Files
gemini-cli/packages/cli/src/ui/components/InputPrompt.tsx

1182 lines
38 KiB
TypeScript

/**
* @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, getBoundingBox, type DOMElement } 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, toCodePoints } from '../utils/textUtils.js';
import chalk from 'chalk';
import stringWidth from 'string-width';
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 '@google/gemini-cli-core';
import { ApprovalMode } from '@google/gemini-cli-core';
import {
parseInputForHighlighting,
buildSegmentsForVisualSlice,
} from '../utils/highlight.js';
import { useKittyKeyboardProtocol } from '../hooks/useKittyKeyboardProtocol.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';
import { useUIState } from '../contexts/UIStateContext.js';
import { StreamingState } from '../types.js';
import { isSlashCommand } from '../utils/commandUtils.js';
import { useMouse, type MouseEvent } from '../contexts/MouseContext.js';
/**
* Returns if the terminal can be trusted to handle paste events atomically
* rather than potentially sending multiple paste events separated by line
* breaks which could trigger unintended command execution.
*/
export function isTerminalPasteTrusted(
kittyProtocolSupported: boolean,
): boolean {
// Ideally we could trust all VSCode family terminals as well but it appears
// we cannot as Cursor users on windows reported being impacted by this
// issue (https://github.com/google-gemini/gemini-cli/issues/3763).
return kittyProtocolSupported;
}
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;
onSuggestionsVisibilityChange?: (visible: boolean) => void;
vimHandleInput?: (key: Key) => boolean;
isEmbeddedShellFocused?: boolean;
setQueueErrorMessage: (message: string | null) => void;
streamingState: StreamingState;
popAllMessages?: (onPop: (messages: string | undefined) => void) => void;
suggestionsPosition?: 'above' | 'below';
}
// The input content, input container, and input suggestions list may have different widths
export const calculatePromptWidths = (mainContentWidth: number) => {
const FRAME_PADDING_AND_BORDER = 4; // Border (2) + padding (2)
const PROMPT_PREFIX_WIDTH = 2; // '> ' or '! '
const FRAME_OVERHEAD = FRAME_PADDING_AND_BORDER + PROMPT_PREFIX_WIDTH;
const suggestionsWidth = Math.max(20, mainContentWidth);
return {
inputWidth: Math.max(mainContentWidth - FRAME_OVERHEAD, 1),
containerWidth: mainContentWidth,
suggestionsWidth,
frameOverhead: FRAME_OVERHEAD,
} as const;
};
export const InputPrompt: React.FC<InputPromptProps> = ({
buffer,
onSubmit,
userMessages,
onClearScreen,
config,
slashCommands,
commandContext,
placeholder = ' Type your message or @path/to/file',
focus = true,
inputWidth,
suggestionsWidth,
shellModeActive,
setShellModeActive,
approvalMode,
onEscapePromptChange,
onSuggestionsVisibilityChange,
vimHandleInput,
isEmbeddedShellFocused,
setQueueErrorMessage,
streamingState,
popAllMessages,
suggestionsPosition = 'below',
}) => {
const kittyProtocol = useKittyKeyboardProtocol();
const isShellFocused = useShellFocusState();
const { mainAreaWidth } = useUIState();
const [justNavigatedHistory, setJustNavigatedHistory] = useState(false);
const escPressCount = useRef(0);
const [showEscapePrompt, setShowEscapePrompt] = useState(false);
const escapeTimerRef = useRef<NodeJS.Timeout | null>(null);
const [recentUnsafePasteTime, setRecentUnsafePasteTime] = useState<
number | null
>(null);
const pasteTimeoutRef = useRef<NodeJS.Timeout | null>(null);
const innerBoxRef = useRef<DOMElement>(null);
const [dirs, setDirs] = useState<readonly string[]>(
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<number>(-1);
const shellHistory = useShellHistory(config.getProjectRoot());
const shellHistoryData = shellHistory.history;
const completion = useCommandCompletion(
buffer,
dirs,
config.getTargetDir(),
slashCommands,
commandContext,
reverseSearchActive,
shellModeActive,
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;
}
escPressCount.current = 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 handleSubmit = useCallback(
(submittedValue: string) => {
