What Are UV Lamps Used For? Key Applications in Water Treatment & Beyond

const SITE = (window.C_SETTINGS || window[atob('U0hPUExBWlpB')])?.routes?.root || ''; const MARKET_THEME_SETTINGS = `${SITE}/api/markets/theme_setting`; const MARKET_COUNTRIES = `${SITE}/api/markets/countries`; const IP_MATCHING_MARKET = `${SITE}/api/front/station`; const MARKET_LANGUAGES = `${SITE}/api/markets/:id/active_languages`; const URL_REDIRECT = '_market_redirected'; const COOKIE_TIPS_NAME = 'market_no_tips'; const COOKIE_TIPS_EXPIRES = 1000 * 60 * 60 * 24 * 14; const MARKET_COUNTRY_COOKIE = '_shoplazza_market_country'; const MARKET_MODAL_LOADED = '__market_modal_loaded__'; const PROPERTY_SELECTED = 'selected'; const MARKET_PC_HEADER_TRIGGER = 'market-pc-header-trigger'; const MARKET_PC_HEADER_COUNTRY_SELECT_TITLE = 'market-pc-header-country-select-title'; const MARKET_PC_HEADER_LANGUAGE_SELECT_TITLE = 'market-pc-header-language-select-title'; const MARKET_PC_HEADER_LANGUAGE_SELECT_SUB_TITLE = 'market-pc-header-language-select-sub-title'; const MARKET_PC_HEADER_COUNTRY_SELECT_SUB_TITLE = 'market-pc-header-country-select-sub-title'; const MARKET_FLAG = 'market-flag'; const MARKET_SELECT_VALUE = 'market-select-value'; const MARKET_CURRENCY = 'market-currency'; const MARKET_CURRENCY_SYMBOL = 'market-currency-symbol'; const MARKET_SELECT_ITEM = 'market-select-item'; const MARKET_SELECT_ITEM_ID = 'market-select-item-id'; const MARKET_SELECT_LIST = 'market-select-list'; const MARKET_LANGUAGE_SELECT = 'market-language-select'; const MARKET_COUNTRY_SELECT = 'market-country-select'; const MARKET_MODAL = 'market-modal'; const MARKET_GATEWAY_REDIRECT_MODAL = 'market-gateway-redirect-modal'; const MARKET_RESELECT_MODAL = 'market-reselect-modal'; const MARKET_MODAL_FLAG = 'market-modal-flag'; const MARKET_MODAL_COUNTRY_CODE = 'market-modal-country-code'; const MARKET_MODAL_CURRENCY_SYMBOL = 'market-modal-currency-symbol'; const MARKET_MODAL_CLOSE = 'market-modal-close'; const MARKET_MODAL_CONFIRM = 'market-modal-confirm'; const MARKET_MODAL_RESELECT = 'market-modal-reselect'; const MARKET_MODAL_RESELECT_COUNTRY_SELECT = 'market-modal-reselect-country-select'; const DATA_SECTION_TYPE = 'data-section-type'; const SECTION_TYPE_HEADER = 'header'; const SECTION_TYPE_FOOTER = 'footer'; class SpzCustomMarket extends SPZ.BaseElement { constructor(element) { super(element); this.global = null; this.useCountrySelect_ = false; this.useLanguageSelect_ = false; this.useModal_ = false; this.isSingleSelectMode_ = false; this.blockSectionPosition_ = ''; this.isEditMode = false; this.ipMatchingMarket = null; this.marketCountryList = []; this.marketLanguages = []; this.toast = null; } static deferredMount() { return false; } isLayoutSupported(layout) { return layout == SPZCore.Layout.LOGIC; } buildCallback() { console.debug('Geolocation'); this.xhr_ = SPZServices.xhrFor(this.win); const platform = SPZServices.platformFor(this.win); this.isIOS_ = platform.isIos(); this.action_ = SPZServices.actionServiceForDoc(this.element); this.global = this.win.C_SETTINGS || this.win[atob('U0hPUExBWlpB')]; this.isEditMode = new URLSearchParams(this.win.location.search).get('preview_theme_id') && new URLSearchParams(this.win.location.search).get('oseid'); this.init_(); } showToast_(content) { if (!this.toast) { this.toast = self.document.createElement('ljs-toast'); this.toast.setAttribute('layout', 'nodisplay'); this.toast.setAttribute('hidden', ''); this.toast.setAttribute('duration', '2000'); this.element.appendChild(this.toast); } SPZ.whenApiDefined(this.toast).then((apis) => { apis.showToast(content); }); } triggerEvent_(name, data) { const event = SPZUtils.Event.create(this.win, `${TAG}.${name}`, data); this.action_.trigger(this.element, name, event); } findBlockSectionPosition() { let current = this.element; while (current) { const dataSectionType = current.getAttribute(DATA_SECTION_TYPE); if ( dataSectionType === SECTION_TYPE_HEADER || dataSectionType === SECTION_TYPE_FOOTER ) { return dataSectionType; } current = current.parentElement; } return ''; } async initSettings_() { await this.getMarketThemeSettings_(); if (this.useCountrySelect_) { this.element.setAttribute('use-country-select', true); } if (this.useLanguageSelect_) { this.element.setAttribute('use-language-select', true); } if (this.useModal_) { this.element.setAttribute('use-modal', true); } if ( (this.useCountrySelect_ && !this.useLanguageSelect_) || (!this.useCountrySelect_ && this.useLanguageSelect_) ) { this.isSingleSelectMode_ = true; } this.blockSectionPosition_ = this.findBlockSectionPosition(); this.isPCLayout_ = this.win.matchMedia('(min-width: 960px)').matches; } renderMarketSelectTemplateNode_(clonedTemplate, data) { this.renderTemplateImg_(clonedTemplate, MARKET_FLAG, { src: data?.flag, width: '24', height: '24', }); this.renderTemplateElement_( clonedTemplate, MARKET_SELECT_VALUE, data.value ); this.renderTemplateElement_( clonedTemplate, MARKET_CURRENCY, data?.currency ); this.renderTemplateElement_( clonedTemplate, MARKET_CURRENCY_SYMBOL, data?.currencySymbol ); } bindDropdownOpenClickEvent_(triggerElement, dropdown) { if (!triggerElement) return; const triggerOpen = () => { SPZ.whenApiDefined(dropdown).then((apis) => { if (!dropdown.hasAttribute('open')) { apis.open(triggerElement); } }); }; if (this.isIOS_) { triggerElement.addEventListener('touchstart', triggerOpen); } else { triggerElement.addEventListener('click', triggerOpen); } } createDropdown_() { const dropdown = self.document.createElement('ljs-dropdown'); dropdown.setAttribute('layout', 'nodisplay'); if (this.blockSectionPosition_ === 'header') { dropdown.setAttribute('overlay-style', 'top: 4px;'); dropdown.setAttribute('placement', 'bottomRight'); } else if (this.blockSectionPosition_ === 'footer') { dropdown.setAttribute('overlay-style', 'top: -4px;'); dropdown.setAttribute('placement', 'top'); } return dropdown; } createDropdownIcon_() { const svgElement = document.createElementNS("http://www.w3.org/2000/svg", "svg"); svgElement.setAttribute("class", "market-rotate-180"); svgElement.setAttribute("width", "16"); svgElement.setAttribute("height", "16"); const path1 = document.createElementNS("http://www.w3.org/2000/svg", "path"); path1.setAttribute("d", "M7.47 5.172a.75.75 0 0 1 1.06 0l4.596 4.596a.75.75 0 1 1-1.06 1.06L7.468 6.232a.75.75 0 0 1 0-1.06Z"); path1.setAttribute("fill", "currentColor"); const path2 = document.createElementNS("http://www.w3.org/2000/svg", "path"); path2.setAttribute("d", "M8.533 5.172a.75.75 0 0 1 0 1.06l-4.596 4.596a.75.75 0 1 1-1.061-1.06l4.596-4.596a.75.75 0 0 1 1.06 0Z"); path2.setAttribute("fill", "currentColor"); svgElement.appendChild(path1); svgElement.appendChild(path2); return svgElement; } renderDropdownListWithClickEvent_({ triggerElement, dataList, subTitleRole, listElementWithTemplate, defaultValue, itemHandler, shouldUpdateSelectedItem = false, }) { const dropdown = this.createDropdown_(); const itemTemplate = SPZCore.Dom.scopedQuerySelector( listElementWithTemplate, 'template' ); const clonedItemTemplate = itemTemplate.cloneNode(true); const fragment = self.document.createDocumentFragment(); dataList.forEach((data) => { const tempParentNode = self.document.createElement('div'); const clonedTemplate = self.document.importNode( clonedItemTemplate.content, true ); tempParentNode.appendChild(clonedTemplate); tempParentNode.firstElementChild.classList.add( 'market-select-item' ); this.renderMarketSelectTemplateNode_(tempParentNode, data); const selectItemElement = SPZCore.Dom.scopedQuerySelector( tempParentNode, `[role="${MARKET_SELECT_ITEM}"]` ); if (!selectItemElement) { return; } if (defaultValue === data.value) { if (shouldUpdateSelectedItem) { const clonedSelectItemElement = selectItemElement.cloneNode(true); triggerElement.replaceChild( clonedSelectItemElement, triggerElement.firstElementChild ); } selectItemElement.setAttribute(PROPERTY_SELECTED, ''); } selectItemElement.setAttribute(MARKET_SELECT_ITEM_ID, data.value); fragment.appendChild(tempParentNode.firstElementChild); }); let value = defaultValue; listElementWithTemplate.addEventListener( 'click', (e) => { if (this.isEditMode) { this.showToast_('编辑器下不支持切换国家'); SPZ.whenApiDefined(dropdown).then((apis) => { apis.close(); }); return; } let targetElement = e.target; while (targetElement) { if ( !targetElement || targetElement.getAttribute(MARKET_SELECT_ITEM_ID) ) { break; } targetElement = targetElement.parentNode; } if ( !targetElement || !targetElement.hasAttribute(MARKET_SELECT_ITEM_ID) ) { return; } const selectValue = targetElement.getAttribute(MARKET_SELECT_ITEM_ID); if (value === selectValue) { SPZ.whenApiDefined(dropdown).then((apis) => { apis.close(); }); return; } const selectedData = dataList.find((c) => c.value === selectValue); if (shouldUpdateSelectedItem) { const tempParentNode = self.document.createElement('div'); const clonedTemplate = self.document.importNode( clonedItemTemplate.content, true ); tempParentNode.appendChild(clonedTemplate); this.renderMarketSelectTemplateNode_(tempParentNode, selectedData); tempParentNode.firstElementChild.classList.add( 'market-select-item' ); triggerElement.replaceChild( tempParentNode.firstElementChild, triggerElement.firstElementChild ); } value = selectValue; itemHandler?.(selectedData); SPZ.whenApiDefined(dropdown).then((apis) => { apis.close(); }); }, false ); listElementWithTemplate.removeChild(itemTemplate); listElementWithTemplate.appendChild(fragment); listElementWithTemplate.classList.add('market-select-list'); dropdown.appendChild(listElementWithTemplate); if (subTitleRole) { this.renderSelectTitle_(dropdown, subTitleRole); } return dropdown; } createSelect_({ parent, defaultValue, dataList, listElementWithTemplate, itemHandler, titleRole, }) { const triggerElement = self.document.createElement('div'); triggerElement.classList.add('market-select'); const displayElement = self.document.createElement('div'); triggerElement.appendChild(displayElement); triggerElement.appendChild(this.createDropdownIcon_()); const dropdown = this.renderDropdownListWithClickEvent_({ triggerElement, dataList, listElementWithTemplate, defaultValue, itemHandler, shouldUpdateSelectedItem: true, }); this.bindDropdownOpenClickEvent_(triggerElement, dropdown); const dropdownContainer = self.document.createElement('div'); dropdownContainer.appendChild(triggerElement); dropdownContainer.appendChild(dropdown); dropdownContainer.classList.add('market-select-container'); this.renderSelectTitle_(dropdownContainer, titleRole); parent.appendChild(dropdownContainer); } getListElementWithTemplate_(role) { const template = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${role}"]` ); if (template) { const clonedTemplate = template.cloneNode(true); const tempParent = self.document.createElement("div"); tempParent.appendChild(clonedTemplate.content); const listElementWithTemplate = SPZCore.Dom.scopedQuerySelector( tempParent, `[role="${MARKET_SELECT_LIST}"]` ); return listElementWithTemplate; } return null; } renderSelectTitle_(parent, role) { if (!parent || !role) { return; } const template = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${role}"]` ); const content = self.document.importNode(template.content, true); parent.insertBefore(content, parent.firstElementChild); parent.firstElementChild.classList.add( role.includes('sub') ? 