use crate::{ ActiveDiagnostic, BlockId, COLUMNAR_SELECTION_MODIFIERS, CURSORS_VISIBLE_FOR, ChunkRendererContext, ChunkReplacement, CodeActionSource, ConflictsOurs, ConflictsOursMarker, ConflictsOuter, ConflictsTheirs, ConflictsTheirsMarker, ContextMenuPlacement, CursorShape, CustomBlockId, DisplayDiffHunk, DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle, FILE_HEADER_HEIGHT, FocusedBlock, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor, InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineHighlight, LineUp, MAX_LINE_LEN, MIN_LINE_NUMBER_DIGITS, MINIMAP_FONT_SIZE, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts, PageDown, PageUp, PhantomBreakpointIndicator, Point, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight, Selection, SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold, code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP}, display_map::{ Block, BlockContext, BlockStyle, DisplaySnapshot, EditorMargins, FoldId, HighlightedChunk, ToDisplayPoint, }, editor_settings::{ CurrentLineHighlight, DoubleClickInMultibuffer, MinimapThumb, MinimapThumbBorder, MultiCursorModifier, ScrollBeyondLastLine, ScrollbarAxes, ScrollbarDiagnostics, ShowMinimap, ShowScrollbar, }, git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer}, hover_popover::{ self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT, POPOVER_RIGHT_OFFSET, hover_at, }, inlay_hint_settings, items::BufferSearchHighlights, mouse_context_menu::{self, MenuPosition}, scroll::{ActiveScrollbarState, ScrollbarThumbState, scroll_amount::ScrollAmount}, }; use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind}; use collections::{BTreeMap, HashMap}; use feature_flags::{DebuggerFeatureFlag, FeatureFlagAppExt}; use file_icons::FileIcons; use git::{ Oid, blame::{BlameEntry, ParsedCommitMessage}, status::FileStatus, }; use gpui::{ Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle, Bounds, ClickEvent, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox, HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero, Keystroke, Length, ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled, TextRun, TextStyleRefinement, WeakEntity, Window, anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad, relative, size, solid_background, transparent_black, }; use itertools::Itertools; use language::language_settings::{ IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings, ShowWhitespaceSetting, }; use markdown::Markdown; use multi_buffer::{ Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint, MultiBufferRow, RowInfo, }; use project::{ ProjectPath, debugger::breakpoint_store::{Breakpoint, BreakpointSessionState}, project_settings::{GitGutterSetting, GitHunkStyleSetting, ProjectSettings}, }; use settings::Settings; use smallvec::{SmallVec, smallvec}; use std::{ any::TypeId, borrow::Cow, cmp::{self, Ordering}, fmt::{self, Write}, iter, mem, ops::{Deref, Range}, rc::Rc, sync::Arc, time::Duration, }; use sum_tree::Bias; use text::BufferId; use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor}; use ui::{ButtonLike, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*}; use unicode_segmentation::UnicodeSegmentation; use util::{RangeExt, ResultExt, debug_panic}; use workspace::{CollaboratorId, Workspace, item::Item, notifications::NotifyTaskExt}; const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.; /// Determines what kinds of highlights should be applied to a lines background. #[derive(Clone, Copy, Default)] struct LineHighlightSpec { selection: bool, breakpoint: bool, _active_stack_frame: bool, } #[derive(Debug)] struct SelectionLayout { head: DisplayPoint, cursor_shape: CursorShape, is_newest: bool, is_local: bool, range: Range, active_rows: Range, user_name: Option, } impl SelectionLayout { fn new( selection: Selection, line_mode: bool, cursor_shape: CursorShape, map: &DisplaySnapshot, is_newest: bool, is_local: bool, user_name: Option, ) -> Self { let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot)); let display_selection = point_selection.map(|p| p.to_display_point(map)); let mut range = display_selection.range(); let mut head = display_selection.head(); let mut active_rows = map.prev_line_boundary(point_selection.start).1.row() ..map.next_line_boundary(point_selection.end).1.row(); // vim visual line mode if line_mode { let point_range = map.expand_to_line(point_selection.range()); range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map); } // any vim visual mode (including line mode) if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow) && !range.is_empty() && !selection.reversed { if head.column() > 0 { head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left) } else if head.row().0 > 0 && head != map.max_point() { head = map.clip_point( DisplayPoint::new( head.row().previous_row(), map.line_len(head.row().previous_row()), ), Bias::Left, ); // updating range.end is a no-op unless you're cursor is // on the newline containing a multi-buffer divider // in which case the clip_point may have moved the head up // an additional row. range.end = DisplayPoint::new(head.row().next_row(), 0); active_rows.end = head.row(); } } Self { head, cursor_shape, is_newest, is_local, range, active_rows, user_name, } } } pub struct EditorElement { editor: Entity, style: EditorStyle, } type DisplayRowDelta = u32; impl EditorElement { pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.); pub fn new(editor: &Entity, style: EditorStyle) -> Self { Self { editor: editor.clone(), style, } } fn register_actions(&self, window: &mut Window, cx: &mut App) { let editor = &self.editor; editor.update(cx, |editor, cx| { for action in editor.editor_actions.borrow().values() { (action)(window, cx) } }); crate::rust_analyzer_ext::apply_related_actions(editor, window, cx); crate::clangd_ext::apply_related_actions(editor, window, cx); register_action(editor, window, Editor::open_context_menu); register_action(editor, window, Editor::move_left); register_action(editor, window, Editor::move_right); register_action(editor, window, Editor::move_down); register_action(editor, window, Editor::move_down_by_lines); register_action(editor, window, Editor::select_down_by_lines); register_action(editor, window, Editor::move_up); register_action(editor, window, Editor::move_up_by_lines); register_action(editor, window, Editor::select_up_by_lines); register_action(editor, window, Editor::select_page_down); register_action(editor, window, Editor::select_page_up); register_action(editor, window, Editor::cancel); register_action(editor, window, Editor::newline); register_action(editor, window, Editor::newline_above); register_action(editor, window, Editor::newline_below); register_action(editor, window, Editor::backspace); register_action(editor, window, Editor::delete); register_action(editor, window, Editor::tab); register_action(editor, window, Editor::backtab); register_action(editor, window, Editor::indent); register_action(editor, window, Editor::outdent); register_action(editor, window, Editor::autoindent); register_action(editor, window, Editor::delete_line); register_action(editor, window, Editor::join_lines); register_action(editor, window, Editor::sort_lines_case_sensitive); register_action(editor, window, Editor::sort_lines_case_insensitive); register_action(editor, window, Editor::reverse_lines); register_action(editor, window, Editor::shuffle_lines); register_action(editor, window, Editor::toggle_case); register_action(editor, window, Editor::convert_to_upper_case); register_action(editor, window, Editor::convert_to_lower_case); register_action(editor, window, Editor::convert_to_title_case); register_action(editor, window, Editor::convert_to_snake_case); register_action(editor, window, Editor::convert_to_kebab_case); register_action(editor, window, Editor::convert_to_upper_camel_case); register_action(editor, window, Editor::convert_to_lower_camel_case); register_action(editor, window, Editor::convert_to_opposite_case); register_action(editor, window, Editor::convert_to_rot13); register_action(editor, window, Editor::convert_to_rot47); register_action(editor, window, Editor::delete_to_previous_word_start); register_action(editor, window, Editor::delete_to_previous_subword_start); register_action(editor, window, Editor::delete_to_next_word_end); register_action(editor, window, Editor::delete_to_next_subword_end); register_action(editor, window, Editor::delete_to_beginning_of_line); register_action(editor, window, Editor::delete_to_end_of_line); register_action(editor, window, Editor::cut_to_end_of_line); register_action(editor, window, Editor::duplicate_line_up); register_action(editor, window, Editor::duplicate_line_down); register_action(editor, window, Editor::duplicate_selection); register_action(editor, window, Editor::move_line_up); register_action(editor, window, Editor::move_line_down); register_action(editor, window, Editor::transpose); register_action(editor, window, Editor::rewrap); register_action(editor, window, Editor::cut); register_action(editor, window, Editor::kill_ring_cut); register_action(editor, window, Editor::kill_ring_yank); register_action(editor, window, Editor::copy); register_action(editor, window, Editor::copy_and_trim); register_action(editor, window, Editor::paste); register_action(editor, window, Editor::undo); register_action(editor, window, Editor::redo); register_action(editor, window, Editor::move_page_up); register_action(editor, window, Editor::move_page_down); register_action(editor, window, Editor::next_screen); register_action(editor, window, Editor::scroll_cursor_top); register_action(editor, window, Editor::scroll_cursor_center); register_action(editor, window, Editor::scroll_cursor_bottom); register_action(editor, window, Editor::scroll_cursor_center_top_bottom); register_action(editor, window, |editor, _: &LineDown, window, cx| { editor.scroll_screen(&ScrollAmount::Line(1.), window, cx) }); register_action(editor, window, |editor, _: &LineUp, window, cx| { editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx) }); register_action(editor, window, |editor, _: &HalfPageDown, window, cx| { editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx) }); register_action( editor, window, |editor, HandleInput(text): &HandleInput, window, cx| { if text.is_empty() { return; } editor.handle_input(text, window, cx); }, ); register_action(editor, window, |editor, _: &HalfPageUp, window, cx| { editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx) }); register_action(editor, window, |editor, _: &PageDown, window, cx| { editor.scroll_screen(&ScrollAmount::Page(1.), window, cx) }); register_action(editor, window, |editor, _: &PageUp, window, cx| { editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx) }); register_action(editor, window, Editor::move_to_previous_word_start); register_action(editor, window, Editor::move_to_previous_subword_start); register_action(editor, window, Editor::move_to_next_word_end); register_action(editor, window, Editor::move_to_next_subword_end); register_action(editor, window, Editor::move_to_beginning_of_line); register_action(editor, window, Editor::move_to_end_of_line); register_action(editor, window, Editor::move_to_start_of_paragraph); register_action(editor, window, Editor::move_to_end_of_paragraph); register_action(editor, window, Editor::move_to_beginning); register_action(editor, window, Editor::move_to_end); register_action(editor, window, Editor::move_to_start_of_excerpt); register_action(editor, window, Editor::move_to_start_of_next_excerpt); register_action(editor, window, Editor::move_to_end_of_excerpt); register_action(editor, window, Editor::move_to_end_of_previous_excerpt); register_action(editor, window, Editor::select_up); register_action(editor, window, Editor::select_down); register_action(editor, window, Editor::select_left); register_action(editor, window, Editor::select_right); register_action(editor, window, Editor::select_to_previous_word_start); register_action(editor, window, Editor::select_to_previous_subword_start); register_action(editor, window, Editor::select_to_next_word_end); register_action(editor, window, Editor::select_to_next_subword_end); register_action(editor, window, Editor::select_to_beginning_of_line); register_action(editor, window, Editor::select_to_end_of_line); register_action(editor, window, Editor::select_to_start_of_paragraph); register_action(editor, window, Editor::select_to_end_of_paragraph); register_action(editor, window, Editor::select_to_start_of_excerpt); register_action(editor, window, Editor::select_to_start_of_next_excerpt); register_action(editor, window, Editor::select_to_end_of_excerpt); register_action(editor, window, Editor::select_to_end_of_previous_excerpt); register_action(editor, window, Editor::select_to_beginning); register_action(editor, window, Editor::select_to_end); register_action(editor, window, Editor::select_all); register_action(editor, window, |editor, action, window, cx| { editor.select_all_matches(action, window, cx).log_err(); }); register_action(editor, window, Editor::select_line); register_action(editor, window, Editor::split_selection_into_lines); register_action(editor, window, Editor::add_selection_above); register_action(editor, window, Editor::add_selection_below); register_action(editor, window, |editor, action, window, cx| { editor.select_next(action, window, cx).log_err(); }); register_action(editor, window, |editor, action, window, cx| { editor.select_previous(action, window, cx).log_err(); }); register_action(editor, window, |editor, action, window, cx| { editor.find_next_match(action, window, cx).log_err(); }); register_action(editor, window, |editor, action, window, cx| { editor.find_previous_match(action, window, cx).log_err(); }); register_action(editor, window, Editor::toggle_comments); register_action(editor, window, Editor::select_larger_syntax_node); register_action(editor, window, Editor::select_smaller_syntax_node); register_action(editor, window, Editor::select_enclosing_symbol); register_action(editor, window, Editor::move_to_enclosing_bracket); register_action(editor, window, Editor::undo_selection); register_action(editor, window, Editor::redo_selection); if !editor.read(cx).is_singleton(cx) { register_action(editor, window, Editor::expand_excerpts); register_action(editor, window, Editor::expand_excerpts_up); register_action(editor, window, Editor::expand_excerpts_down); } register_action(editor, window, Editor::go_to_diagnostic); register_action(editor, window, Editor::go_to_prev_diagnostic); register_action(editor, window, Editor::go_to_next_hunk); register_action(editor, window, Editor::go_to_prev_hunk); register_action(editor, window, |editor, action, window, cx| { editor .go_to_definition(action, window, cx) .detach_and_log_err(cx); }); register_action(editor, window, |editor, action, window, cx| { editor .go_to_definition_split(action, window, cx) .detach_and_log_err(cx); }); register_action(editor, window, |editor, action, window, cx| { editor .go_to_declaration(action, window, cx) .detach_and_log_err(cx); }); register_action(editor, window, |editor, action, window, cx| { editor .go_to_declaration_split(action, window, cx) .detach_and_log_err(cx); }); register_action(editor, window, |editor, action, window, cx| { editor .go_to_implementation(action, window, cx) .detach_and_log_err(cx); }); register_action(editor, window, |editor, action, window, cx| { editor .go_to_implementation_split(action, window, cx) .detach_and_log_err(cx); }); register_action(editor, window, |editor, action, window, cx| { editor .go_to_type_definition(action, window, cx) .detach_and_log_err(cx); }); register_action(editor, window, |editor, action, window, cx| { editor .go_to_type_definition_split(action, window, cx) .detach_and_log_err(cx); }); register_action(editor, window, Editor::open_url); register_action(editor, window, Editor::open_selected_filename); register_action(editor, window, Editor::fold); register_action(editor, window, Editor::fold_at_level); register_action(editor, window, Editor::fold_all); register_action(editor, window, Editor::fold_function_bodies); register_action(editor, window, Editor::fold_recursive); register_action(editor, window, Editor::toggle_fold); register_action(editor, window, Editor::toggle_fold_recursive); register_action(editor, window, Editor::unfold_lines); register_action(editor, window, Editor::unfold_recursive); register_action(editor, window, Editor::unfold_all); register_action(editor, window, Editor::fold_selected_ranges); register_action(editor, window, Editor::set_mark); register_action(editor, window, Editor::swap_selection_ends); register_action(editor, window, Editor::show_completions); register_action(editor, window, Editor::show_word_completions); register_action(editor, window, Editor::toggle_code_actions); register_action(editor, window, Editor::open_excerpts); register_action(editor, window, Editor::open_excerpts_in_split); register_action(editor, window, Editor::open_proposed_changes_editor); register_action(editor, window, Editor::toggle_soft_wrap); register_action(editor, window, Editor::toggle_tab_bar); register_action(editor, window, Editor::toggle_line_numbers); register_action(editor, window, Editor::toggle_relative_line_numbers); register_action(editor, window, Editor::toggle_indent_guides); register_action(editor, window, Editor::toggle_inlay_hints); register_action(editor, window, Editor::toggle_edit_predictions); if editor.read(cx).diagnostics_enabled() { register_action(editor, window, Editor::toggle_diagnostics); } if editor.read(cx).inline_diagnostics_enabled() { register_action(editor, window, Editor::toggle_inline_diagnostics); } if editor.read(cx).supports_minimap(cx) { register_action(editor, window, Editor::toggle_minimap); } register_action(editor, window, hover_popover::hover); register_action(editor, window, Editor::reveal_in_finder); register_action(editor, window, Editor::copy_path); register_action(editor, window, Editor::copy_relative_path); register_action(editor, window, Editor::copy_file_name); register_action(editor, window, Editor::copy_file_name_without_extension); register_action(editor, window, Editor::copy_highlight_json); register_action(editor, window, Editor::copy_permalink_to_line); register_action(editor, window, Editor::open_permalink_to_line); register_action(editor, window, Editor::copy_file_location); register_action(editor, window, Editor::toggle_git_blame); register_action(editor, window, Editor::toggle_git_blame_inline); register_action(editor, window, Editor::open_git_blame_commit); register_action(editor, window, Editor::toggle_selected_diff_hunks); register_action(editor, window, Editor::toggle_staged_selected_diff_hunks); register_action(editor, window, Editor::stage_and_next); register_action(editor, window, Editor::unstage_and_next); register_action(editor, window, Editor::expand_all_diff_hunks); register_action(editor, window, Editor::go_to_previous_change); register_action(editor, window, Editor::go_to_next_change); register_action(editor, window, |editor, action, window, cx| { if let Some(task) = editor.format(action, window, cx) { task.detach_and_notify_err(window, cx); } else { cx.propagate(); } }); register_action(editor, window, |editor, action, window, cx| { if let Some(task) = editor.format_selections(action, window, cx) { task.detach_and_notify_err(window, cx); } else { cx.propagate(); } }); register_action(editor, window, |editor, action, window, cx| { if let Some(task) = editor.organize_imports(action, window, cx) { task.detach_and_notify_err(window, cx); } else { cx.propagate(); } }); register_action(editor, window, Editor::restart_language_server); register_action(editor, window, Editor::stop_language_server); register_action(editor, window, Editor::show_character_palette); register_action(editor, window, |editor, action, window, cx| { if let Some(task) = editor.confirm_completion(action, window, cx) { task.detach_and_notify_err(window, cx); } else { cx.propagate(); } }); register_action(editor, window, |editor, action, window, cx| { if let Some(task) = editor.confirm_completion_replace(action, window, cx) { task.detach_and_notify_err(window, cx); } else { cx.propagate(); } }); register_action(editor, window, |editor, action, window, cx| { if let Some(task) = editor.confirm_completion_insert(action, window, cx) { task.detach_and_notify_err(window, cx); } else { cx.propagate(); } }); register_action(editor, window, |editor, action, window, cx| { if let Some(task) = editor.compose_completion(action, window, cx) { task.detach_and_notify_err(window, cx); } else { cx.propagate(); } }); register_action(editor, window, |editor, action, window, cx| { if let Some(task) = editor.confirm_code_action(action, window, cx) { task.detach_and_notify_err(window, cx); } else { cx.propagate(); } }); register_action(editor, window, |editor, action, window, cx| { if let Some(task) = editor.rename(action, window, cx) { task.detach_and_notify_err(window, cx); } else { cx.propagate(); } }); register_action(editor, window, |editor, action, window, cx| { if let Some(task) = editor.confirm_rename(action, window, cx) { task.detach_and_notify_err(window, cx); } else { cx.propagate(); } }); register_action(editor, window, |editor, action, window, cx| { if let Some(task) = editor.find_all_references(action, window, cx) { task.detach_and_log_err(cx); } else { cx.propagate(); } }); register_action(editor, window, Editor::show_signature_help); register_action(editor, window, Editor::next_edit_prediction); register_action(editor, window, Editor::previous_edit_prediction); register_action(editor, window, Editor::show_inline_completion); register_action(editor, window, Editor::context_menu_first); register_action(editor, window, Editor::context_menu_prev); register_action(editor, window, Editor::context_menu_next); register_action(editor, window, Editor::context_menu_last); register_action(editor, window, Editor::display_cursor_names); register_action(editor, window, Editor::unique_lines_case_insensitive); register_action(editor, window, Editor::unique_lines_case_sensitive); register_action(editor, window, Editor::accept_partial_inline_completion); register_action(editor, window, Editor::accept_edit_prediction); register_action(editor, window, Editor::restore_file); register_action(editor, window, Editor::git_restore); register_action(editor, window, Editor::apply_all_diff_hunks); register_action(editor, window, Editor::apply_selected_diff_hunks); register_action(editor, window, Editor::open_active_item_in_terminal); register_action(editor, window, Editor::reload_file); register_action(editor, window, Editor::spawn_nearest_task); register_action(editor, window, Editor::insert_uuid_v4); register_action(editor, window, Editor::insert_uuid_v7); register_action(editor, window, Editor::open_selections_in_multibuffer); if cx.has_flag::() { register_action(editor, window, Editor::toggle_breakpoint); register_action(editor, window, Editor::edit_log_breakpoint); register_action(editor, window, Editor::enable_breakpoint); register_action(editor, window, Editor::disable_breakpoint); } } fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) { let position_map = layout.position_map.clone(); window.on_key_event({ let editor = self.editor.clone(); move |event: &ModifiersChangedEvent, phase, window, cx| { if phase != DispatchPhase::Bubble { return; } editor.update(cx, |editor, cx| { let inlay_hint_settings = inlay_hint_settings( editor.selections.newest_anchor().head(), &editor.buffer.read(cx).snapshot(cx), cx, ); if let Some(inlay_modifiers) = inlay_hint_settings .toggle_on_modifiers_press .as_ref() .filter(|modifiers| modifiers.modified()) { editor.refresh_inlay_hints( InlayHintRefreshReason::ModifiersChanged( inlay_modifiers == &event.modifiers, ), cx, ); } if editor.hover_state.focused(window, cx) { return; } editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx); }) } }); } fn mouse_left_down( editor: &mut Editor, event: &MouseDownEvent, hovered_hunk: Option>, position_map: &PositionMap, line_numbers: &HashMap, window: &mut Window, cx: &mut Context, ) { if window.default_prevented() { return; } let text_hitbox = &position_map.text_hitbox; let gutter_hitbox = &position_map.gutter_hitbox; let mut click_count = event.click_count; let mut modifiers = event.modifiers; if let Some(hovered_hunk) = hovered_hunk { editor.toggle_single_diff_hunk(hovered_hunk, cx); cx.notify(); return; } else if gutter_hitbox.is_hovered(window) { click_count = 3; // Simulate triple-click when clicking the gutter to select lines } else if !text_hitbox.is_hovered(window) { return; } let is_singleton = editor.buffer().read(cx).is_singleton(); if click_count == 2 && !is_singleton { match EditorSettings::get_global(cx).double_click_in_multibuffer { DoubleClickInMultibuffer::Select => { // do nothing special on double click, all selection logic is below } DoubleClickInMultibuffer::Open => { if modifiers.alt { // if double click is made with alt, pretend it's a regular double click without opening and alt, // and run the selection logic. modifiers.alt = false; } else { let scroll_position_row = position_map.scroll_pixel_position.y / position_map.line_height; let display_row = (((event.position - gutter_hitbox.bounds.origin).y + position_map.scroll_pixel_position.y) / position_map.line_height) as u32; let multi_buffer_row = position_map .snapshot .display_point_to_point( DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right, ) .row; let line_offset_from_top = display_row - scroll_position_row as u32; // if double click is made without alt, open the corresponding excerp editor.open_excerpts_common( Some(JumpData::MultiBufferRow { row: MultiBufferRow(multi_buffer_row), line_offset_from_top, }), false, window, cx, ); return; } } } } let point_for_position = position_map.point_for_position(event.position); let position = point_for_position.previous_valid; if modifiers == COLUMNAR_SELECTION_MODIFIERS { editor.select( SelectPhase::BeginColumnar { position, reset: true, goal_column: point_for_position.exact_unclipped.column(), }, window, cx, ); } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary() { editor.select( SelectPhase::Extend { position, click_count, }, window, cx, ); } else { let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier; let multi_cursor_modifier = match multi_cursor_setting { MultiCursorModifier::Alt => modifiers.alt, MultiCursorModifier::CmdOrCtrl => modifiers.secondary(), }; editor.select( SelectPhase::Begin { position, add: multi_cursor_modifier, click_count, }, window, cx, ); } cx.stop_propagation(); if !is_singleton { let display_row = (((event.position - gutter_hitbox.bounds.origin).y + position_map.scroll_pixel_position.y) / position_map.line_height) as u32; let multi_buffer_row = position_map .snapshot .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right) .row; if line_numbers .get(&MultiBufferRow(multi_buffer_row)) .and_then(|line_number| line_number.hitbox.as_ref()) .is_some_and(|hitbox| hitbox.contains(&event.position)) { let scroll_position_row = position_map.scroll_pixel_position.y / position_map.line_height; let line_offset_from_top = display_row - scroll_position_row as u32; editor.open_excerpts_common( Some(JumpData::MultiBufferRow { row: MultiBufferRow(multi_buffer_row), line_offset_from_top, }), modifiers.alt, window, cx, ); cx.stop_propagation(); } } } fn mouse_right_down( editor: &mut Editor, event: &MouseDownEvent, position_map: &PositionMap, window: &mut Window, cx: &mut Context, ) { if position_map.gutter_hitbox.is_hovered(window) { let gutter_right_padding = editor.gutter_dimensions.right_padding; let hitbox = &position_map.gutter_hitbox; if event.position.x <= hitbox.bounds.right() - gutter_right_padding { let point_for_position = position_map.point_for_position(event.position); editor.set_breakpoint_context_menu( point_for_position.previous_valid.row(), None, event.position, window, cx, ); } return; } if !position_map.text_hitbox.is_hovered(window) { return; } let point_for_position = position_map.point_for_position(event.position); mouse_context_menu::deploy_context_menu( editor, Some(event.position), point_for_position.previous_valid, window, cx, ); cx.stop_propagation(); } fn mouse_middle_down( editor: &mut Editor, event: &MouseDownEvent, position_map: &PositionMap, window: &mut Window, cx: &mut Context, ) { if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() { return; } let point_for_position = position_map.point_for_position(event.position); let position = point_for_position.previous_valid; editor.select( SelectPhase::BeginColumnar { position, reset: true, goal_column: point_for_position.exact_unclipped.column(), }, window, cx, ); } fn mouse_up( editor: &mut Editor, event: &MouseUpEvent, position_map: &PositionMap, window: &mut Window, cx: &mut Context, ) { let text_hitbox = &position_map.text_hitbox; let end_selection = editor.has_pending_selection(); let pending_nonempty_selections = editor.has_pending_nonempty_selection(); if end_selection { editor.select(SelectPhase::End, window, cx); } if end_selection && pending_nonempty_selections { cx.stop_propagation(); } else if cfg!