README.md

<pwa-install>

New to PWAs? Unsure how to create a Web App? Check out these resources for a quick start: PWA Intro, PWA Starter, PWA Builder

Installation dialog for Progressive Web Application (PWA) and Add to Home Screen/Dock dialog for Web Apps. This offers an enhanced user experience and addresses the absence of native dialogs in certain browsers. 20kB brotli compressed bundle. Translation/localization is supported.

Use it as Web Component with any modern framework. No polyfill is required.

• React <= 18 sample
• Angular sample
• Svelte

⚡Should work with any other modern framework or just vanila js as web component.

Demo

Gallery

iOS default	Install instruction	App gallery

MacOS 14+ (Sonoma)	Install instruction

iPadOS

Android	App gallery	Light theme

Chrome	App Gallery

Install

npm i @khmyznikov/pwa-install

Alternatively, you can use unpkg or esm.sh.

Import

import '@khmyznikov/pwa-install';

TS Config

"compilerOptions": {
  "moduleResolution": "Bundler",
  "types": ["dom-chromium-installation-events", "web-app-manifest"]
}

Use

<pwa-install></pwa-install>

React <= 18 polyfill

Demo

Supported params

<pwa-install
  manual-apple="true"
  manual-chrome="true"
  disable-chrome="true"
  disable-close="true"
  use-local-storage="true"

  install-description="Custom call to install text"
  disable-install-description="true"
  disable-screenshots="true"
  disable-screenshots-apple="true"
  disable-screenshots-chrome="true"

  manifest-url="/manifest.json"
  name="PWA"
  description="Progressive web application"         
  icon="/icon.png">
</pwa-install>
<!-- 
  manual-apple/chrome params means you want to show the Dialog manually by showDialog().
  disable-chrome param is for completely disabling custom logic and interception for Chromium browsers (will work built-in browser logic).
  use-local-storage will store the user's preference to ignore the prompt in long-lived storage (so they will not be prompted again unless they clear application data)
--->

Make a good manifest file and don't use name/descr/icon params. Boolean attributes needs to be removed to act like "false"

Supported events

• pwa-install-success-event
• pwa-install-fail-event
• pwa-install-available-event
• pwa-user-choice-result-event
• pwa-install-how-to-event
• pwa-install-gallery-event

<script type="text/javascript">
  var pwaInstall = document.getElementsByTagName('pwa-install')[0];

  pwaInstall.addEventListener('pwa-install-success-event', (event) => {console.log(event.detail.message)});
</script>

⚠️ success/fail/choice events is Chromium only, iOS don't have them.

Supported properties (readonly)

• userChoiceResult: string;
• isDialogHidden: boolean
• isInstallAvailable: boolean
• isAppleMobilePlatform: boolean
• isAppleDesktopPlatform: boolean
• isUnderStandaloneMode: boolean
• isRelatedAppsInstalled: boolean

<script type="text/javascript">
  var pwaInstall = document.getElementsByTagName('pwa-install')[0];

  console.log(pwaInstall.isUnderStandaloneMode);
</script>

Supported methods

• install
• hideDialog
• showDialog
• getInstalledRelatedApps: async

<script type="text/javascript">
  var pwaInstall = document.getElementsByTagName('pwa-install')[0];

  pwaInstall.install();
</script>

getInstalledRelatedApps is Chromium only, always empty on iOS.

Async mode

If you need to target Chromium browsers but you want to postpone component mounting, you can do it! But, need to capture beforeinstallprompt manually and pass it to the component's externalPromptEvent property(not attribute).

// capture event asap, better right in index.html script tag
window.addEventListener('beforeinstallprompt', (e) => {
  e.preventDefault();
  e.stopPropagation();
  e.stopImmediatePropagation();

  // save it somewhere
  window.promptEvent = e;
});

// later render the component on demand and pass event
document.getElementById("pwa-install").externalPromptEvent = window.promptEvent;

Supported localization

Translations available:

• EN
• RU
• TR
• DE
• ES
• NL
• EL
• FR
• SR
• PL
• ZH-CN/ZH-HK
• IT
• UK
• CS
• NO/NB
• PT
• JA
• SV
• KO
• KM
• DA

Language should change automatically based on browser settings. Please create the pull-request if you want to help with translation to your language. It's an easy process.

Contribution Guidelines

ROADMAP

• samsung mobile support
• mozilla mobile support
• manual theme

Backers ❤️

Patrick Voigt
Darren Debono
Angelo Fan
Chris Cherniakov
Leek Duck