mirror of
https://github.com/getcompanion-ai/co-mono.git
synced 2026-04-15 08:03:39 +00:00
7d2d170c1b
Add insertTextAtCursorInternal() to properly handle newlines by splitting lines at the cursor position. - Normalize line endings (CRLF/CR to LF) - Handle single-line and multi-line insertion - Position cursor at end of inserted text - Call onChange only once at the end Refactor handlePaste() to use insertTextAtCursorInternal() for multi-line pastes, while retaining character-by-character insertion for single-line pastes to preserve autocomplete triggering.
1839 lines
58 KiB
TypeScript
1839 lines
58 KiB
TypeScript
import type { AutocompleteProvider, CombinedAutocompleteProvider } from "../autocomplete.js";
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import { getEditorKeybindings } from "../keybindings.js";
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import { matchesKey } from "../keys.js";
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import { type Component, CURSOR_MARKER, type Focusable, type TUI } from "../tui.js";
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import { getSegmenter, isPunctuationChar, isWhitespaceChar, visibleWidth } from "../utils.js";
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import { SelectList, type SelectListTheme } from "./select-list.js";
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const segmenter = getSegmenter();
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/**
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* Represents a chunk of text for word-wrap layout.
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* Tracks both the text content and its position in the original line.
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*/
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export interface TextChunk {
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text: string;
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startIndex: number;
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endIndex: number;
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}
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/**
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* Split a line into word-wrapped chunks.
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* Wraps at word boundaries when possible, falling back to character-level
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* wrapping for words longer than the available width.
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*
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* @param line - The text line to wrap
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* @param maxWidth - Maximum visible width per chunk
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* @returns Array of chunks with text and position information
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*/
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export function wordWrapLine(line: string, maxWidth: number): TextChunk[] {
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if (!line || maxWidth <= 0) {
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return [{ text: "", startIndex: 0, endIndex: 0 }];
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}
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const lineWidth = visibleWidth(line);
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if (lineWidth <= maxWidth) {
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return [{ text: line, startIndex: 0, endIndex: line.length }];
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}
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const chunks: TextChunk[] = [];
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const segments = [...segmenter.segment(line)];
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let currentWidth = 0;
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let chunkStart = 0;
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// Wrap opportunity: the position after the last whitespace before a non-whitespace
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// grapheme, i.e. where a line break is allowed.
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let wrapOppIndex = -1;
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let wrapOppWidth = 0;
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for (let i = 0; i < segments.length; i++) {
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const seg = segments[i]!;
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const grapheme = seg.segment;
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const gWidth = visibleWidth(grapheme);
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const charIndex = seg.index;
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const isWs = isWhitespaceChar(grapheme);
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// Overflow check before advancing.
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if (currentWidth + gWidth > maxWidth) {
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if (wrapOppIndex >= 0) {
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// Backtrack to last wrap opportunity.
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chunks.push({ text: line.slice(chunkStart, wrapOppIndex), startIndex: chunkStart, endIndex: wrapOppIndex });
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chunkStart = wrapOppIndex;
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currentWidth -= wrapOppWidth;
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} else if (chunkStart < charIndex) {
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// No wrap opportunity: force-break at current position.
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chunks.push({ text: line.slice(chunkStart, charIndex), startIndex: chunkStart, endIndex: charIndex });
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chunkStart = charIndex;
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currentWidth = 0;
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}
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wrapOppIndex = -1;
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}
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// Advance.
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currentWidth += gWidth;
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// Record wrap opportunity: whitespace followed by non-whitespace.
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// Multiple spaces join (no break between them); the break point is
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// after the last space before the next word.
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const next = segments[i + 1];
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if (isWs && next && !isWhitespaceChar(next.segment)) {
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wrapOppIndex = next.index;
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wrapOppWidth = currentWidth;
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}
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}
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// Push final chunk.
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chunks.push({ text: line.slice(chunkStart), startIndex: chunkStart, endIndex: line.length });
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return chunks;
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}
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// Kitty CSI-u sequences for printable keys, including optional shifted/base codepoints.
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const KITTY_CSI_U_REGEX = /^\x1b\[(\d+)(?::(\d*))?(?::(\d+))?(?:;(\d+))?(?::(\d+))?u$/;
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const KITTY_MOD_SHIFT = 1;
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const KITTY_MOD_ALT = 2;
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const KITTY_MOD_CTRL = 4;
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// Decode a printable CSI-u sequence, preferring the shifted key when present.
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function decodeKittyPrintable(data: string): string | undefined {
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const match = data.match(KITTY_CSI_U_REGEX);
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if (!match) return undefined;
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// CSI-u groups: <codepoint>[:<shifted>[:<base>]];<mod>u
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const codepoint = Number.parseInt(match[1] ?? "", 10);
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if (!Number.isFinite(codepoint)) return undefined;
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const shiftedKey = match[2] && match[2].length > 0 ? Number.parseInt(match[2], 10) : undefined;
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const modValue = match[4] ? Number.parseInt(match[4], 10) : 1;
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// Modifiers are 1-indexed in CSI-u; normalize to our bitmask.
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const modifier = Number.isFinite(modValue) ? modValue - 1 : 0;
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// Ignore CSI-u sequences used for Alt/Ctrl shortcuts.
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if (modifier & (KITTY_MOD_ALT | KITTY_MOD_CTRL)) return undefined;
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// Prefer the shifted keycode when Shift is held.
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let effectiveCodepoint = codepoint;
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if (modifier & KITTY_MOD_SHIFT && typeof shiftedKey === "number") {
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effectiveCodepoint = shiftedKey;
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}
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// Drop control characters or invalid codepoints.
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if (!Number.isFinite(effectiveCodepoint) || effectiveCodepoint < 32) return undefined;
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try {
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return String.fromCodePoint(effectiveCodepoint);
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} catch {
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return undefined;
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}
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}
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interface EditorState {
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lines: string[];
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cursorLine: number;
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cursorCol: number;
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}
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interface LayoutLine {
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text: string;
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hasCursor: boolean;
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cursorPos?: number;
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}
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export interface EditorTheme {
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borderColor: (str: string) => string;
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selectList: SelectListTheme;
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}
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export interface EditorOptions {
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paddingX?: number;
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}
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export class Editor implements Component, Focusable {
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private state: EditorState = {
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lines: [""],
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cursorLine: 0,
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cursorCol: 0,
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};
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/** Focusable interface - set by TUI when focus changes */
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focused: boolean = false;
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protected tui: TUI;
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private theme: EditorTheme;
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private paddingX: number = 0;
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// Store last render width for cursor navigation
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private lastWidth: number = 80;
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// Vertical scrolling support
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private scrollOffset: number = 0;
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// Border color (can be changed dynamically)
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public borderColor: (str: string) => string;
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// Autocomplete support
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private autocompleteProvider?: AutocompleteProvider;
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private autocompleteList?: SelectList;
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private isAutocompleting: boolean = false;
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private autocompletePrefix: string = "";
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// Paste tracking for large pastes
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private pastes: Map<number, string> = new Map();
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private pasteCounter: number = 0;
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// Bracketed paste mode buffering
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private pasteBuffer: string = "";
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private isInPaste: boolean = false;
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private pendingShiftEnter: boolean = false;
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// Prompt history for up/down navigation
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private history: string[] = [];
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private historyIndex: number = -1; // -1 = not browsing, 0 = most recent, 1 = older, etc.
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// Kill ring for Emacs-style kill/yank operations
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// Also tracks undo coalescing: "type-word" means we're mid-word (coalescing)
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private killRing: string[] = [];
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private lastAction: "kill" | "yank" | "type-word" | null = null;
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// Undo support
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private undoStack: EditorState[] = [];
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public onSubmit?: (text: string) => void;
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public onChange?: (text: string) => void;
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public disableSubmit: boolean = false;
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constructor(tui: TUI, theme: EditorTheme, options: EditorOptions = {}) {
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this.tui = tui;
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this.theme = theme;
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this.borderColor = theme.borderColor;
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const paddingX = options.paddingX ?? 0;
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this.paddingX = Number.isFinite(paddingX) ? Math.max(0, Math.floor(paddingX)) : 0;
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}
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getPaddingX(): number {
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return this.paddingX;
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}
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setPaddingX(padding: number): void {
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const newPadding = Number.isFinite(padding) ? Math.max(0, Math.floor(padding)) : 0;
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if (this.paddingX !== newPadding) {
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this.paddingX = newPadding;
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this.tui.requestRender();
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}
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}
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setAutocompleteProvider(provider: AutocompleteProvider): void {
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this.autocompleteProvider = provider;
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}
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/**
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* Add a prompt to history for up/down arrow navigation.
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* Called after successful submission.