(any(target_os = "linux", target_os = "freebsd")) && event.button == MouseButton::Middle { if !text_hitbox.is_hovered(window) || editor.read_only(cx) { return; } #[cfg(any(target_os = "linux", target_os = "freebsd"))] if EditorSettings::get_global(cx).middle_click_paste { if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) { let point_for_position = position_map.point_for_position(event.position); let position = point_for_position.previous_valid; editor.select( SelectPhase::Begin { position, add: false, click_count: 1, }, window, cx, ); editor.insert(&text, window, cx); } cx.stop_propagation() } } } fn click( editor: &mut Editor, event: &ClickEvent, position_map: &PositionMap, window: &mut Window, cx: &mut Context, ) { let text_hitbox = &position_map.text_hitbox; let pending_nonempty_selections = editor.has_pending_nonempty_selection(); let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier; let multi_cursor_modifier = match multi_cursor_setting { MultiCursorModifier::Alt => event.modifiers().secondary(), MultiCursorModifier::CmdOrCtrl => event.modifiers().alt, }; if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) { let point = position_map.point_for_position(event.up.position); editor.handle_click_hovered_link(point, event.modifiers(), window, cx); cx.stop_propagation(); } } fn mouse_dragged( editor: &mut Editor, event: &MouseMoveEvent, position_map: &PositionMap, window: &mut Window, cx: &mut Context, ) { if !editor.has_pending_selection() { return; } let text_bounds = position_map.text_hitbox.bounds; let point_for_position = position_map.point_for_position(event.position); let mut scroll_delta = gpui::Point::::default(); let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0); let top = text_bounds.origin.y + vertical_margin; let bottom = text_bounds.bottom_left().y - vertical_margin; if event.position.y < top { scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y); } if event.position.y > bottom { scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom); } // We need horizontal width of text let style = editor.style.clone().unwrap_or_default(); let font_id = window.text_system().resolve_font(&style.text.font()); let font_size = style.text.font_size.to_pixels(window.rem_size()); let em_width = window.text_system().em_width(font_id, font_size).unwrap(); let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin; let scroll_space: Pixels = scroll_margin_x * em_width; let left = text_bounds.origin.x + scroll_space; let right = text_bounds.top_right().x - scroll_space; if event.position.x < left { scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x); } if event.position.x > right { scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right); } editor.select( SelectPhase::Update { position: point_for_position.previous_valid, goal_column: point_for_position.exact_unclipped.column(), scroll_delta, }, window, cx, ); } fn mouse_moved( editor: &mut Editor, event: &MouseMoveEvent, position_map: &PositionMap, window: &mut Window, cx: &mut Context, ) { let text_hitbox = &position_map.text_hitbox; let gutter_hitbox = &position_map.gutter_hitbox; let modifiers = event.modifiers; let gutter_hovered = gutter_hitbox.is_hovered(window); editor.set_gutter_hovered(gutter_hovered, cx); editor.mouse_cursor_hidden = false; if gutter_hovered { let new_point = position_map .point_for_position(event.position) .previous_valid; let buffer_anchor = position_map .snapshot .display_point_to_anchor(new_point, Bias::Left); if let Some((buffer_snapshot, file)) = position_map .snapshot .buffer_snapshot .buffer_for_excerpt(buffer_anchor.excerpt_id) .and_then(|buffer| buffer.file().map(|file| (buffer, file))) { let was_hovered = editor.gutter_breakpoint_indicator.0.is_some(); let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot); let is_visible = editor .gutter_breakpoint_indicator .0 .map_or(false, |indicator| indicator.is_active); let has_existing_breakpoint = editor.breakpoint_store.as_ref().map_or(false, |store| { let Some(project) = &editor.project else { return false; }; let Some(abs_path) = project.read(cx).absolute_path( &ProjectPath { path: file.path().clone(), worktree_id: file.worktree_id(cx), }, cx, ) else { return false; }; store .read(cx) .breakpoint_at_row(&abs_path, as_point.row, cx) .is_some() }); editor.gutter_breakpoint_indicator.0 = Some(PhantomBreakpointIndicator { display_row: new_point.row(), is_active: is_visible, collides_with_existing_breakpoint: has_existing_breakpoint, }); editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| { cx.spawn(async move |this, cx| { if !was_hovered { cx.background_executor() .timer(Duration::from_millis(200)) .await; } this.update(cx, |this, cx| { if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut() { indicator.is_active = true; } cx.notify(); }) .ok(); }) }); } else { editor.gutter_breakpoint_indicator = (None, None); } } else { editor.gutter_breakpoint_indicator = (None, None); } cx.notify(); // Don't trigger hover popover if mouse is hovering over context menu if text_hitbox.is_hovered(window) { let point_for_position = position_map.point_for_position(event.position); editor.update_hovered_link( point_for_position, &position_map.snapshot, modifiers, window, cx, ); if let Some(point) = point_for_position.as_valid() { let anchor = position_map .snapshot .buffer_snapshot .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left)); hover_at(editor, Some(anchor), window, cx); Self::update_visible_cursor(editor, point, position_map, window, cx); } else { hover_at(editor, None, window, cx); } } else { editor.hide_hovered_link(cx); hover_at(editor, None, window, cx); } } fn update_visible_cursor( editor: &mut Editor, point: DisplayPoint, position_map: &PositionMap, window: &mut Window, cx: &mut Context, ) { let snapshot = &position_map.snapshot; let Some(hub) = editor.collaboration_hub() else { return; }; let start = snapshot.display_snapshot.clip_point( DisplayPoint::new(point.row(), point.column().saturating_sub(1)), Bias::Left, ); let end = snapshot.display_snapshot.clip_point( DisplayPoint::new( point.row(), (point.column() + 1).min(snapshot.line_len(point.row())), ), Bias::Right, ); let range = snapshot .buffer_snapshot .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left) ..snapshot .buffer_snapshot .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right); let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else { return; }; let key = crate::HoveredCursor { replica_id: selection.replica_id, selection_id: selection.selection.id, }; editor.hovered_cursors.insert( key.clone(), cx.spawn_in(window, async move |editor, cx| { cx.background_executor().timer(CURSORS_VISIBLE_FOR).await; editor .update(cx, |editor, cx| { editor.hovered_cursors.remove(&key); cx.notify(); }) .ok(); }), ); cx.notify() } fn layout_selections( &self, start_anchor: Anchor, end_anchor: Anchor, local_selections: &[Selection], snapshot: &EditorSnapshot, start_row: DisplayRow, end_row: DisplayRow, window: &mut Window, cx: &mut App, ) -> ( Vec<(PlayerColor, Vec)>, BTreeMap, Option, ) { let mut selections: Vec<(PlayerColor, Vec)> = Vec::new(); let mut active_rows = BTreeMap::new(); let mut newest_selection_head = None; let Some(editor_with_selections) = self.editor_with_selections(cx) else { return (selections, active_rows, newest_selection_head); }; editor_with_selections.update(cx, |editor, cx| { if editor.show_local_selections { let mut layouts = Vec::new(); let newest = editor.selections.newest(cx); for selection in local_selections.iter().cloned() { let is_empty = selection.start == selection.end; let is_newest = selection == newest; let layout = SelectionLayout::new( selection, editor.selections.line_mode, editor.cursor_shape, &snapshot.display_snapshot, is_newest, editor.leader_id.is_none(), None, ); if is_newest { newest_selection_head = Some(layout.head); } for row in cmp::max(layout.active_rows.start.0, start_row.0) ..=cmp::min(layout.active_rows.end.0, end_row.0) { let contains_non_empty_selection = active_rows .entry(DisplayRow(row)) .or_insert_with(LineHighlightSpec::default); contains_non_empty_selection.selection |= !is_empty; } layouts.push(layout); } let player = editor.current_user_player_color(cx); selections.push((player, layouts)); } if let Some(collaboration_hub) = &editor.collaboration_hub { // When following someone, render the local selections in their color. if let Some(leader_id) = editor.leader_id { match leader_id { CollaboratorId::PeerId(peer_id) => { if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&peer_id) { if let Some(participant_index) = collaboration_hub .user_participant_indices(cx) .get(&collaborator.user_id) { if let Some((local_selection_style, _)) = selections.first_mut() { *local_selection_style = cx .theme() .players() .color_for_participant(participant_index.0); } } } } CollaboratorId::Agent => { if let Some((local_selection_style, _)) = selections.first_mut() { *local_selection_style = cx.theme().players().agent(); } } } } let mut remote_selections = HashMap::default(); for selection in snapshot.remote_selections_in_range( &(start_anchor..end_anchor), collaboration_hub.as_ref(), cx, ) { // Don't re-render the leader's selections, since the local selections // match theirs. if Some(selection.collaborator_id) == editor.leader_id { continue; } let key = HoveredCursor { replica_id: selection.replica_id, selection_id: selection.selection.id, }; let is_shown = editor.show_cursor_names || editor.hovered_cursors.contains_key(&key); remote_selections .entry(selection.replica_id) .or_insert((selection.color, Vec::new())) .1 .push(SelectionLayout::new( selection.selection, selection.line_mode, selection.cursor_shape, &snapshot.display_snapshot, false, false, if is_shown { selection.user_name } else { None }, )); } selections.extend(remote_selections.into_values()); } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused { let layouts = snapshot .buffer_snapshot .selections_in_range(&(start_anchor..end_anchor), true) .map(move |(_, line_mode, cursor_shape, selection)| { SelectionLayout::new( selection, line_mode, cursor_shape, &snapshot.display_snapshot, false, false, None, ) }) .collect::>(); let player = editor.current_user_player_color(cx); selections.push((player, layouts)); } }); (selections, active_rows, newest_selection_head) } fn collect_cursors( &self, snapshot: &EditorSnapshot, cx: &mut App, ) -> Vec<(DisplayPoint, Hsla)> { let editor = self.editor.read(cx); let mut cursors = Vec::new(); let mut skip_local = false; let mut add_cursor = |anchor: Anchor, color| { cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color)); }; // Remote cursors if let Some(collaboration_hub) = &editor.collaboration_hub { for remote_selection in snapshot.remote_selections_in_range( &(Anchor::min()..Anchor::max()), collaboration_hub.deref(), cx, ) { add_cursor( remote_selection.selection.head(), remote_selection.color.cursor, ); if Some(remote_selection.collaborator_id) == editor.leader_id { skip_local = true; } } } // Local cursors if !skip_local { let color = cx.theme().players().local().cursor; editor.selections.disjoint.iter().for_each(|selection| { add_cursor(selection.head(), color); }); if let Some(ref selection) = editor.selections.pending_anchor() { add_cursor(selection.head(), color); } } cursors } fn layout_visible_cursors( &self, snapshot: &EditorSnapshot, selections: &[(PlayerColor, Vec)], row_block_types: &HashMap, visible_display_row_range: Range, line_layouts: &[LineWithInvisibles], text_hitbox: &Hitbox, content_origin: gpui::Point, scroll_position: gpui::Point, scroll_pixel_position: gpui::Point, line_height: Pixels, em_width: Pixels, em_advance: Pixels, autoscroll_containing_element: bool, window: &mut Window, cx: &mut App, ) -> Vec { let mut autoscroll_bounds = None; let cursor_layouts = self.editor.update(cx, |editor, cx| { let mut cursors = Vec::new(); let show_local_cursors = editor.show_local_cursors(window, cx); for (player_color, selections) in selections { for selection in selections { let cursor_position = selection.head; let in_range = visible_display_row_range.contains(&cursor_position.row()); if (selection.is_local && !show_local_cursors) || !in_range || row_block_types.get(&cursor_position.row()) == Some(&true) { continue; } let cursor_row_layout = &line_layouts [cursor_position.row().minus(visible_display_row_range.start) as usize]; let cursor_column = cursor_position.column() as usize; let cursor_character_x = cursor_row_layout.x_for_index(cursor_column); let mut block_width = cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x; if block_width == Pixels::ZERO { block_width = em_advance; } let block_text = if let CursorShape::Block = selection.cursor_shape { snapshot .grapheme_at(cursor_position) .or_else(|| { if cursor_column == 0 { snapshot.placeholder_text().and_then(|s| { s.graphemes(true).next().map(|s| s.to_string().into()) }) } else { None } }) .map(|text| { let len = text.len(); let font = cursor_row_layout .font_id_for_index(cursor_column) .and_then(|cursor_font_id| { window.text_system().get_font_for_id(cursor_font_id) }) .unwrap_or(self.style.text.font()); // Invert the text color for the block cursor. Ensure that the text // color is opaque enough to be visible against the background color. // // 0.75 is an arbitrary threshold to determine if the background color is // opaque enough to use as a text color. // // TODO: In the future we should ensure themes have a `text_inverse` color. let color = if cx.theme().colors().editor_background.a < 0.75 { match cx.theme().appearance { Appearance::Dark => Hsla::black(), Appearance::Light => Hsla::white(), } } else { cx.theme().colors().editor_background }; window.text_system().shape_line( text, cursor_row_layout.font_size, &[TextRun { len, font, color, background_color: None, strikethrough: None, underline: None, }], ) }) } else { None }; let x = cursor_character_x - scroll_pixel_position.x; let y = (cursor_position.row().as_f32() - scroll_pixel_position.y / line_height) * line_height; if selection.is_newest { editor.pixel_position_of_newest_cursor = Some(point( text_hitbox.origin.x + x + block_width / 2., text_hitbox.origin.y + y + line_height / 2., )); if autoscroll_containing_element { let top = text_hitbox.origin.y + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.) * line_height; let left = text_hitbox.origin.x + (cursor_position.column() as f32 - scroll_position.x - 3.) .max(0.) * em_width; let bottom = text_hitbox.origin.y + (cursor_position.row().as_f32() - scroll_position.y + 4.) * line_height; let right = text_hitbox.origin.x + (cursor_position.column() as f32 - scroll_position.x + 4.) * em_width; autoscroll_bounds = Some(Bounds::from_corners(point(left, top), point(right, bottom))) } } let mut cursor = CursorLayout { color: player_color.cursor, block_width, origin: point(x, y), line_height, shape: selection.cursor_shape, block_text, cursor_name: None, }; let cursor_name = selection.user_name.clone().map(|name| CursorName { string: name, color: self.style.background, is_top_row: cursor_position.row().0 == 0, }); cursor.layout(content_origin, cursor_name, window, cx); cursors.push(cursor); } } cursors }); if let Some(bounds) = autoscroll_bounds { window.request_autoscroll(bounds); } cursor_layouts } fn layout_scrollbars( &self, snapshot: &EditorSnapshot, scrollbar_layout_information: &ScrollbarLayoutInformation, content_offset: gpui::Point, scroll_position: gpui::Point, non_visible_cursors: bool, right_margin: Pixels, editor_width: Pixels, window: &mut Window, cx: &mut App, ) -> Option { let show_scrollbars = self.editor.read(cx).show_scrollbars; if (!show_scrollbars.horizontal && !show_scrollbars.vertical) || self.style.scrollbar_width.is_zero() { return None; } // If a drag took place after we started dragging the scrollbar, // cancel the scrollbar drag. if cx.has_active_drag() { self.editor.update(cx, |editor, cx| { editor.scroll_manager.reset_scrollbar_state(cx) }); } let editor_settings = EditorSettings::get_global(cx); let scrollbar_settings = editor_settings.scrollbar; let show_scrollbars = match scrollbar_settings.show { ShowScrollbar::Auto => { let editor = self.editor.read(cx); let is_singleton = editor.is_singleton(cx); // Git (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks()) || // Buffer Search Results (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::()) || // Selected Text Occurrences (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::()) || // Selected Symbol Occurrences (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::() || editor.has_background_highlights::())) || // Diagnostics (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics()) || // Cursors out of sight non_visible_cursors || // Scrollmanager editor.scroll_manager.scrollbars_visible() } ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(), ShowScrollbar::Always => true, ShowScrollbar::Never => return None, }; // The horizontal scrollbar is usually slightly offset to align nicely with // indent guides. However, this offset is not needed if indent guides are // disabled for the current editor. let content_offset = self .editor .read(cx) .show_indent_guides .is_none_or(|should_show| should_show) .then_some(content_offset) .unwrap_or_default(); Some(EditorScrollbars::from_scrollbar_axes( ScrollbarAxes { horizontal: scrollbar_settings.axes.horizontal && self.editor.read(cx).show_scrollbars.horizontal, vertical: scrollbar_settings.axes.vertical && self.editor.read(cx).show_scrollbars.vertical, }, scrollbar_layout_information, content_offset, scroll_position, self.style.scrollbar_width, right_margin, editor_width, show_scrollbars, self.editor.read(cx).scroll_manager.active_scrollbar_state(), window, )) } fn layout_minimap( &self, snapshot: &EditorSnapshot, minimap_width: Pixels, scroll_position: gpui::Point, scrollbar_layout_information: &ScrollbarLayoutInformation, scrollbar_layout: Option<&EditorScrollbars>, window: &mut Window, cx: &mut App, ) -> Option { let minimap_editor = self.editor.read(cx).minimap().cloned()?; let minimap_settings = EditorSettings::get_global(cx).minimap; if !snapshot.mode.is_full() || minimap_width.is_zero() || matches!( minimap_settings.show, ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible) ) { return None; } const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical; let ScrollbarLayoutInformation { editor_bounds, scroll_range, glyph_grid_cell, } = scrollbar_layout_information; let line_height = glyph_grid_cell.height; let scroll_position = scroll_position.along(MINIMAP_AXIS); let top_right_anchor = scrollbar_layout .and_then(|layout| layout.vertical.as_ref()) .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin) .unwrap_or_else(|| editor_bounds.top_right()); let thumb_state = self .editor .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state()); let show_thumb = match minimap_settings.thumb { MinimapThumb::Always => true, MinimapThumb::Hover => thumb_state.is_some(), }; let minimap_bounds = Bounds::from_corner_and_size( Corner::TopRight, top_right_anchor, size(minimap_width, editor_bounds.size.height), ); let minimap_line_height = self.get_minimap_line_height( minimap_editor .read(cx) .text_style_refinement .as_ref() .and_then(|refinement| refinement.font_size) .unwrap_or(MINIMAP_FONT_SIZE), window, cx, ); let minimap_height = minimap_bounds.size.height; let visible_editor_lines = editor_bounds.size.height / line_height; let total_editor_lines = scroll_range.height / line_height; let minimap_lines = minimap_height / minimap_line_height; let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset( total_editor_lines, visible_editor_lines, minimap_lines, scroll_position, ); let layout = ScrollbarLayout::for_minimap( window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal), visible_editor_lines, total_editor_lines, minimap_line_height, scroll_position, minimap_scroll_top, show_thumb, ) .with_thumb_state(thumb_state); minimap_editor.update(cx, |editor, cx| { editor.set_scroll_position(point(0., minimap_scroll_top), window, cx) }); // Required for the drop shadow to be visible const PADDING_OFFSET: Pixels = px(4.); let mut minimap = div() .size_full() .shadow_sm() .px(PADDING_OFFSET) .child(minimap_editor) .into_any_element(); let extended_bounds = minimap_bounds.extend(Edges { right: PADDING_OFFSET, left: PADDING_OFFSET, ..Default::default() }); minimap.layout_as_root(extended_bounds.size.into(), window, cx); window.with_absolute_element_offset(extended_bounds.origin, |window| { minimap.prepaint(window, cx) }); Some(MinimapLayout { minimap, thumb_layout: layout, thumb_border_style: minimap_settings.thumb_border, minimap_line_height, minimap_scroll_top, max_scroll_top: total_editor_lines, }) } fn get_minimap_line_height( &self, font_size: AbsoluteLength, window: &mut Window, cx: &mut App, ) -> Pixels { let rem_size = self.rem_size(cx).unwrap_or(window.rem_size()); let mut text_style = self.style.text.clone(); text_style.font_size = font_size; text_style.line_height_in_pixels(rem_size) } fn prepaint_crease_toggles( &self, crease_toggles: &mut [Option], line_height: Pixels, gutter_dimensions: &GutterDimensions, gutter_settings: crate::editor_settings::Gutter, scroll_pixel_position: gpui::Point, gutter_hitbox: &Hitbox, window: &mut Window, cx: &mut App, ) { for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() { if let Some(crease_toggle) = crease_toggle { debug_assert!(gutter_settings.folds); let available_space = size( AvailableSpace::MinContent, AvailableSpace::Definite(line_height * 0.55), ); let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx); let position = point( gutter_dimensions.width - gutter_dimensions.right_padding, ix as f32 * line_height - (scroll_pixel_position.y % line_height), ); let centering_offset = point( (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2., (line_height - crease_toggle_size.height) / 2., ); let origin = gutter_hitbox.origin + position + centering_offset; crease_toggle.prepaint_as_root(origin, available_space, window, cx); } } } fn prepaint_expand_toggles( &self, expand_toggles: &mut [Option<(AnyElement, gpui::Point)>], window: &mut Window, cx: &mut App, ) { for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() { let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent); expand_toggle.layout_as_root(available_space, window, cx); expand_toggle.prepaint_as_root(*origin, available_space, window, cx); } } fn prepaint_crease_trailers( &self, trailers: Vec>, lines: &[LineWithInvisibles], line_height: Pixels, content_origin: gpui::Point, scroll_pixel_position: gpui::Point, em_width: Pixels, window: &mut Window, cx: &mut App, ) -> Vec> { trailers .into_iter() .enumerate() .map(|(ix, element)| { let mut element = element?; let available_space = size( AvailableSpace::MinContent, AvailableSpace::Definite(line_height), ); let size = element.layout_as_root(available_space, window, cx); let line = &lines[ix]; let padding = if line.width == Pixels::ZERO { Pixels::ZERO } else { 4. * em_width }; let position = point( scroll_pixel_position.x + line.width + padding, ix as f32 * line_height - (scroll_pixel_position.y % line_height), ); let centering_offset = point(px(0.), (line_height - size.height) / 2.); let origin = content_origin + position + centering_offset; element.prepaint_as_root(origin, available_space, window, cx); Some(CreaseTrailerLayout { element, bounds: Bounds::new(origin, size), }) }) .collect() } // Folds contained in a hunk are ignored apart from shrinking visual size // If a fold contains any hunks then that fold line is marked as modified fn layout_gutter_diff_hunks( &self, line_height: Pixels, gutter_hitbox: &Hitbox, display_rows: Range, snapshot: &EditorSnapshot, window: &mut Window, cx: &mut App, ) -> Vec<(DisplayDiffHunk, Option)> { let folded_buffers = self.editor.read(cx).folded_buffers(cx); let mut display_hunks = snapshot .display_diff_hunks_for_rows(display_rows, folded_buffers) .map(|hunk| (hunk, None)) .collect::>(); let git_gutter_setting = ProjectSettings::get_global(cx) .git .git_gutter .unwrap_or_default(); if let GitGutterSetting::TrackedFiles = git_gutter_setting { for (hunk, hitbox) in &mut display_hunks { if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) { let hunk_bounds = Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk); *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse)); } } } display_hunks } fn layout_inline_diagnostics( &self, line_layouts: &[LineWithInvisibles], crease_trailers: &[Option], row_block_types: &HashMap, content_origin: gpui::Point, scroll_pixel_position: gpui::Point, inline_completion_popover_origin: Option>, start_row: DisplayRow, end_row: DisplayRow, line_height: Pixels, em_width: Pixels, style: &EditorStyle, window: &mut Window, cx: &mut App, ) -> HashMap { if self.editor.read(cx).mode().is_minimap() { return HashMap::default(); } let max_severity = match ProjectSettings::get_global(cx) .diagnostics .inline .max_severity .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity) .into_lsp() { Some(max_severity) => max_severity, None => return HashMap::default(), }; let active_diagnostics_group = if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics { Some(group.group_id) } else { None }; let diagnostics_by_rows = self.editor.update(cx, |editor, cx| { let snapshot = editor.snapshot(window, cx); editor .inline_diagnostics .iter() .filter(|(_, diagnostic)| diagnostic.severity <= max_severity) .filter(|(_, diagnostic)| match active_diagnostics_group { Some(active_diagnostics_group) => { // Active diagnostics are all shown in the editor already, no need to display them inline diagnostic.group_id != active_diagnostics_group } None => true, }) .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone())) .skip_while(|(point, _)| point.row() < start_row) .take_while(|(point, _)| point.row() < end_row) .filter(|(point, _)| !row_block_types.contains_key(&point.row())) .fold(HashMap::default(), |mut acc, (point, diagnostic)| { acc.entry(point.row()) .or_insert_with(Vec::new) .push(diagnostic); acc }) }); if diagnostics_by_rows.is_empty() { return HashMap::default(); } let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev { &lsp::DiagnosticSeverity::ERROR => Color::Error, &lsp::DiagnosticSeverity::WARNING => Color::Warning, &lsp::DiagnosticSeverity::INFORMATION => Color::Info, &lsp::DiagnosticSeverity::HINT => Color::Hint, _ => Color::Error, }; let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width; let min_x = ProjectSettings::get_global(cx) .diagnostics .inline .min_column as f32 * em_width; let mut elements = HashMap::default(); for (row, mut diagnostics) in diagnostics_by_rows { diagnostics.sort_by_key(|diagnostic| { ( diagnostic.severity, std::cmp::Reverse(diagnostic.is_primary), diagnostic.start.row, diagnostic.start.column, ) }); let Some(diagnostic_to_render) = diagnostics .iter() .find(|diagnostic| diagnostic.is_primary) .or_else(|| diagnostics.first()) else { continue; }; let pos_y = content_origin.y + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height); let window_ix = row.0.saturating_sub(start_row.0) as usize; let pos_x = { let crease_trailer_layout = &crease_trailers[window_ix]; let line_layout = &line_layouts[window_ix]; let line_end = if let Some(crease_trailer) = crease_trailer_layout { crease_trailer.bounds.right() } else { content_origin.x - scroll_pixel_position.x + line_layout.width }; let padded_line = line_end + padding; let min_start = content_origin.x - scroll_pixel_position.x + min_x; cmp::max(padded_line, min_start) }; let behind_inline_completion_popover = inline_completion_popover_origin .as_ref() .map_or(false, |inline_completion_popover_origin| { (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y) }); let opacity = if behind_inline_completion_popover { 0.5 } else { 1.0 }; let mut element = h_flex() .id(("diagnostic", row.0)) .h(line_height) .w_full() .px_1() .rounded_xs() .opacity(opacity) .bg(severity_to_color(&diagnostic_to_render.severity) .color(cx) .opacity(0.05)) .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx)) .text_sm() .font_family(style.text.font().family) .child(diagnostic_to_render.message.clone()) .into_any(); element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx); elements.insert(row, element); } elements } fn layout_inline_code_actions( &self, display_point: DisplayPoint, content_origin: gpui::Point, scroll_pixel_position: gpui::Point, line_height: Pixels, snapshot: &EditorSnapshot, window: &mut Window, cx: &mut App, ) -> Option { if !snapshot .show_code_actions .unwrap_or(EditorSettings::get_global(cx).inline_code_actions) { return None; } let icon_size = ui::IconSize::XSmall; let mut button = self.editor.update(cx, |editor, cx| { editor.available_code_actions.as_ref()?; let active = editor .context_menu .borrow() .as_ref() .and_then(|menu| { if let crate::CodeContextMenu::CodeActions(CodeActionsMenu { deployed_from, .. }) = menu { deployed_from.as_ref() } else { None } }) .map_or(false, |source| { matches!(source, CodeActionSource::Indicator(..)) }); Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx)) })?; let buffer_point = display_point.to_point(&snapshot.display_snapshot); // do not show code action for folded line if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) { return None; } // do not show code action for blank line with cursor let line_indent = snapshot .display_snapshot .buffer_snapshot .line_indent_for_row(MultiBufferRow(buffer_point.row)); if line_indent.is_line_blank() { return None; } const INLINE_SLOT_CHAR_LIMIT: u32 = 4; const MAX_ALTERNATE_DISTANCE: u32 = 8; let excerpt_id = snapshot .display_snapshot .buffer_snapshot .excerpt_containing(buffer_point..buffer_point) .map(|excerpt| excerpt.id()); let is_valid_row = |row_candidate: u32| -> bool { // move to other row if folded row if snapshot.is_line_folded(MultiBufferRow(row_candidate)) { return false; } if buffer_point.row == row_candidate { // move to other row if cursor is in slot if buffer_point.column < INLINE_SLOT_CHAR_LIMIT { return false; } } else { let candidate_point = MultiBufferPoint { row: row_candidate, column: 0, }; let candidate_excerpt_id = snapshot .display_snapshot .buffer_snapshot .excerpt_containing(candidate_point..candidate_point) .map(|excerpt| excerpt.id()); // move to other row if different excerpt if excerpt_id != candidate_excerpt_id { return false; } } let line_indent = snapshot .display_snapshot .buffer_snapshot .line_indent_for_row(MultiBufferRow(row_candidate)); // use this row if it's blank if line_indent.is_line_blank() { true } else { // use this row if code starts after slot let indent_size = snapshot .display_snapshot .buffer_snapshot .indent_size_for_line(MultiBufferRow(row_candidate)); indent_size.len >= INLINE_SLOT_CHAR_LIMIT } }; let new_buffer_row = if is_valid_row(buffer_point.row) { Some(buffer_point.row) } else { let max_row = snapshot.display_snapshot.buffer_snapshot.max_point().row; (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| { let row_above = buffer_point.row.saturating_sub(offset); let row_below = buffer_point.row + offset; if row_above != buffer_point.row && is_valid_row(row_above) { Some(row_above) } else if row_below <= max_row && is_valid_row(row_below) { Some(row_below) } else { None } }) }?; let new_display_row = snapshot .display_snapshot .point_to_display_point( Point { row: new_buffer_row, column: buffer_point.column, }, text::Bias::Left, ) .row(); let start_y = content_origin.y + ((new_display_row.as_f32() - (scroll_pixel_position.y / line_height)) * line_height) + (line_height / 2.0) - (icon_size.square(window, cx) / 2.); let start_x = content_origin.x - scroll_pixel_position.x + (window.rem_size() * 0.1); let absolute_offset = gpui::point(start_x, start_y); button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx); button.prepaint_as_root( absolute_offset, gpui::AvailableSpace::min_size(), window, cx, ); Some(button) } fn layout_inline_blame( &self, display_row: DisplayRow, row_info: &RowInfo, line_layout: &LineWithInvisibles, crease_trailer: Option<&CreaseTrailerLayout>, em_width: Pixels, content_origin: gpui::Point, scroll_pixel_position: gpui::Point, line_height: Pixels, text_hitbox: &Hitbox, window: &mut Window, cx: &mut App, ) -> Option { if !self .editor .