/** * @license * Copyright 2025 Google LLC * SPDX-License-Identifier: Apache-2.0 */ import type React from 'react'; import { useCallback, useEffect, useState, useRef } from 'react'; import { Box, Text } from 'ink'; import { SuggestionsDisplay, MAX_WIDTH } from './SuggestionsDisplay.js'; import { theme } from '../semantic-colors.js'; import { useInputHistory } from '../hooks/useInputHistory.js'; import type { TextBuffer } from './shared/text-buffer.js'; import { logicalPosToOffset } from './shared/text-buffer.js'; import { cpSlice, cpLen } from '../utils/textUtils.js'; import chalk from 'chalk'; import { useShellHistory } from '../hooks/useShellHistory.js'; import { useReverseSearchCompletion } from '../hooks/useReverseSearchCompletion.js'; import { useCommandCompletion } from '../hooks/useCommandCompletion.js'; import type { Key } from '../hooks/useKeypress.js'; import { useKeypress } from '../hooks/useKeypress.js'; import { keyMatchers, Command } from '../keyMatchers.js'; import type { CommandContext, SlashCommand } from '../commands/types.js'; import type { Config } from '@qwen-code/qwen-code-core'; import { ApprovalMode } from '@qwen-code/qwen-code-core'; import { parseInputForHighlighting, buildSegmentsForVisualSlice, } from '../utils/highlight.js'; import { t } from '../../i18n/index.js'; import { clipboardHasImage, saveClipboardImage, cleanupOldClipboardImages, } from '../utils/clipboardUtils.js'; import * as path from 'node:path'; import { SCREEN_READER_USER_PREFIX } from '../textConstants.js'; import { useShellFocusState } from '../contexts/ShellFocusContext.js'; export interface InputPromptProps { buffer: TextBuffer; onSubmit: (value: string) => void; userMessages: readonly string[]; onClearScreen: () => void; config: Config; slashCommands: readonly SlashCommand[]; commandContext: CommandContext; placeholder?: string; focus?: boolean; inputWidth: number; suggestionsWidth: number; shellModeActive: boolean; setShellModeActive: (value: boolean) => void; approvalMode: ApprovalMode; onEscapePromptChange?: (showPrompt: boolean) => void; vimHandleInput?: (key: Key) => boolean; isEmbeddedShellFocused?: boolean; } // The input content, input container, and input suggestions list may have different widths export const calculatePromptWidths = (terminalWidth: number) => { const widthFraction = 0.9; const FRAME_PADDING_AND_BORDER = 4; // Border (2) + padding (2) const PROMPT_PREFIX_WIDTH = 2; // '> ' or '! ' const MIN_CONTENT_WIDTH = 2; const innerContentWidth = Math.floor(terminalWidth * widthFraction) - FRAME_PADDING_AND_BORDER - PROMPT_PREFIX_WIDTH; const inputWidth = Math.max(MIN_CONTENT_WIDTH, innerContentWidth); const FRAME_OVERHEAD = FRAME_PADDING_AND_BORDER + PROMPT_PREFIX_WIDTH; const containerWidth = inputWidth + FRAME_OVERHEAD; const suggestionsWidth = Math.max(20, Math.floor(terminalWidth * 1.0)); return { inputWidth, containerWidth, suggestionsWidth, frameOverhead: FRAME_OVERHEAD, } as const; }; export const InputPrompt: React.FC = ({ buffer, onSubmit, userMessages, onClearScreen, config, slashCommands, commandContext, placeholder, focus = true, suggestionsWidth, shellModeActive, setShellModeActive, approvalMode, onEscapePromptChange, vimHandleInput, isEmbeddedShellFocused, }) => { const isShellFocused = useShellFocusState(); const [justNavigatedHistory, setJustNavigatedHistory] = useState(false); const [escPressCount, setEscPressCount] = useState(0); const [showEscapePrompt, setShowEscapePrompt] = useState(false); const escapeTimerRef = useRef(null); const [recentPasteTime, setRecentPasteTime] = useState(null); const pasteTimeoutRef = useRef(null); const [dirs, setDirs] = useState( config.getWorkspaceContext().getDirectories(), ); const dirsChanged = config.getWorkspaceContext().getDirectories(); useEffect(() => { if (dirs.length !