Initial commit

Author: mustardBees

.gitignore

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+# OS or IDE folders/files to ignore
+*~
+._*
+*.lock
+*.DS_Store
+*.swp
+*.out
+.cache
+.project
+.settings
+nbproject
+thumb.db
+Thumbs.db
+
+
+# Project specific files to ignore
+*.class
+*.pyc
+*.pyo

README.md

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+# CMB Field Type: Gallery
+
+## Description
+
+Gallery field type for [Custom Metaboxes and Fields for WordPress](https://github.com/jaredatch/Custom-Metaboxes-and-Fields-for-WordPress).
+
+## Usage
+
+`pw_gallery` - Save a list of attachment IDs. Example:
+
+```php
+array(
+	'name' => 'Gallery Images',
+	'desc' => 'Upload and manage gallery images',
+	'button' => 'Manage gallery', // Optionally set button label
+	'id'   => $prefix . 'gallery_images',
+	'type' => 'pw_gallery',
+),
+```
+
+## Screenshot
+
+![Image](screenshot-1.png?raw=true)
+
+![Image](screenshot-2.png?raw=true)
+
+## To-do
+* Add a clear gallery button
+
+## Example front-end output
+
+```php
+<?php $gallery_images = get_post_meta( get_the_ID(), '_cmb_gallery_images', true ); ?>
+<?php if ( ! empty( $gallery_images ) ) : ?>
+	<ul>
+		<?php foreach ( $gallery_images as $gallery_image ) : ?>
+			<li><?php echo wp_get_attachment_image( $gallery_image, 'thumbnail' ); ?></li>
+		<?php endforeach; ?>
+	</ul>
+<?php endif; ?>
+```

cmb-field-gallery.php

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+<?php
+/*
+Plugin Name: CMB Field Type: Gallery
+Plugin URI: https://github.com/mustardBees/cmb-field-gallery
+Description: Gallery field type for Custom Metaboxes and Fields for WordPress. Thanks to <a href="http://www.purewebsolutions.nl/">Roel Obdam</a> for the hard work <a href="http://goo.gl/RYj2w">figuring out the media library</a>.
+Version: 1.0
+Author: Phil Wylie
+Author URI: http://www.philwylie.co.uk/
+License: GPLv2+
+*/
+
+// Useful global constants
+define( 'PW_GALLERY_URL', plugin_dir_url( __FILE__ ) );
+
+/**
+ * Render field
+ */
+function pw_gallery_field( $field, $meta ) {
+	wp_enqueue_script( 'pw_gallery_init', PW_GALLERY_URL . 'js/script.js', array( 'jquery' ), null );
+
+    if ( ! empty( $meta ) ) {
+		$meta = implode( ',', $meta );
+	}
+
+	echo '<div class="pw-gallery">';
+	echo '	<input type="hidden" id="' . $field['id'] . '" name="' . $field['id'] . '" value="' . $meta . '" />';
+	echo '	<input type="button" class="button" value="' . ( ! empty( $field['button'] ) ? $field['button'] : 'Manage gallery' ) . '" />';
+	echo '</div>';
+
+	if ( ! empty( $field['desc'] ) ) echo '<p class="cmb_metabox_description">' . $field['desc'] . '</p>';
+}
+add_filter( 'cmb_render_pw_gallery', 'pw_gallery_field', 10, 2 );
+
+
+/**
+ * Split CSV string into an array of values
+ */
+function pw_gallery_field_validation( $new ) {
+	if ( empty( $new ) ) {
+		$new = '';
+	} else {
+		$new = explode( ',', $new );
+	}
+
+	return $new;
+}
+add_filter( 'cmb_validate_pw_gallery', 'pw_gallery_field_validation', 10, 3 );

js/script.js

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+(function ($) {
+	$('.pw-gallery').each(function() {
+		var instance = this;
+
+		$('input[type=button]', instance).click(function() {
+			var gallerysc = '[gallery ids="' + $('input[type=hidden]', instance).val() + '"]';
+			wp.media.gallery.edit(gallerysc).on('update', function(g) {
+				var id_array = [];
+				$.each(g.models, function(id, img) { id_array.push(img.id); });
+				$('input[type=hidden]', instance).val(id_array.join(","));
+			});
+		});
+	});
+}(jQuery));