Files
gemini-cli/packages/cli/src/ui/components/shared/BaseSettingsDialog.tsx
2026-01-28 00:43:37 +00:00

625 lines
20 KiB
TypeScript

/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import React, { useState, useEffect, useCallback, useRef } from 'react';
import { Box, Text } from 'ink';
import chalk from 'chalk';
import { theme } from '../../semantic-colors.js';
import type { LoadableSettingScope } from '../../../config/settings.js';
import { getScopeItems } from '../../../utils/dialogScopeUtils.js';
import { RadioButtonSelect } from './RadioButtonSelect.js';
import { TextInput } from './TextInput.js';
import type { TextBuffer } from './text-buffer.js';
import {
cpSlice,
cpLen,
stripUnsafeCharacters,
cpIndexToOffset,
} from '../../utils/textUtils.js';
import { useKeypress, type Key } from '../../hooks/useKeypress.js';
import { keyMatchers, Command } from '../../keyMatchers.js';
/**
* Represents a single item in the settings dialog.
*/
export interface SettingsDialogItem {
/** Unique identifier for the item */
key: string;
/** Display label */
label: string;
/** Optional description below label */
description?: string;
/** Item type for determining interaction behavior */
type: 'boolean' | 'number' | 'string' | 'enum';
/** Pre-formatted display value (with * if modified) */
displayValue: string;
/** Grey out value (at default) */
isGreyedOut?: boolean;
/** Scope message e.g., "(Modified in Workspace)" */
scopeMessage?: string;
/** Raw value for edit mode initialization */
rawValue?: string | number | boolean;
}
/**
* Props for BaseSettingsDialog component.
*/
export interface BaseSettingsDialogProps {
// Header
/** Dialog title displayed at the top */
title: string;
/** Optional border color for the dialog */
borderColor?: string;
// Search (optional feature)
/** Whether to show the search input. Default: true */
searchEnabled?: boolean;
/** Placeholder text for search input. Default: "Search to filter" */
searchPlaceholder?: string;
/** Text buffer for search input */
searchBuffer?: TextBuffer;
// Items - parent provides the list
/** List of items to display */
items: SettingsDialogItem[];
// Scope selector
/** Whether to show the scope selector. Default: true */
showScopeSelector?: boolean;
/** Currently selected scope */
selectedScope: LoadableSettingScope;
/** Callback when scope changes */
onScopeChange?: (scope: LoadableSettingScope) => void;
// Layout
/** Maximum number of items to show at once */
maxItemsToShow: number;
/** Maximum label width for alignment */
maxLabelWidth?: number;
// Action callbacks
/** Called when a boolean/enum item is toggled */
onItemToggle: (key: string, item: SettingsDialogItem) => void;
/** Called when edit mode is committed with new value */
onEditCommit: (
key: string,
newValue: string,
item: SettingsDialogItem,
) => void;
/** Called when Ctrl+C is pressed to clear/reset an item */
onItemClear: (key: string, item: SettingsDialogItem) => void;
/** Called when dialog should close */
onClose: () => void;
/** Optional custom key handler for parent-specific keys. Return true if handled. */
onKeyPress?: (
key: Key,
currentItem: SettingsDialogItem | undefined,
) => boolean;
// Optional extra content below help text (for restart prompt, etc.)
/** Optional footer content (e.g., restart prompt) */
footerContent?: React.ReactNode;
}
/**
* A base settings dialog component that handles rendering, layout, and keyboard navigation.
* Parent components handle business logic (saving, filtering, etc.) via callbacks.