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*/
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addToHistory(text: string): void {
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const trimmed = text.trim();
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if (!trimmed) return;
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// Don't add consecutive duplicates
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if (this.history.length > 0 && this.history[0] === trimmed) return;
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this.history.unshift(trimmed);
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// Limit history size
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if (this.history.length > 100) {
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this.history.pop();
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}
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}
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private isEditorEmpty(): boolean {
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return this.state.lines.length === 1 && this.state.lines[0] === "";
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}
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private isOnFirstVisualLine(): boolean {
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const visualLines = this.buildVisualLineMap(this.lastWidth);
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const currentVisualLine = this.findCurrentVisualLine(visualLines);
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return currentVisualLine === 0;
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}
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private isOnLastVisualLine(): boolean {
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const visualLines = this.buildVisualLineMap(this.lastWidth);
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const currentVisualLine = this.findCurrentVisualLine(visualLines);
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return currentVisualLine === visualLines.length - 1;
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}
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private navigateHistory(direction: 1 | -1): void {
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this.lastAction = null;
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if (this.history.length === 0) return;
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const newIndex = this.historyIndex - direction; // Up(-1) increases index, Down(1) decreases
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if (newIndex < -1 || newIndex >= this.history.length) return;
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// Capture state when first entering history browsing mode
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if (this.historyIndex === -1 && newIndex >= 0) {
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this.pushUndoSnapshot();
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}
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this.historyIndex = newIndex;
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if (this.historyIndex === -1) {
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// Returned to "current" state - clear editor
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this.setTextInternal("");
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} else {
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this.setTextInternal(this.history[this.historyIndex] || "");
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}
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}
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/** Internal setText that doesn't reset history state - used by navigateHistory */
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private setTextInternal(text: string): void {
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// Reset kill ring state - external text changes break accumulation/yank chains
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this.lastAction = null;
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const lines = text.replace(/\r\n/g, "\n").replace(/\r/g, "\n").split("\n");
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this.state.lines = lines.length === 0 ? [""] : lines;
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this.state.cursorLine = this.state.lines.length - 1;
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this.state.cursorCol = this.state.lines[this.state.cursorLine]?.length || 0;
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// Reset scroll - render() will adjust to show cursor
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this.scrollOffset = 0;
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if (this.onChange) {
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this.onChange(this.getText());
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}
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}
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invalidate(): void {
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// No cached state to invalidate currently
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}
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render(width: number): string[] {
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const maxPadding = Math.max(0, Math.floor((width - 1) / 2));
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const paddingX = Math.min(this.paddingX, maxPadding);
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const contentWidth = Math.max(1, width - paddingX * 2);
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// Layout width: with padding the cursor can overflow into it,
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// without padding we reserve 1 column for the cursor.
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const layoutWidth = Math.max(1, contentWidth - (paddingX ? 0 : 1));
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// Store for cursor navigation (must match wrapping width)
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this.lastWidth = layoutWidth;
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const horizontal = this.borderColor("─");
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// Layout the text
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const layoutLines = this.layoutText(layoutWidth);
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// Calculate max visible lines: 30% of terminal height, minimum 5 lines
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const terminalRows = this.tui.terminal.rows;
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const maxVisibleLines = Math.max(5, Math.floor(terminalRows * 0.3));
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// Find the cursor line index in layoutLines
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let cursorLineIndex = layoutLines.findIndex((line) => line.hasCursor);
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if (cursorLineIndex === -1) cursorLineIndex = 0;
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// Adjust scroll offset to keep cursor visible
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if (cursorLineIndex < this.scrollOffset) {
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this.scrollOffset = cursorLineIndex;
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} else if (cursorLineIndex >= this.scrollOffset + maxVisibleLines) {
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this.scrollOffset = cursorLineIndex - maxVisibleLines + 1;
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}
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// Clamp scroll offset to valid range
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const maxScrollOffset = Math.max(0, layoutLines.length - maxVisibleLines);
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this.scrollOffset = Math.max(0, Math.min(this.scrollOffset, maxScrollOffset));
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// Get visible lines slice
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const visibleLines = layoutLines.slice(this.scrollOffset, this.scrollOffset + maxVisibleLines);
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const result: string[] = [];
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const leftPadding = " ".repeat(paddingX);
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const rightPadding = leftPadding;
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// Render top border (with scroll indicator if scrolled down)
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if (this.scrollOffset > 0) {
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const indicator = `─── ↑ ${this.scrollOffset} more `;
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const remaining = width - visibleWidth(indicator);
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result.push(this.borderColor(indicator + "─".repeat(Math.max(0, remaining))));
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} else {
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result.push(horizontal.repeat(width));
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}
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// Render each visible layout line
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// Emit hardware cursor marker only when focused and not showing autocomplete
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const emitCursorMarker = this.focused && !this.isAutocompleting;
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for (const layoutLine of visibleLines) {
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let displayText = layoutLine.text;
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let lineVisibleWidth = visibleWidth(layoutLine.text);
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let cursorInPadding = false;
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// Add cursor if this line has it
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if (layoutLine.hasCursor && layoutLine.cursorPos !== undefined) {
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const before = displayText.slice(0, layoutLine.cursorPos);
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const after = displayText.slice(layoutLine.cursorPos);
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// Hardware cursor marker (zero-width, emitted before fake cursor for IME positioning)
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const marker = emitCursorMarker ? CURSOR_MARKER : "";
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if (after.length > 0) {
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// Cursor is on a character (grapheme) - replace it with highlighted version
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// Get the first grapheme from 'after'
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const afterGraphemes = [...segmenter.segment(after)];
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const firstGrapheme = afterGraphemes[0]?.segment || "";
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const restAfter = after.slice(firstGrapheme.length);
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const cursor = `\x1b[7m${firstGrapheme}\x1b[0m`;
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displayText = before + marker + cursor + restAfter;
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// lineVisibleWidth stays the same - we're replacing, not adding
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} else {
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// Cursor is at the end - add highlighted space
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const cursor = "\x1b[7m \x1b[0m";
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displayText = before + marker + cursor;
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lineVisibleWidth = lineVisibleWidth + 1;
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// If cursor overflows content width into the padding, flag it
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if (lineVisibleWidth > contentWidth && paddingX > 0) {
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cursorInPadding = true;
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}
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}
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}
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// Calculate padding based on actual visible width
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const padding = " ".repeat(Math.max(0, contentWidth - lineVisibleWidth));
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const lineRightPadding = cursorInPadding ? rightPadding.slice(1) : rightPadding;
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// Render the line (no side borders, just horizontal lines above and below)
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result.push(`${leftPadding}${displayText}${padding}${lineRightPadding}`);
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}
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// Render bottom border (with scroll indicator if more content below)
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const linesBelow = layoutLines.length - (this.scrollOffset + visibleLines.length);
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if (linesBelow > 0) {
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const indicator = `─── ↓ ${linesBelow} more `;
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const remaining = width - visibleWidth(indicator);
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result.push(this.borderColor(indicator + "─".repeat(Math.max(0, remaining))));
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} else {