'market-pc-header-select-sub-title' : 'market-pc-header-select-title' ); } initSelect_(rootNode, options) { const parent = rootNode || this.element; if (this.useCountrySelect_) { this.createSelect_({ parent, titleRole: options?.shouldRenderSelectTitle ? MARKET_PC_HEADER_COUNTRY_SELECT_TITLE : undefined, defaultValue: this.getDefaultCountryValue_(), dataList: this.marketCountryList.map(this.mapCountryRenderData_), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_COUNTRY_SELECT ), itemHandler: this.handleCountrySelectChange_.bind(this), }); } if (this.useLanguageSelect_) { this.createSelect_({ parent, titleRole: options?.shouldRenderSelectTitle ? MARKET_PC_HEADER_LANGUAGE_SELECT_TITLE : undefined, defaultValue: this.getDefaultLanguageValue_(), dataList: this.marketLanguages.map(this.mapLanguageRenderData_), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_LANGUAGE_SELECT ), itemHandler: this.handleLanguageSelectChange_.bind(this), }); } } initPcHeaderTriggerElement() { const headerTriggerElementTemplate = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${MARKET_PC_HEADER_TRIGGER}"]` ); const headerTriggerElement = self.document.importNode( headerTriggerElementTemplate.content, true ); const parentDivElement = self.document.createElement('div'); parentDivElement.setAttribute('role', MARKET_PC_HEADER_TRIGGER); parentDivElement.appendChild(headerTriggerElement); this.element.removeChild(headerTriggerElementTemplate); return parentDivElement; } initPanelWithSelect_() { const triggerElement = this.initPcHeaderTriggerElement(); const dropdown = this.createDropdown_(); const panelElement = self.document.createElement('div'); panelElement.classList.add('market-panel'); this.initSelect_(panelElement, {shouldRenderSelectTitle: true}); dropdown.appendChild(panelElement); this.bindDropdownOpenClickEvent_(triggerElement, dropdown); this.element.appendChild(triggerElement); this.element.insertBefore(dropdown, triggerElement); } initSingleSelectDropdown_() { const triggerElement = this.initPcHeaderTriggerElement(); let dropdown; if (this.useCountrySelect_) { dropdown = this.renderDropdownListWithClickEvent_({ triggerElement, subTitleRole: MARKET_PC_HEADER_COUNTRY_SELECT_SUB_TITLE, dataList: this.marketCountryList.map(this.mapCountryRenderData_), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_COUNTRY_SELECT ), defaultValue: this.getDefaultCountryValue_(), itemHandler: this.handleCountrySelectChange_.bind(this), }); } else if (this.useLanguageSelect_) { dropdown = this.renderDropdownListWithClickEvent_({ triggerElement, subTitleRole: MARKET_PC_HEADER_LANGUAGE_SELECT_SUB_TITLE, dataList: this.marketLanguages.map(this.mapLanguageRenderData_), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_LANGUAGE_SELECT ), defaultValue: this.getDefaultLanguageValue_(), itemHandler: this.handleLanguageSelectChange_.bind(this), }); } if (dropdown) { this.bindDropdownOpenClickEvent_(triggerElement, dropdown); this.element.appendChild(triggerElement); this.element.appendChild(dropdown); } } initEntry_() { if (this.blockSectionPosition_ === SECTION_TYPE_HEADER) { if (this.isSingleSelectMode_) { this.initSingleSelectDropdown_(); } else if (this.useCountrySelect_ && this.useLanguageSelect_) { this.initPanelWithSelect_(); } } this.initSelect_(this.element); } async initData_() { const promises = []; if (this.useCountrySelect_ || this.useModal_) { promises.push(this.getCountryList_(), this.getIpMatchingMarket_()); } if (this.useLanguageSelect_) { promises.push(this.getMarketLanguages_(this.global.market.market_id)); } return Promise.all(promises).then((results) => { const ipMatchingMarket = results.find((result) => result.hasOwnProperty('matching_station') ); const marketCountryList = results.find((result) => result.hasOwnProperty('data') ); if (ipMatchingMarket && marketCountryList) { this.ipMatchingMarket = ipMatchingMarket?.matching_station?.find?.( (item) => item.type === 'multiple_market' ) || { img: marketCountryList.length ? marketCountryList?.[0]?.detail && marketCountryList[0].detail?.flag : '', }; } }); } initModal_() { if ( this.isEditMode || !this.ipMatchingMarket?.market_id || !this.useModal_ || this.hasCookie_(COOKIE_TIPS_NAME) || this.win[MARKET_MODAL_LOADED] ) { return; } this.win[MARKET_MODAL_LOADED] = true; const redirectParam = new URLSearchParams(this.win.location.search).get( URL_REDIRECT ); if (redirectParam) { this.initModalEntry_(MARKET_GATEWAY_REDIRECT_MODAL); } else if ( this.ipMatchingMarket.market_id !== this.global?.market?.market_id ) { this.initModalEntry_(MARKET_MODAL); } } async init_() { await this.initSettings_(); await this.initData_(); this.initEntry_(); this.initModal_(); } getDefaultCountryValue_() { return this.getCookie_(MARKET_COUNTRY_COOKIE) || this.marketCountryList[0]?.country_code; } mapCountryRenderData_(country) { return { flag: country?.detail?.flag || '', value: country?.country_code, currency: country?.currency, currencySymbol: country?.symbol?.val || '', url: country?.url, }; } handleCountrySelectChange_(selectedData) { this.setCookie_(MARKET_COUNTRY_COOKIE, selectedData.value); this.handleChangeURL_(selectedData.url); } getDefaultLanguageValue_() { return this.marketLanguages?.find?.( (lang) => lang.code === this.global?.market?.market_lang )?.name; } mapLanguageRenderData_(language) { return { value: language.name, url: language.url, }; } handleLanguageSelectChange_(selectedData) { this.handleChangeURL_(selectedData.url); } renderTemplateElement_(parent, role, value) { const elements = SPZCore.Dom.scopedQuerySelectorAll( parent, `[role="${role}"]` ); elements.forEach((element) => { if (element && value) { element.innerHTML = value; } }); } renderTemplateImg_(parent, role, options) { const flagElement = SPZCore.Dom.scopedQuerySelector( parent, `[role="${role}"]` ); if (flagElement && options?.src && options?.height && options?.width) { const spzImg = self.document.createElement('ljs-img'); spzImg.setAttribute('src', options.src); spzImg.setAttribute('layout', 'responsive'); spzImg.setAttribute('width', options.width); spzImg.setAttribute('height', options.height); spzImg.setAttribute( 'style', `width: ${options.width}px; height: ${options.height}px;` ); flagElement.appendChild(spzImg); } } handleChangeURL_(url) { if (!!url) { let {origin, pathname, search} = this.win.location; pathname = pathname.replace(SITE, url != '/' ? url : ''); this.win.location.href = `${origin}${pathname}${search}`; } else { this.win.location.reload(true); } } initModalEntry_(role) { const marketModalTemplate = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${role}"]` ); if (marketModalTemplate) { const tempParentNode = self.document.createElement('div'); const clonedTemplate = self.document.importNode( marketModalTemplate.content, true ); tempParentNode.appendChild(clonedTemplate); this.renderTemplateImg_(tempParentNode, MARKET_MODAL_FLAG, { src: this.ipMatchingMarket?.img, width: '80', height: '80', }); this.renderTemplateElement_( tempParentNode, MARKET_MODAL_COUNTRY_CODE, this.ipMatchingMarket?.name ); this.renderTemplateElement_( tempParentNode, MARKET_MODAL_CURRENCY_SYMBOL, this.ipMatchingMarket?.currency_with_symbol ); const lightbox = self.document.createElement('ljs-lightbox'); lightbox.setAttribute('layout', 'nodisplay'); lightbox.appendChild(tempParentNode.firstElementChild); self.document.body.appendChild(lightbox); SPZ.whenApiDefined(lightbox).then((apis) => { SPZCore.Dom.scopedQuerySelectorAll( lightbox, `[role="${MARKET_MODAL_CLOSE}"]` ).forEach((ele) => { ele.addEventListener('click', () => { this.setCookie_(COOKIE_TIPS_NAME, 1, COOKIE_TIPS_EXPIRES); apis.close(); }); }); const marketModalConfirmElement = SPZCore.Dom.scopedQuerySelector( lightbox, `[role="${MARKET_MODAL_CONFIRM}"]` ); if (marketModalConfirmElement && this.ipMatchingMarket?.url) { marketModalConfirmElement.addEventListener('click', () => { this.setCookie_(COOKIE_TIPS_NAME, 1, COOKIE_TIPS_EXPIRES); this.setCookie_(MARKET_COUNTRY_COOKIE, this.ipMatchingMarket?.name); this.handleChangeURL_(this.ipMatchingMarket?.url); }); } const marketModalReselectElement = SPZCore.Dom.scopedQuerySelector( lightbox, `[role="${MARKET_MODAL_RESELECT}"]` ); if (marketModalReselectElement) { marketModalReselectElement.addEventListener('click', () => { this.setCookie_(COOKIE_TIPS_NAME, 1, COOKIE_TIPS_EXPIRES); const marketReselectTemplate = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${MARKET_RESELECT_MODAL}"]` ); if (marketReselectTemplate && lightbox.firstElementChild) { const clonedTemplate = self.document.importNode( marketReselectTemplate.content, true ); const selectParent = SPZCore.Dom.scopedQuerySelector( clonedTemplate, `[role="${MARKET_MODAL_RESELECT_COUNTRY_SELECT}"]` ); if (selectParent) { this.createSelect_({ parent: selectParent, defaultValue: this.getDefaultCountryValue_(), dataList: this.marketCountryList.map( this.mapCountryRenderData_ ), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_COUNTRY_SELECT ), itemHandler: this.handleCountrySelectChange_.bind(this), }); } lightbox.replaceChild(clonedTemplate, lightbox.firstElementChild); SPZCore.Dom.scopedQuerySelectorAll( lightbox, `[role="${MARKET_MODAL_CLOSE}"]` ).forEach((ele) => { ele.addEventListener('click', () => { this.setCookie_(COOKIE_TIPS_NAME, 1, COOKIE_TIPS_EXPIRES); apis.close(); }); }); } }); } apis.open(); }); } } async getMarketThemeSettings_() { return this.xhr_.fetchJson(MARKET_THEME_SETTINGS).then((res) => { this.useCountrySelect_ = !!res.country_selector_enabled; this.useLanguageSelect_ = !!res.language_selector_enabled && this.global?.market?.market_id; this.useModal_ = !!res.redirect_pop_enabled; return res; }); } async getCountryList_() { return this.xhr_.fetchJson(MARKET_COUNTRIES).then((res) => { this.marketCountryList = res.data.length ? res.data : []; return res; }); } async getIpMatchingMarket_() { return this.xhr_.fetchJson(IP_MATCHING_MARKET, { method: 'POST', body: { stations: [], }, }); } async getMarketLanguages_(marketId) { return this.xhr_ .fetchJson(MARKET_LANGUAGES.replace(/:id/gim, marketId)) .then((res) => { this.marketLanguages = res?.languages?.length ? res.languages : []; return res; }); } hasCookie_(name) { const m = self.document.cookie .split(';') .filter((pair) => pair.trim().startsWith(name + '=')); return !!(m && m[0]); } getCookie_(name) { const m = self.document.cookie .split(';') .filter((pair) => pair.trim().startsWith(name + '=')); return m && m[0] ? m[0].split('=')[1] : null; } setCookie_(name, value, expires) { const expiresDate = new Date(Date.now() + expires).toGMTString(); self.document.cookie = `${name}=${encodeURIComponent( value )};expires=${expiresDate};path=/`; } } SPZ.defineElement('spz-custom-market', SpzCustomMarket);

