Project Leyden addresses Java pain points

Leyden would mitigate Java’s large footprint and long-standing performance issues by introducing static images to the platform

Long-term Java pain points including slow startup time, slow time to peak performance, and large footprint would be addressed by a proposal being floated in the OpenJDK community by Mark Reinhold, chief architect of Oracle’s Java platform group.

Called Project Leyden, the proposal would deal with these pain points by introducing the concept of static images to the Java platform and the JDK. A static image is a standalone programme, derived from an application that runs that application, and no other. A static image is also a “closed world” that cannot load classes from outside the image or spin new bytecodes at runtime.

These two constraints enable build-time analyses that can remove unused classes and identify initialisers that can be run at build time, thus reducing both the size of the runtime image and its startup time. These constraints also enable aggressive ahead-of-time compilation, thereby reducing the image’s time to peak performance.

 

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Reinhold cautioned, though, that static images are not everyone, due to the closed-world constraint, nor are they for every type of application. Often, static images require manual configuration to achieve the best results. “We do, however, expect the results to be worthwhile in important deployment scenarios, such as small, embedded devices and the cloud,” Reinhold wrote. 

Taking inspiration from past efforts to explore the space, including the GNU Compiler for Java and the Native Image for GraalVM, Project Leyden would add static images to the Java Platform Specification. It is expected that GraalVM will evolve to implement that specification. Developers using only the standard, specific static-image feature would then be able to switch easily between Leyden in the JDK, Native Image in GraalVM, and other conforming implementations that may arise. They can choose among tradeoffs of compile time, startup time, and image size.

Reinhold, who would lead the project, advised that there was no intent to implement Leyden by merging Native Image code from GraalVM into the JDK. Rather, Leyden would be based upon existing components in the JDK such as HotSpot JVM, the Java ahead-of-time compiler (jaotc), application-class data sharing, and the jlink linking tool.

Reinhold launched discussion of the project on 27 April. Initial feedback on the project expressed on an OpenJDK mailing list was mixed, with one person suggesting it would be difficult to add static images to the Java Platform Specification, while also remarking that the project was interesting and welcome. Another person said he was happy to see the proposal, because the time required to optimise performance and memory footprint has been the primary user complaint when using Java for microservices. Another commenter said it seems like the right time for such a project.

Project Leyden would begin with a clone of the current JDK mainline release, JDK 15, and track mainline releases moving forward. Leyden would be delivered via a series of JEPs (JDK Enhancement Proposals) that would likely span multiple releases.