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result.push(horizontal.repeat(width));
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}
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// Add autocomplete list if active
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if (this.isAutocompleting && this.autocompleteList) {
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const autocompleteResult = this.autocompleteList.render(contentWidth);
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for (const line of autocompleteResult) {
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const lineWidth = visibleWidth(line);
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const linePadding = " ".repeat(Math.max(0, contentWidth - lineWidth));
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result.push(`${leftPadding}${line}${linePadding}${rightPadding}`);
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}
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}
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return result;
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}
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handleInput(data: string): void {
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const kb = getEditorKeybindings();
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// Handle bracketed paste mode
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if (data.includes("\x1b[200~")) {
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this.isInPaste = true;
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this.pasteBuffer = "";
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data = data.replace("\x1b[200~", "");
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}
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if (this.isInPaste) {
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this.pasteBuffer += data;
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const endIndex = this.pasteBuffer.indexOf("\x1b[201~");
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if (endIndex !== -1) {
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const pasteContent = this.pasteBuffer.substring(0, endIndex);
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if (pasteContent.length > 0) {
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this.handlePaste(pasteContent);
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}
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this.isInPaste = false;
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const remaining = this.pasteBuffer.substring(endIndex + 6);
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this.pasteBuffer = "";
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if (remaining.length > 0) {
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this.handleInput(remaining);
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}
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return;
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}
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return;
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}
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if (this.pendingShiftEnter) {
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if (data === "\r") {
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this.pendingShiftEnter = false;
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this.addNewLine();
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return;
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}
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this.pendingShiftEnter = false;
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this.insertCharacter("\\");
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}
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if (data === "\\") {
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this.pendingShiftEnter = true;
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return;
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}
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// Ctrl+C - let parent handle (exit/clear)
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if (kb.matches(data, "copy")) {
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return;
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}
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// Undo
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if (kb.matches(data, "undo")) {
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this.undo();
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return;
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}
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// Handle autocomplete mode
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if (this.isAutocompleting && this.autocompleteList) {
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if (kb.matches(data, "selectCancel")) {
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this.cancelAutocomplete();
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return;
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}
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if (kb.matches(data, "selectUp") || kb.matches(data, "selectDown")) {
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this.autocompleteList.handleInput(data);
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return;
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}
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if (kb.matches(data, "tab")) {
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const selected = this.autocompleteList.getSelectedItem();
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if (selected && this.autocompleteProvider) {
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this.pushUndoSnapshot();
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this.lastAction = null;
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const result = this.autocompleteProvider.applyCompletion(
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this.state.lines,
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this.state.cursorLine,
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this.state.cursorCol,
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selected,
|
|
this.autocompletePrefix,
|
|
);
|
|
this.state.lines = result.lines;
|
|
this.state.cursorLine = result.cursorLine;
|
|
this.state.cursorCol = result.cursorCol;
|
|
this.cancelAutocomplete();
|
|
if (this.onChange) this.onChange(this.getText());
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (kb.matches(data, "selectConfirm")) {
|
|
const selected = this.autocompleteList.getSelectedItem();
|
|
if (selected && this.autocompleteProvider) {
|
|
this.pushUndoSnapshot();
|
|
this.lastAction = null;
|
|
const result = this.autocompleteProvider.applyCompletion(
|
|
this.state.lines,
|
|
this.state.cursorLine,
|
|
this.state.cursorCol,
|
|
selected,
|
|
this.autocompletePrefix,
|
|
);
|
|
this.state.lines = result.lines;
|
|
this.state.cursorLine = result.cursorLine;
|
|
this.state.cursorCol = result.cursorCol;
|
|
|
|
if (this.autocompletePrefix.startsWith("/")) {
|
|
this.cancelAutocomplete();
|
|
// Fall through to submit
|
|
} else {
|
|
this.cancelAutocomplete();
|
|
if (this.onChange) this.onChange(this.getText());
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Tab - trigger completion
|
|
if (kb.matches(data, "tab") && !this.isAutocompleting) {
|
|
this.handleTabCompletion();
|
|
return;
|
|
}
|
|
|
|
// Deletion actions
|
|
if (kb.matches(data, "deleteToLineEnd")) {
|
|
this.deleteToEndOfLine();
|
|
return;
|
|
}
|
|
if (kb.matches(data, "deleteToLineStart")) {
|
|
this.deleteToStartOfLine();
|
|
return;
|
|
}
|
|
if (kb.matches(data, "deleteWordBackward")) {
|
|
this.deleteWordBackwards();
|
|
return;
|
|
}
|
|
if (kb.matches(data, "deleteWordForward")) {
|
|
this.deleteWordForward();
|
|
return;
|
|
}
|
|
if (kb.matches(data, "deleteCharBackward") || matchesKey(data, "shift+backspace")) {
|
|
this.handleBackspace();
|
|
return;
|
|
}
|
|
if (kb.matches(data, "deleteCharForward") || matchesKey(data, "shift+delete")) {
|
|
this.handleForwardDelete();
|
|
return;
|
|
}
|
|
|
|
// Kill ring actions
|
|
if (kb.matches(data, "yank")) {
|
|
this.yank();
|
|
return;
|
|
}
|
|
if (kb.matches(data, "yankPop")) {
|
|
this.yankPop();
|
|
return;
|
|
}
|
|
|
|
// Cursor movement actions
|
|
if (kb.matches(data, "cursorLineStart")) {
|
|
this.moveToLineStart();
|
|
return;
|
|
}
|
|
if (kb.matches(data, "cursorLineEnd")) {
|
|
this.moveToLineEnd();
|
|
return;
|
|
}
|
|
if (kb.matches(data, "cursorWordLeft")) {
|
|
this.moveWordBackwards();
|
|
return;
|
|
}
|
|
if (kb.matches(data, "cursorWordRight")) {
|
|
this.moveWordForwards();
|
|
return;
|
|
}
|
|
|
|
// New line (Shift+Enter, Alt+Enter, etc.)
|
|
if (
|
|
kb.matches(data, "newLine") ||
|
|
(data.charCodeAt(0) === 10 && data.length > 1) ||
|
|
data === "\x1b\r" ||
|
|
data === "\x1b[13;2~" ||
|
|
(data.length > 1 && data.includes("\x1b") && data.includes("\r")) ||
|
|
(data === "\n" && data.length === 1) ||
|
|
data === "\\\r"
|
|
) {
|
|
this.addNewLine();
|
|
return;
|
|
}
|
|
|
|
// Submit (Enter)
|
|
if (kb.matches(data, "submit")) {
|
|
if (this.disableSubmit) return;
|
|
|
|
let result = this.state.lines.join("\n").trim();
|
|
for (const [pasteId, pasteContent] of this.pastes) {
|
|
const markerRegex = new RegExp(`\\[paste #${pasteId}( (\\+\\d+ lines|\\d+ chars))?\\]`, "g");
|
|
result = result.replace(markerRegex, pasteContent);
|
|
}
|
|
|
|
this.state = { lines: [""], cursorLine: 0, cursorCol: 0 };
|
|
this.pastes.clear();
|
|
this.pasteCounter = 0;
|
|
this.historyIndex = -1;
|
|
this.scrollOffset = 0;
|
|
this.undoStack.length = 0;
|
|
this.lastAction = null;
|
|
|
|
if (this.onChange) this.onChange("");
|
|
if (this.onSubmit) this.onSubmit(result);
|
|
return;
|
|
}
|
|
|
|
// Arrow key navigation (with history support)
|
|
if (kb.matches(data, "cursorUp")) {
|
|
if (this.isEditorEmpty()) {
|
|
this.navigateHistory(-1);
|
|
} else if (this.historyIndex > -1 && this.isOnFirstVisualLine()) {
|
|
this.navigateHistory(-1);
|
|
} else {
|
|
this.moveCursor(-1, 0);
|
|
}
|
|
return;
|
|
}
|
|
if (kb.matches(data, "cursorDown")) {
|
|
if (this.historyIndex > -1 && this.isOnLastVisualLine()) {
|
|
this.navigateHistory(1);
|
|
} else {
|
|
this.moveCursor(1, 0);
|
|
}
|
|
return;
|
|
}
|
|
if (kb.matches(data, "cursorRight")) {
|
|
this.moveCursor(0, 1);
|
|
return;
|
|
}
|
|
if (kb.matches(data, "cursorLeft")) {
|
|
this.moveCursor(0, -1);
|
|
return;
|
|
}
|
|
|
|
// Page up/down - scroll by page and move cursor
|
|
if (kb.matches(data, "pageUp")) {
|
|
this.pageScroll(-1);
|
|
return;
|
|
}
|
|
if (kb.matches(data, "pageDown")) {
|
|
this.pageScroll(1);
|
|
return;
|
|
}
|
|
|
|
// Shift+Space - insert regular space
|
|
if (matchesKey(data, "shift+space")) {
|
|
this.insertCharacter(" ");
|
|
return;
|
|
}
|
|
|
|
const kittyPrintable = decodeKittyPrintable(data);
|
|
if (kittyPrintable !== undefined) {
|
|
this.insertCharacter(kittyPrintable);
|
|
return;
|
|
}
|
|
|
|
// Regular characters
|
|
if (data.charCodeAt(0) >= 32) {
|
|
this.insertCharacter(data);
|
|
}
|
|
}
|
|
|
|
private layoutText(contentWidth: number): LayoutLine[] {
|
|
const layoutLines: LayoutLine[] = [];
|
|
|
|
if (this.state.lines.length === 0 || (this.state.lines.length === 1 && this.state.lines[0] === "")) {
|
|
// Empty editor
|
|
layoutLines.push({
|
|
text: "",
|
|
hasCursor: true,
|
|
cursorPos: 0,
|
|
});
|
|
return layoutLines;
|
|
}
|
|
|
|
// Process each logical line
|
|
for (let i = 0; i < this.state.lines.length; i++) {
|
|
const line = this.state.lines[i] || "";
|
|
const isCurrentLine = i === this.state.cursorLine;
|
|
const lineVisibleWidth = visibleWidth(line);
|
|
|
|
if (lineVisibleWidth <= contentWidth) {
|
|
// Line fits in one layout line
|
|
if (isCurrentLine) {
|
|
layoutLines.push({
|
|
text: line,
|
|
hasCursor: true,
|
|
cursorPos: this.state.cursorCol,
|
|
});
|
|
} else {
|
|
layoutLines.push({
|
|
text: line,
|
|
hasCursor: false,
|
|
});
|
|
}
|
|
} else {
|
|
// Line needs wrapping - use word-aware wrapping
|
|
const chunks = wordWrapLine(line, contentWidth);
|
|
|
|
for (let chunkIndex = 0; chunkIndex < chunks.length; chunkIndex++) {
|
|
const chunk = chunks[chunkIndex];
|
|
if (!chunk) continue;
|
|
|
|
const cursorPos = this.state.cursorCol;
|
|
const isLastChunk = chunkIndex === chunks.length - 1;
|
|
|
|
// Determine if cursor is in this chunk
|
|
// For word-wrapped chunks, we need to handle the case where
|
|
// cursor might be in trimmed whitespace at end of chunk
|
|
let hasCursorInChunk = false;
|
|
let adjustedCursorPos = 0;
|
|
|
|
if (isCurrentLine) {
|
|
if (isLastChunk) {
|
|
// Last chunk: cursor belongs here if >= startIndex
|
|
hasCursorInChunk = cursorPos >= chunk.startIndex;
|
|
adjustedCursorPos = cursorPos - chunk.startIndex;
|
|
} else {
|
|
// Non-last chunk: cursor belongs here if in range [startIndex, endIndex)
|
|
// But we need to handle the visual position in the trimmed text
|
|
hasCursorInChunk = cursorPos >= chunk.startIndex && cursorPos < chunk.endIndex;
|
|
if (hasCursorInChunk) {
|
|
adjustedCursorPos = cursorPos - chunk.startIndex;
|
|
// Clamp to text length (in case cursor was in trimmed whitespace)
|
|
if (adjustedCursorPos > chunk.text.length) {
|
|
adjustedCursorPos = chunk.text.length;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (hasCursorInChunk) {
|
|
layoutLines.push({
|
|
text: chunk.text,
|
|
hasCursor: true,
|
|
cursorPos: adjustedCursorPos,
|
|
});
|
|
} else {
|
|
layoutLines.push({
|
|
text: chunk.text,
|
|
hasCursor: false,
|
|
});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return layoutLines;
|
|
}
|
|
|
|
getText(): string {
|
|
return this.state.lines.join("\n");
|
|
}
|
|
|
|
/**
|
|
* Get text with paste markers expanded to their actual content.
