
5419 event.position,
5420 cx,
5421 );
5422 }
5423 })
5424 .hover(|style| style.bg(cx.theme().colors().element_hover))
5425 .when_some(
5426 details.and_then(|details| details.permalink),
5427 |this, url| {
5428 let url = url.clone();
5429 this.cursor_pointer().on_click(move |_, cx| {
5430 cx.stop_propagation();
5431 cx.open_url(url.as_str())
5432 })
5433 },
5434 )
5435 .hoverable_tooltip(move |_| tooltip.clone().into())
5436 .into_any()
5437}
5438
5439fn deploy_blame_entry_context_menu(
5440 blame_entry: &BlameEntry,
5441 details: Option<&CommitDetails>,
5442 editor: View<Editor>,
5443 position: gpui::Point<Pixels>,
5444 cx: &mut WindowContext,
5445) {
5446 let context_menu = ContextMenu::build(cx, move |menu, _| {
5447 let sha = format!("{}", blame_entry.sha);
5448 menu.on_blur_subscription(Subscription::new(|| {}))
5449 .entry("Copy commit SHA", None, move |cx| {
5450 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5451 })
5452 .when_some(
5453 details.and_then(|details| details.permalink.clone()),
5454 |this, url| this.entry("Open permalink", None, move |cx| cx.open_url(url.as_str())),
5455 )
5456 });
5457
5458 editor.update(cx, move |editor, cx| {
5459 editor.mouse_context_menu = Some(MouseContextMenu::new(
5460 MenuPosition::PinnedToScreen(position),
5461 context_menu,
5462 cx,
5463 ));
5464 cx.notify();
5465 });
5466}
5467
5468#[derive(Debug)]
5469pub(crate) struct LineWithInvisibles {
5470 fragments: SmallVec<[LineFragment; 1]>,
5471 invisibles: Vec<Invisible>,
5472 len: usize,
5473 width: Pixels,
5474 font_size: Pixels,
5475}
5476
5477#[allow(clippy::large_enum_variant)]
5478enum LineFragment {
5479 Text(ShapedLine),
5480 Element {
5481 element: Option<AnyElement>,
5482 size: Size<Pixels>,
5483 len: usize,
5484 },
5485}
5486
5487impl fmt::Debug for LineFragment {
5488 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5489 match self {
5490 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5491 LineFragment::Element { size, len, .. } => f
5492 .debug_struct("Element")
5493 .field("size", size)
5494 .field("len", len)
5495 .finish(),
5496 }
5497 }
5498}
5499
5500impl LineWithInvisibles {
5501 #[allow(clippy::too_many_arguments)]
5502 fn from_chunks<'a>(
5503 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5504 editor_style: &EditorStyle,
5505 max_line_len: usize,
5506 max_line_count: usize,
5507 editor_mode: EditorMode,
5508 text_width: Pixels,
5509 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5510 cx: &mut WindowContext,
5511 ) -> Vec<Self> {
5512 let text_style = &editor_style.text;
5513 let mut layouts = Vec::with_capacity(max_line_count);
5514 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5515 let mut line = String::new();
5516 let mut invisibles = Vec::new();
5517 let mut width = Pixels::ZERO;
5518 let mut len = 0;
5519 let mut styles = Vec::new();
5520 let mut non_whitespace_added = false;
5521 let mut row = 0;
5522 let mut line_exceeded_max_len = false;
5523 let font_size = text_style.font_size.to_pixels(cx.rem_size());
5524
5525 let ellipsis = SharedString::from("⋯");
5526
5527 for highlighted_chunk in chunks.chain([HighlightedChunk {
5528 text: "\n",
5529 style: None,
5530 is_tab: false,
5531 replacement: None,
5532 }]) {
5533 if let Some(replacement) = highlighted_chunk.replacement {
5534 if !line.is_empty() {
5535 let shaped_line = cx
5536 .text_system()
5537 .shape_line(line.clone().into(), font_size, &styles)
5538 .unwrap();
5539 width += shaped_line.width;
5540 len += shaped_line.len;
5541 fragments.push(LineFragment::Text(shaped_line));
5542 line.clear();
5543 styles.clear();
5544 }
5545
5546 match replacement {
5547 ChunkReplacement::Renderer(renderer) => {
5548 let available_width = if renderer.constrain_width {
5549 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5550 ellipsis.clone()
5551 } else {
5552 SharedString::from(Arc::from(highlighted_chunk.text))
5553 };
5554 let shaped_line = cx
5555 .text_system()
5556 .shape_line(
5557 chunk,
5558 font_size,
5559 &[text_style.to_run(highlighted_chunk.text.len())],
5560 )
5561 .unwrap();
5562 AvailableSpace::Definite(shaped_line.width)
5563 } else {
5564 AvailableSpace::MinContent
5565 };
5566
5567 let mut element = (renderer.render)(&mut ChunkRendererContext {
5568 context: cx,
5569 max_width: text_width,
5570 });
5571 let line_height = text_style.line_height_in_pixels(cx.rem_size());
5572 let size = element.layout_as_root(
5573 size(available_width, AvailableSpace::Definite(line_height)),
5574 cx,
5575 );
5576
5577 width += size.width;
5578 len += highlighted_chunk.text.len();
5579 fragments.push(LineFragment::Element {
5580 element: Some(element),
5581 size,
5582 len: highlighted_chunk.text.len(),
5583 });
5584 }
5585 ChunkReplacement::Str(x) => {
5586 let text_style = if let Some(style) = highlighted_chunk.style {
5587 Cow::Owned(text_style.clone().highlight(style))
5588 } else {
5589 Cow::Borrowed(text_style)
5590 };
5591
5592 let run = TextRun {
5593 len: x.len(),
5594 font: text_style.font(),
5595 color: text_style.color,
5596 background_color: text_style.background_color,
5597 underline: text_style.underline,
5598 strikethrough: text_style.strikethrough,
5599 };
5600 let line_layout = cx
5601 .text_system()
5602 .shape_line(x, font_size, &[run])
5603 .unwrap()
5604 .with_len(highlighted_chunk.text.len());
5605
5606 width += line_layout.width;
5607 len += highlighted_chunk.text.len();
5608 fragments.push(LineFragment::Text(line_layout))
5609 }
5610 }
5611 } else {
5612 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
5613 if ix > 0 {
5614 let shaped_line = cx
5615 .text_system()
5616 .shape_line(line.clone().into(), font_size, &styles)
5617 .unwrap();
5618 width += shaped_line.width;
5619 len += shaped_line.len;
5620 fragments.push(LineFragment::Text(shaped_line));
5621 layouts.push(Self {
5622 width: mem::take(&mut width),
5623 len: mem::take(&mut len),
5624 fragments: mem::take(&mut fragments),
5625 invisibles: std::mem::take(&mut invisibles),
5626 font_size,
5627 });
5628
5629 line.clear();
5630 styles.clear();
5631 row += 1;
5632 line_exceeded_max_len = false;
5633 non_whitespace_added = false;
5634 if row == max_line_count {
5635 return layouts;
5636 }
5637 }
5638
5639 if !line_chunk.is_empty() && !line_exceeded_max_len {
5640 let text_style = if let Some(style) = highlighted_chunk.style {
5641 Cow::Owned(text_style.clone().highlight(style))
5642 } else {
5643 Cow::Borrowed(text_style)
5644 };
5645
5646 if line.len() + line_chunk.len() > max_line_len {
5647 let mut chunk_len = max_line_len - line.len();
5648 while !line_chunk.is_char_boundary(chunk_len) {
5649 chunk_len -= 1;
5650 }
5651 line_chunk = &line_chunk[..chunk_len];
5652 line_exceeded_max_len = true;
5653 }
5654
5655 styles.push(TextRun {
5656 len: line_chunk.len(),
5657 font: text_style.font(),
5658 color: text_style.color,
5659 background_color: text_style.background_color,
5660 underline: text_style.underline,
5661 strikethrough: text_style.strikethrough,
5662 });
5663
5664 if editor_mode == EditorMode::Full {
5665 // Line wrap pads its contents with fake whitespaces,
5666 // avoid printing them
5667 let is_soft_wrapped = is_row_soft_wrapped(row);
5668 if highlighted_chunk.is_tab {
5669 if non_whitespace_added || !is_soft_wrapped {
5670 invisibles.push(Invisible::Tab {
5671 line_start_offset: line.len(),
5672 line_end_offset: line.len() + line_chunk.len(),
5673 });
5674 }
5675 } else {
5676 invisibles.extend(line_chunk.char_indices().filter_map(
5677 |(index, c)| {
5678 let is_whitespace = c.is_whitespace();
5679 non_whitespace_added |= !is_whitespace;
5680 if is_whitespace
5681 && (non_whitespace_added || !is_soft_wrapped)
5682 {
5683 Some(Invisible::Whitespace {
5684 line_offset: line.len() + index,
5685 })
5686 } else {
5687 None
5688 }
5689 },
5690 ))
5691 }
5692 }
5693
5694 line.push_str(line_chunk);
5695 }
5696 }
5697 }
5698 }
5699
5700 layouts
5701 }
5702
5703 fn prepaint(
5704 &mut self,
5705 line_height: Pixels,
5706 scroll_pixel_position: gpui::Point<Pixels>,
5707 row: DisplayRow,
5708 content_origin: gpui::Point<Pixels>,
5709 line_elements: &mut SmallVec<[AnyElement; 1]>,
5710 cx: &mut WindowContext,
5711 ) {
5712 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
5713 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
5714 for fragment in &mut self.fragments {
5715 match fragment {
5716 LineFragment::Text(line) => {
5717 fragment_origin.x += line.width;
5718 }
5719 LineFragment::Element { element, size, .. } => {
5720 let mut element = element
5721 .take()
5722 .expect("you can't prepaint LineWithInvisibles twice");
5723
5724 // Center the element vertically within the line.