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx)) { return None; } let editor = self.editor.read(cx); let blame = editor.blame.clone()?; let padding = { const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.; const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.; let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS; if let Some(inline_completion) = editor.active_inline_completion.as_ref() { match &inline_completion.completion { InlineCompletion::Edit { display_mode: EditDisplayMode::TabAccept, .. } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS, _ => {} } } padding * em_width }; let blame_entry = blame .update(cx, |blame, cx| { blame.blame_for_rows(&[*row_info], cx).next() }) .flatten()?; let mut element = render_inline_blame_entry(blame_entry.clone(), &self.style, cx)?; let start_y = content_origin.y + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height); let start_x = { let line_end = if let Some(crease_trailer) = crease_trailer { crease_trailer.bounds.right() } else { content_origin.x - scroll_pixel_position.x + line_layout.width }; let padded_line_end = line_end + padding; let min_column_in_pixels = ProjectSettings::get_global(cx) .git .inline_blame .and_then(|settings| settings.min_column) .map(|col| self.column_pixels(col as usize, window, cx)) .unwrap_or(px(0.)); let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels; cmp::max(padded_line_end, min_start) }; let absolute_offset = point(start_x, start_y); let size = element.layout_as_root(AvailableSpace::min_size(), window, cx); let bounds = Bounds::new(absolute_offset, size); self.layout_blame_entry_popover( bounds, blame_entry, blame, line_height, text_hitbox, window, cx, ); element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx); Some(element) } fn layout_blame_entry_popover( &self, parent_bounds: Bounds, blame_entry: BlameEntry, blame: Entity, line_height: Pixels, text_hitbox: &Hitbox, window: &mut Window, cx: &mut App, ) { let mouse_position = window.mouse_position(); let mouse_over_inline_blame = parent_bounds.contains(&mouse_position); let mouse_over_popover = self.editor.read_with(cx, |editor, _| { editor .inline_blame_popover .as_ref() .and_then(|state| state.popover_bounds) .map_or(false, |bounds| bounds.contains(&mouse_position)) }); self.editor.update(cx, |editor, cx| { if mouse_over_inline_blame || mouse_over_popover { editor.show_blame_popover(&blame_entry, mouse_position, cx); } else { editor.hide_blame_popover(cx); } }); let should_draw = self.editor.read_with(cx, |editor, _| { editor .inline_blame_popover .as_ref() .map_or(false, |state| state.show_task.is_none()) }); if should_draw { let maybe_element = self.editor.update(cx, |editor, cx| { editor .workspace() .map(|workspace| workspace.downgrade()) .zip( editor .inline_blame_popover .as_ref() .map(|p| p.popover_state.clone()), ) .and_then(|(workspace, popover_state)| { render_blame_entry_popover( blame_entry, popover_state.scroll_handle, popover_state.commit_message, popover_state.markdown, workspace, &blame, window, cx, ) }) }); if let Some(mut element) = maybe_element { let size = element.layout_as_root(AvailableSpace::min_size(), window, cx); let origin = self.editor.read_with(cx, |editor, _| { let target_point = editor .inline_blame_popover .as_ref() .map_or(mouse_position, |state| state.position); let overall_height = size.height + HOVER_POPOVER_GAP; let popover_origin = if target_point.y > overall_height { point(target_point.x, target_point.y - size.height) } else { point( target_point.x, target_point.y + line_height + HOVER_POPOVER_GAP, ) }; let horizontal_offset = (text_hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (popover_origin.x + size.width)) .min(Pixels::ZERO); point(popover_origin.x + horizontal_offset, popover_origin.y) }); let popover_bounds = Bounds::new(origin, size); self.editor.update(cx, |editor, _| { if let Some(state) = &mut editor.inline_blame_popover { state.popover_bounds = Some(popover_bounds); } }); window.defer_draw(element, origin, 2); } } } fn layout_blame_entries( &self, buffer_rows: &[RowInfo], em_width: Pixels, scroll_position: gpui::Point, line_height: Pixels, gutter_hitbox: &Hitbox, max_width: Option, window: &mut Window, cx: &mut App, ) -> Option> { if !self .editor .update(cx, |editor, cx| editor.render_git_blame_gutter(cx)) { return None; } let blame = self.editor.read(cx).blame.clone()?; let workspace = self.editor.read(cx).workspace()?; let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| { blame.blame_for_rows(buffer_rows, cx).collect() }); let width = if let Some(max_width) = max_width { AvailableSpace::Definite(max_width) } else { AvailableSpace::MaxContent }; let scroll_top = scroll_position.y * line_height; let start_x = em_width; let mut last_used_color: Option<(PlayerColor, Oid)> = None; let blame_renderer = cx.global::().0.clone(); let shaped_lines = blamed_rows .into_iter() .enumerate() .flat_map(|(ix, blame_entry)| { let mut element = render_blame_entry( ix, &blame, blame_entry?, &self.style, &mut last_used_color, self.editor.clone(), workspace.clone(), blame_renderer.clone(), cx, )?; let start_y = ix as f32 * line_height - (scroll_top % line_height); let absolute_offset = gutter_hitbox.origin + point(start_x, start_y); element.prepaint_as_root( absolute_offset, size(width, AvailableSpace::MinContent), window, cx, ); Some(element) }) .collect(); Some(shaped_lines) } fn layout_indent_guides( &self, content_origin: gpui::Point, text_origin: gpui::Point, visible_buffer_range: Range, scroll_pixel_position: gpui::Point, line_height: Pixels, snapshot: &DisplaySnapshot, window: &mut Window, cx: &mut App, ) -> Option> { if self.editor.read(cx).mode().is_minimap() { return None; } let indent_guides = self.editor.update(cx, |editor, cx| { editor.indent_guides(visible_buffer_range, snapshot, cx) })?; let active_indent_guide_indices = self.editor.update(cx, |editor, cx| { editor .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx) .unwrap_or_default() }); Some( indent_guides .into_iter() .enumerate() .filter_map(|(i, indent_guide)| { let single_indent_width = self.column_pixels(indent_guide.tab_size as usize, window, cx); let total_width = single_indent_width * indent_guide.depth as f32; let start_x = content_origin.x + total_width - scroll_pixel_position.x; if start_x >= text_origin.x { let (offset_y, length) = Self::calculate_indent_guide_bounds( indent_guide.start_row..indent_guide.end_row, line_height, snapshot, ); let start_y = content_origin.y + offset_y - scroll_pixel_position.y; Some(IndentGuideLayout { origin: point(start_x, start_y), length, single_indent_width, depth: indent_guide.depth, active: active_indent_guide_indices.contains(&i), settings: indent_guide.settings, }) } else { None } }) .collect(), ) } fn calculate_indent_guide_bounds( row_range: Range, line_height: Pixels, snapshot: &DisplaySnapshot, ) -> (gpui::Pixels, gpui::Pixels) { let start_point = Point::new(row_range.start.0, 0); let end_point = Point::new(row_range.end.0, 0); let row_range = start_point.to_display_point(snapshot).row() ..end_point.to_display_point(snapshot).row(); let mut prev_line = start_point; prev_line.row = prev_line.row.saturating_sub(1); let prev_line = prev_line.to_display_point(snapshot).row(); let mut cons_line = end_point; cons_line.row += 1; let cons_line = cons_line.to_display_point(snapshot).row(); let mut offset_y = row_range.start.0 as f32 * line_height; let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height; // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line. if row_range.end == cons_line { length += line_height; } // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above, // we want to extend the indent guide to the start of the block. let mut block_height = 0; let mut block_offset = 0; let mut found_excerpt_header = false; for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) { if matches!(block, Block::ExcerptBoundary { .. }) { found_excerpt_header = true; break; } block_offset += block.height(); block_height += block.height(); } if !found_excerpt_header { offset_y -= block_offset as f32 * line_height; length += block_height as f32 * line_height; } // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt, // we want to ensure that the indent guide stops before the excerpt header. let mut block_height = 0; let mut found_excerpt_header = false; for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) { if matches!(block, Block::ExcerptBoundary { .. }) { found_excerpt_header = true; } block_height += block.height(); } if found_excerpt_header { length -= block_height as f32 * line_height; } (offset_y, length) } fn layout_breakpoints( &self, line_height: Pixels, range: Range, scroll_pixel_position: gpui::Point, gutter_dimensions: &GutterDimensions, gutter_hitbox: &Hitbox, display_hunks: &[(DisplayDiffHunk, Option)], snapshot: &EditorSnapshot, breakpoints: HashMap)>, row_infos: &[RowInfo], window: &mut Window, cx: &mut App, ) -> Vec { self.editor.update(cx, |editor, cx| { breakpoints .into_iter() .filter_map(|(display_row, (text_anchor, bp, state))| { if row_infos .get((display_row.0.saturating_sub(range.start.0)) as usize) .is_some_and(|row_info| { row_info.expand_info.is_some() || row_info .diff_status .is_some_and(|status| status.is_deleted()) }) { return None; } if range.start > display_row || range.end < display_row { return None; } let row = MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row); if snapshot.is_line_folded(row) { return None; } let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx); let button = prepaint_gutter_button( button, display_row, line_height, gutter_dimensions, scroll_pixel_position, gutter_hitbox, display_hunks, window, cx, ); Some(button) }) .collect_vec() }) } #[allow(clippy::too_many_arguments)] fn layout_run_indicators( &self, line_height: Pixels, range: Range, row_infos: &[RowInfo], scroll_pixel_position: gpui::Point, gutter_dimensions: &GutterDimensions, gutter_hitbox: &Hitbox, display_hunks: &[(DisplayDiffHunk, Option)], snapshot: &EditorSnapshot, breakpoints: &mut HashMap)>, window: &mut Window, cx: &mut App, ) -> Vec { self.editor.update(cx, |editor, cx| { let active_task_indicator_row = if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu { deployed_from, actions, .. })) = editor.context_menu.borrow().as_ref() { actions .tasks() .map(|tasks| tasks.position.to_display_point(snapshot).row()) .or_else(|| match deployed_from { Some(CodeActionSource::Indicator(row)) => Some(*row), _ => None, }) } else { None }; let offset_range_start = snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left); let offset_range_end = snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right); editor .tasks .iter() .filter_map(|(_, tasks)| { let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot); if multibuffer_point < offset_range_start || multibuffer_point > offset_range_end { return None; } let multibuffer_row = MultiBufferRow(multibuffer_point.row); let buffer_folded = snapshot .buffer_snapshot .buffer_line_for_row(multibuffer_row) .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id()) .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx)) .unwrap_or(false); if buffer_folded { return None; } if snapshot.is_line_folded(multibuffer_row) { // Skip folded indicators, unless it's the starting line of a fold. if multibuffer_row .0 .checked_sub(1) .map_or(false, |previous_row| { snapshot.is_line_folded(MultiBufferRow(previous_row)) }) { return None; } } let display_row = multibuffer_point.to_display_point(snapshot).row(); if !range.contains(&display_row) { return None; } if row_infos .get((display_row - range.start).0 as usize) .is_some_and(|row_info| row_info.expand_info.is_some()) { return None; } let button = editor.render_run_indicator( &self.style, Some(display_row) == active_task_indicator_row, display_row, breakpoints.remove(&display_row), cx, ); let button = prepaint_gutter_button( button, display_row, line_height, gutter_dimensions, scroll_pixel_position, gutter_hitbox, display_hunks, window, cx, ); Some(button) }) .collect_vec() }) } fn layout_expand_toggles( &self, gutter_hitbox: &Hitbox, gutter_dimensions: GutterDimensions, em_width: Pixels, line_height: Pixels, scroll_position: gpui::Point, buffer_rows: &[RowInfo], window: &mut Window, cx: &mut App, ) -> Vec)>> { if self.editor.read(cx).disable_expand_excerpt_buttons { return vec![]; } let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2; let scroll_top = scroll_position.y * line_height; let max_line_number_length = self .editor .read(cx) .buffer() .read(cx) .snapshot(cx) .widest_line_number() .ilog10() + 1; let elements = buffer_rows .into_iter() .enumerate() .map(|(ix, row_info)| { let ExpandInfo { excerpt_id, direction, } = row_info.expand_info?; let icon_name = match direction { ExpandExcerptDirection::Up => IconName::ExpandUp, ExpandExcerptDirection::Down => IconName::ExpandDown, ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical, }; let git_gutter_width = Self::gutter_strip_width(line_height); let available_width = gutter_dimensions.left_padding - git_gutter_width; let editor = self.editor.clone(); let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS && row_info .buffer_row .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length) || gutter_dimensions.right_padding == px(0.); let width = if is_wide { available_width - px(2.) } else { available_width + em_width - px(2.) }; let toggle = IconButton::new(("expand", ix), icon_name) .icon_color(Color::Custom(cx.theme().colors().editor_line_number)) .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground)) .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size()))) .width(width.into()) .on_click(move |_, window, cx| { editor.update(cx, |editor, cx| { editor.expand_excerpt(excerpt_id, direction, window, cx); }); }) .tooltip(Tooltip::for_action_title( "Expand Excerpt", &crate::actions::ExpandExcerpts::default(), )) .into_any_element(); let position = point( git_gutter_width + px(1.), ix as f32 * line_height - (scroll_top % line_height) + px(1.), ); let origin = gutter_hitbox.origin + position; Some((toggle, origin)) }) .collect(); elements } fn calculate_relative_line_numbers( &self, snapshot: &EditorSnapshot, rows: &Range, relative_to: Option, ) -> HashMap { let mut relative_rows: HashMap = Default::default(); let Some(relative_to) = relative_to else { return relative_rows; }; let start = rows.start.min(relative_to); let end = rows.end.max(relative_to); let buffer_rows = snapshot .row_infos(start) .take(1 + end.minus(start) as usize) .collect::>(); let head_idx = relative_to.minus(start); let mut delta = 1; let mut i = head_idx + 1; while i < buffer_rows.len() as u32 { if buffer_rows[i as usize].buffer_row.is_some() { if rows.contains(&DisplayRow(i + start.0)) { relative_rows.insert(DisplayRow(i + start.0), delta); } delta += 1; } i += 1; } delta = 1; i = head_idx.min(buffer_rows.len() as u32 - 1); while i > 0 && buffer_rows[i as usize].buffer_row.is_none() { i -= 1; } while i > 0 { i -= 1; if buffer_rows[i as usize].buffer_row.is_some() { if rows.contains(&DisplayRow(i + start.0)) { relative_rows.insert(DisplayRow(i + start.0), delta); } delta += 1; } } relative_rows } fn layout_line_numbers( &self, gutter_hitbox: Option<&Hitbox>, gutter_dimensions: GutterDimensions, line_height: Pixels, scroll_position: gpui::Point, rows: Range, buffer_rows: &[RowInfo], active_rows: &BTreeMap, newest_selection_head: Option, snapshot: &EditorSnapshot, window: &mut Window, cx: &mut App, ) -> Arc> { let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| { EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full() }); if !include_line_numbers { return Arc::default(); } let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| { let newest_selection_head = newest_selection_head.unwrap_or_else(|| { let newest = editor.selections.newest::(cx); SelectionLayout::new( newest, editor.selections.line_mode, editor.cursor_shape, &snapshot.display_snapshot, true, true, None, ) .head }); let is_relative = editor.should_use_relative_line_numbers(cx); (newest_selection_head, is_relative) }); let relative_to = if is_relative { Some(newest_selection_head.row()) } else { None }; let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to); let mut line_number = String::new(); let line_numbers = buffer_rows .into_iter() .enumerate() .flat_map(|(ix, row_info)| { let display_row = DisplayRow(rows.start.0 + ix as u32); line_number.clear(); let non_relative_number = row_info.buffer_row? + 1; let number = relative_rows .get(&display_row) .unwrap_or(&non_relative_number); write!(&mut line_number, "{number}").unwrap(); if row_info .diff_status .is_some_and(|status| status.is_deleted()) { return None; } let color = active_rows .get(&display_row) .map(|spec| { if spec.breakpoint { cx.theme().colors().debugger_accent } else { cx.theme().colors().editor_active_line_number } }) .unwrap_or_else(|| cx.theme().colors().editor_line_number); let shaped_line = self.shape_line_number(SharedString::from(&line_number), color, window); let scroll_top = scroll_position.y * line_height; let line_origin = gutter_hitbox.map(|hitbox| { hitbox.origin + point( hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding, ix as f32 * line_height - (scroll_top % line_height), ) }); #[cfg(not(test))] let hitbox = line_origin.map(|line_origin| { window.insert_hitbox( Bounds::new(line_origin, size(shaped_line.width, line_height)), HitboxBehavior::Normal, ) }); #[cfg(test)] let hitbox = { let _ = line_origin; None }; let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row; let multi_buffer_row = MultiBufferRow(multi_buffer_row); let line_number = LineNumberLayout { shaped_line, hitbox, }; Some((multi_buffer_row, line_number)) }) .collect(); Arc::new(line_numbers) } fn layout_crease_toggles( &self, rows: Range, row_infos: &[RowInfo], active_rows: &BTreeMap, snapshot: &EditorSnapshot, window: &mut Window, cx: &mut App, ) -> Vec> { let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds && snapshot.mode.is_full() && self.editor.read(cx).is_singleton(cx); if include_fold_statuses { row_infos .into_iter() .enumerate() .map(|(ix, info)| { if info.expand_info.is_some() { return None; } let row = info.multibuffer_row?; let display_row = DisplayRow(rows.start.0 + ix as u32); let active = active_rows.contains_key(&display_row); snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx) }) .collect() } else { Vec::new() } } fn layout_crease_trailers( &self, buffer_rows: impl IntoIterator, snapshot: &EditorSnapshot, window: &mut Window, cx: &mut App, ) -> Vec> { buffer_rows .into_iter() .map(|row_info| { if row_info.expand_info.is_some() { return None; } if let Some(row) = row_info.multibuffer_row { snapshot.render_crease_trailer(row, window, cx) } else { None } }) .collect() } fn layout_lines( rows: Range, snapshot: &EditorSnapshot, style: &EditorStyle, editor_width: Pixels, is_row_soft_wrapped: impl Copy + Fn(usize) -> bool, window: &mut Window, cx: &mut App, ) -> Vec { if rows.start >= rows.end { return Vec::new(); } // Show the placeholder when the editor is empty if snapshot.is_empty() { let font_size = style.text.font_size.to_pixels(window.rem_size()); let placeholder_color = cx.theme().colors().text_placeholder; let placeholder_text = snapshot.placeholder_text(); let placeholder_lines = placeholder_text .as_ref() .map_or("", AsRef::as_ref) .split('\n') .skip(rows.start.0 as usize) .chain(iter::repeat("")) .take(rows.len()); placeholder_lines .map(move |line| { let run = TextRun { len: line.len(), font: style.text.font(), color: placeholder_color, background_color: None, underline: None, strikethrough: None, }; let line = window .text_system() .shape_line(line.to_string().into(), font_size, &[run]); LineWithInvisibles { width: line.width, len: line.len, fragments: smallvec![LineFragment::Text(line)], invisibles: Vec::new(), font_size, } }) .collect() } else { let chunks = snapshot.highlighted_chunks(rows.clone(), true, style); LineWithInvisibles::from_chunks( chunks, &style, MAX_LINE_LEN, rows.len(), &snapshot.mode, editor_width, is_row_soft_wrapped, window, cx, ) } } fn prepaint_lines( &self, start_row: DisplayRow, line_layouts: &mut [LineWithInvisibles], line_height: Pixels, scroll_pixel_position: gpui::Point, content_origin: gpui::Point, window: &mut Window, cx: &mut App, ) -> SmallVec<[AnyElement; 1]> { let mut line_elements = SmallVec::new(); for (ix, line) in line_layouts.iter_mut().enumerate() { let row = start_row + DisplayRow(ix as u32); line.prepaint( line_height, scroll_pixel_position, row, content_origin, &mut line_elements, window, cx, ); } line_elements } fn render_block( &self, block: &Block, available_width: AvailableSpace, block_id: BlockId, block_row_start: DisplayRow, snapshot: &EditorSnapshot, text_x: Pixels, rows: &Range, line_layouts: &[LineWithInvisibles], editor_margins: &EditorMargins, line_height: Pixels, em_width: Pixels, text_hitbox: &Hitbox, editor_width: Pixels, scroll_width: &mut Pixels, resized_blocks: &mut HashMap, row_block_types: &mut HashMap, selections: &[Selection], selected_buffer_ids: &Vec, is_row_soft_wrapped: impl Copy + Fn(usize) -> bool, sticky_header_excerpt_id: Option, window: &mut Window, cx: &mut App, ) -> Option<(AnyElement, Size, DisplayRow, Pixels)> { let mut x_position = None; let mut element = match block { Block::Custom(custom) => { let block_start = custom.start().to_point(&snapshot.buffer_snapshot); let block_end = custom.end().to_point(&snapshot.buffer_snapshot); if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) { return None; } let align_to = block_start.to_display_point(snapshot); let x_and_width = |layout: &LineWithInvisibles| { Some(( text_x + layout.x_for_index(align_to.column() as usize), text_x + layout.width, )) }; let line_ix = align_to.row().0.checked_sub(rows.start.0); x_position = if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) { x_and_width(&layout) } else { x_and_width(&layout_line( align_to.row(), snapshot, &self.style, editor_width, is_row_soft_wrapped, window, cx, )) }; let anchor_x = x_position.unwrap().0; let selected = selections .binary_search_by(|selection| { if selection.end <= block_start { Ordering::Less } else if selection.start >= block_end { Ordering::Greater } else { Ordering::Equal } }) .is_ok(); div() .size_full() .children( (!snapshot.mode.is_minimap() || custom.render_in_minimap).then(|| { custom.render(&mut BlockContext { window, app: cx, anchor_x, margins: editor_margins, line_height, em_width, block_id, selected, max_width: text_hitbox.size.width.max(*scroll_width), editor_style: &self.style, }) }), ) .into_any() } Block::FoldedBuffer { first_excerpt, height, .. } => { let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id); let result = v_flex().id(block_id).w_full().pr(editor_margins.right); let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt); result .child(self.render_buffer_header( first_excerpt, true, selected, false, jump_data, window, cx, )) .into_any_element() } Block::ExcerptBoundary { excerpt, height, starts_new_buffer, .. } => { let color = cx.theme().colors().clone(); let mut result = v_flex().id(block_id).w_full(); let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt); if *starts_new_buffer { if sticky_header_excerpt_id != Some(excerpt.id) { let selected = selected_buffer_ids.contains(&excerpt.buffer_id); result = result.child(div().pr(editor_margins.right).child( self.render_buffer_header( excerpt, false, selected, false, jump_data, window, cx, ), )); } else { result = result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height())); } } else { result = result.child( h_flex().relative().child( div() .top(line_height / 2.) .absolute() .w_full() .h_px() .bg(color.border_variant), ), ); }; result.into_any() } }; // Discover the element's content height, then round up to the nearest multiple of line height. let preliminary_size = element.layout_as_root( size(available_width, AvailableSpace::MinContent), window, cx, ); let quantized_height = (preliminary_size.height / line_height).ceil() * line_height; let final_size = if preliminary_size.height == quantized_height { preliminary_size } else { element.layout_as_root(size(available_width, quantized_height.into()), window, cx) }; let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1); let mut row = block_row_start; let mut x_offset = px(0.); let mut is_block = true; if let BlockId::Custom(custom_block_id) = block_id { if block.has_height() { if block.place_near() { if let Some((x_target, line_width)) = x_position { let margin = em_width * 2; if line_width + final_size.width + margin < editor_width + editor_margins.gutter.full_width() && !row_block_types.contains_key(&(row - 1)) && element_height_in_lines == 1 { x_offset = line_width + margin; row = row - 1; is_block = false; element_height_in_lines = 0; row_block_types.insert(row, is_block); } else { let max_offset = editor_width + editor_margins.gutter.full_width() - final_size.width; let min_offset = (x_target + em_width - final_size.width) .max(editor_margins.gutter.full_width()); x_offset = x_target.min(max_offset).max(min_offset); } } }; if element_height_in_lines != block.height() { resized_blocks.insert(custom_block_id, element_height_in_lines); } } } for i in 0..element_height_in_lines { row_block_types.insert(row + i, is_block); } Some((element, final_size, row, x_offset)) } fn render_buffer_header( &self, for_excerpt: &ExcerptInfo, is_folded: bool, is_selected: bool, is_sticky: bool, jump_data: JumpData, window: &mut Window, cx: &mut App, ) -> Div { let editor = self.editor.read(cx); let file_status = editor .buffer .read(cx) .all_diff_hunks_expanded() .then(|| { editor .project .as_ref()? .read(cx) .status_for_buffer_id(for_excerpt.buffer_id, cx) }) .flatten(); let include_root = editor .project .as_ref() .map(|project| project.read(cx).visible_worktrees(cx).count() > 1) .unwrap_or_default(); let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file()); let path = for_excerpt.buffer.resolve_file_path(cx, include_root); let filename = path .as_ref() .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string())); let parent_path = path.as_ref().and_then(|path| { Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR) }); let focus_handle = editor.focus_handle(cx); let colors = cx.theme().colors(); div() .p_1() .w_full() .h(FILE_HEADER_HEIGHT as f32 * window.line_height()) .child( h_flex() .size_full() .gap_2() .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667))) .pl_0p5() .pr_5() .rounded_sm() .when(is_sticky, |el| el.shadow_md()) .border_1() .map(|div| { let border_color = if is_selected && is_folded && focus_handle.contains_focused(window, cx) { colors.border_focused } else { colors.border }; div.border_color(border_color) }) .bg(colors.editor_subheader_background) .hover(|style| style.bg(colors.element_hover)) .map(|header| { let editor = self.editor.clone(); let buffer_id = for_excerpt.buffer_id; let toggle_chevron_icon = FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path); header.child( div() .hover(|style| style.bg(colors.element_selected)) .rounded_xs() .child( ButtonLike::new("toggle-buffer-fold") .style(ui::ButtonStyle::Transparent) .height(px(28.).into()) .width(px(28.).into()) .children(toggle_chevron_icon) .tooltip({ let focus_handle = focus_handle.clone(); move |window, cx| { Tooltip::for_action_in( "Toggle Excerpt Fold", &ToggleFold, &focus_handle, window, cx, ) } }) .on_click(move |_, _, cx| { if is_folded { editor.update(cx, |editor, cx| { editor.unfold_buffer(buffer_id, cx); }); } else { editor.update(cx, |editor, cx| { editor.fold_buffer(buffer_id, cx); }); } }), ), ) }) .children( editor .addons .values() .filter_map(|addon| { addon.render_buffer_header_controls(for_excerpt, window, cx) }) .take(1), ) .child( h_flex() .cursor_pointer() .id("path header block") .size_full() .justify_between() .child( h_flex() .gap_2() .child( Label::new( filename .map(SharedString::from) .unwrap_or_else(|| "untitled".into()), ) .single_line() .when_some( file_status, |el, status| { el.color(if status.is_conflicted() { Color::Conflict } else if status.is_modified() { Color::Modified } else if status.is_deleted() { Color::Disabled } else { Color::Created }) .when(status.is_deleted(), |el| el.strikethrough()) }, ), ) .when_some(parent_path, |then, path| { then.child(div().child(path).text_color( if file_status.is_some_and(FileStatus::is_deleted) { colors.text_disabled } else { colors.text_muted }, )) }), ) .when(can_open_excerpts && is_selected && path.is_some(), |el| { el.child( h_flex() .id("jump-to-file-button") .gap_2p5() .child(Label::new("Jump To File")) .children( KeyBinding::for_action_in( &OpenExcerpts, &focus_handle, window, cx, ) .map(|binding| binding.into_any_element()), ), ) }) .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation()) .on_click(window.listener_for(&self.editor, { move |editor, e: &ClickEvent, window, cx| { editor.open_excerpts_common( Some(jump_data.clone()), e.down.modifiers.secondary(), window, cx, ); } })), ), ) } fn render_blocks( &self, rows: Range, snapshot: &EditorSnapshot, hitbox: &Hitbox, text_hitbox: &Hitbox, editor_width: Pixels, scroll_width: &mut Pixels, editor_margins: &EditorMargins, em_width: Pixels, text_x: Pixels, line_height: Pixels, line_layouts: &mut [LineWithInvisibles], selections: &[Selection], selected_buffer_ids: &Vec, is_row_soft_wrapped: impl Copy + Fn(usize) -> bool, sticky_header_excerpt_id: Option, window: &mut Window, cx: &mut App, ) -> Result<(Vec, HashMap), HashMap> { let (fixed_blocks, non_fixed_blocks) = snapshot .blocks_in_range(rows.clone()) .partition::, _>(|(_, block)| block.style() == BlockStyle::Fixed); let mut focused_block = self .editor .update(cx, |editor, _| editor.take_focused_block()); let mut fixed_block_max_width = Pixels::ZERO; let mut blocks = Vec::new(); let mut resized_blocks = HashMap::default(); let mut row_block_types = HashMap::default(); for (row, block) in fixed_blocks { let block_id = block.id(); if focused_block.as_ref().map_or(false, |b| b.id == block_id) { focused_block = None; } if let Some((element, element_size, row, x_offset)) = self.render_block( block, AvailableSpace::MinContent, block_id, row, snapshot, text_x, &rows, line_layouts, editor_margins, line_height, em_width, text_hitbox, editor_width, scroll_width, &mut resized_blocks, &mut row_block_types, selections, selected_buffer_ids, is_row_soft_wrapped, sticky_header_excerpt_id, window, cx, ) { fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width); blocks.push(BlockLayout { id: block_id, x_offset, row: Some(row), element, available_space: size(AvailableSpace::MinContent, element_size.height.into()), style: BlockStyle::Fixed, overlaps_gutter: true, is_buffer_header: block.is_buffer_header(), }); } } for (row, block) in non_fixed_blocks { let style = block.style(); let width = match (style, block.place_near()) { (_, true) => AvailableSpace::MinContent, (BlockStyle::Sticky, _) => hitbox.size.width.into(), (BlockStyle::Flex, _) => hitbox .size .width .max(fixed_block_max_width) .max(editor_margins.gutter.width + *scroll_width) .into(), (BlockStyle::Fixed, _) => unreachable!