[gnome-software/wip/launcher: 5/7] Start up in true service mode

[Matthias Clasen <matthiasc src gnome org>]

commit a9cae306dab3d5a52ad4a9a1e4f51506d94f4177
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Sep 15 20:59:04 2013 -0400

    Start up in true service mode
    
    Only initialize the UI when we have been activated.
    Merely starting the service process should not show
    a window.
    
    In the future, we will monitor for available updates
    in the service process, and keep the service process
    alive for that, but for now, it will exit after the
    10 second grace period that GApplication provides for
    services.

 src/gs-application.c |  165 +++++++++++++++++++++++++++++---------------------
 1 files changed, 97 insertions(+), 68 deletions(-)
---
diff --git a/src/gs-application.c b/src/gs-application.c
index 8d547c7..e35f8a4 100644
--- a/src/gs-application.c
+++ b/src/gs-application.c
@@ -57,6 +57,82 @@ gs_application_init (GsApplication *application)
 }
 
 static void
+gs_application_initialize_ui (GsApplication *app)
+{
+       static gboolean initialized = FALSE;
+       GtkBuilder *builder;
+       GMenuModel *app_menu;
+       GtkWindow *window;
+       GFile *file;
+       GError *error = NULL;
+
+       if (initialized)
+               return;
+
+       initialized = TRUE;
+
+       gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (),
+                                          DATADIR "/gnome-software/icons/hicolor");
+
+       /* set up the app menu */
+       builder = gtk_builder_new_from_resource ("/org/gnome/software/app-menu.ui");
+       app_menu = G_MENU_MODEL (gtk_builder_get_object (builder, "appmenu"));
+       gtk_application_set_app_menu (GTK_APPLICATION (app), app_menu);
+       g_object_unref (builder);
+
+       /* get CSS */
+       app->provider = gtk_css_provider_new ();
+       gtk_style_context_add_provider_for_screen (gdk_screen_get_default (),
+                                                  GTK_STYLE_PROVIDER (app->provider),
+                                                  GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+       file = g_file_new_for_uri ("resource:///org/gnome/software/gtk-style.css");
+       gtk_css_provider_load_from_file (app->provider, file, NULL);
+       g_object_unref (file);
+
+       /* setup pk */
+       app->task = pk_task_new ();
+       g_object_set (app->task, "background", FALSE, NULL);
+
+       /* setup plugins */
+       app->plugin_loader = gs_plugin_loader_new ();
+       gs_plugin_loader_set_location (app->plugin_loader, NULL);
+       if (!gs_plugin_loader_setup (app->plugin_loader, &error)) {
+               g_warning ("Failed to setup plugins: %s", error->message);
+               exit (1);
+       }
+       gs_plugin_loader_set_enabled (app->plugin_loader, "hardcoded-featured", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "hardcoded-kind", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "hardcoded-popular", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "hardcoded-ratings", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "hardcoded-screenshots", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "hardcoded-menu-spec", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "local-ratings", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "packagekit", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "packagekit-refine", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "packagekit-history", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "packagekit-offline", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "appstream", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "desktopdb", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "datadir-apps", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "datadir-filename", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "datadir-filename-local", TRUE);
+
+       /* show the priority of each plugin */
+       gs_plugin_loader_dump_state (app->plugin_loader);
+
+       /* setup UI */
+       app->shell = gs_shell_new ();
+
+       app->cancellable = g_cancellable_new ();
+
+       window = gs_shell_setup (app->shell, app->plugin_loader, app->cancellable);
+       gtk_application_add_window (GTK_APPLICATION (app), window);
+
+       g_signal_connect_swapped (app->shell, "loaded",
+                                 G_CALLBACK (gtk_window_present), window);
+}
+
+static void
 about_activated (GSimpleAction *action,
                 GVariant      *parameter,
                 gpointer       app)
@@ -75,6 +151,8 @@ about_activated (GSimpleAction *action,
        GList *windows;
        GtkWindow *parent = NULL;
 