5725 let mut element_origin = fragment_origin;
5726 element_origin.y += (line_height - size.height) / 2.;
5727 element.prepaint_at(element_origin, cx);
5728 line_elements.push(element);
5729
5730 fragment_origin.x += size.width;
5731 }
5732 }
5733 }
5734 }
5735
5736 fn draw(
5737 &self,
5738 layout: &EditorLayout,
5739 row: DisplayRow,
5740 content_origin: gpui::Point<Pixels>,
5741 whitespace_setting: ShowWhitespaceSetting,
5742 selection_ranges: &[Range<DisplayPoint>],
5743 cx: &mut WindowContext,
5744 ) {
5745 let line_height = layout.position_map.line_height;
5746 let line_y = line_height
5747 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
5748
5749 let mut fragment_origin =
5750 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
5751
5752 for fragment in &self.fragments {
5753 match fragment {
5754 LineFragment::Text(line) => {
5755 line.paint(fragment_origin, line_height, cx).log_err();
5756 fragment_origin.x += line.width;
5757 }
5758 LineFragment::Element { size, .. } => {
5759 fragment_origin.x += size.width;
5760 }
5761 }
5762 }
5763
5764 self.draw_invisibles(
5765 selection_ranges,
5766 layout,
5767 content_origin,
5768 line_y,
5769 row,
5770 line_height,
5771 whitespace_setting,
5772 cx,
5773 );
5774 }
5775
5776 #[allow(clippy::too_many_arguments)]
5777 fn draw_invisibles(
5778 &self,
5779 selection_ranges: &[Range<DisplayPoint>],
5780 layout: &EditorLayout,
5781 content_origin: gpui::Point<Pixels>,
5782 line_y: Pixels,
5783 row: DisplayRow,
5784 line_height: Pixels,
5785 whitespace_setting: ShowWhitespaceSetting,
5786 cx: &mut WindowContext,
5787 ) {
5788 let extract_whitespace_info = |invisible: &Invisible| {
5789 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
5790 Invisible::Tab {
5791 line_start_offset,
5792 line_end_offset,
5793 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
5794 Invisible::Whitespace { line_offset } => {
5795 (*line_offset, line_offset + 1, &layout.space_invisible)
5796 }
5797 };
5798
5799 let x_offset = self.x_for_index(token_offset);
5800 let invisible_offset =
5801 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
5802 let origin = content_origin
5803 + gpui::point(
5804 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
5805 line_y,
5806 );
5807
5808 (
5809 [token_offset, token_end_offset],
5810 Box::new(move |cx: &mut WindowContext| {
5811 invisible_symbol.paint(origin, line_height, cx).log_err();
5812 }),
5813 )
5814 };
5815
5816 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
5817 match whitespace_setting {
5818 ShowWhitespaceSetting::None => (),
5819 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(cx)),
5820 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
5821 let invisible_point = DisplayPoint::new(row, start as u32);
5822 if !selection_ranges
5823 .iter()
5824 .any(|region| region.start <= invisible_point && invisible_point < region.end)
5825 {
5826 return;
5827 }
5828
5829 paint(cx);
5830 }),
5831
5832 // For a whitespace to be on a boundary, any of the following conditions need to be met:
5833 // - It is a tab
5834 // - It is adjacent to an edge (start or end)
5835 // - It is adjacent to a whitespace (left or right)
5836 ShowWhitespaceSetting::Boundary => {
5837 // 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
5838 // the above cases.
5839 // Note: We zip in the original `invisibles` to check for tab equality
5840 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut WindowContext)>)> = None;
5841 for (([start, end], paint), invisible) in
5842 invisible_iter.zip_eq(self.invisibles.iter())
5843 {
5844 let should_render = match (&last_seen, invisible) {
5845 (_, Invisible::Tab { .. }) => true,
5846 (Some((_, last_end, _)), _) => *last_end == start,
5847 _ => false,
5848 };
5849
5850 if should_render || start == 0 || end == self.len {
5851 paint(cx);
5852
5853 // Since we are scanning from the left, we will skip over the first available whitespace that is part
5854 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
5855 if let Some((should_render_last, last_end, paint_last)) = last_seen {
5856 // Note that we need to make sure that the last one is actually adjacent
5857 if !should_render_last && last_end == start {
5858 paint_last(cx);
5859 }
5860 }
5861 }
5862
5863 // Manually render anything within a selection
5864 let invisible_point = DisplayPoint::new(row, start as u32);
5865 if selection_ranges.iter().any(|region| {
5866 region.start <= invisible_point && invisible_point < region.end
5867 }) {
5868 paint(cx);
5869 }
5870
5871 last_seen = Some((should_render, end, paint));
5872 }
5873 }
5874 }
5875 }
5876
5877 pub fn x_for_index(&self, index: usize) -> Pixels {
5878 let mut fragment_start_x = Pixels::ZERO;
5879 let mut fragment_start_index = 0;
5880
5881 for fragment in &self.fragments {
5882 match fragment {
5883 LineFragment::Text(shaped_line) => {
5884 let fragment_end_index = fragment_start_index + shaped_line.len;
5885 if index < fragment_end_index {
5886 return fragment_start_x
5887 + shaped_line.x_for_index(index - fragment_start_index);
5888 }
5889 fragment_start_x += shaped_line.width;
5890 fragment_start_index = fragment_end_index;
5891 }
5892 LineFragment::Element { len, size, .. } => {
5893 let fragment_end_index = fragment_start_index + len;
5894 if index < fragment_end_index {
5895 return fragment_start_x;
5896 }
5897 fragment_start_x += size.width;
5898 fragment_start_index = fragment_end_index;
5899 }
5900 }
5901 }
5902
5903 fragment_start_x
5904 }
5905
5906 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
5907 let mut fragment_start_x = Pixels::ZERO;
5908 let mut fragment_start_index = 0;
5909
5910 for fragment in &self.fragments {
5911 match fragment {
5912 LineFragment::Text(shaped_line) => {
5913 let fragment_end_x = fragment_start_x + shaped_line.width;
5914 if x < fragment_end_x {
5915 return Some(
5916 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
5917 );
5918 }
5919 fragment_start_x = fragment_end_x;
5920 fragment_start_index += shaped_line.len;
5921 }
5922 LineFragment::Element { len, size, .. } => {
5923 let fragment_end_x = fragment_start_x + size.width;
5924 if x < fragment_end_x {
5925 return Some(fragment_start_index);
5926 }
5927 fragment_start_index += len;
5928 fragment_start_x = fragment_end_x;
5929 }
5930 }
5931 }
5932
5933 None
5934 }
5935
5936 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
5937 let mut fragment_start_index = 0;
5938
5939 for fragment in &self.fragments {
5940 match fragment {
5941 LineFragment::Text(shaped_line) => {
5942 let fragment_end_index = fragment_start_index + shaped_line.len;
5943 if index < fragment_end_index {
5944 return shaped_line.font_id_for_index(index - fragment_start_index);
5945 }
5946 fragment_start_index = fragment_end_index;
5947 }
5948 LineFragment::Element { len, .. } => {
5949 let fragment_end_index = fragment_start_index + len;
5950 if index < fragment_end_index {
5951 return None;
5952 }
5953 fragment_start_index = fragment_end_index;
5954 }
5955 }
5956 }
5957
5958 None
5959 }
5960}
5961
5962#[derive(Debug, Clone, Copy, PartialEq, Eq)]
5963enum Invisible {
5964 /// A tab character
5965 ///
5966 /// A tab character is internally represented by spaces (configured by the user's tab width)
5967 /// aligned to the nearest column, so it's necessary to store the start and end offset for
5968 /// adjacency checks.
5969 Tab {
5970 line_start_offset: usize,
5971 line_end_offset: usize,
5972 },
5973 Whitespace {
5974 line_offset: usize,
5975 },
5976}
5977
5978impl EditorElement {
5979 /// Returns the rem size to use when rendering the [`EditorElement`].
5980 ///
5981 /// This allows UI elements to scale based on the `buffer_font_size`.
5982 fn rem_size(&self, cx: &WindowContext) -> Option<Pixels> {
5983 match self.editor.read(cx).mode {
5984 EditorMode::Full => {
5985 let buffer_font_size = self.style.text.font_size;
5986 match buffer_font_size {
5987 AbsoluteLength::Pixels(pixels) => {
5988 let rem_size_scale = {
5989 // Our default UI font size is 14px on a 16px base scale.
5990 // This means the default UI font size is 0.875rems.
5991 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
5992
5993 // We then determine the delta between a single rem and the default font
5994 // size scale.
5995 let default_font_size_delta = 1. - default_font_size_scale;
5996
5997 // Finally, we add this delta to 1rem to get the scale factor that
5998 // should be used to scale up the UI.
5999 1. + default_font_size_delta
6000 };
6001
6002 Some(pixels * rem_size_scale)
6003 }
6004 AbsoluteLength::Rems(rems) => {
6005 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6006 }
6007 }
6008 }
6009 // We currently use single-line and auto-height editors in UI contexts,
6010 // so we don't want to scale everything with the buffer font size, as it
6011 // ends up looking off.