*/
export function BaseSettingsDialog({
title,
borderColor,
searchEnabled = true,
searchPlaceholder = 'Search to filter',
searchBuffer,
items,
showScopeSelector = true,
selectedScope,
onScopeChange,
maxItemsToShow,
maxLabelWidth,
onItemToggle,
onEditCommit,
onItemClear,
onClose,
onKeyPress,
footerContent,
}: BaseSettingsDialogProps): React.JSX.Element {
// Internal state
const [activeIndex, setActiveIndex] = useState(0);
const [scrollOffset, setScrollOffset] = useState(0);
const [focusSection, setFocusSection] = useState<'settings' | 'scope'>(
'settings',
);
const [editingKey, setEditingKey] = useState<string | null>(null);
const [editBuffer, setEditBuffer] = useState('');
const [editCursorPos, setEditCursorPos] = useState(0);
const [cursorVisible, setCursorVisible] = useState(true);
const prevItemsRef = useRef(items);
// Preserve focus when items change (e.g., search filter)
useEffect(() => {
const prevItems = prevItemsRef.current;
if (prevItems !== items) {
const prevActiveItem = prevItems[activeIndex];
if (prevActiveItem) {
const newIndex = items.findIndex((i) => i.key === prevActiveItem.key);
if (newIndex !== -1) {
// Item still exists in the filtered list, keep focus on it
setActiveIndex(newIndex);
// Adjust scroll offset to ensure the item is visible
let newScroll = scrollOffset;
if (newIndex < scrollOffset) newScroll = newIndex;
else if (newIndex >= scrollOffset + maxItemsToShow)
newScroll = newIndex - maxItemsToShow + 1;
const maxScroll = Math.max(0, items.length - maxItemsToShow);
setScrollOffset(Math.min(newScroll, maxScroll));
} else {
// Item was filtered out, reset to the top
setActiveIndex(0);
setScrollOffset(0);
}
} else {
setActiveIndex(0);
setScrollOffset(0);
}
prevItemsRef.current = items;
}
}, [items, activeIndex, scrollOffset, maxItemsToShow]);
// Cursor blink effect
useEffect(() => {
if (!editingKey) return;
setCursorVisible(true);
const interval = setInterval(() => {
setCursorVisible((v) => !v);
}, 500);
return () => clearInterval(interval);
}, [editingKey]);
// Ensure focus stays on settings when scope selection is hidden
useEffect(() => {
if (!showScopeSelector && focusSection === 'scope') {
setFocusSection('settings');
}
}, [showScopeSelector, focusSection]);
// Scope selector items
const scopeItems = getScopeItems().map((item) => ({
...item,
key: item.value,
}));
// Calculate visible items based on scroll offset
const visibleItems = items.slice(scrollOffset, scrollOffset + maxItemsToShow);
// Show scroll indicators if there are more items than can be displayed
const showScrollUp = items.length > maxItemsToShow;
const showScrollDown = items.length > maxItemsToShow;
// Get current item
const currentItem = items[activeIndex];
// Start editing a field
const startEditing = useCallback((key: string, initialValue: string) => {
setEditingKey(key);
setEditBuffer(initialValue);
setEditCursorPos(cpLen(initialValue));
setCursorVisible(true);
}, []);
// Commit edit and exit edit mode
const commitEdit = useCallback(() => {
if (editingKey && currentItem) {
onEditCommit(editingKey, editBuffer, currentItem);
}
setEditingKey(null);
setEditBuffer('');
setEditCursorPos(0);
}, [editingKey, editBuffer, currentItem, onEditCommit]);
// Handle scope highlight (for RadioButtonSelect)
const handleScopeHighlight = useCallback(
(scope: LoadableSettingScope) => {
onScopeChange?.(scope);
},
[onScopeChange],
);
// Handle scope select (for RadioButtonSelect)
const handleScopeSelect = useCallback(
(scope: LoadableSettingScope) => {
onScopeChange?.(scope);
},
[onScopeChange],
);
// Keyboard handling
useKeypress(
(key: Key) => {
// Let parent handle custom keys first
if (onKeyPress?.(key, currentItem)) {
return;
}
// Edit mode handling
if (editingKey) {
const item = items.find((i) => i.key === editingKey);
const type = item?.type ?? 'string';
// Navigation within edit buffer
if (keyMatchers[Command.MOVE_LEFT](key)) {
setEditCursorPos((p) => Math.max(0, p - 1));
return;
}
if (keyMatchers[Command.MOVE_RIGHT](key)) {
