[gnome-initial-setup] gnome-initial-setup: Add a page skip mechanism

[Jasper St. Pierre <jstpierre src gnome org>]

commit 4c2b1d461b672220ff4f536df739095b1e5b0876
Author: Michael Wood <michael g wood intel com>
Date:   Thu Jan 10 14:06:15 2013 +0000

    gnome-initial-setup: Add a page skip mechanism
    
    Add skip pages mechanism, e.g. those which require higher privileges.
    A new mode --session has been added which will skip those pages.
    Any page can be skipped by adding it to the skip_pages file.

 gnome-initial-setup/gnome-initial-setup.c        |  132 ++++++++++++++++++++--
 gnome-initial-setup/pages/eulas/gis-eula-pages.c |    2 +-
 gnome-initial-setup/pages/eulas/gis-eula-pages.h |    2 +-
 3 files changed, 123 insertions(+), 13 deletions(-)
---
diff --git a/gnome-initial-setup/gnome-initial-setup.c b/gnome-initial-setup/gnome-initial-setup.c
index e63584d..eff5168 100644
--- a/gnome-initial-setup/gnome-initial-setup.c
+++ b/gnome-initial-setup/gnome-initial-setup.c
@@ -26,6 +26,7 @@
 #include "gnome-initial-setup.h"
 
 #include <stdlib.h>
+#include <glib/gi18n.h>
 
 #ifdef HAVE_CLUTTER
 #include <clutter-gtk/clutter-gtk.h>
@@ -48,18 +49,108 @@
 
 /* main {{{1 */
 
+
+static gboolean session_setup_mode;
+static const gchar *system_setup_pages[] = {
+    "account",
+    "location"
+};
+
+typedef void (*PreparePage) (GisDriver *driver);
+
+typedef struct {
+    const gchar *page_id;
+    PreparePage prepare_page_func;
+} PageData;
+
+
+#define ADD_PAGE(pages, NAME) \
+  page_data = g_slice_new0 (PageData); \
+  page_data->page_id = #NAME; \
+  page_data->prepare_page_func = gis_prepare_ ## NAME ## _page; \
+  pages = g_list_append (pages, page_data);
+
+static GList*
+new_pages_table (void)
+{
+  GList *pages = NULL;
+
+  PageData *page_data;
+
+  ADD_PAGE (pages, language);
+  ADD_PAGE (pages, keyboard);
+  ADD_PAGE (pages, eula);
+  ADD_PAGE (pages, network);
+  ADD_PAGE (pages, account);
+  ADD_PAGE (pages, location);
+  ADD_PAGE (pages, goa);
+  ADD_PAGE (pages, summary);
+
+  return pages;
+}
+
+static gboolean
+should_skip_page (const gchar *page_id, gchar **skip_pages)
+{
+  guint i = 0;
+  /* check through our skip pages list for pages we don't want */
+  if (skip_pages) {
+    while (skip_pages[i]) {
+      if (g_strcmp0 (skip_pages[i], page_id) == 0)
+        return TRUE;
+      i++;
+    }
+  }
+
+  if (session_setup_mode) {
+    i = 0;
+    while (i < G_N_ELEMENTS (system_setup_pages)) {
+      if (g_strcmp0 (system_setup_pages[i], page_id) == 0)
+        return TRUE;
+      i++;
+    }
+  }
+
+  return FALSE;
+}
+
+static gchar **
+pages_to_skip_from_file (void)
+{
+  GKeyFile *skip_pages_file;
+  gchar **skip_pages;
+
+  skip_pages_file = g_key_file_new ();
+  /* TODO: put the skipfile somewhere sensible */
+  if (g_key_file_load_from_file (skip_pages_file, "/tmp/skip_pages_file",
+                                 G_KEY_FILE_NONE,
+                                 NULL)) {
+    skip_pages = g_key_file_get_string_list (skip_pages_file, "pages", "skip",
+                                             NULL, NULL);
+    g_key_file_free (skip_pages_file);
+
+    return skip_pages;
+  }
+
+  return NULL;
+}
+
 static void
-rebuild_pages_cb (GisDriver *driver)
+rebuild_pages_cb (GisDriver *driver, GList *pages)
 {
-  gis_assistant_destroy_all_pages (gis_driver_get_assistant (driver));
-  gis_prepare_language_page (driver);
-  gis_prepare_keyboard_page (driver);
-  gis_prepare_eula_pages (driver);
-  gis_prepare_network_page (driver);
-  gis_prepare_account_page (driver);
-  gis_prepare_location_page (driver);
-  gis_prepare_goa_page (driver);
-  gis_prepare_summary_page (driver);
+  GList *pages_itr = NULL;
+  gchar **skip_pages;
+
+  skip_pages = pages_to_skip_from_file ();
+
+  for (pages_itr = pages; pages_itr != NULL; pages_itr = pages_itr->next) {
+    PageData *page_data = pages_itr->data;
+
+    if (!should_skip_page (page_data->page_id, skip_pages))
+      page_data->prepare_page_func (driver);
+  }
+
+  g_strfreev (skip_pages);
 }
 
 int
@@ -67,6 +158,22 @@ main (int argc, char *argv[])
 {
   GisDriver *driver;
   int status;
+  GOptionContext *context;
+  GList *pages;
+
+  pages = new_pages_table ();
+
+  GOptionEntry entries[] =
+    {
+      { "session", 'u', 0, G_OPTION_ARG_NONE, &session_setup_mode,
+      _("Session setup mode"), NULL },
+      { NULL }
+    };
+
+  context = g_option_context_new ("- GNOME initial setup");
+  g_option_context_add_main_entries (context, entries, NULL);
+
+  g_option_context_parse (context, &argc, &argv, NULL);
 
   bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR);
   bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
@@ -88,9 +195,12 @@ main (int argc, char *argv[])
   g_type_ensure (EGG_TYPE_LIST_BOX);
 
   driver = gis_driver_new ();
-  g_signal_connect (driver, "rebuild-pages", G_CALLBACK (rebuild_pages_cb), NULL);
+  g_signal_connect (driver, "rebuild-pages", G_CALLBACK (rebuild_pages_cb), pages);
   status = g_application_run (G_APPLICATION (driver), argc, argv);
+
   g_object_unref (driver);
+  g_option_context_free (context);
+  g_list_free (pages);
   return status;
 }
 
diff --git a/gnome-initial-setup/pages/eulas/gis-eula-pages.c b/gnome-initial-setup/pages/eulas/gis-eula-pages.c
index f9cbb33..0524b0f 100644
--- a/gnome-initial-setup/pages/eulas/gis-eula-pages.c
+++ b/gnome-initial-setup/pages/eulas/gis-eula-pages.c
@@ -375,7 +375,7 @@ gis_eula_page_init (GisEulaPage *page)
 }
 
 void
-gis_prepare_eula_pages (GisDriver *driver)
+gis_prepare_eula_page (GisDriver *driver)
 {
   gchar *eulas_dir_path;
   GFile *eulas_dir;
diff --git a/gnome-initial-setup/pages/eulas/gis-eula-pages.h b/gnome-initial-setup/pages/eulas/gis-eula-pages.h
index 063f8db..d87f05f 100644
--- a/gnome-initial-setup/pages/eulas/gis-eula-pages.h
+++ b/gnome-initial-setup/pages/eulas/gis-eula-pages.h
@@ -55,7 +55,7 @@ struct _GisEulaPageClass
 
 GType gis_eula_page_get_type (void);
 
-void gis_prepare_eula_pages (GisDriver *driver);
+void gis_prepare_eula_page (GisDriver *driver);
 
 G_END_DECLS