Flickr Photostream

<?php
/*
Plugin Name: Flickr Photostream
Plugin URI: http://miromannino.it/projects/flickr-photostream/
Description: Shows the flickr photostream
Version: 1.5
Author: Miro Mannino
Author URI: http://miromannino.it/about-me/

Copyright 2012 Miro Mannino (miro.mannino@gmail.com)
thanks to Dan Coulter for phpFlickr Class (dan@dancoulter.com)

This file is part of Flickr Photostream.

Flickr Photostream is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later version.

Flickr Photostream 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.  See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with Flickr
Photostream Wordpress Plugin.  If not, see <http://www.gnu.org/licenses/>.
*/

//Add the link to the plugin page
add_filter('plugin_action_links_' . plugin_basename(__FILE__), 'flickrps_plugin_settings_link' );
function flickrps_plugin_settings_link($links) {
  $settings_link = '<a href="options-general.php?page=flickrps.php">Settings</a>';
  array_unshift($links, $settings_link);
  return $links;
}

//Activation hook, we check that the upload dir is writable
register_activation_hook( __FILE__ , 'flickrps_plugin_activate');
if(!function_exists( 'flickrps_plugin_uninstall')){
    function flickrps_plugin_activate(){
        $upload_dir = wp_upload_dir();
        @mkdir($upload_dir['basedir'].'/phpFlickrCache');
        if(!is_writable($upload_dir['basedir'].'/phpFlickrCache')){
            deactivate_plugins(basename(__FILE__)); // Deactivate ourself
            wp_die(__('Flickr Photostream can\'t be activated: the cache Folder is not writable', 'flickr-photostream')
                . ' (' . $upload_dir['basedir'] .'/phpFlickrCache' . ')'
            );
        }
    }
}

//Add the language and the permalink
add_action('init', 'flickrps_init');
function flickrps_init() {
    /* languages */
    load_plugin_textdomain('flickr-photostream', false, dirname(plugin_basename( __FILE__ )) . '/languages/');
}

//Add the vars so that WP recognizes it
add_filter('query_vars','flickrps_insert_query_vars');
function flickrps_insert_query_vars( $vars ) {
    array_push($vars, 'flickrpsp');
    return $vars;
}

//Register with hook 'wp_enqueue_scripts' which can be used for front end CSS and JavaScript
add_action('wp_enqueue_scripts', 'addFlickrPhotostreamCSSandJS');
function addFlickrPhotostreamCSSandJS() {
    wp_register_style('flickrPsCSS', plugins_url('css/flickr-photostream.css', __FILE__));
    wp_register_style('justifiedGalleryCSS', plugins_url('justifiedgallery/css/jquery.justifiedgallery.css', __FILE__));
    wp_register_script('justifiedGalleryJS', plugins_url('justifiedgallery/js/jquery.justifiedgallery-min.js', __FILE__));
    wp_enqueue_style('flickrPsCSS');
    wp_enqueue_style('justifiedGalleryCSS');
    wp_enqueue_script('jquery');
    wp_enqueue_script('justifiedGalleryJS');
}

add_action('parse_request', 'addFlickrPhotostreamURL');
function addFlickrPhotostreamURL() {
    global $flickrpsp;

    // Manually parse the URL request
    if (!empty($_SERVER['REQUEST_URI'])) {
        $urlvars = explode('/', $_SERVER['REQUEST_URI']);
    }

    var_dump($_SERVER['REQUEST_URI']);

    // Check for querystring variables
    if ((!empty($urlvars[1])) && (!empty($urlvars[2]))) {
        $_REQUEST['page'] = $urlvars[1];
        $_REQUEST['flickrpsp'] = $urlvars[2];

        $flickrpsp = $urlvars[2];
        }

        // ... handle multiple types of URL by checking $urlvars[1] here
}

//[flickrps] shortcode
function flickr_photostream( $atts, $content = null ) {
    static $shortcode_unique_id = 0;
    $ris = "";

    require_once("phpFlickr/phpFlickr.php");

    //Page---------
    $permalink = get_permalink();

    //if (strpos($permalink,'?') === false) $permalink .= '?'; else $permalink .= '&';
    global $flickrpsp;
    if(empty($flickrpsp)){ //we use local instance of flickrpsp for the multiple instances
        $l_flickrpsp = 1;
    }else{
        $l_flickrpsp = $flickrpsp;
    }

    //Options-----------------------
    extract( shortcode_atts( array(
        'user_id' => get_option('$flickr_photostream_userID'), // Flickr User ID
        'images_height' => get_option('$flickr_photostream_imagesHeight'), // Flickr images size
        'max_num_photos' => get_option('$flickr_photostream_maxPhotosPP'), // Max number of Photos
        'justify_last_row' => (get_option('$flickr_photostream_justifyLastRow') == 1 ? 'true' : 'false'),
        'fixed_height' => (get_option('$flickr_photostream_fixedHeight') == 1 ? 'true' : 'false'),
        'lightbox' => (get_option('$flickr_photostream_lightbox') == 1 ? 'true' : 'false'),
        'captions' => (get_option('$flickr_photostream_captions') == 1 ? 'true' : 'false'),
        'no_pages' => (get_option('$flickr_photostream_noPages') == 1 ? 'true' : 'false'),
        'margins' => get_option('$flickr_photostream_margins'),
    ), $atts ) );

    $images_height = (int)$images_height;
    if($images_height < 30) $images_height = 30;

    $max_num_photos = (int)$max_num_photos;
    if ($max_num_photos < 1) $max_num_photos = 1;

    $justify_last_row = (strcmp($justify_last_row, 'true') == 0)? TRUE : FALSE;