setEditCursorPos((p) => Math.min(cpLen(editBuffer), p + 1));
return;
}
if (keyMatchers[Command.HOME](key)) {
setEditCursorPos(0);
return;
}
if (keyMatchers[Command.END](key)) {
setEditCursorPos(cpLen(editBuffer));
return;
}
// Backspace
if (keyMatchers[Command.DELETE_CHAR_LEFT](key)) {
if (editCursorPos > 0) {
setEditBuffer((b) => {
const before = cpSlice(b, 0, editCursorPos - 1);
const after = cpSlice(b, editCursorPos);
return before + after;
});
setEditCursorPos((p) => p - 1);
}
return;
}
// Delete
if (keyMatchers[Command.DELETE_CHAR_RIGHT](key)) {
if (editCursorPos < cpLen(editBuffer)) {
setEditBuffer((b) => {
const before = cpSlice(b, 0, editCursorPos);
const after = cpSlice(b, editCursorPos + 1);
return before + after;
});
}
return;
}
// Escape in edit mode - commit (consistent with SettingsDialog)
if (keyMatchers[Command.ESCAPE](key)) {
commitEdit();
return;
}
// Enter in edit mode - commit
if (keyMatchers[Command.RETURN](key)) {
commitEdit();
return;
}
// Up/Down in edit mode - commit and navigate
if (keyMatchers[Command.DIALOG_NAVIGATION_UP](key)) {
commitEdit();
const newIndex = activeIndex > 0 ? activeIndex - 1 : items.length - 1;
setActiveIndex(newIndex);
if (newIndex === items.length - 1) {
setScrollOffset(Math.max(0, items.length - maxItemsToShow));
} else if (newIndex < scrollOffset) {
setScrollOffset(newIndex);
}
return;
}
if (keyMatchers[Command.DIALOG_NAVIGATION_DOWN](key)) {
commitEdit();
const newIndex = activeIndex < items.length - 1 ? activeIndex + 1 : 0;
setActiveIndex(newIndex);
if (newIndex === 0) {
setScrollOffset(0);
} else if (newIndex >= scrollOffset + maxItemsToShow) {
setScrollOffset(newIndex - maxItemsToShow + 1);
}
return;
}
// Character input
let ch = key.sequence;
let isValidChar = false;
if (type === 'number') {
isValidChar = /[0-9\-+.]/.test(ch);
} else {
isValidChar = ch.length === 1 && ch.charCodeAt(0) >= 32;
// Sanitize string input to prevent unsafe characters
ch = stripUnsafeCharacters(ch);
}
if (isValidChar && ch.length > 0) {
setEditBuffer((b) => {
const before = cpSlice(b, 0, editCursorPos);
const after = cpSlice(b, editCursorPos);
return before + ch + after;
});
setEditCursorPos((p) => p + 1);
}
return;
}
// Not in edit mode - handle navigation and actions
if (focusSection === 'settings') {
// Up/Down navigation with wrap-around
if (keyMatchers[Command.DIALOG_NAVIGATION_UP](key)) {
const newIndex = activeIndex > 0 ? activeIndex - 1 : items.length - 1;
setActiveIndex(newIndex);
if (newIndex === items.length - 1) {
setScrollOffset(Math.max(0, items.length - maxItemsToShow));
} else if (newIndex < scrollOffset) {
setScrollOffset(newIndex);
}
return true;
}
if (keyMatchers[Command.DIALOG_NAVIGATION_DOWN](key)) {
const newIndex = activeIndex < items.length - 1 ? activeIndex + 1 : 0;
setActiveIndex(newIndex);
if (newIndex === 0) {
setScrollOffset(0);
} else if (newIndex >= scrollOffset + maxItemsToShow) {
setScrollOffset(newIndex - maxItemsToShow + 1);
}
return true;
}
// Enter - toggle or start edit
if (keyMatchers[Command.RETURN](key) && currentItem) {
if (currentItem.type === 'boolean' || currentItem.type === 'enum') {
onItemToggle(currentItem.key, currentItem);
} else {
// Start editing for string/number
const rawVal = currentItem.rawValue;
const initialValue = rawVal !== undefined ? String(rawVal) : '';
startEditing(currentItem.key, initialValue);
}
return true;
}
// Ctrl+L - clear/reset to default (using only Ctrl+L to avoid Ctrl+C exit conflict)
if (keyMatchers[Command.CLEAR_SCREEN](key) && currentItem) {
onItemClear(currentItem.key, currentItem);
return true;
}
// Number keys for quick edit on number fields
if (currentItem?.type === 'number' && /^[0-9]$/.test(key.sequence)) {
startEditing(currentItem.key, key.sequence);
return true;
}
}
// Tab - switch focus section
if (key.name === 'tab' && showScopeSelector) {
setFocusSection((s) => (s === 'settings' ? 'scope' : 'settings'));
return;
}
// Escape - close dialog
if (keyMatchers[Command.ESCAPE](key)) {
onClose();
return;
}
return;
},
{ isActive: true },
