Liesel Clark Addresses the 2019 Michigan Climate Action Summit

/*prevent FOUC on mobile when using sidebar */ .dwc-mobile :is(.bricks-is-frontend.brx-header-left, .bricks-is-frontend.brx-header-right) #brx-header { position: relative; inline-size: 100%; flex-direction: column; } .dwc-mobile .bricks-is-frontend:is(.brx-header-left, .brx-header-right) :is(#brx-content, #brx-footer) { margin-inline-start: 0; } /*prevent FOUC on desktop when using sidebar */ .bricks-is-frontend:is(.brx-header-left, .brx-header-right):not(.show-nav) #dwc_nav_wrapper { display: none; } /*=== sidebar css ===*/ html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header { flex-direction: column; box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.7); } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]).no-scroll { overflow: visible; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header .dwc-nest-menu.brxe-nav-nested .brx-nav-nested-items { max-block-size: 100dvb; padding-block-end: 12rem; overscroll-behavior: contain; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header #dwc_nav_wrapper { position: relative; overflow: hidden; block-size: 100%; transform: translateX(0%); visibility: visible; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #dwc-nest-menu .brxe-toggle { display: none !important; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header .dwc-nest-menu { display: flex; flex-direction: column; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header .dwc-nest-header > div { display: flex; grid-template-columns: 1fr; block-size: 100%; flex-direction: column; justify-content: flex-start; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header .dwc-menu-wrap { inline-size: 100%; display: grid; grid-template-columns: 1fr; block-size: 100%; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header :is(.brxe-code, .dwc-nest-menu-overlay) { display: none; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header .dwc-nest-header { inline-size: 100%; padding-inline: 0; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header #mobile_menu_top { min-block-size: var(--top-offset); } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header #dwc-nest-menu:not( [data-hide-close-bar = 'true']) .brx-dropdown-content { inset-block-start: calc(var(--top-offset) + 1px) !important; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header #dwc-nest-menu:not( [data-submenu-reveal = 'slide']) .brx-dropdown-content:not([data-submenu-reveal = 'slide'] *) { inset-inline-start: 0; inset-block-start: unset !important; overflow: hidden; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header #dwc-nest-menu:not([data-submenu-reveal = 'slide']) .brxe-dropdown:not(.open.active) > .brx-dropdown-content > .brxe-dropdown:not([data-submenu-reveal = 'slide'] *){ visibility: hidden; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header .dwc-nest-menu.brxe-nav-nested.brx-open .brxe-dropdown > .brx-dropdown-content { overscroll-behavior: contain; min-inline-size: var(--mobile-menu-width); } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header #dwc-nest-menu .brxe-dropdown.open > .brx-submenu-toggle button:not([data-submenu-reveal = 'expand'] button) { min-block-size: calc(var(--top-offset) - 1px); inset-block-start: 0; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header #dwc-nest-menu .brxe-dropdown.open[data-submenu-reveal = 'slide'] > .brx-submenu-toggle button { min-block-size: calc(var(--top-offset) - 1px); inset-block-start: 0; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header #dwc-nest-menu .brxe-dropdown .brx-submenu-toggle button { min-block-size: 0; } /* sidebar css ends*/ /*sidebar in builder*/ /*=== sidebar css ===*/ :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header { flex-direction: column; box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.7); --top-offset: 40px; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header .dwc-nest-menu.brxe-nav-nested .brx-nav-nested-items { max-block-size: 100dvb; padding-block-end: 12rem; overscroll-behavior: contain; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header #dwc_nav_wrapper { position: relative; overflow: hidden; block-size: 100%; transform: translateX(0%); visibility: visible; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #dwc-nest-menu .brxe-toggle { display: none !important; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header .dwc-nest-menu { display: flex; flex-direction: column; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header .dwc-nest-header > div { display: flex; grid-template-columns: 1fr; block-size: 100%; flex-direction: column; justify-content: flex-start; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header .dwc-menu-wrap { inline-size: 100%; display: grid; grid-template-columns: 1fr; block-size: 100%; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header .dwc-nest-header { inline-size: 100%; padding-inline: 0; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header #mobile_menu_top { min-block-size: var(--top-offset); } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header #dwc-nest-menu .brx-dropdown-content { inset-block-start: calc(var(--top-offset) - 1px) !important; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header .dwc-nest-menu.brxe-nav-nested.brx-open .brxe-dropdown > .brx-dropdown-content { overscroll-behavior: contain; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header #dwc-nest-menu .brxe-dropdown.open > .brx-submenu-toggle button { min-block-size: calc(var(--top-offset) - 1px); inset-block-start: 0; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header #dwc-nest-menu .brxe-dropdown .brx-submenu-toggle button { min-block-size: 0; } :is(.brx-header-left, .brx-header-right)[data-builder-window] .dwc-nest-menu { margin: 0 !important; } :is(.brx-header-left, .brx-header-right)[data-builder-window] .brx-nav-nested-items { flex-direction: column !important; } :is(.brx-header-left, .brx-header-right)[data-builder-window] .dwc-nest-toggle--open.brxe-toggle { display: flex !important; } :is(.brx-header-left, .brx-header-right)[data-builder-window] .dwc-nest-menu .brx-nav-nested-items { position: relative !Important; background: var(--mobile-menu-bg) !important; align-items: stretch; flex: 1; } /* MENU CTA (LAST BUTTON) */ :is(.brx-header-left, .brx-header-right)[data-builder-window] [data-last-item-is-button="true"].dwc-nest-menu .brx-nav-nested-items > .menu-item:last-of-type { padding-inline: var(--menu-item-inline-padding) !important; padding-block: var(--menu-item-block-padding) !important; } :is(.brx-header-left, .brx-header-right)[data-builder-window] .dwc-nest-menu-top { min-block-size: 80px !important; } :is(.brx-header-left, .brx-header-right)[data-builder-window] .dwc-nest-nav-items { overflow-y: scroll; } :is(.brx-header-left, .brx-header-right)[data-builder-mode] .brx-dropdown-content { min-inline-size: var(--mobile-menu-width); position: static; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header .dwc-nest-menu.brxe-nav-nested .brx-nav-nested-items { flex-wrap: nowrap; } :is(.brx-header-left, .brx-header-right)[data-builder-window] #brx-header #dwc-nest-menu .brx-dropdown-content { visibility: visible !important; opacity: 1; } /*OVERLAY SIDEBAR*/ html:not(.dwc-mobile):has([data-overlay-sidebar=true]) { --mobile-menu-bg: rgb(255 255 255 / 0%); --menu-item-border: solid 1px rgb(255 255 255 / 50%); } html:not(.dwc-mobile):has([data-overlay-sidebar=true]) :is(.brx-header-left, .brx-header-right):not([data-builder-modee]) :is(main, footer){ margin: 0 !important } html:not(.dwc-mobile):has([data-overlay-sidebar=true]) :is(.brx-header-left, .brx-header-right):not([data-builder-modee]) :is(main, footer) :where(section):not(section>section) { padding-inline-start: calc(var(--mobile-menu-width) + clamp(1.5rem, calc(0.625vw + 1.375rem), 1.875rem)); max-inline-size: 100% } html:not(.dwc-mobile):has([data-overlay-sidebar=true]) :is(.brx-header-left, .brx-header-right):not([data-builder-modee]) #brx-header { border-radius: var(--overlay-sidebar-radius); overflow: hidden; background: var(--overlay-sidebar-bg); box-shadow: var(--overlay-sidebar-shadow) !important; inset: var(--overlay-sidebar-inset); } html:not(.dwc-mobile):has([data-overlay-sidebar=true]) :is(.brx-header-left, .brx-header-right):not([data-builder-modee]) .dwc-nest-header{ backdrop-filter: blur(13px); background: transparent !important; } html:not(.dwc-mobile):has([data-overlay-sidebar=true]):not([data-builder-modee]) .brx-dropdown-content { background-color: rgb(255 255 255 / 100%); } /*NO BRX-OPEN STYLES*/ html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) #brx-header .dwc-nest-menu.brxe-nav-nested .brx-nav-nested-items { display: flex; flex-wrap: nowrap; flex-direction: column !important; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) .dwc-nest-menu.brxe-nav-nested .brxe-dropdown .brx-dropdown-content { visibility: visible; min-inline-size: var(--mobile-menu-width) !important; } html:not(.dwc-mobile) :is(.brx-header-left, .brx-header-right):not([data-builder-window]) .dwc-nest-menu[data-submenu-reveal="expand"] .brxe-dropdown.open>.brx-dropdown-content { position: static; }