|
|
* Use this when you need the full content (e.g., for external editor).
|
|
*/
|
|
getExpandedText(): string {
|
|
let result = this.state.lines.join("\n");
|
|
for (const [pasteId, pasteContent] of this.pastes) {
|
|
const markerRegex = new RegExp(`\\[paste #${pasteId}( (\\+\\d+ lines|\\d+ chars))?\\]`, "g");
|
|
result = result.replace(markerRegex, pasteContent);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
getLines(): string[] {
|
|
return [...this.state.lines];
|
|
}
|
|
|
|
getCursor(): { line: number; col: number } {
|
|
return { line: this.state.cursorLine, col: this.state.cursorCol };
|
|
}
|
|
|
|
setText(text: string): void {
|
|
this.historyIndex = -1; // Exit history browsing mode
|
|
// Push undo snapshot if content differs (makes programmatic changes undoable)
|
|
if (this.getText() !== text) {
|
|
this.pushUndoSnapshot();
|
|
}
|
|
this.setTextInternal(text);
|
|
this.lastAction = null;
|
|
}
|
|
|
|
/**
|
|
* Insert text at the current cursor position.
|
|
* Used for programmatic insertion (e.g., clipboard image markers).
|
|
* This is atomic for undo - single undo restores entire pre-insert state.
|
|
*/
|
|
insertTextAtCursor(text: string): void {
|
|
if (!text) return;
|
|
this.pushUndoSnapshot();
|
|
this.lastAction = null;
|
|
this.historyIndex = -1;
|
|
this.insertTextAtCursorInternal(text);
|
|
}
|
|
|
|
/**
|
|
* Internal text insertion at cursor. Handles single and multi-line text.
|
|
* Does not push undo snapshots or trigger autocomplete - caller is responsible.
|
|
* Normalizes line endings and calls onChange once at the end.
|
|
*/
|
|
private insertTextAtCursorInternal(text: string): void {
|
|
if (!text) return;
|
|
|
|
// Normalize line endings
|
|
const normalized = text.replace(/\r\n/g, "\n").replace(/\r/g, "\n");
|
|
const insertedLines = normalized.split("\n");
|
|
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
const beforeCursor = currentLine.slice(0, this.state.cursorCol);
|
|
const afterCursor = currentLine.slice(this.state.cursorCol);
|
|
|
|
if (insertedLines.length === 1) {
|
|
// Single line - insert at cursor position
|
|
this.state.lines[this.state.cursorLine] = beforeCursor + normalized + afterCursor;
|
|
this.state.cursorCol += normalized.length;
|
|
} else {
|
|
// Multi-line insertion
|
|
const newLines: string[] = [];
|
|
|
|
// Add all lines before current line
|
|
for (let i = 0; i < this.state.cursorLine; i++) {
|
|
newLines.push(this.state.lines[i] || "");
|
|
}
|
|
|
|
// Add the first inserted line merged with text before cursor
|
|
newLines.push(beforeCursor + (insertedLines[0] || ""));
|
|
|
|
// Add all middle inserted lines
|
|
for (let i = 1; i < insertedLines.length - 1; i++) {
|
|
newLines.push(insertedLines[i] || "");
|
|
}
|
|
|
|
// Add the last inserted line with text after cursor
|
|
newLines.push((insertedLines[insertedLines.length - 1] || "") + afterCursor);
|
|
|
|
// Add all lines after current line
|
|
for (let i = this.state.cursorLine + 1; i < this.state.lines.length; i++) {
|
|
newLines.push(this.state.lines[i] || "");
|
|
}
|
|
|
|
this.state.lines = newLines;
|
|
this.state.cursorLine += insertedLines.length - 1;
|
|
this.state.cursorCol = (insertedLines[insertedLines.length - 1] || "").length;
|
|
}
|
|
|
|
if (this.onChange) {
|
|
this.onChange(this.getText());
|
|
}
|
|
}
|
|
|
|
// All the editor methods from before...
|
|
private insertCharacter(char: string, skipUndoCoalescing?: boolean): void {
|
|
this.historyIndex = -1; // Exit history browsing mode
|
|
|
|
// Undo coalescing (fish-style):
|
|
// - Consecutive word chars coalesce into one undo unit
|
|
// - Space captures state before itself (so undo removes space+following word together)
|
|
// - Each space is separately undoable
|
|
// Skip coalescing when called from atomic operations (e.g., handlePaste)
|
|
if (!skipUndoCoalescing) {
|
|
if (isWhitespaceChar(char) || this.lastAction !== "type-word") {
|
|
this.pushUndoSnapshot();
|
|
}
|
|
this.lastAction = "type-word";
|
|
}
|
|
|
|
const line = this.state.lines[this.state.cursorLine] || "";
|
|
|
|
const before = line.slice(0, this.state.cursorCol);
|
|
const after = line.slice(this.state.cursorCol);
|
|
|
|
this.state.lines[this.state.cursorLine] = before + char + after;
|
|
this.state.cursorCol += char.length; // Fix: increment by the length of the inserted string
|
|
|
|
if (this.onChange) {
|
|
this.onChange(this.getText());
|
|
}
|
|
|
|
// Check if we should trigger or update autocomplete
|
|
if (!this.isAutocompleting) {
|
|
// Auto-trigger for "/" at the start of a line (slash commands)
|
|
if (char === "/" && this.isAtStartOfMessage()) {
|
|
this.tryTriggerAutocomplete();
|
|
}
|
|
// Auto-trigger for "@" file reference (fuzzy search)
|
|
else if (char === "@") {
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
const textBeforeCursor = currentLine.slice(0, this.state.cursorCol);
|
|
// Only trigger if @ is after whitespace or at start of line
|
|
const charBeforeAt = textBeforeCursor[textBeforeCursor.length - 2];
|
|
if (textBeforeCursor.length === 1 || charBeforeAt === " " || charBeforeAt === "\t") {
|
|
this.tryTriggerAutocomplete();
|
|
}
|
|
}
|
|
// Also auto-trigger when typing letters in a slash command context
|
|
else if (/[a-zA-Z0-9.\-_]/.test(char)) {
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
const textBeforeCursor = currentLine.slice(0, this.state.cursorCol);
|
|
// Check if we're in a slash command (with or without space for arguments)
|
|
if (this.isInSlashCommandContext(textBeforeCursor)) {
|
|
this.tryTriggerAutocomplete();
|
|
}
|
|
// Check if we're in an @ file reference context
|
|
else if (textBeforeCursor.match(/(?:^|[\s])@[^\s]*$/)) {
|
|
this.tryTriggerAutocomplete();
|
|
}
|
|
}
|
|
} else {
|
|
this.updateAutocomplete();
|
|
}
|
|
}
|
|
|
|
private handlePaste(pastedText: string): void {
|
|
this.historyIndex = -1; // Exit history browsing mode
|
|
this.lastAction = null;
|
|
|
|
this.pushUndoSnapshot();
|
|
|
|
// Clean the pasted text
|
|
const cleanText = pastedText.replace(/\r\n/g, "\n").replace(/\r/g, "\n");
|
|
|
|
// Convert tabs to spaces (4 spaces per tab)
|
|
const tabExpandedText = cleanText.replace(/\t/g, " ");
|
|
|
|
// Filter out non-printable characters except newlines
|
|
let filteredText = tabExpandedText
|
|
.split("")
|
|
.filter((char) => char === "\n" || char.charCodeAt(0) >= 32)
|
|
.join("");
|
|
|
|
// If pasting a file path (starts with /, ~, or .) and the character before
|
|
// the cursor is a word character, prepend a space for better readability
|
|
if (/^[/~.]/.test(filteredText)) {
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
const charBeforeCursor = this.state.cursorCol > 0 ? currentLine[this.state.cursorCol - 1] : "";
|
|
if (charBeforeCursor && /\w/.test(charBeforeCursor)) {
|
|
filteredText = ` ${filteredText}`;
|
|
}
|
|
}
|
|
|
|
// Split into lines to check for large paste
|
|
const pastedLines = filteredText.split("\n");
|
|
|
|
// Check if this is a large paste (> 10 lines or > 1000 characters)
|
|
const totalChars = filteredText.length;
|
|
if (pastedLines.length > 10 || totalChars > 1000) {
|
|
// Store the paste and insert a marker
|
|
this.pasteCounter++;
|
|
const pasteId = this.pasteCounter;
|
|
this.pastes.set(pasteId, filteredText);