IDG News Service

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(function($) {window.fnames = new Array(); window.ftypes = new Array();fnames[0]='EMAIL';ftypes[0]='email';fnames[1]='FNAME';ftypes[1]='text';fnames[2]='MMERGE2';ftypes[2]='text';fnames[3]='MMERGE3';ftypes[3]='text';fnames[4]='MMERGE4';ftypes[4]='text';fnames[5]='SIGNUP';ftypes[5]='text';fnames[6]='MMERGE6';ftypes[6]='imageurl';}(jQuery));var $mcj = jQuery.noConflict(true); // SMS Phone Multi-Country Functionality if(!window.MC) { window.MC = {}; } window.MC.smsPhoneData = { defaultCountryCode: 'IE', programs: [], smsProgramDataCountryNames: [] }; function getCountryUnicodeFlag(countryCode) { return countryCode.toUpperCase().replace(/./g, (char) => String.fromCodePoint(char.charCodeAt(0) + 127397)) }; // HTML sanitization function to prevent XSS function sanitizeHtml(str) { if (typeof str !== 'string') return ''; return str .replace(/&/g, '&') .replace(//g, '>') .replace(/"/g, '"') .replace(/'/g, ''') .replace(/\//g, '/'); } // URL sanitization function to prevent javascript: and data: URLs function sanitizeUrl(url) { if (typeof url !== 'string') return ''; const trimmedUrl = url.trim().toLowerCase(); if (trimmedUrl.startsWith('javascript:') || trimmedUrl.startsWith('data:') || trimmedUrl.startsWith('vbscript:')) { return '#'; } return url; } const getBrowserLanguage = () => { if (!window?.navigator?.language?.split('-')[1]) { return window?.navigator?.language?.toUpperCase(); } return window?.navigator?.language?.split('-')[1]; }; // getBrowserLanguageCode() and getSmsProgramForCountryAndLanguage() are provided globally // by the external mc-sms-phone.js script loaded alongside this inline form script. function getDefaultCountryProgram(defaultCountryCode, smsProgramData) { if (!smsProgramData || smsProgramData.length === 0) { return null; } var browserCountryCode = getBrowserLanguage(); var browserLangCode = getBrowserLanguageCode(); if (browserCountryCode) { var match = getSmsProgramForCountryAndLanguage(smsProgramData, browserCountryCode, browserLangCode); if (match) { return match; } } if (defaultCountryCode) { var match = getSmsProgramForCountryAndLanguage(smsProgramData, defaultCountryCode, browserLangCode); if (match) { return match; } } return smsProgramData[0]; } function updateSmsLegalText(countryCode, fieldName) { if (!countryCode || !fieldName) { return; } var programs = window?.MC?.smsPhoneData?.programs; if (!programs || !Array.isArray(programs)) { return; } var browserLangCode = getBrowserLanguageCode(); var program = getSmsProgramForCountryAndLanguage(programs, countryCode, browserLangCode); if (!program || !program.requiredTemplate) { return; } var smsConsentHtmlRenderingFixEnabled = true; const legalTextElement = document.querySelector('#legal-text-' + fieldName); if (!legalTextElement) { return; } const divRegex = new RegExp(']*>', 'gi'); const blockWrapperRegex = new RegExp(']*>', 'gi'); const fullAnchorRegex = new RegExp('<a.*?', 'g'); const anchorRegex = new RegExp('(.*?)'); const template = smsConsentHtmlRenderingFixEnabled ? program.requiredTemplate .replace(/\s*