6012 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6013 }
6014 }
6015}
6016
6017impl Element for EditorElement {
6018 type RequestLayoutState = ();
6019 type PrepaintState = EditorLayout;
6020
6021 fn id(&self) -> Option<ElementId> {
6022 None
6023 }
6024
6025 fn request_layout(
6026 &mut self,
6027 _: Option<&GlobalElementId>,
6028 cx: &mut WindowContext,
6029 ) -> (gpui::LayoutId, ()) {
6030 let rem_size = self.rem_size(cx);
6031 cx.with_rem_size(rem_size, |cx| {
6032 self.editor.update(cx, |editor, cx| {
6033 editor.set_style(self.style.clone(), cx);
6034
6035 let layout_id = match editor.mode {
6036 EditorMode::SingleLine { auto_width } => {
6037 let rem_size = cx.rem_size();
6038
6039 let height = self.style.text.line_height_in_pixels(rem_size);
6040 if auto_width {
6041 let editor_handle = cx.view().clone();
6042 let style = self.style.clone();
6043 cx.request_measured_layout(Style::default(), move |_, _, cx| {
6044 let editor_snapshot =
6045 editor_handle.update(cx, |editor, cx| editor.snapshot(cx));
6046 let line = Self::layout_lines(
6047 DisplayRow(0)..DisplayRow(1),
6048 &editor_snapshot,
6049 &style,
6050 px(f32::MAX),
6051 |_| false, // Single lines never soft wrap
6052 cx,
6053 )
6054 .pop()
6055 .unwrap();
6056
6057 let font_id = cx.text_system().resolve_font(&style.text.font());
6058 let font_size = style.text.font_size.to_pixels(cx.rem_size());
6059 let em_width = cx
6060 .text_system()
6061 .typographic_bounds(font_id, font_size, 'm')
6062 .unwrap()
6063 .size
6064 .width;
6065
6066 size(line.width + em_width, height)
6067 })
6068 } else {
6069 let mut style = Style::default();
6070 style.size.height = height.into();
6071 style.size.width = relative(1.).into();
6072 cx.request_layout(style, None)
6073 }
6074 }
6075 EditorMode::AutoHeight { max_lines } => {
6076 let editor_handle = cx.view().clone();
6077 let max_line_number_width =
6078 self.max_line_number_width(&editor.snapshot(cx), cx);
6079 cx.request_measured_layout(
6080 Style::default(),
6081 move |known_dimensions, available_space, cx| {
6082 editor_handle
6083 .update(cx, |editor, cx| {
6084 compute_auto_height_layout(
6085 editor,
6086 max_lines,
6087 max_line_number_width,
6088 known_dimensions,
6089 available_space.width,
6090 cx,
6091 )
6092 })
6093 .unwrap_or_default()
6094 },
6095 )
6096 }
6097 EditorMode::Full => {
6098 let mut style = Style::default();
6099 style.size.width = relative(1.).into();
6100 style.size.height = relative(1.).into();
6101 cx.request_layout(style, None)
6102 }
6103 };
6104
6105 (layout_id, ())
6106 })
6107 })
6108 }
6109
6110 fn prepaint(
6111 &mut self,
6112 _: Option<&GlobalElementId>,
6113 bounds: Bounds<Pixels>,
6114 _: &mut Self::RequestLayoutState,
6115 cx: &mut WindowContext,
6116 ) -> Self::PrepaintState {
6117 let text_style = TextStyleRefinement {
6118 font_size: Some(self.style.text.font_size),
6119 line_height: Some(self.style.text.line_height),
6120 ..Default::default()
6121 };
6122 let focus_handle = self.editor.focus_handle(cx);
6123 cx.set_view_id(self.editor.entity_id());
6124 cx.set_focus_handle(&focus_handle);
6125
6126 let rem_size = self.rem_size(cx);
6127 cx.with_rem_size(rem_size, |cx| {
6128 cx.with_text_style(Some(text_style), |cx| {
6129 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
6130 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
6131 let style = self.style.clone();
6132
6133 let font_id = cx.text_system().resolve_font(&style.text.font());
6134 let font_size = style.text.font_size.to_pixels(cx.rem_size());
6135 let line_height = style.text.line_height_in_pixels(cx.rem_size());
6136 let em_width = cx
6137 .text_system()
6138 .typographic_bounds(font_id, font_size, 'm')
6139 .unwrap()
6140 .size
6141 .width;
6142 let em_advance = cx
6143 .text_system()
6144 .advance(font_id, font_size, 'm')
6145 .unwrap()
6146 .width;
6147
6148 let letter_size = size(em_width, line_height);
6149
6150 let gutter_dimensions = snapshot.gutter_dimensions(
6151 font_id,
6152 font_size,
6153 em_width,
6154 em_advance,
6155 self.max_line_number_width(&snapshot, cx),
6156 cx,
6157 );
6158 let text_width = bounds.size.width - gutter_dimensions.width;
6159
6160 let editor_width = text_width - gutter_dimensions.margin - em_width;
6161
6162 snapshot = self.editor.update(cx, |editor, cx| {
6163 editor.last_bounds = Some(bounds);
6164 editor.gutter_dimensions = gutter_dimensions;
6165 editor.set_visible_line_count(bounds.size.height / line_height, cx);
6166
6167 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6168 snapshot
6169 } else {
6170 let wrap_width = match editor.soft_wrap_mode(cx) {
6171 SoftWrap::GitDiff => None,
6172 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6173 SoftWrap::EditorWidth => Some(editor_width),
6174 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6175 SoftWrap::Bounded(column) => {
6176 Some(editor_width.min(column as f32 * em_advance))
6177 }
6178 };
6179
6180 if editor.set_wrap_width(wrap_width, cx) {
6181 editor.snapshot(cx)
6182 } else {
6183 snapshot
6184 }
6185 }
6186 });
6187
6188 let wrap_guides = self
6189 .editor
6190 .read(cx)
6191 .wrap_guides(cx)
6192 .iter()
6193 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
6194 .collect::<SmallVec<[_; 2]>>();
6195
6196 let hitbox = cx.insert_hitbox(bounds, false);
6197 let gutter_hitbox =
6198 cx.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6199 let text_hitbox = cx.insert_hitbox(
6200 Bounds {
6201 origin: gutter_hitbox.top_right(),
6202 size: size(text_width, bounds.size.height),
6203 },
6204 false,
6205 );
6206 // Offset the content_bounds from the text_bounds by the gutter margin (which
6207 // is roughly half a character wide) to make hit testing work more like how we want.
6208 let content_origin =
6209 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6210
6211 let scrollbar_bounds =
6212 Bounds::from_corners(content_origin, bounds.bottom_right());
6213
6214 let height_in_lines = scrollbar_bounds.size.height / line_height;
6215
6216 // NOTE: The max row number in the current file, minus one
6217 let max_row = snapshot.max_point().row().as_f32();
6218
6219 // NOTE: The max scroll position for the top of the window
6220 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6221 (max_row - height_in_lines + 1.).max(0.)
6222 } else {
6223 let settings = EditorSettings::get_global(cx);
6224 match settings.scroll_beyond_last_line {
6225 ScrollBeyondLastLine::OnePage => max_row,
6226 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6227 ScrollBeyondLastLine::VerticalScrollMargin => {
6228 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6229 .max(0.)
6230 }
6231 }
6232 };
6233
6234 // TODO: Autoscrolling for both axes
6235 let mut autoscroll_request = None;
6236 let mut autoscroll_containing_element = false;
6237 let mut autoscroll_horizontally = false;
6238 self.editor.update(cx, |editor, cx| {
6239 autoscroll_request = editor.autoscroll_request();
6240 autoscroll_containing_element =
6241 autoscroll_request.is_some() || editor.has_pending_selection();
6242 // TODO: Is this horizontal or vertical?!
6243 autoscroll_horizontally =
6244 editor.autoscroll_vertically(bounds, line_height, max_scroll_top, cx);
6245 snapshot = editor.snapshot(cx);
6246 });
6247
6248 let mut scroll_position = snapshot.scroll_position();
6249 // The scroll position is a fractional point, the whole number of which represents
6250 // the top of the window in terms of display rows.
6251 let start_row = DisplayRow(scroll_position.y as u32);
6252 let max_row = snapshot.max_point().row();
6253 let end_row = cmp::min(
6254 (scroll_position.y + height_in_lines).ceil() as u32,
6255 max_row.next_row().0,
6256 );
6257 let end_row = DisplayRow(end_row);
6258
6259 let buffer_rows = snapshot
6260 .buffer_rows(start_row)
6261 .take((start_row..end_row).len())
6262 .collect::<Vec<_>>();
6263 let is_row_soft_wrapped =
6264 |row| buffer_rows.get(row).copied().flatten().is_none();
6265
6266 let start_anchor = if start_row == Default::default() {
6267 Anchor::min()
6268 } else {
6269 snapshot.buffer_snapshot.anchor_before(
6270 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6271 )
6272 };
6273 let end_anchor = if end_row > max_row {
6274 Anchor::max()
6275 } else {
6276 snapshot.buffer_snapshot.anchor_before(
6277 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6278 )
6279 };
6280
6281 let highlighted_rows = self
6282 .editor
6283 .update(cx, |editor, cx| editor.highlighted_display_rows(cx));
6284 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6285 start_anchor..end_anchor,
6286 &snapshot.display_snapshot,
6287 cx.theme().colors(),
6288 );
6289 let highlighted_gutter_ranges =
6290 self.editor.read(cx).gutter_highlights_in_range(
6291 start_anchor..end_anchor,
6292 &snapshot.display_snapshot,
6293 cx,
6294 );
6295
6296 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6297 start_anchor..end_anchor,
6298 &snapshot.display_snapshot,
6299 cx,
6300 );
6301
6302 let (local_selections, selected_buffer_ids): (
6303 Vec<Selection<Point>>,
6304 Vec<BufferId>,
6305 ) = self.editor.update(cx, |editor, cx| {
6306 let all_selections = editor.selections.all::<Point>(cx);
6307 let selected_buffer_ids = if editor.is_singleton(cx) {
6308 Vec::new()
6309 } else {
6310 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6311
6312 for selection in all_selections {
6313 for buffer_id in snapshot
6314 .buffer_snapshot
