README

A package encapsulating Just In Time Messages.

Just In Time Messages (JITMs) are real-time contextual in-admin notices. Such notices are displayed on specific admin pages, based on multiple parameters (page visited, Jetpack connection status, plan status, features active, ...).

There are 2 main ways to use JITMs:

You can create static notices within the Jetpack plugin. Those will be displayed before the site is connected to WordPress.com. See Pre_Connection_JITM to find out more.
You can create dynamic notices once the Jetpack plugin is connected to WordPress.com. Those notices will be pulled from WordPress.com depending on the parameters mentioned above. See Post_Connection_JITM to find out more.

Usage

Using the Config Package

The JITMs can be enabled using the Config package:

use Automattic/Jetpack/Config;

// Configuring as early as plugins_loaded priority 1
// to make sure every action handler gets properly set.
add_action( 'plugins_loaded', 'configure_jitm', 1 );

function configure_jitm() {
    $config = new Config();
    $config->ensure( 'jitm' );
}

Directly Using the JITM Package

The JITMs can also be enabled by using the JITM package directly:

Automattic\Jetpack\JITMS\JITM::configure();

Where the JITM will be displayed

JITMs can be shown on any admin page that has the <div id="jp-admin-notices" /> element within the dom, as it's where the messages are injected. You may need to add or adjust this element to fit in your plugin.

Adding Pre-Connection JITMs

Plugins can add pre-connection JITMs uisng the jetpack_pre_connection_jitms filter. Each JITM message must be an array and must contain the following keys:

id
message_path
message
description
button_link
button_caption

If a JITM is missing one of the above keys, the JITM will not be displayed.

The JITM message array may also contain the following optional keys:

icon - When the 'icon' key does not exist, the Jetpack icon is used by default. The available settings for this option are:
- 'jetpack' for the Jetpack icon.
- 'woocommerce' for the WooCommerce icon.
- An empty string for no icon.

The Jetpack plugin's pre-connection JITMs can be found in the Jetpack_Pre_Connection_JITMs class.

Example

function add_preconnection_jitms( $messages ) {
    $example_jitm = array(
		'id'             => 'example-jitm',
		'message_path'   => '/wp:plugins:admin_notices/',
		'message'        => __( 'An example message.', 'jetpack' ),
		'description'    => __( 'An example description.', 'jetpack' ),
		'button_link'    => 'https://example.com/path',
		'button_caption' => __( 'Example button text', 'jetpack' ),
    );

    if ( ! is_array( $messages ) ) {
		return array( $example_jitm );
    }

    return array_merge( $messages, array( $example_jitm ) );
 }

 add_filter( 'jetpack_pre_connection_jitms', 'add_preconnection_jitms' );

automattic / jetpack-jitm

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