);
return (
<Box
borderStyle="round"
borderColor={borderColor ?? theme.border.default}
flexDirection="row"
padding={1}
width="100%"
height="100%"
>
<Box flexDirection="column" flexGrow={1}>
{/* Title */}
<Box marginX={1}>
<Text
bold={focusSection === 'settings' && !editingKey}
wrap="truncate"
>
{focusSection === 'settings' ? '> ' : ' '}
{title}{' '}
</Text>
</Box>
{/* Search input (if enabled) */}
{searchEnabled && searchBuffer && (
<Box
borderStyle="round"
borderColor={
editingKey
? theme.border.default
: focusSection === 'settings'
? theme.border.focused
: theme.border.default
}
paddingX={1}
height={3}
marginTop={1}
>
<TextInput
focus={focusSection === 'settings' && !editingKey}
buffer={searchBuffer}
placeholder={searchPlaceholder}
/>
</Box>
)}
<Box height={1} />
{/* Items list */}
{visibleItems.length === 0 ? (
<Box marginX={1} height={1} flexDirection="column">
<Text color={theme.text.secondary}>No matches found.</Text>
</Box>
) : (
<>
{showScrollUp && (
<Box marginX={1}>
<Text color={theme.text.secondary}></Text>
</Box>
)}
{visibleItems.map((item, idx) => {
const globalIndex = idx + scrollOffset;
const isActive =
focusSection === 'settings' && activeIndex === globalIndex;
// Compute display value with edit mode cursor
let displayValue: string;
if (editingKey === item.key) {
// Show edit buffer with cursor highlighting
if (cursorVisible && editCursorPos < cpLen(editBuffer)) {
// Cursor is in the middle or at start of text
const beforeCursor = cpSlice(editBuffer, 0, editCursorPos);
const atCursor = cpSlice(
editBuffer,
editCursorPos,
editCursorPos + 1,
);
const afterCursor = cpSlice(editBuffer, editCursorPos + 1);
displayValue =
beforeCursor + chalk.inverse(atCursor) + afterCursor;
} else if (editCursorPos >= cpLen(editBuffer)) {
// Cursor is at the end - show inverted space
displayValue =
editBuffer + (cursorVisible ? chalk.inverse(' ') : ' ');
} else {
// Cursor not visible
displayValue = editBuffer;
}
} else {
displayValue = item.displayValue;
}
return (
<React.Fragment key={item.key}>
<Box marginX={1} flexDirection="row" alignItems="flex-start">
<Box minWidth={2} flexShrink={0}>
<Text
color={
isActive ? theme.status.success : theme.text.secondary
}
>
{isActive ? '●' : ''}
</Text>
</Box>
<Box
flexDirection="row"
flexGrow={1}
minWidth={0}
alignItems="flex-start"
>
<Box
flexDirection="column"
width={maxLabelWidth}
minWidth={0}
>
<Text
color={
isActive ? theme.status.success : theme.text.primary
}
>
{item.label}
{item.scopeMessage && (
<Text color={theme.text.secondary}>
{' '}
{item.scopeMessage}
</Text>
)}
</Text>
<Text color={theme.text.secondary} wrap="truncate">
{item.description ?? ''}
</Text>
</Box>
<Box minWidth={3} />
<Box flexShrink={0}>
<Text
color={
isActive
? theme.status.success
: item.isGreyedOut
? theme.text.secondary
: theme.text.primary
}
terminalCursorFocus={
editingKey === item.key && cursorVisible
}
terminalCursorPosition={cpIndexToOffset(
editBuffer,
editCursorPos,
)}
>
{displayValue}
</Text>
</Box>
</Box>
</Box>
<Box height={1} />
</React.Fragment>
);
})}
{showScrollDown && (
<Box marginX={1}>
<Text color={theme.text.secondary}></Text>
</Box>
)}
</>
)}
<Box height={1} />
{/* Scope Selection */}
{showScopeSelector && (
<Box marginX={1} flexDirection="column">
<Text bold={focusSection === 'scope'} wrap="truncate">
{focusSection === 'scope' ? '> ' : ' '}Apply To
</Text>
<RadioButtonSelect
items={scopeItems}
initialIndex={scopeItems.findIndex(
(item) => item.value === selectedScope,
)}
onSelect={handleScopeSelect}
onHighlight={handleScopeHighlight}
isFocused={focusSection === 'scope'}
showNumbers={focusSection === 'scope'}
priority={focusSection === 'scope'}
/>
</Box>
)}
<Box height={1} />
{/* Help text */}
<Box marginX={1}>
<Text color={theme.text.secondary}>
(Use Enter to select, Ctrl+L to reset
{showScopeSelector ? ', Tab to change focus' : ''}, Esc to close)
</Text>
</Box>
{/* Footer content (e.g., restart prompt) */}
{footerContent && <Box marginX={1}>{footerContent}</Box>}
</Box>
</Box>
);
}