(), }; let block_id = block.id(); if focused_block.as_ref().map_or(false, |b| b.id == block_id) { focused_block = None; } if let Some((element, element_size, row, x_offset)) = self.render_block( block, width, block_id, row, snapshot, text_x, &rows, line_layouts, editor_margins, line_height, em_width, text_hitbox, editor_width, scroll_width, &mut resized_blocks, &mut row_block_types, selections, selected_buffer_ids, is_row_soft_wrapped, sticky_header_excerpt_id, window, cx, ) { blocks.push(BlockLayout { id: block_id, x_offset, row: Some(row), element, available_space: size(width, element_size.height.into()), style, overlaps_gutter: !block.place_near(), is_buffer_header: block.is_buffer_header(), }); } } if let Some(focused_block) = focused_block { if let Some(focus_handle) = focused_block.focus_handle.upgrade() { if focus_handle.is_focused(window) { if let Some(block) = snapshot.block_for_id(focused_block.id) { let style = block.style(); let width = match style { BlockStyle::Fixed => AvailableSpace::MinContent, BlockStyle::Flex => AvailableSpace::Definite( hitbox .size .width .max(fixed_block_max_width) .max(editor_margins.gutter.width + *scroll_width), ), BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width), }; if let Some((element, element_size, _, x_offset)) = self.render_block( &block, width, focused_block.id, rows.end, snapshot, text_x, &rows, line_layouts, editor_margins, line_height, em_width, text_hitbox, editor_width, scroll_width, &mut resized_blocks, &mut row_block_types, selections, selected_buffer_ids, is_row_soft_wrapped, sticky_header_excerpt_id, window, cx, ) { blocks.push(BlockLayout { id: block.id(), x_offset, row: None, element, available_space: size(width, element_size.height.into()), style, overlaps_gutter: true, is_buffer_header: block.is_buffer_header(), }); } } } } } if resized_blocks.is_empty() { *scroll_width = (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width); Ok((blocks, row_block_types)) } else { Err(resized_blocks) } } fn layout_blocks( &self, blocks: &mut Vec, hitbox: &Hitbox, line_height: Pixels, scroll_pixel_position: gpui::Point, window: &mut Window, cx: &mut App, ) { for block in blocks { let mut origin = if let Some(row) = block.row { hitbox.origin + point( block.x_offset, row.as_f32() * line_height - scroll_pixel_position.y, ) } else { // Position the block outside the visible area hitbox.origin + point(Pixels::ZERO, hitbox.size.height) }; if !matches!(block.style, BlockStyle::Sticky) { origin += point(-scroll_pixel_position.x, Pixels::ZERO); } let focus_handle = block .element .prepaint_as_root(origin, block.available_space, window, cx); if let Some(focus_handle) = focus_handle { self.editor.update(cx, |editor, _cx| { editor.set_focused_block(FocusedBlock { id: block.id, focus_handle: focus_handle.downgrade(), }); }); } } } fn layout_sticky_buffer_header( &self, StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>, scroll_position: f32, line_height: Pixels, right_margin: Pixels, snapshot: &EditorSnapshot, hitbox: &Hitbox, selected_buffer_ids: &Vec, blocks: &[BlockLayout], window: &mut Window, cx: &mut App, ) -> AnyElement { let jump_data = header_jump_data( snapshot, DisplayRow(scroll_position as u32), FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, excerpt, ); let editor_bg_color = cx.theme().colors().editor_background; let selected = selected_buffer_ids.contains(&excerpt.buffer_id); let available_width = hitbox.bounds.size.width - right_margin; let mut header = v_flex() .relative() .child( div() .w(available_width) .h(FILE_HEADER_HEIGHT as f32 * line_height) .bg(linear_gradient( 0., linear_color_stop(editor_bg_color.opacity(0.), 0.), linear_color_stop(editor_bg_color, 0.6), )) .absolute() .top_0(), ) .child( self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx) .into_any_element(), ) .into_any_element(); let mut origin = hitbox.origin; // Move floating header up to avoid colliding with the next buffer header. for block in blocks.iter() { if !block.is_buffer_header { continue; } let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else { continue; }; let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT); let offset = scroll_position - max_row as f32; if offset > 0.0 { origin.y -= offset * line_height; } break; } let size = size( AvailableSpace::Definite(available_width), AvailableSpace::MinContent, ); header.prepaint_as_root(origin, size, window, cx); header } fn layout_cursor_popovers( &self, line_height: Pixels, text_hitbox: &Hitbox, content_origin: gpui::Point, right_margin: Pixels, start_row: DisplayRow, scroll_pixel_position: gpui::Point, line_layouts: &[LineWithInvisibles], cursor: DisplayPoint, cursor_point: Point, style: &EditorStyle, window: &mut Window, cx: &mut App, ) -> Option { let mut min_menu_height = Pixels::ZERO; let mut max_menu_height = Pixels::ZERO; let mut height_above_menu = Pixels::ZERO; let height_below_menu = Pixels::ZERO; let mut edit_prediction_popover_visible = false; let mut context_menu_visible = false; let context_menu_placement; { let editor = self.editor.read(cx); if editor .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion()) { height_above_menu += editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING; edit_prediction_popover_visible = true; } if editor.context_menu_visible() { if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() { let (min_height_in_lines, max_height_in_lines) = editor .context_menu_options .as_ref() .map_or((3, 12), |options| { (options.min_entries_visible, options.max_entries_visible) }); min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING; max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING; context_menu_visible = true; } } context_menu_placement = editor .context_menu_options .as_ref() .and_then(|options| options.placement.clone()); } let visible = edit_prediction_popover_visible || context_menu_visible; if !visible { return None; } let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize]; let target_position = content_origin + gpui::Point { x: cmp::max( px(0.), cursor_row_layout.x_for_index(cursor.column() as usize) - scroll_pixel_position.x, ), y: cmp::max( px(0.), cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y, ), }; let viewport_bounds = Bounds::new(Default::default(), window.viewport_size()).extend(Edges { right: -right_margin - MENU_GAP, ..Default::default() }); let min_height = height_above_menu + min_menu_height + height_below_menu; let max_height = height_above_menu + max_menu_height + height_below_menu; let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line( target_position, line_height, min_height, max_height, context_menu_placement, text_hitbox, viewport_bounds, window, cx, |height, max_width_for_stable_x, y_flipped, window, cx| { // First layout the menu to get its size - others can be at least this wide. let context_menu = if context_menu_visible { let menu_height = if y_flipped { height - height_below_menu } else { height - height_above_menu }; let mut element = self .render_context_menu(line_height, menu_height, window, cx) .expect("Visible context menu should always render."); let size = element.layout_as_root(AvailableSpace::min_size(), window, cx); Some((CursorPopoverType::CodeContextMenu, element, size)) } else { None }; let min_width = context_menu .as_ref() .map_or(px(0.), |(_, _, size)| size.width); let max_width = max_width_for_stable_x.max( context_menu .as_ref() .map_or(px(0.), |(_, _, size)| size.width), ); let edit_prediction = if edit_prediction_popover_visible { self.editor.update(cx, move |editor, cx| { let accept_binding = editor.accept_edit_prediction_keybind(window, cx); let mut element = editor.render_edit_prediction_cursor_popover( min_width, max_width, cursor_point, style, accept_binding.keystroke(), window, cx, )?; let size = element.layout_as_root(AvailableSpace::min_size(), window, cx); Some((CursorPopoverType::EditPrediction, element, size)) }) } else { None }; vec![edit_prediction, context_menu] .into_iter() .flatten() .collect::>() }, )?; let (menu_ix, (_, menu_bounds)) = laid_out_popovers .iter() .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?; let last_ix = laid_out_popovers.len() - 1; let menu_is_last = menu_ix == last_ix; let first_popover_bounds = laid_out_popovers[0].1; let last_popover_bounds = laid_out_popovers[last_ix].1; // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the // right, and otherwise it goes below or to the right. let mut target_bounds = Bounds::from_corners( first_popover_bounds.origin, last_popover_bounds.bottom_right(), ); target_bounds.size.width = menu_bounds.size.width; // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position // based on this is preferred for layout stability. let mut max_target_bounds = target_bounds; max_target_bounds.size.height = max_height; if y_flipped { max_target_bounds.origin.y -= max_height - target_bounds.size.height; } // Add spacing around `target_bounds` and `max_target_bounds`. let mut extend_amount = Edges::all(MENU_GAP); if y_flipped { extend_amount.bottom = line_height; } else { extend_amount.top = line_height; } let target_bounds = target_bounds.extend(extend_amount); let max_target_bounds = max_target_bounds.extend(extend_amount); let must_place_above_or_below = if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height { laid_out_popovers[menu_ix + 1..] .iter() .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width) } else { false }; let aside_bounds = self.layout_context_menu_aside( y_flipped, *menu_bounds, target_bounds, max_target_bounds, max_menu_height, must_place_above_or_below, text_hitbox, viewport_bounds, window, cx, ); if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| { if matches!(popover_type, CursorPopoverType::CodeContextMenu) { Some(*bounds) } else { None } }) { let bounds = if let Some(aside_bounds) = aside_bounds { menu_bounds.union(&aside_bounds) } else { menu_bounds }; return Some(ContextMenuLayout { y_flipped, bounds }); } None } fn layout_gutter_menu( &self, line_height: Pixels, text_hitbox: &Hitbox, content_origin: gpui::Point, right_margin: Pixels, scroll_pixel_position: gpui::Point, gutter_overshoot: Pixels, window: &mut Window, cx: &mut App, ) { let editor = self.editor.read(cx); if !editor.context_menu_visible() { return; } let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) = editor.context_menu_origin() else { return; }; // 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 text field. let target_position = content_origin + gpui::Point { x: -gutter_overshoot, y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y, }; let (min_height_in_lines, max_height_in_lines) = editor .context_menu_options .as_ref() .map_or((3, 12), |options| { (options.min_entries_visible, options.max_entries_visible) }); let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING; let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING; let viewport_bounds = Bounds::new(Default::default(), window.viewport_size()).extend(Edges { right: -right_margin - MENU_GAP, ..Default::default() }); self.layout_popovers_above_or_below_line( target_position, line_height, min_height, max_height, editor .context_menu_options .as_ref() .and_then(|options| options.placement.clone()), text_hitbox, viewport_bounds, window, cx, move |height, _max_width_for_stable_x, _, window, cx| { let mut element = self .render_context_menu(line_height, height, window, cx) .expect("Visible context menu should always render."); let size = element.layout_as_root(AvailableSpace::min_size(), window, cx); vec![(CursorPopoverType::CodeContextMenu, element, size)] }, ); } fn layout_popovers_above_or_below_line( &self, target_position: gpui::Point, line_height: Pixels, min_height: Pixels, max_height: Pixels, placement: Option, text_hitbox: &Hitbox, viewport_bounds: Bounds, window: &mut Window, cx: &mut App, make_sized_popovers: impl FnOnce( Pixels, Pixels, bool, &mut Window, &mut App, ) -> Vec<(CursorPopoverType, AnyElement, Size)>, ) -> Option<(Vec<(CursorPopoverType, Bounds)>, bool)> { let text_style = TextStyleRefinement { line_height: Some(DefiniteLength::Fraction( BufferLineHeight::Comfortable.value(), )), ..Default::default() }; window.with_text_style(Some(text_style), |window| { // If the max height won't fit below and there is more space above, put it above the line. let bottom_y_when_flipped = target_position.y - line_height; let available_above = bottom_y_when_flipped - text_hitbox.top(); let available_below = text_hitbox.bottom() - target_position.y; let y_overflows_below = max_height > available_below; let mut y_flipped = match placement { Some(ContextMenuPlacement::Above) => true, Some(ContextMenuPlacement::Below) => false, None => y_overflows_below && available_above > available_below, }; let mut height = cmp::min( max_height, if y_flipped { available_above } else { available_below }, ); // If the min height doesn't fit within text bounds, instead fit within the window. if height < min_height { let available_above = bottom_y_when_flipped; let available_below = viewport_bounds.bottom() - target_position.y; let (y_flipped_override, height_override) = match placement { Some(ContextMenuPlacement::Above) => { (true, cmp::min(available_above, min_height)) } Some(ContextMenuPlacement::Below) => { (false, cmp::min(available_below, min_height)) } None => { if available_below > min_height { (false, min_height) } else if available_above > min_height { (true, min_height) } else if available_above > available_below { (true, available_above) } else { (false, available_below) } } }; y_flipped = y_flipped_override; height = height_override; } let max_width_for_stable_x = viewport_bounds.right() - target_position.x; // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left // for very narrow windows. let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx); if popovers.is_empty() { return None; } let max_width = popovers .iter() .map(|(_, _, size)| size.width) .max() .unwrap_or_default(); let mut current_position = gpui::Point { // Snap the right edge of the list to the right edge of the window if its horizontal bounds // overflow. Include space for the scrollbar. x: target_position .x .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)), y: if y_flipped { bottom_y_when_flipped } else { target_position.y }, }; let mut laid_out_popovers = popovers .into_iter() .map(|(popover_type, element, size)| { if y_flipped { current_position.y -= size.height; } let position = current_position; window.defer_draw(element, current_position, 1); if !y_flipped { current_position.y += size.height + MENU_GAP; } else { current_position.y -= MENU_GAP; } (popover_type, Bounds::new(position, size)) }) .collect::>(); if y_flipped { laid_out_popovers.reverse(); } Some((laid_out_popovers, y_flipped)) }) } fn layout_context_menu_aside( &self, y_flipped: bool, menu_bounds: Bounds, target_bounds: Bounds, max_target_bounds: Bounds, max_height: Pixels, must_place_above_or_below: bool, text_hitbox: &Hitbox, viewport_bounds: Bounds, window: &mut Window, cx: &mut App, ) -> Option> { let available_within_viewport = target_bounds.space_within(&viewport_bounds); let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH && !must_place_above_or_below { let max_width = cmp::min( available_within_viewport.right - px(1.), MENU_ASIDE_MAX_WIDTH, ); let mut aside = self.render_context_menu_aside( size(max_width, max_height - POPOVER_Y_PADDING), window, cx, )?; let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx); let right_position = point(target_bounds.right(), menu_bounds.origin.y); Some((aside, right_position, size)) } else { let max_size = size( // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport // won't be needed here. cmp::min( cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH), viewport_bounds.right(), ), cmp::min( max_height, cmp::max( available_within_viewport.top, available_within_viewport.bottom, ), ) - POPOVER_Y_PADDING, ); let mut aside = self.render_context_menu_aside(max_size, window, cx)?; let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx); let top_position = point( menu_bounds.origin.x, target_bounds.top() - actual_size.height, ); let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom()); let fit_within = |available: Edges, wanted: Size| { // Prefer to fit on the same side of the line as the menu, then on the other side of // the line. if !y_flipped && wanted.height < available.bottom { Some(bottom_position) } else if !y_flipped && wanted.height < available.top { Some(top_position) } else if y_flipped && wanted.height < available.top { Some(top_position) } else if y_flipped && wanted.height < available.bottom { Some(bottom_position) } else { None } }; // Prefer choosing a direction using max sizes rather than actual size for stability. let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds); let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height); let aside_position = fit_within(available_within_text, wanted) // Fallback: fit max size in window. .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted)) // Fallback: fit actual size in window. .or_else(|| fit_within(available_within_viewport, actual_size)); aside_position.map(|position| (aside, position, actual_size)) }; // Skip drawing if it doesn't fit anywhere. if let Some((aside, position, size)) = positioned_aside { let aside_bounds = Bounds::new(position, size); window.defer_draw(aside, position, 2); return Some(aside_bounds); } None } fn render_context_menu( &self, line_height: Pixels, height: Pixels, window: &mut Window, cx: &mut App, ) -> Option { let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32; self.editor.update(cx, |editor, cx| { editor.render_context_menu(&self.style, max_height_in_lines, window, cx) }) } fn render_context_menu_aside( &self, max_size: Size, window: &mut Window, cx: &mut App, ) -> Option { if max_size.width < px(100.) || max_size.height < px(12.) { None } else { self.editor.update(cx, |editor, cx| { editor.render_context_menu_aside(max_size, window, cx) }) } } fn layout_mouse_context_menu( &self, editor_snapshot: &EditorSnapshot, visible_range: Range, content_origin: gpui::Point, window: &mut Window, cx: &mut App, ) -> Option { let position = self.editor.update(cx, |editor, _cx| { let visible_start_point = editor.display_to_pixel_point( DisplayPoint::new(visible_range.start, 0), editor_snapshot, window, )?; let visible_end_point = editor.display_to_pixel_point( DisplayPoint::new(visible_range.end, 0), editor_snapshot, window, )?; let mouse_context_menu = editor.mouse_context_menu.as_ref()?; let (source_display_point, position) = match mouse_context_menu.position { MenuPosition::PinnedToScreen(point) => (None, point), MenuPosition::PinnedToEditor { source, offset } => { let source_display_point = source.to_display_point(editor_snapshot); let source_point = editor.to_pixel_point(source, editor_snapshot, window)?; let position = content_origin + source_point + offset; (Some(source_display_point), position) } }; let source_included = source_display_point.map_or(true, |source_display_point| { visible_range .to_inclusive() .contains(&source_display_point.row()) }); let position_included = visible_start_point.y <= position.y && position.y <= visible_end_point.y; if !source_included && !position_included { None } else { Some(position) } })?; let text_style = TextStyleRefinement { line_height: Some(DefiniteLength::Fraction( BufferLineHeight::Comfortable.value(), )), ..Default::default() }; window.with_text_style(Some(text_style), |window| { let mut element = self.editor.read_with(cx, |editor, _| { let mouse_context_menu = editor.mouse_context_menu.as_ref()?; let context_menu = mouse_context_menu.context_menu.clone(); Some( deferred( anchored() .position(position) .child(context_menu) .anchor(Corner::TopLeft) .snap_to_window_with_margin(px(8.)), ) .with_priority(1) .into_any(), ) })?; element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx); Some(element) }) } fn layout_hover_popovers( &self, snapshot: &EditorSnapshot, hitbox: &Hitbox, visible_display_row_range: Range, content_origin: gpui::Point, scroll_pixel_position: gpui::Point, line_layouts: &[LineWithInvisibles], line_height: Pixels, em_width: Pixels, context_menu_layout: Option, window: &mut Window, cx: &mut App, ) { struct MeasuredHoverPopover { element: AnyElement, size: Size, horizontal_offset: Pixels, } let max_size = size( (120. * em_width) // Default size .min(hitbox.size.width / 2.) // Shrink to half of the editor width .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters (16. * line_height) // Default size .min(hitbox.size.height / 2.) // Shrink to half of the editor height .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines ); let hover_popovers = self.editor.update(cx, |editor, cx| { editor.hover_state.render( snapshot, visible_display_row_range.clone(), max_size, window, cx, ) }); let Some((position, hover_popovers)) = hover_popovers else { return; }; // This is safe because we check on layout whether the required row is available let hovered_row_layout = &line_layouts[position.row().minus(visible_display_row_range.start) as usize]; // Compute Hovered Point let x = hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x; let y = position.row().as_f32() * line_height - scroll_pixel_position.y; let hovered_point = content_origin + point(x, y); let mut overall_height = Pixels::ZERO; let mut measured_hover_popovers = Vec::new(); for (position, mut hover_popover) in hover_popovers.into_iter().with_position() { let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx); let horizontal_offset = (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width)) .min(Pixels::ZERO); match position { itertools::Position::Middle | itertools::Position::Last => { overall_height += HOVER_POPOVER_GAP } _ => {} } overall_height += size.height; measured_hover_popovers.push(MeasuredHoverPopover { element: hover_popover, size, horizontal_offset, }); } fn draw_occluder( width: Pixels, origin: gpui::Point, window: &mut Window, cx: &mut App, ) { let mut occlusion = div() .size_full() .occlude() .on_mouse_move(|_, _, cx| cx.stop_propagation()) .into_any_element(); occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx); window.defer_draw(occlusion, origin, 2); } fn place_popovers_above( hovered_point: gpui::Point, measured_hover_popovers: Vec, window: &mut Window, cx: &mut App, ) { let mut current_y = hovered_point.y; for (position, popover) in measured_hover_popovers.into_iter().with_position() { let size = popover.size; let popover_origin = point( hovered_point.x + popover.horizontal_offset, current_y - size.height, ); window.defer_draw(popover.element, popover_origin, 2); if position != itertools::Position::Last { let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP); draw_occluder(size.width, origin, window, cx); } current_y = popover_origin.y - HOVER_POPOVER_GAP; } } fn place_popovers_below( hovered_point: gpui::Point, measured_hover_popovers: Vec, line_height: Pixels, window: &mut Window, cx: &mut App, ) { let mut current_y = hovered_point.y + line_height; for (position, popover) in measured_hover_popovers.into_iter().with_position() { let size = popover.size; let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y); window.defer_draw(popover.element, popover_origin, 2); if position != itertools::Position::Last { let origin = point(popover_origin.x, popover_origin.y + size.height); draw_occluder(size.width, origin, window, cx); } current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP; } } let intersects_menu = |bounds: Bounds| -> bool { context_menu_layout .as_ref() .map_or(false, |menu| bounds.intersects(&menu.bounds)) }; let can_place_above = { let mut bounds_above = Vec::new(); let mut current_y = hovered_point.y; for popover in &measured_hover_popovers { let size = popover.size; let popover_origin = point( hovered_point.x + popover.horizontal_offset, current_y - size.height, ); bounds_above.push(Bounds::new(popover_origin, size)); current_y = popover_origin.y - HOVER_POPOVER_GAP; } bounds_above .iter() .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b)) }; let can_place_below = || { let mut bounds_below = Vec::new(); let mut current_y = hovered_point.y + line_height; for popover in &measured_hover_popovers { let size = popover.size; let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y); bounds_below.push(Bounds::new(popover_origin, size)); current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP; } bounds_below .iter() .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b)) }; if can_place_above { // try placing above hovered point place_popovers_above(hovered_point, measured_hover_popovers, window, cx); } else if can_place_below() { // try placing below hovered point place_popovers_below( hovered_point, measured_hover_popovers, line_height, window, cx, ); } else { // try to place popovers around the context menu let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| { let total_width = measured_hover_popovers .iter() .map(|p| p.size.width) .max() .unwrap_or(Pixels::ZERO); let y_for_horizontal_positioning = if menu.y_flipped { menu.bounds.bottom() - overall_height } else { menu.bounds.top() }; let possible_origins = vec![ // left of context menu point( menu.bounds.left() - total_width - HOVER_POPOVER_GAP, y_for_horizontal_positioning, ), // right of context menu point( menu.bounds.right() + HOVER_POPOVER_GAP, y_for_horizontal_positioning, ), // top of context menu point( menu.bounds.left(), menu.bounds.top() - overall_height - HOVER_POPOVER_GAP, ), // bottom of context menu point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP), ]; possible_origins.into_iter().find(|&origin| { Bounds::new(origin, size(total_width, overall_height)) .is_contained_within(hitbox) }) }); if let Some(origin) = origin_surrounding_menu { let mut current_y = origin.y; for (position, popover) in measured_hover_popovers.into_iter().with_position() { let size = popover.size; let popover_origin = point(origin.x, current_y); window.defer_draw(popover.element, popover_origin, 2); if position != itertools::Position::Last { let origin = point(popover_origin.x, popover_origin.y + size.height); draw_occluder(size.width, origin, window, cx); } current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP; } } else { // fallback to existing above/below cursor logic // this might overlap menu or overflow in rare case if can_place_above { place_popovers_above(hovered_point, measured_hover_popovers, window, cx); } else { place_popovers_below( hovered_point, measured_hover_popovers, line_height, window, cx, ); } } } } fn layout_diff_hunk_controls( &self, row_range: Range, row_infos: &[RowInfo], text_hitbox: &Hitbox, position_map: &PositionMap, newest_cursor_position: Option, line_height: Pixels, right_margin: Pixels, scroll_pixel_position: gpui::Point, display_hunks: &[(DisplayDiffHunk, Option)], highlighted_rows: &BTreeMap, editor: Entity, window: &mut Window, cx: &mut App, ) -> Vec { let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone(); let point_for_position = position_map.point_for_position(window.mouse_position()); let mut controls = vec![]; let active_positions = [ Some(point_for_position.previous_valid), newest_cursor_position, ]; for (hunk, _) in display_hunks { if let DisplayDiffHunk::Unfolded { display_row_range, multi_buffer_range, status, is_created_file, .. } = &hunk { if display_row_range.start < row_range.start || display_row_range.start >= row_range.end { continue; } if highlighted_rows .get(&display_row_range.start) .and_then(|highlight| highlight.type_id) .is_some_and(|type_id| { [ TypeId::of::(), TypeId::of::(), TypeId::of::(), TypeId::of::(), TypeId::of::(), ] .contains(&type_id) }) { continue; } let row_ix = (display_row_range.start - row_range.start).0 as usize; if row_infos[row_ix].diff_status.is_none() { continue; } if row_infos[row_ix] .diff_status .is_some_and(|status| status.is_added()) && !status.is_added() { continue; } if active_positions .iter() .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row()))) { let y = display_row_range.start.as_f32() * line_height + text_hitbox.bounds.top() - scroll_pixel_position.y; let mut element = render_diff_hunk_controls( display_row_range.start.0, status, multi_buffer_range.clone(), *is_created_file, line_height, &editor, window, cx, ); let size = element.layout_as_root(size(px(100.0), line_height).into(), window, cx); let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width; window.with_absolute_element_offset(gpui::Point::new(x, y), |window| { element.prepaint(window, cx) }); controls.push(element); } } } controls } fn layout_signature_help( &self, hitbox: &Hitbox, content_origin: gpui::Point, scroll_pixel_position: gpui::Point, newest_selection_head: Option, start_row: DisplayRow, line_layouts: &[LineWithInvisibles], line_height: Pixels, em_width: Pixels, context_menu_layout: Option, window: &mut Window, cx: &mut App, ) { if !self.editor.focus_handle(cx).is_focused(window) { return; } let Some(newest_selection_head) = newest_selection_head else { return; }; let max_size = size( (120. * em_width) // Default size .min(hitbox.size.width / 2.) // Shrink to half of the editor width .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters (16. * line_height) // Default size .min(hitbox.size.height / 2.) // Shrink to half of the editor height .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines ); let maybe_element = self.editor.update(cx, |editor, cx| { if let Some(popover) = editor.signature_help_state.popover_mut() { let element = popover.render(max_size, cx); Some(element) } else { None } }); let Some(mut element) = maybe_element else { return; }; let selection_row = newest_selection_head.row(); let Some(cursor_row_layout) = (selection_row >= start_row) .then(|| line_layouts.get(selection_row.minus(start_row) as usize)) .flatten() else { return; }; let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize) - scroll_pixel_position.x; let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y; let target_point = content_origin + point(target_x, target_y); let actual_size = element.layout_as_root(Size::::default(), window, cx); let (popover_bounds_above, popover_bounds_below) = { let horizontal_offset = (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (target_point.x + actual_size.width)) .min(Pixels::ZERO); let initial_x = target_point.x + horizontal_offset; ( Bounds::new( point(initial_x, target_point.y - actual_size.height), actual_size, ), Bounds::new( point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP), actual_size, ), ) }; let intersects_menu = |bounds: Bounds| -> bool { context_menu_layout .as_ref() .map_or(false, |menu| bounds.intersects(&menu.bounds)) }; let final_origin = if popover_bounds_above.is_contained_within(hitbox) && !intersects_menu(popover_bounds_above) { // try placing above cursor popover_bounds_above.origin } else if popover_bounds_below.is_contained_within(hitbox) && !intersects_menu(popover_bounds_below) { // try placing below cursor popover_bounds_below.origin } else { // try surrounding context menu if exists let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| { let y_for_horizontal_positioning = if menu.y_flipped { menu.bounds.bottom() - actual_size.height } else { menu.bounds.top() }; let possible_origins = vec![ // left of context menu point( menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP, y_for_horizontal_positioning, ), // right of context menu point( menu.bounds.right() + HOVER_POPOVER_GAP, y_for_horizontal_positioning, ), // top of context menu point( menu.bounds.left(), menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP, ), // bottom of context menu point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP), ]; possible_origins .into_iter() .