const trimmedMessage = submittedValue.trim();
const isSlash = isSlashCommand(trimmedMessage);
const isShell = shellModeActive;
if (
(isSlash || isShell) &&
streamingState === StreamingState.Responding
) {
setQueueErrorMessage(
`${isShell ? 'Shell' : 'Slash'} commands cannot be queued`,
);
return;
}
handleSubmitAndClear(trimmedMessage);
},
[
handleSubmitAndClear,
shellModeActive,
streamingState,
setQueueErrorMessage,
],
);
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,
]);
// Helper function to handle loading queued messages into input
// Returns true if we should continue with input history navigation
const tryLoadQueuedMessages = useCallback(() => {
if (buffer.text.trim() === '' && popAllMessages) {
popAllMessages((allMessages) => {
if (allMessages) {
buffer.setText(allMessages);
} else {
// No queued messages, proceed with input history
inputHistory.navigateUp();
}
});
return true; // We handled the up arrow key
}
return false;
}, [buffer, popAllMessages, inputHistory]);
// 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 handleMouse = useCallback(
(event: MouseEvent) => {
if (event.name === 'left-press' && innerBoxRef.current) {
const { x, y, width, height } = getBoundingBox(innerBoxRef.current);
// Terminal mouse events are 1-based, Ink layout is 0-based.
const mouseX = event.col - 1;
const mouseY = event.row - 1;
if (
mouseX >= x &&
mouseX < x + width &&
mouseY >= y &&
mouseY < y + height
) {
const relX = mouseX - x;
const relY = mouseY - y;
const visualRow = buffer.visualScrollRow + relY;
buffer.moveToVisualPosition(visualRow, relX);
return true;
}
}
return false;
},
[buffer],
);
useMouse(handleMouse, { isActive: focus && !isEmbeddedShellFocused });
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
if (!isTerminalPasteTrusted(kittyProtocol.supported)) {
setRecentUnsafePasteTime(Date.now());
// Clear any existing paste timeout
if (pasteTimeoutRef.current) {
clearTimeout(pasteTimeoutRef.current);
}
// Clear the paste protection after a very short delay to prevent
// false positives.
// Due to how we use a reducer for text buffer state updates, it is
// reasonable to expect that key events that are really part of the
// same paste will be processed in the same event loop tick. 40ms
// is chosen arbitrarily as it is faster than a typical human
// could go from pressing paste to pressing enter. The fastest typists
// can type at 200 words per minute which roughly translates to 50ms
// per letter.
pasteTimeoutRef.current = setTimeout(() => {
setRecentUnsafePasteTime(null);
pasteTimeoutRef.current = null;
}, 40);
}
// 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.current > 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.current === 0) {
if (buffer.text === '') {
return;
}
escPressCount.current = 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)) {
handleSubmit(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;
}
}
// Handle Tab key for ghost text acceptance
if (
key.name === 'tab' &&
!completion.showSuggestions &&
completion.promptCompletion.text
) {
completion.promptCompletion.accept();
return;
}
if (!shellModeActive) {
if (keyMatchers[Command.REVERSE_SEARCH](key)) {
setCommandSearchActive(true);
setTextBeforeReverseSearch(buffer.text);
setCursorPosition(buffer.cursor);
return;
}
if (keyMatchers[Command.HISTORY_UP](key)) {
// Check for queued messages first when input is empty
// If no queued messages, inputHistory.navigateUp() is called inside tryLoadQueuedMessages
if (tryLoadQueuedMessages()) {
return;
}
// Only navigate history if popAllMessages doesn't exist
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))
) {
// Check for queued messages first when input is empty
// If no queued messages, inputHistory.navigateUp() is called inside tryLoadQueuedMessages
if (tryLoadQueuedMessages()) {
return;
}
// Only navigate history if popAllMessages doesn't exist
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 (recentUnsafePasteTime !== null) {
// Paste occurred recently in a terminal where we don't trust pastes
// to be reported correctly so assume this paste was really a
// newline that was part of the paste.
