From eb1e882d7c4887cff346c26562f68bcf8280758c Mon Sep 17 00:00:00 2001
From: rabuzarus <>
Date: Thu, 14 Apr 2016 14:07:20 +0200
Subject: [PATCH] open friendica photos from the stream with colorbox

---
 js/theme.js | 28 ++++++++++++++++++++++++++++
 theme.php   | 42 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+)

diff --git a/js/theme.js b/js/theme.js
index fb1a2236c6..7cd98c862d 100644
--- a/js/theme.js
+++ b/js/theme.js
@@ -73,6 +73,34 @@ $(document).ready(function(){
 			});
 	});
 
+	// Add Colorbox for viewing Network page images
+	//var cBoxClasses = new Array();
+	$(".wall-item-body a img").each(function(){
+		var aElem = $(this).parent();
+		var imgHref = aElem.attr("href");
+
+		// We need to make sure we only put a Colorbox on links to Friendica images
+		// We'll try to do this by looking for links of the form
+		// .../photo/ab803d8eg08daf85023adfec08 (with nothing more following), in hopes
+		// that that will be unique enough
+		if(imgHref.match(/\/photo\/[a-fA-F0-9]+(-[0-9]\.[\w]+?)?$/)) {
+
+			// Add a unique class to all the images of a certain post, to allow scrolling through
+			var cBoxClass = $(this).closest(".wall-item-body").attr("id") + "-lightbox";
+			$(this).addClass(cBoxClass);
+
+//			if( $.inArray(cBoxClass, cBoxClasses) < 0 ) {
+//				cBoxClasses.push(cBoxClass);
+//			}
+
+			aElem.colorbox({
+				maxHeight: '90%',
+				photo: true, // Colorbox doesn't recognize a URL that don't end in .jpg, etc. as a photo
+				rel: cBoxClass //$(this).attr("class").match(/wall-item-body-[\d]+-lightbox/)[0]
+			});
+		}
+	});
+
 	// overwrite Dialog.show from main js to load the filebrowser into a bs modal
 	Dialog.show = function(url) {
 		var modal = $('#modal').modal();
diff --git a/theme.php b/theme.php
index 8dae2c3aa1..0d74116d98 100644
--- a/theme.php
+++ b/theme.php
@@ -83,11 +83,53 @@ EOT;
 }
 
 function frio_install() {
+	register_hook('prepare_body_final', 'view/theme/frio/theme.php', 'frio_item_photo_links');
 
 	logger("installed theme frio");
 }
 
 function frio_uninstall() {
+	unregister_hook('prepare_body_final', 'view/theme/frio/theme.php', 'frio_item_photo_links');
 
 	logger("uninstalled theme frio");
 }
+/**
+ * @brief Replace friendica photo links
+ * 
+ *  This function does replace the links to photos
+ *  of other friendica users. Original the photos are
+ *  linked to the photo page. Now they will linked directly
+ *  to the photo file. This function is nessesary to use colorbox
+ *  in the network stream
+ * 
+ * @param App $a
+ * @param array $body_info The item and its html output
+ */
+function frio_item_photo_links(&$a, &$body_info) {
+	require_once('include/Photo.php');
+
+	$phototypes = Photo::supportedTypes();
+	$occurence = 1;
+	$p = bb_find_open_close($body_info['html'], "<a", ">");
+
+	while($p !== false && ($occurence++ < 500)) {
+		$link = substr($body_info['html'], $p['start'], $p['end'] - $p['start']);
+		$matches = array();
+
+		preg_match("/\/photos\/[\w]+\/image\/([\w]+)/", $link, $matches);
+		if($matches) {
+			// Replace the link for the photo's page with a direct link to the photo itself
+			$newlink = str_replace($matches[0], "/photo/{$matches[1]}", $link);
+
+			// Add a "quiet" parameter to any redir links to prevent the "XX welcomes YY" info boxes
+			$newlink = preg_replace("/href=\"([^\"]+)\/redir\/([^\"]+)&url=([^\"]+)\"/", 'href="$1/redir/$2&quiet=1&url=$3"', $newlink);
+
+			 // Having any arguments to the link for Colorbox causes it to fetch base64 code instead of the image
+			$newlink = preg_replace("/\/[?&]zrl=([^&\"]+)/", '', $newlink);
+
+			$body_info['html'] = str_replace($link, $newlink, $body_info['html']);
+		}
+
+		$p = bb_find_open_close($body_info['html'], "<a", ">", $occurence);
+	}
+}