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox)) }); origin_surrounding_menu.unwrap_or_else(|| { // fallback to existing above/below cursor logic // this might overlap menu or overflow in rare case if popover_bounds_above.is_contained_within(hitbox) { popover_bounds_above.origin } else { popover_bounds_below.origin } }) }; window.defer_draw(element, final_origin, 2); } fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) { window.paint_layer(layout.hitbox.bounds, |window| { let scroll_top = layout.position_map.snapshot.scroll_position().y; let gutter_bg = cx.theme().colors().editor_gutter_background; window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg)); window.paint_quad(fill( layout.position_map.text_hitbox.bounds, self.style.background, )); if matches!( layout.mode, EditorMode::Full { .. } | EditorMode::Minimap { .. } ) { let show_active_line_background = match layout.mode { EditorMode::Full { show_active_line_background, .. } => show_active_line_background, EditorMode::Minimap { .. } => true, _ => false, }; let mut active_rows = layout.active_rows.iter().peekable(); while let Some((start_row, contains_non_empty_selection)) = active_rows.next() { let mut end_row = start_row.0; while active_rows .peek() .map_or(false, |(active_row, has_selection)| { active_row.0 == end_row + 1 && has_selection.selection == contains_non_empty_selection.selection }) { active_rows.next().unwrap(); end_row += 1; } if show_active_line_background && !contains_non_empty_selection.selection { let highlight_h_range = match layout.position_map.snapshot.current_line_highlight { CurrentLineHighlight::Gutter => Some(Range { start: layout.hitbox.left(), end: layout.gutter_hitbox.right(), }), CurrentLineHighlight::Line => Some(Range { start: layout.position_map.text_hitbox.bounds.left(), end: layout.position_map.text_hitbox.bounds.right(), }), CurrentLineHighlight::All => Some(Range { start: layout.hitbox.left(), end: layout.hitbox.right(), }), CurrentLineHighlight::None => None, }; if let Some(range) = highlight_h_range { let active_line_bg = cx.theme().colors().editor_active_line_background; let bounds = Bounds { origin: point( range.start, layout.hitbox.origin.y + (start_row.as_f32() - scroll_top) * layout.position_map.line_height, ), size: size( range.end - range.start, layout.position_map.line_height * (end_row - start_row.0 + 1) as f32, ), }; window.paint_quad(fill(bounds, active_line_bg)); } } } let mut paint_highlight = |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, highlight: crate::LineHighlight, edges| { let mut origin_x = layout.hitbox.left(); let mut width = layout.hitbox.size.width; if !highlight.include_gutter { origin_x += layout.gutter_hitbox.size.width; width -= layout.gutter_hitbox.size.width; } let origin = point( origin_x, layout.hitbox.origin.y + (highlight_row_start.as_f32() - scroll_top) * layout.position_map.line_height, ); let size = size( width, layout.position_map.line_height * highlight_row_end.next_row().minus(highlight_row_start) as f32, ); let mut quad = fill(Bounds { origin, size }, highlight.background); if let Some(border_color) = highlight.border { quad.border_color = border_color; quad.border_widths = edges } window.paint_quad(quad); }; let mut current_paint: Option<(LineHighlight, Range, Edges)> = None; for (&new_row, &new_background) in &layout.highlighted_rows { match &mut current_paint { &mut Some((current_background, ref mut current_range, mut edges)) => { let new_range_started = current_background != new_background || current_range.end.next_row() != new_row; if new_range_started { if current_range.end.next_row() == new_row { edges.bottom = px(0.); }; paint_highlight( current_range.start, current_range.end, current_background, edges, ); let edges = Edges { top: if current_range.end.next_row() != new_row { px(1.) } else { px(0.) }, bottom: px(1.), ..Default::default() }; current_paint = Some((new_background, new_row..new_row, edges)); continue; } else { current_range.end = current_range.end.next_row(); } } None => { let edges = Edges { top: px(1.), bottom: px(1.), ..Default::default() }; current_paint = Some((new_background, new_row..new_row, edges)) } }; } if let Some((color, range, edges)) = current_paint { paint_highlight(range.start, range.end, color, edges); } let scroll_left = layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width; for (wrap_position, active) in layout.wrap_guides.iter() { let x = (layout.position_map.text_hitbox.origin.x + *wrap_position + layout.position_map.em_width / 2.) - scroll_left; let show_scrollbars = layout .scrollbars_layout .as_ref() .map_or(false, |layout| layout.visible); if x < layout.position_map.text_hitbox.origin.x || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds)) { continue; } let color = if *active { cx.theme().colors().editor_active_wrap_guide } else { cx.theme().colors().editor_wrap_guide }; window.paint_quad(fill( Bounds { origin: point(x, layout.position_map.text_hitbox.origin.y), size: size(px(1.), layout.position_map.text_hitbox.size.height), }, color, )); } } }) } fn paint_indent_guides( &mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App, ) { let Some(indent_guides) = &layout.indent_guides else { return; }; let faded_color = |color: Hsla, alpha: f32| { let mut faded = color; faded.a = alpha; faded }; for indent_guide in indent_guides { let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth); let settings = indent_guide.settings; // TODO fixed for now, expose them through themes later const INDENT_AWARE_ALPHA: f32 = 0.2; const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4; const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1; const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2; let line_color = match (settings.coloring, indent_guide.active) { (IndentGuideColoring::Disabled, _) => None, (IndentGuideColoring::Fixed, false) => { Some(cx.theme().colors().editor_indent_guide) } (IndentGuideColoring::Fixed, true) => { Some(cx.theme().colors().editor_indent_guide_active) } (IndentGuideColoring::IndentAware, false) => { Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA)) } (IndentGuideColoring::IndentAware, true) => { Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA)) } }; let background_color = match (settings.background_coloring, indent_guide.active) { (IndentGuideBackgroundColoring::Disabled, _) => None, (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color( indent_accent_colors, INDENT_AWARE_BACKGROUND_ALPHA, )), (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color( indent_accent_colors, INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA, )), }; let requested_line_width = if indent_guide.active { settings.active_line_width } else { settings.line_width } .clamp(1, 10); let mut line_indicator_width = 0.; if let Some(color) = line_color { window.paint_quad(fill( Bounds { origin: indent_guide.origin, size: size(px(requested_line_width as f32), indent_guide.length), }, color, )); line_indicator_width = requested_line_width as f32; } if let Some(color) = background_color { let width = indent_guide.single_indent_width - px(line_indicator_width); window.paint_quad(fill( Bounds { origin: point( indent_guide.origin.x + px(line_indicator_width), indent_guide.origin.y, ), size: size(width, indent_guide.length), }, color, )); } } } fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) { let is_singleton = self.editor.read(cx).is_singleton(cx); let line_height = layout.position_map.line_height; window.set_cursor_style(CursorStyle::Arrow, Some(&layout.gutter_hitbox)); for LineNumberLayout { shaped_line, hitbox, } in layout.line_numbers.values() { let Some(hitbox) = hitbox else { continue; }; let Some(()) = (if !is_singleton && hitbox.is_hovered(window) { let color = cx.theme().colors().editor_hover_line_number; let line = self.shape_line_number(shaped_line.text.clone(), color, window); line.paint(hitbox.origin, line_height, window, cx).log_err() } else { shaped_line .paint(hitbox.origin, line_height, window, cx) .log_err() }) else { continue; }; // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor. // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor. if is_singleton { window.set_cursor_style(CursorStyle::IBeam, Some(&hitbox)); } else { window.set_cursor_style(CursorStyle::PointingHand, Some(&hitbox)); } } } fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) { if layout.display_hunks.is_empty() { return; } let line_height = layout.position_map.line_height; window.paint_layer(layout.gutter_hitbox.bounds, |window| { for (hunk, hitbox) in &layout.display_hunks { let hunk_to_paint = match hunk { DisplayDiffHunk::Folded { .. } => { let hunk_bounds = Self::diff_hunk_bounds( &layout.position_map.snapshot, line_height, layout.gutter_hitbox.bounds, &hunk, ); Some(( hunk_bounds, cx.theme().colors().version_control_modified, Corners::all(px(0.)), DiffHunkStatus::modified_none(), )) } DisplayDiffHunk::Unfolded { status, display_row_range, .. } => hitbox.as_ref().map(|hunk_hitbox| match status.kind { DiffHunkStatusKind::Added => ( hunk_hitbox.bounds, cx.theme().colors().version_control_added, Corners::all(px(0.)), *status, ), DiffHunkStatusKind::Modified => ( hunk_hitbox.bounds, cx.theme().colors().version_control_modified, Corners::all(px(0.)), *status, ), DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => ( hunk_hitbox.bounds, cx.theme().colors().version_control_deleted, Corners::all(px(0.)), *status, ), DiffHunkStatusKind::Deleted => ( Bounds::new( point( hunk_hitbox.origin.x - hunk_hitbox.size.width, hunk_hitbox.origin.y, ), size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height), ), cx.theme().colors().version_control_deleted, Corners::all(1. * line_height), *status, ), }), }; if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint { // Flatten the background color with the editor color to prevent // elements below transparent hunks from showing through let flattened_background_color = cx .theme() .colors() .editor_background .blend(background_color); if !Self::diff_hunk_hollow(status, cx) { window.paint_quad(quad( hunk_bounds, corner_radii, flattened_background_color, Edges::default(), transparent_black(), BorderStyle::default(), )); } else { let flattened_unstaged_background_color = cx .theme() .colors() .editor_background .blend(background_color.opacity(0.3)); window.paint_quad(quad( hunk_bounds, corner_radii, flattened_unstaged_background_color, Edges::all(Pixels(1.0)), flattened_background_color, BorderStyle::Solid, )); } } } }); } fn gutter_strip_width(line_height: Pixels) -> Pixels { (0.275 * line_height).floor() } fn diff_hunk_bounds( snapshot: &EditorSnapshot, line_height: Pixels, gutter_bounds: Bounds, hunk: &DisplayDiffHunk, ) -> Bounds { let scroll_position = snapshot.scroll_position(); let scroll_top = scroll_position.y * line_height; let gutter_strip_width = Self::gutter_strip_width(line_height); match hunk { DisplayDiffHunk::Folded { display_row, .. } => { let start_y = display_row.as_f32() * line_height - scroll_top; let end_y = start_y + line_height; let highlight_origin = gutter_bounds.origin + point(px(0.), start_y); let highlight_size = size(gutter_strip_width, end_y - start_y); Bounds::new(highlight_origin, highlight_size) } DisplayDiffHunk::Unfolded { display_row_range, status, .. } => { if status.is_deleted() && display_row_range.is_empty() { let row = display_row_range.start; let offset = line_height / 2.; let start_y = row.as_f32() * line_height - offset - scroll_top; let end_y = start_y + line_height; let width = (0.35 * line_height).floor(); let highlight_origin = gutter_bounds.origin + point(px(0.), start_y); let highlight_size = size(width, end_y - start_y); Bounds::new(highlight_origin, highlight_size) } else { let start_row = display_row_range.start; let end_row = display_row_range.end; // If we're in a multibuffer, row range span might include an // excerpt header, so if we were to draw the marker straight away, // the hunk might include the rows of that header. // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap. // Instead, we simply check whether the range we're dealing with includes // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header. let end_row_in_current_excerpt = snapshot .blocks_in_range(start_row..end_row) .find_map(|(start_row, block)| { if matches!(block, Block::ExcerptBoundary { .. }) { Some(start_row) } else { None } }) .unwrap_or(end_row); let start_y = start_row.as_f32() * line_height - scroll_top; let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top; let highlight_origin = gutter_bounds.origin + point(px(0.), start_y); let highlight_size = size(gutter_strip_width, end_y - start_y); Bounds::new(highlight_origin, highlight_size) } } } } fn paint_gutter_indicators( &self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App, ) { window.paint_layer(layout.gutter_hitbox.bounds, |window| { window.with_element_namespace("crease_toggles", |window| { for crease_toggle in layout.crease_toggles.iter_mut().flatten() { crease_toggle.paint(window, cx); } }); window.with_element_namespace("expand_toggles", |window| { for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() { expand_toggle.paint(window, cx); } }); for breakpoint in layout.breakpoints.iter_mut() { breakpoint.paint(window, cx); } for test_indicator in layout.test_indicators.iter_mut() { test_indicator.paint(window, cx); } }); } fn paint_gutter_highlights( &self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App, ) { for (_, hunk_hitbox) in &layout.display_hunks { if let Some(hunk_hitbox) = hunk_hitbox { if !self .editor .read(cx) .buffer() .read(cx) .all_diff_hunks_expanded() { window.set_cursor_style(CursorStyle::PointingHand, Some(hunk_hitbox)); } } } let show_git_gutter = layout .position_map .snapshot .show_git_diff_gutter .unwrap_or_else(|| { matches!( ProjectSettings::get_global(cx).git.git_gutter, Some(GitGutterSetting::TrackedFiles) ) }); if show_git_gutter { Self::paint_gutter_diff_hunks(layout, window, cx) } let highlight_width = 0.275 * layout.position_map.line_height; let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height); window.paint_layer(layout.gutter_hitbox.bounds, |window| { for (range, color) in &layout.highlighted_gutter_ranges { let start_row = if range.start.row() < layout.visible_display_row_range.start { layout.visible_display_row_range.start - DisplayRow(1) } else { range.start.row() }; let end_row = if range.end.row() > layout.visible_display_row_range.end { layout.visible_display_row_range.end + DisplayRow(1) } else { range.end.row() }; let start_y = layout.gutter_hitbox.top() + start_row.0 as f32 * layout.position_map.line_height - layout.position_map.scroll_pixel_position.y; let end_y = layout.gutter_hitbox.top() + (end_row.0 + 1) as f32 * layout.position_map.line_height - layout.position_map.scroll_pixel_position.y; let bounds = Bounds::from_corners( point(layout.gutter_hitbox.left(), start_y), point(layout.gutter_hitbox.left() + highlight_width, end_y), ); window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii)); } }); } fn paint_blamed_display_rows( &self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App, ) { let Some(blamed_display_rows) = layout.blamed_display_rows.take() else { return; }; window.paint_layer(layout.gutter_hitbox.bounds, |window| { for mut blame_element in blamed_display_rows.into_iter() { blame_element.paint(window, cx); } }) } fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) { window.with_content_mask( Some(ContentMask { bounds: layout.position_map.text_hitbox.bounds, }), |window| { let editor = self.editor.read(cx); if editor.mouse_cursor_hidden { window.set_cursor_style(CursorStyle::None, None); } else if editor .hovered_link_state .as_ref() .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty()) { window.set_cursor_style( CursorStyle::PointingHand, Some(&layout.position_map.text_hitbox), ); } else { window.set_cursor_style( CursorStyle::IBeam, Some(&layout.position_map.text_hitbox), ); }; self.paint_lines_background(layout, window, cx); let invisible_display_ranges = self.paint_highlights(layout, window); self.paint_lines(&invisible_display_ranges, layout, window, cx); self.paint_redactions(layout, window); self.paint_cursors(layout, window, cx); self.paint_inline_diagnostics(layout, window, cx); self.paint_inline_blame(layout, window, cx); self.paint_inline_code_actions(layout, window, cx); self.paint_diff_hunk_controls(layout, window, cx); window.with_element_namespace("crease_trailers", |window| { for trailer in layout.crease_trailers.iter_mut().flatten() { trailer.element.paint(window, cx); } }); }, ) } fn paint_highlights( &mut self, layout: &mut EditorLayout, window: &mut Window, ) -> SmallVec<[Range; 32]> { window.paint_layer(layout.position_map.text_hitbox.bounds, |window| { let mut invisible_display_ranges = SmallVec::<[Range; 32]>::new(); let line_end_overshoot = 0.15 * layout.position_map.line_height; for (range, color) in &layout.highlighted_ranges { self.paint_highlighted_range( range.clone(), *color, Pixels::ZERO, line_end_overshoot, layout, window, ); } let corner_radius = 0.15 * layout.position_map.line_height; for (player_color, selections) in &layout.selections { for selection in selections.iter() { self.paint_highlighted_range( selection.range.clone(), player_color.selection, corner_radius, corner_radius * 2., layout, window, ); if selection.is_local && !selection.range.is_empty() { invisible_display_ranges.push(selection.range.clone()); } } } invisible_display_ranges }) } fn paint_lines( &mut self, invisible_display_ranges: &[Range], layout: &mut EditorLayout, window: &mut Window, cx: &mut App, ) { let whitespace_setting = self .editor .read(cx) .buffer .read(cx) .language_settings(cx) .show_whitespaces; for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() { let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32); line_with_invisibles.draw( layout, row, layout.content_origin, whitespace_setting, invisible_display_ranges, window, cx, ) } for line_element in &mut layout.line_elements { line_element.paint(window, cx); } } fn paint_lines_background( &mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App, ) { for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() { let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32); line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx); } } fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) { if layout.redacted_ranges.is_empty() { return; } let line_end_overshoot = layout.line_end_overshoot(); // A softer than perfect black let redaction_color = gpui::rgb(0x0e1111); window.paint_layer(layout.position_map.text_hitbox.bounds, |window| { for range in layout.redacted_ranges.iter() { self.paint_highlighted_range( range.clone(), redaction_color.into(), Pixels::ZERO, line_end_overshoot, layout, window, ); } }); } fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) { for cursor in &mut layout.visible_cursors { cursor.paint(layout.content_origin, window, cx); } } fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) { let Some(scrollbars_layout) = layout.scrollbars_layout.take() else { return; }; for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() { let hitbox = &scrollbar_layout.hitbox; if scrollbars_layout.visible { let scrollbar_edges = match axis { ScrollbarAxis::Horizontal => Edges { top: Pixels::ZERO, right: Pixels::ZERO, bottom: Pixels::ZERO, left: Pixels::ZERO, }, ScrollbarAxis::Vertical => Edges { top: Pixels::ZERO, right: Pixels::ZERO, bottom: Pixels::ZERO, left: ScrollbarLayout::BORDER_WIDTH, }, }; window.paint_layer(hitbox.bounds, |window| { window.paint_quad(quad( hitbox.bounds, Corners::default(), cx.theme().colors().scrollbar_track_background, scrollbar_edges, cx.theme().colors().scrollbar_track_border, BorderStyle::Solid, )); if axis == ScrollbarAxis::Vertical { let fast_markers = self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx); // Refresh slow scrollbar markers in the background. Below, we // paint whatever markers have already been computed. self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx); let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone(); for marker in markers.iter().chain(&fast_markers) { let mut marker = marker.clone(); marker.bounds.origin += hitbox.origin; window.paint_quad(marker); } } if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds { let scrollbar_thumb_color = match scrollbar_layout.thumb_state { ScrollbarThumbState::Dragging => { cx.theme().colors().scrollbar_thumb_active_background } ScrollbarThumbState::Hovered => { cx.theme().colors().scrollbar_thumb_hover_background } ScrollbarThumbState::Idle => { cx.theme().colors().scrollbar_thumb_background } }; window.paint_quad(quad( thumb_bounds, Corners::default(), scrollbar_thumb_color, scrollbar_edges, cx.theme().colors().scrollbar_thumb_border, BorderStyle::Solid, )); window.set_cursor_style(CursorStyle::Arrow, Some(&hitbox)); } }) } } window.on_mouse_event({ let editor = self.editor.clone(); let scrollbars_layout = scrollbars_layout.clone(); let mut mouse_position = window.mouse_position(); move |event: &MouseMoveEvent, phase, window, cx| { if phase == DispatchPhase::Capture { return; } editor.update(cx, |editor, cx| { if let Some((scrollbar_layout, axis)) = event .pressed_button .filter(|button| *button == MouseButton::Left) .and(editor.scroll_manager.dragging_scrollbar_axis()) .and_then(|axis| { scrollbars_layout .iter_scrollbars() .find(|(_, a)| *a == axis) }) { let ScrollbarLayout { hitbox, text_unit_size, .. } = scrollbar_layout; let old_position = mouse_position.along(axis); let new_position = event.position.along(axis); if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis)) .contains(&old_position) { let position = editor.scroll_position(cx).apply_along(axis, |p| { (p + (new_position - old_position) / *text_unit_size).max(0.) }); editor.set_scroll_position(position, window, cx); } editor.scroll_manager.show_scrollbars(window, cx); cx.stop_propagation(); } else if let Some((layout, axis)) = scrollbars_layout .get_hovered_axis(window) .filter(|_| !event.dragging()) { if layout.thumb_hovered(&event.position) { editor .scroll_manager .set_hovered_scroll_thumb_axis(axis, cx); } else { editor.scroll_manager.reset_scrollbar_state(cx); } editor.scroll_manager.show_scrollbars(window, cx); } else { editor.scroll_manager.reset_scrollbar_state(cx); } mouse_position = event.position; }) } }); if self.editor.read(cx).scroll_manager.any_scrollbar_dragged() { window.on_mouse_event({ let editor = self.editor.clone(); move |_: &MouseUpEvent, phase, window, cx| { if phase == DispatchPhase::Capture { return; } editor.update(cx, |editor, cx| { if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) { editor .scroll_manager .set_hovered_scroll_thumb_axis(axis, cx); } else { editor.scroll_manager.reset_scrollbar_state(cx); } cx.stop_propagation(); }); } }); } else { window.on_mouse_event({ let editor = self.editor.clone(); move |event: &MouseDownEvent, phase, window, cx| { if phase == DispatchPhase::Capture { return; } let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window) else { return; }; let ScrollbarLayout { hitbox, visible_range, text_unit_size, thumb_bounds, .. } = scrollbar_layout; let Some(thumb_bounds) = thumb_bounds else { return; }; editor.update(cx, |editor, cx| { editor .scroll_manager .set_dragged_scroll_thumb_axis(axis, cx); let event_position = event.position.along(axis); if event_position < thumb_bounds.origin.along(axis) || thumb_bounds.bottom_right().along(axis) < event_position { let center_position = ((event_position - hitbox.origin.along(axis)) / *text_unit_size) .round() as u32; let start_position = center_position.saturating_sub( (visible_range.end - visible_range.start) as u32 / 2, ); let position = editor .scroll_position(cx) .apply_along(axis, |_| start_position as f32); editor.set_scroll_position(position, window, cx); } else { editor.scroll_manager.show_scrollbars(window, cx); } cx.stop_propagation(); }); } }); } } fn collect_fast_scrollbar_markers( &self, layout: &EditorLayout, scrollbar_layout: &ScrollbarLayout, cx: &mut App, ) -> Vec { const LIMIT: usize = 100; if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT { return vec![]; } let cursor_ranges = layout .cursors .iter() .map(|(point, color)| ColoredRange { start: point.row(), end: point.row(), color: *color, }) .collect_vec(); scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None) } fn refresh_slow_scrollbar_markers( &self, layout: &EditorLayout, scrollbar_layout: &ScrollbarLayout, window: &mut Window, cx: &mut App, ) { self.editor.update(cx, |editor, cx| { if !editor.is_singleton(cx) || !editor .scrollbar_marker_state .should_refresh(scrollbar_layout.hitbox.size) { return; } let scrollbar_layout = scrollbar_layout.clone(); let background_highlights = editor.background_highlights.clone(); let snapshot = layout.position_map.snapshot.clone(); let theme = cx.theme().clone(); let scrollbar_settings = EditorSettings::get_global(cx).scrollbar; editor.scrollbar_marker_state.dirty = false; editor.scrollbar_marker_state.pending_refresh = Some(cx.spawn_in(window, async move |editor, cx| { let scrollbar_size = scrollbar_layout.hitbox.size; let scrollbar_markers = cx .background_spawn(async move { let max_point = snapshot.display_snapshot.buffer_snapshot.max_point(); let mut marker_quads = Vec::new(); if scrollbar_settings.git_diff { let marker_row_ranges = snapshot.buffer_snapshot.diff_hunks().map(|hunk| { let start_display_row = MultiBufferPoint::new(hunk.row_range.start.0, 0) .to_display_point(&snapshot.display_snapshot) .row(); let mut end_display_row = MultiBufferPoint::new(hunk.row_range.end.0, 0) .to_display_point(&snapshot.display_snapshot) .row(); if end_display_row != start_display_row { end_display_row.0 -= 1; } let color = match &hunk.status().kind { DiffHunkStatusKind::Added => { theme.colors().version_control_added } DiffHunkStatusKind::Modified => { theme.colors().version_control_modified } DiffHunkStatusKind::Deleted => { theme.colors().version_control_deleted } }; ColoredRange { start: start_display_row, end: end_display_row, color, } }); marker_quads.extend( scrollbar_layout .marker_quads_for_ranges(marker_row_ranges, Some(0)), ); } for (background_highlight_id, (_, background_ranges)) in background_highlights.iter() { let is_search_highlights = *background_highlight_id == TypeId::of::(); let is_text_highlights = *background_highlight_id == TypeId::of::(); let is_symbol_occurrences = *background_highlight_id == TypeId::of::() || *background_highlight_id == TypeId::of::(); if (is_search_highlights && scrollbar_settings.search_results) || (is_text_highlights && scrollbar_settings.selected_text) || (is_symbol_occurrences && scrollbar_settings.selected_symbol) { let mut color = theme.status().info; if is_symbol_occurrences { color.fade_out(0.5); } let marker_row_ranges = background_ranges.iter().map(|range| { let display_start = range .start .to_display_point(&snapshot.display_snapshot); let display_end = range.end.to_display_point(&snapshot.display_snapshot); ColoredRange { start: display_start.row(), end: display_end.row(), color, } }); marker_quads.extend( scrollbar_layout .marker_quads_for_ranges(marker_row_ranges, Some(1)), ); } } if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None { let diagnostics = snapshot .buffer_snapshot .diagnostics_in_range::(Point::zero()..max_point) // Don't show diagnostics the user doesn't care about .filter(|diagnostic| { match ( scrollbar_settings.diagnostics, diagnostic.diagnostic.severity, ) { (ScrollbarDiagnostics::All, _) => true, ( ScrollbarDiagnostics::Error, lsp::DiagnosticSeverity::ERROR, ) => true, ( ScrollbarDiagnostics::Warning, lsp::DiagnosticSeverity::ERROR | lsp::DiagnosticSeverity::WARNING, ) => true, ( ScrollbarDiagnostics::Information, lsp::DiagnosticSeverity::ERROR | lsp::DiagnosticSeverity::WARNING | lsp::DiagnosticSeverity::INFORMATION, ) => true, (_, _) => false, } }) // We want to sort by severity, in order to paint the most severe diagnostics last. .sorted_by_key(|diagnostic| { std::cmp::Reverse(diagnostic.diagnostic.severity) }); let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| { let start_display = diagnostic .range .start .to_display_point(&snapshot.display_snapshot); let end_display = diagnostic .range .end .to_display_point(&snapshot.display_snapshot); let color = match diagnostic.diagnostic.severity { lsp::DiagnosticSeverity::ERROR => theme.status().error, lsp::DiagnosticSeverity::WARNING => theme.status().warning, lsp::DiagnosticSeverity::INFORMATION => theme.status().info, _ => theme.status().hint, }; ColoredRange { start: start_display.row(), end: end_display.row(), color, } }); marker_quads.extend( scrollbar_layout .marker_quads_for_ranges(marker_row_ranges, Some(2)), ); } Arc::from(marker_quads) }) .await; editor.update(cx, |editor, cx| { editor.scrollbar_marker_state.markers = scrollbar_markers; editor.scrollbar_marker_state.scrollbar_size = scrollbar_size; editor.scrollbar_marker_state.pending_refresh = None; cx.notify(); })?; Ok(()) })); }); } fn paint_highlighted_range( &self, range: Range, color: Hsla, corner_radius: Pixels, line_end_overshoot: Pixels, layout: &EditorLayout, window: &mut Window, ) { let start_row = layout.visible_display_row_range.start; let end_row = layout.visible_display_row_range.end; if range.start != range.end { let row_range = if range.end.column() == 0 { cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row) } else { cmp::max(range.start.row(), start_row) ..cmp::min(range.end.row().next_row(), end_row) }; let highlighted_range = HighlightedRange { color, line_height: layout.position_map.line_height, corner_radius, start_y: layout.content_origin.y + row_range.start.as_f32() * layout.position_map.line_height - layout.position_map.scroll_pixel_position.y, lines: row_range .iter_rows() .map(|row| { let line_layout = &layout.position_map.line_layouts[row.minus(start_row) as usize]; HighlightedRangeLine { start_x: if row == range.start.row() { layout.content_origin.x + line_layout.x_for_index(range.start.column() as usize) - layout.position_map.scroll_pixel_position.x } else { layout.content_origin.x - layout.position_map.scroll_pixel_position.x }, end_x: if row == range.end.row() { layout.content_origin.x + line_layout.x_for_index(range.end.column() as usize) - layout.position_map.scroll_pixel_position.x } else { layout.content_origin.x + line_layout.width + line_end_overshoot - layout.position_map.scroll_pixel_position.x }, } }) .collect(), }; highlighted_range.paint(layout.position_map.text_hitbox.bounds, window); } } fn paint_inline_diagnostics( &mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App, ) { for mut inline_diagnostic in layout.inline_diagnostics.drain() { inline_diagnostic.1.paint(window, cx); } } fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) { if let Some(mut