    $fixed_height = (strcmp($fixed_height, 'true') == 0)? TRUE : FALSE;

    $lightbox = (strcmp($lightbox, 'true') == 0)? TRUE : FALSE;

    $captions = (strcmp($captions, 'true') == 0)? TRUE : FALSE;

    $margins = (int)$margins;
    if ($margins < 0) $margins = 1;
    if ($margins > 30) $margins = 30;

    $no_pages = (strcmp($no_pages, 'true') == 0) ? TRUE : FALSE;
    if($no_pages) $l_flickrpsp = 1;
    //-----------------------------

    //Inizialization---------------
    $flickrAPIKey = get_option('$flickr_photostream_APIKey'); //Flickr API Key

    $f = new phpFlickr($flickrAPIKey);
    $upload_dir = wp_upload_dir();
    $f->enableCache("fs", $upload_dir['basedir']."/phpFlickrCache");

    //Errors-----------------------
    if($f->test_echo() == false){
        return('<div style="color:red">' . __('Invalid Flickr API Key', 'flickr-photostream') . '</div>');
    }

    if($f->urls_getUserProfile($user_id) == false){
        return('<div style="color:red">' . __('The user not exists', 'flickr-photostream') . '</div>');
    }

    //Photo loading----------------
    $photos_url = $f->urls_getUserPhotos($user_id);
    $photos = $f->people_getPublicPhotos($user_id, NULL, "description", $max_num_photos, $l_flickrpsp);
    if(count((array)$photos['photos']['photo']) == 0) return(__('No photos', 'flickr-photostream'));

    //we calculate that the aspect ratio has an average of 4:3
    if($images_height <= 75){
        $imgSize = "thumbnail"; //thumbnail (longest side:100)
        $usedSuffix = "lt100";
    }else if($images_height <= 180){
        $imgSize = "small"; //small (longest side:240)
        $usedSuffix = "lt240";
    }else{ //if <= 240
        $imgSize = "small_320"; //small (longest side:320)
        $usedSuffix = "lt320";
    }

    /*$ris .= '<!-- Flickr Photostream by Miro Mannino -->' . "\n"
         .  '<div class="justifiedGallery"'
         .  ' data-row-height="' . $images_height . '"'
         .  ' data-justify-last-row="' . ($justify_last_row ? 'true' : 'false') . '"'
         .  ' data-fixed-height="' . ($fixed_height ? 'true' : 'false') . '"'
         .  ' data-lightbox="' . ($lightbox ? 'true' : 'false') . '"'
         .  ' data-captions="' . ($captions ? 'true' : 'false') . '"'
         .  ' data-margins="' . $margins . '"'
         .  ' data-used-suffix="' . $usedSuffix . '" >';
    */

    $ris .= '<!-- Flickr Photostream by Miro Mannino -->' . "\n"
         .  '<div id="flickrPhotostream-' . $shortcode_unique_id . '" >';

    $r = 0;

    foreach ((array)$photos['photos']['photo'] as $photo) {
        if($lightbox){
            $ris .=
                '<a href="' . $f->buildPhotoURL($photo, "large") . '" title="' . $photo[title] . '">';
        }else{
            $ris .=
                '<a href="' . $photos_url . $photo[id] . '/in/photostream/lightbox/" target="_blank" title="' . $photo[title] . '">';
        }

        $ris .= '<img alt="' . $photo[title] . '" src="' . $f->buildPhotoURL($photo, $imgSize) . '" />'
             .  '</a>';

    }

    $ris .= '</div>'
         .  '<script type="text/javascript">'
         .  'jQuery("#flickrPhotostream-' . $shortcode_unique_id . '").justifiedGallery({'
         .  '\'usedSuffix\':\'' . $usedSuffix . '\', '
         .  '\'justifyLastRow\':' . ($justify_last_row ? 'true' : 'false') . ', '
         .  '\'rowHeight\':' . $images_height . ', '
         .  '\'fixedHeight\':' . ($fixed_height ? 'true' : 'false') . ', '
         .  '\'lightbox\':' . ($lightbox ? 'true' : 'false') . ', '
         .  '\'captions\':' . ($captions ? 'true' : 'false') . ', '
         .  '\'margins\':' . $margins
         .  '});'
         .  '</script>';


    //Navigation---------------------
    if(!$no_pages){

        $nextPhotos = $f->people_getPublicPhotos($user_id, NULL, "description", $max_num_photos, $l_flickrpsp + 1);
        if(sizeof($nextPhotos['photos']['photo']) > 0 || $l_flickrpsp > 1){
            $ris .= '<div class="page-link">';
        }

        if(sizeof($nextPhotos['photos']['photo']) > 0){
            $ris .=
              '<div class="nav-flickrps-next">'
            . '<a href="' . $permalink . 'page/' . ((int)$l_flickrpsp + 1) . '">' . __('<span class="meta-nav">&larr;</span> Older photos', 'flickr-photostream') . '</a>'
            . '</div>';
        }

        if($l_flickrpsp > 1){
            $ris .=
              '<div class="nav-flickrps-prev">'
            . '<a href="' . $permalink. 'page/' . ((int)$l_flickrpsp - 1) . '">' . __('Newer photos <span class="meta-nav">&rarr;</span>', 'flickr-photostream') . '</a>'
            . '</div>';
        }

        if(sizeof($nextPhotos['photos']['photo']) > 0 || $l_flickrpsp > 1){
            $ris .= '</div>';
        }
    }

    $shortcode_unique_id++;
    return($ris);
}
add_shortcode('flickrps', 'flickr_photostream');

//Options
include("flickr-photostream-setting.php");

?>