|
|
|
|
// Insert marker like "[paste #1 +123 lines]" or "[paste #1 1234 chars]"
|
|
const marker =
|
|
pastedLines.length > 10
|
|
? `[paste #${pasteId} +${pastedLines.length} lines]`
|
|
: `[paste #${pasteId} ${totalChars} chars]`;
|
|
this.insertTextAtCursorInternal(marker);
|
|
return;
|
|
}
|
|
|
|
if (pastedLines.length === 1) {
|
|
// Single line - insert character by character to trigger autocomplete
|
|
for (const char of filteredText) {
|
|
this.insertCharacter(char, true);
|
|
}
|
|
return;
|
|
}
|
|
|
|
// Multi-line paste - use direct state manipulation
|
|
this.insertTextAtCursorInternal(filteredText);
|
|
}
|
|
|
|
private addNewLine(): void {
|
|
this.historyIndex = -1; // Exit history browsing mode
|
|
this.lastAction = null;
|
|
|
|
this.pushUndoSnapshot();
|
|
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
|
|
const before = currentLine.slice(0, this.state.cursorCol);
|
|
const after = currentLine.slice(this.state.cursorCol);
|
|
|
|
// Split current line
|
|
this.state.lines[this.state.cursorLine] = before;
|
|
this.state.lines.splice(this.state.cursorLine + 1, 0, after);
|
|
|
|
// Move cursor to start of new line
|
|
this.state.cursorLine++;
|
|
this.state.cursorCol = 0;
|
|
|
|
if (this.onChange) {
|
|
this.onChange(this.getText());
|
|
}
|
|
}
|
|
|
|
private handleBackspace(): void {
|
|
this.historyIndex = -1; // Exit history browsing mode
|
|
this.lastAction = null;
|
|
|
|
if (this.state.cursorCol > 0) {
|
|
this.pushUndoSnapshot();
|
|
|
|
// Delete grapheme before cursor (handles emojis, combining characters, etc.)
|
|
const line = this.state.lines[this.state.cursorLine] || "";
|
|
const beforeCursor = line.slice(0, this.state.cursorCol);
|
|
|
|
// Find the last grapheme in the text before cursor
|
|
const graphemes = [...segmenter.segment(beforeCursor)];
|
|
const lastGrapheme = graphemes[graphemes.length - 1];
|
|
const graphemeLength = lastGrapheme ? lastGrapheme.segment.length : 1;
|
|
|
|
const before = line.slice(0, this.state.cursorCol - graphemeLength);
|
|
const after = line.slice(this.state.cursorCol);
|
|
|
|
this.state.lines[this.state.cursorLine] = before + after;
|
|
this.state.cursorCol -= graphemeLength;
|
|
} else if (this.state.cursorLine > 0) {
|
|
this.pushUndoSnapshot();
|
|
|
|
// Merge with previous line
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
const previousLine = this.state.lines[this.state.cursorLine - 1] || "";
|
|
|
|
this.state.lines[this.state.cursorLine - 1] = previousLine + currentLine;
|
|
this.state.lines.splice(this.state.cursorLine, 1);
|
|
|
|
this.state.cursorLine--;
|
|
this.state.cursorCol = previousLine.length;
|
|
}
|
|
|
|
if (this.onChange) {
|
|
this.onChange(this.getText());
|
|
}
|
|
|
|
// Update or re-trigger autocomplete after backspace
|
|
if (this.isAutocompleting) {
|
|
this.updateAutocomplete();
|
|
} else {
|
|
// If autocomplete was cancelled (no matches), re-trigger if we're in a completable context
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
const textBeforeCursor = currentLine.slice(0, this.state.cursorCol);
|
|
// Slash command context
|
|
if (this.isInSlashCommandContext(textBeforeCursor)) {
|
|
this.tryTriggerAutocomplete();
|
|
}
|
|
// @ file reference context
|
|
else if (textBeforeCursor.match(/(?:^|[\s])@[^\s]*$/)) {
|
|
this.tryTriggerAutocomplete();
|
|
}
|
|
}
|
|
}
|
|
|
|
private moveToLineStart(): void {
|
|
this.lastAction = null;
|
|
this.state.cursorCol = 0;
|
|
}
|
|
|
|
private moveToLineEnd(): void {
|
|
this.lastAction = null;
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
this.state.cursorCol = currentLine.length;
|
|
}
|
|
|
|
private deleteToStartOfLine(): void {
|
|
this.historyIndex = -1; // Exit history browsing mode
|
|
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
|
|
if (this.state.cursorCol > 0) {
|
|
this.pushUndoSnapshot();
|
|
|
|
// Calculate text to be deleted and save to kill ring (backward deletion = prepend)
|
|
const deletedText = currentLine.slice(0, this.state.cursorCol);
|
|
this.addToKillRing(deletedText, true);
|
|
this.lastAction = "kill";
|
|
|
|
// Delete from start of line up to cursor
|
|
this.state.lines[this.state.cursorLine] = currentLine.slice(this.state.cursorCol);
|
|
this.state.cursorCol = 0;
|
|
} else if (this.state.cursorLine > 0) {
|
|
this.pushUndoSnapshot();
|
|
|
|
// At start of line - merge with previous line, treating newline as deleted text
|
|
this.addToKillRing("\n", true);
|
|
this.lastAction = "kill";
|
|
|
|
const previousLine = this.state.lines[this.state.cursorLine - 1] || "";
|
|
this.state.lines[this.state.cursorLine - 1] = previousLine + currentLine;
|
|
this.state.lines.splice(this.state.cursorLine, 1);
|
|
this.state.cursorLine--;
|
|
this.state.cursorCol = previousLine.length;
|
|
}
|
|
|
|
if (this.onChange) {
|
|
this.onChange(this.getText());
|
|
}
|
|
}
|
|
|
|
private deleteToEndOfLine(): void {
|
|
this.historyIndex = -1; // Exit history browsing mode
|
|
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
|
|
if (this.state.cursorCol < currentLine.length) {
|
|
this.pushUndoSnapshot();
|
|
|
|
// Calculate text to be deleted and save to kill ring (forward deletion = append)
|
|
const deletedText = currentLine.slice(this.state.cursorCol);
|
|
this.addToKillRing(deletedText, false);
|
|
this.lastAction = "kill";
|
|
|
|
// Delete from cursor to end of line
|
|
this.state.lines[this.state.cursorLine] = currentLine.slice(0, this.state.cursorCol);
|
|
} else if (this.state.cursorLine < this.state.lines.length - 1) {
|
|
this.pushUndoSnapshot();
|
|
|
|
// At end of line - merge with next line, treating newline as deleted text
|
|
this.addToKillRing("\n", false);
|
|
this.lastAction = "kill";
|
|
|
|
const nextLine = this.state.lines[this.state.cursorLine + 1] || "";
|
|
this.state.lines[this.state.cursorLine] = currentLine + nextLine;
|
|
this.state.lines.splice(this.state.cursorLine + 1, 1);
|
|
}
|
|
|
|
if (this.onChange) {
|
|
this.onChange(this.getText());
|
|
}
|
|
}
|
|
|
|
private deleteWordBackwards(): void {
|
|
this.historyIndex = -1; // Exit history browsing mode
|
|
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
|
|
// If at start of line, behave like backspace at column 0 (merge with previous line)
|
|
if (this.state.cursorCol === 0) {
|
|
if (this.state.cursorLine > 0) {
|
|
this.pushUndoSnapshot();
|
|
|
|
// Treat newline as deleted text (backward deletion = prepend)
|
|
this.addToKillRing("\n", true);
|
|
this.lastAction = "kill";
|
|
|
|
const previousLine = this.state.lines[this.state.cursorLine - 1] || "";
|
|
this.state.lines[this.state.cursorLine - 1] = previousLine + currentLine;
|
|
this.state.lines.splice(this.state.cursorLine, 1);
|
|
this.state.cursorLine--;
|
|
this.state.cursorCol = previousLine.length;
|
|
}
|
|
} else {
|
|
this.pushUndoSnapshot();
|
|
|
|
// Save lastAction before cursor movement (moveWordBackwards resets it)
|
|
const wasKill = this.lastAction === "kill";
|
|
|
|
const oldCursorCol = this.state.cursorCol;
|
|
this.moveWordBackwards();
|
|
const deleteFrom = this.state.cursorCol;
|
|
this.state.cursorCol = oldCursorCol;
|
|
|
|
// Restore kill state for accumulation check, then save to kill ring
|
|
this.lastAction = wasKill ? "kill" : null;
|
|
