sinanisler
1654 lines
54 KiB
JavaScript
1654 lines
54 KiB
JavaScript
/*
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===========================================
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ACCESSIBILITY WIDGET - SHADOW DOM VERSION
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A comprehensive web accessibility tool
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===========================================
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*/
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// ===========================================
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// CONFIGURATION VARIABLES
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// ===========================================
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// Default configuration - can be overridden by user
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const DEFAULT_WIDGET_CONFIG = {
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// Core Features
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enableHighContrast: true,
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enableBiggerText: true,
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enableTextSpacing: true,
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enablePauseAnimations: true,
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enableHideImages: true,
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enableDyslexiaFont: true,
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enableBiggerCursor: true,
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enableLineHeight: true,
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enableTextAlign: true,
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// Advanced Features
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enableScreenReader: true,
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enableVoiceControl: true,
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enableReducedMotion: true,
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enableFontSelection: true,
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enableColorFilter: true,
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// Widget Styling
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widgetWidth: '440px',
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widgetPosition: {
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side: 'right', // 'left' or 'right'
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right: '20px',
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left: '20px',
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bottom: '20px'
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},
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// Colors
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colors: {
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primary: '#000000',
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primaryHover: '#00bfff',
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secondary: '#f9f9f9',
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text: '#333',
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textLight: '#fff',
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border: '#e6e6e6',
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borderHover: '#d4d4d4',
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shadow: 'rgba(0, 0, 0, 0.2)',
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focus: '#ff6b35',
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focusGlow: 'rgba(255, 107, 53, 0.3)'
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},
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// Button styling
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button: {
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size: '55px',
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borderRadius: '100px',
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iconSize: '40px',
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shadow: '0 4px 8px rgba(0, 0, 0, 0.2)'
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},
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// Menu styling
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menu: {
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headerHeight: '55px',
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padding: '0 10px 10px 10px',
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optionPadding: '20px 10px',
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optionMargin: '10px',
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borderRadius: '8px',
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fontSize: '16px',
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titleFontSize: '22px',
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closeButtonSize: '44px'
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},
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// Typography
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typography: {
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fontFamily: 'Arial, sans-serif',
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fontSize: '16px',
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titleFontSize: '22px',
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titleFontWeight: '500',
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lineHeight: '1'
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},
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// Animation
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animation: {
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transition: '0.2s',
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hoverScale: '1.05'
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},
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// Language/Text Configuration
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lang: {
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accessibilityMenu: 'Accessibility Menu',
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closeAccessibilityMenu: 'Close Accessibility Menu',
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accessibilityTools: 'Accessibility Tools',
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resetAllSettings: 'Reset All Settings',
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screenReader: 'Screen Reader',
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voiceCommand: 'Voice Command',
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textSpacing: 'Text Spacing',
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pauseAnimations: 'Pause Animations',
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hideImages: 'Hide Images',
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dyslexiaFriendly: 'Dyslexia Friendly',
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biggerCursor: 'Bigger Cursor',
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lineHeight: 'Line Height',
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reducedMotion: 'Reduced Motion',
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fontSelection: 'Font Selection',
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colorFilter: 'Color Filter',
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textAlign: 'Text Align',
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textSize: 'Text Size',
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highContrast: 'High Contrast',
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defaultFont: 'Default Font',
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noFilter: 'No Filter',
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default: 'Default',
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screenReaderOn: 'Screen reader on',
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screenReaderOff: 'Screen reader off',
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voiceControlActivated: 'Voice control activated',
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notSupportedBrowser: 'is not supported in this browser',
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close: 'Close'
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},
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// Voice Command Configuration - Developers can customize commands for different languages
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voiceCommands: {
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showMenu: ['show menu', 'open menu', 'accessibility menu'],
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highContrast: ['high contrast'],
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biggerText: ['bigger text', 'large text'],
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textSpacing: ['text spacing'],
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pauseAnimations: ['pause animations', 'stop animations'],
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hideImages: ['hide images'],
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dyslexiaFont: ['dyslexia friendly', 'dyslexia font'],
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biggerCursor: ['bigger cursor', 'large cursor'],
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lineHeight: ['line height'],
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textAlign: ['align text', 'text align'],
