From 38c8569d16e1e766879c7b172f80d39a3cf35986 Mon Sep 17 00:00:00 2001
From: Cosimo Cecchi <cosimoc@gnome.org>
Date: Thu, 1 Nov 2012 15:55:41 -0400
Subject: [PATCH] remote-search: restructure remote search provider loading
 process

Instead of adding search providers to the system as we find them, wait
until we loaded information from all the directories, and then add all
providers at once.
This will be useful when we will sort the providers information
according to the sort order saved in GSettings.

https://bugzilla.gnome.org/show_bug.cgi?id=687491
---
 js/ui/remoteSearch.js | 32 ++++++++++++++++++++++++--------
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/js/ui/remoteSearch.js b/js/ui/remoteSearch.js
index 16c09100b..45fbda50a 100644
--- a/js/ui/remoteSearch.js
+++ b/js/ui/remoteSearch.js
@@ -31,10 +31,13 @@ const SearchProviderIface = <interface name="org.gnome.Shell.SearchProvider">
 
 var SearchProviderProxy = Gio.DBusProxy.makeProxyWrapper(SearchProviderIface);
 
-
 function loadRemoteSearchProviders(addProviderCallback) {
+    let loadState = { loadedProviders: [],
+                      objectPaths: {},
+                      numLoading: 0,
+                      addProviderCallback: addProviderCallback };
+
     let dataDirs = GLib.get_system_data_dirs();
-    let loadedProviders = {};
     for (let i = 0; i < dataDirs.length; i++) {
         let path = GLib.build_filenamev([dataDirs[i], 'gnome-shell', 'search-providers']);
         let dir = Gio.file_new_for_path(path);
@@ -52,12 +55,13 @@ function loadRemoteSearchProviders(addProviderCallback) {
                     if (!exists)
                         return;
 
-                    loadRemoteSearchProvidersFromDir(dir, loadedProviders, addProviderCallback);
+                    loadState.numLoading++;
+                    loadRemoteSearchProvidersFromDir(dir, loadState);
                 });
     }
 };
 
-function loadRemoteSearchProvidersFromDir(dir, loadedProviders, addProviderCallback) {
+function loadRemoteSearchProvidersFromDir(dir, loadState) {
     let dirPath = dir.get_path();
     FileUtils.listDirAsync(dir, Lang.bind(this, function(files) {
         for (let i = 0; i < files.length; i++) {
@@ -79,7 +83,7 @@ function loadRemoteSearchProvidersFromDir(dir, loadedProviders, addProviderCallb
                 let busName = keyfile.get_string(group, 'BusName');
                 let objectPath = keyfile.get_string(group, 'ObjectPath');
 
-                if (loadedProviders[objectPath])
+                if (loadState.objectPaths[objectPath])
                     continue;
 
                 let appInfo = null;
@@ -94,18 +98,30 @@ function loadRemoteSearchProvidersFromDir(dir, loadedProviders, addProviderCallb
                 remoteProvider = new RemoteSearchProvider(appInfo,
                                                           busName,
                                                           objectPath);
-                loadedProviders[objectPath] = remoteProvider;
+                loadState.objectPaths[objectPath] = remoteProvider;
+                loadState.loadedProviders.push(remoteProvider);
             } catch(e) {
                 log('Failed to add search provider %s: %s'.format(path, e.toString()));
                 continue;
             }
-
-            addProviderCallback(remoteProvider);
         }
+
+        remoteProvidersDirLoaded(loadState);
     }));
 
 };
 
+function remoteProvidersDirLoaded(loadState) {
+    loadState.numLoading--;
+    if (loadState.numLoading > 0)
+        return;
+
+    loadState.loadedProviders.forEach(
+        function(provider) {
+            loadState.addProviderCallback(provider);
+        });
+}
+
 const RemoteSearchProvider = new Lang.Class({
     Name: 'RemoteSearchProvider',
     Extends: Search.SearchProvider,