6315 .buffer_ids_in_selected_rows(selection)
6316 {
6317 if selected_buffer_ids.last() != Some(&buffer_id) {
6318 selected_buffer_ids.push(buffer_id);
6319 }
6320 }
6321 }
6322
6323 selected_buffer_ids
6324 };
6325
6326 let mut selections = editor
6327 .selections
6328 .disjoint_in_range(start_anchor..end_anchor, cx);
6329 selections.extend(editor.selections.pending(cx));
6330
6331 (selections, selected_buffer_ids)
6332 });
6333
6334 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6335 start_anchor,
6336 end_anchor,
6337 &local_selections,
6338 &snapshot,
6339 start_row,
6340 end_row,
6341 cx,
6342 );
6343
6344 let line_numbers = self.layout_line_numbers(
6345 Some(&gutter_hitbox),
6346 gutter_dimensions,
6347 line_height,
6348 scroll_position,
6349 start_row..end_row,
6350 buffer_rows.iter().copied(),
6351 newest_selection_head,
6352 &snapshot,
6353 cx,
6354 );
6355
6356 let mut crease_toggles = cx.with_element_namespace("crease_toggles", |cx| {
6357 self.layout_crease_toggles(
6358 start_row..end_row,
6359 buffer_rows.iter().copied(),
6360 &active_rows,
6361 &snapshot,
6362 cx,
6363 )
6364 });
6365 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
6366 self.layout_crease_trailers(buffer_rows.iter().copied(), &snapshot, cx)
6367 });
6368
6369 let display_hunks = self.layout_gutter_git_hunks(
6370 line_height,
6371 &gutter_hitbox,
6372 start_row..end_row,
6373 start_anchor..end_anchor,
6374 &snapshot,
6375 cx,
6376 );
6377
6378 let mut max_visible_line_width = Pixels::ZERO;
6379 let mut line_layouts = Self::layout_lines(
6380 start_row..end_row,
6381 &snapshot,
6382 &self.style,
6383 editor_width,
6384 is_row_soft_wrapped,
6385 cx,
6386 );
6387 for line_with_invisibles in &line_layouts {
6388 if line_with_invisibles.width > max_visible_line_width {
6389 max_visible_line_width = line_with_invisibles.width;
6390 }
6391 }
6392
6393 let longest_line_width = layout_line(
6394 snapshot.longest_row(),
6395 &snapshot,
6396 &style,
6397 editor_width,
6398 is_row_soft_wrapped,
6399 cx,
6400 )
6401 .width;
6402
6403 let scrollbar_range_data = ScrollbarRangeData::new(
6404 scrollbar_bounds,
6405 letter_size,
6406 &snapshot,
6407 longest_line_width,
6408 &style,
6409 cx,
6410 );
6411
6412 let scroll_range_bounds = scrollbar_range_data.scroll_range;
6413 let mut scroll_width = scroll_range_bounds.size.width;
6414
6415 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6416 snapshot.sticky_header_excerpt(start_row)
6417 } else {
6418 None
6419 };
6420 let sticky_header_excerpt_id =
6421 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6422
6423 let blocks = cx.with_element_namespace("blocks", |cx| {
6424 self.render_blocks(
6425 start_row..end_row,
6426 &snapshot,
6427 &hitbox,
6428 &text_hitbox,
6429 editor_width,
6430 &mut scroll_width,
6431 &gutter_dimensions,
6432 em_width,
6433 gutter_dimensions.full_width(),
6434 line_height,
6435 &line_layouts,
6436 &local_selections,
6437 &selected_buffer_ids,
6438 is_row_soft_wrapped,
6439 sticky_header_excerpt_id,
6440 cx,
6441 )
6442 });
6443 let mut blocks = match blocks {
6444 Ok(blocks) => blocks,
6445 Err(resized_blocks) => {
6446 self.editor.update(cx, |editor, cx| {
6447 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6448 });
6449 return self.prepaint(None, bounds, &mut (), cx);
6450 }
6451 };
6452
6453 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6454 cx.with_element_namespace("blocks", |cx| {
6455 self.layout_sticky_buffer_header(
6456 sticky_header_excerpt,
6457 scroll_position.y,
6458 line_height,
6459 &snapshot,
6460 &hitbox,
6461 &selected_buffer_ids,
6462 cx,
6463 )
6464 })
6465 });
6466
6467 let start_buffer_row =
6468 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
6469 let end_buffer_row =
6470 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
6471
6472 let scroll_max = point(
6473 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6474 max_row.as_f32(),
6475 );
6476
6477 self.editor.update(cx, |editor, cx| {
6478 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6479
6480 let autoscrolled = if autoscroll_horizontally {
6481 editor.autoscroll_horizontally(
6482 start_row,
6483 text_hitbox.size.width,
6484 scroll_width,
6485 em_width,
6486 &line_layouts,
6487 cx,
6488 )
6489 } else {
6490 false
6491 };
6492
6493 if clamped || autoscrolled {
6494 snapshot = editor.snapshot(cx);
6495 scroll_position = snapshot.scroll_position();
6496 }
6497 });
6498
6499 let scroll_pixel_position = point(
6500 scroll_position.x * em_width,
6501 scroll_position.y * line_height,
6502 );
6503
6504 let indent_guides = self.layout_indent_guides(
6505 content_origin,
6506 text_hitbox.origin,
6507 start_buffer_row..end_buffer_row,
6508 scroll_pixel_position,
6509 line_height,
6510 &snapshot,
6511 cx,
6512 );
6513
6514 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
6515 self.prepaint_crease_trailers(
6516 crease_trailers,
6517 &line_layouts,
6518 line_height,
6519 content_origin,
6520 scroll_pixel_position,
6521 em_width,
6522 cx,
6523 )
6524 });
6525
6526 let mut inline_blame = None;
6527 if let Some(newest_selection_head) = newest_selection_head {
6528 let display_row = newest_selection_head.row();
6529 if (start_row..end_row).contains(&display_row) {
6530 let line_ix = display_row.minus(start_row) as usize;
6531 let line_layout = &line_layouts[line_ix];
6532 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
6533 inline_blame = self.layout_inline_blame(
6534 display_row,
6535 &snapshot.display_snapshot,
6536 line_layout,
6537 crease_trailer_layout,
6538 em_width,
6539 content_origin,
6540 scroll_pixel_position,
6541 line_height,
6542 cx,
6543 );
6544 }
6545 }
6546
6547 let blamed_display_rows = self.layout_blame_entries(
6548 buffer_rows.into_iter(),
6549 em_width,
6550 scroll_position,
6551 line_height,
6552 &gutter_hitbox,
6553 gutter_dimensions.git_blame_entries_width,
6554 cx,
6555 );
6556
6557 let scroll_max = point(
6558 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6559 max_scroll_top,
6560 );
6561
6562 self.editor.update(cx, |editor, cx| {
6563 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6564
6565 let autoscrolled = if autoscroll_horizontally {
6566 editor.autoscroll_horizontally(
6567 start_row,
6568 text_hitbox.size.width,
6569 scroll_width,
6570 em_width,
6571 &line_layouts,
6572 cx,
6573 )
6574 } else {
6575 false
6576 };
6577
6578 if clamped || autoscrolled {
6579 snapshot = editor.snapshot(cx);
6580 scroll_position = snapshot.scroll_position();
6581 }
6582 });
6583
6584 let line_elements = self.prepaint_lines(
6585 start_row,
6586 &mut line_layouts,
6587 line_height,
6588 scroll_pixel_position,
6589 content_origin,
6590 cx,
6591 );
6592
6593 let mut block_start_rows = HashSet::default();
6594
6595 cx.with_element_namespace("blocks", |cx| {
6596 self.layout_blocks(
6597 &mut blocks,
6598 &mut block_start_rows,
6599 &hitbox,
6600 line_height,
6601 scroll_pixel_position,
6602 cx,
6603 );
6604 });
6605
6606 let cursors = self.collect_cursors(&snapshot, cx);
6607 let visible_row_range = start_row..end_row;
6608 let non_visible_cursors = cursors
6609 .iter()
6610 .any(move |c| !visible_row_range.contains(&c.0.row()));
6611
6612 let visible_cursors = self.layout_visible_cursors(
6613 &snapshot,
6614 &selections,
6615 &block_start_rows,
6616 start_row..end_row,
6617 &line_layouts,
6618 &text_hitbox,
6619 content_origin,
6620 scroll_position,
6621 scroll_pixel_position,
6622 line_height,
6623 em_width,
6624 em_advance,
6625 autoscroll_containing_element,
6626 cx,
6627 );
6628
6629 let scrollbars_layout = self.layout_scrollbars(
6630 &snapshot,
6631 scrollbar_range_data,
6632 scroll_position,
6633 non_visible_cursors,
6634 cx,
6635 );
6636
6637 let gutter_settings = EditorSettings::get_global(cx).gutter;
6638
6639 let expanded_add_hunks_by_rows = self.editor.update(cx, |editor, _| {
6640 editor
6641 .diff_map
6642 .hunks(false)
6643 .filter(|hunk| hunk.status == DiffHunkStatus::Added)
6644 .map(|expanded_hunk| {
6645 let start_row = expanded_hunk
6646 .hunk_range
6647 .start
6648 .to_display_point(&snapshot)
6649 .row();
6650 (start_row, expanded_hunk.clone())
6651 })
6652 .collect::<HashMap<_, _>>()
6653 });
6654
6655 let rows_with_hunk_bounds = display_hunks
6656 .iter()
6657 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
6658 .fold(
6659 HashMap::default(),
6660 |mut rows_with_hunk_bounds, (hunk, bounds)| {
6661 match hunk {
6662 DisplayDiffHunk::Folded { display_row } => {
6663 rows_with_hunk_bounds.insert(*display_row, bounds);
6664 }
6665 DisplayDiffHunk::Unfolded {
6666 display_row_range, ..
6667 } => {
6668 for display_row in display_row_range.iter_rows() {
6669 rows_with_hunk_bounds.insert(display_row, bounds);
6670 }
6671 }
6672 }
6673 rows_with_hunk_bounds
6674 },
6675 );
6676 let mut code_actions_indicator = None;
6677 if let Some(newest_selection_head) = newest_selection_head {
6678 if (start_row..end_row).contains(&newest_selection_head.row()) {
6679 self.layout_context_menu(
6680 line_height,
6681 &text_hitbox,
6682 content_origin,
6683 start_row,
6684 scroll_pixel_position,
6685 &line_layouts,
6686 newest_selection_head,
6687 gutter_dimensions.width - gutter_dimensions.left_padding,
6688 cx,
6689 );
6690
6691 let show_code_actions = snapshot
6692 .show_code_actions
6693 .unwrap_or(gutter_settings.code_actions);
6694 if show_code_actions {
6695 let newest_selection_point =
6696 newest_selection_head.to_point(&snapshot.display_snapshot);