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screenReader: ['screen reader'],
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voiceControl: ['voice command', 'voice control'],
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resetAll: ['reset all', 'reset everything']
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},
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// Grid Layout Configuration
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gridLayout: {
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columns: '1fr 1fr', // Default 2-column layout (can be changed to '1fr 1fr 1fr' for 3 columns, etc.)
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gap: '10px' // Gap between grid items
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}
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};
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// Function to deep merge user configuration with defaults
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function mergeConfigs(defaultConfig, userConfig) {
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const result = { ...defaultConfig };
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if (!userConfig) return result;
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for (const key in userConfig) {
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if (userConfig.hasOwnProperty(key)) {
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if (typeof userConfig[key] === 'object' && userConfig[key] !== null && !Array.isArray(userConfig[key])) {
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result[key] = mergeConfigs(defaultConfig[key] || {}, userConfig[key]);
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} else {
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result[key] = userConfig[key];
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}
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}
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}
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return result;
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}
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// Merge user configuration with defaults
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// Users can define window.ACCESSIBILITY_WIDGET_CONFIG before loading this script
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const WIDGET_CONFIG = mergeConfigs(DEFAULT_WIDGET_CONFIG, window.ACCESSIBILITY_WIDGET_CONFIG || {});
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// ===========================================
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// STYLES & VISUAL ASSETS
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// ===========================================
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// Widget styles (will go inside Shadow DOM - NOT affected by page styles or accessibility features)
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const widgetStyles = `
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:host {
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all: initial;
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font-family: ${WIDGET_CONFIG.typography.fontFamily};
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}
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* {
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box-sizing: border-box;
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}
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#snn-accessibility-fixed-button {
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position: fixed !important;
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${WIDGET_CONFIG.widgetPosition.side}: ${WIDGET_CONFIG.widgetPosition[WIDGET_CONFIG.widgetPosition.side]} !important;
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bottom: ${WIDGET_CONFIG.widgetPosition.bottom} !important;
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z-index: 9999;
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}
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#snn-accessibility-button {
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background: ${WIDGET_CONFIG.colors.primary};
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border: none;
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border-radius: ${WIDGET_CONFIG.button.borderRadius};
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cursor: pointer;
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width: ${WIDGET_CONFIG.button.size};
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height: ${WIDGET_CONFIG.button.size};
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box-shadow: ${WIDGET_CONFIG.button.shadow};
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transition: ${WIDGET_CONFIG.animation.transition} !important;
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display: flex;
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justify-content: center;
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align-items: center;
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}
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#snn-accessibility-button:hover {
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transform: scale(${WIDGET_CONFIG.animation.hoverScale});
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}
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#snn-accessibility-button:focus {
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outline: 2px solid ${WIDGET_CONFIG.colors.textLight};
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outline-offset: 2px;
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}
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#snn-accessibility-button svg {
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width: ${WIDGET_CONFIG.button.iconSize};
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height: ${WIDGET_CONFIG.button.iconSize};
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fill: ${WIDGET_CONFIG.colors.textLight};
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pointer-events: none;
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}
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#snn-accessibility-menu {
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position: fixed;
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top: 0;
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${WIDGET_CONFIG.widgetPosition.side}: 0;
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width: ${WIDGET_CONFIG.widgetWidth};
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height: 100vh;
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overflow-y: auto;
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background-color: #e2e2e2;
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padding: 0;
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display: none;
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font-family: ${WIDGET_CONFIG.typography.fontFamily};
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z-index: 999999;
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scrollbar-width: thin;
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}
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.snn-accessibility-option {
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font-size: ${WIDGET_CONFIG.menu.fontSize};
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display: flex;
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align-items: center;
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padding: ${WIDGET_CONFIG.menu.optionPadding};
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width: 100%;
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background-color: #ffffff;
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color: ${WIDGET_CONFIG.colors.primary};
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border: 2px solid #ffffff;
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cursor: pointer;
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border-radius: ${WIDGET_CONFIG.menu.borderRadius};
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transition: background-color ${WIDGET_CONFIG.animation.transition}, border-color ${WIDGET_CONFIG.animation.transition};
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line-height: ${WIDGET_CONFIG.typography.lineHeight} !important;
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}
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.snn-accessibility-option:hover {
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border-color: ${WIDGET_CONFIG.colors.primary};
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}
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.snn-accessibility-option.active {
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border-color: ${WIDGET_CONFIG.colors.primary};
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}
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.snn-accessibility-option:disabled {
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opacity: 0.5;
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cursor: not-allowed;
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}
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.snn-icon {
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margin-right: 12px;
