[gnome-maps] checkIn: Gracefully handle failure to create GOA client

[Marcus Lundblad <mlundblad src gnome org>]

commit 9df6884ab55c3d6c005a4410f7f2a71b29270530
Author: Marcus Lundblad <ml update uu se>
Date:   Tue Mar 14 22:10:41 2017 +0100

    checkIn: Gracefully handle failure to create GOA client
    
    Don't crash if we're not able to create the GOA client.
    Instead gracefully disable check-in support.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=779975

 src/checkIn.js |   20 ++++++++++++++++----
 1 files changed, 16 insertions(+), 4 deletions(-)
---
diff --git a/src/checkIn.js b/src/checkIn.js
index 0830469..3291822 100644
--- a/src/checkIn.js
+++ b/src/checkIn.js
@@ -44,16 +44,26 @@ const CheckInManager = new Lang.Class({
     _init: function() {
         this.parent();
 
-        this._goaClient = Goa.Client.new_sync(null);
+        try {
+            this._goaClient = Goa.Client.new_sync(null);
+        } catch (e) {
+            log('Error creating GOA client: %s'.format(e.message));
+        }
+
         this._accounts = [];
         this._authorizers = {};
         this._backends = {};
 
         this._initBackends();
 
-        this._goaClient.connect('account-added', this._refreshGoaAccounts.bind(this));
-        this._goaClient.connect('account-changed', this._refreshGoaAccounts.bind(this));
-        this._goaClient.connect('account-removed', this._refreshGoaAccounts.bind(this));
+        if (this._goaClient) {
+            this._goaClient.connect('account-added',
+                                    this._refreshGoaAccounts.bind(this));
+            this._goaClient.connect('account-changed',
+                                    this._refreshGoaAccounts.bind(this));
+            this._goaClient.connect('account-removed',
+                                    this._refreshGoaAccounts.bind(this));
+        }
 
         this._refreshGoaAccounts();
     },
@@ -67,6 +77,8 @@ const CheckInManager = new Lang.Class({
     },
 
     _refreshGoaAccounts: function() {
+        if (!this._goaClient)
+            return;
         let accounts = this._goaClient.get_accounts();
         this._accounts = [];
         this._accountsCount = 0;