const deletedText = currentLine.slice(deleteFrom, this.state.cursorCol);
|
|
this.addToKillRing(deletedText, true);
|
|
this.lastAction = "kill";
|
|
|
|
this.state.lines[this.state.cursorLine] =
|
|
currentLine.slice(0, deleteFrom) + currentLine.slice(this.state.cursorCol);
|
|
this.state.cursorCol = deleteFrom;
|
|
}
|
|
|
|
if (this.onChange) {
|
|
this.onChange(this.getText());
|
|
}
|
|
}
|
|
|
|
private deleteWordForward(): void {
|
|
this.historyIndex = -1; // Exit history browsing mode
|
|
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
|
|
// If at end of line, merge with next line (delete the newline)
|
|
if (this.state.cursorCol >= currentLine.length) {
|
|
if (this.state.cursorLine < this.state.lines.length - 1) {
|
|
this.pushUndoSnapshot();
|
|
|
|
// Treat newline as deleted text (forward deletion = append)
|
|
this.addToKillRing("\n", false);
|
|
this.lastAction = "kill";
|
|
|
|
const nextLine = this.state.lines[this.state.cursorLine + 1] || "";
|
|
this.state.lines[this.state.cursorLine] = currentLine + nextLine;
|
|
this.state.lines.splice(this.state.cursorLine + 1, 1);
|
|
}
|
|
} else {
|
|
this.pushUndoSnapshot();
|
|
|
|
// Save lastAction before cursor movement (moveWordForwards resets it)
|
|
const wasKill = this.lastAction === "kill";
|
|
|
|
const oldCursorCol = this.state.cursorCol;
|
|
this.moveWordForwards();
|
|
const deleteTo = this.state.cursorCol;
|
|
this.state.cursorCol = oldCursorCol;
|
|
|
|
// Restore kill state for accumulation check, then save to kill ring
|
|
this.lastAction = wasKill ? "kill" : null;
|
|
const deletedText = currentLine.slice(this.state.cursorCol, deleteTo);
|
|
this.addToKillRing(deletedText, false);
|
|
this.lastAction = "kill";
|
|
|
|
this.state.lines[this.state.cursorLine] =
|
|
currentLine.slice(0, this.state.cursorCol) + currentLine.slice(deleteTo);
|
|
}
|
|
|
|
if (this.onChange) {
|
|
this.onChange(this.getText());
|
|
}
|
|
}
|
|
|
|
private handleForwardDelete(): void {
|
|
this.historyIndex = -1; // Exit history browsing mode
|
|
this.lastAction = null;
|
|
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
|
|
if (this.state.cursorCol < currentLine.length) {
|
|
this.pushUndoSnapshot();
|
|
|
|
// Delete grapheme at cursor position (handles emojis, combining characters, etc.)
|
|
const afterCursor = currentLine.slice(this.state.cursorCol);
|
|
|
|
// Find the first grapheme at cursor
|
|
const graphemes = [...segmenter.segment(afterCursor)];
|
|
const firstGrapheme = graphemes[0];
|
|
const graphemeLength = firstGrapheme ? firstGrapheme.segment.length : 1;
|
|
|
|
const before = currentLine.slice(0, this.state.cursorCol);
|
|
const after = currentLine.slice(this.state.cursorCol + graphemeLength);
|
|
this.state.lines[this.state.cursorLine] = before + after;
|
|
} else if (this.state.cursorLine < this.state.lines.length - 1) {
|
|
this.pushUndoSnapshot();
|
|
|
|
// At end of line - merge with next line
|
|
const nextLine = this.state.lines[this.state.cursorLine + 1] || "";
|
|
this.state.lines[this.state.cursorLine] = currentLine + nextLine;
|
|
this.state.lines.splice(this.state.cursorLine + 1, 1);
|
|
}
|
|
|
|
if (this.onChange) {
|
|
this.onChange(this.getText());
|
|
}
|
|
|
|
// Update or re-trigger autocomplete after forward delete
|
|
if (this.isAutocompleting) {
|
|
this.updateAutocomplete();
|
|
} else {
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
const textBeforeCursor = currentLine.slice(0, this.state.cursorCol);
|
|
// Slash command context
|
|
if (this.isInSlashCommandContext(textBeforeCursor)) {
|
|
this.tryTriggerAutocomplete();
|
|
}
|
|
// @ file reference context
|
|
else if (textBeforeCursor.match(/(?:^|[\s])@[^\s]*$/)) {
|
|
this.tryTriggerAutocomplete();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Build a mapping from visual lines to logical positions.
|
|
* Returns an array where each element represents a visual line with:
|
|
* - logicalLine: index into this.state.lines
|
|
* - startCol: starting column in the logical line
|
|
* - length: length of this visual line segment
|
|
*/
|
|
private buildVisualLineMap(width: number): Array<{ logicalLine: number; startCol: number; length: number }> {
|
|
const visualLines: Array<{ logicalLine: number; startCol: number; length: number }> = [];
|
|
|
|
for (let i = 0; i < this.state.lines.length; i++) {
|
|
const line = this.state.lines[i] || "";
|
|
const lineVisWidth = visibleWidth(line);
|
|
if (line.length === 0) {
|
|
// Empty line still takes one visual line
|
|
visualLines.push({ logicalLine: i, startCol: 0, length: 0 });
|
|
} else if (lineVisWidth <= width) {
|
|
visualLines.push({ logicalLine: i, startCol: 0, length: line.length });
|
|
} else {
|
|
// Line needs wrapping - use word-aware wrapping
|
|
const chunks = wordWrapLine(line, width);
|
|
for (const chunk of chunks) {
|
|
visualLines.push({
|
|
logicalLine: i,
|
|
startCol: chunk.startIndex,
|
|
length: chunk.endIndex - chunk.startIndex,
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
return visualLines;
|
|
}
|
|
|
|
/**
|
|
* Find the visual line index for the current cursor position.
|
|
*/
|
|
private findCurrentVisualLine(
|
|
visualLines: Array<{ logicalLine: number; startCol: number; length: number }>,
|
|
): number {
|
|
for (let i = 0; i < visualLines.length; i++) {
|
|
const vl = visualLines[i];
|
|
if (!vl) continue;
|
|
if (vl.logicalLine === this.state.cursorLine) {
|
|
const colInSegment = this.state.cursorCol - vl.startCol;
|
|
// Cursor is in this segment if it's within range
|
|
// For the last segment of a logical line, cursor can be at length (end position)
|
|
const isLastSegmentOfLine =
|
|
i === visualLines.length - 1 || visualLines[i + 1]?.logicalLine !== vl.logicalLine;
|
|
if (colInSegment >= 0 && (colInSegment < vl.length || (isLastSegmentOfLine && colInSegment <= vl.length))) {
|
|
return i;
|
|
}
|
|
}
|
|
}
|
|
// Fallback: return last visual line
|
|
return visualLines.length - 1;
|
|
}
|
|
|
|
private moveCursor(deltaLine: number, deltaCol: number): void {
|
|
this.lastAction = null;
|
|
const width = this.lastWidth;
|
|
|
|
if (deltaLine !== 0) {
|
|
// Build visual line map for navigation
|
|
const visualLines = this.buildVisualLineMap(width);
|
|
const currentVisualLine = this.findCurrentVisualLine(visualLines);
|
|
|
|
// Calculate column position within current visual line
|
|
const currentVL = visualLines[currentVisualLine];
|
|
const visualCol = currentVL ? this.state.cursorCol - currentVL.startCol : 0;
|
|
|
|
// Move to target visual line
|
|
const targetVisualLine = currentVisualLine + deltaLine;
|
|
|
|
if (targetVisualLine >= 0 && targetVisualLine < visualLines.length) {
|
|
const targetVL = visualLines[targetVisualLine];
|
|
if (targetVL) {
|
|
this.state.cursorLine = targetVL.logicalLine;
|
|
// Try to maintain visual column position, clamped to line length
|
|
const targetCol = targetVL.startCol + Math.min(visualCol, targetVL.length);
|
|
const logicalLine = this.state.lines[targetVL.logicalLine] || "";
|
|
this.state.cursorCol = Math.min(targetCol, logicalLine.length);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (deltaCol !== 0) {
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
|
|
if (deltaCol > 0) {
|
|
// Moving right - move by one grapheme (handles emojis, combining characters, etc.)