]*>/gi, ' ') .replace(blockWrapperRegex, '') : program.requiredTemplate.replace(divRegex, ''); legalTextElement.textContent = ''; const parts = template.split(/(.*?)/g); parts.forEach(function(part) { if (!part) { return; } const anchorMatch = part.match(/(.+?)/); if (anchorMatch) { const linkElement = document.createElement('a'); linkElement.href = sanitizeUrl(anchorMatch[1]); linkElement.target = anchorMatch[2] ? sanitizeHtml(anchorMatch[2]) : '_blank'; linkElement.rel = 'noopener noreferrer'; linkElement.textContent = sanitizeHtml(anchorMatch[3]); legalTextElement.appendChild(linkElement); } else { legalTextElement.appendChild(document.createTextNode(part)); } }); } function generateDropdownOptions(smsProgramData) { if (!smsProgramData || smsProgramData.length === 0) { return ''; } var programs = true ? smsProgramData.filter(function(p, i, arr) { return arr.findIndex(function(q) { return q.countryCode === p.countryCode; }) === i; }) : smsProgramData; return programs.map(program => { const flag = getCountryUnicodeFlag(program.countryCode); const countryName = getCountryName(program.countryCode); const callingCode = program.countryCallingCode || ''; // Sanitize all values to prevent XSS const sanitizedCountryCode = sanitizeHtml(program.countryCode || ''); const sanitizedCountryName = sanitizeHtml(countryName || ''); const sanitizedCallingCode = sanitizeHtml(callingCode || ''); return '' + sanitizedCountryName + ' ' + sanitizedCallingCode + ''; }).join(''); } function getCountryName(countryCode) { if (window.MC?.smsPhoneData?.smsProgramDataCountryNames && Array.isArray(window.MC.smsPhoneData.smsProgramDataCountryNames)) { for (let i = 0; i < window.MC.smsPhoneData.smsProgramDataCountryNames.length; i++) { if (window.MC.smsPhoneData.smsProgramDataCountryNames[i].code === countryCode) { return window.MC.smsPhoneData.smsProgramDataCountryNames[i].name; } } } return countryCode; } function getDefaultPlaceholder(countryCode) { if (!countryCode || typeof countryCode !== 'string') { return '+1 000 000 0000'; // Default US placeholder } var mockPlaceholders = [ { countryCode: 'US', placeholder: '+1 000 000 0000', helpText: 'Include the US country code +1 before the phone number', }, { countryCode: 'GB', placeholder: '+44 0000 000000', helpText: 'Include the GB country code +44 before the phone number', }, { countryCode: 'CA', placeholder: '+1 000 000 0000', helpText: 'Include the CA country code +1 before the phone number', }, { countryCode: 'AU', placeholder: '+61 000 000 000', helpText: 'Include the AU country code +61 before the phone number', }, { countryCode: 'DE', placeholder: '+49 000 0000000', helpText: 'Fügen Sie vor der Telefonnummer die DE-Ländervorwahl +49 ein', }, { countryCode: 'FR', placeholder: '+33 0 00 00 00 00', helpText: 'Incluez le code pays FR +33 avant le numéro de téléphone', }, { countryCode: 'ES', placeholder: '+34 000 000 000', helpText: 'Incluya el código de país ES +34 antes del número de teléfono', }, { countryCode: 'NL', placeholder: '+31 0 00000000', helpText: 'Voeg de NL-landcode +31 toe vóór het telefoonnummer', }, { countryCode: 'BE', placeholder: '+32 000 00 00 00', helpText: 'Incluez le code pays BE +32 avant le numéro de téléphone', }, { countryCode: 'CH', placeholder: '+41 00 000 00 00', helpText: 'Fügen Sie vor der Telefonnummer die CH-Ländervorwahl +41 ein', }, { countryCode: 'AT', placeholder: '+43 000 000 0000', helpText: 'Fügen Sie vor der Telefonnummer die AT-Ländervorwahl +43 ein', }, { countryCode: 'IE', placeholder: '+353 00 000 0000', helpText: 'Include the IE country code +353 before the phone number', }, { countryCode: 'IT', placeholder: '+39 000 000 0000', helpText: 'Includere il prefisso internazionale IT +39 prima del numero di telefono', }, { countryCode: 'NO', placeholder: '+47 000 00 000', helpText: 'Inkluder NO landskode +47 før telefonnummeret', }, { countryCode: 'SE', placeholder: '+46 00 000 00 00', helpText: 'Inkludera SE landskod +46 före telefonnumret', }, { countryCode: 'DK', placeholder: '+45 00 00 00 00', helpText: 