axyz-post-gallery

axyz-post-gallery.php

<?php

   /*
   Plugin Name: WP Post Gallery
   Version: 0.1
   Author: Andrea Moretti (@axyz)
   Author URI: http://github.com/axyz
   License: GPL2
    */

function post_gallery_shortcode($atts) {

  // Attributes
  extract(shortcode_atts(
    array(
      'id' => '',
      'class' => ''
    ), $atts)
  );

  // Code
  if (isset($id)) {
    $class = (isset($class))? $class : "";
    $gallery = get_post_gallery_images($id);
    $element = "<div id='axyz-post-gallery-$id' class='axyz-post-gallery $class'>";
    foreach ($gallery as $img) {
      $element .= "<div class='axyz-post-gallery-item'><img src='$img'></div>";
    }
    $element .= "</div>";
    return $element;
  }

}
add_shortcode('post-gallery', 'post_gallery_shortcode');

functions.php

<?php

add_action('wp_footer', 'gfwsp_footer_scripts');

if (!function_exists('gfwsp_footer_scripts')) {
  function gfwsp_footer_scripts()
  {
    wp_enqueue_script('gfwsp-masonry',
      get_stylesheet_directory_uri() . '/node_modules/masonry-layout/dist/masonry.pkgd.min.js',
      array('jquery'));

    wp_enqueue_script('gfwsp-init',
      get_stylesheet_directory_uri() . '/init.js',
      array('gfwsp-masonry'));
  }
}

init.js

(function($, Masonry, undefined) {
  "use strict";

  $(function () {
    var msnry = new Masonry('.axyz-post-gallery', {
      columnWidth: 1,
      itemSelector: '.axyz-post-gallery-item',
      transitionDuration: 0
    });
  });

})(jQuery, Masonry)

style.css

/**********************
 * MASONRY GALLERY    *
 *********************/
.masonry .axyz-post-gallery-item {
  width: 19%;
  margin-left: 10px;
  margin-bottom: 10px;
  webkit-box-shadow: 0 1px 3px rgba(34, 25, 25, 0.7);
  moz-box-shadow: 0 1px 3px rgba(34, 25, 25, 0.7);
  box-shadow: 0 1px 3px rgba(34, 25, 25, 0.7);
  line-height: 0px;
}

.masonry.axyz-post-gallery {
  margin: 0 0 0 25px;
  padding: 0;
}

@media (min-width:1680px) and (max-width:1920) {
  .masonry.axyz-post-gallery {
    margin: 0 0 0 20px;
  }
}

@media (min-width:1460px) and (max-width:1680px) {
  .masonry.axyz-post-gallery {
    margin: 0 0 0 15px;
  }
}

@media (min-width:980px) and (max-width:1460px) {
  .masonry .axyz-post-gallery-item {
    width: 24%;
  }
  .msaonry.axyz-post-gallery {
    margin: 0 0 0 0px;
  }
}

@media (min-width:979px) and (max-width:1200px) {
  .masonry.axyz-post-gallery {
    margin: 0 0 0 -2px;
  }
}

@media (min-width:768px) and (max-width:979px) {
  .masonry .axyz-post-gallery-item {
    width: 32%;
  }
  .masonry.axyz-post-gallery {
    margin: 0 0 0 -5px;
  }
}

@media handheld,only screen and (max-width:767px) {
  .masonry .axyz-post-gallery-item {
    width: 46%;
  }
  .masonry.axyz-post-gallery {
    margin: 0 0 0 13px;
  }
}

@media handheld,only screen and (max-width:480px) {
  .masonry .axyz-post-gallery-item {
    width: 100%;
  }
  .msaonry.axyz-post-gallery {
    margin: 0 0 0 -10px;
  }
}
/***********************
 * END MASONRY GALLERY *
 **********************/


/****************
 * GRID GALLERY *
 ***************/
.grid .axyz-post-gallery {
  margin: 35px 0 0 0;
  padding: 0;
  list-style: none;
  position: relative;
  width: 100%;
}

.grid .axyz-post-gallery-item {
  position: relative;
  float: left;
  overflow: hidden;
  width: 25%; /* Fallback */
  width: -webkit-calc(100% / 4);
  width: calc(100% / 4);
}

.grid .axyz-post-gallery-item img {
  display: block;
  width: 100%;
  cursor: pointer;
}

.grid .axyz-post-gallery-item img {
  max-width: 100%;
}

/* Flexbox is used for centering the heading */
.grid .axyz-post-gallery-item div {
  position: absolute;
  left: 20px;
  top: 20px;
  right: 20px;
  bottom: 20px;
  background: rgba(71,163,218,0.2);
  display: -webkit-flex;
  display: -moz-flex;
  display: -ms-flex;
  display: flex;
  -webkit-align-items: center;
  -moz-align-items: center;
  -ms-align-items: center;
  align-items: center;
  text-align: center;
  opacity: 0;
}


@media screen and (max-width: 767px) {
  .grid .axyz-post-gallery-item {
    width: 50%; /* Fallback */
    width: -webkit-calc(100% / 2);
    width: calc(100% / 2);
  }
}

@media screen and (max-width: 480px) {
  .grid .axyz-post-gallery-item {
    width: 100%;
  }
}
/********************
 * END GRID GALLERY *
 *******************/