|
|
if (this.state.cursorCol < currentLine.length) {
|
|
const afterCursor = currentLine.slice(this.state.cursorCol);
|
|
const graphemes = [...segmenter.segment(afterCursor)];
|
|
const firstGrapheme = graphemes[0];
|
|
this.state.cursorCol += firstGrapheme ? firstGrapheme.segment.length : 1;
|
|
} else if (this.state.cursorLine < this.state.lines.length - 1) {
|
|
// Wrap to start of next logical line
|
|
this.state.cursorLine++;
|
|
this.state.cursorCol = 0;
|
|
}
|
|
} else {
|
|
// Moving left - move by one grapheme (handles emojis, combining characters, etc.)
|
|
if (this.state.cursorCol > 0) {
|
|
const beforeCursor = currentLine.slice(0, this.state.cursorCol);
|
|
const graphemes = [...segmenter.segment(beforeCursor)];
|
|
const lastGrapheme = graphemes[graphemes.length - 1];
|
|
this.state.cursorCol -= lastGrapheme ? lastGrapheme.segment.length : 1;
|
|
} else if (this.state.cursorLine > 0) {
|
|
// Wrap to end of previous logical line
|
|
this.state.cursorLine--;
|
|
const prevLine = this.state.lines[this.state.cursorLine] || "";
|
|
this.state.cursorCol = prevLine.length;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Scroll by a page (direction: -1 for up, 1 for down).
|
|
* Moves cursor by the page size while keeping it in bounds.
|
|
*/
|
|
private pageScroll(direction: -1 | 1): void {
|
|
this.lastAction = null;
|
|
const width = this.lastWidth;
|
|
const terminalRows = this.tui.terminal.rows;
|
|
const pageSize = Math.max(5, Math.floor(terminalRows * 0.3));
|
|
|
|
// Build visual line map
|
|
const visualLines = this.buildVisualLineMap(width);
|
|
const currentVisualLine = this.findCurrentVisualLine(visualLines);
|
|
|
|
// Calculate target visual line
|
|
const targetVisualLine = Math.max(0, Math.min(visualLines.length - 1, currentVisualLine + direction * pageSize));
|
|
|
|
// Move cursor to target visual line
|
|
const targetVL = visualLines[targetVisualLine];
|
|
if (targetVL) {
|
|
// Preserve column position within the line
|
|
const currentVL = visualLines[currentVisualLine];
|
|
const visualCol = currentVL ? this.state.cursorCol - currentVL.startCol : 0;
|
|
|
|
this.state.cursorLine = targetVL.logicalLine;
|
|
const targetCol = targetVL.startCol + Math.min(visualCol, targetVL.length);
|
|
const logicalLine = this.state.lines[targetVL.logicalLine] || "";
|
|
this.state.cursorCol = Math.min(targetCol, logicalLine.length);
|
|
}
|
|
}
|
|
|
|
private moveWordBackwards(): void {
|
|
this.lastAction = null;
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
|
|
// If at start of line, move to end of previous line
|
|
if (this.state.cursorCol === 0) {
|
|
if (this.state.cursorLine > 0) {
|
|
this.state.cursorLine--;
|
|
const prevLine = this.state.lines[this.state.cursorLine] || "";
|
|
this.state.cursorCol = prevLine.length;
|
|
}
|
|
return;
|
|
}
|
|
|
|
const textBeforeCursor = currentLine.slice(0, this.state.cursorCol);
|
|
const graphemes = [...segmenter.segment(textBeforeCursor)];
|
|
let newCol = this.state.cursorCol;
|
|
|
|
// Skip trailing whitespace
|
|
while (graphemes.length > 0 && isWhitespaceChar(graphemes[graphemes.length - 1]?.segment || "")) {
|
|
newCol -= graphemes.pop()?.segment.length || 0;
|
|
}
|
|
|
|
if (graphemes.length > 0) {
|
|
const lastGrapheme = graphemes[graphemes.length - 1]?.segment || "";
|
|
if (isPunctuationChar(lastGrapheme)) {
|
|
// Skip punctuation run
|
|
while (graphemes.length > 0 && isPunctuationChar(graphemes[graphemes.length - 1]?.segment || "")) {
|
|
newCol -= graphemes.pop()?.segment.length || 0;
|
|
}
|
|
} else {
|
|
// Skip word run
|
|
while (
|
|
graphemes.length > 0 &&
|
|
!isWhitespaceChar(graphemes[graphemes.length - 1]?.segment || "") &&
|
|
!isPunctuationChar(graphemes[graphemes.length - 1]?.segment || "")
|
|
) {
|
|
newCol -= graphemes.pop()?.segment.length || 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
this.state.cursorCol = newCol;
|
|
}
|
|
|
|
/**
|
|
* Yank (paste) the most recent kill ring entry at cursor position.
|
|
*/
|
|
private yank(): void {
|
|
if (this.killRing.length === 0) return;
|
|
|
|
this.pushUndoSnapshot();
|
|
|
|
const text = this.killRing[this.killRing.length - 1] || "";
|
|
this.insertYankedText(text);
|
|
|
|
this.lastAction = "yank";
|
|
}
|
|
|
|
/**
|
|
* Cycle through kill ring (only works immediately after yank or yank-pop).
|
|
* Replaces the last yanked text with the previous entry in the ring.
|
|
*/
|
|
private yankPop(): void {
|
|
// Only works if we just yanked and have more than one entry
|
|
if (this.lastAction !== "yank" || this.killRing.length <= 1) return;
|
|
|
|
this.pushUndoSnapshot();
|
|
|
|
// Delete the previously yanked text (still at end of ring before rotation)
|
|
this.deleteYankedText();
|
|
|
|
// Rotate the ring: move end to front
|
|
const lastEntry = this.killRing.pop()!;
|
|
this.killRing.unshift(lastEntry);
|
|
|
|
// Insert the new most recent entry (now at end after rotation)
|
|
const text = this.killRing[this.killRing.length - 1];
|
|
this.insertYankedText(text);
|
|
|
|
this.lastAction = "yank";
|
|
}
|
|
|
|
/**
|
|
* Insert text at cursor position (used by yank operations).
|
|
*/
|
|
private insertYankedText(text: string): void {
|
|
this.historyIndex = -1; // Exit history browsing mode
|
|
const lines = text.split("\n");
|
|
|
|
if (lines.length === 1) {
|
|
// Single line - insert at cursor
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
const before = currentLine.slice(0, this.state.cursorCol);
|
|
const after = currentLine.slice(this.state.cursorCol);
|
|
this.state.lines[this.state.cursorLine] = before + text + after;
|
|
this.state.cursorCol += text.length;
|
|
} else {
|
|
// Multi-line insert
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
const before = currentLine.slice(0, this.state.cursorCol);
|
|
const after = currentLine.slice(this.state.cursorCol);
|
|
|
|
// First line merges with text before cursor
|
|
this.state.lines[this.state.cursorLine] = before + (lines[0] || "");
|
|
|
|
// Insert middle lines
|
|
for (let i = 1; i < lines.length - 1; i++) {
|
|
this.state.lines.splice(this.state.cursorLine + i, 0, lines[i] || "");
|
|
}
|
|
|
|
// Last line merges with text after cursor
|
|
const lastLineIndex = this.state.cursorLine + lines.length - 1;
|
|
this.state.lines.splice(lastLineIndex, 0, (lines[lines.length - 1] || "") + after);
|
|
|
|
// Update cursor position
|
|
this.state.cursorLine = lastLineIndex;
|
|
this.state.cursorCol = (lines[lines.length - 1] || "").length;
|
|
}
|
|
|
|
if (this.onChange) {
|
|
this.onChange(this.getText());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Delete the previously yanked text (used by yank-pop).
|
|
* The yanked text is derived from killRing[end] since it hasn't been rotated yet.
|
|
*/
|
|
private deleteYankedText(): void {
|
|
const yankedText = this.killRing[this.killRing.length - 1] || "";
|
|
if (!yankedText) return;
|
|
|
|
const yankLines = yankedText.split("\n");
|
|
|
|
if (yankLines.length === 1) {
|
|
// Single line - delete backward from cursor
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
const deleteLen = yankedText.length;
|
|
const before = currentLine.slice(0, this.state.cursorCol - deleteLen);
|
|
const after = currentLine.slice(this.state.cursorCol);
|
|
this.state.lines[this.state.cursorLine] = before + after;
|
|
this.state.cursorCol -= deleteLen;
|
|
} else {
|
|
// Multi-line delete - cursor is at end of last yanked line
|
|
const startLine = this.state.cursorLine - (yankLines.length - 1);
|
|
const startCol = (this.state.lines[startLine] || "").length - (yankLines[0] || "").length;
|
|
|
|
// Get text after cursor on current line
|
|
const afterCursor = (this.state.lines[this.state.cursorLine] || "").slice(this.state.cursorCol);
|
|
|
|
// Get text before yank start position
|
|
const beforeYank = (this.state.lines[startLine] || "").slice(0, startCol);
|
|
|
|
// Remove all lines from startLine to cursorLine and replace with merged line
|
|
this.state.lines.splice(startLine, yankLines.length, beforeYank + afterCursor);
|
|
|
|
// Update cursor
|
|
this.state.cursorLine = startLine;
|
|
this.state.cursorCol = startCol;
|
|
}
|
|
|
|
if (this.onChange) {
|
|
this.onChange(this.getText());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add text to the kill ring.