'Inkluder DK landekode +45 før telefonnummeret', }, { countryCode: 'FI', placeholder: '+358 00 000 0000', helpText: 'Sisällytä FI-maakoodi +358 ennen puhelinnumeroa', }, { countryCode: 'EE', placeholder: '+372 0000 0000', helpText: 'Lisage EE riigikood +372 telefoninumbri ette', }, { countryCode: 'PL', placeholder: '+48 000 000 000', helpText: 'Podaj numer kierunkowy PL +48 przed numerem telefonu', }, { countryCode: 'SK', placeholder: '+421 000 000 000', helpText: 'Pred telefónne číslo uveďte kód krajiny SK +421', }, { countryCode: 'LV', placeholder: '+371 0000 0000', helpText: 'Iekļaujiet LV valsts kodu +371 pirms tālruņa numura', }, { countryCode: 'LT', placeholder: '+370 0000 0000', helpText: 'Įtraukite LT šalies kodą +370 prieš telefono numerį', }, { countryCode: 'GR', placeholder: '+30 000 000 0000', helpText: 'Συμπεριλάβετε τον κωδικό χώρας GR +30 πριν από τον αριθμό τηλεφώνου', }, { countryCode: 'PT', placeholder: '+351 000 000 000', helpText: 'Inclua o código de país PT +351 antes do número de telefone', }, { countryCode: 'HR', placeholder: '+385 00 000 0000', helpText: 'Uključite HR pozivni broj države +385 prije telefonskog broja', }, { countryCode: 'SI', placeholder: '+386 00 000 000', helpText: 'Vključite SI kodo države +386 pred telefonsko številko', }, { countryCode: 'IS', placeholder: '+354 000 0000', helpText: 'Láttu IS landsnúmer +354 fylgja á undan símanúmerinu', }, { countryCode: 'LU', placeholder: '+352 000 000 000', helpText: 'Incluez le code pays LU +352 avant le numéro de téléphone', }, { countryCode: 'MC', placeholder: '+377 00 00 00 00', helpText: 'Incluez le code pays MC +377 avant le numéro de téléphone', }, { countryCode: 'AD', placeholder: '+376 000 000', helpText: 'Incloeu el codi de país AD +376 abans del número de telèfon', }, { countryCode: 'JE', placeholder: '+44 0000 000000', helpText: 'Include the JE country code +44 before the phone number', }, { countryCode: 'IM', placeholder: '+44 0000 000000', helpText: 'Include the IM country code +44 before the phone number', }, { countryCode: 'GG', placeholder: '+44 0000 000000', helpText: 'Include the GG country code +44 before the phone number', }, { countryCode: 'AL', placeholder: '+355 00 000 0000', helpText: 'Përfshini kodin e vendit AL +355 para numrit të telefonit', }, { countryCode: 'SM', placeholder: '+378 0000 000000', helpText: 'Includere il prefisso internazionale SM +378 prima del numero di telefono', }, { countryCode: 'FO', placeholder: '+298 000000', helpText: 'Inkluder FO landekode +298 før telefonnummeret', }, { countryCode: 'MT', placeholder: '+356 0000 0000', helpText: 'Include the MT country code +356 before the phone number', }, { countryCode: 'LI', placeholder: '+423 000 0000', helpText: 'Fügen Sie vor der Telefonnummer die LI-Ländervorwahl +423 ein', }, { countryCode: 'GI', placeholder: '+350 000 00000', helpText: 'Include the GI country code +350 before the phone number', }, { countryCode: 'MD', placeholder: '+373 00 000 000', helpText: 'Includeți codul de țară MD +373 înaintea numărului de telefon', }, { countryCode: 'HU', placeholder: '+36 00 000 0000', helpText: 'A telefonszám előtt adja meg a HU országkódot +36', }, { countryCode: 'NZ', placeholder: '+64 00 000 0000', helpText: 'Include the NZ country code +64 before the phone number', }, { countryCode: 'ME', placeholder: '+382 00 000 000', helpText: 'Uključite ME pozivni broj države +382 prije telefonskog broja', }, ]; const selectedPlaceholder = mockPlaceholders.find(function(item) { return item && item.countryCode === countryCode; }); return selectedPlaceholder ? selectedPlaceholder.placeholder : mockPlaceholders[0].placeholder; } function updatePlaceholder(countryCode, fieldName) { if (!countryCode || !fieldName) { return; } const phoneInput = document.querySelector('#mce-' + fieldName); if (!phoneInput) { return; } const placeholder = getDefaultPlaceholder(countryCode); if (placeholder) { phoneInput.placeholder = placeholder; } } function updateCountryCodeInstruction(countryCode, fieldName) { updatePlaceholder(countryCode, fieldName); } function