+       gs_application_initialize_ui (app);
+
        windows = gtk_application_get_windows (GTK_APPLICATION (app));
        if (windows)
                parent = windows->data;
@@ -105,7 +183,14 @@ quit_activated (GSimpleAction *action,
                GVariant      *parameter,
                gpointer       app)
 {
-       g_application_quit (G_APPLICATION (app));
+       GList *windows;
+       GtkWidget *window;
+
+       windows = gtk_application_get_windows (GTK_APPLICATION (app));
+       if (windows) {
+               window = windows->data;
+               gtk_widget_hide (window);
+       }
 }
 
 static void
@@ -115,6 +200,15 @@ set_mode_activated (GSimpleAction *action,
 {
        GsApplication *app = GS_APPLICATION (data);
        const gchar *mode;
+       GList *windows;
+       GtkWindow *window = NULL;
+
+       gs_application_initialize_ui (app);
+       windows = gtk_application_get_windows (GTK_APPLICATION (app));
+       if (windows) {
+               window = windows->data;
+               gtk_window_present (window);
+       }
 
        mode = g_variant_get_string (parameter, NULL);
        if (g_strcmp0 (mode, "updates") == 0) {
@@ -139,81 +233,15 @@ static GActionEntry actions[] = {
 static void
 gs_application_startup (GApplication *application)
 {
-       GsApplication *app = GS_APPLICATION (application);
-       GtkBuilder *builder;
-       GMenuModel *app_menu;
-       GtkWindow *window;
-       GFile *file;
-       GError *error = NULL;
-
        G_APPLICATION_CLASS (gs_application_parent_class)->startup (application);
 
        notify_init ("gnome-software");
 
        g_type_ensure (GS_TYPE_BOX);
 
-       gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (),
-                                          DATADIR "/gnome-software/icons/hicolor");
-
-       /* set up the app menu */
-       g_action_map_add_action_entries (G_ACTION_MAP (app),
+       g_action_map_add_action_entries (G_ACTION_MAP (application),
                                         actions, G_N_ELEMENTS (actions),
                                         application);
-       builder = gtk_builder_new_from_resource ("/org/gnome/software/app-menu.ui");
-       app_menu = G_MENU_MODEL (gtk_builder_get_object (builder, "appmenu"));
-       gtk_application_set_app_menu (GTK_APPLICATION (app), app_menu);
-       g_object_unref (builder);
-
-       /* get CSS */
-       app->provider = gtk_css_provider_new ();
-       gtk_style_context_add_provider_for_screen (gdk_screen_get_default (),
-                                                  GTK_STYLE_PROVIDER (app->provider),
-                                                  GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
-       file = g_file_new_for_uri ("resource:///org/gnome/software/gtk-style.css");
-       gtk_css_provider_load_from_file (app->provider, file, NULL);
-       g_object_unref (file);
-
-       /* setup pk */
-       app->task = pk_task_new ();
-       g_object_set (app->task, "background", FALSE, NULL);
-
-       /* setup plugins */
-       app->plugin_loader = gs_plugin_loader_new ();
-       gs_plugin_loader_set_location (app->plugin_loader, NULL);
-       if (!gs_plugin_loader_setup (app->plugin_loader, &error)) {
-               g_warning ("Failed to setup plugins: %s", error->message);
-               exit (1);
-       }
-       gs_plugin_loader_set_enabled (app->plugin_loader, "hardcoded-featured", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "hardcoded-kind", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "hardcoded-popular", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "hardcoded-ratings", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "hardcoded-screenshots", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "hardcoded-menu-spec", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "local-ratings", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "packagekit", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "packagekit-refine", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "packagekit-history", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "packagekit-offline", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "appstream", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "desktopdb", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "datadir-apps", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "datadir-filename", TRUE);
-       gs_plugin_loader_set_enabled (app->plugin_loader, "datadir-filename-local", TRUE);
-
-       /* show the priority of each plugin */
-       gs_plugin_loader_dump_state (app->plugin_loader);
-
-       /* setup UI */
-       app->shell = gs_shell_new ();
-
-       app->cancellable = g_cancellable_new ();
-
-       window = gs_shell_setup (app->shell, app->plugin_loader, app->cancellable);
-       gtk_application_add_window (GTK_APPLICATION (app), window);
-
-       g_signal_connect_swapped (app->shell, "loaded",
-                                 G_CALLBACK (gtk_window_present), window);
 }
 
 static void
@@ -250,6 +278,7 @@ gs_application_finalize (GObject *object)
        g_clear_object (&app->cancellable);
        g_clear_object (&app->shell);
        g_clear_object (&app->provider);
+
        G_OBJECT_CLASS (gs_application_parent_class)->finalize (object);
 }