|
|
* If lastAction is "kill", accumulates with the previous entry.
|
|
* @param text - The text to add
|
|
* @param prepend - If accumulating, prepend (true) or append (false) to existing entry
|
|
*/
|
|
private addToKillRing(text: string, prepend: boolean): void {
|
|
if (!text) return;
|
|
|
|
if (this.lastAction === "kill" && this.killRing.length > 0) {
|
|
// Accumulate with the most recent entry (at end of array)
|
|
const lastEntry = this.killRing.pop();
|
|
if (prepend) {
|
|
this.killRing.push(text + lastEntry);
|
|
} else {
|
|
this.killRing.push(lastEntry + text);
|
|
}
|
|
} else {
|
|
// Add new entry to end of ring
|
|
this.killRing.push(text);
|
|
}
|
|
}
|
|
|
|
private captureUndoSnapshot(): EditorState {
|
|
return structuredClone(this.state);
|
|
}
|
|
|
|
private restoreUndoSnapshot(snapshot: EditorState): void {
|
|
Object.assign(this.state, structuredClone(snapshot));
|
|
}
|
|
|
|
private pushUndoSnapshot(): void {
|
|
this.undoStack.push(this.captureUndoSnapshot());
|
|
}
|
|
|
|
private undo(): void {
|
|
this.historyIndex = -1; // Exit history browsing mode
|
|
if (this.undoStack.length === 0) return;
|
|
const snapshot = this.undoStack.pop()!;
|
|
this.restoreUndoSnapshot(snapshot);
|
|
this.lastAction = null;
|
|
if (this.onChange) {
|
|
this.onChange(this.getText());
|
|
}
|
|
}
|
|
|
|
private moveWordForwards(): void {
|
|
this.lastAction = null;
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
|
|
// If at end of line, move to start of next line
|
|
if (this.state.cursorCol >= currentLine.length) {
|
|
if (this.state.cursorLine < this.state.lines.length - 1) {
|
|
this.state.cursorLine++;
|
|
this.state.cursorCol = 0;
|
|
}
|
|
return;
|
|
}
|
|
|
|
const textAfterCursor = currentLine.slice(this.state.cursorCol);
|
|
const segments = segmenter.segment(textAfterCursor);
|
|
const iterator = segments[Symbol.iterator]();
|
|
let next = iterator.next();
|
|
|
|
// Skip leading whitespace
|
|
while (!next.done && isWhitespaceChar(next.value.segment)) {
|
|
this.state.cursorCol += next.value.segment.length;
|
|
next = iterator.next();
|
|
}
|
|
|
|
if (!next.done) {
|
|
const firstGrapheme = next.value.segment;
|
|
if (isPunctuationChar(firstGrapheme)) {
|
|
// Skip punctuation run
|
|
while (!next.done && isPunctuationChar(next.value.segment)) {
|
|
this.state.cursorCol += next.value.segment.length;
|
|
next = iterator.next();
|
|
}
|
|
} else {
|
|
// Skip word run
|
|
while (!next.done && !isWhitespaceChar(next.value.segment) && !isPunctuationChar(next.value.segment)) {
|
|
this.state.cursorCol += next.value.segment.length;
|
|
next = iterator.next();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Slash menu only allowed when all other lines are empty (no mixed content)
|
|
private isSlashMenuAllowed(): boolean {
|
|
for (let i = 0; i < this.state.lines.length; i++) {
|
|
if (i === this.state.cursorLine) continue;
|
|
if (this.state.lines[i].trim() !== "") return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Helper method to check if cursor is at start of message (for slash command detection)
|
|
private isAtStartOfMessage(): boolean {
|
|
if (!this.isSlashMenuAllowed()) return false;
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
const beforeCursor = currentLine.slice(0, this.state.cursorCol);
|
|
return beforeCursor.trim() === "" || beforeCursor.trim() === "/";
|
|
}
|
|
|
|
private isInSlashCommandContext(textBeforeCursor: string): boolean {
|
|
return this.isSlashMenuAllowed() && textBeforeCursor.trimStart().startsWith("/");
|
|
}
|
|
|
|
// Autocomplete methods
|
|
private tryTriggerAutocomplete(explicitTab: boolean = false): void {
|
|
if (!this.autocompleteProvider) return;
|
|
|
|
// Check if we should trigger file completion on Tab
|
|
if (explicitTab) {
|
|
const provider = this.autocompleteProvider as CombinedAutocompleteProvider;
|
|
const shouldTrigger =
|
|
!provider.shouldTriggerFileCompletion ||
|
|
provider.shouldTriggerFileCompletion(this.state.lines, this.state.cursorLine, this.state.cursorCol);
|
|
if (!shouldTrigger) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
const suggestions = this.autocompleteProvider.getSuggestions(
|
|
this.state.lines,
|
|
this.state.cursorLine,
|
|
this.state.cursorCol,
|
|
);
|
|
|
|
if (suggestions && suggestions.items.length > 0) {
|
|
this.autocompletePrefix = suggestions.prefix;
|
|
this.autocompleteList = new SelectList(suggestions.items, 5, this.theme.selectList);
|
|
this.isAutocompleting = true;
|
|
} else {
|
|
this.cancelAutocomplete();
|
|
}
|
|
}
|
|
|
|
private handleTabCompletion(): void {
|
|
if (!this.autocompleteProvider) return;
|
|
|
|
const currentLine = this.state.lines[this.state.cursorLine] || "";
|
|
const beforeCursor = currentLine.slice(0, this.state.cursorCol);
|
|
|
|
// Check if we're in a slash command context
|
|
if (this.isInSlashCommandContext(beforeCursor) && !beforeCursor.trimStart().includes(" ")) {
|
|
this.handleSlashCommandCompletion();
|
|
} else {
|
|
this.forceFileAutocomplete();
|
|
}
|
|
}
|
|
|
|
private handleSlashCommandCompletion(): void {
|
|
this.tryTriggerAutocomplete(true);
|
|
}
|
|
|
|
/*
|
|
https://github.com/EsotericSoftware/spine-runtimes/actions/runs/19536643416/job/559322883
|
|
17 this job fails with https://github.com/EsotericSoftware/spine-runtimes/actions/runs/19
|
|
536643416/job/55932288317 havea look at .gi
|
|
*/
|
|
private forceFileAutocomplete(): void {
|
|
if (!this.autocompleteProvider) return;
|
|
|
|
// Check if provider supports force file suggestions via runtime check
|
|
const provider = this.autocompleteProvider as {
|
|
getForceFileSuggestions?: CombinedAutocompleteProvider["getForceFileSuggestions"];
|
|
};
|
|
if (typeof provider.getForceFileSuggestions !== "function") {
|
|
this.tryTriggerAutocomplete(true);
|
|
return;
|
|
}
|
|
|
|
const suggestions = provider.getForceFileSuggestions(
|
|
this.state.lines,
|
|
this.state.cursorLine,
|
|
this.state.cursorCol,
|
|
);
|
|
|
|
if (suggestions && suggestions.items.length > 0) {
|
|
this.autocompletePrefix = suggestions.prefix;
|
|
this.autocompleteList = new SelectList(suggestions.items, 5, this.theme.selectList);
|
|
this.isAutocompleting = true;
|
|
} else {
|
|
this.cancelAutocomplete();
|
|
}
|
|
}
|
|
|
|
private cancelAutocomplete(): void {
|
|
this.isAutocompleting = false;
|
|
this.autocompleteList = undefined;
|
|
this.autocompletePrefix = "";
|
|
}
|
|
|
|
public isShowingAutocomplete(): boolean {
|
|
return this.isAutocompleting;
|
|
}
|
|
|
|
private updateAutocomplete(): void {
|
|
if (!this.isAutocompleting || !this.autocompleteProvider) return;
|
|
|
|
const suggestions = this.autocompleteProvider.getSuggestions(
|
|
this.state.lines,
|
|
this.state.cursorLine,
|
|
this.state.cursorCol,
|
|
);
|
|
|
|
if (suggestions && suggestions.items.length > 0) {
|
|
this.autocompletePrefix = suggestions.prefix;
|
|
// Always create new SelectList to ensure update
|
|
this.autocompleteList = new SelectList(suggestions.items, 5, this.theme.selectList);
|
|
} else {
|
|
this.cancelAutocomplete();
|
|
}
|
|
}
|
|
}
|