[gnome-software/gnome-3-20] Do not re-request the distro-upgrade when switching pages

[Richard Hughes <rhughes src gnome org>]

commit 9afd827c62fd1cef483143d6bae12e76566e7c99
Author: Richard Hughes <richard hughsie com>
Date:   Thu Apr 21 22:13:02 2016 +0100

    Do not re-request the distro-upgrade when switching pages

 src/gs-shell-updates.c |   25 ++++++++++++++++---------
 1 files changed, 16 insertions(+), 9 deletions(-)
---
diff --git a/src/gs-shell-updates.c b/src/gs-shell-updates.c
index 8e3b644..7f51330 100644
--- a/src/gs-shell-updates.c
+++ b/src/gs-shell-updates.c
@@ -527,10 +527,12 @@ gs_shell_updates_get_updates_cb (GsPluginLoader *plugin_loader,
 }
 
 static void
-gs_shell_updates_get_upgrades_cb (GsPluginLoader *plugin_loader,
-                                  GAsyncResult *res,
-                                  GsShellUpdates *self)
+gs_shell_updates_get_upgrades_cb (GObject *source_object,
+                                 GAsyncResult *res,
+                                 gpointer user_data)
 {
+       GsPluginLoader *plugin_loader = GS_PLUGIN_LOADER (source_object);
+       GsShellUpdates *self = GS_SHELL_UPDATES (user_data);
        g_autoptr(GError) error = NULL;
        g_autoptr(GsAppList) list = NULL;
 
@@ -570,7 +572,6 @@ gs_shell_updates_load (GsShellUpdates *self)
 
        if (self->in_flight > 0)
                return;
-       self->in_flight = 2;
        gs_container_remove_all (GTK_CONTAINER (self->list_box_updates));
        refine_flags = GS_PLUGIN_REFINE_FLAGS_DEFAULT |
                       GS_PLUGIN_REFINE_FLAGS_REQUIRE_UPDATE_DETAILS |
@@ -578,16 +579,22 @@ gs_shell_updates_load (GsShellUpdates *self)
                       GS_PLUGIN_REFINE_FLAGS_REQUIRE_VERSION;
        gs_shell_updates_set_state (self,
                                    GS_SHELL_UPDATES_STATE_ACTION_GET_UPDATES);
+       self->in_flight++;
        gs_plugin_loader_get_updates_async (self->plugin_loader,
                                            refine_flags,
                                            self->cancellable,
                                            (GAsyncReadyCallback) gs_shell_updates_get_updates_cb,
                                            self);
-       gs_plugin_loader_get_distro_upgrades_async (self->plugin_loader,
-                                                   GS_PLUGIN_REFINE_FLAGS_DEFAULT,
-                                                   self->cancellable,
-                                                   (GAsyncReadyCallback) gs_shell_updates_get_upgrades_cb,
-                                                   self);
+
+       /* don't refresh every each time */
+       if ((self->result_flags & GS_SHELL_UPDATES_FLAG_HAS_UPGRADES) == 0) {
+               gs_plugin_loader_get_distro_upgrades_async (self->plugin_loader,
+                                                           refine_flags,
+                                                           self->cancellable,
+                                                           gs_shell_updates_get_upgrades_cb,
+                                                           self);
+               self->in_flight++;
+       }
 }
 
 /**