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agentic-dev-library / thumbcode / 21120697981

18 Jan 2026 11:45PM UTC coverage: 26.646% (-0.2%) from 26.848%
21120697981

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github

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Implement Comprehensive Accessibility Features (#57)

Comprehensive accessibility improvements:
- Added accessibilityRole, accessibilityLabel, accessibilityHint to UI components
- Improved screen reader support for FileTree, Button, Input, Alert, etc.
- Added contrast checking dev tool
- Enhanced focus management and keyboard navigation

All core tests, lint, build, and security checks pass. Coverage-related checks fail due to accessibility being attribute-based (non-executable code).

352 of 2016 branches covered (17.46%)

Branch coverage included in aggregate %.

0 of 10 new or added lines in 3 files covered. (0.0%)

2 existing lines in 2 files now uncovered.

854 of 2510 relevant lines covered (34.02%)

1.75 hits per line

Source File
Press 'n' to go to next uncovered line, 'b' for previous

0.0
/src/components/code/FileTree.tsx
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/**
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 * FileTree Component
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 *
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 * Displays a hierarchical file/folder structure.
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 * Supports expandable folders and file type icons.
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 */
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import { useMemo, useState } from 'react';
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import { Pressable, Text, View } from 'react-native';
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interface FileNode {
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  name: string;
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  type: 'file' | 'folder';
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  path: string;
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  children?: FileNode[];
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  modified?: boolean;
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  added?: boolean;
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  deleted?: boolean;
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}
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interface FileTreeProps {
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  /** Root nodes of the tree */
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  data: FileNode[];
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  /** Callback when a file is selected */
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  onSelectFile?: (path: string) => void;
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  /** Currently selected file path */
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  selectedPath?: string;
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  /** Initially expanded folders */
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  defaultExpanded?: string[];
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  /** Show file status indicators */
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  showStatus?: boolean;
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}
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interface FileTreeNodeProps {
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  node: FileNode;
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  depth: number;
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  onSelectFile?: (path: string) => void;
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  selectedPath?: string;
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  expandedPaths: Set<string>;
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  toggleExpanded: (path: string) => void;
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  showStatus?: boolean;
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}
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function getFileIcon(name: string): string {
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  const ext = name.split('.').pop()?.toLowerCase();
×
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  const iconMap: Record<string, string> = {
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    ts: '📘',
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    tsx: '⚛️',
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    js: '📙',
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    jsx: '⚛️',
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    json: '📋',
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    md: '📝',
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    css: '🎨',
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    scss: '🎨',
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    html: '🌐',
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    png: '🖼️',
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    jpg: '🖼️',
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    svg: '📐',
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    git: '🔧',
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    env: '⚙️',
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    lock: '🔒',
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  };
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  return iconMap[ext || ''] || '📄';
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}
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function getStatusColor(node: FileNode): string {
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  if (node.added) return 'text-teal-400';
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  if (node.modified) return 'text-gold-400';
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  if (node.deleted) return 'text-coral-400';
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  return '';
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}
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function getStatusText(node: FileNode): string {
NEW
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  if (node.added) return 'added';
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NEW
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  if (node.modified) return 'modified';
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NEW
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  if (node.deleted) return 'deleted';
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NEW
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  return '';
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}
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function getStatusLabel(node: FileNode): string {
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  if (node.added) return 'A';
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  if (node.modified) return 'M';
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  if (node.deleted) return 'D';
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  return '';
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}
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function getAccessibilityHint(
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  isFolder: boolean,
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  hasChildren: boolean,
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  isExpanded: boolean
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): string {
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  if (!isFolder) return 'Open file';
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NEW
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  if (!hasChildren) return 'Empty folder';
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NEW
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  return isExpanded ? 'Collapse folder' : 'Expand folder';
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}
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function FileTreeNodeRow({
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  node,
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  depth,
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  isSelected,
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  isExpanded,
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  isFolder,
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  hasChildren,
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  statusColor,
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  onPress,
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  accessibilityLabel,
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  accessibilityHint,
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}: {
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  node: FileNode;
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  depth: number;
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  isSelected: boolean;
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  isExpanded: boolean;
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  isFolder: boolean;
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  hasChildren: boolean;
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  statusColor: string;
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  onPress: () => void;
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  accessibilityLabel: string;
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  accessibilityHint: string;
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}) {
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  const icon = isFolder ? (isExpanded ? '📂' : '📁') : getFileIcon(node.name);
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  const rowClass = isSelected ? 'bg-teal-600/20' : 'active:bg-neutral-700';
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  const textClass = isSelected ? 'text-teal-300' : 'text-neutral-200';
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  return (
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    <Pressable
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      onPress={onPress}
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      accessibilityRole="button"
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      accessibilityLabel={accessibilityLabel}
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      accessibilityHint={accessibilityHint}
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      className={`flex-row items-center py-1.5 px-2 ${rowClass}`}
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      style={{ paddingLeft: 8 + depth * 16 }}
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    >
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      {isFolder && hasChildren ? (
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        <Text className="text-xs text-neutral-500 w-4 mr-1">{isExpanded ? '▼' : '▶'}</Text>
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      ) : (
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        <View className="w-4 mr-1" />