class SidebarNavigation { constructor(options = {}) { // Basic configuration properties this.config = { minWidth: options.minWidth || MegaMenuCONFIG.minWidth, // Using external minWidth variable menuSelector: options.menuSelector || '.dwc-nest-menu', openClass: options.openClass || 'brx-open', activeClasses: options.activeClasses || ['open', 'active'], leftHeaderClass: options.leftHeaderClass || 'brx-header-left', rightHeaderClass: options.rightHeaderClass || 'brx-header-right', debounceDelay: options.debounceDelay || 100, menuItemClickDelay: options.menuItemClickDelay || 300 }; // Set dependent selectors const menuSelector = this.config.menuSelector; this.config.submenuToggleSelector = options.submenuToggleSelector || `${menuSelector} .brx-submenu-toggle`; this.config.dropdownSelector = options.dropdownSelector || `${menuSelector} .brxe-dropdown`; this.config.dropdownContentSelector = options.dropdownContentSelector || `${menuSelector} .brx-dropdown-content`; // State this.previousHeaderClass = null; this.dropdownClickHandlers = new Map(); this.menuHoverHandlers = null; this.menuItemClickTimeout = null; this.keyboardNavHandler = null; this.cachedFocusableElements = null; this.cachedElements = { menuElement: null, navElement: null, dropdowns: null, dropdownToggles: null, menuItems: null }; // Bind methods to this instance this.handleResize = this.debounce(this.handleMenu.bind(this), this.config.debounceDelay); this.handleOutsideClick = this.handleOutsideClick.bind(this); } // Initialize everything - called once init() { // Wait for DOM to be fully loaded before attaching events if (document.readyState === 'loading') { document.addEventListener('DOMContentLoaded', () => { this.initAfterDOMLoaded(); }, { once: true }); } else { this.initAfterDOMLoaded(); } return this; } // Separate initialization method to run after DOM is loaded initAfterDOMLoaded() { // Cache DOM elements once this.cacheElements(); // Setup resize event with passive flag window.addEventListener('resize', this.handleResize, { passive: true }); // Setup mutation observer for critical class changes only this.setupMutationObserver(); // Initial setup based on current screen size this.handleMenu(); // Cache focusable elements once if header class is present if (this.hasHeaderClass()) { this.cacheFocusableElements(); this.setupMenuFocusNavigation(); } } // Cache all required DOM elements upfront cacheElements() { this.cachedElements.menuElement = document.querySelector(this.config.menuSelector); if (this.cachedElements.menuElement) { this.cachedElements.navElement = this.cachedElements.menuElement.querySelector('.dwc-nest-nav-items'); this.cachedElements.dropdowns = Array.from(document.querySelectorAll(this.config.dropdownSelector)); this.cachedElements.dropdownToggles = Array.from(document.querySelectorAll(this.config.submenuToggleSelector)); this.cachedElements.menuItems = Array.from(document.querySelectorAll(`${this.config.menuSelector} .menu-item`)); } } // Set up a focused mutation observer only for dropdown state changes setupMutationObserver() { if (!this.cachedElements.dropdowns || this.cachedElements.dropdowns.length === 0) return; const callback = (mutations) => { for (let mutation of mutations) { if (mutation.type === 'attributes' && mutation.attributeName === 'class') { const target = mutation.target; const prevClassList = mutation.oldValue ? mutation.oldValue.split(' ') : []; const hadBothBefore = prevClassList.includes('open') && prevClassList.includes('active'); const hasBothNow = target.classList.contains('open') && target.classList.contains('active'); if (hadBothBefore !