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width: ${WIDGET_CONFIG.button.iconSize};
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height: ${WIDGET_CONFIG.button.iconSize};
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fill: ${WIDGET_CONFIG.colors.primary};
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flex-shrink: 0;
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}
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.snn-icon svg {
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width: 100%;
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height: 100%;
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fill: currentColor;
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}
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.snn-button-text {
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flex: 1;
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}
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.snn-close {
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background: none;
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border: none;
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font-size: ${WIDGET_CONFIG.menu.closeButtonSize};
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color: ${WIDGET_CONFIG.colors.textLight};
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cursor: pointer;
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margin-left: auto;
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line-height: ${WIDGET_CONFIG.typography.lineHeight};
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border-radius: ${WIDGET_CONFIG.button.borderRadius};
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width: ${WIDGET_CONFIG.menu.closeButtonSize};
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height: ${WIDGET_CONFIG.menu.closeButtonSize};
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position: relative;
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}
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.snn-close::before {
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content: '×';
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position: absolute;
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top: 50%;
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left: 50%;
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transform: translate(-50%, -50%);
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font-size: ${WIDGET_CONFIG.menu.closeButtonSize};
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line-height: 1;
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}
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.snn-close:focus {
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outline: solid 2px ${WIDGET_CONFIG.colors.textLight};
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}
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.snn-close:hover {
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color: ${WIDGET_CONFIG.colors.text};
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background: ${WIDGET_CONFIG.colors.secondary};
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}
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.snn-header {
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display: flex;
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align-items: center;
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margin-bottom: 20px;
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padding: 10px;
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background: ${WIDGET_CONFIG.colors.primary};
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height: ${WIDGET_CONFIG.menu.headerHeight};
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position: sticky;
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top: 0;
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z-index: 10;
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box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
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}
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.snn-content {
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padding: 0 10px 10px 10px;
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}
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.snn-reset-button {
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font-size: ${WIDGET_CONFIG.menu.fontSize};
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display: flex;
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align-items: center;
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justify-content: center;
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margin-bottom: 10px;
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padding: ${WIDGET_CONFIG.menu.optionPadding};
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width: 100%;
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background-color: #343434;
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color: ${WIDGET_CONFIG.colors.textLight};
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border: none;
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cursor: pointer;
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border-radius: ${WIDGET_CONFIG.menu.borderRadius};
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transition: background-color ${WIDGET_CONFIG.animation.transition};
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line-height: ${WIDGET_CONFIG.typography.lineHeight} !important;
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font-weight: 500;
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gap: 8px;
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}
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.snn-reset-button:hover {
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background-color: #cc3333;
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}
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.snn-options-grid {
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display: grid;
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grid-template-columns: ${WIDGET_CONFIG.gridLayout.columns};
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gap: ${WIDGET_CONFIG.gridLayout.gap};
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margin-bottom: 20px;
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}
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.snn-title {
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margin: 0;
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font-size: ${WIDGET_CONFIG.menu.titleFontSize};
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color: ${WIDGET_CONFIG.colors.textLight};
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line-height: ${WIDGET_CONFIG.typography.lineHeight} !important;
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margin-left: 5px;
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font-weight: ${WIDGET_CONFIG.typography.titleFontWeight};
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}
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`;
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// Page accessibility styles (will go in main document - these affect the page, NOT the widget)
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const pageStyles = `
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/* High Contrast Modes */
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.snn-high-contrast-medium {
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filter: contrast(1.3) !important;
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}
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.snn-high-contrast-medium * {
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filter: contrast(1.3) !important;
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}
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.snn-high-contrast-high {
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background-color: #000 !important;
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color: #fff !important;
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filter: contrast(1.5) !important;
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}
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.snn-high-contrast-high * {
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background-color: #000 !important;
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color: #fff !important;
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filter: contrast(1.5) !important;
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}
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.snn-high-contrast-ultra {
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background-color: #000 !important;
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color: #ffff00 !important;
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filter: contrast(2.0) !important;
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}
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.snn-high-contrast-ultra * {
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background-color: #000 !important;
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color: #ffff00 !important;
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filter: contrast(2.0) !important;