inline_blame) = layout.inline_blame.take() { window.paint_layer(layout.position_map.text_hitbox.bounds, |window| { inline_blame.paint(window, cx); }) } } fn paint_inline_code_actions( &mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App, ) { if let Some(mut inline_code_actions) = layout.inline_code_actions.take() { window.paint_layer(layout.position_map.text_hitbox.bounds, |window| { inline_code_actions.paint(window, cx); }) } } fn paint_diff_hunk_controls( &mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App, ) { for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) { diff_hunk_control.paint(window, cx); } } fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) { if let Some(mut layout) = layout.minimap.take() { let minimap_hitbox = layout.thumb_layout.hitbox.clone(); window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| { window.with_element_namespace("minimap", |window| { layout.minimap.paint(window, cx); if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds { let minimap_thumb_color = match layout.thumb_layout.thumb_state { ScrollbarThumbState::Idle => { cx.theme().colors().minimap_thumb_background } ScrollbarThumbState::Hovered => { cx.theme().colors().minimap_thumb_hover_background } ScrollbarThumbState::Dragging => { cx.theme().colors().minimap_thumb_active_background } }; let minimap_thumb_border = match layout.thumb_border_style { MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH), MinimapThumbBorder::LeftOnly => Edges { left: ScrollbarLayout::BORDER_WIDTH, ..Default::default() }, MinimapThumbBorder::LeftOpen => Edges { right: ScrollbarLayout::BORDER_WIDTH, top: ScrollbarLayout::BORDER_WIDTH, bottom: ScrollbarLayout::BORDER_WIDTH, ..Default::default() }, MinimapThumbBorder::RightOpen => Edges { left: ScrollbarLayout::BORDER_WIDTH, top: ScrollbarLayout::BORDER_WIDTH, bottom: ScrollbarLayout::BORDER_WIDTH, ..Default::default() }, MinimapThumbBorder::None => Default::default(), }; window.paint_layer(minimap_hitbox.bounds, |window| { window.paint_quad(quad( thumb_bounds, Corners::default(), minimap_thumb_color, minimap_thumb_border, cx.theme().colors().minimap_thumb_border, BorderStyle::Solid, )); }); } }); }); window.set_cursor_style(CursorStyle::Arrow, Some(&minimap_hitbox)); let minimap_axis = ScrollbarAxis::Vertical; let pixels_per_line = (minimap_hitbox.size.height / layout.max_scroll_top) .min(layout.minimap_line_height); let mut mouse_position = window.mouse_position(); window.on_mouse_event({ let editor = self.editor.clone(); let minimap_hitbox = minimap_hitbox.clone(); move |event: &MouseMoveEvent, phase, window, cx| { if phase == DispatchPhase::Capture { return; } editor.update(cx, |editor, cx| { if event.pressed_button == Some(MouseButton::Left) && editor.scroll_manager.is_dragging_minimap() { let old_position = mouse_position.along(minimap_axis); let new_position = event.position.along(minimap_axis); if (minimap_hitbox.origin.along(minimap_axis) ..minimap_hitbox.bottom_right().along(minimap_axis)) .contains(&old_position) { let position = editor.scroll_position(cx).apply_along(minimap_axis, |p| { (p + (new_position - old_position) / pixels_per_line) .max(0.) }); editor.set_scroll_position(position, window, cx); } cx.stop_propagation(); } else { if minimap_hitbox.is_hovered(window) { editor.scroll_manager.set_is_hovering_minimap_thumb( !event.dragging() && layout .thumb_layout .thumb_bounds .is_some_and(|bounds| bounds.contains(&event.position)), cx, ); // Stop hover events from propagating to the // underlying editor if the minimap hitbox is hovered if !event.dragging() { cx.stop_propagation(); } } else { editor.scroll_manager.hide_minimap_thumb(cx); } } mouse_position = event.position; }); } }); if self.editor.read(cx).scroll_manager.is_dragging_minimap() { window.on_mouse_event({ let editor = self.editor.clone(); move |event: &MouseUpEvent, phase, window, cx| { if phase == DispatchPhase::Capture { return; } editor.update(cx, |editor, cx| { if minimap_hitbox.is_hovered(window) { editor.scroll_manager.set_is_hovering_minimap_thumb( layout .thumb_layout .thumb_bounds .is_some_and(|bounds| bounds.contains(&event.position)), cx, ); } else { editor.scroll_manager.hide_minimap_thumb(cx); } cx.stop_propagation(); }); } }); } else { window.on_mouse_event({ let editor = self.editor.clone(); move |event: &MouseDownEvent, phase, window, cx| { if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) { return; } let event_position = event.position; let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else { return; }; editor.update(cx, |editor, cx| { if !thumb_bounds.contains(&event_position) { let click_position = event_position.relative_to(&minimap_hitbox.origin).y; let top_position = (click_position - thumb_bounds.size.along(minimap_axis) / 2.0) .max(Pixels::ZERO); let scroll_offset = (layout.minimap_scroll_top + top_position / layout.minimap_line_height) .min(layout.max_scroll_top); let scroll_position = editor .scroll_position(cx) .apply_along(minimap_axis, |_| scroll_offset); editor.set_scroll_position(scroll_position, window, cx); } editor.scroll_manager.set_is_dragging_minimap(cx); cx.stop_propagation(); }); } }); } } } fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) { for mut block in layout.blocks.drain(..) { if block.overlaps_gutter { block.element.paint(window, cx); } else { let mut bounds = layout.hitbox.bounds; bounds.origin.x += layout.gutter_hitbox.bounds.size.width; window.with_content_mask(Some(ContentMask { bounds }), |window| { block.element.paint(window, cx); }) } } } fn paint_inline_completion_popover( &mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App, ) { if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() { inline_completion_popover.paint(window, cx); } } fn paint_mouse_context_menu( &mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App, ) { if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() { mouse_context_menu.paint(window, cx); } } fn paint_scroll_wheel_listener( &mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App, ) { window.on_mouse_event({ let position_map = layout.position_map.clone(); let editor = self.editor.clone(); let hitbox = layout.hitbox.clone(); let mut delta = ScrollDelta::default(); // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't // accidentally turn off their scrolling. let base_scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01); // Use a minimum fast_scroll_sensitivity for same reason above let fast_scroll_sensitivity = EditorSettings::get_global(cx) .fast_scroll_sensitivity .max(0.01); move |event: &ScrollWheelEvent, phase, window, cx| { let scroll_sensitivity = { if event.modifiers.alt { fast_scroll_sensitivity } else { base_scroll_sensitivity } }; if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) { delta = delta.coalesce(event.delta); editor.update(cx, |editor, cx| { let position_map: &PositionMap = &position_map; let line_height = position_map.line_height; let max_glyph_width = position_map.em_width; let (delta, axis) = match delta { gpui::ScrollDelta::Pixels(mut pixels) => { //Trackpad let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels); (pixels, axis) } gpui::ScrollDelta::Lines(lines) => { //Not trackpad let pixels = point(lines.x * max_glyph_width, lines.y * line_height); (pixels, None) } }; let current_scroll_position = position_map.snapshot.scroll_position(); let x = (current_scroll_position.x * max_glyph_width - (delta.x * scroll_sensitivity)) / max_glyph_width; let y = (current_scroll_position.y * line_height - (delta.y * scroll_sensitivity)) / line_height; let mut scroll_position = point(x, y).clamp(&point(0., 0.), &position_map.scroll_max); let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll(); if forbid_vertical_scroll { scroll_position.y = current_scroll_position.y; } if scroll_position != current_scroll_position { editor.scroll(scroll_position, axis, window, cx); cx.stop_propagation(); } else if y < 0. { // Due to clamping, we may fail to detect cases of overscroll to the top; // We want the scroll manager to get an update in such cases and detect the change of direction // on the next frame. cx.notify(); } }); } } }); } fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) { if self.editor.read(cx).mode.is_minimap() { return; } self.paint_scroll_wheel_listener(layout, window, cx); window.on_mouse_event({ let position_map = layout.position_map.clone(); let editor = self.editor.clone(); let diff_hunk_range = layout .display_hunks .iter() .find_map(|(hunk, hunk_hitbox)| match hunk { DisplayDiffHunk::Folded { .. } => None, DisplayDiffHunk::Unfolded { multi_buffer_range, .. } => { if hunk_hitbox .as_ref() .map(|hitbox| hitbox.is_hovered(window)) .unwrap_or(false) { Some(multi_buffer_range.clone()) } else { None } } }); let line_numbers = layout.line_numbers.clone(); move |event: &MouseDownEvent, phase, window, cx| { if phase == DispatchPhase::Bubble { match event.button { MouseButton::Left => editor.update(cx, |editor, cx| { let pending_mouse_down = editor .pending_mouse_down .get_or_insert_with(Default::default) .clone(); *pending_mouse_down.borrow_mut() = Some(event.clone()); Self::mouse_left_down( editor, event, diff_hunk_range.clone(), &position_map, line_numbers.as_ref(), window, cx, ); }), MouseButton::Right => editor.update(cx, |editor, cx| { Self::mouse_right_down(editor, event, &position_map, window, cx); }), MouseButton::Middle => editor.update(cx, |editor, cx| { Self::mouse_middle_down(editor, event, &position_map, window, cx); }), _ => {} }; } } }); window.on_mouse_event({ let editor = self.editor.clone(); let position_map = layout.position_map.clone(); move |event: &MouseUpEvent, phase, window, cx| { if phase == DispatchPhase::Bubble { editor.update(cx, |editor, cx| { Self::mouse_up(editor, event, &position_map, window, cx) }); } } }); window.on_mouse_event({ let editor = self.editor.clone(); let position_map = layout.position_map.clone(); let mut captured_mouse_down = None; move |event: &MouseUpEvent, phase, window, cx| match phase { // Clear the pending mouse down during the capture phase, // so that it happens even if another event handler stops // propagation. DispatchPhase::Capture => editor.update(cx, |editor, _cx| { let pending_mouse_down = editor .pending_mouse_down .get_or_insert_with(Default::default) .clone(); let mut pending_mouse_down = pending_mouse_down.borrow_mut(); if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) { captured_mouse_down = pending_mouse_down.take(); window.refresh(); } }), // Fire click handlers during the bubble phase. DispatchPhase::Bubble => editor.update(cx, |editor, cx| { if let Some(mouse_down) = captured_mouse_down.take() { let event = ClickEvent { down: mouse_down, up: event.clone(), }; Self::click(editor, &event, &position_map, window, cx); } }), } }); window.on_mouse_event({ let position_map = layout.position_map.clone(); let editor = self.editor.clone(); move |event: &MouseMoveEvent, phase, window, cx| { if phase == DispatchPhase::Bubble { editor.update(cx, |editor, cx| { if editor.hover_state.focused(window, cx) { return; } if event.pressed_button == Some(MouseButton::Left) || event.pressed_button == Some(MouseButton::Middle) { Self::mouse_dragged(editor, event, &position_map, window, cx) } Self::mouse_moved(editor, event, &position_map, window, cx) }); } } }); } fn scrollbar_left(&self, bounds: &Bounds) -> Pixels { bounds.top_right().x - self.style.scrollbar_width } fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels { let style = &self.style; let font_size = style.text.font_size.to_pixels(window.rem_size()); let layout = window.text_system().shape_line( SharedString::from(" ".repeat(column)), font_size, &[TextRun { len: column, font: style.text.font(), color: Hsla::default(), background_color: None, underline: None, strikethrough: None, }], ); layout.width } fn max_line_number_width( &self, snapshot: &EditorSnapshot, window: &mut Window, cx: &mut App, ) -> Pixels { let digit_count = snapshot.widest_line_number().ilog10() + 1; self.column_pixels(digit_count as usize, window, cx) } fn shape_line_number( &self, text: SharedString, color: Hsla, window: &mut Window, ) -> ShapedLine { let run = TextRun { len: text.len(), font: self.style.text.font(), color, background_color: None, underline: None, strikethrough: None, }; window.text_system().shape_line( text, self.style.text.font_size.to_pixels(window.rem_size()), &[run], ) } fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool { let unstaged = status.has_secondary_hunk(); let unstaged_hollow = ProjectSettings::get_global(cx) .git .hunk_style .map_or(false, |style| { matches!(style, GitHunkStyleSetting::UnstagedHollow) }); unstaged == unstaged_hollow } } fn header_jump_data( snapshot: &EditorSnapshot, block_row_start: DisplayRow, height: u32, for_excerpt: &ExcerptInfo, ) -> JumpData { let range = &for_excerpt.range; let buffer = &for_excerpt.buffer; let jump_anchor = range.primary.start; let excerpt_start = range.context.start; let jump_position = language::ToPoint::to_point(&jump_anchor, buffer); let rows_from_excerpt_start = if jump_anchor == excerpt_start { 0 } else { let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer); jump_position.row.saturating_sub(excerpt_start_point.row) }; let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start) .saturating_sub( snapshot .scroll_anchor .scroll_position(&snapshot.display_snapshot) .y as u32, ); JumpData::MultiBufferPoint { excerpt_id: for_excerpt.id, anchor: jump_anchor, position: jump_position, line_offset_from_top, } } pub struct AcceptEditPredictionBinding(pub(crate) Option); impl AcceptEditPredictionBinding { pub fn keystroke(&self) -> Option<&Keystroke> { if let Some(binding) = self.0.as_ref() { match &binding.keystrokes() { [keystroke] => Some(keystroke), _ => None, } } else { None } } } fn prepaint_gutter_button( button: IconButton, row: DisplayRow, line_height: Pixels, gutter_dimensions: &GutterDimensions, scroll_pixel_position: gpui::Point, gutter_hitbox: &Hitbox, display_hunks: &[(DisplayDiffHunk, Option)], window: &mut Window, cx: &mut App, ) -> AnyElement { let mut button = button.into_any_element(); let available_space = size( AvailableSpace::MinContent, AvailableSpace::Definite(line_height), ); let indicator_size = button.layout_as_root(available_space, window, cx); let blame_width = gutter_dimensions.git_blame_entries_width; let gutter_width = display_hunks .binary_search_by(|(hunk, _)| match hunk { DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row), DisplayDiffHunk::Unfolded { display_row_range, .. } => { if display_row_range.end <= row { Ordering::Less } else if display_row_range.start > row { Ordering::Greater } else { Ordering::Equal } } }) .ok() .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width)); let left_offset = blame_width.max(gutter_width).unwrap_or_default(); let mut x = left_offset; let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding - indicator_size.width - left_offset; x += available_width / 2.; let mut y = row.as_f32() * line_height - scroll_pixel_position.y; y += (line_height - indicator_size.height) / 2.; button.prepaint_as_root( gutter_hitbox.origin + point(x, y), available_space, window, cx, ); button } fn render_inline_blame_entry( blame_entry: BlameEntry, style: &EditorStyle, cx: &mut App, ) -> Option { let renderer = cx.global::().0.clone(); renderer.render_inline_blame_entry(&style.text, blame_entry, cx) } fn render_blame_entry_popover( blame_entry: BlameEntry, scroll_handle: ScrollHandle, commit_message: Option, markdown: Entity, workspace: WeakEntity, blame: &Entity, window: &mut Window, cx: &mut App, ) -> Option { let renderer = cx.global::().0.clone(); let blame = blame.read(cx); let repository = blame.repository(cx)?.clone(); renderer.render_blame_entry_popover( blame_entry, scroll_handle, commit_message, markdown, repository, workspace, window, cx, ) } fn render_blame_entry( ix: usize, blame: &Entity, blame_entry: BlameEntry, style: &EditorStyle, last_used_color: &mut Option<(PlayerColor, Oid)>, editor: Entity, workspace: Entity, renderer: Arc, cx: &mut App, ) -> Option { let mut sha_color = cx .theme() .players() .color_for_participant(blame_entry.sha.into()); // If the last color we used is the same as the one we get for this line, but // the commit SHAs are different, then we try again to get a different color. match *last_used_color { Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => { let index: u32 = blame_entry.sha.into(); sha_color = cx.theme().players().color_for_participant(index + 1); } _ => {} }; last_used_color.replace((sha_color, blame_entry.sha)); let blame = blame.read(cx); let details = blame.details_for_entry(&blame_entry); let repository = blame.repository(cx)?; renderer.render_blame_entry( &style.text, blame_entry, details, repository, workspace.downgrade(), editor, ix, sha_color.cursor, cx, ) } #[derive(Debug)] pub(crate) struct LineWithInvisibles { fragments: SmallVec<[LineFragment; 1]>, invisibles: Vec, len: usize, pub(crate) width: Pixels, font_size: Pixels, } enum LineFragment { Text(ShapedLine), Element { id: FoldId, element: Option, size: Size, len: usize, }, } impl fmt::Debug for LineFragment { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { match self { LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(), LineFragment::Element { size, len, .. } => f .debug_struct("Element") .field("size", size) .field("len", len) .finish(), } } } impl LineWithInvisibles { fn from_chunks<'a>( chunks: impl Iterator>, editor_style: &EditorStyle, max_line_len: usize, max_line_count: usize, editor_mode: &EditorMode, text_width: Pixels, is_row_soft_wrapped: impl Copy + Fn(usize) -> bool, window: &mut Window, cx: &mut App, ) -> Vec { let text_style = &editor_style.text; let mut layouts = Vec::with_capacity(max_line_count); let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new(); let mut line = String::new(); let mut invisibles = Vec::new(); let mut width = Pixels::ZERO; let mut len = 0; let mut styles = Vec::new(); let mut non_whitespace_added = false; let mut row = 0; let mut line_exceeded_max_len = false; let font_size = text_style.font_size.to_pixels(window.rem_size()); let ellipsis = SharedString::from("⋯"); for highlighted_chunk in chunks.chain([HighlightedChunk { text: "\n", style: None, is_tab: false, replacement: None, }]) { if let Some(replacement) = highlighted_chunk.replacement { if !line.is_empty() { let shaped_line = window .text_system() .shape_line(line.clone().into(), font_size, &styles); width += shaped_line.width; len += shaped_line.len; fragments.push(LineFragment::Text(shaped_line)); line.clear(); styles.clear(); } match replacement { ChunkReplacement::Renderer(renderer) => { let available_width = if renderer.constrain_width { let chunk = if highlighted_chunk.text == ellipsis.as_ref() { ellipsis.clone() } else { SharedString::from(Arc::from(highlighted_chunk.text)) }; let shaped_line = window.text_system().shape_line( chunk, font_size, &[text_style.to_run(highlighted_chunk.text.len())], ); AvailableSpace::Definite(shaped_line.width) } else { AvailableSpace::MinContent }; let mut element = (renderer.render)(&mut ChunkRendererContext { context: cx, window, max_width: text_width, }); let line_height = text_style.line_height_in_pixels(window.rem_size()); let size = element.layout_as_root( size(available_width, AvailableSpace::Definite(line_height)), window, cx, ); width += size.width; len += highlighted_chunk.text.len(); fragments.push(LineFragment::Element { id: renderer.id, element: Some(element), size, len: highlighted_chunk.text.len(), }); } ChunkReplacement::Str(x) => { let text_style = if let Some(style) = highlighted_chunk.style { Cow::Owned(text_style.clone().highlight(style)) } else { Cow::Borrowed(text_style) }; let run = TextRun { len: x.len(), font: text_style.font(), color: text_style.color, background_color: text_style.background_color, underline: text_style.underline, strikethrough: text_style.strikethrough, }; let line_layout = window .text_system() .shape_line(x, font_size, &[run]) .with_len(highlighted_chunk.text.len()); width += line_layout.width; len += highlighted_chunk.text.len(); fragments.push(LineFragment::Text(line_layout)) } } } else { for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() { if ix > 0 { let shaped_line = window.text_system().shape_line( line.clone().into(), font_size, &styles, ); width += shaped_line.width; len += shaped_line.len; fragments.push(LineFragment::Text(shaped_line)); layouts.push(Self { width: mem::take(&mut width), len: mem::take(&mut len), fragments: mem::take(&mut fragments), invisibles: std::mem::take(&mut invisibles), font_size, }); line.clear(); styles.clear(); row += 1; line_exceeded_max_len = false; non_whitespace_added = false; if row == max_line_count { return layouts; } } if !line_chunk.is_empty() && !line_exceeded_max_len { let text_style = if let Some(style) = highlighted_chunk.style { Cow::Owned(text_style.clone().highlight(style)) } else { Cow::Borrowed(text_style) }; if line.len() + line_chunk.len() > max_line_len { let mut chunk_len = max_line_len - line.len(); while !line_chunk.is_char_boundary(chunk_len) { chunk_len -= 1; } line_chunk = &line_chunk[..chunk_len]; line_exceeded_max_len = true; } styles.push(TextRun { len: line_chunk.len(), font: text_style.font(), color: text_style.color, background_color: text_style.background_color, underline: text_style.underline, strikethrough: text_style.strikethrough, }); if editor_mode.is_full() { // Line wrap pads its contents with fake whitespaces, // avoid printing them let is_soft_wrapped = is_row_soft_wrapped(row); if highlighted_chunk.is_tab { if non_whitespace_added || !is_soft_wrapped { invisibles.push(Invisible::Tab { line_start_offset: line.len(), line_end_offset: line.len() + line_chunk.len(), }); } } else { invisibles.extend(line_chunk.char_indices().filter_map( |(index, c)| { let is_whitespace = c.is_whitespace(); non_whitespace_added |= !is_whitespace; if is_whitespace && (non_whitespace_added || !is_soft_wrapped) { Some(Invisible::Whitespace { line_offset: line.len() + index, }) } else { None } }, )) } } line.push_str(line_chunk); } } } } layouts } fn prepaint( &mut self, line_height: Pixels, scroll_pixel_position: gpui::Point, row: DisplayRow, content_origin: gpui::Point, line_elements: &mut SmallVec<[AnyElement; 1]>, window: &mut Window, cx: &mut App, ) { let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height); let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y); for fragment in &mut self.fragments { match fragment { LineFragment::Text(line) => { fragment_origin.x += line.width; } LineFragment::Element { element, size, .. } => { let mut element = element .take() .expect("you can't prepaint LineWithInvisibles twice"); // Center the element vertically within the line. let mut element_origin = fragment_origin; element_origin.y += (line_height - size.height) / 2.; element.prepaint_at(element_origin, window, cx); line_elements.push(element); fragment_origin.x += size.width; } } } } fn draw( &self, layout: &EditorLayout, row: DisplayRow, content_origin: gpui::Point, whitespace_setting: ShowWhitespaceSetting, selection_ranges: &[Range], window: &mut Window, cx: &mut App, ) { let line_height = layout.position_map.line_height; let line_y = line_height * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height); let mut fragment_origin = content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y); for fragment in &self.fragments { match fragment { LineFragment::Text(line) => { line.paint(fragment_origin, line_height, window, cx) .log_err(); fragment_origin.x += line.width; } LineFragment::Element { size, .. } => { fragment_origin.x += size.width; } } } self.draw_invisibles( selection_ranges, layout, content_origin, line_y, row, line_height, whitespace_setting, window, cx, ); } fn draw_background( &self, layout: &EditorLayout, row: DisplayRow, content_origin: gpui::Point, window: &mut Window, cx: &mut App, ) { let line_height = layout.position_map.line_height; let line_y = line_height * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height); let mut fragment_origin = content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y); for fragment in &self.fragments { match fragment { LineFragment::Text(line) => { line.paint_background(fragment_origin, line_height, window, cx) .log_err(); fragment_origin.x += line.width; } LineFragment::Element { size, .. } => { fragment_origin.x += size.width; } } } } fn draw_invisibles( &self, selection_ranges: &[Range], layout: &EditorLayout, content_origin: gpui::Point, line_y: Pixels, row: DisplayRow, line_height: Pixels, whitespace_setting: ShowWhitespaceSetting, window: &mut Window, cx: &mut App, ) { let extract_whitespace_info = |invisible: &Invisible| { let (token_offset, token_end_offset, invisible_symbol) = match invisible { Invisible::Tab { line_start_offset, line_end_offset, } => (*line_start_offset, *line_end_offset, &layout.tab_invisible), Invisible::Whitespace { line_offset } => { (*line_offset, line_offset + 1, &layout.space_invisible) } }; let x_offset = self.x_for_index(token_offset); let invisible_offset = (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0; let origin = content_origin + gpui::point( x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x, line_y, ); ( [token_offset, token_end_offset], Box::new(move |window: &mut Window, cx: &mut App| { invisible_symbol .paint(origin, line_height, window, cx) .log_err(); }), ) }; let invisible_iter = self.invisibles.iter().map(extract_whitespace_info); match whitespace_setting { ShowWhitespaceSetting::None => (), ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)), ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| { let invisible_point = DisplayPoint::new(row, start as u32); if !selection_ranges .iter() .any(|region| region.start <= invisible_point && invisible_point < region.end) { return; } paint(window, cx); }), // For a whitespace to be on a boundary, any of the following conditions need to be met: // - It is a tab // - It is adjacent to an edge (start or end) // - It is adjacent to a whitespace (left or right) ShowWhitespaceSetting::Boundary => { // 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 // the above cases. // Note: We zip in the original `invisibles` to check for tab equality let mut last_seen: Option<(bool, usize, Box)> = None; for (([start, end], paint), invisible) in invisible_iter.zip_eq(self.invisibles.iter()) { let should_render = match (&last_seen, invisible) { (_, Invisible::Tab { .. }) => true, (Some((_, last_end, _)), _) => *last_end == start, _ => false, }; if should_render || start == 0 || end == self.len { paint(window, cx); // Since we are scanning from the left, we will skip over the first available whitespace that is part // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed. if let Some((should_render_last, last_end, paint_last)) = last_seen { // Note that we need to make sure that the last one is actually adjacent if !should_render_last && last_end == start { paint_last(window, cx); } } } // Manually render anything within a selection let invisible_point = DisplayPoint::new(row, start as u32); if selection_ranges.iter().any(|region| { region.start <= invisible_point && invisible_point < region.end }) { paint(window, cx); } last_seen = Some((should_render, end, paint)); } } } } pub fn x_for_index(&self, index: usize) -> Pixels { let mut fragment_start_x = Pixels::ZERO; let mut fragment_start_index = 0; for fragment in &self.fragments { match fragment { LineFragment::Text(shaped_line) => { let fragment_end_index = fragment_start_index + shaped_line.len; if index < fragment_end_index { return fragment_start_x + shaped_line.x_for_index(index - fragment_start_index); } fragment_start_x += shaped_line.width; fragment_start_index = fragment_end_index; } LineFragment::Element { len, size, .. } => { let fragment_end_index = fragment_start_index + len; if index < fragment_end_index { return fragment_start_x; } fragment_start_x += size.width; fragment_start_index = fragment_end_index; } } } fragment_start_x } pub fn index_for_x(&self, x: Pixels) -> Option { let mut fragment_start_x = Pixels::ZERO; let mut fragment_start_index = 0; for fragment in &self.fragments { match fragment { LineFragment::Text(shaped_line) => { let fragment_end_x = fragment_start_x + shaped_line.width; if x < fragment_end_x { return Some( fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?, ); } fragment_start_x = fragment_end_x; fragment_start_index += shaped_line.len; } LineFragment::Element { len, size, .. } => { let fragment_end_x = fragment_start_x + size.width; if x < fragment_end_x { return Some(fragment_start_index); } fragment_start_index += len; fragment_start_x = fragment_end_x; } } } None } pub fn font_id_for_index(&self, index: usize) -> Option { let mut fragment_start_index = 0; for fragment in &self.fragments { match fragment { LineFragment::Text(shaped_line) => { let fragment_end_index = fragment_start_index + shaped_line.len; if index < fragment_end_index { return shaped_line.font_id_for_index(index - fragment_start_index); } fragment_start_index = fragment_end_index; } LineFragment::Element { len, .. } => { let fragment_end_index = fragment_start_index + len; if index < fragment_end_index { return None; } fragment_start_index = fragment_end_index; } } } None } } #[derive(Debug, Clone, Copy, PartialEq, Eq)] enum Invisible { /// A tab character /// /// A tab character is internally represented by spaces (configured by the user's tab width) /// aligned to the nearest column, so it's necessary to store the start and end offset for /// adjacency checks. Tab { line_start_offset: usize, line_end_offset: usize, }, Whitespace { line_offset: usize, }, } impl EditorElement { /// Returns the rem size to use when rendering the [`EditorElement`]. /// /// This allows UI elements to scale based on the `buffer_font_size`. fn rem_size(&self, cx: &mut App) -> Option { match self.editor.read(cx).mode { EditorMode::Full { scale_ui_elements_with_buffer_font_size: true, .. } | EditorMode::Minimap { .. } => { let buffer_font_size = self.style.text.font_size; match buffer_font_size { AbsoluteLength::Pixels(pixels) => { let rem_size_scale = { // Our default UI font size is 14px on a 16px base scale. // This means the default UI font size is 0.875rems. let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX; // We then determine the delta between a single rem and the default font // size scale. let default_font_size_delta = 1. - default_font_size_scale; // Finally, we add this delta to 1rem to get the scale factor that // should be used to scale up the UI. 1. + default_font_size_delta }; Some(pixels * rem_size_scale) } AbsoluteLength::Rems(rems) => { Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into())) } } } // We currently use single-line and auto-height editors in UI contexts, // so we don't want to scale everything with the buffer font size, as it // ends up looking off. _ => None, } } fn editor_with_selections(&self, cx: &App) -> Option> { if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() { parent.upgrade() } else { Some(self.editor.clone()) } } } impl Element for EditorElement { type RequestLayoutState = (); type PrepaintState = EditorLayout; fn id(&self) -> Option { None } fn source_location(&self) -> Option<&'static core::panic::Location<'static>> { None } fn request_layout( &mut self, _: Option<&GlobalElementId>, __inspector_id: Option<&gpui::InspectorElementId>, window: &mut Window, cx: &mut App, ) -> (gpui::LayoutId, ()) { let rem_size = self.rem_size(cx); window.with_rem_size(rem_size, |window| { self.editor.update(cx, |editor, cx| { editor.set_style(self.style.clone(), window, cx); let layout_id = match editor.mode { EditorMode::SingleLine { auto_width } => { let rem_size = window.rem_size(); let height = self.style.text.line_height_in_pixels(rem_size); if auto_width { let editor_handle = cx.entity().clone(); let style = self.style.clone(); window.request_measured_layout( Style::default(), move |_, _, window, cx| { let editor_snapshot = editor_handle .update(cx, |editor, cx| editor.snapshot(window, cx)); let line = Self::layout_lines( DisplayRow(0)..DisplayRow(1), &editor_snapshot, &style, px(f32::MAX), |_| false, // Single lines never soft wrap window, cx, ) .pop() .unwrap(); let font_id = window.text_system().resolve_font(&style.text.font()); let font_size = style.text.font_size.to_pixels(window.rem_size()); let em_width = window.text_system().em_width(font_id, font_size).unwrap(); size(line.width + em_width, height) }, ) } else { let mut style = Style::default(); style.size.height = height.into(); style.size.width = relative(1.).into(); window.request_layout(style, None, cx) } } EditorMode::AutoHeight { max_lines } => { let editor_handle = cx.entity().clone(); let max_line_number_width = self.max_line_number_width(&editor.snapshot(window, cx), window, cx); window.request_measured_layout( Style::default(), move |known_dimensions, available_space, window, cx| { editor_handle .update(cx, |editor, cx| { compute_auto_height_layout( editor, max_lines, max_line_number_width, known_dimensions, available_space.width, window, cx, ) }) .unwrap_or_default() }, ) } EditorMode::Minimap { .. } => { let mut style = Style::default(); style.size.width = relative(1.).into(); style.size.height = relative(1.).into(); window.request_layout(style, None, cx) } EditorMode::Full { sized_by_content, .. } => { let mut style = Style::default(); style.size.width = relative(1.).into(); if sized_by_content { let snapshot = editor.snapshot(window, cx); let line_height = self.style.text.line_height_in_pixels(window.rem_size()); let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height; style.size.height = scroll_height.into(); } else { style.size.height = relative(1.).into(); } window.request_layout(style, None, cx) } }; (layout_id, ()) }) }) } fn prepaint( &mut self, _: Option<&GlobalElementId>, _inspector_id: Option<&gpui::InspectorElementId>, bounds: Bounds, _: &mut Self::RequestLayoutState, window: &mut Window, cx: &mut App, ) -> Self::PrepaintState { let text_style = TextStyleRefinement { font_size: Some(self.style.text.font_size), line_height: Some(self.style.text.line_height), ..Default::default() }; let focus_handle = self.editor.focus_handle(cx); window.set_view_id(self.editor.entity_id()); window.set_focus_handle(&focus_handle, cx); let rem_size = self.rem_size(cx); window.with_rem_size(rem_size, |window| { window.with_text_style(Some(text_style), |window| { window.with_content_mask(Some(ContentMask { bounds }), |window| { let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| { (editor.snapshot(window, cx), editor.read_only(cx)) }); let style = self.style.clone(); let font_id = window.text_system().resolve_font(&style.text.font()); let font_size = style.text.font_size.to_pixels(window.rem_size()); let line_height = style.text.line_height_in_pixels(window.rem_size()); let em_width = window.text_system().em_width(font_id, font_size).unwrap(); let em_advance = window.text_system().em_advance(font_id, font_size).unwrap(); let glyph_grid_cell = size(em_width, line_height); let gutter_dimensions = snapshot .gutter_dimensions( font_id, font_size, self.max_line_number_width(&snapshot, window, cx), cx, ) .or_else(|| { self.editor.read(cx).offset_content.then(|| { GutterDimensions::default_with_margin(font_id, font_size, cx) }) }) .unwrap_or_default(); let text_width = bounds.size.width - gutter_dimensions.width; let settings = EditorSettings::get_global(cx); let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never; let vertical_scrollbar_width = (scrollbars_shown && settings.scrollbar.axes.vertical && self.editor.read(cx).show_scrollbars.vertical) .then_some(style.scrollbar_width) .unwrap_or_default(); let minimap_width = self .editor .read(cx) .minimap() .is_some() .then(|| match settings.minimap.show { ShowMinimap::Auto => { scrollbars_shown.then_some(MinimapLayout::MINIMAP_WIDTH) } _ => Some(MinimapLayout::MINIMAP_WIDTH), }) .flatten() .filter(|minimap_width| { text_width - vertical_scrollbar_width - *minimap_width > *minimap_width }) .unwrap_or_default(); let right_margin = minimap_width + vertical_scrollbar_width; let editor_width = text_width - gutter_dimensions.margin - 2 * em_width - right_margin; let editor_margins = EditorMargins { gutter: gutter_dimensions, right: right_margin, }; // Offset the content_bounds from the text_bounds by the gutter margin (which // is roughly half a character wide) to make hit testing work more like how we want. let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO); let editor_content_width = editor_width - content_offset.x; snapshot = self.editor.update(cx, |editor, cx| { editor.last_bounds = Some(bounds); editor.gutter_dimensions = gutter_dimensions; editor.set_visible_line_count(bounds.size.height / line_height, window, cx); if matches!( editor.mode, EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. } ) { snapshot } else { let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil(); let wrap_width = match editor.soft_wrap_mode(cx) { SoftWrap::GitDiff => None, SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)), SoftWrap::EditorWidth => Some(editor_content_width), SoftWrap::Column(column) => Some(wrap_width_for(column)), SoftWrap::Bounded(column) => { Some(editor_content_width.min(wrap_width_for(column))) } }; if editor.set_wrap_width(wrap_width, cx) { editor.snapshot(window, cx) } else { snapshot } } }); let wrap_guides = self .editor .read(cx) .wrap_guides(cx) .iter() .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active)) .collect::>(); let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal); let gutter_hitbox = window.insert_hitbox( gutter_bounds(bounds, gutter_dimensions), HitboxBehavior::Normal, ); let text_hitbox = window.insert_hitbox( Bounds { origin: gutter_hitbox.top_right(), size: size(text_width, bounds.size.height), }, HitboxBehavior::Normal, ); let content_origin = text_hitbox.origin + content_offset; let editor_text_bounds = Bounds::from_corners(content_origin, bounds.bottom_right()); let height_in_lines = editor_text_bounds.size.height / line_height; let max_row = snapshot.max_point().row().as_f32(); // The max scroll position for the top of the window let max_scroll_top = if matches!( snapshot.mode, EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } | EditorMode::Full { sized_by_content: true, .. } ) { (max_row - height_in_lines + 1.).max(0.) } else { let settings = EditorSettings::get_global(cx); match settings.scroll_beyond_last_line { ScrollBeyondLastLine::OnePage => max_row, ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.), ScrollBeyondLastLine::VerticalScrollMargin => { (max_row - height_in_lines + 1. + settings.vertical_scroll_margin) .max(0.) } } }; // TODO: Autoscrolling for both axes let mut autoscroll_request = None; let mut autoscroll_containing_element = false; let mut autoscroll_horizontally = false; self.editor.update(cx, |editor, cx| { autoscroll_request = editor.autoscroll_request(); autoscroll_containing_element = autoscroll_request.is_some() || editor.has_pending_selection(); // TODO: Is this horizontal or vertical?! autoscroll_horizontally = editor.autoscroll_vertically( bounds, line_height, max_scroll_top, window, cx, ); snapshot = editor.snapshot(window, cx); }); let mut scroll_position = snapshot.scroll_position(); // The scroll position is a fractional point, the whole number of which represents // the top of the window in terms of display rows. let start_row = DisplayRow(scroll_position.y as u32); let max_row = snapshot.max_point().row(); let end_row = cmp::min( (scroll_position.y + height_in_lines).ceil() as u32, max_row.next_row().0, ); let end_row = DisplayRow(end_row); let row_infos = snapshot .row_infos(start_row) .take((start_row..end_row).len()) .collect::>(); let is_row_soft_wrapped = |row: usize| { row_infos .get(row) .map_or(true, |info| info.buffer_row.is_none()) }; let start_anchor = if start_row == Default::default() { Anchor::min() } else { snapshot.buffer_snapshot.anchor_before( DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left), ) }; let end_anchor = if end_row > max_row { Anchor::max() } else { snapshot.buffer_snapshot.anchor_before( DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right), ) }; let mut highlighted_rows = self .editor .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx)); let is_light = cx.theme().appearance().is_light(); for (ix, row_info) in row_infos.iter().enumerate() { let Some(diff_status) = row_info.diff_status else { continue; }; let background_color = match diff_status.kind { DiffHunkStatusKind::Added => cx.theme().colors().version_control_added, DiffHunkStatusKind::Deleted => { cx.theme().colors().version_control_deleted } DiffHunkStatusKind::Modified => { debug_panic!("modified diff status for row info"); continue; } }; let hunk_opacity = if is_light { 0.16 } else { 0.12 }; let hollow_highlight = LineHighlight { background: (background_color.opacity(if is_light { 0.08 } else { 0.06 })) .into(), border: Some(if is_light { background_color.opacity(0.48) } else { background_color.opacity(0.36) }), include_gutter: true, type_id: None, }; let filled_highlight = LineHighlight { background: solid_background(background_color.opacity(hunk_opacity)), border: None, include_gutter: true, type_id: None, }; let background = if Self::diff_hunk_hollow(diff_status, cx) { hollow_highlight } else { filled_highlight }; highlighted_rows .entry(start_row + DisplayRow(ix as u32)) .or_insert(background); } let highlighted_ranges = self .editor_with_selections(cx) .map(|editor| { editor.read(cx).background_highlights_in_range( start_anchor..end_anchor, &snapshot.display_snapshot, cx.theme().colors(), ) }) .unwrap_or_default(); let highlighted_gutter_ranges = self.editor.read(cx).gutter_highlights_in_range( start_anchor..end_anchor, &snapshot.display_snapshot, cx, ); let redacted_ranges = self.editor.read(cx).redacted_ranges( start_anchor..end_anchor, &snapshot.display_snapshot, cx, ); let (local_selections, selected_buffer_ids): ( Vec>, Vec, ) = self .editor_with_selections(cx) .map(|editor| { editor.update(cx, |editor, cx| { let all_selections = editor.selections.all::(cx); let selected_buffer_ids = if editor.is_singleton(cx) { Vec::new() } else { let mut selected_buffer_ids = Vec::with_capacity(all_selections.len()); for selection in all_selections { for buffer_id in snapshot .buffer_snapshot .buffer_ids_for_range(selection.range()) { if selected_buffer_ids.last() != Some(&buffer_id) { selected_buffer_ids.push(buffer_id); } } } selected_buffer_ids }; let mut selections = editor .selections .disjoint_in_range(start_anchor..end_anchor, cx); selections.extend(editor.selections.pending(cx)); (selections, selected_buffer_ids) }) }) .unwrap_or_default(); let (selections, mut active_rows, newest_selection_head) = self .layout_selections( start_anchor, end_anchor, &local_selections, &snapshot, start_row, end_row, window, cx, ); let mut breakpoint_rows = self.editor.update(cx, |editor, cx| { editor.active_breakpoints(start_row..end_row, window, cx) }); if cx.has_flag::() { for (display_row, (_, bp, state)) in &breakpoint_rows { if bp.is_enabled() && state.is_none_or(|s| s.verified) { active_rows.entry(*display_row).or_default().breakpoint = true; } } } let line_numbers = self.layout_line_numbers( Some(&gutter_hitbox), gutter_dimensions, line_height, scroll_position, start_row..end_row, &row_infos, &active_rows, newest_selection_head, &snapshot, window, cx, ); // We add the gutter breakpoint indicator to breakpoint_rows after painting // line numbers so we don't paint a line number debug accent color if a user // has their mouse over that line when a breakpoint isn't there if cx.has_flag::() { self.editor.update(cx, |editor, _| { if let Some(phantom_breakpoint) = &mut editor .gutter_breakpoint_indicator .0 .filter(|phantom_breakpoint| phantom_breakpoint.is_active) { // Is there a non-phantom breakpoint on this line? phantom_breakpoint.collides_with_existing_breakpoint = true; breakpoint_rows .entry(phantom_breakpoint.display_row) .or_insert_with(|| { let position = snapshot.display_point_to_anchor( DisplayPoint::new(phantom_breakpoint.display_row, 0), Bias::Right, ); let breakpoint = Breakpoint::new_standard(); phantom_breakpoint.collides_with_existing_breakpoint = false; (position, breakpoint, None) }); } }) } let mut expand_toggles = window.with_element_namespace("expand_toggles", |window| { self.layout_expand_toggles( &gutter_hitbox, gutter_dimensions, em_width, line_height, scroll_position, &row_infos, window, cx, ) }); let mut crease_toggles = window.with_element_namespace("crease_toggles", |window| { self.layout_crease_toggles( start_row..end_row, &row_infos, &active_rows, &snapshot, window, cx, ) }); let crease_trailers = window.with_element_namespace("crease_trailers", |window| { self.layout_crease_trailers( row_infos.iter().copied(), &snapshot, window, cx, ) }); let display_hunks = self.layout_gutter_diff_hunks( line_height, &gutter_hitbox, start_row..end_row, &snapshot, window, cx, ); let mut line_layouts = Self::layout_lines( start_row..end_row, &snapshot, &self.style, editor_width, is_row_soft_wrapped, window, cx, ); let new_fold_widths = line_layouts .iter() .flat_map(|layout| &layout.fragments) .filter_map(|fragment| { if let LineFragment::Element { id, size, .. } = fragment { Some((*id, size.width)) } else { None } }); if self.editor.update(cx, |editor, cx| { editor.update_fold_widths(new_fold_widths, cx) }) { // If the fold widths have changed, we need to prepaint // the element again to account for any changes in // wrapping. return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx); } let longest_line_blame_width = self .editor .update(cx, |editor, cx| { if !editor.show_git_blame_inline { return None; } let blame = editor.blame.as_ref()?; let blame_entry = blame .update(cx, |blame, cx| { let row_infos = snapshot.row_infos(snapshot.longest_row()).next()?; blame.blame_for_rows(&[row_infos], cx).next() }) .flatten()?; let mut element = render_inline_blame_entry(blame_entry, &style, cx)?; let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance; Some( element .layout_as_root(AvailableSpace::min_size(), window, cx) .width + inline_blame_padding, ) }) .unwrap_or(Pixels::ZERO); let longest_line_width = layout_line( snapshot.longest_row(), &snapshot, &style, editor_width, is_row_soft_wrapped, window, cx, ) .width; let scrollbar_layout_information = ScrollbarLayoutInformation::new( text_hitbox.bounds, glyph_grid_cell, size(longest_line_width, max_row.as_f32() * line_height), longest_line_blame_width, editor_width, EditorSettings::get_global(cx), ); let mut scroll_width = scrollbar_layout_information.scroll_range.width; let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() { snapshot.sticky_header_excerpt(scroll_position.y) } else { None }; let sticky_header_excerpt_id = sticky_header_excerpt.as_ref().map(|top| top.excerpt.id); let blocks = window.with_element_namespace("blocks", |window| { self.render_blocks( start_row..end_row, &snapshot, &hitbox, &text_hitbox, editor_width, &mut scroll_width, &editor_margins, em_width, gutter_dimensions.full_width(), line_height, &mut line_layouts, &local_selections, &selected_buffer_ids, is_row_soft_wrapped, sticky_header_excerpt_id, window, cx, ) }); let (mut blocks, row_block_types) = match blocks { Ok(blocks) => blocks, Err(resized_blocks) => { self.editor.update(cx, |editor, cx| { editor.resize_blocks(resized_blocks, autoscroll_request, cx) }); return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx); } }; let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| { window.with_element_namespace("blocks", |window| { self.layout_sticky_buffer_header( sticky_header_excerpt, scroll_position.y, line_height, right_margin, &snapshot, &hitbox, &selected_buffer_ids, &blocks, window, cx, ) }) }); let start_buffer_row = MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row); let end_buffer_row = MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row); let scroll_max = point( ((scroll_width - editor_content_width) / em_width).max(0.0), max_scroll_top, ); self.editor.update(cx, |editor, cx| { let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x); let autoscrolled = if autoscroll_horizontally { editor.autoscroll_horizontally( start_row, editor_content_width, scroll_width, em_width, &line_layouts, cx, ) } else { false }; if clamped || autoscrolled { snapshot = editor.snapshot(window, cx); scroll_position = snapshot.scroll_position(); } }); let scroll_pixel_position = point( scroll_position.x * em_width, scroll_position.y * line_height, ); let indent_guides = self.layout_indent_guides( content_origin, text_hitbox.origin, start_buffer_row..end_buffer_row, scroll_pixel_position, line_height, &snapshot, window, cx, ); let crease_trailers = window.with_element_namespace("crease_trailers", |window| { self.prepaint_crease_trailers( crease_trailers, &line_layouts, line_height, content_origin, scroll_pixel_position, em_width, window, cx, ) }); let (inline_completion_popover, inline_completion_popover_origin) = self .editor .update(cx, |editor, cx| { editor.render_edit_prediction_popover( &text_hitbox.bounds, content_origin, right_margin, &snapshot, start_row..end_row, scroll_position.y, scroll_position.y + height_in_lines, &line_layouts, line_height, scroll_pixel_position, newest_selection_head, editor_width, &style, window, cx, ) }) .unzip(); let mut inline_diagnostics = self.layout_inline_diagnostics( &line_layouts, &crease_trailers, &row_block_types, content_origin, scroll_pixel_position, inline_completion_popover_origin, start_row, end_row, line_height, em_width, &style, window, cx, ); let mut inline_blame = None; let mut inline_code_actions = None; if let Some(newest_selection_head) = newest_selection_head { let display_row = newest_selection_head.row(); if (start_row..end_row).contains(&display_row) && !row_block_types.contains_key(&display_row) { inline_code_actions = self.layout_inline_code_actions( newest_selection_head, content_origin, scroll_pixel_position, line_height, &snapshot, window, cx, ); let line_ix = display_row.minus(start_row) as usize; let row_info = &row_infos[line_ix]; let line_layout = &line_layouts[line_ix]; let crease_trailer_layout = crease_trailers[line_ix].as_ref(); inline_blame = self.layout_inline_blame( display_row, row_info, line_layout, crease_trailer_layout, em_width, content_origin, scroll_pixel_position, line_height, &text_hitbox, window, cx, ); if inline_blame.is_some() { // Blame overrides inline diagnostics inline_diagnostics.remove(&display_row); } } } let blamed_display_rows = self.layout_blame_entries( &row_infos, em_width, scroll_position, line_height, &gutter_hitbox, gutter_dimensions.git_blame_entries_width, window, cx, ); self.editor.update(cx, |editor, cx| { let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x); let autoscrolled = if autoscroll_horizontally { editor.autoscroll_horizontally( start_row, editor_content_width, scroll_width, em_width, &line_layouts, cx, ) } else { false }; if clamped || autoscrolled { snapshot = editor.snapshot(window, cx); scroll_position = snapshot.scroll_position(); } }); let line_elements = self.prepaint_lines( start_row, &mut line_layouts, line_height, scroll_pixel_position, content_origin, window, cx, ); window.with_element_namespace("blocks", |window| { self.layout_blocks( &mut blocks, &hitbox, line_height, scroll_pixel_position, window, cx, ); }); let cursors = self.collect_cursors(&snapshot, cx); let visible_row_range = start_row..end_row; let non_visible_cursors = cursors .iter() .any(|c| !visible_row_range.contains(&c.0.row())); let visible_cursors = self.layout_visible_cursors( &snapshot, &selections, &row_block_types, start_row..end_row, &line_layouts, &text_hitbox, content_origin, scroll_position, scroll_pixel_position, line_height, em_width, em_advance, autoscroll_containing_element, window, cx, ); let scrollbars_layout = self.layout_scrollbars( &snapshot, &scrollbar_layout_information, content_offset, scroll_position, non_visible_cursors, right_margin, editor_width, window, cx, ); let gutter_settings = EditorSettings::get_global(cx).gutter; let context_menu_layout = if let Some(newest_selection_head) = newest_selection_head { let newest_selection_point = newest_selection_head.to_point(&snapshot.display_snapshot); if (start_row..end_row).contains(&newest_selection_head.row()) { self.layout_cursor_popovers( line_height, &text_hitbox, content_origin, right_margin, start_row, scroll_pixel_position, &line_layouts, newest_selection_head, newest_selection_point, &style, window, cx, ) } else { None } } else { None }; self.layout_gutter_menu( line_height, &text_hitbox, content_origin, right_margin, scroll_pixel_position, gutter_dimensions.width - gutter_dimensions.left_padding, window, cx, ); let test_indicators = if gutter_settings.runnables { self.layout_run_indicators( line_height, start_row..end_row, &row_infos, scroll_pixel_position, &gutter_dimensions, &gutter_hitbox, &display_hunks, &snapshot, &mut breakpoint_rows, window, cx, ) } else { Vec::new() }; let show_breakpoints = snapshot .show_breakpoints .unwrap_or(gutter_settings.breakpoints); let breakpoints = if cx.has_flag::() && show_breakpoints { self.layout_breakpoints( line_height, start_row..end_row, scroll_pixel_position, &gutter_dimensions, &gutter_hitbox, &display_hunks, &snapshot, breakpoint_rows, &row_infos, window, cx, ) } else { vec![] }; self.layout_signature_help( &hitbox, content_origin, scroll_pixel_position, newest_selection_head, start_row, &line_layouts, line_height, em_width, context_menu_layout, window, cx, ); if !cx.has_active_drag() { self.layout_hover_popovers( &snapshot, &hitbox, start_row..end_row, content_origin, scroll_pixel_position, &line_layouts, line_height, em_width, context_menu_layout, window, cx, ); } let mouse_context_menu = self.layout_mouse_context_menu( &snapshot, start_row..end_row, content_origin, window, cx, ); window.with_element_namespace("crease_toggles", |window| { self.prepaint_crease_toggles( &mut crease_toggles, line_height, &gutter_dimensions, gutter_settings, scroll_pixel_position, &gutter_hitbox, window, cx, ) }); window.with_element_namespace("expand_toggles", |window| { self.prepaint_expand_toggles(&mut expand_toggles, window, cx) }); let minimap = window.with_element_namespace("minimap", |window| { self.layout_minimap( &snapshot, minimap_width, scroll_position, &scrollbar_layout_information, scrollbars_layout.as_ref(), window, cx, ) }); let invisible_symbol_font_size = font_size / 2.; let tab_invisible = window.text_system().shape_line( "→".into(), invisible_symbol_font_size, &[TextRun { len: "→".len(), font: self.style.text.font(), color: cx.theme().colors().editor_invisible, background_color: None, underline: None, strikethrough: None, }], ); let space_invisible = window.text_system().shape_line( "•".into(), invisible_symbol_font_size, &[TextRun { len: "•".len(), font: self.style.text.font(), color: cx.theme().colors().editor_invisible, background_color: None, underline: None, strikethrough: None, }], ); let mode = snapshot.mode.clone(); let position_map = Rc::new(PositionMap { size: bounds.size, visible_row_range, scroll_pixel_position, scroll_max, line_layouts, line_height, em_width, em_advance, snapshot, gutter_hitbox: gutter_hitbox.clone(), text_hitbox: text_hitbox.clone(), }); self.editor.update(cx, |editor, _| { editor.last_position_map = Some(position_map.clone()) }); let diff_hunk_controls = if is_read_only { vec![] } else { self.layout_diff_hunk_controls( start_row..end_row, &row_infos, &text_hitbox, &position_map, newest_selection_head, line_height, right_margin, scroll_pixel_position, &display_hunks, &highlighted_rows, self.editor.clone(), window, cx, ) }; EditorLayout { mode, position_map, visible_display_row_range: start_row..end_row, wrap_guides, indent_guides, hitbox, gutter_hitbox, display_hunks, content_origin, scrollbars_layout, minimap, active_rows, highlighted_rows, highlighted_ranges, highlighted_gutter_ranges, redacted_ranges, line_elements, line_numbers, blamed_display_rows, inline_diagnostics, inline_blame, inline_code_actions, blocks, cursors, visible_cursors, selections, inline_completion_popover, diff_hunk_controls, mouse_context_menu, test_indicators, breakpoints, crease_toggles, crease_trailers, tab_invisible, space_invisible, sticky_buffer_header, expand_toggles, } }) }) }) } fn paint( &mut self, _: Option<&GlobalElementId>, __inspector_id: Option<&gpui::InspectorElementId>, bounds: Bounds, _: &mut Self::RequestLayoutState, layout: &mut Self::PrepaintState, window: &mut Window, cx: &mut App, ) { let focus_handle = self.editor.focus_handle(cx); let key_context = self .editor .update(cx, |editor, cx| editor.key_context(window, cx)); window.set_key_context(key_context); window.handle_input( &focus_handle, ElementInputHandler::new(bounds, self.editor.clone()), cx, ); self.register_actions(window, cx); self.register_key_listeners(window, cx, layout); let text_style = TextStyleRefinement { font_size: Some(self.style.text.font_size), line_height: Some(self.style.text.line_height), ..Default::default() }; let rem_size = self.rem_size(cx); window.with_rem_size(rem_size, |window| { window.with_text_style(Some(text_style), |window| { window.with_content_mask(Some(ContentMask { bounds }), |window| { self.paint_mouse_listeners(layout, window, cx); self.paint_background(layout, window, cx); self.paint_indent_guides(layout, window, cx); if layout.gutter_hitbox.size.width > Pixels::ZERO { self.paint_blamed_display_rows(layout, window, cx); self.paint_line_numbers(layout, window, cx); } self.paint_text(layout, window, cx); if layout.gutter_hitbox.size.width > Pixels::ZERO { self.paint_gutter_highlights(layout, window, cx); self.paint_gutter_indicators(layout, window, cx); } if !layout.blocks.is_empty() { window.with_element_namespace("blocks", |window| { self.paint_blocks(layout, window, cx); }); } window.with_element_namespace("blocks", |window| { if let Some(mut sticky_header) = layout.sticky_buffer_header.take() { sticky_header.paint(window, cx) } }); self.paint_minimap(layout, window, cx); self.paint_scrollbars(layout, window, cx); self.paint_inline_completion_popover(layout, window, cx); self.paint_mouse_context_menu(layout, window, cx); }); }) }) } } pub(super) fn gutter_bounds( editor_bounds: Bounds, gutter_dimensions: GutterDimensions, ) -> Bounds { Bounds { origin: editor_bounds.origin, size: size(gutter_dimensions.width, editor_bounds.size.height), } } #[derive(Clone, Copy)] struct ContextMenuLayout { y_flipped: bool, bounds: Bounds, } /// Holds information required for layouting the editor scrollbars. struct ScrollbarLayoutInformation { /// The bounds of the editor area (excluding the content offset). editor_bounds: Bounds, /// The available range to scroll within the document. scroll_range: Size, /// The space available for one glyph in the editor. glyph_grid_cell: Size, } impl ScrollbarLayoutInformation { pub fn new( editor_bounds: Bounds, glyph_grid_cell: Size, document_size: Size, longest_line_blame_width: Pixels, editor_width: Pixels, settings: &EditorSettings, ) -> Self { let vertical_overscroll = match settings.scroll_beyond_last_line { ScrollBeyondLastLine::OnePage => editor_bounds.size.height, ScrollBeyondLastLine::Off => glyph_grid_cell.height, ScrollBeyondLastLine::VerticalScrollMargin => { (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height } }; let right_margin = if document_size.width + longest_line_blame_width >= editor_width { glyph_grid_cell.width } else { px(0.0) }; let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll); let scroll_range = document_size + overscroll; ScrollbarLayoutInformation { editor_bounds, scroll_range, glyph_grid_cell, } } } impl IntoElement for EditorElement { type Element = Self; fn into_element(self) -> Self::Element { self } } pub struct EditorLayout { position_map: Rc, hitbox: Hitbox, gutter_hitbox: Hitbox, content_origin: gpui::Point, scrollbars_layout: Option, minimap: Option, mode: EditorMode, wrap_guides: SmallVec<[(Pixels, bool); 2]>, indent_guides: Option>, visible_display_row_range: Range, active_rows: BTreeMap, highlighted_rows: BTreeMap, line_elements: SmallVec<[AnyElement; 1]>, line_numbers: Arc>, display_hunks: Vec<(DisplayDiffHunk, Option)>, blamed_display_rows: Option>, inline_diagnostics: HashMap, inline_blame: Option, inline_code_actions: Option, blocks: Vec, highlighted_ranges: Vec<(Range, Hsla)>, highlighted_gutter_ranges: Vec<(Range, Hsla)>, redacted_ranges: Vec>, cursors: Vec<(DisplayPoint, Hsla)>, visible_cursors: Vec, selections: Vec<(PlayerColor, Vec)>, test_indicators: Vec, breakpoints: Vec, crease_toggles: Vec>, expand_toggles: Vec)>>, diff_hunk_controls: Vec, crease_trailers: Vec>, inline_completion_popover: Option, mouse_context_menu: Option, tab_invisible: ShapedLine, space_invisible: ShapedLine, sticky_buffer_header: Option, } impl EditorLayout { fn line_end_overshoot(&self) -> Pixels { 0.15 * self.position_map.line_height } } struct LineNumberLayout { shaped_line: ShapedLine, hitbox: Option, } struct ColoredRange { start: T, end: T, color: Hsla, } impl Along for ScrollbarAxes { type Unit = bool; fn along(&self, axis: ScrollbarAxis) -> Self::Unit { match axis { ScrollbarAxis::Horizontal => self.horizontal, ScrollbarAxis::Vertical => self.vertical, } } fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self { match axis { ScrollbarAxis::Horizontal => ScrollbarAxes { horizontal: f(self.horizontal), vertical: self.vertical, }, ScrollbarAxis::Vertical => ScrollbarAxes { horizontal: self.horizontal, vertical: f(self.vertical), }, } } } #[derive(Clone)] struct EditorScrollbars { pub vertical: Option, pub horizontal: Option, pub visible: bool, } impl EditorScrollbars { pub fn from_scrollbar_axes( settings_visibility: ScrollbarAxes, layout_information: &ScrollbarLayoutInformation, content_offset: gpui::Point, scroll_position: gpui::Point, scrollbar_width: Pixels, right_margin: Pixels, editor_width: Pixels, show_scrollbars: bool, scrollbar_state: Option<&ActiveScrollbarState>, window: &mut Window, ) -> Self { let ScrollbarLayoutInformation { editor_bounds, scroll_range, glyph_grid_cell, } = layout_information; let viewport_size = size(editor_width, editor_bounds.size.height); let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis { ScrollbarAxis::Horizontal => Bounds::from_corner_and_size( Corner::BottomLeft, editor_bounds.bottom_left(), size( // The horizontal viewport size differs from the space available for the // horizontal scrollbar, so we have to manually stich it together here. editor_bounds.size.width - right_margin, scrollbar_width, ), ), ScrollbarAxis::Vertical => Bounds::from_corner_and_size( Corner::TopRight, editor_bounds.top_right(), size(scrollbar_width, viewport_size.height), ), }; let mut create_scrollbar_layout = |axis| { settings_visibility .along(axis) .then(|| { ( viewport_size.along(axis) - content_offset.along(axis), scroll_range.along(axis), ) }) .filter(|(viewport_size, scroll_range)| { // The scrollbar should only be rendered if the content does // not entirely fit into the editor // However, this only applies to the horizontal scrollbar, as information about the // vertical scrollbar layout is always needed for scrollbar diagnostics. axis != ScrollbarAxis::Horizontal || viewport_size < scroll_range }) .map(|(viewport_size, scroll_range)| { ScrollbarLayout::new( window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal), viewport_size, scroll_range, glyph_grid_cell.along(axis), content_offset.along(axis), scroll_position.along(axis), show_scrollbars, axis, ) .with_thumb_state( scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)), ) }) }; Self { vertical: create_scrollbar_layout(ScrollbarAxis::Vertical), horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal), visible: show_scrollbars, } } pub fn iter_scrollbars(&self) -> impl Iterator + '_ { [ (&self.vertical, ScrollbarAxis::Vertical), (&self.horizontal, ScrollbarAxis::Horizontal), ] .into_iter() .