== hasBothNow) { this.updateDropdownAccessibility(); break; // Only need to update once per batch } } } }; // Create observer with optimized options this.classObserver = new MutationObserver(callback); // Observe only the dropdown elements this.cachedElements.dropdowns.forEach(dropdown => { this.classObserver.observe(dropdown, { attributes: true, attributeFilter: ['class'], attributeOldValue: true }); }); } // Cache focusable elements for keyboard navigation cacheFocusableElements() { if (!this.cachedElements.navElement) return; // Get direct children of nav const directChildren = Array.from(this.cachedElements.navElement.children); // Find the first focusable element within each direct child this.cachedFocusableElements = directChildren.map(child => { // Check if the child itself is focusable if (child.matches('a, button, input, select, textarea, [tabindex]:not([tabindex="-1"])')) { return child; } // Otherwise, find the first focusable element within this child return child.querySelector('a, button, input, select, textarea, [tabindex]:not([tabindex="-1"])'); }).filter(Boolean); // Remove null/undefined values } // Clean up all event listeners and observers destroy() { // Clean up the mutation observer if (this.classObserver) { this.classObserver.disconnect(); this.classObserver = null; } // Clean up resize listener window.removeEventListener('resize', this.handleResize); // Clean up click handlers if (this.dropdownClickHandlers.size > 0) { this.dropdownClickHandlers.forEach((handler, toggle) => { toggle.removeEventListener('click', handler); }); this.dropdownClickHandlers.clear(); } // Clean up hover handlers this.cleanupMenuHover(); // Clean up menu item click handlers this.cleanupMenuItemClicks(); // Clean up outside click handler document.removeEventListener('click', this.handleOutsideClick); // Clean up keyboard navigation if (this.keyboardNavHandler) { document.removeEventListener('keydown', this.keyboardNavHandler); this.keyboardNavHandler = null; } // Clear any pending timeouts if (this.menuItemClickTimeout) { clearTimeout(this.menuItemClickTimeout); this.menuItemClickTimeout = null; } } // Utility methods hasHeaderClass() { return document.body.classList.contains(this.config.leftHeaderClass) || document.body.classList.contains(this.config.rightHeaderClass); } debounce(func, delay) { let timer; return (...args) => { clearTimeout(timer); timer = setTimeout(() => func(...args), delay); }; } // Check if an element has all the required active classes hasAllActiveClasses(element) { return this.config.activeClasses.every(className => element.classList.contains(className)); } // Toggle all active classes on an element toggleActiveClasses(element) { this.config.activeClasses.forEach(className => { element.classList.toggle(className); }); } // Core functionality methods handleMenu() { if (!this.cachedElements.menuElement) return; if (!this.hasHeaderClass() && !this.previousHeaderClass) return; const screenWidth = window.innerWidth; const isLargeScreen = screenWidth >= this.config.minWidth; const menuElement = this.cachedElements.menuElement; if (!isLargeScreen) { // Save which class was present before removal if (this.hasHeaderClass()) { this.previousHeaderClass = document.body.classList.contains(this.config.leftHeaderClass) ? this.config.leftHeaderClass : this.config.rightHeaderClass; // Remove header classes document.body.classList.remove(this.config.leftHeaderClass, this.config.rightHeaderClass); menuElement.classList.remove(this.config.openClass); // Reset accessibility attributes this.resetAccessibilityAttributes(); } // Clean up event handlers for mobile view this.cleanupMenuHover(); this.cleanupMenuItemClicks(); this.cleanupDropdownHandlers(); document.removeEventListener('click', this.handleOutsideClick); return; } // Large screen behavior if (!this.hasHeaderClass() && this.previousHeaderClass) { document.body.classList.add(this.previousHeaderClass); } if (this.hasHeaderClass()) { if (!menuElement.classList.contains(this.config.openClass)) { menuElement.classList.add(this.config.openClass); } // Setup elements for large screen view this.setupMenuHover(); this.setupMenuItemClicks(); this.setupDropdownHandlers(); this.setupMenuFocusNavigation(); this.updateDropdownAccessibility(); // Ensure outside click handler is set up document.removeEventListener('click', this.handleOutsideClick); document.addEventListener('click', this.handleOutsideClick, { passive: false }); } } // Reset accessibility attributes when switching to mobile resetAccessibilityAttributes() { if (!this.cachedElements.dropdowns) return; // Remove all inert attributes from dropdown contents