Media Filter WordPress Plugin

media-filter.php

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+<?php
+/**
+ * Plugin Name: Media Filter
+ * Plugin URI: http://foxnet.fi/en
+ * Description: Media Filter adds image width and height, clickable author link and 'mine' link in Media Library (upload.php).
+ * Version: 0.1
+ * Author: Sami Keijonen
+ * Author URI: http://foxnet.fi/en
+ * Contributors: samikeijonen
+ * Thanks: Justin Tadlock
+ *
+ * This program is free software; you can redistribute it and/or modify it under the terms of the GNU 
+ * General Public License version 2, as published by the Free Software Foundation.  You may NOT assume 
+ * that you can use any other version of the GPL.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
+ * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * @package MediaFilter
+ * @version 0.1
+ * @author Sami Keijonen <sami.keijonen@foxnet.fi>
+ * @copyright Copyright (c) 2012, Sami Keijonen
+ * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ */
+
+/* Set up the plugin on the 'plugins_loaded' hook. */
+add_action( 'plugins_loaded', 'media_filter_setup' );
+
+/**
+ * Plugin setup function.  Loads actions and filters to their appropriate hook.
+ *
+ * @since 0.1.0
+ */
+function media_filter_setup() {
+
+if( is_admin() ) {
+
+	// Add Sortable Width and Height Columns to the Media Library
+	add_filter( 'manage_media_columns', 'media_filter_columns_register' );
+	add_filter( 'manage_media_custom_column', 'media_filter_columns_display', 10, 2 );
+	add_filter( 'manage_upload_sortable_columns', 'media_filter_columns_sortable' );
+
+	// Add pdf mime type  
+	add_filter( 'post_mime_types', 'media_filter_post_mime_types' );
+
+	// Add 'mine' media
+	add_filter( 'views_upload', 'media_filter_upload_views_filterable' );
+
+	}
+
+}
+
+/*
+ * Adding Width and Height columns
+ *
+ * @since 0.1.0
+ */
+function media_filter_columns_register( $columns ) {
+
+	/* Add colums in media (upload.php). */
+	$columns['my-author'] = __( 'Author', 'media-filter' );
+	$columns['width'] = __( 'Width', 'media-filter' );
+	$columns['height'] = __( 'Height', 'media-filter' );
+	$date = $columns['date'];
+	$comments = $columns['comments'];
+	unset( $columns['date'] );
+	unset( $columns['comments'] );
+	$columns['comments'] = $comments; // make this column after author, width and height
+	$columns['date'] = $date; // make this column after comments
+
+	/* Remove original author. */
+	unset( $columns['author'] );
+
+	return $columns;
+
+}
+
+
+/*
+ * Display the columns
+ *
+ * @since 0.1.0
+ */
+function media_filter_columns_display( $column_name, $post ) {
+
+	/* Get metainfo from image. */
+	$meta = wp_get_attachment_metadata( get_the_ID() );
+
+	switch( $column_name ) {
+
+		/* If displaying the 'width' column. */
+		case 'width' :
+
+			if ( !empty( $meta['width'] ) )
+				echo $meta['width'];
+			else
+				echo __( '&nbsp;', 'media-filter' );
+
+			break;
+
+		/* If displaying the 'height' column. */
+		case 'height' :
+
+		if ( !empty( $meta['height'] ) )	
+			echo $meta['height'];
+		else
+			echo __( '&nbsp;', 'media-filter' );
+
+			break;
+
+		/* If displaying the 'my-author' column. */
+		case 'my-author' :
+
+		printf( '<a href="%s">%s</a>',
+			esc_url( add_query_arg( array( 'author' => get_the_author_meta( 'ID' ) ), 'upload.php' )),
+			get_the_author()
+		);
+
+			break;
+
+		/* Just break out of the switch statement for everything else. */
+		default :
+			break;
+
+	}
+
+}
+
+/*
+ * Registering columns as sortable
+ *
+ * @since 0.1.0
+ */
+function media_filter_columns_sortable( $columns ) {
+
+    $columns['width'] = 'width';
+    $columns['height'] = 'height';
+
+    return $columns;
+
+}
+
+/*
+ * Add pdf documents in mime types.
+ *
+ * @since 0.1.0
+ */
+function media_filter_post_mime_types( $post_mime_types ) {
+
+	/* pdf is 'application/pdf'. */
+
+	$post_mime_types['application/pdf'] = array( __( 'PDFs', 'media-filter' ), __( 'Manage PDFs', 'media-filter' ), _n_noop( 'PDF <span class="count">(%s)</span>', 'PDFs <span class="count">(%s)</span>' ) );
+
+	/* Return the $post_mime_types variable. */
+	return $post_mime_types;
+
+}
+
+/*
+ * Add 'Mine' media file after mime type. Hook is views_upload.
+ *
+ * @since 0.1.0
+ */
+function media_filter_upload_views_filterable( $views ) {
+
+	//$class = ( isset( $_GET['author'] ) && $_GET['author'] == get_current_user_id() ) ? ' class="current"' : '';
+
+	if ( isset( $_GET['author'] ) && $_GET['author'] == get_current_user_id() ) {
+
+		/* Current class. */
+		$class = ' class="current"';
+
+		/* Remove 'current' class from all-link. */
+		add_action( 'admin_footer', 'media_filter_footer_scripts', 20 );
+
+	}
+	else {
+		$class = '';
+	}
+
+	$new_views = array(
+		'mine-media' => sprintf( '<a %s href="%s">%s</a>', $class, esc_url( add_query_arg( 'author', get_current_user_id(), 'upload.php' ) ), __( 'Mine', 'media-filter' ) )
+	);
+
+	return array_merge( $new_views, $views );
+
+}
+
+/*
+ * Remove 'current' class from all-link.
+ *
+ * @since 0.1.0
+ */
+function media_filter_footer_scripts() { ?>
+
+<script type="text/javascript">
+jQuery(document).ready(
+	function() {
+		jQuery( '.all a' ).removeClass('current');
+	}
+);
+</script>
+
+<?php }
+
+?>