const SITE = (window.C_SETTINGS || window[atob('U0hPUExBWlpB')])?.routes?.root || ''; const MARKET_THEME_SETTINGS = `${SITE}/api/markets/theme_setting`; const MARKET_COUNTRIES = `${SITE}/api/markets/countries`; const IP_MATCHING_MARKET = `${SITE}/api/front/station`; const MARKET_LANGUAGES = `${SITE}/api/markets/:id/active_languages`; const URL_REDIRECT = '_market_redirected'; const COOKIE_TIPS_NAME = 'market_no_tips'; const COOKIE_TIPS_EXPIRES = 1000 * 60 * 60 * 24 * 14; const MARKET_COUNTRY_COOKIE = '_shoplazza_market_country'; const MARKET_MODAL_LOADED = '__market_modal_loaded__'; const PROPERTY_SELECTED = 'selected'; const MARKET_PC_HEADER_TRIGGER = 'market-pc-header-trigger'; const MARKET_PC_HEADER_COUNTRY_SELECT_TITLE = 'market-pc-header-country-select-title'; const MARKET_PC_HEADER_LANGUAGE_SELECT_TITLE = 'market-pc-header-language-select-title'; const MARKET_PC_HEADER_LANGUAGE_SELECT_SUB_TITLE = 'market-pc-header-language-select-sub-title'; const MARKET_PC_HEADER_COUNTRY_SELECT_SUB_TITLE = 'market-pc-header-country-select-sub-title'; const MARKET_FLAG = 'market-flag'; const MARKET_SELECT_VALUE = 'market-select-value'; const MARKET_CURRENCY = 'market-currency'; const MARKET_CURRENCY_SYMBOL = 'market-currency-symbol'; const MARKET_SELECT_ITEM = 'market-select-item'; const MARKET_SELECT_ITEM_ID = 'market-select-item-id'; const MARKET_SELECT_LIST = 'market-select-list'; const MARKET_LANGUAGE_SELECT = 'market-language-select'; const MARKET_COUNTRY_SELECT = 'market-country-select'; const MARKET_MODAL = 'market-modal'; const MARKET_GATEWAY_REDIRECT_MODAL = 'market-gateway-redirect-modal'; const MARKET_RESELECT_MODAL = 'market-reselect-modal'; const MARKET_MODAL_FLAG = 'market-modal-flag'; const MARKET_MODAL_COUNTRY_CODE = 'market-modal-country-code'; const MARKET_MODAL_CURRENCY_SYMBOL = 'market-modal-currency-symbol'; const MARKET_MODAL_CLOSE = 'market-modal-close'; const MARKET_MODAL_CONFIRM = 'market-modal-confirm'; const MARKET_MODAL_RESELECT = 'market-modal-reselect'; const MARKET_MODAL_RESELECT_COUNTRY_SELECT = 'market-modal-reselect-country-select'; const DATA_SECTION_TYPE = 'data-section-type'; const SECTION_TYPE_HEADER = 'header'; const SECTION_TYPE_FOOTER = 'footer'; class SpzCustomMarket extends SPZ.BaseElement { constructor(element) { super(element); this.global = null; this.useCountrySelect_ = false; this.useLanguageSelect_ = false; this.useModal_ = false; this.isSingleSelectMode_ = false; this.blockSectionPosition_ = ''; this.isEditMode = false; this.ipMatchingMarket = null; this.marketCountryList = []; this.marketLanguages = []; this.toast = null; } static deferredMount() { return false; } isLayoutSupported(layout) { return layout == SPZCore.Layout.LOGIC; } buildCallback() { console.debug('Geolocation'); this.xhr_ = SPZServices.xhrFor(this.win); const platform = SPZServices.platformFor(this.win); this.isIOS_ = platform.isIos(); this.action_ = SPZServices.actionServiceForDoc(this.element); this.global = this.win.C_SETTINGS || this.win[atob('U0hPUExBWlpB')]; this.isEditMode = new URLSearchParams(this.win.location.search).get('preview_theme_id') && new URLSearchParams(this.win.location.search).get('oseid'); this.init_(); } showToast_(content) { if (!this.toast) { this.toast = self.document.createElement('ljs-toast'); this.toast.setAttribute('layout', 'nodisplay'); this.toast.setAttribute('hidden', ''); this.toast.setAttribute('duration', '2000'); this.element.appendChild(this.toast); } SPZ.whenApiDefined(this.toast).then((apis) => { apis.showToast(content); }); } triggerEvent_(name, data) { const event = SPZUtils.Event.create(this.win, `${TAG}.${name}`, data); this.action_.trigger(this.element, name, event); } findBlockSectionPosition() { let current = this.element; while (current) { const dataSectionType = current.getAttribute(DATA_SECTION_TYPE); if ( dataSectionType === SECTION_TYPE_HEADER || dataSectionType === SECTION_TYPE_FOOTER ) { return dataSectionType; } current = current.parentElement; } return ''; } async initSettings_() { await this.getMarketThemeSettings_(); if (this.useCountrySelect_) { this.element.setAttribute('use-country-select', true); } if (this.useLanguageSelect_) { this.element.setAttribute('use-language-select', true); } if (this.useModal_) { this.element.setAttribute('use-modal', true); } if ( (this.useCountrySelect_ && !this.useLanguageSelect_) || (!this.useCountrySelect_ && this.useLanguageSelect_) ) { this.isSingleSelectMode_ = true; } this.blockSectionPosition_ = this.findBlockSectionPosition(); this.isPCLayout_ = this.win.matchMedia('(min-width: 960px)').matches; } renderMarketSelectTemplateNode_(clonedTemplate, data) { this.renderTemplateImg_(clonedTemplate, MARKET_FLAG, { src: data?.flag, width: '24', height: '24', }); this.renderTemplateElement_( clonedTemplate, MARKET_SELECT_VALUE, data.value ); this.renderTemplateElement_( clonedTemplate, MARKET_CURRENCY, data?.currency ); this.renderTemplateElement_( clonedTemplate, MARKET_CURRENCY_SYMBOL, data?.currencySymbol ); } bindDropdownOpenClickEvent_(triggerElement, dropdown) { if (!triggerElement) return; const triggerOpen = () => { SPZ.whenApiDefined(dropdown).then((apis) => { if (!dropdown.hasAttribute('open')) { apis.open(triggerElement); } }); }; if (this.isIOS_) { triggerElement.addEventListener('touchstart', triggerOpen); } else { triggerElement.addEventListener('click', triggerOpen); } } createDropdown_() { const dropdown = self.document.createElement('ljs-dropdown'); dropdown.setAttribute('layout', 'nodisplay'); if (this.blockSectionPosition_ === 'header') { dropdown.setAttribute('overlay-style', 'top: 4px;'); dropdown.setAttribute('placement', 'bottomRight'); } else if (this.blockSectionPosition_ === 'footer') { dropdown.setAttribute('overlay-style', 'top: -4px;'); dropdown.setAttribute('placement', 'top'); } return dropdown; } createDropdownIcon_() { const svgElement = document.createElementNS("http://www.w3.org/2000/svg", "svg"); svgElement.setAttribute("class", "market-rotate-180"); svgElement.setAttribute("width", "16"); svgElement.setAttribute("height", "16"); const path1 = document.createElementNS("http://www.w3.org/2000/svg", "path"); path1.setAttribute("d", "M7.47 5.172a.75.75 0 0 1 1.06 0l4.596 4.596a.75.75 0 1 1-1.06 1.06L7.468 6.232a.75.75 0 0 1 0-1.06Z"); path1.setAttribute("fill", "currentColor"); const path2 = document.createElementNS("http://www.w3.org/2000/svg", "path"); path2.setAttribute("d", "M8.533 5.172a.75.75 0 0 1 0 1.06l-4.596 4.596a.75.75 0 1 1-1.061-1.06l4.596-4.596a.75.75 0 0 1 1.06 0Z"); path2.setAttribute("fill", "currentColor"); svgElement.appendChild(path1); svgElement.appendChild(path2); return svgElement; } renderDropdownListWithClickEvent_({ triggerElement, dataList, subTitleRole, listElementWithTemplate, defaultValue, itemHandler, shouldUpdateSelectedItem = false, }) { const dropdown = this.createDropdown_(); const itemTemplate = SPZCore.Dom.scopedQuerySelector( listElementWithTemplate, 'template' ); const clonedItemTemplate = itemTemplate.cloneNode(true); const fragment = self.document.createDocumentFragment(); dataList.forEach((data) => { const tempParentNode = self.document.createElement('div'); const clonedTemplate = self.document.importNode( clonedItemTemplate.content, true ); tempParentNode.appendChild(clonedTemplate); tempParentNode.firstElementChild.classList.add( 'market-select-item' ); this.renderMarketSelectTemplateNode_(tempParentNode, data); const selectItemElement = SPZCore.Dom.scopedQuerySelector( tempParentNode, `[role="${MARKET_SELECT_ITEM}"]` ); if (!selectItemElement) { return; } if (defaultValue === data.value) { if (shouldUpdateSelectedItem) { const clonedSelectItemElement = selectItemElement.cloneNode(true); triggerElement.replaceChild( clonedSelectItemElement, triggerElement.firstElementChild ); } selectItemElement.setAttribute(PROPERTY_SELECTED, ''); } selectItemElement.setAttribute(MARKET_SELECT_ITEM_ID, data.value); fragment.appendChild(tempParentNode.firstElementChild); }); let value = defaultValue; listElementWithTemplate.addEventListener( 'click', (e) => { if (this.isEditMode) { this.showToast_('编辑器下不支持切换国家'); SPZ.whenApiDefined(dropdown).then((apis) => { apis.close(); }); return; } let targetElement = e.target; while (targetElement) { if ( !targetElement || targetElement.getAttribute(MARKET_SELECT_ITEM_ID) ) { break; } targetElement = targetElement.parentNode; } if ( !targetElement || !targetElement.hasAttribute(MARKET_SELECT_ITEM_ID) ) { return; } const selectValue = targetElement.getAttribute(MARKET_SELECT_ITEM_ID); if (value === selectValue) { SPZ.whenApiDefined(dropdown).then((apis) => { apis.close(); }); return; } const selectedData = dataList.find((c) => c.value === selectValue); if (shouldUpdateSelectedItem) { const tempParentNode = self.document.createElement('div'); const clonedTemplate = self.document.importNode( clonedItemTemplate.content, true ); tempParentNode.appendChild(clonedTemplate); this.renderMarketSelectTemplateNode_(tempParentNode, selectedData); tempParentNode.firstElementChild.classList.add( 'market-select-item' ); triggerElement.replaceChild( tempParentNode.firstElementChild, triggerElement.firstElementChild ); } value = selectValue; itemHandler?.(selectedData); SPZ.whenApiDefined(dropdown).then((apis) => { apis.close(); }); }, false ); listElementWithTemplate.removeChild(itemTemplate); listElementWithTemplate.appendChild(fragment); listElementWithTemplate.classList.add('market-select-list'); dropdown.appendChild(listElementWithTemplate); if (subTitleRole) { this.renderSelectTitle_(dropdown, subTitleRole); } return dropdown; } createSelect_({ parent, defaultValue, dataList, listElementWithTemplate, itemHandler, titleRole, }) { const triggerElement = self.document.createElement('div'); triggerElement.classList.add('market-select'); const displayElement = self.document.createElement('div'); triggerElement.appendChild(displayElement); triggerElement.appendChild(this.createDropdownIcon_()); const dropdown = this.renderDropdownListWithClickEvent_({ triggerElement, dataList, listElementWithTemplate, defaultValue, itemHandler, shouldUpdateSelectedItem: true, }); this.bindDropdownOpenClickEvent_(triggerElement, dropdown); const dropdownContainer = self.document.createElement('div'); dropdownContainer.appendChild(triggerElement); dropdownContainer.appendChild(dropdown); dropdownContainer.classList.add('market-select-container'); this.renderSelectTitle_(dropdownContainer, titleRole); parent.appendChild(dropdownContainer); } getListElementWithTemplate_(role) { const template = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${role}"]` ); if (template) { const clonedTemplate = template.cloneNode(true); const tempParent = self.document.createElement("div"); tempParent.appendChild(clonedTemplate.content); const listElementWithTemplate = SPZCore.Dom.scopedQuerySelector( tempParent, `[role="${MARKET_SELECT_LIST}"]` ); return listElementWithTemplate; } return null; } renderSelectTitle_(parent, role) { if (!parent || !role) { return; } const template = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${role}"]` ); const content = self.document.importNode(template.content, true); parent.insertBefore(content, parent.firstElementChild); parent.firstElementChild.classList.add( role.includes('sub') ? 