this.cachedElements.dropdowns.forEach(dropdown => { const content = dropdown.querySelector(this.config.dropdownContentSelector); if (content) { content.removeAttribute('inert'); } const button = dropdown.querySelector('button'); if (button) { button.setAttribute('aria-expanded', 'false'); } }); } setupMenuFocusNavigation() { // Only run if hasHeaderClass() is true and we have focusable elements if (!this.hasHeaderClass() || !this.cachedFocusableElements || this.cachedFocusableElements.length === 0) { return; } // Clean up previous handler if it exists if (this.keyboardNavHandler) { document.removeEventListener('keydown', this.keyboardNavHandler, true); this.keyboardNavHandler = null; } const navMenu = this.cachedElements.menuElement; const focusableElements = this.cachedFocusableElements; const firstFocusableElement = focusableElements[0]; const lastFocusableElement = focusableElements[focusableElements.length - 1]; // Find adjacent focusable elements outside the menu (only once during setup) const headerElement = navMenu.closest('header') || document.querySelector('header'); // Prepare variables to hold adjacent elements let prevFocusableElement = null; let nextFocusableElement = null; let firstElementAfterHeader = null; if (headerElement) { // Get all focusable elements within the header - do this once and cache the result const headerFocusables = Array.from( headerElement.querySelectorAll('a:not([tabindex="-1"]), button:not([tabindex="-1"]), input:not([tabindex="-1"]), select:not([tabindex="-1"]), textarea:not([tabindex="-1"]), [tabindex]:not([tabindex="-1"])') ).filter(el => window.getComputedStyle(el).display !== 'none'); // Find the index of our first and last menu elements in one pass const menuStartIndex = headerFocusables.indexOf(firstFocusableElement); const menuEndIndex = headerFocusables.indexOf(lastFocusableElement); // Cache the adjacent elements if (menuStartIndex > 0) { prevFocusableElement = headerFocusables[menuStartIndex - 1]; } if (menuEndIndex !== -1 && menuEndIndex < headerFocusables.length - 1) { nextFocusableElement = headerFocusables[menuEndIndex + 1]; } // Pre-calculate the first element after header - but only if needed if (!nextFocusableElement) { // Use a more efficient selector that targets immediate children of body that aren't the header const selector = 'body > *:not(header)'; const nonHeaderElements = document.querySelectorAll(selector); // Only process if we have elements if (nonHeaderElements.length > 0) { // Create a function to find the first focusable element (used later if needed) this.findFirstFocusableAfterHeader = () => { for (const element of nonHeaderElements) { const focusable = element.querySelector('a:not([tabindex="-1"]), button:not([tabindex="-1"]), input:not([tabindex="-1"]), select:not([tabindex="-1"]), textarea:not([tabindex="-1"]), [tabindex]:not([tabindex="-1"])'); if (focusable && window.getComputedStyle(focusable).display !== 'none') { return focusable; } } return null; }; } } } // Create keyboard navigation handler with closure over the cached elements this.keyboardNavHandler = (e) => { // Quick check for Tab key first if (e.key !== 'Tab') return; // Then check if focus is inside the menu if (!navMenu.contains(document.activeElement)) return; let targetElement = null; // Handle tab navigation at boundaries only if (!e.shiftKey && document.activeElement === lastFocusableElement) { // Forward tab from last element e.preventDefault(); e.stopPropagation(); if (nextFocusableElement) { targetElement = nextFocusableElement; } else if (this.findFirstFocusableAfterHeader) { // Only search for elements after header if needed and not already found firstElementAfterHeader = this.findFirstFocusableAfterHeader(); targetElement = firstElementAfterHeader; } // Focus on the target or body as fallback setTimeout(() => { if (targetElement) { targetElement.focus(); } else { document.body.setAttribute('tabindex', '-1'); document.body.focus(); document.body.removeAttribute('tabindex'); } }, 10); } else if (e.shiftKey && document.activeElement === firstFocusableElement) { // Backward tab from first element e.preventDefault(); e.stopPropagation(); setTimeout(() => { if (prevFocusableElement) { prevFocusableElement.focus(); } else { document.body.setAttribute('tabindex', '-1'); document.body.focus(); document.body.removeAttribute('tabindex'); } }, 10); } }; // Use capture phase for