From 2062a91d9ca2f31ccf4cd1eaa338c5190bffe56d Mon Sep 17 00:00:00 2001
From: brettp <brettp@36083f99-b078-4883-b0ff-0f9b5a30f544>
Date: Fri, 4 Feb 2011 23:03:32 +0000
Subject: Added support for screenshots in the advanced plugin admin.

git-svn-id: http://code.elgg.org/elgg/trunk@8021 36083f99-b078-4883-b0ff-0f9b5a30f544
---
 engine/lib/admin.php | 51 +++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 49 insertions(+), 2 deletions(-)

(limited to 'engine')

diff --git a/engine/lib/admin.php b/engine/lib/admin.php
index c3dfb7b84..0e6eab0cf 100644
--- a/engine/lib/admin.php
+++ b/engine/lib/admin.php
@@ -87,9 +87,9 @@ function admin_init() {
 
 	elgg_register_action('admin/site/update_basic', '', 'admin');
 	elgg_register_action('admin/site/update_advanced', '', 'admin');
-	
+
 	elgg_register_action('admin/menu/save', '', 'admin');
-	
+
 	elgg_register_action('admin/plugins/simple_update_states', '', 'admin');
 
 	elgg_register_action('profile/fields/reset', '', 'admin');
@@ -145,6 +145,7 @@ function admin_init() {
 	}
 
 	register_page_handler('admin', 'admin_settings_page_handler');
+	register_page_handler('admin_plugin_screenshot', 'admin_plugin_screenshot_page_handler');
 }
 
 /**
@@ -223,6 +224,52 @@ function admin_settings_page_handler($page) {
 	echo elgg_view_page($title, $body, 'admin');
 }
 
+/**
+ * Serves up screenshots for plugins from
+ * elgg/pg/admin_plugin_ss/<plugin_id>/<size>/<ss_name>.<ext>
+ *
+ * @param array $pages The pages array
+ * @return true
+ */
+function admin_plugin_screenshot_page_handler($pages) {
+	admin_gatekeeper();
+
+	$plugin_id = elgg_get_array_value(0, $pages);
+	// only thumbnail or full.
+	$size = elgg_get_array_value(1, $pages, 'thumbnail');
+
+	// the rest of the string is the filename
+	$filename_parts = array_slice($pages, 2);
+	$filename = implode('/', $filename_parts);
+	$filename = sanitise_filepath($filename, false);
+
+	$plugin = new ElggPlugin($plugin_id);
+	if (!$plugin) {
+		$file = elgg_get_root_dir() . '_graphics/icons/default/medium.png';
+	} else {
+		$file = $plugin->getPath() . $filename;
+		if (!file_exists($file)) {
+			$file = elgg_get_root_dir() . '_graphics/icons/default/medium.png';
+		}
+	}
+
+	header("Content-type: image/jpeg");
+
+	// resize to 100x100 for thumbnails
+	switch ($size) {
+		case 'thumbnail':
+			echo get_resized_image_from_existing_file($file, 100, 100, true);
+			break;
+
+		case 'full':
+		default:
+			echo file_get_contents($file);
+			break;
+	}
+
+	return true;
+}
+
 /**
  * Write a persistent message to the admin view.
  * Useful to alert the admin to take a certain action.
-- 
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