'market-pc-header-select-sub-title' : 'market-pc-header-select-title' ); } initSelect_(rootNode, options) { const parent = rootNode || this.element; if (this.useCountrySelect_) { this.createSelect_({ parent, titleRole: options?.shouldRenderSelectTitle ? MARKET_PC_HEADER_COUNTRY_SELECT_TITLE : undefined, defaultValue: this.getDefaultCountryValue_(), dataList: this.marketCountryList.map(this.mapCountryRenderData_), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_COUNTRY_SELECT ), itemHandler: this.handleCountrySelectChange_.bind(this), }); } if (this.useLanguageSelect_) { this.createSelect_({ parent, titleRole: options?.shouldRenderSelectTitle ? MARKET_PC_HEADER_LANGUAGE_SELECT_TITLE : undefined, defaultValue: this.getDefaultLanguageValue_(), dataList: this.marketLanguages.map(this.mapLanguageRenderData_), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_LANGUAGE_SELECT ), itemHandler: this.handleLanguageSelectChange_.bind(this), }); } } initPcHeaderTriggerElement() { const headerTriggerElementTemplate = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${MARKET_PC_HEADER_TRIGGER}"]` ); const headerTriggerElement = self.document.importNode( headerTriggerElementTemplate.content, true ); const parentDivElement = self.document.createElement('div'); parentDivElement.setAttribute('role', MARKET_PC_HEADER_TRIGGER); parentDivElement.appendChild(headerTriggerElement); this.element.removeChild(headerTriggerElementTemplate); return parentDivElement; } initPanelWithSelect_() { const triggerElement = this.initPcHeaderTriggerElement(); const dropdown = this.createDropdown_(); const panelElement = self.document.createElement('div'); panelElement.classList.add('market-panel'); this.initSelect_(panelElement, {shouldRenderSelectTitle: true}); dropdown.appendChild(panelElement); this.bindDropdownOpenClickEvent_(triggerElement, dropdown); this.element.appendChild(triggerElement); this.element.insertBefore(dropdown, triggerElement); } initSingleSelectDropdown_() { const triggerElement = this.initPcHeaderTriggerElement(); let dropdown; if (this.useCountrySelect_) { dropdown = this.renderDropdownListWithClickEvent_({ triggerElement, subTitleRole: MARKET_PC_HEADER_COUNTRY_SELECT_SUB_TITLE, dataList: this.marketCountryList.map(this.mapCountryRenderData_), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_COUNTRY_SELECT ), defaultValue: this.getDefaultCountryValue_(), itemHandler: this.handleCountrySelectChange_.bind(this), }); } else if (this.useLanguageSelect_) { dropdown = this.renderDropdownListWithClickEvent_({ triggerElement, subTitleRole: MARKET_PC_HEADER_LANGUAGE_SELECT_SUB_TITLE, dataList: this.marketLanguages.map(this.mapLanguageRenderData_), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_LANGUAGE_SELECT ), defaultValue: this.getDefaultLanguageValue_(), itemHandler: this.handleLanguageSelectChange_.bind(this), }); } if (dropdown) { this.bindDropdownOpenClickEvent_(triggerElement, dropdown); this.element.appendChild(triggerElement); this.element.appendChild(dropdown); } } initEntry_() { if (this.blockSectionPosition_ === SECTION_TYPE_HEADER) { if (this.isSingleSelectMode_) { this.initSingleSelectDropdown_(); } else if (this.useCountrySelect_ && this.useLanguageSelect_) { this.initPanelWithSelect_(); } } this.initSelect_(this.element); } async initData_() { const promises = []; if (this.useCountrySelect_ || this.useModal_) { promises.push(this.getCountryList_(), this.getIpMatchingMarket_()); } if (this.useLanguageSelect_) { promises.push(this.getMarketLanguages_(this.global.market.market_id)); } return Promise.all(promises).then((results) => { const ipMatchingMarket = results.find((result) => result.hasOwnProperty('matching_station') ); const marketCountryList = results.find((result) => result.hasOwnProperty('data') ); if (ipMatchingMarket && marketCountryList) { this.ipMatchingMarket = ipMatchingMarket?.matching_station?.find?.( (item) => item.type === 'multiple_market' ) || { img: marketCountryList.length ? marketCountryList?.[0]?.detail && marketCountryList[0].detail?.flag : '', }; } }); } initModal_() { if ( this.isEditMode || !this.ipMatchingMarket?.market_id || !this.useModal_ || this.hasCookie_(COOKIE_TIPS_NAME) || this.win[MARKET_MODAL_LOADED] ) { return; } this.win[MARKET_MODAL_LOADED] = true; const redirectParam = new URLSearchParams(this.win.location.search).get( URL_REDIRECT ); if (redirectParam) { this.initModalEntry_(MARKET_GATEWAY_REDIRECT_MODAL); } else if ( this.ipMatchingMarket.market_id !== this.global?.market?.market_id ) { this.initModalEntry_(MARKET_MODAL); } } async init_() { await this.initSettings_(); await this.initData_(); this.initEntry_(); this.initModal_(); } getDefaultCountryValue_() { return this.getCookie_(MARKET_COUNTRY_COOKIE) || this.marketCountryList[0]?.country_code; } mapCountryRenderData_(country) { return { flag: country?.detail?.flag || '', value: country?.country_code, currency: country?.currency, currencySymbol: country?.symbol?.val || '', url: country?.url, }; } handleCountrySelectChange_(selectedData) { this.setCookie_(MARKET_COUNTRY_COOKIE, selectedData.value); this.handleChangeURL_(selectedData.url); } getDefaultLanguageValue_() { return this.marketLanguages?.find?.( (lang) => lang.code === this.global?.market?.market_lang )?.name; } mapLanguageRenderData_(language) { return { value: language.name, url: language.url, }; } handleLanguageSelectChange_(selectedData) { this.handleChangeURL_(selectedData.url); } renderTemplateElement_(parent, role, value) { const elements = SPZCore.Dom.scopedQuerySelectorAll( parent, `[role="${role}"]` ); elements.forEach((element) => { if (element && value) { element.innerHTML = value; } }); } renderTemplateImg_(parent, role, options) { const flagElement = SPZCore.Dom.scopedQuerySelector( parent, `[role="${role}"]` ); if (flagElement && options?.src && options?.height && options?.width) { const spzImg = self.document.createElement('ljs-img'); spzImg.setAttribute('src', options.src); spzImg.setAttribute('layout', 'responsive'); spzImg.setAttribute('width', options.width); spzImg.setAttribute('height', options.height); spzImg.setAttribute( 'style', `width: ${options.width}px; height: ${options.height}px;` ); flagElement.appendChild(spzImg); } } handleChangeURL_(url) { if (!!url) { let {origin, pathname, search} = this.win.location; pathname = pathname.replace(SITE, url != '/' ? url : ''); this.win.location.href = `${origin}${pathname}${search}`; } else { this.win.location.reload(true); } } initModalEntry_(role) { const marketModalTemplate = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${role}"]` ); if (marketModalTemplate) { const tempParentNode = self.document.createElement('div'); const clonedTemplate = self.document.importNode( marketModalTemplate.content, true ); tempParentNode.appendChild(clonedTemplate); this.renderTemplateImg_(tempParentNode, MARKET_MODAL_FLAG, { src: this.ipMatchingMarket?.img, width: '80', height: '80', }); this.renderTemplateElement_( tempParentNode, MARKET_MODAL_COUNTRY_CODE, this.ipMatchingMarket?.name ); this.renderTemplateElement_( tempParentNode, MARKET_MODAL_CURRENCY_SYMBOL, this.ipMatchingMarket?.currency_with_symbol ); const lightbox = self.document.createElement('ljs-lightbox'); lightbox.setAttribute('layout', 'nodisplay'); lightbox.appendChild(tempParentNode.firstElementChild); self.document.body.appendChild(lightbox); SPZ.whenApiDefined(lightbox).then((apis) => { SPZCore.Dom.scopedQuerySelectorAll( lightbox, `[role="${MARKET_MODAL_CLOSE}"]` ).forEach((ele) => { ele.addEventListener('click', () => { this.setCookie_(COOKIE_TIPS_NAME, 1, COOKIE_TIPS_EXPIRES); apis.close(); }); }); const marketModalConfirmElement = SPZCore.Dom.scopedQuerySelector( lightbox, `[role="${MARKET_MODAL_CONFIRM}"]` ); if (marketModalConfirmElement && this.ipMatchingMarket?.url) { marketModalConfirmElement.addEventListener('click', () => { this.setCookie_(COOKIE_TIPS_NAME, 1, COOKIE_TIPS_EXPIRES); this.setCookie_(MARKET_COUNTRY_COOKIE, this.ipMatchingMarket?.name); this.handleChangeURL_(this.ipMatchingMarket?.url); }); } const marketModalReselectElement = SPZCore.Dom.scopedQuerySelector( lightbox, `[role="${MARKET_MODAL_RESELECT}"]` ); if (marketModalReselectElement) { marketModalReselectElement.addEventListener('click', () => { this.setCookie_(COOKIE_TIPS_NAME, 1, COOKIE_TIPS_EXPIRES); const marketReselectTemplate = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${MARKET_RESELECT_MODAL}"]` ); if (marketReselectTemplate && lightbox.firstElementChild) { const clonedTemplate = self.document.importNode( marketReselectTemplate.content, true ); const selectParent = SPZCore.Dom.scopedQuerySelector( clonedTemplate, `[role="${MARKET_MODAL_RESELECT_COUNTRY_SELECT}"]` ); if (selectParent) { this.createSelect_({ parent: selectParent, defaultValue: this.getDefaultCountryValue_(), dataList: this.marketCountryList.map( this.mapCountryRenderData_ ), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_COUNTRY_SELECT ), itemHandler: this.handleCountrySelectChange_.bind(this), }); } lightbox.replaceChild(clonedTemplate, lightbox.firstElementChild); SPZCore.Dom.scopedQuerySelectorAll( lightbox, `[role="${MARKET_MODAL_CLOSE}"]` ).forEach((ele) => { ele.addEventListener('click', () => { this.setCookie_(COOKIE_TIPS_NAME, 1, COOKIE_TIPS_EXPIRES); apis.close(); }); }); } }); } apis.open(); }); } } async getMarketThemeSettings_() { return this.xhr_.fetchJson(MARKET_THEME_SETTINGS).then((res) => { this.useCountrySelect_ = !!res.country_selector_enabled; this.useLanguageSelect_ = !!res.language_selector_enabled && this.global?.market?.market_id; this.useModal_ = !!res.redirect_pop_enabled; return res; }); } async getCountryList_() { return this.xhr_.fetchJson(MARKET_COUNTRIES).then((res) => { this.marketCountryList = res.data.length ? res.data : []; return res; }); } async getIpMatchingMarket_() { return this.xhr_.fetchJson(IP_MATCHING_MARKET, { method: 'POST', body: { stations: [], }, }); } async getMarketLanguages_(marketId) { return this.xhr_ .fetchJson(MARKET_LANGUAGES.replace(/:id/gim, marketId)) .then((res) => { this.marketLanguages = res?.languages?.length ? res.languages : []; return res; }); } hasCookie_(name) { const m = self.document.cookie .split(';') .filter((pair) => pair.trim().startsWith(name + '=')); return !!(m && m[0]); } getCookie_(name) { const m = self.document.cookie .split(';') .filter((pair) => pair.trim().startsWith(name + '=')); return m && m[0] ? m[0].split('=')[1] : null; } setCookie_(name, value, expires) { const expiresDate = new Date(Date.now() + expires).toGMTString(); self.document.cookie = `${name}=${encodeURIComponent( value )};expires=${expiresDate};path=/`; } } SPZ.defineElement('spz-custom-market', SpzCustomMarket);