the event document.addEventListener('keydown', this.keyboardNavHandler, true); } setupMenuHover() { const menuElement = this.cachedElements.menuElement; if (!menuElement) return; // Clean up existing hover handlers first this.cleanupMenuHover(); // Create event handlers const mouseenterHandler = () => { menuElement.classList.add(this.config.openClass); }; const mouseleaveHandler = () => { menuElement.classList.remove(this.config.openClass); }; // Add event listeners with passive flag for better performance menuElement.addEventListener('mouseenter', mouseenterHandler, { passive: true }); menuElement.addEventListener('mouseleave', mouseleaveHandler, { passive: true }); // Store the handlers for cleanup this.menuHoverHandlers = { element: menuElement, mouseenter: mouseenterHandler, mouseleave: mouseleaveHandler }; } cleanupMenuHover() { if (this.menuHoverHandlers) { const { element, mouseenter, mouseleave } = this.menuHoverHandlers; element.removeEventListener('mouseenter', mouseenter); element.removeEventListener('mouseleave', mouseleave); this.menuHoverHandlers = null; } } setupMenuItemClicks() { if (!this.cachedElements.menuItems || this.cachedElements.menuItems.length === 0) return; // Clean up existing handlers first this.cleanupMenuItemClicks(); const menuElement = this.cachedElements.menuElement; const menuItemHandlers = new Map(); this.cachedElements.menuItems.forEach(item => { const clickHandler = () => { if (this.hasHeaderClass()) { // Clear any existing timeout if (this.menuItemClickTimeout) { clearTimeout(this.menuItemClickTimeout); } // Set timeout before adding the class this.menuItemClickTimeout = setTimeout(() => { if (!menuElement.classList.contains(this.config.openClass)) { menuElement.classList.add(this.config.openClass); } }, this.config.menuItemClickDelay); } }; menuItemHandlers.set(item, clickHandler); item.addEventListener('click', clickHandler); }); this.menuItemClickHandlers = menuItemHandlers; } cleanupMenuItemClicks() { if (this.menuItemClickHandlers && this.menuItemClickHandlers instanceof Map) { this.menuItemClickHandlers.forEach((handler, item) => { item.removeEventListener('click', handler); }); this.menuItemClickHandlers.clear(); } if (this.menuItemClickTimeout) { clearTimeout(this.menuItemClickTimeout); this.menuItemClickTimeout = null; } } setupDropdownHandlers() { if (!this.hasHeaderClass() || !this.cachedElements.dropdownToggles) return; // Clean up existing handlers first this.cleanupDropdownHandlers(); this.cachedElements.dropdownToggles.forEach(toggle => { const clickHandler = (event) => { event.stopPropagation(); event.preventDefault(); const dropdown = toggle.closest(this.config.dropdownSelector); if (dropdown) { this.toggleActiveClasses(dropdown); this.updateDropdownAccessibility(); } }; this.dropdownClickHandlers.set(toggle, clickHandler); toggle.addEventListener('click', clickHandler); }); } cleanupDropdownHandlers() { if (this.dropdownClickHandlers.size > 0) { this.dropdownClickHandlers.forEach((handler, toggle) => { toggle.removeEventListener('click', handler); }); this.dropdownClickHandlers.clear(); } } handleOutsideClick(event) { if (event.target.tagName === 'A') return; if (!event.target.closest(this.config.dropdownSelector)) return; if (!event.target.closest(this.config.submenuToggleSelector)) { event.preventDefault(); event.stopPropagation(); } } updateDropdownAccessibility() { // Only run if hasHeaderClass() is true if (!this.hasHeaderClass() || !this.cachedElements.dropdowns) return; this.cachedElements.dropdowns.forEach(dropdown => { const content = dropdown.querySelector(this.config.dropdownContentSelector); const button = dropdown.querySelector('button'); // Check if dropdown has all active classes const isOpen = this.hasAllActiveClasses(dropdown); if (content) { if (isOpen) { content.removeAttribute('inert'); } else { content.setAttribute('inert', ''); } } if (button) { button.setAttribute('aria-expanded', isOpen ? 'true' : 'false'); } }); } } const sidebarNav = new SidebarNavigation().init();

February 28, 2019

Liesl Clark is the Director of the Michigan Department of Environmental Quality - soon to become The Michigan Department of Environment, Great Lakes, and Energy (EGLE). She addressed the attendees of the 2019 Michigan Climate Action Summit, held February 21, 2019, in Grand Rapids.

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