6697 let newest_selection_display_row =
6698 newest_selection_point.to_display_point(&snapshot).row();
6699 if !expanded_add_hunks_by_rows
6700 .contains_key(&newest_selection_display_row)
6701 {
6702 if !snapshot
6703 .is_line_folded(MultiBufferRow(newest_selection_point.row))
6704 {
6705 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
6706 MultiBufferRow(newest_selection_point.row),
6707 );
6708 if let Some((buffer, range)) = buffer {
6709 let buffer_id = buffer.remote_id();
6710 let row = range.start.row;
6711 let has_test_indicator = self
6712 .editor
6713 .read(cx)
6714 .tasks
6715 .contains_key(&(buffer_id, row));
6716
6717 if !has_test_indicator {
6718 code_actions_indicator = self
6719 .layout_code_actions_indicator(
6720 line_height,
6721 newest_selection_head,
6722 scroll_pixel_position,
6723 &gutter_dimensions,
6724 &gutter_hitbox,
6725 &rows_with_hunk_bounds,
6726 cx,
6727 );
6728 }
6729 }
6730 }
6731 }
6732 }
6733 }
6734 }
6735
6736 let test_indicators = if gutter_settings.runnables {
6737 self.layout_run_indicators(
6738 line_height,
6739 start_row..end_row,
6740 scroll_pixel_position,
6741 &gutter_dimensions,
6742 &gutter_hitbox,
6743 &rows_with_hunk_bounds,
6744 &snapshot,
6745 cx,
6746 )
6747 } else {
6748 Vec::new()
6749 };
6750
6751 self.layout_signature_help(
6752 &hitbox,
6753 content_origin,
6754 scroll_pixel_position,
6755 newest_selection_head,
6756 start_row,
6757 &line_layouts,
6758 line_height,
6759 em_width,
6760 cx,
6761 );
6762
6763 if !cx.has_active_drag() {
6764 self.layout_hover_popovers(
6765 &snapshot,
6766 &hitbox,
6767 &text_hitbox,
6768 start_row..end_row,
6769 content_origin,
6770 scroll_pixel_position,
6771 &line_layouts,
6772 line_height,
6773 em_width,
6774 cx,
6775 );
6776 }
6777
6778 let inline_completion_popover = self.layout_inline_completion_popover(
6779 &text_hitbox.bounds,
6780 &snapshot,
6781 start_row..end_row,
6782 scroll_position.y,
6783 scroll_position.y + height_in_lines,
6784 &line_layouts,
6785 line_height,
6786 scroll_pixel_position,
6787 editor_width,
6788 &style,
6789 cx,
6790 );
6791
6792 let mouse_context_menu = self.layout_mouse_context_menu(
6793 &snapshot,
6794 start_row..end_row,
6795 content_origin,
6796 cx,
6797 );
6798
6799 cx.with_element_namespace("crease_toggles", |cx| {
6800 self.prepaint_crease_toggles(
6801 &mut crease_toggles,
6802 line_height,
6803 &gutter_dimensions,
6804 gutter_settings,
6805 scroll_pixel_position,
6806 &gutter_hitbox,
6807 cx,
6808 )
6809 });
6810
6811 let invisible_symbol_font_size = font_size / 2.;
6812 let tab_invisible = cx
6813 .text_system()
6814 .shape_line(
6815 "→".into(),
6816 invisible_symbol_font_size,
6817 &[TextRun {
6818 len: "→".len(),
6819 font: self.style.text.font(),
6820 color: cx.theme().colors().editor_invisible,
6821 background_color: None,
6822 underline: None,
6823 strikethrough: None,
6824 }],
6825 )
6826 .unwrap();
6827 let space_invisible = cx
6828 .text_system()
6829 .shape_line(
6830 "•".into(),
6831 invisible_symbol_font_size,
6832 &[TextRun {
6833 len: "•".len(),
6834 font: self.style.text.font(),
6835 color: cx.theme().colors().editor_invisible,
6836 background_color: None,
6837 underline: None,
6838 strikethrough: None,
6839 }],
6840 )
6841 .unwrap();
6842
6843 EditorLayout {
6844 mode: snapshot.mode,
6845 position_map: Rc::new(PositionMap {
6846 size: bounds.size,
6847 scroll_pixel_position,
6848 scroll_max,
6849 line_layouts,
6850 line_height,
6851 em_width,
6852 em_advance,
6853 snapshot,
6854 }),
6855 visible_display_row_range: start_row..end_row,
6856 wrap_guides,
6857 indent_guides,
6858 hitbox,
6859 text_hitbox,
6860 gutter_hitbox,
6861 display_hunks,
6862 content_origin,
6863 scrollbars_layout,
6864 active_rows,
6865 highlighted_rows,
6866 highlighted_ranges,
6867 highlighted_gutter_ranges,
6868 redacted_ranges,
6869 line_elements,
6870 line_numbers,
6871 blamed_display_rows,
6872 inline_blame,
6873 blocks,
6874 cursors,
6875 visible_cursors,
6876 selections,
6877 inline_completion_popover,
6878 mouse_context_menu,
6879 test_indicators,
6880 code_actions_indicator,
6881 crease_toggles,
6882 crease_trailers,
6883 tab_invisible,
6884 space_invisible,
6885 sticky_buffer_header,
6886 }
6887 })
6888 })
6889 })
6890 }
6891
6892 fn paint(
6893 &mut self,
6894 _: Option<&GlobalElementId>,
6895 bounds: Bounds<gpui::Pixels>,
6896 _: &mut Self::RequestLayoutState,
6897 layout: &mut Self::PrepaintState,
6898 cx: &mut WindowContext,
6899 ) {
6900 let focus_handle = self.editor.focus_handle(cx);
6901 let key_context = self.editor.update(cx, |editor, cx| editor.key_context(cx));
6902
6903 cx.set_key_context(key_context);
6904 cx.handle_input(
6905 &focus_handle,
6906 ElementInputHandler::new(bounds, self.editor.clone()),
6907 );
6908 self.register_actions(cx);
6909 self.register_key_listeners(cx, layout);
6910
6911 let text_style = TextStyleRefinement {
6912 font_size: Some(self.style.text.font_size),
6913 line_height: Some(self.style.text.line_height),
6914 ..Default::default()
6915 };
6916 let hovered_hunk = layout
6917 .display_hunks
6918 .iter()
6919 .find_map(|(hunk, hunk_hitbox)| match hunk {
6920 DisplayDiffHunk::Folded { .. } => None,
6921 DisplayDiffHunk::Unfolded {
6922 diff_base_byte_range,
6923 multi_buffer_range,
6924 status,
6925 ..
6926 } => {
6927 if hunk_hitbox
6928 .as_ref()
6929 .map(|hitbox| hitbox.is_hovered(cx))
6930 .unwrap_or(false)
6931 {
6932 Some(HoveredHunk {
6933 status: *status,
6934 multi_buffer_range: multi_buffer_range.clone(),
6935 diff_base_byte_range: diff_base_byte_range.clone(),
6936 })
6937 } else {
6938 None
6939 }
6940 }
6941 });
6942 let rem_size = self.rem_size(cx);
6943 cx.with_rem_size(rem_size, |cx| {
6944 cx.with_text_style(Some(text_style), |cx| {
6945 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
6946 self.paint_mouse_listeners(layout, hovered_hunk, cx);
6947 self.paint_background(layout, cx);
6948 self.paint_indent_guides(layout, cx);
6949
6950 if layout.gutter_hitbox.size.width > Pixels::ZERO {
6951 self.paint_blamed_display_rows(layout, cx);
6952 self.paint_line_numbers(layout, cx);
6953 }
6954
6955 self.paint_text(layout, cx);
6956
6957 if layout.gutter_hitbox.size.width > Pixels::ZERO {
6958 self.paint_gutter_highlights(layout, cx);
6959 self.paint_gutter_indicators(layout, cx);
6960 }
6961
6962 if !layout.blocks.is_empty() {
6963 cx.with_element_namespace("blocks", |cx| {
6964 self.paint_blocks(layout, cx);
6965 });
6966 }
6967
6968 cx.with_element_namespace("blocks", |cx| {
6969 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
6970 sticky_header.paint(cx)
6971 }
6972 });
6973
6974 self.paint_scrollbars(layout, cx);
6975 self.paint_inline_completion_popover(layout, cx);
6976 self.paint_mouse_context_menu(layout, cx);
6977 });
6978 })
6979 })
6980 }
6981}
6982
6983pub(super) fn gutter_bounds(
6984 editor_bounds: Bounds<Pixels>,
6985 gutter_dimensions: GutterDimensions,
6986) -> Bounds<Pixels> {
6987 Bounds {
6988 origin: editor_bounds.origin,
6989 size: size(gutter_dimensions.width, editor_bounds.size.height),
6990 }
6991}
6992
6993struct ScrollbarRangeData {
6994 scrollbar_bounds: Bounds<Pixels>,
6995 scroll_range: Bounds<Pixels>,
6996 letter_size: Size<Pixels>,
6997}
6998
6999impl ScrollbarRangeData {
7000 pub fn new(
7001 scrollbar_bounds: Bounds<Pixels>,
7002 letter_size: Size<Pixels>,
7003 snapshot: &EditorSnapshot,
7004 longest_line_width: Pixels,
7005 style: &EditorStyle,
7006 cx: &WindowContext,
7007 ) -> ScrollbarRangeData {
7008 // TODO: Simplify this function down, it requires a lot of parameters
7009 let max_row = snapshot.max_point().row();
7010 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7011
7012 let scrollbar_width = style.scrollbar_width;
7013
7014 let settings = EditorSettings::get_global(cx);
7015 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7016 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7017 ScrollBeyondLastLine::Off => px(1.),
7018 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7019 };
7020
7021 let overscroll = size(
7022 scrollbar_width + (letter_size.width / 2.0),
7023 letter_size.height * scroll_beyond_last_line,
7024 );
7025
7026 let scroll_range = Bounds {
7027 origin: scrollbar_bounds.origin,
7028 size: text_bounds_size + overscroll,
7029 };
7030
7031 ScrollbarRangeData {
7032 scrollbar_bounds,
7033 scroll_range,
7034 letter_size,
7035 }
7036 }
7037}
7038
7039impl IntoElement for EditorElement {
7040 type Element = Self;
7041
7042 fn into_element(self) -> Self::Element {
7043 self
7044 }
7045}
7046
7047pub struct EditorLayout {
7048 position_map: Rc<PositionMap>,
7049 hitbox: Hitbox,
7050 text_hitbox: Hitbox,
7051 gutter_hitbox: Hitbox,
7052 content_origin: gpui::Point<Pixels>,
7053 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7054 mode: EditorMode,
7055 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7056 indent_guides: Option<Vec<IndentGuideLayout>>,
7057 visible_display_row_range: Range<DisplayRow>,
7058 active_rows: BTreeMap<DisplayRow, bool>,
7059 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7060 line_elements: SmallVec<[AnyElement; 1]>,
7061 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7062 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7063 blamed_display_rows: Option<Vec<AnyElement>>,
7064 inline_blame: Option<AnyElement>,
7065 blocks: Vec<BlockLayout>,
7066 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7067 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7068 redacted_ranges: Vec<Range<DisplayPoint>>,