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}
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/* Text Size */
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.snn-bigger-text-medium * {
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font-size: 20px !important;
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}
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.snn-bigger-text-large * {
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font-size: 24px !important;
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}
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.snn-bigger-text-xlarge * {
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font-size: 28px !important;
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}
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/* Text Spacing */
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.snn-text-spacing * {
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letter-spacing: 0.2em !important;
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word-spacing: 0.3em !important;
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}
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/* Pause Animations */
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.snn-pause-animations * {
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animation: none !important;
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transition: none !important;
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}
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/* Dyslexia Font */
|
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.snn-dyslexia-font {
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font-family: 'Comic Sans MS', 'Chalkboard SE', 'Bradley Hand', 'Brush Script MT', fantasy !important;
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}
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.snn-dyslexia-font * {
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font-family: 'Comic Sans MS', 'Chalkboard SE', 'Bradley Hand', 'Brush Script MT', fantasy !important;
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}
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/* Line Height */
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.snn-line-height * {
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line-height: 2.5 !important;
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}
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/* Text Alignment */
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.snn-text-align-left * {
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text-align: left !important;
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}
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.snn-text-align-center * {
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text-align: center !important;
|
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}
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.snn-text-align-right * {
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text-align: right !important;
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}
|
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|
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/* Bigger Cursor */
|
||
.snn-bigger-cursor {
|
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cursor: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNDgiIGhlaWdodD0iNzIiIHZpZXdCb3g9IjAgMCA0OCA3MiIgZmlsbD0ibm9uZSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48cGF0aCBkPSJNNCAyVjcwTDIwIDU0SDM2TDQgMloiIGZpbGw9IiMwMDAiIHN0cm9rZT0iI2ZmZiIgc3Ryb2tlLXdpZHRoPSI0Ii8+PC9zdmc+'), auto !important;
|
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}
|
||
.snn-bigger-cursor * {
|
||
cursor: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNDgiIGhlaWdodD0iNzIiIHZpZXdCb3g9IjAgMCA0OCA3MiIgZmlsbD0ibm9uZSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48cGF0aCBkPSJNNCAyVjcwTDIwIDU0SDM2TDQgMloiIGZpbGw9IiMwMDAiIHN0cm9rZT0iI2ZmZiIgc3Ryb2tlLXdpZHRoPSI0Ii8+PC9zdmc+'), auto !important;
|
||
}
|
||
|
||
/* Font Selection */
|
||
.snn-font-arial {
|
||
font-family: Arial, sans-serif !important;
|
||
}
|
||
.snn-font-arial * {
|
||
font-family: Arial, sans-serif !important;
|
||
}
|
||
.snn-font-times {
|
||
font-family: 'Times New Roman', serif !important;
|
||
}
|
||
.snn-font-times * {
|
||
font-family: 'Times New Roman', serif !important;
|
||
}
|
||
.snn-font-verdana {
|
||
font-family: Verdana, sans-serif !important;
|
||
}
|
||
.snn-font-verdana * {
|
||
font-family: Verdana, sans-serif !important;
|
||
}
|
||
|
||
/* Color Filters */
|
||
.snn-filter-protanopia {
|
||
filter: url('#protanopia-filter') !important;
|
||
}
|
||
.snn-filter-deuteranopia {
|
||
filter: url('#deuteranopia-filter') !important;
|
||
}
|
||
.snn-filter-tritanopia {
|
||
filter: url('#tritanopia-filter') !important;
|
||
}
|
||
.snn-filter-grayscale {
|
||
filter: grayscale(100%) !important;
|
||
}
|
||
|
||
/* Reduced Motion */
|
||
.snn-reduced-motion * {
|
||
animation: none !important;
|
||
transition: none !important;
|
||
}
|
||
.snn-reduced-motion *::before,
|
||
.snn-reduced-motion *::after {
|
||
animation: none !important;
|
||
transition: none !important;
|
||
}
|
||
`;
|
||
|
||
// ===========================================
|
||
// SVG ICONS
|
||
// ===========================================
|
||
|
||
const icons = {
|
||
buttonsvg: `<svg xmlns="http://www.w3.org/2000/svg" style="fill:white;" viewBox="0 0 24 24" width="30px" height="30px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M20.5 6c-2.61.7-5.67 1-8.5 1s-5.89-.3-8.5-1L3 8c1.86.5 4 .83 6 1v13h2v-6h2v6h2V9c2-.17 4.14-.5 6-1l-.5-2zM12 6c1.1 0 2-.9 2-2s-.9-2-2-2-2 .9-2 2 .9 2 2 2z"></path></svg>`,
|
||
highContrast: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><circle cx="32" cy="32" r="30" fill="#000"/><path d="M32 2a30 30 0 000 60V2z" fill="#fff"/></svg>`,
|
||
biggerText: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M32 8L8 56h12l6-12h24l6 12h12L32 8zm-6 36L32 20l6 24H26z"/></svg>`,
|
||
textSpacing: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M10 16h44v4H10zm0 12h44v4H10zm0 12h44v4H10zm0 12h44v4H10z"/></svg>`,
|
||
pauseAnimations: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><rect x="16" y="12" width="10" height="40"/><rect x="38" y="12" width="10" height="40"/></svg>`,
|
||
hideImages: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M32 12C16 12 4 32 4 32s12 20 28 20 28-20 28-20S48 12 32 12zm0 32a12 12 0 1112-12 12 12 0 01-12 12z"/><circle cx="32" cy="32" r="8"/></svg>`,
|
||
dyslexiaFont: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M12 8v48h12a16 16 0 000-32h-8v-8h16V8H12zm12 24a8 8 0 010 16h-4V32h4zM40 8v48h12V8H40z"/></svg>`,
|
||
biggerCursor: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M12 4v56l16-16h24L12 4z"/></svg>`,
|
||
lineHeight: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M16 16h32v4H16zm0 12h32v4H16zm0 12h32v4H16zm0 12h32v4H16zM8 8l8 8-8 8V8zm0 32l8 8-8 8V40z"/></svg>`,
|
||
textAlign: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M10 16h44v4H10zm0 12h44v4H10zm0 12h44v4H10zm0 12h44v4H10z"/></svg>`,
|
||
screenReader: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M16 24 L24 24 L32 16 L32 48 L24 40 L16 40 Z" fill="#333" stroke="#555" stroke-width="2"/><path d="M36 20 C42 24, 42 40, 36 44" fill="none" stroke="#fff" stroke-width="2" stroke-linecap="round"/><path d="M36 12 C48 24, 48 40, 36 52" fill="none" stroke="#555" stroke-width="2" stroke-linecap="round"/><rect x="28" y="48" width="8" height="8" fill="#ccc"/></svg>`,
|
||
resetAll: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor"><path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.41 0-8-3.59-8-8s3.59-8 8-8 8 3.59 8 8-3.59 8-8 8z"/><path d="M8 12l4-4 4 4-1.41 1.41L12 10.83l-2.59 2.58z" transform="rotate(45 12 12)"/></svg>`,
|
||
voiceControl: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M32 44a12 12 0 0012-12V20a12 12 0 10-24 0v12a12 12 0 0012 12z" fill="#333"/><path d="M20 32h24v4H20z" fill="#555"/><path d="M32 48v8" stroke="#555" stroke-width="4" stroke-linecap="round"/></svg>`,
|
||
fontSelection: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><text x="32" y="40" font-family="serif" font-size="24" text-anchor="middle" fill="#333">Aa</text><path d="M8 48h48v2H8z"/></svg>`,
|
||
colorFilter: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><circle cx="32" cy="32" r="24" fill="none" stroke="#333" stroke-width="2"/><path d="M32 8a24 24 0 000 48V8z" fill="#f00" opacity="0.3"/><path d="M32 8a24 24 0 000 48" fill="none" stroke="#333" stroke-width="2" stroke-dasharray="4,2"/></svg>`,
|
||
reducedMotion: `<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><rect x="16" y="24" width="8" height="16" fill="#333"/><rect x="28" y="24" width="8" height="16" fill="#333"/><rect x="40" y="24" width="8" height="16" fill="#333"/></svg>`,
|
||
};
|
||
|
||
// ===========================================
|
||
// SHADOW DOM SETUP
|
||
// ===========================================
|
||
|
||
let shadowRoot = null;
|
||
|
||
// Inject styles into the page (NOT the widget)
|
||
function injectPageStyles() {
|
||
const styleSheet = document.createElement('style');
|
||
styleSheet.innerText = pageStyles;
|
||
styleSheet.id = 'snn-accessibility-page-styles';
|
||
document.head.appendChild(styleSheet);
|
||
|
||
// Add SVG color blindness filters to main document
|
||
const svgFilters = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
