[gnome-shell] extensionPrefs: Simplify state change handling

[Florian Müllner <fmuellner src gnome org>]

commit 2703eed446e7333cd8e1fa5371baf08f72e49c10
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Nov 30 06:01:44 2019 +0100

    extensionPrefs: Simplify state change handling
    
    The new `ExtensionStateChanged` signal already passes the changed
    extension object, no need to request it again with `GetExtensionInfo`.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/873

 js/extensionPrefs/main.js | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)
---
diff --git a/js/extensionPrefs/main.js b/js/extensionPrefs/main.js
index 163d6dbfe7..387f7f325b 100644
--- a/js/extensionPrefs/main.js
+++ b/js/extensionPrefs/main.js
@@ -258,23 +258,15 @@ class Application extends Gtk.Application {
     }
 
     _onExtensionStateChanged(proxy, senderName, [uuid, newState]) {
+        let extension = ExtensionUtils.deserializeExtension(newState);
         let row = this._findExtensionRow(uuid);
+
         if (row) {
-            let { state } = ExtensionUtils.deserializeExtension(newState);
-            if (state == ExtensionState.UNINSTALLED)
+            if (extension.state === ExtensionState.UNINSTALLED)
                 row.destroy();
             return; // we only deal with new and deleted extensions here
         }
-
-        this._shellProxy.GetExtensionInfoRemote(uuid, ([serialized]) => {
-            let extension = ExtensionUtils.deserializeExtension(serialized);
-            if (!extension)
-                return;
-            // check the extension wasn't added in between
-            if (this._findExtensionRow(uuid) != null)
-                return;
-            this._addExtensionRow(extension);
-        });
+        this._addExtensionRow(extension);
     }
 
     _scanExtensions() {