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis))) } /// Returns the currently hovered scrollbar axis, if any. pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> { self.iter_scrollbars() .find(|s| s.0.hitbox.is_hovered(window)) } } #[derive(Clone)] struct ScrollbarLayout { hitbox: Hitbox, visible_range: Range, text_unit_size: Pixels, thumb_bounds: Option>, thumb_state: ScrollbarThumbState, } impl ScrollbarLayout { const BORDER_WIDTH: Pixels = px(1.0); const LINE_MARKER_HEIGHT: Pixels = px(2.0); const MIN_MARKER_HEIGHT: Pixels = px(5.0); const MIN_THUMB_SIZE: Pixels = px(25.0); fn new( scrollbar_track_hitbox: Hitbox, viewport_size: Pixels, scroll_range: Pixels, glyph_space: Pixels, content_offset: Pixels, scroll_position: f32, show_thumb: bool, axis: ScrollbarAxis, ) -> Self { let track_bounds = scrollbar_track_hitbox.bounds; // The length of the track available to the scrollbar thumb. We deliberately // exclude the content size here so that the thumb aligns with the content. let track_length = track_bounds.size.along(axis) - content_offset; Self::new_with_hitbox_and_track_length( scrollbar_track_hitbox, track_length, viewport_size, scroll_range, glyph_space, content_offset, scroll_position, show_thumb, axis, ) } fn for_minimap( minimap_track_hitbox: Hitbox, visible_lines: f32, total_editor_lines: f32, minimap_line_height: Pixels, scroll_position: f32, minimap_scroll_top: f32, show_thumb: bool, ) -> Self { // The scrollbar thumb size is calculated as // (visible_content/total_content) × scrollbar_track_length. // // For the minimap's thumb layout, we leverage this by setting the // scrollbar track length to the entire document size (using minimap line // height). This creates a thumb that exactly represents the editor // viewport scaled to minimap proportions. // // We adjust the thumb position relative to `minimap_scroll_top` to // accommodate for the deliberately oversized track. // // This approach ensures that the minimap thumb accurately reflects the // editor's current scroll position whilst nicely synchronizing the minimap // thumb and scrollbar thumb. let scroll_range = total_editor_lines * minimap_line_height; let viewport_size = visible_lines * minimap_line_height; let track_top_offset = -minimap_scroll_top * minimap_line_height; Self::new_with_hitbox_and_track_length( minimap_track_hitbox, scroll_range, viewport_size, scroll_range, minimap_line_height, track_top_offset, scroll_position, show_thumb, ScrollbarAxis::Vertical, ) } fn new_with_hitbox_and_track_length( scrollbar_track_hitbox: Hitbox, track_length: Pixels, viewport_size: Pixels, scroll_range: Pixels, glyph_space: Pixels, content_offset: Pixels, scroll_position: f32, show_thumb: bool, axis: ScrollbarAxis, ) -> Self { let text_units_per_page = viewport_size / glyph_space; let visible_range = scroll_position..scroll_position + text_units_per_page; let total_text_units = scroll_range / glyph_space; let thumb_percentage = text_units_per_page / total_text_units; let thumb_size = (track_length * thumb_percentage) .max(ScrollbarLayout::MIN_THUMB_SIZE) .min(track_length); let text_unit_divisor = (total_text_units - text_units_per_page).max(0.); let content_larger_than_viewport = text_unit_divisor > 0.; let text_unit_size = if content_larger_than_viewport { (track_length - thumb_size) / text_unit_divisor } else { glyph_space }; let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| { Self::thumb_bounds( &scrollbar_track_hitbox, content_offset, visible_range.start, text_unit_size, thumb_size, axis, ) }); ScrollbarLayout { hitbox: scrollbar_track_hitbox, visible_range, text_unit_size, thumb_bounds, thumb_state: Default::default(), } } fn with_thumb_state(self, thumb_state: Option) -> Self { if let Some(thumb_state) = thumb_state { Self { thumb_state, ..self } } else { self } } fn thumb_bounds( scrollbar_track: &Hitbox, content_offset: Pixels, visible_range_start: f32, text_unit_size: Pixels, thumb_size: Pixels, axis: ScrollbarAxis, ) -> Bounds { let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| { origin + content_offset + visible_range_start * text_unit_size }); Bounds::new( thumb_origin, scrollbar_track.size.apply_along(axis, |_| thumb_size), ) } fn thumb_hovered(&self, position: &gpui::Point) -> bool { self.thumb_bounds .is_some_and(|bounds| bounds.contains(position)) } fn marker_quads_for_ranges( &self, row_ranges: impl IntoIterator>, column: Option, ) -> Vec { struct MinMax { min: Pixels, max: Pixels, } let (x_range, height_limit) = if let Some(column) = column { let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor()); let start = Self::BORDER_WIDTH + (column as f32 * column_width); let end = start + column_width; ( Range { start, end }, MinMax { min: Self::MIN_MARKER_HEIGHT, max: px(f32::MAX), }, ) } else { ( Range { start: Self::BORDER_WIDTH, end: self.hitbox.size.width, }, MinMax { min: Self::LINE_MARKER_HEIGHT, max: Self::LINE_MARKER_HEIGHT, }, ) }; let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size; let mut pixel_ranges = row_ranges .into_iter() .map(|range| { let start_y = row_to_y(range.start); let end_y = row_to_y(range.end) + self .text_unit_size .max(height_limit.min) .min(height_limit.max); ColoredRange { start: start_y, end: end_y, color: range.color, } }) .peekable(); let mut quads = Vec::new(); while let Some(mut pixel_range) = pixel_ranges.next() { while let Some(next_pixel_range) = pixel_ranges.peek() { if pixel_range.end >= next_pixel_range.start - px(1.0) && pixel_range.color == next_pixel_range.color { pixel_range.end = next_pixel_range.end.max(pixel_range.end); pixel_ranges.next(); } else { break; } } let bounds = Bounds::from_corners( point(x_range.start, pixel_range.start), point(x_range.end, pixel_range.end), ); quads.push(quad( bounds, Corners::default(), pixel_range.color, Edges::default(), Hsla::transparent_black(), BorderStyle::default(), )); } quads } } struct MinimapLayout { pub minimap: AnyElement, pub thumb_layout: ScrollbarLayout, pub minimap_scroll_top: f32, pub minimap_line_height: Pixels, pub thumb_border_style: MinimapThumbBorder, pub max_scroll_top: f32, } impl MinimapLayout { const MINIMAP_WIDTH: Pixels = px(100.); /// Calculates the scroll top offset the minimap editor has to have based on the /// current scroll progress. fn calculate_minimap_top_offset( document_lines: f32, visible_editor_lines: f32, visible_minimap_lines: f32, scroll_position: f32, ) -> f32 { let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.); if non_visible_document_lines == 0. { 0. } else { let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.); scroll_percentage * (document_lines - visible_minimap_lines).max(0.) } } } struct CreaseTrailerLayout { element: AnyElement, bounds: Bounds, } pub(crate) struct PositionMap { pub size: Size, pub line_height: Pixels, pub scroll_pixel_position: gpui::Point, pub scroll_max: gpui::Point, pub em_width: Pixels, pub em_advance: Pixels, pub visible_row_range: Range, pub line_layouts: Vec, pub snapshot: EditorSnapshot, pub text_hitbox: Hitbox, pub gutter_hitbox: Hitbox, } #[derive(Debug, Copy, Clone)] pub struct PointForPosition { pub previous_valid: DisplayPoint, pub next_valid: DisplayPoint, pub exact_unclipped: DisplayPoint, pub column_overshoot_after_line_end: u32, } impl PointForPosition { pub fn as_valid(&self) -> Option { if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped { Some(self.previous_valid) } else { None } } } impl PositionMap { pub(crate) fn point_for_position(&self, position: gpui::Point) -> PointForPosition { let text_bounds = self.text_hitbox.bounds; let scroll_position = self.snapshot.scroll_position(); let position = position - text_bounds.origin; let y = position.y.max(px(0.)).min(self.size.height); let x = position.x + (scroll_position.x * self.em_width); let row = ((y / self.line_height) + scroll_position.y) as u32; let (column, x_overshoot_after_line_end) = if let Some(line) = self .line_layouts .get(row as usize - scroll_position.y as usize) { if let Some(ix) = line.index_for_x(x) { (ix as u32, px(0.)) } else { (line.len as u32, px(0.).max(x - line.width)) } } else { (0, x) }; let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column); let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left); let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right); let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32; *exact_unclipped.column_mut() += column_overshoot_after_line_end; PointForPosition { previous_valid, next_valid, exact_unclipped, column_overshoot_after_line_end, } } } struct BlockLayout { id: BlockId, x_offset: Pixels, row: Option, element: AnyElement, available_space: Size, style: BlockStyle, overlaps_gutter: bool, is_buffer_header: bool, } pub fn layout_line( row: DisplayRow, snapshot: &EditorSnapshot, style: &EditorStyle, text_width: Pixels, is_row_soft_wrapped: impl Copy + Fn(usize) -> bool, window: &mut Window, cx: &mut App, ) -> LineWithInvisibles { let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style); LineWithInvisibles::from_chunks( chunks, &style, MAX_LINE_LEN, 1, &snapshot.mode, text_width, is_row_soft_wrapped, window, cx, ) .pop() .unwrap() } #[derive(Debug)] pub struct IndentGuideLayout { origin: gpui::Point, length: Pixels, single_indent_width: Pixels, depth: u32, active: bool, settings: IndentGuideSettings, } pub struct CursorLayout { origin: gpui::Point, block_width: Pixels, line_height: Pixels, color: Hsla, shape: CursorShape, block_text: Option, cursor_name: Option, } #[derive(Debug)] pub struct CursorName { string: SharedString, color: Hsla, is_top_row: bool, } impl CursorLayout { pub fn new( origin: gpui::Point, block_width: Pixels, line_height: Pixels, color: Hsla, shape: CursorShape, block_text: Option, ) -> CursorLayout { CursorLayout { origin, block_width, line_height, color, shape, block_text, cursor_name: None, } } pub fn bounding_rect(&self, origin: gpui::Point) -> Bounds { Bounds { origin: self.origin + origin, size: size(self.block_width, self.line_height), } } fn bounds(&self, origin: gpui::Point) -> Bounds { match self.shape { CursorShape::Bar => Bounds { origin: self.origin + origin, size: size(px(2.0), self.line_height), }, CursorShape::Block | CursorShape::Hollow => Bounds { origin: self.origin + origin, size: size(self.block_width, self.line_height), }, CursorShape::Underline => Bounds { origin: self.origin + origin + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)), size: size(self.block_width, px(2.0)), }, } } pub fn layout( &mut self, origin: gpui::Point, cursor_name: Option, window: &mut Window, cx: &mut App, ) { if let Some(cursor_name) = cursor_name { let bounds = self.bounds(origin); let text_size = self.line_height / 1.5; let name_origin = if cursor_name.is_top_row { point(bounds.right() - px(1.), bounds.top()) } else { match self.shape { CursorShape::Bar => point( bounds.right() - px(2.), bounds.top() - text_size / 2. - px(1.), ), _ => point( bounds.right() - px(1.), bounds.top() - text_size / 2. - px(1.), ), } }; let mut name_element = div() .bg(self.color) .text_size(text_size) .px_0p5() .line_height(text_size + px(2.)) .text_color(cursor_name.color) .child(cursor_name.string.clone()) .into_any_element(); name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx); self.cursor_name = Some(name_element); } } pub fn paint(&mut self, origin: gpui::Point, window: &mut Window, cx: &mut App) { let bounds = self.bounds(origin); //Draw background or border quad let cursor = if matches!(self.shape, CursorShape::Hollow) { outline(bounds, self.color, BorderStyle::Solid) } else { fill(bounds, self.color) }; if let Some(name) = &mut self.cursor_name { name.paint(window, cx); } window.paint_quad(cursor); if let Some(block_text) = &self.block_text { block_text .paint(self.origin + origin, self.line_height, window, cx) .log_err(); } } pub fn shape(&self) -> CursorShape { self.shape } } #[derive(Debug)] pub struct HighlightedRange { pub start_y: Pixels, pub line_height: Pixels, pub lines: Vec, pub color: Hsla, pub corner_radius: Pixels, } #[derive(Debug)] pub struct HighlightedRangeLine { pub start_x: Pixels, pub end_x: Pixels, } impl HighlightedRange { pub fn paint(&self, bounds: Bounds, window: &mut Window) { if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x { self.paint_lines(self.start_y, &self.lines[0..1], bounds, window); self.paint_lines( self.start_y + self.line_height, &self.lines[1..], bounds, window, ); } else { self.paint_lines(self.start_y, &self.lines, bounds, window); } } fn paint_lines( &self, start_y: Pixels, lines: &[HighlightedRangeLine], _bounds: Bounds, window: &mut Window, ) { if lines.is_empty() { return; } let first_line = lines.first().unwrap(); let last_line = lines.last().unwrap(); let first_top_left = point(first_line.start_x, start_y); let first_top_right = point(first_line.end_x, start_y); let curve_height = point(Pixels::ZERO, self.corner_radius); let curve_width = |start_x: Pixels, end_x: Pixels| { let max = (end_x - start_x) / 2.; let width = if max < self.corner_radius { max } else { self.corner_radius }; point(width, Pixels::ZERO) }; let top_curve_width = curve_width(first_line.start_x, first_line.end_x); let mut builder = gpui::PathBuilder::fill(); builder.move_to(first_top_right - top_curve_width); builder.curve_to(first_top_right + curve_height, first_top_right); let mut iter = lines.iter().enumerate().peekable(); while let Some((ix, line)) = iter.next() { let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height); if let Some((_, next_line)) = iter.peek() { let next_top_right = point(next_line.end_x, bottom_right.y); match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() { Ordering::Equal => { builder.line_to(bottom_right); } Ordering::Less => { let curve_width = curve_width(next_top_right.x, bottom_right.x); builder.line_to(bottom_right - curve_height); if self.corner_radius > Pixels::ZERO { builder.curve_to(bottom_right - curve_width, bottom_right); } builder.line_to(next_top_right + curve_width); if self.corner_radius > Pixels::ZERO { builder.curve_to(next_top_right + curve_height, next_top_right); } } Ordering::Greater => { let curve_width = curve_width(bottom_right.x, next_top_right.x); builder.line_to(bottom_right - curve_height); if self.corner_radius > Pixels::ZERO { builder.curve_to(bottom_right + curve_width, bottom_right); } builder.line_to(next_top_right - curve_width); if self.corner_radius > Pixels::ZERO { builder.curve_to(next_top_right + curve_height, next_top_right); } } } } else { let curve_width = curve_width(line.start_x, line.end_x); builder.line_to(bottom_right - curve_height); if self.corner_radius > Pixels::ZERO { builder.curve_to(bottom_right - curve_width, bottom_right); } let bottom_left = point(line.start_x, bottom_right.y); builder.line_to(bottom_left + curve_width); if self.corner_radius > Pixels::ZERO { builder.curve_to(bottom_left - curve_height, bottom_left); } } } if first_line.start_x > last_line.start_x { let curve_width = curve_width(last_line.start_x, first_line.start_x); let second_top_left = point(last_line.start_x, start_y + self.line_height); builder.line_to(second_top_left + curve_height); if self.corner_radius > Pixels::ZERO { builder.curve_to(second_top_left + curve_width, second_top_left); } let first_bottom_left = point(first_line.start_x, second_top_left.y); builder.line_to(first_bottom_left - curve_width); if self.corner_radius > Pixels::ZERO { builder.curve_to(first_bottom_left - curve_height, first_bottom_left); } } builder.line_to(first_top_left + curve_height); if self.corner_radius > Pixels::ZERO { builder.curve_to(first_top_left + top_curve_width, first_top_left); } builder.line_to(first_top_right - top_curve_width); if let Ok(path) = builder.build() { window.paint_path(path, self.color); } } } enum CursorPopoverType { CodeContextMenu, EditPrediction, } pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 { (delta.pow(1.2) / 100.0).min(px(3.0)).into() } fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 { (delta.pow(1.2) / 300.0).into() } pub fn register_action( editor: &Entity, window: &mut Window, listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context) + 'static, ) { let editor = editor.clone(); window.on_action(TypeId::of::(), move |action, phase, window, cx| { let action = action.downcast_ref().unwrap(); if phase == DispatchPhase::Bubble { editor.update(cx, |editor, cx| { listener(editor, action, window, cx); }) } }) } fn compute_auto_height_layout( editor: &mut Editor, max_lines: usize, max_line_number_width: Pixels, known_dimensions: Size>, available_width: AvailableSpace, window: &mut Window, cx: &mut Context, ) -> Option> { let width = known_dimensions.width.or({ if let AvailableSpace::Definite(available_width) = available_width { Some(available_width) } else { None } })?; if let Some(height) = known_dimensions.height { return Some(size(width, height)); } let style = editor.style.as_ref().unwrap(); let font_id = window.text_system().resolve_font(&style.text.font()); let font_size = style.text.font_size.to_pixels(window.rem_size()); let line_height = style.text.line_height_in_pixels(window.rem_size()); let em_width = window.text_system().em_width(font_id, font_size).unwrap(); let mut snapshot = editor.snapshot(window, cx); let gutter_dimensions = snapshot .gutter_dimensions(font_id, font_size, max_line_number_width, cx) .or_else(|| { editor .offset_content .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx)) }) .unwrap_or_default(); editor.gutter_dimensions = gutter_dimensions; let text_width = width - gutter_dimensions.width; let overscroll = size(em_width, px(0.)); let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width; if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None) { if editor.set_wrap_width(Some(editor_width), cx) { snapshot = editor.snapshot(window, cx); } } let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height; let height = scroll_height .max(line_height) .min(line_height * max_lines as f32); Some(size(width, height)) } #[cfg(test)] mod tests { use super::*; use crate::{ Editor, MultiBuffer, display_map::{BlockPlacement, BlockProperties}, editor_tests::{init_test, update_test_language_settings}, }; use gpui::{TestAppContext, VisualTestContext}; use language::language_settings; use log::info; use std::num::NonZeroU32; use util::test::sample_text; #[gpui::test] fn test_shape_line_numbers(cx: &mut TestAppContext) { init_test(cx, |_| {}); let window = cx.add_window(|window, cx| { let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx); Editor::new(EditorMode::full(), buffer, None, window, cx) }); let editor = window.root(cx).unwrap(); let style = cx.update(|cx| editor.read(cx).style().unwrap().clone()); let line_height = window .update(cx, |_, window, _| { style.text.line_height_in_pixels(window.rem_size()) }) .unwrap(); let element = EditorElement::new(&editor, style); let snapshot = window .update(cx, |editor, window, cx| editor.snapshot(window, cx)) .unwrap(); let layouts = cx .update_window(*window, |_, window, cx| { element.layout_line_numbers( None, GutterDimensions { left_padding: Pixels::ZERO, right_padding: Pixels::ZERO, width: px(30.0), margin: Pixels::ZERO, git_blame_entries_width: None, }, line_height, gpui::Point::default(), DisplayRow(0)..DisplayRow(6), &(0..6) .map(|row| RowInfo { buffer_row: Some(row), ..Default::default() }) .collect::>(), &BTreeMap::default(), Some(DisplayPoint::new(DisplayRow(0), 0)), &snapshot, window, cx, ) }) .unwrap(); assert_eq!(layouts.len(), 6); let relative_rows = window .update(cx, |editor, window, cx| { let snapshot = editor.snapshot(window, cx); element.calculate_relative_line_numbers( &snapshot, &(DisplayRow(0)..DisplayRow(6)), Some(DisplayRow(3)), ) }) .unwrap(); assert_eq!(relative_rows[&DisplayRow(0)], 3); assert_eq!(relative_rows[&DisplayRow(1)], 2); assert_eq!(relative_rows[&DisplayRow(2)], 1); // current line has no relative number assert_eq!(relative_rows[&DisplayRow(4)], 1); assert_eq!(relative_rows[&DisplayRow(5)], 2); // works if cursor is before screen let relative_rows = window .update(cx, |editor, window, cx| { let snapshot = editor.snapshot(window, cx); element.calculate_relative_line_numbers( &snapshot, &(DisplayRow(3)..DisplayRow(6)), Some(DisplayRow(1)), ) }) .unwrap(); assert_eq!(relative_rows.len(), 3); assert_eq!(relative_rows[&DisplayRow(3)], 2); assert_eq!(relative_rows[&DisplayRow(4)], 3); assert_eq!(relative_rows[&DisplayRow(5)], 4); // works if cursor is after screen let relative_rows = window .update(cx, |editor, window, cx| { let snapshot = editor.snapshot(window, cx); element.calculate_relative_line_numbers( &snapshot, &(DisplayRow(0)..DisplayRow(3)), Some(DisplayRow(6)), ) }) .unwrap(); assert_eq!(relative_rows.len(), 3); assert_eq!(relative_rows[&DisplayRow(0)], 5); assert_eq!(relative_rows[&DisplayRow(1)], 4); assert_eq!(relative_rows[&DisplayRow(2)], 3); } #[gpui::test] async fn test_vim_visual_selections(cx: &mut TestAppContext) { init_test(cx, |_| {}); let window = cx.add_window(|window, cx| { let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx); Editor::new(EditorMode::full(), buffer, None, window, cx) }); let cx = &mut VisualTestContext::from_window(*window, cx); let editor = window.root(cx).unwrap(); let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone()); window .update(cx, |editor, window, cx| { editor.cursor_shape = CursorShape::Block; editor.change_selections(None, window, cx, |s| { s.select_ranges([ Point::new(0, 0)..Point::new(1, 0), Point::new(3, 2)..Point::new(3, 3), Point::new(5, 6)..Point::new(6, 0), ]); }); }) .unwrap(); let (_, state) = cx.draw( point(px(500.), px(500.)), size(px(500.), px(500.)), |_, _| EditorElement::new(&editor, style), ); assert_eq!(state.selections.len(), 1); let local_selections = &state.selections[0].1; assert_eq!(local_selections.len(), 3); // moves cursor back one line assert_eq!( local_selections[0].head, DisplayPoint::new(DisplayRow(0), 6) ); assert_eq!( local_selections[0].range, DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0) ); // moves cursor back one column assert_eq!( local_selections[1].range, DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3) ); assert_eq!( local_selections[1].head, DisplayPoint::new(DisplayRow(3), 2) ); // leaves cursor on the max point assert_eq!( local_selections[2].range, DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0) ); assert_eq!( local_selections[2].head, DisplayPoint::new(DisplayRow(6), 0) ); // active lines does not include 1 (even though the range of the selection does) assert_eq!( state.active_rows.keys().cloned().collect::>(), vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)] ); } #[gpui::test] fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) { init_test(cx, |_| {}); let window = cx.add_window(|window, cx| { let buffer = MultiBuffer::build_simple("", cx); Editor::new(EditorMode::full(), buffer, None, window, cx) }); let cx = &mut VisualTestContext::from_window(*window, cx); let editor = window.root(cx).unwrap(); let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone()); window .update(cx, |editor, window, cx| { editor.set_placeholder_text("hello", cx); editor.insert_blocks( [BlockProperties { style: BlockStyle::Fixed, placement: BlockPlacement::Above(Anchor::min()), height: Some(3), render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()), priority: 0, render_in_minimap: true, }], None, cx, ); // Blur the editor so that it displays placeholder text. window.blur(); }) .unwrap(); let (_, state) = cx.draw( point(px(500.), px(500.)), size(px(500.), px(500.)), |_, _| EditorElement::new(&editor, style), ); assert_eq!(state.position_map.line_layouts.len(), 4); assert_eq!(state.line_numbers.len(), 1); assert_eq!( state .line_numbers .get(&MultiBufferRow(0)) .map(|line_number| line_number.shaped_line.text.as_ref()), Some("1") ); } #[gpui::test] fn test_all_invisibles_drawing(cx: &mut TestAppContext) { const TAB_SIZE: u32 = 4; let input_text = "\t \t|\t| a b"; let expected_invisibles = vec![ Invisible::Tab { line_start_offset: 0, line_end_offset: TAB_SIZE as usize, }, Invisible::Whitespace { line_offset: TAB_SIZE as usize, }, Invisible::Tab { line_start_offset: TAB_SIZE as usize + 1, line_end_offset: TAB_SIZE as usize * 2, }, Invisible::Tab { line_start_offset: TAB_SIZE as usize * 2 + 1, line_end_offset: TAB_SIZE as usize * 3, }, Invisible::Whitespace { line_offset: TAB_SIZE as usize * 3 + 1, }, Invisible::Whitespace { line_offset: TAB_SIZE as usize * 3 + 3, }, ]; assert_eq!( expected_invisibles.len(), input_text .chars() .filter(|initial_char| initial_char.is_whitespace()) .count(), "Hardcoded expected invisibles differ from the actual ones in '{input_text}'" ); for show_line_numbers in [true, false] { init_test(cx, |s| { s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All); s.defaults.tab_size = NonZeroU32::new(TAB_SIZE); }); let actual_invisibles = collect_invisibles_from_new_editor( cx, EditorMode::full(), input_text, px(500.0), show_line_numbers, ); assert_eq!(expected_invisibles, actual_invisibles); } } #[gpui::test] fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) { init_test(cx, |s| { s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All); s.defaults.tab_size = NonZeroU32::new(4); }); for editor_mode_without_invisibles in [ EditorMode::SingleLine { auto_width: false }, EditorMode::AutoHeight { max_lines: 100 }, ] { for show_line_numbers in [true, false] { let invisibles = collect_invisibles_from_new_editor( cx, editor_mode_without_invisibles.clone(), "\t\t\t| | a b", px(500.0), show_line_numbers, ); assert!( invisibles.is_empty(), "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}" ); } } } #[gpui::test] fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) { let tab_size = 4; let input_text = "a\tbcd ".repeat(9); let repeated_invisibles = [ Invisible::Tab { line_start_offset: 1, line_end_offset: tab_size as usize, }, Invisible::Whitespace { line_offset: tab_size as usize + 3, }, Invisible::Whitespace { line_offset: tab_size as usize + 4, }, Invisible::Whitespace { line_offset: tab_size as usize + 5, }, Invisible::Whitespace { line_offset: tab_size as usize + 6, }, Invisible::Whitespace { line_offset: tab_size as usize + 7, }, ]; let expected_invisibles = std::iter::once(repeated_invisibles) .cycle() .take(9) .flatten() .collect::>(); assert_eq!( expected_invisibles.len(), input_text .chars() .filter(|initial_char| initial_char.is_whitespace()) .count(), "Hardcoded expected invisibles differ from the actual ones in '{input_text}'" ); info!("Expected invisibles: {expected_invisibles:?}"); init_test(cx, |_| {}); // Put the same string with repeating whitespace pattern into editors of various size, // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point. let resize_step = 10.0; let mut editor_width = 200.0; while editor_width <= 1000.0 { for show_line_numbers in [true, false] { update_test_language_settings(cx, |s| { s.defaults.tab_size = NonZeroU32::new(tab_size); s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All); s.defaults.preferred_line_length = Some(editor_width as u32); s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength); }); let actual_invisibles = collect_invisibles_from_new_editor( cx, EditorMode::full(), &input_text, px(editor_width), show_line_numbers, ); // Whatever the editor size is, ensure it has the same invisible kinds in the same order // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets). let mut i = 0; for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() { i = actual_index; match expected_invisibles.get(i) { Some(expected_invisible) => match (expected_invisible, actual_invisible) { (Invisible::Whitespace { .. }, Invisible::Whitespace { .. }) | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {} _ => { panic!( "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}" ) } }, None => { panic!("Unexpected extra invisible {actual_invisible:?} at index {i}") } } } let missing_expected_invisibles = &expected_invisibles[i + 1..]; assert!( missing_expected_invisibles.is_empty(), "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}" ); editor_width += resize_step; } } } fn collect_invisibles_from_new_editor( cx: &mut TestAppContext, editor_mode: EditorMode, input_text: &str, editor_width: Pixels, show_line_numbers: bool, ) -> Vec { info!( "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'", editor_width.0 ); let window = cx.add_window(|window, cx| { let buffer = MultiBuffer::build_simple(input_text, cx); Editor::new(editor_mode, buffer, None, window, cx) }); let cx = &mut VisualTestContext::from_window(*window, cx); let editor = window.root(cx).unwrap(); let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone()); window .update(cx, |editor, _, cx| { editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx); editor.set_wrap_width(Some(editor_width), cx); editor.set_show_line_numbers(show_line_numbers, cx); }) .unwrap(); let (_, state) = cx.draw( point(px(500.), px(500.)), size(px(500.), px(500.)), |_, _| EditorElement::new(&editor, style), ); state .position_map .line_layouts .iter() .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles) .cloned() .collect() } }