getDefaultHelpText(countryCode) { var mockPlaceholders = [ { countryCode: 'US', placeholder: '+1 000 000 0000', helpText: 'Include the US country code +1 before the phone number', }, { countryCode: 'GB', placeholder: '+44 0000 000000', helpText: 'Include the GB country code +44 before the phone number', }, { countryCode: 'CA', placeholder: '+1 000 000 0000', helpText: 'Include the CA country code +1 before the phone number', }, { countryCode: 'AU', placeholder: '+61 000 000 000', helpText: 'Include the AU country code +61 before the phone number', }, { countryCode: 'DE', placeholder: '+49 000 0000000', helpText: 'Fügen Sie vor der Telefonnummer die DE-Ländervorwahl +49 ein', }, { countryCode: 'FR', placeholder: '+33 0 00 00 00 00', helpText: 'Incluez le code pays FR +33 avant le numéro de téléphone', }, { countryCode: 'ES', placeholder: '+34 000 000 000', helpText: 'Incluya el código de país ES +34 antes del número de teléfono', }, { countryCode: 'NL', placeholder: '+31 0 00000000', helpText: 'Voeg de NL-landcode +31 toe vóór het telefoonnummer', }, { countryCode: 'BE', placeholder: '+32 000 00 00 00', helpText: 'Incluez le code pays BE +32 avant le numéro de téléphone', }, { countryCode: 'CH', placeholder: '+41 00 000 00 00', helpText: 'Fügen Sie vor der Telefonnummer die CH-Ländervorwahl +41 ein', }, { countryCode: 'AT', placeholder: '+43 000 000 0000', helpText: 'Fügen Sie vor der Telefonnummer die AT-Ländervorwahl +43 ein', }, { countryCode: 'IE', placeholder: '+353 00 000 0000', helpText: 'Include the IE country code +353 before the phone number', }, { countryCode: 'IT', placeholder: '+39 000 000 0000', helpText: 'Includere il prefisso internazionale IT +39 prima del numero di telefono', }, { countryCode: 'NO', placeholder: '+47 000 00 000', helpText: 'Inkluder NO landskode +47 før telefonnummeret', }, { countryCode: 'SE', placeholder: '+46 00 000 00 00', helpText: 'Inkludera SE landskod +46 före telefonnumret', }, { countryCode: 'DK', placeholder: '+45 00 00 00 00', helpText: 'Inkluder DK landekode +45 før telefonnummeret', }, { countryCode: 'FI', placeholder: '+358 00 000 0000', helpText: 'Sisällytä FI-maakoodi +358 ennen puhelinnumeroa', }, { countryCode: 'EE', placeholder: '+372 0000 0000', helpText: 'Lisage EE riigikood +372 telefoninumbri ette', }, { countryCode: 'PL', placeholder: '+48 000 000 000', helpText: 'Podaj numer kierunkowy PL +48 przed numerem telefonu', }, { countryCode: 'SK', placeholder: '+421 000 000 000', helpText: 'Pred telefónne číslo uveďte kód krajiny SK +421', }, { countryCode: 'LV', placeholder: '+371 0000 0000', helpText: 'Iekļaujiet LV valsts kodu +371 pirms tālruņa numura', }, { countryCode: 'LT', placeholder: '+370 0000 0000', helpText: 'Įtraukite LT šalies kodą +370 prieš telefono numerį', }, { countryCode: 'GR', placeholder: '+30 000 000 0000', helpText: 'Συμπεριλάβετε τον κωδικό χώρας GR +30 πριν από τον αριθμό τηλεφώνου', }, { countryCode: 'PT', placeholder: '+351 000 000 000', helpText: 'Inclua o código de país PT +351 antes do número de telefone', }, { countryCode: 'HR', placeholder: '+385 00 000 0000', helpText: 'Uključite HR pozivni broj države +385 prije telefonskog broja', }, { countryCode: 'SI', placeholder: '+386 00 000 000', helpText: 'Vključite SI kodo države +386 pred telefonsko številko', }, { countryCode: 'IS', placeholder: '+354 000 0000', helpText: 'Láttu IS landsnúmer +354 fylgja á undan símanúmerinu', }, { countryCode: 'LU', placeholder: '+352 000 000 000', helpText: 'Incluez le code pays LU +352 avant le numéro de téléphone', }, { countryCode: 'MC', placeholder: '+377 00 00 00 00', helpText: 'Incluez le code pays MC +377 avant le numéro de téléphone', }, { countryCode: 'AD', placeholder: '+376 000 000', helpText: 'Incloeu el codi de país AD +376 abans del número de telèfon', }, { countryCode: 'JE', placeholder: '+44 0000 000000', helpText: 'Include the JE country code +44 before the phone number', }, { countryCode: 'IM', placeholder: '+44 0000 000000', helpText: 'Include the IM country code +44 