[modest] / src / modest-main.c

/* Copyright (c) 2006, Nokia Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * * Neither the name of the Nokia Corporation nor the names of its
 *   contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <config.h>
#include <gdk/gdk.h>
#include <string.h>
#include <glib.h>
#include "modest-runtime.h"
#include "modest-init.h"
#include "modest-platform.h"
#include "modest-ui-actions.h"

static gboolean show_ui = FALSE;
static gint shutdown_timeout = 0;
static GOptionEntry option_entries [] =
{
        { "show-ui", 's', 0, G_OPTION_ARG_NONE, &show_ui, "Show UI immediately, so no wait for DBUS activation", NULL },
        { "shutdown-timeout", 't', 0, G_OPTION_ARG_INT, &shutdown_timeout, "Timeout in minutes for running Modest in prestart mode", NULL },
        { NULL }
};

static guint shutdown_timeout_id = 0;

typedef struct {
        gulong queue_handler;
        gulong window_list_handler;
        gulong get_password_handler;
} MainSignalHandlers;

static gboolean
on_idle_exit_modest (gpointer data)
{
        MainSignalHandlers *handlers;
        ModestMailOperationQueue *mail_op_queue;

        /* Protect the Gtk calls */
        gdk_threads_enter ();
        mail_op_queue = modest_runtime_get_mail_operation_queue ();

        if (modest_mail_operation_queue_running_shutdown (mail_op_queue)) {

                /* Disconnect signals. Will be freed by the destroy notify */
                handlers = (MainSignalHandlers *) data;
                g_signal_handler_disconnect (modest_runtime_get_mail_operation_queue (),
                                             handlers->queue_handler);
                g_signal_handler_disconnect (modest_runtime_get_window_mgr (),
                                             handlers->window_list_handler);
                g_signal_handler_disconnect (modest_runtime_get_account_store (),
                                             handlers->get_password_handler);
                g_free (handlers);

                /* Wait for remaining tasks */
                while (gtk_events_pending ())
                        gtk_main_iteration ();

                gtk_main_quit ();
        } else {
                ModestMailOperation *mail_op;
                mail_op = modest_mail_operation_new (NULL);
                modest_mail_operation_queue_add (mail_op_queue, mail_op);
                modest_mail_operation_shutdown (mail_op, modest_runtime_get_account_store ());
                g_object_unref (mail_op);
        }

        gdk_threads_leave ();

        return FALSE;
}

static void
on_queue_empty (ModestMailOperationQueue *queue,
                gpointer user_data)
{
        ModestWindowMgr *mgr = modest_runtime_get_window_mgr ();

        if (!modest_runtime_get_allow_shutdown ())
                return;

        /* Exit if the queue is empty and there are no more
           windows. We can exit as well if the main window is hidden
           and it's the only one */
        if (modest_window_mgr_get_num_windows (mgr) == 0)
                g_idle_add_full (G_PRIORITY_LOW, on_idle_exit_modest, user_data, NULL);
}

static void
on_window_list_empty (ModestWindowMgr *window_mgr,
                      gpointer user_data)
{
        ModestMailOperationQueue *queue = modest_runtime_get_mail_operation_queue ();

        if (!modest_runtime_get_allow_shutdown ())
                return;

        /* Exit if there are no more windows and the queue is empty */
        if (modest_mail_operation_queue_num_elements (queue) == 0)
                g_idle_add_full (G_PRIORITY_LOW, on_idle_exit_modest, user_data, NULL);
}

static gboolean
shutdown_timeout_handler (gpointer userdata)
{
        modest_runtime_set_allow_shutdown (TRUE);
        return FALSE;
}

int
main (int argc, char *argv[])
{
        /* Usually we don't show the application at first,
         * because we wait for the top_application D-Bus method to
         * be called. But that's annoying when starting from the
         * command line.: */
        gboolean show_ui_without_top_application_method = FALSE;
        int retval  = 0;
        MainSignalHandlers *handlers;
        ModestTnyAccountStore *acc_store;

        GError *error;
        GOptionContext *context;

        context = g_option_context_new ("- Modest email client");
        g_option_context_add_main_entries (context, option_entries, GETTEXT_PACKAGE);
        g_option_context_add_group (context, gtk_get_option_group (TRUE));
        if (!g_option_context_parse (context, &argc, &argv, &error)) {
                g_print ("option parsing failed: %s\n", error->message);
                exit (1);
        }


        show_ui_without_top_application_method = show_ui;

        if (!show_ui_without_top_application_method) {
                g_print ("modest: use 'modest -s' to start from cmdline  with UI\n");
        }

        if (!g_thread_supported())
                g_thread_init (NULL);

        gdk_threads_init ();
        gdk_threads_enter ();

        if (!getenv("DISPLAY")) {
                g_printerr ("modest: DISPLAY env variable is not set\n");
                retval = 1;
                goto cleanup;
        }

        if (!gtk_init_check (&argc, &argv)) {
                g_printerr ("modest: failed to initialize gtk\n");
                retval = 1;
                goto cleanup;
        }

        if (!modest_init (argc, argv)) {
                g_printerr ("modest: cannot init modest\n");
                retval = 1;
                goto cleanup;
        }


        /* Create the account store & launch send queues */
        acc_store = modest_runtime_get_account_store ();
        modest_tny_account_store_start_send_queues (acc_store);

        handlers = g_malloc0 (sizeof (MainSignalHandlers));
        /* Connect to the "queue-emtpy" signal */
        handlers->queue_handler =
                g_signal_connect (modest_runtime_get_mail_operation_queue (),
                                  "queue-empty",
                                  G_CALLBACK (on_queue_empty),
                                  handlers);

        /* Connect to the "window-list-emtpy" signal */
        handlers->window_list_handler =
                g_signal_connect (modest_runtime_get_window_mgr (),
                                  "window-list-empty",
                                  G_CALLBACK (on_window_list_empty),
                                  handlers);

        /* Connect to the "password-requested" signal */
        handlers->get_password_handler =
                g_signal_connect (acc_store,
                                  "password_requested",
                                  G_CALLBACK (modest_ui_actions_on_password_requested),
                                  NULL);

        /* Usually, we only show the UI when we get the "top_application" D-Bus method.
         * This allows modest to start via D-Bus activation to provide a service,
         * without showing the UI.
         * The UI will be shown later (or just after starting if no otehr D-Bus method was used),
         * when we receive the "top_application" D-Bus method.
         */
        if (show_ui_without_top_application_method) {
                ModestWindow *window;
                ModestWindowMgr *mgr;

                modest_runtime_set_allow_shutdown (TRUE);
                mgr = modest_runtime_get_window_mgr();
                window = modest_window_mgr_show_initial_window (mgr);
                if (!window) {
                        g_printerr ("modest: failed to get main window instance\n");
                        retval = 1;
                        goto cleanup;
                }
                /* Remove new mail notifications if exist */
                modest_platform_remove_new_mail_notifications (FALSE);
        } else {
                if (shutdown_timeout > 0) {
                        modest_runtime_set_allow_shutdown (FALSE);
                        shutdown_timeout_id = g_timeout_add_seconds (shutdown_timeout * 60, shutdown_timeout_handler, NULL);
                }
        }

        gtk_main ();

cleanup:
        gdk_threads_leave ();

        if (!modest_init_uninit ()) {
                g_printerr ("modest: modest_init_uninit failed\n");
                retval = 1;
        }

        return retval;
}