|
||
svgFilters.style.position = 'absolute';
|
||
svgFilters.style.width = '0';
|
||
svgFilters.style.height = '0';
|
||
svgFilters.innerHTML = `
|
||
<defs>
|
||
<filter id="protanopia-filter">
|
||
<feColorMatrix type="matrix" values="0.567,0.433,0,0,0 0.558,0.442,0,0,0 0,0.242,0.758,0,0 0,0,0,1,0"/>
|
||
</filter>
|
||
<filter id="deuteranopia-filter">
|
||
<feColorMatrix type="matrix" values="0.625,0.375,0,0,0 0.7,0.3,0,0,0 0,0.3,0.7,0,0 0,0,0,1,0"/>
|
||
</filter>
|
||
<filter id="tritanopia-filter">
|
||
<feColorMatrix type="matrix" values="0.95,0.05,0,0,0 0,0.433,0.567,0,0 0,0.475,0.525,0,0 0,0,0,1,0"/>
|
||
</filter>
|
||
</defs>
|
||
`;
|
||
document.body.appendChild(svgFilters);
|
||
}
|
||
|
||
// Create shadow DOM container
|
||
function createShadowContainer() {
|
||
const container = document.createElement('div');
|
||
container.id = 'snn-accessibility-widget-container';
|
||
document.body.appendChild(container);
|
||
|
||
// Create shadow root
|
||
shadowRoot = container.attachShadow({ mode: 'open' });
|
||
|
||
// Add widget styles to shadow DOM
|
||
const styleElement = document.createElement('style');
|
||
styleElement.textContent = widgetStyles;
|
||
shadowRoot.appendChild(styleElement);
|
||
|
||
return shadowRoot;
|
||
}
|
||
|
||
// ===========================================
|
||
// CORE UTILITY FUNCTIONS
|
||
// ===========================================
|
||
|
||
// Cache for DOM elements to improve performance
|
||
const domCache = {
|
||
body: document.body,
|
||
documentElement: document.documentElement,
|
||
images: null,
|
||
lastImageUpdate: 0,
|
||
getImages: function () {
|
||
const now = Date.now();
|
||
if (!this.images || now - this.lastImageUpdate > 5000) {
|
||
this.images = document.querySelectorAll('img');
|
||
this.lastImageUpdate = now;
|
||
}
|
||
return this.images;
|
||
}
|
||
};
|
||
|
||
// Apply saved settings from localStorage (optimized)
|
||
function applySettings() {
|
||
const settings = [
|
||
{ key: 'biggerCursor', className: 'snn-bigger-cursor' },
|
||
{ key: 'biggerText', className: 'snn-bigger-text' },
|
||
{ key: 'highContrast', className: 'snn-high-contrast' },
|
||
{ key: 'dyslexiaFont', className: 'snn-dyslexia-font' },
|
||
{ key: 'lineHeight', className: 'snn-line-height' },
|
||
{ key: 'textAlign', className: 'snn-text-align' },
|
||
{ key: 'pauseAnimations', className: 'snn-pause-animations' },
|
||
{ key: 'textSpacing', className: 'snn-text-spacing' },
|
||
{ key: 'reducedMotion', className: 'snn-reduced-motion' },
|
||
];
|
||
|
||
// Batch DOM operations for better performance
|
||
const bodyClassesToAdd = [];
|
||
const bodyClassesToRemove = [];
|
||
const docClassesToAdd = [];
|
||
const docClassesToRemove = [];
|
||
|
||
settings.forEach(({ key, className, target = domCache.body }) => {
|
||
const isActive = localStorage.getItem(key) === 'true';
|
||
if (className) {
|
||
if (target === domCache.documentElement) {
|
||
if (isActive) {
|
||
docClassesToAdd.push(className);
|
||
} else {
|
||
docClassesToRemove.push(className);
|
||
}
|
||
} else {
|
||
if (isActive) {
|
||
bodyClassesToAdd.push(className);
|
||
} else {
|
||
bodyClassesToRemove.push(className);
|
||
}
|
||
}
|
||
}
|
||
});
|
||
|
||
// Apply all class changes at once
|
||
if (bodyClassesToAdd.length > 0) {
|
||
domCache.body.classList.add(...bodyClassesToAdd);
|
||
}
|
||
if (bodyClassesToRemove.length > 0) {
|
||
domCache.body.classList.remove(...bodyClassesToRemove);
|
||
}
|
||
if (docClassesToAdd.length > 0) {
|
||
domCache.documentElement.classList.add(...docClassesToAdd);
|
||
}
|
||
if (docClassesToRemove.length > 0) {
|
||
domCache.documentElement.classList.remove(...docClassesToRemove);
|
||
}
|
||
|
||
// Handle font selection
|
||
const fontClasses = ['snn-font-arial', 'snn-font-times', 'snn-font-verdana'];
|
||
domCache.body.classList.remove(...fontClasses);
|
||
const selectedFont = localStorage.getItem('fontSelection');
|
||
if (selectedFont) {
|
||
domCache.body.classList.add(`snn-font-${selectedFont}`);
|
||
}
|
||
|
||
// Handle color filters
|
||
const filterClasses = ['snn-filter-protanopia', 'snn-filter-deuteranopia', 'snn-filter-tritanopia', 'snn-filter-grayscale'];
|
||
domCache.documentElement.classList.remove(...filterClasses);
|
||
const selectedFilter = localStorage.getItem('colorFilter');
|
||
if (selectedFilter) {
|
||
domCache.documentElement.classList.add(`snn-filter-${selectedFilter}`);
|
||
}
|
||
|
||
// Handle text alignment
|
||
const alignClasses = ['snn-text-align-left', 'snn-text-align-center', 'snn-text-align-right'];
|
||
domCache.body.classList.remove(...alignClasses);
|
||
const selectedAlign = localStorage.getItem('textAlign');
|
||
if (selectedAlign) {
|
||
domCache.body.classList.add(`snn-text-align-${selectedAlign}`);
|
||
}
|
||
|
||
// Handle bigger text
|
||
const textClasses = ['snn-bigger-text-medium', 'snn-bigger-text-large', 'snn-bigger-text-xlarge'];
|
||
domCache.body.classList.remove(...textClasses);
|
||
const selectedTextSize = localStorage.getItem('biggerText');
|
||
if (selectedTextSize) {
|
||
domCache.body.classList.add(`snn-bigger-text-${selectedTextSize}`);
|
||
}
|
||
|
||
// Handle high contrast
|
||
const contrastClasses = ['snn-high-contrast-medium', 'snn-high-contrast-high', 'snn-high-contrast-ultra'];
|
||
domCache.body.classList.remove(...contrastClasses);
|
||
const selectedContrast = localStorage.getItem('highContrast');
|
||
if (selectedContrast) {
|
||
domCache.body.classList.add(`snn-high-contrast-${selectedContrast}`);
|
||
}
|
||
|
||
// Handle images with cached query
|
||
const hideImages = localStorage.getItem('hideImages') === 'true';
|
||
const displayStyle = hideImages ? 'none' : '';
|
||
domCache.getImages().forEach((img) => {
|
||
img.style.display = displayStyle;
|
||
});
|
||
|
||
if (screenReader.active && screenReader.isSupported) {
|
||
document.addEventListener('focusin', screenReader.handleFocus);
|
||
}
|
||
|
||
if (voiceControl.isActive && voiceControl.isSupported) {
|
||
voiceControl.startListening();
|
||
}
|
||
}
|
||
|
||
// ===========================================
|
||
// UI COMPONENTS
|
||
// ===========================================
|
||
|
||
// Create the accessibility button
|
||
function createAccessibilityButton() {
|
||
const buttonContainer = document.createElement('div');
|
||
buttonContainer.id = 'snn-accessibility-fixed-button';
|
||
|
||
const button = document.createElement('button');
|
||
button.id = 'snn-accessibility-button';
|
||
button.innerHTML = icons.buttonsvg;
|
||
button.setAttribute('aria-label', WIDGET_CONFIG.lang.accessibilityMenu);
|
||
|
||
button.addEventListener('click', function () {
|
||
toggleMenu();
|
||
});
|
||
|
||
button.addEventListener('keydown', function (e) {
|
||
if (e.key === 'Enter' || e.key === ' ') {
|
||
e.preventDefault();
|
||
toggleMenu();
|
||
}
|
||
});
|
||
|
||
buttonContainer.appendChild(button);
|
||
shadowRoot.appendChild(buttonContainer);
|
||
}
|
||
|
||
// Reset all accessibility settings
|
||
function resetAccessibilitySettings() {
|
||
const keys = [
|
||
'biggerCursor',
|
||
'biggerText',
|
||
'dyslexiaFont',
|
||
'hideImages',
|
||
'lineHeight',
|
||
'pauseAnimations',
|
||
'screenReader',
|
||
'textAlign',
|
||
'textSpacing',
|
||
'highContrast',
|
||
'voiceControl',
|
||
'reducedMotion',
|
||
'fontSelection',
|
||
'colorFilter',
|
||
];
|
||
keys.forEach((key) => localStorage.removeItem(key));
|
||
|
||
// Remove all CSS classes
|
||
const cssClasses = [
|
||
'snn-bigger-cursor',
|
||
'snn-bigger-text',
|
||
'snn-dyslexia-font',
|
||
'snn-pause-animations',
|
||
'snn-text-spacing',
|
||
'snn-line-height',
|
||
'snn-text-align',
|
||
'snn-reduced-motion',
|
||
'snn-font-arial',
|
||
'snn-font-times',
|
||
'snn-font-verdana'
|
||
];
|
||
cssClasses.forEach(cls => document.body.classList.remove(cls));
|
||
|
||
const bodyClasses2 = [
|
||
'snn-high-contrast-medium',
|
||
'snn-high-contrast-high',
|
||
'snn-high-contrast-ultra'
|
||
];
|
||
bodyClasses2.forEach(cls => document.body.classList.remove(cls));
|
||
|
||
const documentClasses = [
|
||
'snn-filter-protanopia',
|
||
'snn-filter-deuteranopia',
|
||
'snn-filter-tritanopia',
|
||
'snn-filter-grayscale'
|
||
];
|
||
documentClasses.forEach(cls => document.documentElement.classList.remove(cls));
|
||
|
||
const textSizeClasses = [
|
||
'snn-bigger-text-medium',
|
||
'snn-bigger-text-large',
|
||
'snn-bigger-text-xlarge'
|
||
];
|
||
textSizeClasses.forEach(cls => document.body.classList.remove(cls));
|
||
|
||
domCache.getImages().forEach((img) => (img.style.display = ''));
|
||
|
||
if (screenReader.active) {
|
||
screenReader.toggle(false);
|
||
}
|
||
|
||
if (voiceControl.isActive) {
|
||
voiceControl.toggle(false);
|
||
}
|
||
|
||
applySettings();
|
||
|
||
const buttons = shadowRoot.querySelectorAll('#snn-accessibility-menu .snn-accessibility-option');
|
||
buttons.forEach((button) => {
|
||
button.classList.remove('active');
|
||
button.setAttribute('aria-pressed', 'false');
|
||
});
|
||
}
|
||
|
||
// Create toggle buttons for accessibility options
|
||
function createToggleButton(
|
||
buttonText,
|
||
localStorageKey,
|
||
className,
|
||
targetElement = document.body,
|
||
customToggleFunction = null,
|
||
iconSVG = '',
|
||
requiresFeature = null
|
||
) {
|
||
const button = document.createElement('button');
|
||
button.innerHTML = `<span class="snn-icon">${iconSVG}</span><span class="snn-button-text">${buttonText}</span>`;