7069 cursors: Vec<(DisplayPoint, Hsla)>,
7070 visible_cursors: Vec<CursorLayout>,
7071 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7072 code_actions_indicator: Option<AnyElement>,
7073 test_indicators: Vec<AnyElement>,
7074 crease_toggles: Vec<Option<AnyElement>>,
7075 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7076 inline_completion_popover: Option<AnyElement>,
7077 mouse_context_menu: Option<AnyElement>,
7078 tab_invisible: ShapedLine,
7079 space_invisible: ShapedLine,
7080 sticky_buffer_header: Option<AnyElement>,
7081}
7082
7083impl EditorLayout {
7084 fn line_end_overshoot(&self) -> Pixels {
7085 0.15 * self.position_map.line_height
7086 }
7087}
7088
7089struct LineNumberLayout {
7090 shaped_line: ShapedLine,
7091 hitbox: Option<Hitbox>,
7092 display_row: DisplayRow,
7093}
7094
7095struct ColoredRange<T> {
7096 start: T,
7097 end: T,
7098 color: Hsla,
7099}
7100
7101#[derive(Clone)]
7102struct ScrollbarLayout {
7103 hitbox: Hitbox,
7104 visible_range: Range<f32>,
7105 visible: bool,
7106 text_unit_size: Pixels,
7107 thumb_size: Pixels,
7108 axis: Axis,
7109}
7110
7111impl ScrollbarLayout {
7112 const BORDER_WIDTH: Pixels = px(1.0);
7113 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7114 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7115 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7116
7117 fn thumb_bounds(&self) -> Bounds<Pixels> {
7118 match self.axis {
7119 Axis::Vertical => {
7120 let thumb_top = self.y_for_row(self.visible_range.start);
7121 let thumb_bottom = thumb_top + self.thumb_size;
7122 Bounds::from_corners(
7123 point(self.hitbox.left(), thumb_top),
7124 point(self.hitbox.right(), thumb_bottom),
7125 )
7126 }
7127 Axis::Horizontal => {
7128 let thumb_left =
7129 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7130 let thumb_right = thumb_left + self.thumb_size;
7131 Bounds::from_corners(
7132 point(thumb_left, self.hitbox.top()),
7133 point(thumb_right, self.hitbox.bottom()),
7134 )
7135 }
7136 }
7137 }
7138
7139 fn y_for_row(&self, row: f32) -> Pixels {
7140 self.hitbox.top() + row * self.text_unit_size
7141 }
7142
7143 fn marker_quads_for_ranges(
7144 &self,
7145 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7146 column: Option<usize>,
7147 ) -> Vec<PaintQuad> {
7148 struct MinMax {
7149 min: Pixels,
7150 max: Pixels,
7151 }
7152 let (x_range, height_limit) = if let Some(column) = column {
7153 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7154 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7155 let end = start + column_width;
7156 (
7157 Range { start, end },
7158 MinMax {
7159 min: Self::MIN_MARKER_HEIGHT,
7160 max: px(f32::MAX),
7161 },
7162 )
7163 } else {
7164 (
7165 Range {
7166 start: Self::BORDER_WIDTH,
7167 end: self.hitbox.size.width,
7168 },
7169 MinMax {
7170 min: Self::LINE_MARKER_HEIGHT,
7171 max: Self::LINE_MARKER_HEIGHT,
7172 },
7173 )
7174 };
7175
7176 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7177 let mut pixel_ranges = row_ranges
7178 .into_iter()
7179 .map(|range| {
7180 let start_y = row_to_y(range.start);
7181 let end_y = row_to_y(range.end)
7182 + self
7183 .text_unit_size
7184 .max(height_limit.min)
7185 .min(height_limit.max);
7186 ColoredRange {
7187 start: start_y,
7188 end: end_y,
7189 color: range.color,
7190 }
7191 })
7192 .peekable();
7193
7194 let mut quads = Vec::new();
7195 while let Some(mut pixel_range) = pixel_ranges.next() {
7196 while let Some(next_pixel_range) = pixel_ranges.peek() {
7197 if pixel_range.end >= next_pixel_range.start - px(1.0)
7198 && pixel_range.color == next_pixel_range.color
7199 {
7200 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7201 pixel_ranges.next();
7202 } else {
7203 break;
7204 }
7205 }
7206
7207 let bounds = Bounds::from_corners(
7208 point(x_range.start, pixel_range.start),
7209 point(x_range.end, pixel_range.end),
7210 );
7211 quads.push(quad(
7212 bounds,
7213 Corners::default(),
7214 pixel_range.color,
7215 Edges::default(),
7216 Hsla::transparent_black(),
7217 ));
7218 }
7219
7220 quads
7221 }
7222}
7223
7224struct CreaseTrailerLayout {
7225 element: AnyElement,
7226 bounds: Bounds<Pixels>,
7227}
7228
7229struct PositionMap {
7230 size: Size<Pixels>,
7231 line_height: Pixels,
7232 scroll_pixel_position: gpui::Point<Pixels>,
7233 scroll_max: gpui::Point<f32>,
7234 em_width: Pixels,
7235 em_advance: Pixels,
7236 line_layouts: Vec<LineWithInvisibles>,
7237 snapshot: EditorSnapshot,
7238}
7239
7240#[derive(Debug, Copy, Clone)]
7241pub struct PointForPosition {
7242 pub previous_valid: DisplayPoint,
7243 pub next_valid: DisplayPoint,
7244 pub exact_unclipped: DisplayPoint,
7245 pub column_overshoot_after_line_end: u32,
7246}
7247
7248impl PointForPosition {
7249 pub fn as_valid(&self) -> Option<DisplayPoint> {
7250 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7251 Some(self.previous_valid)
7252 } else {
7253 None
7254 }
7255 }
7256}
7257
7258impl PositionMap {
7259 fn point_for_position(
7260 &self,
7261 text_bounds: Bounds<Pixels>,
7262 position: gpui::Point<Pixels>,
7263 ) -> PointForPosition {
7264 let scroll_position = self.snapshot.scroll_position();
7265 let position = position - text_bounds.origin;
7266 let y = position.y.max(px(0.)).min(self.size.height);
7267 let x = position.x + (scroll_position.x * self.em_width);
7268 let row = ((y / self.line_height) + scroll_position.y) as u32;
7269
7270 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7271 .line_layouts
7272 .get(row as usize - scroll_position.y as usize)
7273 {
7274 if let Some(ix) = line.index_for_x(x) {
7275 (ix as u32, px(0.))
7276 } else {
7277 (line.len as u32, px(0.).max(x - line.width))
7278 }
7279 } else {
7280 (0, x)
7281 };
7282
7283 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7284 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7285 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7286
7287 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7288 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7289 PointForPosition {
7290 previous_valid,
7291 next_valid,
7292 exact_unclipped,
7293 column_overshoot_after_line_end,
7294 }
7295 }
7296}
7297
7298struct BlockLayout {
7299 id: BlockId,
7300 row: Option<DisplayRow>,
7301 element: AnyElement,
7302 available_space: Size<AvailableSpace>,
7303 style: BlockStyle,
7304}
7305
7306fn layout_line(
7307 row: DisplayRow,
7308 snapshot: &EditorSnapshot,
7309 style: &EditorStyle,
7310 text_width: Pixels,
7311 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7312 cx: &mut WindowContext,
7313) -> LineWithInvisibles {
7314 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7315 LineWithInvisibles::from_chunks(
7316 chunks,
7317 &style,
7318 MAX_LINE_LEN,
7319 1,
7320 snapshot.mode,
7321 text_width,
7322 is_row_soft_wrapped,
7323 cx,
7324 )
7325 .pop()
7326 .unwrap()
7327}
7328
7329#[derive(Debug)]
7330pub struct IndentGuideLayout {
7331 origin: gpui::Point<Pixels>,
7332 length: Pixels,
7333 single_indent_width: Pixels,
7334 depth: u32,
7335 active: bool,
7336 settings: IndentGuideSettings,
7337}
7338
7339pub struct CursorLayout {
7340 origin: gpui::Point<Pixels>,
7341 block_width: Pixels,
7342 line_height: Pixels,
7343 color: Hsla,
7344 shape: CursorShape,
7345 block_text: Option<ShapedLine>,
7346 cursor_name: Option<AnyElement>,
7347}
7348
7349#[derive(Debug)]
7350pub struct CursorName {
7351 string: SharedString,
7352 color: Hsla,
7353 is_top_row: bool,
7354}
7355
7356impl CursorLayout {
7357 pub fn new(
7358 origin: gpui::Point<Pixels>,
7359 block_width: Pixels,
7360 line_height: Pixels,
7361 color: Hsla,
7362 shape: CursorShape,
7363 block_text: Option<ShapedLine>,
7364 ) -> CursorLayout {
7365 CursorLayout {
7366 origin,
7367 block_width,
7368 line_height,
7369 color,
7370 shape,
7371 block_text,
7372 cursor_name: None,
7373 }
7374 }
7375
7376 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7377 Bounds {
7378 origin: self.origin + origin,
7379 size: size(self.block_width, self.line_height),
7380 }
7381 }
7382
7383 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7384 match self.shape {
7385 CursorShape::Bar => Bounds {
7386 origin: self.origin + origin,
7387 size: size(px(2.0), self.line_height),
7388 },
7389 CursorShape::Block | CursorShape::Hollow => Bounds {
7390 origin: self.origin + origin,
7391 size: size(self.block_width, self.line_height),
7392 },
7393 CursorShape::Underline => Bounds {
7394 origin: self.origin
7395 + origin
7396 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
7397 size: size(self.block_width, px(2.0)),
7398 },
7399 }
7400 }
7401
7402 pub fn layout(
7403 &mut self,
7404 origin: gpui::Point<Pixels>,
7405 cursor_name: Option<CursorName>,
7406 cx: &mut WindowContext,
7407 ) {
7408 if let Some(cursor_name) = cursor_name {
7409 let bounds = self.bounds(origin);
7410 let text_size = self.line_height / 1.5;
7411
7412 let name_origin = if cursor_name.is_top_row {
7413 point(bounds.right() - px(1.), bounds.top())
7414 } else {
7415 match self.shape {
7416 CursorShape::Bar => point(
7417 bounds.right() - px(2.),
7418 bounds.top() - text_size / 2. - px(1.),
7419 ),
7420 _ => point(
7421 bounds.right() - px(1.),
7422 bounds.top() - text_size / 2. - px(1.),
7423 ),
7424 }
7425 };
7426 let mut name_element = div()
7427 .bg(self.color)
7428 .text_size(text_size)
7429 .px_0p5()
7430 .line_height(text_size + px(2.))
