PWA Install Prompt

Prompt users to add your PWA to their home screen, since Apple won’t.

By default, this module checks if the user has not visited the site before, or if the last time they visited the site was more than 90 days ago, and if they are using iOS. If all conditions are met, then the prompt is shown. The conditions that get checked can be overridden in order to use this prompt for custom scenarios.

Inspired by Scott Batson @ DockYard

Demo

https://jacobdb.github.io/pwa-install-prompt/demo/

Installation

via npm

npm install pwa-install-prompt --save

via yarn

yarn add pwa-install-prompt

Usage

import pwaInstallPrompt from "pwa-install-prompt";

new pwaInstallPrompt(".pwa-install-prompt__container", {
    active_class: "is-active",
    closer: ".pwa-install-prompt__overlay",
    condition: null,
    expires: 180,
    show_after: 90,
    on: {
        beforeOpen: function () {
            console.log("before open!");
        },
        afterOpen: function () {
            console.log("after open!");
        },
        beforeClose: function () {
            console.log("before close!");
        },
        afterClose: function () {
            console.log("after close!");
        },
    }
});

Default Markup

<div class="pwa-install-prompt__container">
    <button class="pwa-install-prompt__overlay">Close</button>
    <div class="pwa-install-prompt">
        <div class="pwa-install-prompt__icon__container">
            <img class="pwa-install-prompt__icon" src="/path/to/icon/file.png" alt="{app_name}" />
        </div>
        <div class="pwa-install-prompt__content">
            <h3 class="pwa-install-prompt__title">Install {app_name}</h3>
            <p class="pwa-install-prompt__text">Install this application on your home screen for quick and easy access when you’re on the go.</p>
            <p class="pwa-install-prompt__guide">Just tap <svg class="pwa-install-prompt__guide__icon" viewBox="0 0 128 128" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><title>Share</title><path fill="#007AFF" d="M48.883,22.992L61.146,10.677L61.146,78.282C61.146,80.005 62.285,81.149 64,81.149C65.715,81.149 66.854,80.005 66.854,78.282L66.854,10.677L79.117,22.992C79.693,23.57 80.256,23.853 81.114,23.853C81.971,23.853 82.534,23.57 83.11,22.992C84.25,21.848 84.25,20.125 83.11,18.981L65.997,1.794C65.715,1.511 65.421,1.215 65.139,1.215C64.563,0.932 63.718,0.932 62.861,1.215C62.579,1.498 62.285,1.498 62.003,1.794L44.89,18.981C43.75,20.125 43.75,21.848 44.89,22.992C46.029,24.149 47.744,24.149 48.883,22.992ZM103.936,35.32L81.114,35.32L81.114,41.053L103.936,41.053L103.936,121.27L24.064,121.27L24.064,41.053L46.886,41.053L46.886,35.32L24.064,35.32C20.928,35.32 18.355,37.904 18.355,41.053L18.355,121.27C18.355,124.419 20.928,127.003 24.064,127.003L103.936,127.003C107.072,127.003 109.645,124.419 109.645,121.27L109.645,41.053C109.645,37.891 107.072,35.32 103.936,35.32Z" /></svg> then “Add to Home Screen”</p>
        </div>
    </div>
</div>

Options

Option	Type	Default	Description
active_class	string	is-active	Class name to be added when the prompt is visible
closer	string	.pwa-install-prompt__overlay	Query selector to target to handle closing the prompt
condition	function	null	Set a custom condition to determine when to show the prompt
expires	number	180	Number of days before the last_visit cookie expires
show_after	number	90	Number of days to wait before showing the prompt again
on	object	null	Register event handlers

Events

Events can be assigned in two ways:

1. Using on parameter on PWA Install Prompt initialization:

    var prompt = new pwaInstallPrompt(".pwa-install-prompt__container", {
        // ...
        on: {
            open: function () {
                console.log("prompt opened!");
            },
        },
    });
   

2. Using on method after PWA Install Prompt initialization.

    var prompt = new pwaInstallPrompt(".pwa-install-prompt__container", {
        // ...
    });
   
    prompt.on("open", function () {
        console.log("prompt opened!");
    });
   

Name	Description
beforeOpen	Event will be fired right before prompt is opened
afterOpen	Event will be fired right after prompt is opened
beforeClose	Event will be fired right before prompt is closed
afterClose	Event will be fired right after prompt is closed

Contributors

• Jacob Bearce – Commits
• Sergio Arbeo – Commits