Code review: check return value of run account setup wizard
[modest] / src / modest-main.c
1 /* Copyright (c) 2006, Nokia Corporation
2  * All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are
6  * met:
7  *
8  * * Redistributions of source code must retain the above copyright
9  *   notice, this list of conditions and the following disclaimer.
10  * * Redistributions in binary form must reproduce the above copyright
11  *   notice, this list of conditions and the following disclaimer in the
12  *   documentation and/or other materials provided with the distribution.
13  * * Neither the name of the Nokia Corporation nor the names of its
14  *   contributors may be used to endorse or promote products derived from
15  *   this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29
30 #include <config.h>
31 #include <gdk/gdk.h>
32 #include <string.h>
33 #include <glib.h>
34 #include "modest-runtime.h"
35 #include "modest-init.h"
36 #include "modest-platform.h"
37 #include "modest-ui-actions.h"
38
39 typedef struct {
40         gulong queue_handler;
41         gulong window_list_handler;
42         gulong get_password_handler;
43 } MainSignalHandlers;
44
45 static gboolean
46 on_idle_exit_modest (gpointer data)
47 {
48         MainSignalHandlers *handlers;
49         ModestMailOperationQueue *mail_op_queue;
50
51         /* Protect the Gtk calls */
52         gdk_threads_enter ();
53         mail_op_queue = modest_runtime_get_mail_operation_queue ();
54
55         if (modest_mail_operation_queue_running_shutdown (mail_op_queue)) {
56
57                 /* Disconnect signals. Will be freed by the destroy notify */
58                 handlers = (MainSignalHandlers *) data;
59                 g_signal_handler_disconnect (modest_runtime_get_mail_operation_queue (),
60                                              handlers->queue_handler);
61                 g_signal_handler_disconnect (modest_runtime_get_window_mgr (),
62                                              handlers->window_list_handler);
63                 g_signal_handler_disconnect (modest_runtime_get_account_store (),
64                                              handlers->get_password_handler);
65                 g_free (handlers);
66
67                 /* Wait for remaining tasks */
68                 while (gtk_events_pending ())
69                         gtk_main_iteration ();
70
71                 gtk_main_quit ();
72         } else {
73                 ModestMailOperation *mail_op;
74                 mail_op = modest_mail_operation_new (NULL);
75                 modest_mail_operation_queue_add (mail_op_queue, mail_op);
76                 modest_mail_operation_shutdown (mail_op, modest_runtime_get_account_store ());
77                 g_object_unref (mail_op);
78         }
79
80         gdk_threads_leave ();
81
82         return FALSE;
83 }
84
85 static void
86 on_queue_empty (ModestMailOperationQueue *queue,
87                 gpointer user_data)
88 {
89         ModestWindowMgr *mgr = modest_runtime_get_window_mgr ();
90
91         /* Exit if the queue is empty and there are no more
92            windows. We can exit as well if the main window is hidden
93            and it's the only one */
94         if (modest_window_mgr_get_num_windows (mgr) == 0)
95                 g_idle_add_full (G_PRIORITY_LOW, on_idle_exit_modest, user_data, NULL);
96 }
97
98 static void
99 on_window_list_empty (ModestWindowMgr *window_mgr,
100                       gpointer user_data)
101 {
102         ModestMailOperationQueue *queue = modest_runtime_get_mail_operation_queue ();
103
104         /* Exit if there are no more windows and the queue is empty */
105         if (modest_mail_operation_queue_num_elements (queue) == 0)
106                 g_idle_add_full (G_PRIORITY_LOW, on_idle_exit_modest, user_data, NULL);
107 }
108
109 int
110 main (int argc, char *argv[])
111 {
112         /* Usually we don't show the application at first,
113          * because we wait for the top_application D-Bus method to
114          * be called. But that's annoying when starting from the
115          * command line.: */
116         gboolean show_ui_without_top_application_method = FALSE;
117         int retval  = 0;
118         MainSignalHandlers *handlers;
119
120         if (argc >= 2) {
121                 if (strcmp (argv[1], "showui") == 0)
122                         show_ui_without_top_application_method = TRUE;
123         }
124
125         if (!show_ui_without_top_application_method) {
126                 g_print ("modest: use 'modest showui' to start from cmdline  with UI\n");
127         }
128
129         if (!g_thread_supported())
130                 g_thread_init (NULL);
131
132         gdk_threads_init ();
133         gdk_threads_enter ();
134
135         if (!getenv("DISPLAY")) {
136                 g_printerr ("modest: DISPLAY env variable is not set\n");
137                 retval = 1;
138                 goto cleanup;
139         }
140
141         if (!gtk_init_check (&argc, &argv)) {
142                 g_printerr ("modest: failed to initialize gtk\n");
143                 retval = 1;
144                 goto cleanup;
145         }
146
147         if (!modest_init (argc, argv)) {
148                 g_printerr ("modest: cannot init modest\n");
149                 retval = 1;
150                 goto cleanup;
151         }
152
153         handlers = g_malloc0 (sizeof (MainSignalHandlers));
154         /* Connect to the "queue-emtpy" signal */
155         handlers->queue_handler =
156                 g_signal_connect (modest_runtime_get_mail_operation_queue (),
157                                   "queue-empty",
158                                   G_CALLBACK (on_queue_empty),
159                                   handlers);
160
161         /* Connect to the "window-list-emtpy" signal */
162         handlers->window_list_handler =
163                 g_signal_connect (modest_runtime_get_window_mgr (),
164                                   "window-list-empty",
165                                   G_CALLBACK (on_window_list_empty),
166                                   handlers);
167
168         /* Connect to the "password-requested" signal */
169         handlers->get_password_handler =
170                 g_signal_connect (modest_runtime_get_account_store (),
171                                   "password_requested",
172                                   G_CALLBACK (modest_ui_actions_on_password_requested),
173                                   NULL);
174
175         /* Usually, we only show the UI when we get the "top_application" D-Bus method.
176          * This allows modest to start via D-Bus activation to provide a service,
177          * without showing the UI.
178          * The UI will be shown later (or just after starting if no otehr D-Bus method was used),
179          * when we receive the "top_application" D-Bus method.
180          */
181         if (show_ui_without_top_application_method) {
182                 ModestWindow *window;
183                 ModestWindowMgr *mgr;
184
185                 mgr = modest_runtime_get_window_mgr();
186                 window = modest_window_mgr_show_initial_window (mgr);
187                 if (!window) {
188                         g_printerr ("modest: failed to get main window instance\n");
189                         retval = 1;
190                         goto cleanup;
191                 }
192                 /* Remove new mail notifications if exist */
193                 modest_platform_remove_new_mail_notifications (FALSE);
194         }
195
196         gtk_main ();
197
198 cleanup:
199         gdk_threads_leave ();
200
201         if (!modest_init_uninit ()) {
202                 g_printerr ("modest: modest_init_uninit failed\n");
203                 retval = 1;
204         }
205
206         return retval;
207 }