|
||
button.setAttribute('data-key', localStorageKey);
|
||
button.setAttribute('aria-label', buttonText);
|
||
button.classList.add('snn-accessibility-option');
|
||
|
||
// Check if feature is supported
|
||
if (requiresFeature && !requiresFeature.isSupported) {
|
||
button.disabled = true;
|
||
button.setAttribute('title', `${buttonText} ${WIDGET_CONFIG.lang.notSupportedBrowser}`);
|
||
button.style.opacity = '0.5';
|
||
return button;
|
||
}
|
||
|
||
const isActive = localStorage.getItem(localStorageKey) === 'true';
|
||
button.setAttribute('aria-pressed', isActive);
|
||
button.setAttribute('role', 'switch');
|
||
if (isActive) {
|
||
button.classList.add('active');
|
||
}
|
||
|
||
button.addEventListener('click', function () {
|
||
handleToggle();
|
||
});
|
||
|
||
button.addEventListener('keydown', function (e) {
|
||
if (e.key === 'Enter' || e.key === ' ') {
|
||
e.preventDefault();
|
||
handleToggle();
|
||
}
|
||
});
|
||
|
||
function handleToggle() {
|
||
const newIsActive = localStorage.getItem(localStorageKey) !== 'true';
|
||
|
||
// If there's a custom toggle function, call it and check if it succeeded
|
||
if (customToggleFunction) {
|
||
const success = customToggleFunction(newIsActive);
|
||
if (success === false) {
|
||
// Feature not supported or failed
|
||
return;
|
||
}
|
||
}
|
||
|
||
localStorage.setItem(localStorageKey, newIsActive);
|
||
button.setAttribute('aria-pressed', newIsActive);
|
||
|
||
if (newIsActive) {
|
||
button.classList.add('active');
|
||
if (className) {
|
||
targetElement.classList.add(className);
|
||
}
|
||
} else {
|
||
button.classList.remove('active');
|
||
if (className) {
|
||
targetElement.classList.remove(className);
|
||
}
|
||
}
|
||
}
|
||
|
||
return button;
|
||
}
|
||
|
||
// Create special action buttons (for cycling through options)
|
||
function createActionButton(buttonText, actionFunction, iconSVG) {
|
||
const button = document.createElement('button');
|
||
button.innerHTML = `<span class="snn-icon">${iconSVG}</span><span class="snn-button-text">${buttonText}: <span class="snn-status">${WIDGET_CONFIG.lang.default}</span></span>`;
|
||
button.setAttribute('aria-label', buttonText);
|
||
button.classList.add('snn-accessibility-option');
|
||
|
||
// Update initial status
|
||
updateActionButtonStatus(button, buttonText, actionFunction);
|
||
|
||
button.addEventListener('click', function () {
|
||
const result = actionFunction();
|
||
if (result) {
|
||
const statusSpan = button.querySelector('.snn-status');
|
||
statusSpan.textContent = result;
|
||
}
|
||
});
|
||
|
||
button.addEventListener('keydown', function (e) {
|
||
if (e.key === 'Enter' || e.key === ' ') {
|
||
e.preventDefault();
|
||
const result = actionFunction();
|
||
if (result) {
|
||
const statusSpan = button.querySelector('.snn-status');
|
||
statusSpan.textContent = result;
|
||
}
|
||
}
|
||
});
|
||
|
||
return button;
|
||
}
|
||
|
||
// Update action button status on page load
|
||
function updateActionButtonStatus(button, buttonText, actionFunction) {
|
||
const statusSpan = button.querySelector('.snn-status');
|
||
|
||
if (buttonText.includes('Font')) {
|
||
const currentFont = localStorage.getItem('fontSelection');
|
||
statusSpan.textContent = currentFont ? currentFont.charAt(0).toUpperCase() + currentFont.slice(1) : WIDGET_CONFIG.lang.default;
|
||
} else if (buttonText.includes('Color')) {
|
||
const currentFilter = localStorage.getItem('colorFilter');
|
||
statusSpan.textContent = currentFilter ? currentFilter.charAt(0).toUpperCase() + currentFilter.slice(1) : WIDGET_CONFIG.lang.noFilter;
|
||
} else if (buttonText.includes('Text Align')) {
|
||
const currentAlign = localStorage.getItem('textAlign');
|
||
statusSpan.textContent = currentAlign ? currentAlign.charAt(0).toUpperCase() + currentAlign.slice(1) : WIDGET_CONFIG.lang.default;
|
||
} else if (buttonText.includes('Text Size')) {
|
||
const currentSize = localStorage.getItem('biggerText');
|
||
statusSpan.textContent = currentSize ? (currentSize === 'xlarge' ? 'X-Large' : currentSize.charAt(0).toUpperCase() + currentSize.slice(1)) : WIDGET_CONFIG.lang.default;
|
||
} else if (buttonText.includes('High Contrast')) {
|
||
const currentContrast = localStorage.getItem('highContrast');
|
||
statusSpan.textContent = currentContrast ? currentContrast.charAt(0).toUpperCase() + currentContrast.slice(1) : WIDGET_CONFIG.lang.default;
|
||
}
|
||
}
|
||
|
||
// ===========================================
|
||
// FEATURE TOGGLE FUNCTIONS
|
||
// ===========================================
|
||
|
||
// Function to hide or show images (optimized)
|
||
function toggleHideImages(isActive) {
|
||
const displayStyle = isActive ? 'none' : '';
|
||
domCache.getImages().forEach((img) => {
|
||
img.style.display = displayStyle;
|
||
});
|
||
}
|
||
|
||
// Font selection handler (optimized)
|
||
function handleFontSelection() {
|
||
const fonts = ['arial', 'times', 'verdana'];
|
||
const currentFont = localStorage.getItem('fontSelection') || 'default';
|
||
const currentIndex = fonts.indexOf(currentFont);
|
||
const nextIndex = (currentIndex + 1) % (fonts.length + 1); // +1 for default
|
||
|
||
// Remove all font classes in one operation
|
||
const fontClasses = ['snn-font-arial', 'snn-font-times', 'snn-font-verdana'];
|
||
domCache.body.classList.remove(...fontClasses);
|
||
|
||
if (nextIndex === fonts.length) {
|
||
// Default font
|
||
localStorage.removeItem('fontSelection');
|
||
return WIDGET_CONFIG.lang.defaultFont;
|
||
} else {
|
||
const selectedFont = fonts[nextIndex];
|
||
localStorage.setItem('fontSelection', selectedFont);
|
||
domCache.body.classList.add(`snn-font-${selectedFont}`);
|
||
return selectedFont.charAt(0).toUpperCase() + selectedFont.slice(1);
|
||
}
|
||
}
|
||
|
||
// Color filter handler (optimized)
|
||
function handleColorFilter() {
|
||
const filters = ['protanopia', 'deuteranopia', 'tritanopia', 'grayscale'];
|
||
const currentFilter = localStorage.getItem('colorFilter') || 'none';
|
||
const currentIndex = filters.indexOf(currentFilter);
|
||
const nextIndex = (currentIndex + 1) % (filters.length + 1); // +1 for none
|
||
|
||
// Remove all filter classes in one operation
|
||
const filterClasses = ['snn-filter-protanopia', 'snn-filter-deuteranopia', 'snn-filter-tritanopia', 'snn-filter-grayscale'];
|
||
domCache.documentElement.classList.remove(...filterClasses);
|
||
|
||
if (nextIndex === filters.length) {
|
||
// No filter
|
||
localStorage.removeItem('colorFilter');
|
||
return WIDGET_CONFIG.lang.noFilter;
|
||
} else {
|
||
const selectedFilter = filters[nextIndex];
|
||
localStorage.setItem('colorFilter', selectedFilter);
|
||
domCache.documentElement.classList.add(`snn-filter-${selectedFilter}`);
|
||
return selectedFilter.charAt(0).toUpperCase() + selectedFilter.slice(1);
|
||
}
|
||
}
|
||
|
||
// Text align handler with 3 states
|
||
function handleTextAlign() {
|
||
const alignments = ['left', 'center', 'right'];
|
||
const currentAlign = localStorage.getItem('textAlign') || 'none';
|
||
const currentIndex = alignments.indexOf(currentAlign);
|
||
const nextIndex = (currentIndex + 1) % (alignments.length + 1); // +1 for none
|
||
|
||
// Remove all alignment classes
|
||
const alignClasses = ['snn-text-align-left', 'snn-text-align-center', 'snn-text-align-right'];
|
||
domCache.body.classList.remove(...alignClasses);
|
||
|
||
if (nextIndex === alignments.length) {
|
||
// Default alignment
|
||
localStorage.removeItem('textAlign');
|
||
return WIDGET_CONFIG.lang.default;
|
||
} else {
|
||
const selectedAlign = alignments[nextIndex];
|
||
localStorage.setItem('textAlign', selectedAlign);
|
||
domCache.body.classList.add(`snn-text-align-${selectedAlign}`);
|
||
return selectedAlign.charAt(0).toUpperCase() + selectedAlign.slice(1);
|
||
}
|
||
}
|
||
|
||
// Bigger text handler with 3 states
|
||
function handleBiggerText() {
|
||
const textSizes = ['medium', 'large', 'xlarge'];
|
||
const currentSize = localStorage.getItem('biggerText') || 'none';
|
||
const currentIndex = textSizes.indexOf(currentSize);
|
||
const nextIndex = (currentIndex + 1) % (textSizes.length + 1); // +1 for none
|
||
|
||
// Remove all text size classes
|
||
const textClasses = ['snn-bigger-text-medium', 'snn-bigger-text-large', 'snn-bigger-text-xlarge'];
|
||
domCache.body.classList.remove(...textClasses);
|
||
|
||
if (nextIndex === textSizes.length) {
|
||
// Default text size
|
||
localStorage.removeItem('biggerText');
|
||
return WIDGET_CONFIG.lang.default;
|
||
} else {
|
||
const selectedSize = textSizes[nextIndex];
|
||
localStorage.setItem('biggerText', selectedSize);
|
||
domCache.body.classList.add(`snn-bigger-text-${selectedSize}`);
|
||
return selectedSize === 'xlarge' ? 'X-Large' : selectedSize.charAt(0).toUpperCase() + selectedSize.slice(1);
|
||
}
|
||
}
|
||
|
||
// High contrast handler with 3 states
|
||
function handleHighContrast() {
|
||
const contrastLevels = ['medium', 'high', 'ultra'];
|
||
const currentContrast = localStorage.getItem('highContrast') || 'none';
|
||
const currentIndex = contrastLevels.indexOf(currentContrast);
|
||
const nextIndex = (currentIndex + 1) % (contrastLevels.length + 1); // +1 for none
|
||
|
||
// Remove all contrast classes
|
||
const contrastClasses = ['snn-high-contrast-medium', 'snn-high-contrast-high', 'snn-high-contrast-ultra'];
|
||
domCache.body.classList.remove(...contrastClasses);
|
||
|
||
if (nextIndex === contrastLevels.length) {
|
||
// Default contrast