// This has the added benefit that in the worst case at least users
// get some feedback that their keypress was handled rather than
// wondering why it was completey ignored.
buffer.newline();
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 {
handleSubmit(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);
// Clear ghost text when user types regular characters (not navigation/control keys)
if (
completion.promptCompletion.text &&
key.sequence &&
key.sequence.length === 1 &&
!key.ctrl &&
!key.meta
) {
completion.promptCompletion.clear();
setExpandedSuggestionIndex(-1);
}
},
[
focus,
buffer,
completion,
shellModeActive,
setShellModeActive,
onClearScreen,
inputHistory,
handleSubmitAndClear,
handleSubmit,
shellHistory,
reverseSearchCompletion,
handleClipboardImage,
resetCompletionState,
showEscapePrompt,
resetEscapeState,
vimHandleInput,
reverseSearchActive,
textBeforeReverseSearch,
cursorPosition,
recentUnsafePasteTime,
commandSearchActive,
commandSearchCompletion,
kittyProtocol.supported,
tryLoadQueuedMessages,
],
);
useKeypress(handleInput, { isActive: !isEmbeddedShellFocused });
const linesToRender = buffer.viewportVisualLines;
const [cursorVisualRowAbsolute, cursorVisualColAbsolute] =
buffer.visualCursor;
const scrollVisualRow = buffer.visualScrollRow;
const getGhostTextLines = useCallback(() => {
if (
!completion.promptCompletion.text ||
!buffer.text ||
!completion.promptCompletion.text.startsWith(buffer.text)
) {
return { inlineGhost: '', additionalLines: [] };
}
const ghostSuffix = completion.promptCompletion.text.slice(
buffer.text.length,
);
if (!ghostSuffix) {
return { inlineGhost: '', additionalLines: [] };
}
const currentLogicalLine = buffer.lines[buffer.cursor[0]] || '';
const cursorCol = buffer.cursor[1];
const textBeforeCursor = cpSlice(currentLogicalLine, 0, cursorCol);
const usedWidth = stringWidth(textBeforeCursor);
const remainingWidth = Math.max(0, inputWidth - usedWidth);
const ghostTextLinesRaw = ghostSuffix.split('\n');
const firstLineRaw = ghostTextLinesRaw.shift() || '';
let inlineGhost = '';
let remainingFirstLine = '';
if (stringWidth(firstLineRaw) <= remainingWidth) {
inlineGhost = firstLineRaw;
} else {
const words = firstLineRaw.split(' ');
let currentLine = '';
let wordIdx = 0;
for (const word of words) {
const prospectiveLine = currentLine ? `${currentLine} ${word}` : word;
if (stringWidth(prospectiveLine) > remainingWidth) {
break;
}
currentLine = prospectiveLine;
wordIdx++;
}
inlineGhost = currentLine;
if (words.length > wordIdx) {
remainingFirstLine = words.slice(wordIdx).join(' ');
}
}
const linesToWrap = [];
if (remainingFirstLine) {
linesToWrap.push(remainingFirstLine);
}
linesToWrap.push(...ghostTextLinesRaw);
const remainingGhostText = linesToWrap.join('\n');
const additionalLines: string[] = [];
if (remainingGhostText) {
const textLines = remainingGhostText.split('\n');
for (const textLine of textLines) {
const words = textLine.split(' ');
let currentLine = '';
for (const word of words) {
const prospectiveLine = currentLine ? `${currentLine} ${word}` : word;
const prospectiveWidth = stringWidth(prospectiveLine);
if (prospectiveWidth > inputWidth) {
if (currentLine) {
additionalLines.push(currentLine);
}
let wordToProcess = word;
while (stringWidth(wordToProcess) > inputWidth) {
let part = '';
const wordCP = toCodePoints(wordToProcess);
let partWidth = 0;
let splitIndex = 0;
for (let i = 0; i < wordCP.length; i++) {
const char = wordCP[i];
const charWidth = stringWidth(char);
if (partWidth + charWidth > inputWidth) {
break;
}
part += char;
partWidth += charWidth;
splitIndex = i + 1;
}
additionalLines.push(part);
wordToProcess = cpSlice(wordToProcess, splitIndex);
