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/*

 * jQuery Flickr - jQuery plug-in

 * Version 1.0, Released 2008.04.17

 *

 * Copyright (c) 2008 Daniel MacDonald (www.projectatomic.com)

 * Dual licensed GPL http://www.gnu.org/licenses/gpl.html

 * and MIT http://www.opensource.org/licenses/mit-license.php

 */

(function($) {

$.fn.flickr = function(o){

	var s = {
		api_key: null,              // [string]    required, see http://www.flickr.com/services/api/misc.api_keys.html
		type: null,                 // [string]    allowed values: 'photoset', 'search', default: 'flickr.photos.getRecent'
		photoset_id: null,          // [string]    required, for type=='photoset'
		text: null,			            // [string]    for type=='search' free text search
		user_id: null,              // [string]    for type=='search' search by user id
		group_id: null,             // [string]    for type=='search' search by group id
		tags: null,                 // [string]    for type=='search' comma separated list
		tag_mode: 'any',            // [string]    for type=='search' allowed values: 'any' (OR), 'all' (AND)
		sort: 'relevance',    // [string]    for type=='search' allowed values: 'date-posted-asc', 'date-posted-desc', 'date-taken-asc', 'date-taken-desc', 'interestingness-desc', 'interestingness-asc', 'relevance'
		thumb_size: 's',            // [string]    allowed values: 's' (75x75), 't' (100x?), 'm' (240x?)
		size: null,                 // [string]    allowed values: 'm' (240x?), 'b' (1024x?), 'o' (original), default: (500x?)
		per_page: 100,              // [integer]   allowed values: max of 500
		page: 1,     	              // [integer]   see paging notes
		attr: '',                   // [string]    optional, attributes applied to thumbnail <a> tag
		api_url: null,              // [string]    optional, custom url that returns flickr JSON or JSON-P 'photos' or 'photoset'
		params: '',                 // [string]    optional, custom arguments, see http://www.flickr.com/services/api/flickr.photos.search.html
		api_callback: '?',          // [string]    optional, custom callback in flickr JSON-P response
		callback: null ,             // [function]  optional, callback function applied to entire <ul>
		module_id: null,				//[string]  id to be appended to link class
		zoom_class: null					//[string]	will add class for fancybox

		// PAGING NOTES: jQuery Flickr plug-in does not provide paging functionality, but does provide hooks for a custom paging routine
		// within the <ul> created by the plug-in, there are two hidden <input> tags,
		// input:eq(0): current page, input:eq(1): total number of pages, input:eq(2): images per page, input:eq(3): total number of images

		// SEARCH NOTES: when setting type to 'search' at least one search parameter  must also be passed text, user_id, group_id, or tags

		// SIZE NOTES: photos must allow viewing original size for size 'o' to function, if not, default size is shown
	};

	if(o) $.extend(s, o);

	return this.each(function(){

		// create unordered list to contain flickr images
		var list = $('<ul>').appendTo(this);
		var url = $.flickr.format(s);

		$.getJSON(url, function(r){
			if (r.stat != "ok"){
				for (i in r){
					$('<li>').text(i+': '+ r[i]).appendTo(list);
				};
			} else {
				if (s.type == 'photoset') r.photos = r.photoset;
				// add hooks to access paging data
				list.append('<input type="hidden" value="'+r.photos.page+'" />');
				list.append('<input type="hidden" value="'+r.photos.pages+'" />');
				list.append('<input type="hidden" value="'+r.photos.perpage+'" />');
				list.append('<input type="hidden" value="'+r.photos.total+'" />');

				for (var i=0; i<r.photos.photo.length; i++){
					var photo = r.photos.photo[i];
					switch (s.thumb_size){
							case 'sq':
								var t = photo.url_sq;
								break;

							case 't':
								var t = photo.url_t;
								break;

							case 's':
								var t = photo.url_s;
								break;

							default:
								var t = photo.url_sq;
						};

					//format image url
					switch (s.size){
						case 's':
							var h = photo.url_s;
							break;

						case 'm':
							var h = photo.url_m;
							break;

						case 'b':
							var h = 'https://farm'+photo['farm']+'.static.flickr.com/'+photo['server']+'/'+photo['id']+'_'+photo['secret'] + '_b.jpg';
							break;

						case 'o':
							var h = photo.url_o;
							break;

						default:
							h += photo['secret'] + '.jpg';
					};

					list.append('<li><a href="'+h+'" '+s.attr+' class="'+s.zoom_class+'" rel="'+s.zoom_class+'" title="'+photo['title']+'"><img src="'+t+'" alt="'+photo['title']+'" /></a></li>');
				};

				if (s.callback) s.callback(list);
			};
		});
	});
};

// static function to format the flickr API url according to the plug-in settings
$.flickr = {
		format: function(s){
				if (s.url) return s.url;

				var url = 'https://api.flickr.com/services/rest/?format=json&jsoncallback='+s.api_callback+'&api_key='+s.api_key;

				switch (s.type){
						case 'photoset':
								url += '&method=flickr.photosets.getPhotos&photoset_id=' + s.photoset_id;
								break;

						case 'search':
								url += '&method=flickr.photos.search&sort=' + s.sort;
								if (s.user_id) url += '&user_id=' + s.user_id;
								if (s.group_id) url += '&group_id=' + s.group_id;
								if (s.tags) url += '&tags=' + s.tags;
								if (s.tag_mode) url += '&tag_mode=' + s.tag_mode;
								if (s.text) url += '&text=' + s.text;
								break;

						default:
								url += '&method=flickr.photos.getRecent';
				};

				url += '&extras=original_format,url_sq,url_t,url_s,url_m,url_o';
				url += '&per_page=' + s.per_page + '&page=' + s.page + s.params;

				return url;
		}
};

})(jQuery);