From 5cadd29d587bb50f19f8ac38d406a5d29003f7b1 Mon Sep 17 00:00:00 2001
From: Ralf Becker <ralfbecker@outdoor-training.de>
Date: Tue, 13 Sep 2011 18:23:43 +0000
Subject: [PATCH] Basic egw.link_title(_app,_id,_callback,_context) method.
 Plan is to run a clientside cache and own queue for link_titles, as server
 can query titles for N id's for a given app more effiently then N separeate
 queries.

---
 .../inc/class.etemplate_widget_link.inc.php   | 28 ++++++++++++++-----
 phpgwapi/js/jsapi/egw.js                      | 18 ++++++++++++
 2 files changed, 39 insertions(+), 7 deletions(-)

diff --git a/etemplate/inc/class.etemplate_widget_link.inc.php b/etemplate/inc/class.etemplate_widget_link.inc.php
index 19d8859f44..40e4fe690d 100644
--- a/etemplate/inc/class.etemplate_widget_link.inc.php
+++ b/etemplate/inc/class.etemplate_widget_link.inc.php
@@ -95,6 +95,20 @@ error_log("$app, $pattern, $options");
 		$response->data($links);
 	}
 
+	/**
+	 * Return title for a given app/id pair
+	 *
+	 * @param string $app
+	 * @param string|int $id
+	 * @return string|boolean string with title, boolean false of permission denied or null if not found
+	 */
+	public static function ajax_link_title($app,$id)
+	{
+		$title = egw_link::title($app, $id);
+		error_log(__METHOD__."('$app', '$id') = ".array2string($title));
+		egw_json_response::get()->data($title);
+	}
+
 	/**
 	 * Create links
 	 */
@@ -103,13 +117,13 @@ error_log("$app, $pattern, $options");
 		foreach($links as &$link) {
 			if($link['app'] == egw_link::VFS_APPNAME) {
 				if (is_dir($GLOBALS['egw_info']['server']['temp_dir']) && is_writable($GLOBALS['egw_info']['server']['temp_dir']))
-                                {
-                                        $path = $GLOBALS['egw_info']['server']['temp_dir'] . '/' . $link['id'];
-                                }
-                                else
-                                {
-                                        $path = $link['id'].'+';
-                                }
+				{
+					$path = $GLOBALS['egw_info']['server']['temp_dir'] . '/' . $link['id'];
+				}
+				else
+				{
+					$path = $link['id'].'+';
+				}
 				$link['tmp_name'] = $path;
 				$link['id'] = $link;
 			}
diff --git a/phpgwapi/js/jsapi/egw.js b/phpgwapi/js/jsapi/egw.js
index a5c5895dc7..cd4e99a67e 100644
--- a/phpgwapi/js/jsapi/egw.js
+++ b/phpgwapi/js/jsapi/egw.js
@@ -750,6 +750,24 @@ else
 
 				delete this.jsonq_queue[uid];
 			}
+		},
+
+		/**
+		 * Query a title of _app/_id
+		 * 
+		 * @param string _app
+		 * @param string|int _id
+		 * @param function _callback optinal callback, required if for responses from the server
+		 * @param object _context context for the callback
+		 * @return string|boolean|null string with title if it exist in local cache or null if not
+		 */
+		link_title: function(_app, _id, _callback, _context)
+		{
+			if (typeof _callback == 'function')
+			{
+				this.jsonq(_app+'.etemplate_widget_link.ajax_link_title', [_app, _id], _callback, _context);
+			}
+			return null;
 		}
 	};
 }