[gnome-builder] app: add workaround network availability

[Christian Hergert <chergert src gnome org>]

commit db681e7a1cfefc6acf216d71c37f4dace455afbb
Author: Christian Hergert <chergert redhat com>
Date:   Wed Aug 8 18:07:57 2018 -0700

    app: add workaround network availability
    
    This allows us to work around the portal issue for now until upstream glib
    gets a bug fix that we want.

 src/libide/application/ide-application-private.h |  4 ++
 src/libide/application/ide-application.c         | 57 ++++++++++++++++++++++++
 src/libide/application/ide-application.h         |  2 +
 3 files changed, 63 insertions(+)
---
diff --git a/src/libide/application/ide-application-private.h 
b/src/libide/application/ide-application-private.h
index ff73868c4..95e6b7f9a 100644
--- a/src/libide/application/ide-application-private.h
+++ b/src/libide/application/ide-application-private.h
@@ -68,6 +68,10 @@ struct _IdeApplication
   GSettings           *settings;
 
   GDBusProxy          *color_proxy;
+
+  /* Work around network portal errors */
+  GNetworkMonitor     *network_monitor;
+  guint                has_network : 1;
 } DZL_ALIGNED_END(8);
 
 void     ide_application_discover_plugins           (IdeApplication        *self) G_GNUC_INTERNAL;
diff --git a/src/libide/application/ide-application.c b/src/libide/application/ide-application.c
index e3d309d36..976b9bb99 100644
--- a/src/libide/application/ide-application.c
+++ b/src/libide/application/ide-application.c
@@ -560,6 +560,7 @@ ide_application_finalize (GObject *object)
   g_clear_object (&self->settings);
   g_clear_object (&self->color_proxy);
   g_clear_object (&self->projects_directory);
+  g_clear_object (&self->network_monitor);
 
   G_OBJECT_CLASS (ide_application_parent_class)->finalize (object);
 }
@@ -1008,3 +1009,59 @@ ide_application_get_projects_directory (IdeApplication *self)
 
   return g_object_ref (self->projects_directory);
 }
+
+static void
+ide_application_network_changed_cb (IdeApplication  *self,
+                                    gboolean         available,
+                                    GNetworkMonitor *monitor)
+{
+  g_assert (IDE_IS_APPLICATION (self));
+  g_assert (G_IS_NETWORK_MONITOR (monitor));
+
+  self->has_network = !!available;
+}
+
+/**
+ * ide_application_has_network:
+ * @self: (nullable): a #IdeApplication
+ *
+ * This is a helper that uses an internal #GNetworkMonitor to track if we
+ * have access to the network. It works around some issues we've seen in
+ * the wild that make determining if we have network access difficult.
+ *
+ * Returns: %TRUE if we think there is network access.
+ *
+ * Since: 3.30
+ */
+gboolean
+ide_application_has_network (IdeApplication *self)
+{
+  g_return_val_if_fail (!self || IDE_IS_APPLICATION (self), FALSE);
+
+  if (self == NULL)
+    self = IDE_APPLICATION_DEFAULT;
+
+  if (self->network_monitor == NULL)
+    {
+      self->network_monitor = g_object_ref (g_network_monitor_get_default ());
+
+      g_signal_connect_object (self->network_monitor,
+                               "network-changed",
+                               G_CALLBACK (ide_application_network_changed_cb),
+                               self,
+                               G_CONNECT_SWAPPED);
+
+      self->has_network = g_network_monitor_get_network_available (self->network_monitor);
+
+      /*
+       * FIXME: Ignore the network portal initially for now.
+       *
+       * See https://gitlab.gnome.org/GNOME/glib/merge_requests/227 for more
+       * information about when this is fixed.
+       */
+      if (!self->has_network && ide_is_flatpak ())
+        self->has_network = TRUE;
+    }
+
+  return self->has_network;
+}
diff --git a/src/libide/application/ide-application.h b/src/libide/application/ide-application.h
index 09bf84567..61aaed2b0 100644
--- a/src/libide/application/ide-application.h
+++ b/src/libide/application/ide-application.h
@@ -77,5 +77,7 @@ void                ide_application_add_reaper             (IdeApplication
                                                             DzlDirectoryReaper   *reaper);
 IDE_AVAILABLE_IN_3_28
 GFile              *ide_application_get_projects_directory (IdeApplication       *self);
+IDE_AVAILABLE_IN_3_30
+gboolean            ide_application_has_network            (IdeApplication       *self);
 
 G_END_DECLS