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const SITE = (window.C_SETTINGS || window[atob('U0hPUExBWlpB')])?.routes?.root || ''; const MARKET_THEME_SETTINGS = `${SITE}/api/markets/theme_setting`; const MARKET_COUNTRIES = `${SITE}/api/markets/countries`; const IP_MATCHING_MARKET = `${SITE}/api/front/station`; const MARKET_LANGUAGES = `${SITE}/api/markets/:id/active_languages`; const URL_REDIRECT = '_market_redirected'; const COOKIE_TIPS_NAME = 'market_no_tips'; const COOKIE_TIPS_EXPIRES = 1000 * 60 * 60 * 24 * 14; const MARKET_COUNTRY_COOKIE = '_shoplazza_market_country'; const MARKET_MODAL_LOADED = '__market_modal_loaded__'; const PROPERTY_SELECTED = 'selected'; const MARKET_PC_HEADER_TRIGGER = 'market-pc-header-trigger'; const MARKET_PC_HEADER_COUNTRY_SELECT_TITLE = 'market-pc-header-country-select-title'; const MARKET_PC_HEADER_LANGUAGE_SELECT_TITLE = 'market-pc-header-language-select-title'; const MARKET_PC_HEADER_LANGUAGE_SELECT_SUB_TITLE = 'market-pc-header-language-select-sub-title'; const MARKET_PC_HEADER_COUNTRY_SELECT_SUB_TITLE = 'market-pc-header-country-select-sub-title'; const MARKET_FLAG = 'market-flag'; const MARKET_SELECT_VALUE = 'market-select-value'; const MARKET_CURRENCY = 'market-currency'; const MARKET_CURRENCY_SYMBOL = 'market-currency-symbol'; const MARKET_SELECT_ITEM = 'market-select-item'; const MARKET_SELECT_ITEM_ID = 'market-select-item-id'; const MARKET_SELECT_LIST = 'market-select-list'; const MARKET_LANGUAGE_SELECT = 'market-language-select'; const MARKET_COUNTRY_SELECT = 'market-country-select'; const MARKET_MODAL = 'market-modal'; const MARKET_GATEWAY_REDIRECT_MODAL = 'market-gateway-redirect-modal'; const MARKET_RESELECT_MODAL = 'market-reselect-modal'; const MARKET_MODAL_FLAG = 'market-modal-flag'; const MARKET_MODAL_COUNTRY_CODE = 'market-modal-country-code'; const MARKET_MODAL_CURRENCY_SYMBOL = 'market-modal-currency-symbol'; const MARKET_MODAL_CLOSE = 'market-modal-close'; const MARKET_MODAL_CONFIRM = 'market-modal-confirm'; const MARKET_MODAL_RESELECT = 'market-modal-reselect'; const MARKET_MODAL_RESELECT_COUNTRY_SELECT = 'market-modal-reselect-country-select'; const DATA_SECTION_TYPE = 'data-section-type'; const SECTION_TYPE_HEADER = 'header'; const SECTION_TYPE_FOOTER = 'footer'; class SpzCustomMarket extends SPZ.BaseElement { constructor(element) { super(element); this.global = null; this.useCountrySelect_ = false; this.useLanguageSelect_ = false; this.useModal_ = false; this.isSingleSelectMode_ = false; this.blockSectionPosition_ = ''; this.isEditMode = false; this.ipMatchingMarket = null; this.marketCountryList = []; this.marketLanguages = []; this.toast = null; } static deferredMount() { return false; } isLayoutSupported(layout) { return layout == SPZCore.Layout.LOGIC; } buildCallback() { console.debug('Geolocation'); this.xhr_ = SPZServices.xhrFor(this.win); const platform = SPZServices.platformFor(this.win); this.isIOS_ = platform.isIos(); this.action_ = SPZServices.actionServiceForDoc(this.element); this.global = this.win.C_SETTINGS || this.win[atob('U0hPUExBWlpB')]; this.isEditMode = new URLSearchParams(this.win.location.search).get('preview_theme_id') && new URLSearchParams(this.win.location.search).get('oseid'); this.init_(); } showToast_(content) { if (!this.toast) { this.toast = self.document.createElement('ljs-toast'); this.toast.setAttribute('layout', 'nodisplay'); this.toast.setAttribute('hidden', ''); this.toast.setAttribute('duration', '2000'); this.element.appendChild(this.toast); } SPZ.whenApiDefined(this.toast).then((apis) => { apis.showToast(content); }); } triggerEvent_(name, data) { const event = SPZUtils.Event.create(this.win, `${TAG}.${name}`, data); this.action_.trigger(this.element, name, event); } findBlockSectionPosition() { let current = this.element; while (current) { const dataSectionType = current.getAttribute(DATA_SECTION_TYPE); if ( dataSectionType === SECTION_TYPE_HEADER || dataSectionType === SECTION_TYPE_FOOTER ) { return dataSectionType; } current = current.parentElement; } return ''; } async initSettings_() { await this.getMarketThemeSettings_(); if (this.useCountrySelect_) { this.element.setAttribute('use-country-select', true); } if (this.useLanguageSelect_) { this.element.setAttribute('use-language-select', true); } if (this.useModal_) { this.element.setAttribute('use-modal', true); } if ( (this.useCountrySelect_ && !this.useLanguageSelect_) || (!this.useCountrySelect_ && this.useLanguageSelect_) ) { this.isSingleSelectMode_ = true; } this.blockSectionPosition_ = this.findBlockSectionPosition(); this.isPCLayout_ = this.win.matchMedia('(min-width: 960px)').matches; } renderMarketSelectTemplateNode_(clonedTemplate, data) { this.renderTemplateImg_(clonedTemplate, MARKET_FLAG, { src: data?.flag, width: '24', height: '24', }); this.renderTemplateElement_( clonedTemplate, MARKET_SELECT_VALUE, data.value ); this.renderTemplateElement_( clonedTemplate, MARKET_CURRENCY, data?.currency ); this.renderTemplateElement_( clonedTemplate, MARKET_CURRENCY_SYMBOL, data?.currencySymbol ); } bindDropdownOpenClickEvent_(triggerElement, dropdown) { if (!triggerElement) return; const triggerOpen = () => { SPZ.whenApiDefined(dropdown).then((apis) => { if (!dropdown.hasAttribute('open')) { apis.open(triggerElement); } }); }; if (this.isIOS_) { triggerElement.addEventListener('touchstart', triggerOpen); } else { triggerElement.addEventListener('click', triggerOpen); } } createDropdown_() { const dropdown = self.document.createElement('ljs-dropdown'); dropdown.setAttribute('layout', 'nodisplay'); if (this.blockSectionPosition_ === 'header') { dropdown.setAttribute('overlay-style', 'top: 4px;'); dropdown.setAttribute('placement', 'bottomRight'); } else if (this.blockSectionPosition_ === 'footer') { dropdown.setAttribute('overlay-style', 'top: -4px;'); dropdown.setAttribute('placement', 'top'); } return dropdown; } createDropdownIcon_() { const svgElement = document.createElementNS("http://www.w3.org/2000/svg", "svg"); svgElement.setAttribute("class", "market-rotate-180"); svgElement.setAttribute("width", "16"); svgElement.setAttribute("height", "16"); const path1 = document.createElementNS("http://www.w3.org/2000/svg", "path"); path1.setAttribute("d", "M7.47 5.172a.75.75 0 0 1 1.06 0l4.596 4.596a.75.75 0 1 1-1.06 1.06L7.468 6.232a.75.75 0 0 1 0-1.06Z"); path1.setAttribute("fill", "currentColor"); const path2 = document.createElementNS("http://www.w3.org/2000/svg", "path"); path2.setAttribute("d", "M8.533 5.172a.75.75 0 0 1 0 1.06l-4.596 4.596a.75.75 0 1 1-1.061-1.06l4.596-4.596a.75.75 0 0 1 1.06 0Z"); path2.setAttribute("fill", "currentColor"); svgElement.appendChild(path1); svgElement.appendChild(path2); return svgElement; } renderDropdownListWithClickEvent_({ triggerElement, dataList, subTitleRole, listElementWithTemplate, defaultValue, itemHandler, shouldUpdateSelectedItem = false, }) { const dropdown = this.createDropdown_(); const itemTemplate = SPZCore.Dom.scopedQuerySelector( listElementWithTemplate, 'template' ); const clonedItemTemplate = itemTemplate.cloneNode(true); const fragment = self.document.createDocumentFragment(); dataList.forEach((data) => { const tempParentNode = self.document.createElement('div'); const clonedTemplate = self.document.importNode( clonedItemTemplate.content, true ); tempParentNode.appendChild(clonedTemplate); tempParentNode.firstElementChild.classList.add( 