|
||
localStorage.removeItem('highContrast');
|
||
return WIDGET_CONFIG.lang.default;
|
||
} else {
|
||
const selectedContrast = contrastLevels[nextIndex];
|
||
localStorage.setItem('highContrast', selectedContrast);
|
||
domCache.body.classList.add(`snn-high-contrast-${selectedContrast}`);
|
||
return selectedContrast.charAt(0).toUpperCase() + selectedContrast.slice(1);
|
||
}
|
||
}
|
||
|
||
// ===========================================
|
||
// ACCESSIBILITY FEATURES
|
||
// ===========================================
|
||
|
||
// Screen reader functionality
|
||
const screenReader = {
|
||
active: localStorage.getItem('screenReader') === 'true',
|
||
isSupported: 'speechSynthesis' in window,
|
||
handleFocus: function (event) {
|
||
if (screenReader.active && screenReader.isSupported) {
|
||
try {
|
||
const content = event.target.innerText || event.target.alt || event.target.title || '';
|
||
if (content.trim() !== '') {
|
||
window.speechSynthesis.cancel();
|
||
const speech = new SpeechSynthesisUtterance(content);
|
||
speech.lang = 'en-US';
|
||
speech.onerror = function (event) {
|
||
console.warn('Speech synthesis error:', event.error);
|
||
};
|
||
window.speechSynthesis.speak(speech);
|
||
}
|
||
} catch (error) {
|
||
console.warn('Screen reader error:', error);
|
||
}
|
||
}
|
||
},
|
||
toggle: function (isActive) {
|
||
if (!screenReader.isSupported) {
|
||
console.warn(`Speech synthesis ${WIDGET_CONFIG.lang.notSupportedBrowser}`);
|
||
return false;
|
||
}
|
||
|
||
screenReader.active = isActive;
|
||
localStorage.setItem('screenReader', isActive);
|
||
|
||
try {
|
||
if (isActive) {
|
||
document.addEventListener('focusin', screenReader.handleFocus);
|
||
const feedbackSpeech = new SpeechSynthesisUtterance(WIDGET_CONFIG.lang.screenReaderOn);
|
||
feedbackSpeech.lang = 'en-US';
|
||
feedbackSpeech.onerror = function (event) {
|
||
console.warn('Speech synthesis feedback error:', event.error);
|
||
};
|
||
window.speechSynthesis.speak(feedbackSpeech);
|
||
} else {
|
||
document.removeEventListener('focusin', screenReader.handleFocus);
|
||
window.speechSynthesis.cancel();
|
||
const feedbackSpeech = new SpeechSynthesisUtterance(WIDGET_CONFIG.lang.screenReaderOff);
|
||
feedbackSpeech.lang = 'en-US';
|
||
feedbackSpeech.onerror = function (event) {
|
||
console.warn('Speech synthesis feedback error:', event.error);
|
||
};
|
||
window.speechSynthesis.speak(feedbackSpeech);
|
||
}
|
||
} catch (error) {
|
||
console.warn('Screen reader toggle error:', error);
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
},
|
||
};
|
||
|
||
// Voice control functionality
|
||
const voiceControl = {
|
||
isActive: localStorage.getItem('voiceControl') === 'true',
|
||
recognition: null,
|
||
isSupported: 'SpeechRecognition' in window || 'webkitSpeechRecognition' in window,
|
||
retryCount: 0,
|
||
maxRetries: 3,
|
||
toggle: function (isActive) {
|
||
if (!voiceControl.isSupported) {
|
||
console.warn(`Speech Recognition API ${WIDGET_CONFIG.lang.notSupportedBrowser}`);
|
||
return false;
|
||
}
|
||
|
||
voiceControl.isActive = isActive;
|
||
localStorage.setItem('voiceControl', isActive);
|
||
|
||
try {
|
||
if (isActive) {
|
||
voiceControl.startListening();
|
||
} else {
|
||
if (voiceControl.recognition) {
|
||
voiceControl.recognition.stop();
|
||
voiceControl.recognition = null;
|
||
}
|
||
voiceControl.retryCount = 0;
|
||
}
|
||
} catch (error) {
|
||
console.warn('Voice control toggle error:', error);
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
},
|
||
startListening: function () {
|
||
if (!voiceControl.isSupported) {
|
||
return;
|
||
}
|
||
|
||
try {
|
||
const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
|
||
voiceControl.recognition = new SpeechRecognition();
|
||
voiceControl.recognition.interimResults = false;
|
||
voiceControl.recognition.lang = 'en-US';
|
||
voiceControl.recognition.continuous = false;
|
||
|
||
voiceControl.recognition.onstart = function () {
|
||
console.log(WIDGET_CONFIG.lang.voiceControlActivated);
|
||
voiceControl.retryCount = 0;
|
||
};
|
||
|
||
voiceControl.recognition.onresult = function (event) {
|
||
try {
|
||
const command = event.results[0][0].transcript.toLowerCase();
|
||
voiceControl.handleVoiceCommand(command);
|
||
} catch (error) {
|
||
console.warn('Voice command processing error:', error);
|
||
}
|
||
};
|
||
|
||
voiceControl.recognition.onerror = function (event) {
|
||
console.warn('Speech recognition error:', event.error);
|
||
if (event.error === 'no-speech' && voiceControl.retryCount < voiceControl.maxRetries) {
|
||
voiceControl.retryCount++;
|
||
setTimeout(() => {
|
||
if (voiceControl.isActive) {
|
||
voiceControl.startListening();
|
||
}
|
||
}, 1000);
|
||
}
|
||
};
|
||
|
||
voiceControl.recognition.onend = function () {
|
||
if (voiceControl.isActive && voiceControl.retryCount < voiceControl.maxRetries) {
|
||
setTimeout(() => {
|
||
if (voiceControl.isActive) {
|
||
voiceControl.startListening();
|
||
}
|
||
}, 100);
|
||
}
|
||
};
|
||
|
||
voiceControl.recognition.start();
|
||
} catch (error) {
|
||
console.warn('Voice control initialization error:', error);
|
||
}
|
||
},
|
||
handleVoiceCommand: function (command) {
|
||
console.log(`Received command: ${command}`);
|
||
|
||
try {
|
||
// Check for show menu commands
|
||
if (WIDGET_CONFIG.voiceCommands.showMenu.some(cmd => command.includes(cmd))) {
|
||
if (!menuCache.button) menuCache.init();
|
||
if (menuCache.button) {
|
||
menuCache.button.click();
|
||
}
|
||
return;
|
||
}
|
||
|
||
// Check for reset all commands
|
||
if (WIDGET_CONFIG.voiceCommands.resetAll.some(cmd => command.includes(cmd))) {
|
||
resetAccessibilitySettings();
|
||
return;
|
||
}
|
||
|
||
// Build dynamic command map based on configuration
|
||
let localStorageKey = null;
|
||
|
||
// Check each command group
|
||
if (WIDGET_CONFIG.voiceCommands.highContrast.some(cmd => command.includes(cmd))) {
|
||
localStorageKey = 'highContrast';
|
||
} else if (WIDGET_CONFIG.voiceCommands.biggerText.some(cmd => command.includes(cmd))) {
|
||
localStorageKey = 'biggerText';
|
||
} else if (WIDGET_CONFIG.voiceCommands.textSpacing.some(cmd => command.includes(cmd))) {
|
||
localStorageKey = 'textSpacing';
|
||
} else if (WIDGET_CONFIG.voiceCommands.pauseAnimations.some(cmd => command.includes(cmd))) {
|
||
localStorageKey = 'pauseAnimations';
|
||
} else if (WIDGET_CONFIG.voiceCommands.hideImages.some(cmd => command.includes(cmd))) {
|
||
localStorageKey = 'hideImages';
|
||
} else if (WIDGET_CONFIG.voiceCommands.dyslexiaFont.some(cmd => command.includes(cmd))) {
|
||
localStorageKey = 'dyslexiaFont';
|
||
} else if (WIDGET_CONFIG.voiceCommands.biggerCursor.some(cmd => command.includes(cmd))) {
|
||
localStorageKey = 'biggerCursor';
|
||
} else if (WIDGET_CONFIG.voiceCommands.lineHeight.some(cmd => command.includes(cmd))) {
|
||
localStorageKey = 'lineHeight';
|
||
} else if (WIDGET_CONFIG.voiceCommands.textAlign.some(cmd => command.includes(cmd))) {
|
||
localStorageKey = 'textAlign';
|
||
} else if (WIDGET_CONFIG.voiceCommands.screenReader.some(cmd => command.includes(cmd))) {
|
||
localStorageKey = 'screenReader';
|
||
} else if (WIDGET_CONFIG.voiceCommands.voiceControl.some(cmd => command.includes(cmd))) {
|
||
localStorageKey = 'voiceControl';
|
||
}
|
||
|
||
if (localStorageKey) {
|
||
// Use cached menu reference if available
|
||
if (!menuCache.menu) menuCache.init();
|
||
const button = menuCache.menu?.querySelector(
|
||
`.snn-accessibility-option[data-key='${localStorageKey}']`
|
||
);
|
||
if (button) {
|
||
button.click();
|
||
} else {
|
||
console.log('Button not found for command:', command);
|
||
}
|
||
} else {
|
||
console.log('Command not recognized:', command);
|
||
}
|
||
} catch (error) {
|
||
console.warn('Voice command handling error:', error);
|
||
}
|
||
},
|
||
};
|
||
|
||
// Create the accessibility menu
|
||
function createAccessibilityMenu() {
|
||
const menu = document.createElement('div');
|
||
menu.id = 'snn-accessibility-menu';
|
||
menu.style.display = 'none';
|
||
menu.setAttribute('role', 'dialog');
|
||
menu.setAttribute('aria-labelledby', 'snn-accessibility-title');
|
||
menu.setAttribute('aria-hidden', 'true');
|
||
|
||
const header = document.createElement('div');
|
||
header.classList.add('snn-header');
|
||
|
||
const title = document.createElement('div');
|
||
title.classList.add('snn-title');
|
||
title.id = 'snn-accessibility-title';
|
||
title.textContent = WIDGET_CONFIG.lang.accessibilityTools;
|
||
|
||
const closeButton = document.createElement('button');
|
||
closeButton.className = 'snn-close';
|
||
closeButton.innerHTML = '';
|
||
closeButton.setAttribute('title', WIDGET_CONFIG.lang.closeAccessibilityMenu);
|
||
|
||
closeButton.addEventListener('click', function () {
|
||
closeMenu();
|
||
});
|
||
|
||
closeButton.addEventListener('keydown', function (e) {
|
||
if (e.key === 'Enter' || e.key === ' ') {
|
||
e.preventDefault();
|
||
closeMenu();
|
||
}
|
||
});
|
||
|
||
header.appendChild(title);
|
||
header.appendChild(closeButton);
|
||
menu.appendChild(header);
|
||
|
||
// Create content wrapper
|
||
const content = document.createElement('div');
|
||
content.classList.add('snn-content');
|
||
|
||
// Create reset button (outside grid, full width)
|
||
const resetButton = document.createElement('button');
|
||
resetButton.innerHTML = `<span class="snn-icon">${icons.resetAll}</span><span class="snn-button-text">${WIDGET_CONFIG.lang.resetAllSettings}</span>`;