7431 .text_color(cursor_name.color)
7432 .child(cursor_name.string.clone())
7433 .into_any_element();
7434
7435 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), cx);
7436
7437 self.cursor_name = Some(name_element);
7438 }
7439 }
7440
7441 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
7442 let bounds = self.bounds(origin);
7443
7444 //Draw background or border quad
7445 let cursor = if matches!(self.shape, CursorShape::Hollow) {
7446 outline(bounds, self.color)
7447 } else {
7448 fill(bounds, self.color)
7449 };
7450
7451 if let Some(name) = &mut self.cursor_name {
7452 name.paint(cx);
7453 }
7454
7455 cx.paint_quad(cursor);
7456
7457 if let Some(block_text) = &self.block_text {
7458 block_text
7459 .paint(self.origin + origin, self.line_height, cx)
7460 .log_err();
7461 }
7462 }
7463
7464 pub fn shape(&self) -> CursorShape {
7465 self.shape
7466 }
7467}
7468
7469#[derive(Debug)]
7470pub struct HighlightedRange {
7471 pub start_y: Pixels,
7472 pub line_height: Pixels,
7473 pub lines: Vec<HighlightedRangeLine>,
7474 pub color: Hsla,
7475 pub corner_radius: Pixels,
7476}
7477
7478#[derive(Debug)]
7479pub struct HighlightedRangeLine {
7480 pub start_x: Pixels,
7481 pub end_x: Pixels,
7482}
7483
7484impl HighlightedRange {
7485 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
7486 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
7487 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
7488 self.paint_lines(
7489 self.start_y + self.line_height,
7490 &self.lines[1..],
7491 bounds,
7492 cx,
7493 );
7494 } else {
7495 self.paint_lines(self.start_y, &self.lines, bounds, cx);
7496 }
7497 }
7498
7499 fn paint_lines(
7500 &self,
7501 start_y: Pixels,
7502 lines: &[HighlightedRangeLine],
7503 _bounds: Bounds<Pixels>,
7504 cx: &mut WindowContext,
7505 ) {
7506 if lines.is_empty() {
7507 return;
7508 }
7509
7510 let first_line = lines.first().unwrap();
7511 let last_line = lines.last().unwrap();
7512
7513 let first_top_left = point(first_line.start_x, start_y);
7514 let first_top_right = point(first_line.end_x, start_y);
7515
7516 let curve_height = point(Pixels::ZERO, self.corner_radius);
7517 let curve_width = |start_x: Pixels, end_x: Pixels| {
7518 let max = (end_x - start_x) / 2.;
7519 let width = if max < self.corner_radius {
7520 max
7521 } else {
7522 self.corner_radius
7523 };
7524
7525 point(width, Pixels::ZERO)
7526 };
7527
7528 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
7529 let mut path = gpui::Path::new(first_top_right - top_curve_width);
7530 path.curve_to(first_top_right + curve_height, first_top_right);
7531
7532 let mut iter = lines.iter().enumerate().peekable();
7533 while let Some((ix, line)) = iter.next() {
7534 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
7535
7536 if let Some((_, next_line)) = iter.peek() {
7537 let next_top_right = point(next_line.end_x, bottom_right.y);
7538
7539 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
7540 Ordering::Equal => {
7541 path.line_to(bottom_right);
7542 }
7543 Ordering::Less => {
7544 let curve_width = curve_width(next_top_right.x, bottom_right.x);
7545 path.line_to(bottom_right - curve_height);
7546 if self.corner_radius > Pixels::ZERO {
7547 path.curve_to(bottom_right - curve_width, bottom_right);
7548 }
7549 path.line_to(next_top_right + curve_width);
7550 if self.corner_radius > Pixels::ZERO {
7551 path.curve_to(next_top_right + curve_height, next_top_right);
7552 }
7553 }
7554 Ordering::Greater => {
7555 let curve_width = curve_width(bottom_right.x, next_top_right.x);
7556 path.line_to(bottom_right - curve_height);
7557 if self.corner_radius > Pixels::ZERO {
7558 path.curve_to(bottom_right + curve_width, bottom_right);
7559 }
7560 path.line_to(next_top_right - curve_width);
7561 if self.corner_radius > Pixels::ZERO {
7562 path.curve_to(next_top_right + curve_height, next_top_right);
7563 }
7564 }
7565 }
7566 } else {
7567 let curve_width = curve_width(line.start_x, line.end_x);
7568 path.line_to(bottom_right - curve_height);
7569 if self.corner_radius > Pixels::ZERO {
7570 path.curve_to(bottom_right - curve_width, bottom_right);
7571 }
7572
7573 let bottom_left = point(line.start_x, bottom_right.y);
7574 path.line_to(bottom_left + curve_width);
7575 if self.corner_radius > Pixels::ZERO {
7576 path.curve_to(bottom_left - curve_height, bottom_left);
7577 }
7578 }
7579 }
7580
7581 if first_line.start_x > last_line.start_x {
7582 let curve_width = curve_width(last_line.start_x, first_line.start_x);
7583 let second_top_left = point(last_line.start_x, start_y + self.line_height);
7584 path.line_to(second_top_left + curve_height);
7585 if self.corner_radius > Pixels::ZERO {
7586 path.curve_to(second_top_left + curve_width, second_top_left);
7587 }
7588 let first_bottom_left = point(first_line.start_x, second_top_left.y);
7589 path.line_to(first_bottom_left - curve_width);
7590 if self.corner_radius > Pixels::ZERO {
7591 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
7592 }
7593 }
7594
7595 path.line_to(first_top_left + curve_height);
7596 if self.corner_radius > Pixels::ZERO {
7597 path.curve_to(first_top_left + top_curve_width, first_top_left);
7598 }
7599 path.line_to(first_top_right - top_curve_width);
7600
7601 cx.paint_path(path, self.color);
7602 }
7603}
7604
7605pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
7606 (delta.pow(1.5) / 100.0).into()
7607}
7608
7609fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
7610 (delta.pow(1.2) / 300.0).into()
7611}
7612
7613pub fn register_action<T: Action>(
7614 view: &View<Editor>,
7615 cx: &mut WindowContext,
7616 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
7617) {
7618 let view = view.clone();
7619 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
7620 let action = action.downcast_ref().unwrap();
7621 if phase == DispatchPhase::Bubble {
7622 view.update(cx, |editor, cx| {
7623 listener(editor, action, cx);
7624 })
7625 }
7626 })
7627}
7628
7629fn compute_auto_height_layout(
7630 editor: &mut Editor,
7631 max_lines: usize,
7632 max_line_number_width: Pixels,
7633 known_dimensions: Size<Option<Pixels>>,
7634 available_width: AvailableSpace,
7635 cx: &mut ViewContext<Editor>,
7636) -> Option<Size<Pixels>> {
7637 let width = known_dimensions.width.or({
7638 if let AvailableSpace::Definite(available_width) = available_width {
7639 Some(available_width)
7640 } else {
7641 None
7642 }
7643 })?;
7644 if let Some(height) = known_dimensions.height {
7645 return Some(size(width, height));
7646 }
7647
7648 let style = editor.style.as_ref().unwrap();
7649 let font_id = cx.text_system().resolve_font(&style.text.font());
7650 let font_size = style.text.font_size.to_pixels(cx.rem_size());
7651 let line_height = style.text.line_height_in_pixels(cx.rem_size());
7652 let em_width = cx
7653 .text_system()
7654 .typographic_bounds(font_id, font_size, 'm')
7655 .unwrap()
7656 .size
7657 .width;
7658 let em_advance = cx
7659 .text_system()
7660 .advance(font_id, font_size, 'm')
7661 .unwrap()
7662 .width;
7663
7664 let mut snapshot = editor.snapshot(cx);
7665 let gutter_dimensions = snapshot.gutter_dimensions(
7666 font_id,
7667 font_size,
7668 em_width,
7669 em_advance,
7670 max_line_number_width,
7671 cx,
7672 );
7673
7674 editor.gutter_dimensions = gutter_dimensions;
7675 let text_width = width - gutter_dimensions.width;
7676 let overscroll = size(em_width, px(0.));
7677
7678 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
7679 if editor.set_wrap_width(Some(editor_width), cx) {
7680 snapshot = editor.snapshot(cx);
7681 }
7682
7683 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
7684 let height = scroll_height
7685 .max(line_height)
7686 .min(line_height * max_lines as f32);
7687
7688 Some(size(width, height))
7689}
7690
7691#[cfg(test)]
7692mod tests {
7693 use super::*;
7694 use crate::{
7695 display_map::{BlockPlacement, BlockProperties},
7696 editor_tests::{init_test, update_test_language_settings},
7697 Editor, MultiBuffer,
7698 };
7699 use gpui::{TestAppContext, VisualTestContext};
7700 use language::language_settings;
7701 use log::info;
7702 use similar::DiffableStr;
7703 use std::num::NonZeroU32;
7704 use util::test::sample_text;
7705
7706 #[gpui::test]
7707 fn test_shape_line_numbers(cx: &mut TestAppContext) {
7708 init_test(cx, |_| {});
7709 let window = cx.add_window(|cx| {
7710 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
7711 Editor::new(EditorMode::Full, buffer, None, true, cx)
7712 });
7713
7714 let editor = window.root(cx).unwrap();
7715 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7716 let line_height = window
7717 .update(cx, |_, cx| style.text.line_height_in_pixels(cx.rem_size()))
7718 .unwrap();
7719 let element = EditorElement::new(&editor, style);
7720 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
7721
7722 let layouts = cx
7723 .update_window(*window, |_, cx| {
7724 element.layout_line_numbers(
7725 None,
7726 GutterDimensions {
7727 left_padding: Pixels::ZERO,
7728 right_padding: Pixels::ZERO,
7729 width: px(30.0),
7730 margin: Pixels::ZERO,
7731 git_blame_entries_width: None,
7732 },
7733 line_height,
7734 gpui::Point::default(),
7735 DisplayRow(0)..DisplayRow(6),
7736 (0..6).map(MultiBufferRow).map(Some),
7737 Some(DisplayPoint::new(DisplayRow(0), 0)),
7738 &snapshot,
7739 cx,
7740 )
7741 })
7742 .unwrap();
7743 assert_eq!(layouts.len(), 6);
7744
7745 let relative_rows = window
7746 .update(cx, |editor, cx| {
7747 let snapshot = editor.snapshot(cx);
7748 element.calculate_relative_line_numbers(
7749 &snapshot,
7750 &(DisplayRow(0)..DisplayRow(6)),
7751 Some(DisplayRow(3)),
7752 )
7753 })
7754 .unwrap();
7755 assert_eq!(relative_rows[&DisplayRow(0)], 3);
7756 assert_eq!(relative_rows[&DisplayRow(1)], 2);
7757 assert_eq!(relative_rows[&DisplayRow(2)], 1);
7758 // current line has no relative number
7759 assert_eq!(relative_rows[&DisplayRow(4)], 1);
7760 assert_eq!(relative_rows[&DisplayRow(5)], 2);
7761
7762 // works if cursor is before screen
7763 let relative_rows = window
7764 .update(cx, |editor, cx| {
7765 let snapshot = editor.snapshot(cx);
7766 element.calculate_relative_line_numbers(
7767 &snapshot,
7768 &(DisplayRow(3)..DisplayRow(6)),
7769 Some(DisplayRow(1)),
7770 )
7771 })
7772 .unwrap();
7773 assert_eq!(relative_rows.len(), 3);
7774 assert_eq!(relative_rows[&DisplayRow(3)], 2);
7775 assert_eq!(relative_rows[&DisplayRow(4)], 3);
7776 assert_eq!(relative_rows[&DisplayRow(5)], 4);
7777
7778 // works if cursor is after screen
7779 let relative_rows = window
7780 .update(cx, |editor, cx| {
7781 let snapshot = editor.snapshot(cx);
7782 element.calculate_relative_line_numbers(
7783 &snapshot,
7784 &(DisplayRow(0)..DisplayRow(3)),
7785 Some(DisplayRow(6)),
7786 )
7787 })
7788 .unwrap();
7789 assert_eq!(relative_rows.len(), 3);
7790 assert_eq!(relative_rows[&DisplayRow(0)], 5);
7791 assert_eq!(relative_rows[&DisplayRow(1)], 4);
7792 assert_eq!(relative_rows[&DisplayRow(2)], 3);
7793 }
7794
7795 #[gpui::test]
7796 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
7797 init_test(cx, |_| {});
7798
7799 let window = cx.add_window(|cx| {
7800 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
7801 Editor::new(EditorMode::Full, buffer, None, true, cx)
7802 });
7803 let cx = &mut VisualTestContext::from_window(*window, cx);
7804 let editor = window.root(cx).unwrap();