'market-select-item' ); this.renderMarketSelectTemplateNode_(tempParentNode, data); const selectItemElement = SPZCore.Dom.scopedQuerySelector( tempParentNode, `[role="${MARKET_SELECT_ITEM}"]` ); if (!selectItemElement) { return; } if (defaultValue === data.value) { if (shouldUpdateSelectedItem) { const clonedSelectItemElement = selectItemElement.cloneNode(true); triggerElement.replaceChild( clonedSelectItemElement, triggerElement.firstElementChild ); } selectItemElement.setAttribute(PROPERTY_SELECTED, ''); } selectItemElement.setAttribute(MARKET_SELECT_ITEM_ID, data.value); fragment.appendChild(tempParentNode.firstElementChild); }); let value = defaultValue; listElementWithTemplate.addEventListener( 'click', (e) => { if (this.isEditMode) { this.showToast_('编辑器下不支持切换国家'); SPZ.whenApiDefined(dropdown).then((apis) => { apis.close(); }); return; } let targetElement = e.target; while (targetElement) { if ( !targetElement || targetElement.getAttribute(MARKET_SELECT_ITEM_ID) ) { break; } targetElement = targetElement.parentNode; } if ( !targetElement || !targetElement.hasAttribute(MARKET_SELECT_ITEM_ID) ) { return; } const selectValue = targetElement.getAttribute(MARKET_SELECT_ITEM_ID); if (value === selectValue) { SPZ.whenApiDefined(dropdown).then((apis) => { apis.close(); }); return; } const selectedData = dataList.find((c) => c.value === selectValue); if (shouldUpdateSelectedItem) { const tempParentNode = self.document.createElement('div'); const clonedTemplate = self.document.importNode( clonedItemTemplate.content, true ); tempParentNode.appendChild(clonedTemplate); this.renderMarketSelectTemplateNode_(tempParentNode, selectedData); tempParentNode.firstElementChild.classList.add( 'market-select-item' ); triggerElement.replaceChild( tempParentNode.firstElementChild, triggerElement.firstElementChild ); } value = selectValue; itemHandler?.(selectedData); SPZ.whenApiDefined(dropdown).then((apis) => { apis.close(); }); }, false ); listElementWithTemplate.removeChild(itemTemplate); listElementWithTemplate.appendChild(fragment); listElementWithTemplate.classList.add('market-select-list'); dropdown.appendChild(listElementWithTemplate); if (subTitleRole) { this.renderSelectTitle_(dropdown, subTitleRole); } return dropdown; } createSelect_({ parent, defaultValue, dataList, listElementWithTemplate, itemHandler, titleRole, }) { const triggerElement = self.document.createElement('div'); triggerElement.classList.add('market-select'); const displayElement = self.document.createElement('div'); triggerElement.appendChild(displayElement); triggerElement.appendChild(this.createDropdownIcon_()); const dropdown = this.renderDropdownListWithClickEvent_({ triggerElement, dataList, listElementWithTemplate, defaultValue, itemHandler, shouldUpdateSelectedItem: true, }); this.bindDropdownOpenClickEvent_(triggerElement, dropdown); const dropdownContainer = self.document.createElement('div'); dropdownContainer.appendChild(triggerElement); dropdownContainer.appendChild(dropdown); dropdownContainer.classList.add('market-select-container'); this.renderSelectTitle_(dropdownContainer, titleRole); parent.appendChild(dropdownContainer); } getListElementWithTemplate_(role) { const template = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${role}"]` ); if (template) { const clonedTemplate = template.cloneNode(true); const tempParent = self.document.createElement("div"); tempParent.appendChild(clonedTemplate.content); const listElementWithTemplate = SPZCore.Dom.scopedQuerySelector( tempParent, `[role="${MARKET_SELECT_LIST}"]` ); return listElementWithTemplate; } return null; } renderSelectTitle_(parent, role) { if (!parent || !role) { return; } const template = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${role}"]` ); const content = self.document.importNode(template.content, true); parent.insertBefore(content, parent.firstElementChild); parent.firstElementChild.classList.add( role.includes('sub') ? 'market-pc-header-select-sub-title' : 'market-pc-header-select-title' ); } initSelect_(rootNode, options) { const parent = rootNode || this.element; if (this.useCountrySelect_) { this.createSelect_({ parent, titleRole: options?.shouldRenderSelectTitle ? MARKET_PC_HEADER_COUNTRY_SELECT_TITLE : undefined, defaultValue: this.getDefaultCountryValue_(), dataList: this.marketCountryList.map(this.mapCountryRenderData_), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_COUNTRY_SELECT ), itemHandler: this.handleCountrySelectChange_.bind(this), }); } if (this.useLanguageSelect_) { this.createSelect_({ parent, titleRole: options?.shouldRenderSelectTitle ? MARKET_PC_HEADER_LANGUAGE_SELECT_TITLE : undefined, defaultValue: this.getDefaultLanguageValue_(), dataList: this.marketLanguages.map(this.mapLanguageRenderData_), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_LANGUAGE_SELECT ), itemHandler: this.handleLanguageSelectChange_.bind(this), }); } } initPcHeaderTriggerElement() { const headerTriggerElementTemplate = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${MARKET_PC_HEADER_TRIGGER}"]` ); const headerTriggerElement = self.document.importNode( headerTriggerElementTemplate.content, true ); const parentDivElement = self.document.createElement('div'); parentDivElement.setAttribute('role', MARKET_PC_HEADER_TRIGGER); parentDivElement.appendChild(headerTriggerElement); this.element.removeChild(headerTriggerElementTemplate); return parentDivElement; } initPanelWithSelect_() { const triggerElement = this.initPcHeaderTriggerElement(); const dropdown = this.createDropdown_(); const panelElement = self.document.createElement('div'); panelElement.classList.add('market-panel'); this.initSelect_(panelElement, {shouldRenderSelectTitle: true}); dropdown.appendChild(panelElement); this.bindDropdownOpenClickEvent_(triggerElement, dropdown); this.element.appendChild(triggerElement); this.element.insertBefore(dropdown, triggerElement); } initSingleSelectDropdown_() { const triggerElement = this.initPcHeaderTriggerElement(); let dropdown; if (this.useCountrySelect_) { dropdown = this.renderDropdownListWithClickEvent_({ triggerElement, subTitleRole: MARKET_PC_HEADER_COUNTRY_SELECT_SUB_TITLE, dataList: this.marketCountryList.map(this.mapCountryRenderData_), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_COUNTRY_SELECT ), defaultValue: this.getDefaultCountryValue_(), itemHandler: this.handleCountrySelectChange_.bind(this), }); } else if (this.useLanguageSelect_) { dropdown = this.renderDropdownListWithClickEvent_({ triggerElement, subTitleRole: MARKET_PC_HEADER_LANGUAGE_SELECT_SUB_TITLE, dataList: this.marketLanguages.map(this.mapLanguageRenderData_), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_LANGUAGE_SELECT ), defaultValue: this.getDefaultLanguageValue_(), itemHandler: this.handleLanguageSelectChange_.bind(this), }); } if (dropdown) { this.bindDropdownOpenClickEvent_(triggerElement, dropdown); this.element.appendChild(triggerElement); this.element.appendChild(dropdown); } } initEntry_() { if (this.blockSectionPosition_ === SECTION_TYPE_HEADER) { if (this.isSingleSelectMode_) { this.initSingleSelectDropdown_(); } else if (this.useCountrySelect_ && this.useLanguageSelect_) { this.initPanelWithSelect_(); } } this.initSelect_(this.element); } async initData_() { const promises = []; if (this.useCountrySelect_ || this.useModal_) { promises.push(this.getCountryList_(), this.getIpMatchingMarket_()); } if (this.useLanguageSelect_) { promises.push(this.getMarketLanguages_(this.global.market.market_id)); } return Promise.all(promises).then((results) => { const ipMatchingMarket = results.find((result) => result.hasOwnProperty('matching_station') ); const marketCountryList = results.find((result) => result.hasOwnProperty('data') ); if (ipMatchingMarket && marketCountryList) { this.ipMatchingMarket = ipMatchingMarket?.matching_station?.find?.