diff options
Diffstat (limited to 'modules/offline-alert/evolution-offline-alert.c')
| -rw-r--r-- | modules/offline-alert/evolution-offline-alert.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/modules/offline-alert/evolution-offline-alert.c b/modules/offline-alert/evolution-offline-alert.c new file mode 100644 index 0000000000..8b1de84d6c --- /dev/null +++ b/modules/offline-alert/evolution-offline-alert.c @@ -0,0 +1,221 @@ +/* + * evolution-offline-alert.c + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) version 3. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with the program; if not, see <http://www.gnu.org/licenses/> + * + */ + +#include <shell/e-shell-view.h> +#include <shell/e-shell-window-actions.h> +#include <e-util/e-alert-sink.h> +#include <e-util/e-extension.h> + +/* Standard GObject macros */ +#define E_TYPE_OFFLINE_ALERT \ + (e_offline_alert_get_type ()) +#define E_OFFLINE_ALERT(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST \ + ((obj), E_TYPE_OFFLINE_ALERT, EOfflineAlert)) + +typedef struct _EOfflineAlert EOfflineAlert; +typedef struct _EOfflineAlertClass EOfflineAlertClass; + +struct _EOfflineAlert { + EExtension parent; + gpointer alert; /* weak pointer */ +}; + +struct _EOfflineAlertClass { + EExtensionClass parent_class; +}; + +/* Module Entry Points */ +void e_module_load (GTypeModule *type_module); +void e_module_unload (GTypeModule *type_module); + +/* Forward Declarations */ +GType e_offline_alert_get_type (void); + +G_DEFINE_DYNAMIC_TYPE (EOfflineAlert, e_offline_alert, E_TYPE_EXTENSION) + +static EShell * +offline_alert_get_shell (EOfflineAlert *extension) +{ + EExtensible *extensible; + + extensible = e_extension_get_extensible (E_EXTENSION (extension)); + + return E_SHELL (extensible); +} + +static void +offline_alert_online_cb (EShell *shell, + GParamSpec *pspec, + EOfflineAlert *extension) +{ + if (!e_shell_get_online (shell)) + return; + + if (extension->alert != NULL) + e_alert_response (extension->alert, GTK_RESPONSE_OK); +} + +static void +offline_alert_network_available_cb (EShell *shell, + GParamSpec *pspec, + EOfflineAlert *extension) +{ + GList *list, *iter; + + if (e_shell_get_network_available (shell)) + return; + + g_return_if_fail (extension->alert == NULL); + + extension->alert = e_alert_new ("offline-alert:no-network", NULL); + + g_object_add_weak_pointer ( + G_OBJECT (extension->alert), &extension->alert); + + /* Broadcast the alert to all EShellWindows. */ + list = e_shell_get_watched_windows (shell); + for (iter = list; iter != NULL; iter = g_list_next (iter)) { + GtkWidget *window = iter->data; + + if (!E_IS_SHELL_WINDOW (window)) + continue; + + e_alert_sink_submit_alert (window, extension->alert); + } + + g_object_unref (extension->alert); +} + +static void +offline_alert_window_created_cb (EShell *shell, + GtkWindow *window, + EOfflineAlert *extension) +{ + GtkAction *action; + + if (!E_IS_SHELL_WINDOW (window)) + return; + + /* Connect these signals after we have the first EShellWindow + * to avoid false-positive signals during EShell initialization. */ + + g_signal_connect ( + shell, "notify::online", + G_CALLBACK (offline_alert_online_cb), extension); + + g_signal_connect ( + shell, "notify::network-available", + G_CALLBACK (offline_alert_network_available_cb), extension); + + g_signal_handlers_disconnect_by_func ( + shell, offline_alert_window_created_cb, extension); + + if (e_shell_get_online (shell)) + return; + + if (!e_shell_get_network_available (shell)) { + g_object_notify (G_OBJECT (shell), "network-available"); + return; + } + + g_return_if_fail (extension->alert == NULL); + + /* This alert only shows at startup, not when the user + * chooses to work offline. That's why we only wanted + * the first EShellWindow. */ + + action = E_SHELL_WINDOW_ACTION_WORK_ONLINE (window); + + extension->alert = e_alert_new ("offline-alert:offline", NULL); + e_alert_add_action (extension->alert, action, GTK_RESPONSE_NONE); + + g_object_add_weak_pointer ( + G_OBJECT (extension->alert), &extension->alert); + + e_alert_sink_submit_alert (GTK_WIDGET (window), extension->alert); + + g_object_unref (extension->alert); +} + +static void +offline_alert_dispose (GObject *object) +{ + EOfflineAlert *extension; + + extension = E_OFFLINE_ALERT (object); + + if (extension->alert != NULL) { + g_object_remove_weak_pointer ( + G_OBJECT (extension->alert), &extension->alert); + extension->alert = NULL; + } + + /* Chain up to parent's dispose() method. */ + G_OBJECT_CLASS (e_offline_alert_parent_class)->dispose (object); +} + +static void +offline_alert_constructed (GObject *object) +{ + EShell *shell; + EOfflineAlert *extension; + + extension = E_OFFLINE_ALERT (object); + shell = offline_alert_get_shell (extension); + + /* Watch for the first EShellWindow. */ + g_signal_connect ( + shell, "window-created", + G_CALLBACK (offline_alert_window_created_cb), extension); +} + +static void +e_offline_alert_class_init (EOfflineAlertClass *class) +{ + GObjectClass *object_class; + EExtensionClass *extension_class; + + object_class = G_OBJECT_CLASS (class); + object_class->dispose = offline_alert_dispose; + object_class->constructed = offline_alert_constructed; + + extension_class = E_EXTENSION_CLASS (class); + extension_class->extensible_type = E_TYPE_SHELL; +} + +static void +e_offline_alert_class_finalize (EOfflineAlertClass *class) +{ +} + +static void +e_offline_alert_init (EOfflineAlert *extension) +{ +} + +G_MODULE_EXPORT void +e_module_load (GTypeModule *type_module) +{ + e_offline_alert_register_type (type_module); +} + +G_MODULE_EXPORT void +e_module_unload (GTypeModule *type_module) +{ +} |