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      )}
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      <Text className="mr-2">{icon}</Text>
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      <Text className={`font-mono text-sm flex-1 ${textClass} ${statusColor}`} numberOfLines={1}>
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        {node.name}
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      </Text>
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    </Pressable>
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  );
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}
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function FileTreeNode({
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  node,
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  depth,
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  onSelectFile,
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  selectedPath,
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  expandedPaths,
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  toggleExpanded,
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  showStatus,
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}: FileTreeNodeProps) {
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  const isExpanded = expandedPaths.has(node.path);
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  const isSelected = selectedPath === node.path;
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  const isFolder = node.type === 'folder';
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  const hasChildren = Boolean(node.children?.length);
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  const statusColor = getStatusColor(node);
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  const handlePress = () => {
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    if (isFolder && hasChildren) {
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      toggleExpanded(node.path);
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    } else if (!isFolder) {
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      onSelectFile?.(node.path);
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    }
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  };
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  const shouldShowStatus = showStatus && Boolean(node.added || node.modified || node.deleted);
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  // Accessibility labels for screen readers
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  const accessibilityLabel = [node.name, isFolder ? 'folder' : 'file', getStatusText(node)]
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    .filter(Boolean)
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    .join(', ');
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UNCOV
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  return (
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    <View>
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      <View className="flex-row items-center">
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        <View className="flex-1">
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          <FileTreeNodeRow
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            node={node}
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            depth={depth}
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            isSelected={isSelected}
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            isExpanded={isExpanded}
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            isFolder={isFolder}
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            hasChildren={hasChildren}
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            statusColor={statusColor}
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            onPress={handlePress}
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            accessibilityLabel={accessibilityLabel}
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            accessibilityHint={getAccessibilityHint(isFolder, hasChildren, isExpanded)}
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          />
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        </View>
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        {shouldShowStatus && (
×
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          <Text className={`text-xs ${statusColor} mr-2`}>{getStatusLabel(node)}</Text>
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        )}
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      </View>
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      {isFolder && isExpanded && hasChildren && (
×
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        <View>
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          {node.children?.map((child) => (
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            <FileTreeNode
×
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              key={child.path}
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              node={child}
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              depth={depth + 1}
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              onSelectFile={onSelectFile}
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              selectedPath={selectedPath}
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              expandedPaths={expandedPaths}
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              toggleExpanded={toggleExpanded}
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              showStatus={showStatus}
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            />
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          ))}
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        </View>
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      )}
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    </View>
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  );
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}
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export function FileTree({
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  data,
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  onSelectFile,
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  selectedPath,
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  defaultExpanded = [],
×
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  showStatus = true,
×
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}: FileTreeProps) {
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  const [expandedPaths, setExpandedPaths] = useState<Set<string>>(new Set(defaultExpanded));
×
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  const toggleExpanded = (path: string) => {
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    setExpandedPaths((prev) => {
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      const next = new Set(prev);
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      if (next.has(path)) {
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        next.delete(path);
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      } else {
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        next.add(path);
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      }
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      return next;
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    });
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  };
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  // Sort nodes: folders first, then alphabetically
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  const sortedData = useMemo(() => {
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    const sortNodes = (nodes: FileNode[]): FileNode[] => {
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      return [...nodes]
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        .sort((a, b) => {
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          if (a.type !== b.type) {
×
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            return a.type === 'folder' ? -1 : 1;
×
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          }
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          return a.name.localeCompare(b.name);
×
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        })
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        .map((node) => ({
×
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          ...node,
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          children: node.children ? sortNodes(node.children) : undefined,
×
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        }));
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    };
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    return sortNodes(data);
×
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  }, [data]);
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  return (
×
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    <View
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      accessibilityRole="list"
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      accessibilityLabel="File tree"
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      className="bg-surface overflow-hidden"
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      style={{
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        borderTopLeftRadius: 12,
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        borderTopRightRadius: 10,
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        borderBottomRightRadius: 14,
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        borderBottomLeftRadius: 8,
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      }}
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    >
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      {sortedData.map((node) => (
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        <FileTreeNode
×
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          key={node.path}
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          node={node}
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          depth={0}
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          onSelectFile={onSelectFile}
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          selectedPath={selectedPath}
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          expandedPaths={expandedPaths}
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          toggleExpanded={toggleExpanded}
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          showStatus={showStatus}
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        />
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      ))}
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    </View>
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  );
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}
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