( (item) => item.type === 'multiple_market' ) || { img: marketCountryList.length ? marketCountryList?.[0]?.detail && marketCountryList[0].detail?.flag : '', }; } }); } initModal_() { if ( this.isEditMode || !this.ipMatchingMarket?.market_id || !this.useModal_ || this.hasCookie_(COOKIE_TIPS_NAME) || this.win[MARKET_MODAL_LOADED] ) { return; } this.win[MARKET_MODAL_LOADED] = true; const redirectParam = new URLSearchParams(this.win.location.search).get( URL_REDIRECT ); if (redirectParam) { this.initModalEntry_(MARKET_GATEWAY_REDIRECT_MODAL); } else if ( this.ipMatchingMarket.market_id !== this.global?.market?.market_id ) { this.initModalEntry_(MARKET_MODAL); } } async init_() { await this.initSettings_(); await this.initData_(); this.initEntry_(); this.initModal_(); } getDefaultCountryValue_() { return this.getCookie_(MARKET_COUNTRY_COOKIE) || this.marketCountryList[0]?.country_code; } mapCountryRenderData_(country) { return { flag: country?.detail?.flag || '', value: country?.country_code, currency: country?.currency, currencySymbol: country?.symbol?.val || '', url: country?.url, }; } handleCountrySelectChange_(selectedData) { this.setCookie_(MARKET_COUNTRY_COOKIE, selectedData.value); this.handleChangeURL_(selectedData.url); } getDefaultLanguageValue_() { return this.marketLanguages?.find?.( (lang) => lang.code === this.global?.market?.market_lang )?.name; } mapLanguageRenderData_(language) { return { value: language.name, url: language.url, }; } handleLanguageSelectChange_(selectedData) { this.handleChangeURL_(selectedData.url); } renderTemplateElement_(parent, role, value) { const elements = SPZCore.Dom.scopedQuerySelectorAll( parent, `[role="${role}"]` ); elements.forEach((element) => { if (element && value) { element.innerHTML = value; } }); } renderTemplateImg_(parent, role, options) { const flagElement = SPZCore.Dom.scopedQuerySelector( parent, `[role="${role}"]` ); if (flagElement && options?.src && options?.height && options?.width) { const spzImg = self.document.createElement('ljs-img'); spzImg.setAttribute('src', options.src); spzImg.setAttribute('layout', 'responsive'); spzImg.setAttribute('width', options.width); spzImg.setAttribute('height', options.height); spzImg.setAttribute( 'style', `width: ${options.width}px; height: ${options.height}px;` ); flagElement.appendChild(spzImg); } } handleChangeURL_(url) { if (!!url) { let {origin, pathname, search} = this.win.location; pathname = pathname.replace(SITE, url != '/' ? url : ''); this.win.location.href = `${origin}${pathname}${search}`; } else { this.win.location.reload(true); } } initModalEntry_(role) { const marketModalTemplate = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${role}"]` ); if (marketModalTemplate) { const tempParentNode = self.document.createElement('div'); const clonedTemplate = self.document.importNode( marketModalTemplate.content, true ); tempParentNode.appendChild(clonedTemplate); this.renderTemplateImg_(tempParentNode, MARKET_MODAL_FLAG, { src: this.ipMatchingMarket?.img, width: '80', height: '80', }); this.renderTemplateElement_( tempParentNode, MARKET_MODAL_COUNTRY_CODE, this.ipMatchingMarket?.name ); this.renderTemplateElement_( tempParentNode, MARKET_MODAL_CURRENCY_SYMBOL, this.ipMatchingMarket?.currency_with_symbol ); const lightbox = self.document.createElement('ljs-lightbox'); lightbox.setAttribute('layout', 'nodisplay'); lightbox.appendChild(tempParentNode.firstElementChild); self.document.body.appendChild(lightbox); SPZ.whenApiDefined(lightbox).then((apis) => { SPZCore.Dom.scopedQuerySelectorAll( lightbox, `[role="${MARKET_MODAL_CLOSE}"]` ).forEach((ele) => { ele.addEventListener('click', () => { this.setCookie_(COOKIE_TIPS_NAME, 1, COOKIE_TIPS_EXPIRES); apis.close(); }); }); const marketModalConfirmElement = SPZCore.Dom.scopedQuerySelector( lightbox, `[role="${MARKET_MODAL_CONFIRM}"]` ); if (marketModalConfirmElement && this.ipMatchingMarket?.url) { marketModalConfirmElement.addEventListener('click', () => { this.setCookie_(COOKIE_TIPS_NAME, 1, COOKIE_TIPS_EXPIRES); this.setCookie_(MARKET_COUNTRY_COOKIE, this.ipMatchingMarket?.name); this.handleChangeURL_(this.ipMatchingMarket?.url); }); } const marketModalReselectElement = SPZCore.Dom.scopedQuerySelector( lightbox, `[role="${MARKET_MODAL_RESELECT}"]` ); if (marketModalReselectElement) { marketModalReselectElement.addEventListener('click', () => { this.setCookie_(COOKIE_TIPS_NAME, 1, COOKIE_TIPS_EXPIRES); const marketReselectTemplate = SPZCore.Dom.scopedQuerySelector( this.element, `[role="${MARKET_RESELECT_MODAL}"]` ); if (marketReselectTemplate && lightbox.firstElementChild) { const clonedTemplate = self.document.importNode( marketReselectTemplate.content, true ); const selectParent = SPZCore.Dom.scopedQuerySelector( clonedTemplate, `[role="${MARKET_MODAL_RESELECT_COUNTRY_SELECT}"]` ); if (selectParent) { this.createSelect_({ parent: selectParent, defaultValue: this.getDefaultCountryValue_(), dataList: this.marketCountryList.map( this.mapCountryRenderData_ ), listElementWithTemplate: this.getListElementWithTemplate_( MARKET_COUNTRY_SELECT ), itemHandler: this.handleCountrySelectChange_.bind(this), }); } lightbox.replaceChild(clonedTemplate, lightbox.firstElementChild); SPZCore.Dom.scopedQuerySelectorAll( lightbox, `[role="${MARKET_MODAL_CLOSE}"]` ).forEach((ele) => { ele.addEventListener('click', () => { this.setCookie_(COOKIE_TIPS_NAME, 1, COOKIE_TIPS_EXPIRES); apis.close(); }); }); } }); } apis.open(); }); } } async getMarketThemeSettings_() { return this.xhr_.fetchJson(MARKET_THEME_SETTINGS).then((res) => { this.useCountrySelect_ = !!res.country_selector_enabled; this.useLanguageSelect_ = !!res.language_selector_enabled && this.global?.market?.market_id; this.useModal_ = !!res.redirect_pop_enabled; return res; }); } async getCountryList_() { return this.xhr_.fetchJson(MARKET_COUNTRIES).then((res) => { this.marketCountryList = res.data.length ? res.data : []; return res; }); } async getIpMatchingMarket_() { return this.xhr_.fetchJson(IP_MATCHING_MARKET, { method: 'POST', body: { stations: [], }, }); } async getMarketLanguages_(marketId) { return this.xhr_ .fetchJson(MARKET_LANGUAGES.replace(/:id/gim, marketId)) .then((res) => { this.marketLanguages = res?.languages?.length ? res.languages : []; return res; }); } hasCookie_(name) { const m = self.document.cookie .split(';') .filter((pair) => pair.trim().startsWith(name + '=')); return !!(m && m[0]); } getCookie_(name) { const m = self.document.cookie .split(';') .filter((pair) => pair.trim().startsWith(name + '=')); return m && m[0] ? m[0].split('=')[1] : null; } setCookie_(name, value, expires) { const expiresDate = new Date(Date.now() + expires).toGMTString(); self.document.cookie = `${name}=${encodeURIComponent( value )};expires=${expiresDate};path=/`; } } SPZ.defineElement('spz-custom-market', SpzCustomMarket);