== dirsChanged.length) { setDirs(dirsChanged); } }, [dirs.length, dirsChanged]); const [reverseSearchActive, setReverseSearchActive] = useState(false); const [commandSearchActive, setCommandSearchActive] = useState(false); const [textBeforeReverseSearch, setTextBeforeReverseSearch] = useState(''); const [cursorPosition, setCursorPosition] = useState<[number, number]>([ 0, 0, ]); const [expandedSuggestionIndex, setExpandedSuggestionIndex] = useState(-1); const shellHistory = useShellHistory(config.getProjectRoot()); const shellHistoryData = shellHistory.history; const completion = useCommandCompletion( buffer, dirs, config.getTargetDir(), slashCommands, commandContext, reverseSearchActive, config, ); const reverseSearchCompletion = useReverseSearchCompletion( buffer, shellHistoryData, reverseSearchActive, ); const commandSearchCompletion = useReverseSearchCompletion( buffer, userMessages, commandSearchActive, ); const resetCompletionState = completion.resetCompletionState; const resetReverseSearchCompletionState = reverseSearchCompletion.resetCompletionState; const resetCommandSearchCompletionState = commandSearchCompletion.resetCompletionState; const showCursor = focus && isShellFocused && !isEmbeddedShellFocused; const resetEscapeState = useCallback(() => { if (escapeTimerRef.current) { clearTimeout(escapeTimerRef.current); escapeTimerRef.current = null; } setEscPressCount(0); setShowEscapePrompt(false); }, []); // Notify parent component about escape prompt state changes useEffect(() => { if (onEscapePromptChange) { onEscapePromptChange(showEscapePrompt); } }, [showEscapePrompt, onEscapePromptChange]); // Clear escape prompt timer on unmount useEffect( () => () => { if (escapeTimerRef.current) { clearTimeout(escapeTimerRef.current); } if (pasteTimeoutRef.current) { clearTimeout(pasteTimeoutRef.current); } }, [], ); const handleSubmitAndClear = useCallback( (submittedValue: string) => { if (shellModeActive) { shellHistory.addCommandToHistory(submittedValue); } // Clear the buffer *before* calling onSubmit to prevent potential re-submission // if onSubmit triggers a re-render while the buffer still holds the old value. buffer.setText(''); onSubmit(submittedValue); resetCompletionState(); resetReverseSearchCompletionState(); }, [ onSubmit, buffer, resetCompletionState, shellModeActive, shellHistory, resetReverseSearchCompletionState, ], ); const customSetTextAndResetCompletionSignal = useCallback( (newText: string) => { buffer.setText(newText); setJustNavigatedHistory(true); }, [buffer, setJustNavigatedHistory], ); const inputHistory = useInputHistory({ userMessages, onSubmit: handleSubmitAndClear, isActive: (!completion.showSuggestions || completion.suggestions.length === 1) && !shellModeActive, currentQuery: buffer.text, onChange: customSetTextAndResetCompletionSignal, }); // Effect to reset completion if history navigation just occurred and set the text useEffect(() => { if (justNavigatedHistory) { resetCompletionState(); resetReverseSearchCompletionState(); resetCommandSearchCompletionState(); setExpandedSuggestionIndex(-1); setJustNavigatedHistory(false); } }, [ justNavigatedHistory, buffer.text, resetCompletionState, setJustNavigatedHistory, resetReverseSearchCompletionState, resetCommandSearchCompletionState, ]); // Handle clipboard image pasting with Ctrl+V const handleClipboardImage = useCallback(async () => { try { if (await clipboardHasImage()) { const imagePath = await saveClipboardImage(config.getTargetDir()); if (imagePath) { // Clean up old images cleanupOldClipboardImages(config.getTargetDir()).catch(() => { // Ignore cleanup errors }); // Get relative path from current directory const relativePath = path.relative(config.getTargetDir(), imagePath); // Insert @path reference at cursor position const insertText = `@${relativePath}`; const currentText = buffer.text; const [row, col] = buffer.cursor; // Calculate offset from row/col let offset = 0; for (let i = 0; i < row; i++) { offset += buffer.lines[i].length + 1; // +1 for newline } offset += col; // Add spaces around the path if needed let textToInsert = insertText; const charBefore = offset > 0 ? currentText[offset - 1] : ''; const charAfter = offset < currentText.length ? currentText[offset] : ''; if (charBefore && charBefore !