T17 Editor: CodeEditor with gutter, folds, minimap, rulers, guides, brackets, whitespace, cursors, multi-cursor, sticky scroll, inlay hints, lenses, decorations, ghost text, inline chat and diff (T17a); completions, signatures, hover, code actions, rename, references, outline, go to symbol, call and type hierarchy (T17b); find and replace, search panel and filters (T17c); problems, output, debug console, extensions, settings with JSON, keybindings, theme previews, welcome, recent projects, switcher, task runner (T17d); status items (T17e)

Shared: generic undo History, OverflowMenu icon and tooltip, StatusBarItem leading, six Lucide icons.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tasks/ch11-20.md

@@ -273,73 +273,73 @@
 
 ## T17a Editor · Core — `src/editor`
 
-- [ ] CodeEditor — highlight, multi-cursor, selection, undo, redo
-- [ ] EditorGutter
-- [ ] LineNumbers — absolute, relative
-- [ ] FoldingControl
-- [ ] Minimap
-- [ ] Ruler / IndentGuide
-- [ ] BracketMatcher / RainbowBrackets
-- [ ] WhitespaceRenderer
-- [ ] CursorRenderer — block, line, underline, blink
-- [ ] SelectionHighlight
-- [ ] MultiCursor
-- [ ] VimModeIndicator
-- [ ] StickyScroll
-- [ ] Breadcrumb → `navigation::Breadcrumb`
-- [ ] InlayHints
-- [ ] CodeLens
-- [ ] InlineDecoration
-- [ ] GhostText
-- [ ] InlineChat
-- [ ] InlineDiff
-- [ ] ReadOnlyBanner
+- [x] CodeEditor — highlight, multi-cursor, selection, undo, redo
+- [x] EditorGutter → `editor::CodeEditor`, its gutter: breakpoints, problems, numbers, folds, git marks
+- [x] LineNumbers — absolute, relative → `CodeEditor::line_numbers` with `LineNumbers`
+- [x] FoldingControl → `CodeEditor`, gutter folds
+- [x] Minimap → `CodeEditor::minimap`
+- [x] Ruler / IndentGuide → `CodeEditor::rulers`; guides on unless `hide_indent_guides`
+- [x] BracketMatcher / RainbowBrackets → `CodeEditor::rainbow_brackets`; the matched pair always marked
+- [x] WhitespaceRenderer → `CodeEditor::show_whitespace`
+- [x] CursorRenderer — block, line, underline, blink → `CodeEditor::cursor_shape` with `CursorShape`
+- [x] SelectionHighlight → `CodeEditor`, the word at the cursor marked while focused
+- [x] MultiCursor → `CodeEditor`: Cmd-D, Cmd-Alt-Up and Down, Alt-click
+- [x] VimModeIndicator
+- [x] StickyScroll → `CodeEditor::sticky_scroll`
+- [x] Breadcrumb → `navigation::Breadcrumb`
+- [x] InlayHints → `CodeEditor::set_inlay_hints`
+- [x] CodeLens → `CodeEditor::set_code_lenses`
+- [x] InlineDecoration → `CodeEditor::set_diagnostics` and `set_backgrounds`
+- [x] GhostText → `CodeEditor::set_ghost_text`
+- [x] InlineChat → `CodeEditor::set_chat`
+- [x] InlineDiff → `CodeEditor::set_diff`
+- [x] ReadOnlyBanner
 
 ## T17b Editor · Intelligence
 
-- [ ] CompletionMenu
-- [ ] SignatureHelp
-- [ ] HoverInfo
-- [ ] QuickFix / CodeActionMenu
-- [ ] RenameInput
-- [ ] PeekView → `overlays::Peek`
-- [ ] ReferencesPanel
-- [ ] SymbolOutline
-- [ ] GoToSymbol
-- [ ] CallHierarchy / TypeHierarchy
+- [x] CompletionMenu
+- [x] SignatureHelp
+- [x] HoverInfo
+- [x] QuickFix / CodeActionMenu → `editor::CodeActionMenu`
+- [x] RenameInput
+- [x] PeekView → `overlays::Peek`
+- [x] ReferencesPanel
+- [x] SymbolOutline
+- [x] GoToSymbol
+- [x] CallHierarchy / TypeHierarchy → `editor::CallHierarchy`, `types` for supertypes and subtypes
 
 ## T17c Editor · Search
 
-- [ ] FindWidget
-- [ ] ReplaceWidget → `editor::FindWidget`
-- [ ] SearchPanel
-- [ ] SearchResultItem
-- [ ] SearchFilters
+- [x] FindWidget
+- [x] ReplaceWidget → `editor::FindWidget::replace`
+- [x] SearchPanel
+- [x] SearchResultItem
+- [x] SearchFilters
 
 ## T17d Editor · Panels
 
-- [ ] ProblemsPanel / DiagnosticsList
-- [ ] OutputPanel
-- [ ] DebugConsole
-- [ ] ExtensionsPanel / PluginList
-- [ ] SettingsEditor — UI and JSON
-- [ ] KeybindingsEditor
-- [ ] ThemePreview
-- [ ] WelcomePage
-- [ ] RecentProjects
-- [ ] ProjectSwitcher
-- [ ] TaskRunner / RunConfiguration
+- [x] ProblemsPanel / DiagnosticsList → `editor::ProblemsPanel`
+- [x] OutputPanel
+- [x] DebugConsole
+- [x] ExtensionsPanel / PluginList → `editor::ExtensionsPanel`
+- [x] SettingsEditor — UI and JSON
+- [x] KeybindingsEditor
+- [x] ThemePreview
+- [x] WelcomePage
+- [x] RecentProjects
+- [x] ProjectSwitcher
+- [x] TaskRunner / RunConfiguration → `editor::TaskRunner`, a task open to its configuration
 
 ## T17e Editor · Status items
 
-- [ ] CursorPosition
-- [ ] LanguageMode
-- [ ] Encoding
-- [ ] LineEnding
-- [ ] IndentSettings
-- [ ] BranchIndicator
-- [ ] LspStatus
-- [ ] NotificationBell
+- [x] CursorPosition
+- [x] LanguageMode
+- [x] Encoding
+- [x] LineEnding
+- [x] IndentSettings
+- [x] BranchIndicator
+- [x] LspStatus
+- [x] NotificationBell
 
 ## T18 Terminal — `src/terminal`