2007-05-04 Murray Cumming <murrayc@murrayc.com>

[modest] / src / maemo / modest-main-window.c

diff --git a/src/maemo/modest-main-window.c b/src/maemo/modest-main-window.c
index fb45c74..7f0b1aa 100644 (file)
--- a/src/maemo/modest-main-window.c
+++ b/src/maemo/modest-main-window.c
@@ -53,6 +53,8 @@
 #include "modest-mail-operation.h"
 #include "modest-icon-names.h"
 #include "modest-progress-bar-widget.h"
 #include "modest-mail-operation.h"
 #include "modest-icon-names.h"
 #include "modest-progress-bar-widget.h"

+#include <hildon-widgets/hildon-program.h>
+#include "maemo/modest-osso-state-saving.h"

 
 /* 'private'/'protected' functions */
 static void modest_main_window_class_init    (ModestMainWindowClass *klass);
 
 /* 'private'/'protected' functions */
 static void modest_main_window_class_init    (ModestMainWindowClass *klass);

@@ -413,6 +415,44 @@ sync_accounts_cb (ModestMainWindow *win)
        return FALSE; /* Do not call this idle handler again. */
 }
 
        return FALSE; /* Do not call this idle handler again. */
 }
 

+static void on_hildon_program_is_topmost_notify(GObject *self,
+       GParamSpec *propert_param, gpointer user_data)
+{
+       HildonProgram *app = HILDON_PROGRAM (self);
+       
+       /*
+       ModestWindow* self = MODEST_WINDOW(user_data);
+       */
+       
+       /* Note that use of hildon_program_set_can_hibernate() 
+        * is generally referred to as "setting the killable flag", 
+        * though hibernation does not seem equal to death.
+        * murrayc */
+                
+       if (hildon_program_get_is_topmost (app)) {
+               /* Prevent hibernation when the progam comes to the foreground,
+                * because hibernation should only happen when the application 
+                * is in the background: */
+               hildon_program_set_can_hibernate (app, FALSE);
+       } else {
+               /* Allow hibernation if the program has gone to the background: */
+               
+               /* However, prevent hibernation while the settings are being changed: */
+               gboolean settings_dialog_is_open = FALSE;
+               
+               if (settings_dialog_is_open)
+                       hildon_program_set_can_hibernate (app, FALSE);
+               else {
+                       
+                       /* Allow hibernation, after saving the state: */
+                       modest_osso_save_state();
+                       hildon_program_set_can_hibernate (app, TRUE);
+               }
+       }
+       
+}
+
+

 
 ModestWindow*
 modest_main_window_new (void)
 
 ModestWindow*
 modest_main_window_new (void)

@@ -548,6 +588,27 @@ modest_main_window_new (void)
        /* do send & receive when we are idle */
        g_idle_add ((GSourceFunc)sync_accounts_cb, self);
        
        /* do send & receive when we are idle */
        g_idle_add ((GSourceFunc)sync_accounts_cb, self);
        

+
+       HildonProgram *app = hildon_program_get_instance ();
+       hildon_program_add_window (app, HILDON_WINDOW (self));
+       
+       /* Register HildonProgram  signal handlers: */
+       /* These are apparently deprecated, according to the 
+        * "HildonApp/HildonAppView to HildonProgram/HildonWindow migration guide",
+        * though the API reference does not mention that:
+        *
+       g_signal_connect (G_OBJECT(app), "topmost_status_lose",
+               G_CALLBACK (on_hildon_program_save_state), self);
+       g_signal_connect (G_OBJECT(app), "topmost_status_acquire",
+               G_CALLBACK (on_hildon_program_status_acquire), self);
+    */
+       g_signal_connect (G_OBJECT(app), "notify::is-topmost",
+               G_CALLBACK (on_hildon_program_is_topmost_notify), self);
+               
+       /* Load previous osso state, for instance if we are being restored from 
+        * hibernation:  */
+       modest_osso_load_state();
+

        return MODEST_WINDOW(self);
 }
 
        return MODEST_WINDOW(self);
 }