before the phone number', }, { countryCode: 'GG', placeholder: '+44 0000 000000', helpText: 'Include the GG country code +44 before the phone number', }, { countryCode: 'AL', placeholder: '+355 00 000 0000', helpText: 'Përfshini kodin e vendit AL +355 para numrit të telefonit', }, { countryCode: 'SM', placeholder: '+378 0000 000000', helpText: 'Includere il prefisso internazionale SM +378 prima del numero di telefono', }, { countryCode: 'FO', placeholder: '+298 000000', helpText: 'Inkluder FO landekode +298 før telefonnummeret', }, { countryCode: 'MT', placeholder: '+356 0000 0000', helpText: 'Include the MT country code +356 before the phone number', }, { countryCode: 'LI', placeholder: '+423 000 0000', helpText: 'Fügen Sie vor der Telefonnummer die LI-Ländervorwahl +423 ein', }, { countryCode: 'GI', placeholder: '+350 000 00000', helpText: 'Include the GI country code +350 before the phone number', }, { countryCode: 'MD', placeholder: '+373 00 000 000', helpText: 'Includeți codul de țară MD +373 înaintea numărului de telefon', }, { countryCode: 'HU', placeholder: '+36 00 000 0000', helpText: 'A telefonszám előtt adja meg a HU országkódot +36', }, { countryCode: 'NZ', placeholder: '+64 00 000 0000', helpText: 'Include the NZ country code +64 before the phone number', }, { countryCode: 'ME', placeholder: '+382 00 000 000', helpText: 'Uključite ME pozivni broj države +382 prije telefonskog broja', }, ]; if (!countryCode || typeof countryCode !== 'string') { return mockPlaceholders[0].helpText; } const selectedHelpText = mockPlaceholders.find(function(item) { return item && item.countryCode === countryCode; }); return selectedHelpText ? selectedHelpText.helpText : mockPlaceholders[0].helpText; } function setDefaultHelpText(countryCode) { const helpTextSpan = document.querySelector('#help-text'); if (!helpTextSpan) { return; } } function updateHelpTextCountryCode(countryCode, fieldName) { if (!countryCode || !fieldName) { return; } setDefaultHelpText(countryCode); } function initializeSmsPhoneDropdown(fieldName) { if (!fieldName || typeof fieldName !== 'string') { return; } const dropdown = document.querySelector('#country-select-' + fieldName); const displayFlag = document.querySelector('#flag-display-' + fieldName); if (!dropdown || !displayFlag) { return; } const smsPhoneData = window.MC?.smsPhoneData; if (smsPhoneData && smsPhoneData.programs && Array.isArray(smsPhoneData.programs)) { dropdown.innerHTML = generateDropdownOptions(smsPhoneData.programs); } const defaultProgram = getDefaultCountryProgram(smsPhoneData?.defaultCountryCode, smsPhoneData?.programs); if (defaultProgram && defaultProgram.countryCode) { dropdown.value = defaultProgram.countryCode; const flagSpan = displayFlag?.querySelector('#flag-emoji-' + fieldName); if (flagSpan) { flagSpan.textContent = getCountryUnicodeFlag(defaultProgram.countryCode); flagSpan.setAttribute('aria-label', sanitizeHtml(defaultProgram.countryCode) + ' flag'); } updateSmsLegalText(defaultProgram.countryCode, fieldName); updatePlaceholder(defaultProgram.countryCode, fieldName); updateCountryCodeInstruction(defaultProgram.countryCode, fieldName); } var smsNotRequiredRemoveCountryCodeEnabled = true; var smsField = Object.values({"EMAIL":{"name":"EMAIL","label":"Email Address","helper_text":"","type":"email","required":true,"audience_field_name":"Email Address","merge_id":0,"help_text_enabled":false,"enabled":true,"order":0,"field_type":"merge"},"FNAME":{"name":"FNAME","label":"First Name","helper_text":"","type":"text","required":false,"audience_field_name":"First Name","enabled":false,"order":null,"field_type":"merge","merge_id":1},"MMERGE2":{"name":"MMERGE2","label":"Second Name","helper_text":"","type":"text","required":false,"audience_field_name":"Second Name","enabled":false,"order":null,"field_type":"merge","merge_id":2},"MMERGE3":{"name":"MMERGE3","label":"Company Name","helper_text":"","type":"text","required":false,"audience_field_name":"Company Name","enabled":false,"order":null,"field_type":"merge","merge_id":3},"MMERGE4":{"name":"MMERGE4","label":"Job