== ' ' && charBefore !== '\n') { textToInsert = ' ' + textToInsert; } if (!charAfter || (charAfter !== ' ' && charAfter !== '\n')) { textToInsert = textToInsert + ' '; } // Insert at cursor position buffer.replaceRangeByOffset(offset, offset, textToInsert); } } } catch (error) { console.error('Error handling clipboard image:', error); } }, [buffer, config]); const handleInput = useCallback( (key: Key) => { // TODO(jacobr): this special case is likely not needed anymore. // We should probably stop supporting paste if the InputPrompt is not // focused. /// We want to handle paste even when not focused to support drag and drop. if (!focus && !key.paste) { return; } if (key.paste) { // Record paste time to prevent accidental auto-submission setRecentPasteTime(Date.now()); // Clear any existing paste timeout if (pasteTimeoutRef.current) { clearTimeout(pasteTimeoutRef.current); } // Clear the paste protection after a safe delay pasteTimeoutRef.current = setTimeout(() => { setRecentPasteTime(null); pasteTimeoutRef.current = null; }, 500); // Ensure we never accidentally interpret paste as regular input. buffer.handleInput(key); return; } if (vimHandleInput && vimHandleInput(key)) { return; } // Reset ESC count and hide prompt on any non-ESC key if (key.name !== 'escape') { if (escPressCount > 0 || showEscapePrompt) { resetEscapeState(); } } if ( key.sequence === '!' && buffer.text === '' && !completion.showSuggestions ) { setShellModeActive(!shellModeActive); buffer.setText(''); // Clear the '!' from input return; } if (keyMatchers[Command.ESCAPE](key)) { const cancelSearch = ( setActive: (active: boolean) => void, resetCompletion: () => void, ) => { setActive(false); resetCompletion(); buffer.setText(textBeforeReverseSearch); const offset = logicalPosToOffset( buffer.lines, cursorPosition[0], cursorPosition[1], ); buffer.moveToOffset(offset); setExpandedSuggestionIndex(-1); }; if (reverseSearchActive) { cancelSearch( setReverseSearchActive, reverseSearchCompletion.resetCompletionState, ); return; } if (commandSearchActive) { cancelSearch( setCommandSearchActive, commandSearchCompletion.resetCompletionState, ); return; } if (shellModeActive) { setShellModeActive(false); resetEscapeState(); return; } if (completion.showSuggestions) { completion.resetCompletionState(); setExpandedSuggestionIndex(-1); resetEscapeState(); return; } // Handle double ESC for clearing input if (escPressCount === 0) { if (buffer.text === '') { return; } setEscPressCount(1); setShowEscapePrompt(true); if (escapeTimerRef.current) { clearTimeout(escapeTimerRef.current); } escapeTimerRef.current = setTimeout(() => { resetEscapeState(); }, 500); } else { // clear input and immediately reset state buffer.setText(''); resetCompletionState(); resetEscapeState(); } return; } if (shellModeActive && keyMatchers[Command.REVERSE_SEARCH](key)) { setReverseSearchActive(true); setTextBeforeReverseSearch(buffer.text); setCursorPosition(buffer.cursor); return; } if (keyMatchers[Command.CLEAR_SCREEN](key)) { onClearScreen(); return; } if (reverseSearchActive || commandSearchActive) { const isCommandSearch = commandSearchActive; const sc = isCommandSearch ? commandSearchCompletion : reverseSearchCompletion; const { activeSuggestionIndex, navigateUp, navigateDown, showSuggestions, suggestions, } = sc; const setActive = isCommandSearch ? setCommandSearchActive : setReverseSearchActive; const resetState = sc.resetCompletionState; if (showSuggestions) { if (keyMatchers[Command.NAVIGATION_UP](key)) { navigateUp(); return; } if (keyMatchers[Command.NAVIGATION_DOWN](key)) { navigateDown(); return; } if (keyMatchers[Command.COLLAPSE_SUGGESTION](key)) { if (suggestions[activeSuggestionIndex].value.length >= MAX_WIDTH) { setExpandedSuggestionIndex(-1); return; } } if (keyMatchers[Command.EXPAND_SUGGESTION](key)) { if (suggestions[activeSuggestionIndex].value.length >= MAX_WIDTH) { setExpandedSuggestionIndex(activeSuggestionIndex); return; } } if (keyMatchers[Command.ACCEPT_SUGGESTION_REVERSE_SEARCH](key)) { sc.handleAutocomplete(activeSuggestionIndex); resetState(); setActive(false); return; } } if (keyMatchers[Command.SUBMIT_REVERSE_SEARCH](key)) { const textToSubmit = showSuggestions && activeSuggestionIndex > -1 ? suggestions[activeSuggestionIndex].value : buffer.text; handleSubmitAndClear(textToSubmit); resetState(); setActive(false); return; } // Prevent up/down from falling through to regular history navigation if ( keyMatchers[Command.NAVIGATION_UP](key) || keyMatchers[Command.NAVIGATION_DOWN](key) ) { return; } } // If the command is a perfect match, pressing enter should execute it. if (completion.isPerfectMatch && keyMatchers[Command.RETURN](key)) { handleSubmitAndClear(buffer.text); return; } if (completion.showSuggestions) { if (completion.suggestions.length > 1) { if (keyMatchers[Command.COMPLETION_UP](key)) { completion.navigateUp(); setExpandedSuggestionIndex(-1); // Reset expansion when navigating return; } if (keyMatchers[Command.COMPLETION_DOWN](key)) { completion.navigateDown(); setExpandedSuggestionIndex(-1); // Reset expansion when navigating return; } } if (keyMatchers[Command.ACCEPT_SUGGESTION](key)) { if (completion.suggestions.length > 0) { const targetIndex = completion.activeSuggestionIndex === -1 ? 0 // Default to the first if none is active : completion.activeSuggestionIndex; if (targetIndex < completion.suggestions.length) { completion.handleAutocomplete(targetIndex); setExpandedSuggestionIndex(-1); // Reset expansion after selection } } return; } } if (!shellModeActive) { if (keyMatchers[Command.REVERSE_SEARCH](key)) { setCommandSearchActive(true); setTextBeforeReverseSearch(buffer.text); setCursorPosition(buffer.cursor); return; } if (keyMatchers[Command.HISTORY_UP](key)) { inputHistory.navigateUp(); return; } if (keyMatchers[Command.HISTORY_DOWN](key)) { inputHistory.navigateDown(); return; } // Handle arrow-up/down for history on single-line or at edges if ( keyMatchers[Command.NAVIGATION_UP](key) && (buffer.allVisualLines.length === 1 || (buffer.visualCursor[0] === 0 && buffer.visualScrollRow === 0)) ) { inputHistory.navigateUp(); return; } if ( keyMatchers[Command.NAVIGATION_DOWN](key) && (buffer.allVisualLines.length === 1 || buffer.visualCursor[0] === buffer.allVisualLines.length - 1) ) { inputHistory.navigateDown(); return; } } else { // Shell History Navigation if (keyMatchers[Command.NAVIGATION_UP](key)) { const prevCommand = shellHistory.getPreviousCommand(); if (prevCommand !== null) buffer.setText(prevCommand); return; } if (keyMatchers[Command.NAVIGATION_DOWN](key)) { const nextCommand = shellHistory.getNextCommand(); if (nextCommand !== null) buffer.setText(nextCommand); return; } } if (keyMatchers[Command.SUBMIT](key)) { if (buffer.text.trim()) { // Check if a paste operation occurred recently to prevent accidental auto-submission if (recentPasteTime !== null) { // Paste occurred recently, ignore this submit to prevent auto-execution return; } const [row, col] = buffer.cursor; const line = buffer.lines[row]; const charBefore = col > 0 ? cpSlice(line, col - 1, col) : ''; if (charBefore === '\\') { buffer.backspace(); buffer.newline(); } else { handleSubmitAndClear(buffer.text); } } return; } // Newline insertion if (keyMatchers[Command.NEWLINE](key)) { buffer.newline(); return; } // Ctrl+A (Home) / Ctrl+E (End) if (keyMatchers[Command.HOME](key)) { buffer.move('home'); return; } if (keyMatchers[Command.END](key)) { buffer.move('end'); return; } // Ctrl+C (Clear input) if (keyMatchers[Command.CLEAR_INPUT](key)) { if (buffer.text.length > 0) { buffer.setText(''); resetCompletionState(); } return; } // Kill line commands if (keyMatchers[Command.KILL_LINE_RIGHT](key)) { buffer.killLineRight(); return; } if (keyMatchers[Command.KILL_LINE_LEFT](key)) { buffer.killLineLeft(); return; } if (keyMatchers[Command.DELETE_WORD_BACKWARD](key)) { buffer.deleteWordLeft(); return; } // External editor if (keyMatchers[Command.OPEN_EXTERNAL_EDITOR](key)) { buffer.openInExternalEditor(); return; } // Ctrl+V for clipboard image paste if (keyMatchers[Command.PASTE_CLIPBOARD_IMAGE](key)) { handleClipboardImage(); return; } // Fall back to the text buffer's default input handling for all other keys buffer.handleInput(key); }, [ focus, buffer, completion, shellModeActive, setShellModeActive, onClearScreen, inputHistory, handleSubmitAndClear, shellHistory, reverseSearchCompletion, handleClipboardImage, resetCompletionState, escPressCount, showEscapePrompt, resetEscapeState, vimHandleInput, reverseSearchActive, textBeforeReverseSearch, cursorPosition, recentPasteTime, commandSearchActive, commandSearchCompletion, ], ); useKeypress(handleInput, { isActive: !isEmbeddedShellFocused }); const linesToRender = buffer.viewportVisualLines; const [cursorVisualRowAbsolute, cursorVisualColAbsolute] = buffer.visualCursor; const scrollVisualRow = buffer.visualScrollRow; const getActiveCompletion = () => { if (commandSearchActive) return commandSearchCompletion; if (reverseSearchActive) return reverseSearchCompletion; return completion; }; const activeCompletion = getActiveCompletion(); const shouldShowSuggestions = activeCompletion.showSuggestions; const showAutoAcceptStyling = !shellModeActive && approvalMode === ApprovalMode.AUTO_EDIT; const showYoloStyling = !shellModeActive && approvalMode === ApprovalMode.YOLO; let statusColor: string | undefined; let statusText = ''; if (shellModeActive) { statusColor = theme.ui.symbol; statusText = t('Shell mode'); } else if (showYoloStyling) { statusColor = theme.status.error; statusText = t('YOLO mode'); } else if (showAutoAcceptStyling) { statusColor = theme.status.warning; statusText = t('Accepting edits'); } return ( <> {shellModeActive ? ( reverseSearchActive ? ( (r:){' '} ) : ( '!' ) ) : commandSearchActive ? ( (r:) ) : showYoloStyling ? ( '*' ) : ( '>' )}{' '} {buffer.text.length === 0 && placeholder ? ( showCursor ? ( {chalk.inverse(placeholder.slice(0, 1))} {placeholder.slice(1)} ) : ( {placeholder} ) ) : ( linesToRender.map((lineText, visualIdxInRenderedSet) => { const absoluteVisualIdx = scrollVisualRow + visualIdxInRenderedSet; const mapEntry = buffer.visualToLogicalMap[absoluteVisualIdx]; const cursorVisualRow = cursorVisualRowAbsolute - scrollVisualRow; const isOnCursorLine = focus && visualIdxInRenderedSet === cursorVisualRow; const renderedLine: React.ReactNode[] = []; const [logicalLineIdx, logicalStartCol] = mapEntry; const logicalLine = buffer.lines[logicalLineIdx] || ''; const tokens = parseInputForHighlighting( logicalLine, logicalLineIdx, ); const visualStart = logicalStartCol; const visualEnd = logicalStartCol + cpLen(lineText); const segments = buildSegmentsForVisualSlice( tokens, visualStart, visualEnd, ); let charCount = 0; segments.forEach((seg, segIdx) => { const segLen = cpLen(seg.text); let display = seg.text; if (isOnCursorLine) { const relativeVisualColForHighlight = cursorVisualColAbsolute; const segStart = charCount; const segEnd = segStart + segLen; if ( relativeVisualColForHighlight >= segStart && relativeVisualColForHighlight < segEnd ) { const charToHighlight = cpSlice( seg.text, relativeVisualColForHighlight - segStart, relativeVisualColForHighlight - segStart + 1, ); const highlighted = showCursor ? chalk.inverse(charToHighlight) : charToHighlight; display = cpSlice( seg.text, 0, relativeVisualColForHighlight - segStart, ) + highlighted + cpSlice( seg.text, relativeVisualColForHighlight - segStart + 1, ); } charCount = segEnd; } const color = seg.type === 'command' || seg.type === 'file' ? theme.text.accent : theme.text.primary; renderedLine.push( {display} , ); }); if ( isOnCursorLine && cursorVisualColAbsolute === cpLen(lineText) ) { renderedLine.push( {showCursor ? chalk.inverse(' ') : ' '} , ); } return ( {renderedLine} ); }) )} {shouldShowSuggestions && ( )} ); };