[gnome-initial-setup/wip/oholy/account-offline-v2] account: Add offline mode for account page

[Ondrej Holy <oholy src gnome org>]

commit 2bc02eac8980a256a2e94483f033518d532da174
Author: Ondrej Holy <oholy redhat com>
Date:   Fri Nov 2 13:10:36 2018 +0100

    account: Add offline mode for account page
    
    Show "Go online to setup Enterprise Login" label instead of "Set Up
    Enterprise Login" toggle if network is not available. This is based
    on the following mockup:
    https://gitlab.gnome.org/Teams/Design/os-mockups/blob/master/initial-setup/user-account.png
    
    https://gitlab.gnome.org/GNOME/gnome-initial-setup/issues/63

 .../pages/account/gis-account-page.c               | 28 ++++++++++++++++++++--
 .../pages/account/gis-account-page.ui              | 24 ++++++++++++++++---
 2 files changed, 47 insertions(+), 5 deletions(-)
---
diff --git a/gnome-initial-setup/pages/account/gis-account-page.c 
b/gnome-initial-setup/pages/account/gis-account-page.c
index 4c41cb1..0d2c562 100644
--- a/gnome-initial-setup/pages/account/gis-account-page.c
+++ b/gnome-initial-setup/pages/account/gis-account-page.c
@@ -36,9 +36,11 @@ struct _GisAccountPagePrivate
 {
   GtkWidget *page_local;
   GtkWidget *page_enterprise;
+  GtkWidget *stack;
 
   GtkWidget *page_toggle;
-  GtkWidget *stack;
+  GtkWidget *offline_label;
+  GtkWidget *offline_stack;
 
   UmAccountMode mode;
 };
@@ -203,11 +205,26 @@ on_local_user_cached (GtkWidget      *page_local,
   gis_driver_set_user_permissions (GIS_PAGE (page)->driver, user, password);
 }
 
+void
+on_network_changed (GNetworkMonitor *monitor,
+                    gboolean         available,
+                    GisAccountPage  *page)
+{
+  GisAccountPagePrivate *priv = gis_account_page_get_instance_private (page);
+
+  if (!available && priv->mode != UM_ENTERPRISE)
+    gtk_stack_set_visible_child (GTK_STACK (priv->offline_stack), priv->offline_label);
+  else
+    gtk_stack_set_visible_child (GTK_STACK (priv->offline_stack), priv->page_toggle);
+}
+
 static void
 gis_account_page_constructed (GObject *object)
 {
   GisAccountPage *page = GIS_ACCOUNT_PAGE (object);
   GisAccountPagePrivate *priv = gis_account_page_get_instance_private (page);
+  GNetworkMonitor *monitor;
+  gboolean available;
 
   G_OBJECT_CLASS (gis_account_page_parent_class)->constructed (object);
 
@@ -233,6 +250,11 @@ gis_account_page_constructed (GObject *object)
   priv->mode = NUM_MODES;
   set_mode (page, UM_LOCAL);
 
+  monitor = g_network_monitor_get_default ();
+  available = g_network_monitor_get_network_available (monitor);
+  on_network_changed (monitor, available, page);
+  g_signal_connect (monitor, "network-changed", G_CALLBACK (on_network_changed), page);
+
   gtk_widget_show (GTK_WIDGET (page));
 }
 
@@ -252,9 +274,11 @@ gis_account_page_class_init (GisAccountPageClass *klass)
 
   gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (klass), GisAccountPage, page_local);
   gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (klass), GisAccountPage, page_enterprise);
+  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (klass), GisAccountPage, stack);
 
   gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (klass), GisAccountPage, page_toggle);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (klass), GisAccountPage, stack);
+  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (klass), GisAccountPage, offline_label);
+  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (klass), GisAccountPage, offline_stack);
 
   page_class->page_id = PAGE_ID;
   page_class->locale_changed = gis_account_page_locale_changed;
diff --git a/gnome-initial-setup/pages/account/gis-account-page.ui 
b/gnome-initial-setup/pages/account/gis-account-page.ui
index bf55701..a1a118d 100644
--- a/gnome-initial-setup/pages/account/gis-account-page.ui
+++ b/gnome-initial-setup/pages/account/gis-account-page.ui
@@ -31,13 +31,31 @@
           </packing>
         </child>
         <child>
-          <object class="GtkToggleButton" id="page_toggle">
+          <object class="GtkStack" id="offline_stack">
             <property name="visible">True</property>
-            <property name="use_underline">True</property>
-            <property name="label" translatable="yes">Set Up _Enterprise Login</property>
             <property name="halign">center</property>
             <property name="valign">end</property>
             <property name="margin_bottom">18</property>
+            <child>
+              <object class="GtkToggleButton" id="page_toggle">
+                <property name="visible">True</property>
+                <property name="use_underline">True</property>
+                <property name="label" translatable="yes">Set Up _Enterprise Login</property>
+                <property name="halign">center</property>
+                <property name="valign">center</property>
+              </object>
+            </child>
+            <child>
+              <object class="GtkLabel" id="offline_label">
+                <property name="visible">True</property>
+                <property name="halign">center</property>
+                <property name="valign">center</property>
+                <property name="label" translatable="yes">Go online to setup Enterprise Login</property>
+                <style>
+                  <class name="dim-label"/>
+                </style>
+              </object>
+            </child>
           </object>
         </child>
       </object>