What Are UV Lamps Used For? Exploring Their Role in Water Treatment & Other Industries

Apr 09，2025 by Walchin

What Are UV Lamps Used For? Exploring Their Role in Water Treatment & Other Industries

Ultraviolet (UV) lamps play a crucial role in modern disinfection and sterilization technologies. Whether used in water purification, air filtration, or surface sterilization, UV lamps offer a chemical-free, efficient method for eliminating harmful microorganisms. But what exactly are UV lamps, and what are they used for?

Let’s dive into the main applications of UV lamps, especially in the water treatment industry.

What Is a UV Lamp?

A UV lamp emits ultraviolet light, typically in the UV-C range (200–280 nm), which is capable of destroying the DNA of bacteria, viruses, and protozoa. This makes it an effective tool for sterilization without the use of chemicals or heat.

Top Uses of UV Lamps

1. Water Disinfection

One of the most common uses of UV lamps is in UV water treatment systems. They are used in:

Drinking water purification
Industrial process water
Wastewater treatment
Aquarium and pond systems

How it works: Water flows through a UV chamber where the UV-C light kills up to 99.99% of microorganisms like E. coli, Salmonella, and Giardia.

Walchin Tip: We recommend UV sterilizers as part of a complete water treatment system, especially when dealing with well water or water with microbial risk.

2. Air Purification

UV lamps are also used in HVAC systems to eliminate airborne pathogens. This is especially helpful in:

Hospitals
Laboratories
Commercial buildings
Homes with allergy sufferers

Benefit: Reduces the spread of airborne illnesses and improves indoor air quality.

3. Surface Sterilization

UV lamps are used to sterilize surfaces in sterile environments such as:

Operating rooms
Food processing plants
Laboratories

Usage: UV-C lamps are mounted overhead or integrated into robotic arms for contactless sterilization.

4. Industrial and Commercial Applications

UV lamps are used in several industries for:

Pharmaceutical water treatment
Electronics manufacturing
Beverage bottling plants
Cooling tower systems

UV treatment ensures compliance with hygiene standards and prevents biofouling in sensitive processes.

Why Use UV Lamps?

Chemical-free: No chlorine or harmful residues
Environmentally friendly: No by-products
Highly effective: Destroys bacteria, viruses, and protozoa in seconds
Low maintenance: Just periodic lamp replacement

UV Lamp Use in Walchin Systems

At Walchin, we integrate UV sterilization into both household and industrial-grade water purification systems. Our UV solutions are engineered to ensure safe, clean, and microbiologically pure water, especially where pathogens are a concern.

Whether you're managing a commercial RO system, food processing facility, or hospital water supply, UV treatment can be the critical final step in your purification process.

Final Thoughts

UV lamps are powerful tools in the fight against waterborne diseases and contamination. Their applications go far beyond just water—they’re making our air, surfaces, and production lines safer every day.

Looking for a reliable UV water treatment system? Contact Walchin for expert advice and industry-grade UV disinfection solutions.