|
||
resetButton.setAttribute('aria-label', WIDGET_CONFIG.lang.resetAllSettings);
|
||
resetButton.classList.add('snn-reset-button');
|
||
resetButton.addEventListener('click', resetAccessibilitySettings);
|
||
content.appendChild(resetButton);
|
||
|
||
// Create grid wrapper for accessibility options
|
||
const optionsGrid = document.createElement('div');
|
||
optionsGrid.classList.add('snn-options-grid');
|
||
|
||
// ===================================================================
|
||
// UNIFIED BUTTON CONFIGURATION WITH EXPLICIT ORDERING
|
||
// Add/remove/reorder buttons by changing the 'order' property
|
||
// Lower order numbers appear first, higher numbers appear last
|
||
// ===================================================================
|
||
const allButtonConfigs = [
|
||
// Order 1-4: Primary accessibility features (as requested)
|
||
{
|
||
order: 1,
|
||
type: 'action',
|
||
text: WIDGET_CONFIG.lang.textSize,
|
||
actionFunction: handleBiggerText,
|
||
icon: icons.biggerText,
|
||
enabled: WIDGET_CONFIG.enableBiggerText,
|
||
},
|
||
{
|
||
order: 2,
|
||
type: 'action',
|
||
text: WIDGET_CONFIG.lang.highContrast,
|
||
actionFunction: handleHighContrast,
|
||
icon: icons.highContrast,
|
||
enabled: WIDGET_CONFIG.enableHighContrast,
|
||
},
|
||
{
|
||
order: 3,
|
||
type: 'action',
|
||
text: WIDGET_CONFIG.lang.textAlign,
|
||
actionFunction: handleTextAlign,
|
||
icon: icons.textAlign,
|
||
enabled: WIDGET_CONFIG.enableTextAlign,
|
||
},
|
||
{
|
||
order: 4,
|
||
type: 'action',
|
||
text: WIDGET_CONFIG.lang.colorFilter,
|
||
actionFunction: handleColorFilter,
|
||
icon: icons.colorFilter,
|
||
enabled: WIDGET_CONFIG.enableColorFilter,
|
||
},
|
||
|
||
// Order 5-11: Other visual/text features
|
||
{
|
||
order: 5,
|
||
type: 'toggle',
|
||
text: WIDGET_CONFIG.lang.textSpacing,
|
||
key: 'textSpacing',
|
||
className: 'snn-text-spacing',
|
||
icon: icons.textSpacing,
|
||
enabled: WIDGET_CONFIG.enableTextSpacing,
|
||
},
|
||
{
|
||
order: 6,
|
||
type: 'toggle',
|
||
text: WIDGET_CONFIG.lang.lineHeight,
|
||
key: 'lineHeight',
|
||
className: 'snn-line-height',
|
||
icon: icons.lineHeight,
|
||
enabled: WIDGET_CONFIG.enableLineHeight,
|
||
},
|
||
{
|
||
order: 7,
|
||
type: 'action',
|
||
text: WIDGET_CONFIG.lang.fontSelection,
|
||
actionFunction: handleFontSelection,
|
||
icon: icons.fontSelection,
|
||
enabled: WIDGET_CONFIG.enableFontSelection,
|
||
},
|
||
{
|
||
order: 8,
|
||
type: 'toggle',
|
||
text: WIDGET_CONFIG.lang.dyslexiaFriendly,
|
||
key: 'dyslexiaFont',
|
||
className: 'snn-dyslexia-font',
|
||
icon: icons.dyslexiaFont,
|
||
enabled: WIDGET_CONFIG.enableDyslexiaFont,
|
||
},
|
||
{
|
||
order: 9,
|
||
type: 'toggle',
|
||
text: WIDGET_CONFIG.lang.biggerCursor,
|
||
key: 'biggerCursor',
|
||
className: 'snn-bigger-cursor',
|
||
icon: icons.biggerCursor,
|
||
enabled: WIDGET_CONFIG.enableBiggerCursor,
|
||
},
|
||
{
|
||
order: 10,
|
||
type: 'toggle',
|
||
text: WIDGET_CONFIG.lang.hideImages,
|
||
key: 'hideImages',
|
||
icon: icons.hideImages,
|
||
customToggleFunction: toggleHideImages,
|
||
enabled: WIDGET_CONFIG.enableHideImages,
|
||
},
|
||
|
||
// Order 11-12: Animation controls
|
||
{
|
||
order: 11,
|
||
type: 'toggle',
|
||
text: WIDGET_CONFIG.lang.pauseAnimations,
|
||
key: 'pauseAnimations',
|
||
className: 'snn-pause-animations',
|
||
icon: icons.pauseAnimations,
|
||
enabled: WIDGET_CONFIG.enablePauseAnimations,
|
||
},
|
||
{
|
||
order: 12,
|
||
type: 'toggle',
|
||
text: WIDGET_CONFIG.lang.reducedMotion,
|
||
key: 'reducedMotion',
|
||
className: 'snn-reduced-motion',
|
||
icon: icons.reducedMotion,
|
||
enabled: WIDGET_CONFIG.enableReducedMotion,
|
||
},
|
||
|
||
// Order 98-99: Screen Reader and Voice Control (always last)
|
||
{
|
||
order: 98,
|
||
type: 'toggle',
|
||
text: WIDGET_CONFIG.lang.screenReader,
|
||
key: 'screenReader',
|
||
customToggleFunction: screenReader.toggle,
|
||
icon: icons.screenReader,
|
||
requiresFeature: screenReader,
|
||
enabled: WIDGET_CONFIG.enableScreenReader,
|
||
},
|
||
{
|
||
order: 99,
|
||
type: 'toggle',
|
||
text: WIDGET_CONFIG.lang.voiceCommand,
|
||
key: 'voiceControl',
|
||
customToggleFunction: voiceControl.toggle,
|
||
icon: icons.voiceControl,
|
||
requiresFeature: voiceControl,
|
||
enabled: WIDGET_CONFIG.enableVoiceControl,
|
||
},
|
||
];
|
||
|
||
// Sort buttons by order and add only enabled ones to the grid
|
||
allButtonConfigs
|
||
.filter(config => config.enabled)
|
||
.sort((a, b) => a.order - b.order)
|
||
.forEach((config) => {
|
||
let button;
|
||
|
||
if (config.type === 'action') {
|
||
button = createActionButton(config.text, config.actionFunction, config.icon);
|
||
} else if (config.type === 'toggle') {
|
||
button = createToggleButton(
|
||
config.text,
|
||
config.key,
|
||
config.className,
|
||
config.target || document.body,
|
||
config.customToggleFunction,
|
||
config.icon,
|
||
config.requiresFeature
|
||
);
|
||
}
|
||
|
||
if (button) {
|
||
optionsGrid.appendChild(button);
|
||
}
|
||
});
|
||
|
||
// Add grid to content
|
||
content.appendChild(optionsGrid);
|
||
|
||
// Add content to menu
|
||
menu.appendChild(content);
|
||
|
||
shadowRoot.appendChild(menu);
|
||
}
|
||
|
||
// ===========================================
|
||
// MENU MANAGEMENT
|
||
// ===========================================
|
||
|
||
// Cache for menu elements
|
||
const menuCache = {
|
||
menu: null,
|
||
button: null,
|
||
closeButton: null,
|
||
init: function () {
|
||
this.menu = shadowRoot.getElementById('snn-accessibility-menu');
|
||
this.button = shadowRoot.getElementById('snn-accessibility-button');
|
||
this.closeButton = this.menu?.querySelector('.snn-close');
|
||
}
|
||
};
|
||
|
||
// Menu control functions (optimized)
|
||
function toggleMenu() {
|
||
if (!menuCache.menu) menuCache.init();
|
||
const isOpen = menuCache.menu.style.display === 'block';
|
||
|
||
if (isOpen) {
|
||
closeMenu();
|
||
} else {
|
||
openMenu();
|
||
}
|
||
}
|
||
|
||
function openMenu() {
|
||
if (!menuCache.menu) menuCache.init();
|
||
menuCache.menu.style.display = 'block';
|
||
menuCache.menu.setAttribute('aria-hidden', 'false');
|
||
|
||
if (menuCache.closeButton) {
|
||
menuCache.closeButton.focus();
|
||
}
|
||
|
||
// Add keyboard navigation
|
||
document.addEventListener('keydown', handleMenuKeyboard);
|
||
}
|
||
|
||
function closeMenu() {
|
||
if (!menuCache.menu) menuCache.init();
|
||
menuCache.menu.style.display = 'none';
|
||
menuCache.menu.setAttribute('aria-hidden', 'true');
|
||
|
||
if (menuCache.button) {
|
||
menuCache.button.focus();
|
||
}
|
||
|
||
// Remove keyboard navigation
|
||
document.removeEventListener('keydown', handleMenuKeyboard);
|
||
}
|
||
|
||
// Cache for keyboard navigation elements
|
||
let keyboardCache = {
|
||
focusableElements: null,
|
||
lastUpdate: 0,
|
||
getFocusableElements: function () {
|
||
const now = Date.now();
|
||
if (!this.focusableElements || now - this.lastUpdate > 1000) {
|
||
if (menuCache.menu) {
|
||
this.focusableElements = {
|
||
all: menuCache.menu.querySelectorAll('button, [href], input, select, textarea, [tabindex]:not([tabindex="-1"])'),
|
||
options: Array.from(menuCache.menu.querySelectorAll('.snn-accessibility-option, .snn-close'))
|
||
};
|
||
this.lastUpdate = now;
|
||
}
|
||
}
|
||
return this.focusableElements;
|
||
}
|
||
};
|
||
|
||
function handleMenuKeyboard(e) {
|
||
if (!menuCache.menu || menuCache.menu.style.display !== 'block') return;
|
||
|
||
if (e.key === 'Escape') {
|
||
e.preventDefault();
|
||
closeMenu();
|
||
return;
|
||
}
|
||
|
||
const elements = keyboardCache.getFocusableElements();
|
||
if (!elements) return;
|
||
|
||
if (e.key === 'Tab') {
|
||
const firstElement = elements.all[0];
|
||
const lastElement = elements.all[elements.all.length - 1];
|
||
|
||
if (e.shiftKey) {
|
||
if (document.activeElement === firstElement) {
|
||
e.preventDefault();
|
||
lastElement.focus();
|
||
}
|
||
} else {
|
||
if (document.activeElement === lastElement) {
|
||
e.preventDefault();
|
||
firstElement.focus();
|
||
}
|
||
}
|
||
}
|
||
|
||
if (e.key === 'ArrowDown' || e.key === 'ArrowUp') {
|
||
e.preventDefault();
|
||
const currentIndex = elements.options.indexOf(shadowRoot.activeElement);
|
||
let nextIndex;
|
||
|
||
if (e.key === 'ArrowDown') {
|
||
nextIndex = currentIndex === elements.options.length - 1 ? 0 : currentIndex + 1;
|
||
} else {
|
||
nextIndex = currentIndex === 0 ? elements.options.length - 1 : currentIndex - 1;
|
||
}
|
||
|
||
elements.options[nextIndex].focus();
|
||
}
|
||
}
|
||
|
||
// ===========================================
|
||
// INITIALIZATION
|
||
// ===========================================
|
||
|
||
// Initialize the widget
|
||
function initAccessibilityWidget() {
|
||
// Create shadow DOM first
|
||
createShadowContainer();
|
||
|
||
// Inject page styles (for accessibility features)
|
||
injectPageStyles();
|
||
|
||
// Apply saved settings
|
||
applySettings();
|
||
|
||
// Create widget UI inside shadow DOM
|
||
createAccessibilityButton();
|
||
createAccessibilityMenu();
|
||
}
|
||
|
||
// ===========================================
|
||
// WIDGET BOOTSTRAP
|
||
// ===========================================
|
||
|
||
// Load the widget when the DOM is fully loaded
|
||
if (document.readyState === 'loading') {
|
||
document.addEventListener('DOMContentLoaded', initAccessibilityWidget);
|
||
} else {
|
||
initAccessibilityWidget();
|
||
} |