Title","helper_text":"","type":"text","required":false,"audience_field_name":"Job Title","enabled":false,"order":null,"field_type":"merge","merge_id":4},"SIGNUP":{"name":"SIGNUP","label":"Signup form location","helper_text":"","type":"text","required":false,"audience_field_name":"Signup form location","enabled":false,"order":null,"field_type":"merge","merge_id":5},"MMERGE6":{"name":"MMERGE6","label":"Image URL","helper_text":"","type":"imageurl","required":false,"audience_field_name":"Image URL","enabled":false,"order":null,"field_type":"merge","merge_id":6}}).find(function(f) { return f.name === fieldName && f.type === 'smsphone'; }); var isRequired = smsField ? smsField.required : false; var shouldAppendCountryCode = smsNotRequiredRemoveCountryCodeEnabled ? isRequired : true; var phoneInput = document.querySelector('#mce-' + fieldName); if (phoneInput && defaultProgram.countryCallingCode && shouldAppendCountryCode) { phoneInput.value = defaultProgram.countryCallingCode; } displayFlag?.addEventListener('click', function(e) { dropdown.focus(); }); dropdown?.addEventListener('change', function() { const selectedCountry = this.value; if (!selectedCountry || typeof selectedCountry !== 'string') { return; } const flagSpan = displayFlag?.querySelector('#flag-emoji-' + fieldName); if (flagSpan) { flagSpan.textContent = getCountryUnicodeFlag(selectedCountry); flagSpan.setAttribute('aria-label', sanitizeHtml(selectedCountry) + ' flag'); } const selectedProgram = window.MC?.smsPhoneData?.programs.find(function(program) { return program && program.countryCode === selectedCountry; }); var smsNotRequiredRemoveCountryCodeEnabled = true; var smsField = Object.values({"EMAIL":{"name":"EMAIL","label":"Email Address","helper_text":"","type":"email","required":true,"audience_field_name":"Email Address","merge_id":0,"help_text_enabled":false,"enabled":true,"order":0,"field_type":"merge"},"FNAME":{"name":"FNAME","label":"First Name","helper_text":"","type":"text","required":false,"audience_field_name":"First Name","enabled":false,"order":null,"field_type":"merge","merge_id":1},"MMERGE2":{"name":"MMERGE2","label":"Second Name","helper_text":"","type":"text","required":false,"audience_field_name":"Second Name","enabled":false,"order":null,"field_type":"merge","merge_id":2},"MMERGE3":{"name":"MMERGE3","label":"Company Name","helper_text":"","type":"text","required":false,"audience_field_name":"Company Name","enabled":false,"order":null,"field_type":"merge","merge_id":3},"MMERGE4":{"name":"MMERGE4","label":"Job Title","helper_text":"","type":"text","required":false,"audience_field_name":"Job Title","enabled":false,"order":null,"field_type":"merge","merge_id":4},"SIGNUP":{"name":"SIGNUP","label":"Signup form location","helper_text":"","type":"text","required":false,"audience_field_name":"Signup form location","enabled":false,"order":null,"field_type":"merge","merge_id":5},"MMERGE6":{"name":"MMERGE6","label":"Image URL","helper_text":"","type":"imageurl","required":false,"audience_field_name":"Image URL","enabled":false,"order":null,"field_type":"merge","merge_id":6}}).find(function(f) { return f.name === fieldName && f.type === 'smsphone'; }); var isRequired = smsField ? smsField.required : false; var shouldAppendCountryCode = smsNotRequiredRemoveCountryCodeEnabled ? isRequired : true; var phoneInput = document.querySelector('#mce-' + fieldName); if (phoneInput && selectedProgram.countryCallingCode && shouldAppendCountryCode) { phoneInput.value = selectedProgram.countryCallingCode; } updateSmsLegalText(selectedCountry, fieldName); updatePlaceholder(selectedCountry, fieldName); updateCountryCodeInstruction(selectedCountry, fieldName); }); } document.addEventListener('DOMContentLoaded', function() { const smsPhoneFields = document.querySelectorAll('[id^="country-select-"]'); smsPhoneFields.forEach(function(dropdown) { const fieldName = dropdown?.id.replace('country-select-', ''); initializeSmsPhoneDropdown(fieldName); }); });

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