7805 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7806
7807 window
7808 .update(cx, |editor, cx| {
7809 editor.cursor_shape = CursorShape::Block;
7810 editor.change_selections(None, cx, |s| {
7811 s.select_ranges([
7812 Point::new(0, 0)..Point::new(1, 0),
7813 Point::new(3, 2)..Point::new(3, 3),
7814 Point::new(5, 6)..Point::new(6, 0),
7815 ]);
7816 });
7817 })
7818 .unwrap();
7819
7820 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7821 EditorElement::new(&editor, style)
7822 });
7823
7824 assert_eq!(state.selections.len(), 1);
7825 let local_selections = &state.selections[0].1;
7826 assert_eq!(local_selections.len(), 3);
7827 // moves cursor back one line
7828 assert_eq!(
7829 local_selections[0].head,
7830 DisplayPoint::new(DisplayRow(0), 6)
7831 );
7832 assert_eq!(
7833 local_selections[0].range,
7834 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
7835 );
7836
7837 // moves cursor back one column
7838 assert_eq!(
7839 local_selections[1].range,
7840 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
7841 );
7842 assert_eq!(
7843 local_selections[1].head,
7844 DisplayPoint::new(DisplayRow(3), 2)
7845 );
7846
7847 // leaves cursor on the max point
7848 assert_eq!(
7849 local_selections[2].range,
7850 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
7851 );
7852 assert_eq!(
7853 local_selections[2].head,
7854 DisplayPoint::new(DisplayRow(6), 0)
7855 );
7856
7857 // active lines does not include 1 (even though the range of the selection does)
7858 assert_eq!(
7859 state.active_rows.keys().cloned().collect::<Vec<_>>(),
7860 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
7861 );
7862
7863 // multi-buffer support
7864 // in DisplayPoint coordinates, this is what we're dealing with:
7865 // 0: [[file
7866 // 1: header
7867 // 2: section]]
7868 // 3: aaaaaa
7869 // 4: bbbbbb
7870 // 5: cccccc
7871 // 6:
7872 // 7: [[footer]]
7873 // 8: [[header]]
7874 // 9: ffffff
7875 // 10: gggggg
7876 // 11: hhhhhh
7877 // 12:
7878 // 13: [[footer]]
7879 // 14: [[file
7880 // 15: header
7881 // 16: section]]
7882 // 17: bbbbbb
7883 // 18: cccccc
7884 // 19: dddddd
7885 // 20: [[footer]]
7886 let window = cx.add_window(|cx| {
7887 let buffer = MultiBuffer::build_multi(
7888 [
7889 (
7890 &(sample_text(8, 6, 'a') + "\n"),
7891 vec![
7892 Point::new(0, 0)..Point::new(3, 0),
7893 Point::new(4, 0)..Point::new(7, 0),
7894 ],
7895 ),
7896 (
7897 &(sample_text(8, 6, 'a') + "\n"),
7898 vec![Point::new(1, 0)..Point::new(3, 0)],
7899 ),
7900 ],
7901 cx,
7902 );
7903 Editor::new(EditorMode::Full, buffer, None, true, cx)
7904 });
7905 let editor = window.root(cx).unwrap();
7906 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7907 let _state = window.update(cx, |editor, cx| {
7908 editor.cursor_shape = CursorShape::Block;
7909 editor.change_selections(None, cx, |s| {
7910 s.select_display_ranges([
7911 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
7912 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
7913 ]);
7914 });
7915 });
7916
7917 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7918 EditorElement::new(&editor, style)
7919 });
7920 assert_eq!(state.selections.len(), 1);
7921 let local_selections = &state.selections[0].1;
7922 assert_eq!(local_selections.len(), 2);
7923
7924 // moves cursor on excerpt boundary back a line
7925 // and doesn't allow selection to bleed through
7926 assert_eq!(
7927 local_selections[0].range,
7928 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
7929 );
7930 assert_eq!(
7931 local_selections[0].head,
7932 DisplayPoint::new(DisplayRow(6), 0)
7933 );
7934 // moves cursor on buffer boundary back two lines
7935 // and doesn't allow selection to bleed through
7936 assert_eq!(
7937 local_selections[1].range,
7938 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
7939 );
7940 assert_eq!(
7941 local_selections[1].head,
7942 DisplayPoint::new(DisplayRow(12), 0)
7943 );
7944 }
7945
7946 #[gpui::test]
7947 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
7948 init_test(cx, |_| {});
7949
7950 let window = cx.add_window(|cx| {
7951 let buffer = MultiBuffer::build_simple("", cx);
7952 Editor::new(EditorMode::Full, buffer, None, true, cx)
7953 });
7954 let cx = &mut VisualTestContext::from_window(*window, cx);
7955 let editor = window.root(cx).unwrap();
7956 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7957 window
7958 .update(cx, |editor, cx| {
7959 editor.set_placeholder_text("hello", cx);
7960 editor.insert_blocks(
7961 [BlockProperties {
7962 style: BlockStyle::Fixed,
7963 placement: BlockPlacement::Above(Anchor::min()),
7964 height: 3,
7965 render: Arc::new(|cx| div().h(3. * cx.line_height()).into_any()),
7966 priority: 0,
7967 }],
7968 None,
7969 cx,
7970 );
7971
7972 // Blur the editor so that it displays placeholder text.
7973 cx.blur();
7974 })
7975 .unwrap();
7976
7977 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7978 EditorElement::new(&editor, style)
7979 });
7980 assert_eq!(state.position_map.line_layouts.len(), 4);
7981 assert_eq!(state.line_numbers.len(), 1);
7982 assert_eq!(
7983 state
7984 .line_numbers
7985 .get(&MultiBufferRow(0))
7986 .and_then(|line_number| line_number.shaped_line.text.as_str()),
7987 Some("1")
7988 );
7989 }
7990
7991 #[gpui::test]
7992 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
7993 const TAB_SIZE: u32 = 4;
7994
7995 let input_text = "\t \t|\t| a b";
7996 let expected_invisibles = vec![
7997 Invisible::Tab {
7998 line_start_offset: 0,
7999 line_end_offset: TAB_SIZE as usize,
8000 },
8001 Invisible::Whitespace {
8002 line_offset: TAB_SIZE as usize,
8003 },
8004 Invisible::Tab {
8005 line_start_offset: TAB_SIZE as usize + 1,
8006 line_end_offset: TAB_SIZE as usize * 2,
8007 },
8008 Invisible::Tab {
8009 line_start_offset: TAB_SIZE as usize * 2 + 1,
8010 line_end_offset: TAB_SIZE as usize * 3,
8011 },
8012 Invisible::Whitespace {
8013 line_offset: TAB_SIZE as usize * 3 + 1,
8014 },
8015 Invisible::Whitespace {
8016 line_offset: TAB_SIZE as usize * 3 + 3,
8017 },
8018 ];
8019 assert_eq!(
8020 expected_invisibles.len(),
8021 input_text
8022 .chars()
8023 .filter(|initial_char| initial_char.is_whitespace())
8024 .count(),
8025 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8026 );
8027
8028 for show_line_numbers in [true, false] {
8029 init_test(cx, |s| {
8030 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8031 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8032 });
8033
8034 let actual_invisibles = collect_invisibles_from_new_editor(
8035 cx,
8036 EditorMode::Full,
8037 input_text,
8038 px(500.0),
8039 show_line_numbers,
8040 );
8041
8042 assert_eq!(expected_invisibles, actual_invisibles);
8043 }
8044 }
8045
8046 #[gpui::test]
8047 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8048 init_test(cx, |s| {
8049 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8050 s.defaults.tab_size = NonZeroU32::new(4);
8051 });
8052
8053 for editor_mode_without_invisibles in [
8054 EditorMode::SingleLine { auto_width: false },
8055 EditorMode::AutoHeight { max_lines: 100 },
8056 ] {
8057 for show_line_numbers in [true, false] {
8058 let invisibles = collect_invisibles_from_new_editor(
8059 cx,
8060 editor_mode_without_invisibles,
8061 "\t\t\t| | a b",
8062 px(500.0),
8063 show_line_numbers,
8064 );
8065 assert!(invisibles.is_empty(),
8066 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8067 }
8068 }
8069 }
8070
8071 #[gpui::test]
8072 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8073 let tab_size = 4;
8074 let input_text = "a\tbcd ".repeat(9);
8075 let repeated_invisibles = [
8076 Invisible::Tab {
8077 line_start_offset: 1,
8078 line_end_offset: tab_size as usize,
8079 },
8080 Invisible::Whitespace {
8081 line_offset: tab_size as usize + 3,
8082 },
8083 Invisible::Whitespace {
8084 line_offset: tab_size as usize + 4,
8085 },
8086 Invisible::Whitespace {
8087 line_offset: tab_size as usize + 5,
8088 },
8089 Invisible::Whitespace {
8090 line_offset: tab_size as usize + 6,
8091 },
8092 Invisible::Whitespace {
8093 line_offset: tab_size as usize + 7,
8094 },
8095 ];
8096 let expected_invisibles = std::iter::once(repeated_invisibles)
8097 .cycle()
8098 .take(9)
8099 .flatten()
8100 .collect::<Vec<_>>();
8101 assert_eq!(
8102 expected_invisibles.len(),
8103 input_text
8104 .chars()
8105 .filter(|initial_char| initial_char.is_whitespace())
8106 .count(),
8107 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8108 );
8109 info!("Expected invisibles: {expected_invisibles:?}");
8110
8111 init_test(cx, |_| {});
8112
8113 // Put the same string with repeating whitespace pattern into editors of various size,
8114 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8115 let resize_step = 10.0;
8116 let mut editor_width = 200.0;
8117 while editor_width <= 1000.0 {
8118 for show_line_numbers in [true, false] {
8119 update_test_language_settings(cx, |s| {
8120 s.defaults.tab_size = NonZeroU32::new(tab_size);
8121 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8122 s.defaults.preferred_line_length = Some(editor_width as u32);
8123 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8124 });
8125
8126 let actual_invisibles = collect_invisibles_from_new_editor(
8127 cx,
8128 EditorMode::Full,
8129 &input_text,
8130 px(editor_width),
8131 show_line_numbers,
8132 );
8133
8134 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8135 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8136 let mut i = 0;
8137 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8138 i = actual_index;
8139 match expected_invisibles.get(i) {
8140 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8141 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8142 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8143 _ => {
8144 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8145 }
8146 },
8147 None => {
8148 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8149 }
8150 }
8151 }
8152 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8153 assert!(
8154 missing_expected_invisibles.is_empty(),
8155 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8156 );
8157
8158 editor_width += resize_step;
8159 }
8160 }
8161 }
8162
8163 fn collect_invisibles_from_new_editor(
8164 cx: &mut TestAppContext,
8165 editor_mode: EditorMode,
8166 input_text: &str,
8167 editor_width: Pixels,
8168 show_line_numbers: bool,
8169 ) -> Vec<Invisible> {
8170 info!(
8171 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8172 editor_width.0
8173 );
8174 let window = cx.add_window(|cx| {
8175 let buffer = MultiBuffer::build_simple(input_text, cx);
8176 Editor::new(editor_mode, buffer, None, true, cx)
8177 });
8178 let cx = &mut VisualTestContext::from_window(*window, cx);
8179 let editor = window.root(cx).unwrap();
8180
8181 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8182 window
8183 .update(cx, |editor, cx| {
8184 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8185 editor.set_wrap_width(Some(editor_width), cx);
8186 editor.set_show_line_numbers(show_line_numbers, cx);
8187 })
8188 .unwrap();
8189 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
8190 EditorElement::new(&editor, style)
8191 });
8192 state
8193 .position_map
8194 .line_layouts
8195 .iter()
8196 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8197 .cloned()
8198 .collect()
8199 }
8200}