}
currentLine = wordToProcess;
} else {
currentLine = prospectiveLine;
}
}
if (currentLine) {
additionalLines.push(currentLine);
}
}
}
return { inlineGhost, additionalLines };
}, [
completion.promptCompletion.text,
buffer.text,
buffer.lines,
buffer.cursor,
inputWidth,
]);
const { inlineGhost, additionalLines } = getGhostTextLines();
const getActiveCompletion = () => {
if (commandSearchActive) return commandSearchCompletion;
if (reverseSearchActive) return reverseSearchCompletion;
return completion;
};
const activeCompletion = getActiveCompletion();
const shouldShowSuggestions = activeCompletion.showSuggestions;
useEffect(() => {
if (onSuggestionsVisibilityChange) {
onSuggestionsVisibilityChange(shouldShowSuggestions);
}
}, [shouldShowSuggestions, onSuggestionsVisibilityChange]);
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 = 'Shell mode';
} else if (showYoloStyling) {
statusColor = theme.status.error;
statusText = 'YOLO mode';
} else if (showAutoAcceptStyling) {
statusColor = theme.status.warning;
statusText = 'Accepting edits';
}
const suggestionsNode = shouldShowSuggestions ? (
<Box paddingRight={2}>
<SuggestionsDisplay
suggestions={activeCompletion.suggestions}
activeIndex={activeCompletion.activeSuggestionIndex}
isLoading={activeCompletion.isLoadingSuggestions}
width={suggestionsWidth}
scrollOffset={activeCompletion.visibleStartIndex}
userInput={buffer.text}
mode={
buffer.text.startsWith('/') &&
!reverseSearchActive &&
!commandSearchActive
? 'slash'
: 'reverse'
}
expandedIndex={expandedSuggestionIndex}
/>
</Box>
) : null;
return (
<>
{suggestionsPosition === 'above' && suggestionsNode}
<Box
borderStyle="round"
borderColor={
isShellFocused && !isEmbeddedShellFocused
? (statusColor ?? theme.border.focused)
: theme.border.default
}
paddingX={1}
width={mainAreaWidth}
flexDirection="row"
alignItems="flex-start"
minHeight={3}
>
<Text
color={statusColor ?? theme.text.accent}
aria-label={statusText || undefined}
>
{shellModeActive ? (
reverseSearchActive ? (
<Text
color={theme.text.link}
aria-label={SCREEN_READER_USER_PREFIX}
>
(r:){' '}
</Text>
) : (
'!'
)
) : commandSearchActive ? (
<Text color={theme.text.accent}>(r:) </Text>
) : showYoloStyling ? (
'*'
) : (
'>'
)}{' '}
</Text>
<Box flexGrow={1} flexDirection="column" ref={innerBoxRef}>
{buffer.text.length === 0 && placeholder ? (
showCursor ? (
<Text>
{chalk.inverse(placeholder.slice(0, 1))}
<Text color={theme.text.secondary}>{placeholder.slice(1)}</Text>
</Text>
) : (
<Text color={theme.text.secondary}>{placeholder}</Text>
)
) : (
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(
<Text key={`token-${segIdx}`} color={color}>
{display}
</Text>,
);
});
const currentLineGhost = isOnCursorLine ? inlineGhost : '';
if (
isOnCursorLine &&
cursorVisualColAbsolute === cpLen(lineText)
) {
if (!currentLineGhost) {
renderedLine.push(
<Text key={`cursor-end-${cursorVisualColAbsolute}`}>
{showCursor ? chalk.inverse(' ') : ' '}
</Text>,
);
}
}
const showCursorBeforeGhost =
focus &&
isOnCursorLine &&
cursorVisualColAbsolute === cpLen(lineText) &&
currentLineGhost;
return (
<Box key={`line-${visualIdxInRenderedSet}`} height={1}>
<Text>
{renderedLine}
{showCursorBeforeGhost &&
(showCursor ? chalk.inverse(' ') : ' ')}
{currentLineGhost && (
<Text color={theme.text.secondary}>
{currentLineGhost}
</Text>
)}
</Text>
</Box>
);
})
.concat(
additionalLines.map((ghostLine, index) => {
const padding = Math.max(
0,
inputWidth - stringWidth(ghostLine),
);
return (
<Text
key={`ghost-line-${index}`}
color={theme.text.secondary}
>
{ghostLine}
{' '.repeat(padding)}
</Text>
);
}),
)
)}
</Box>
</Box>
{suggestionsPosition === 'below' && suggestionsNode}
</>
);
};