Air Reactions

A developer-friendly WordPress-plugin for adding customizable reactions (likes, hearts, dislikes, shrugs or whatever you feel like) to your content.

Usage

Basic usage

Use shortcode [air-reactions] in your content or call hook air_reactions_display on your template file

do_action( 'air_reactions_display', [] );

It will echo the reaction container with default buttons where called. You can specify the reaction types using 'air_reactions_types' filter.

Advanced usage

Available parameters are:

  [
    'echo'    => (bool),
    'types'   => (array),
    'post_id' => (int),
  ]

Example:

This will return the markup for reacting the post id '5' with only hearts

do_action(
  'air_reactions_display',
  [
    'echo' => false,
    'post_id' => 5,
    'types' => [ 'heart' ],
  ]
)

Same as a shortcode (echoing is always disabled in shortcode):

[air-reactions types="heart" post_id="5"]

Usage in comments

Prefix comment id with comment- to enable reaction for a comment

do_action(
  'air_reactions_display',
  [ 'post_id' => 'comment-' . $comment->comment_ID, ]
)

Hooks

Load default styles

Set false to not load reaction styles from plugin, if you are going to write them in your theme

Default: true

add_filter( 'air_reactions_load_default_styles', '__return_false' );

Set allowed post types

Liking is allowed only on these post types.

Default: [ 'post', 'page', 'comment' ]

add_filter( 'air_reactions_post_types', function( (array) $post_types ) {
  return [ 'post', 'page' ];
} );

Allow only registered users to react

By default, reactions will be saved to user meta to allow users to react once per post. If this is set to false, use localstorage and FingerprintJS to set browser fingerprints to reaction events and save the reactions to the posts only.

Default: true

add_filter( 'air_reactions_require_login', function( (bool) $require_login ) {
  return true;
} );

Set capability for reacting posts

You can use any capability recognized by current_user_can() function

Default: read

add_filter( 'air_reactions_capability', function( (string) $capability ) {
  return 'read';
} );

Filter post reactions after they are loaded from meta and counted

add_filter( 'air_reactions_count_post_reactions', function( (array) $post_reactions, (int) $post_id, (string) $meta_key ) {
  // Do something
  return $post_reactions;
} )

Set default reaction types

Default:

[
  'heart' => [
    'icon_path' => plugin_dir_path( __DIR__ ) . 'svg/heart.svg',
    'texts'     => [
      'reaction'   => __( 'Love this post', 'air-reactions' ),
      'amount_pre' => __( 'Loved', 'air-reactions' ),
      'amount_post' => __( 'times', 'air-reactions' ),
    ],
  ],
  'like' => [
    'icon_path' => plugin_dir_path( __DIR__ ) . 'svg/thumbs-up.svg',
    'texts'     => [
      'reaction'   => __( 'Like this post', 'air-reactions' ),
      'amount_pre' => __( 'Liked', 'air-reactions' ),
      'amount_post' => __( 'times', 'air-reactions' ),
    ],
  ],
  'dislike' => [
    'icon_path' => plugin_dir_path( __DIR__ ) . 'svg/thumbs-down.svg',
    'texts'     => [
      'reaction'   => __( 'Dislike this post', 'air-reactions' ),
      'amount_pre' => __( 'Disliked', 'air-reactions' ),
      'amount_post' => __( 'times', 'air-reactions' ),
    ],
  ],
]

Example:

add_filter( 'air_reactions_types', function( (array) $default_types ) {
  return [
    'heart' => [
      'icon_path' => get_theme_file_path( 'svg/heart.svg' ),
      'texts'     => [
        'reaction'   => 'Love this post',
        'amount_pre' => 'Loved',
        'amount_post' => 'times',
      ],
    ],
  ];
});

Modify reaction item markup

You can use this to build your own reaction item, just remember to add data-attributes like in the original, the javascript depends entirely on those. Feel free to modify the structure and classes etc.

add_filter( 'air_reactions_reaction_item', function( (string) $output, (string) $key, (array) $item ) {
  // Do something
  return $output;
});

Modify container start and end markup

You can change the markup or add wrapper etc. Just remember to add data-attributes like in the original, the javascript depends entirely on those.

add_filter( 'air_reactions_container_start', function( (string) $output, (array) $args, (bool), (int) $current_user_id ) {
  // Do something
  return $output;
});

add_filter( 'air_reactions_container_start', function( (string) $output, (array) $args, (bool), (int) $current_user_id ) {
  // Do something
  return $output;
});

Customize message shown to non-logged in users when login is required

add_filter( 'air_reactions_login_required_message', function() {
  return 'Login to like this';
});

JavaScript functionality

Reaction items are queried from DOM and initialized once after page has loaded. You can check for new reaction items, for example after loading content from AJAX, by simply triggering the event initAirReactions.

const event = new Event('initAirReactions');
window.dispatchEvent(event);