merged in the device menu split out

1 files changed, 636 insertions, 0 deletions

diff --git a/src/device-menu-mgr.c b/src/device-menu-mgr.c
new file mode 100644
index 0000000..0114b92
--- /dev/null
+++ b/src/device-menu-mgr.c
@@ -0,0 +1,636 @@
+/*
+Copyright 2011 Canonical Ltd.
+
+Authors:
+    Conor Curran <conor.curran@canonical.com>
+
+This program is free software: you can redistribute it and/or modify it 
+under the terms of the GNU General Public License version 3, as published 
+by the Free Software Foundation.
+
+This program is distributed in the hope that it will be useful, but 
+WITHOUT ANY WARRANTY; without even the implied warranties of 
+MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR 
+PURPOSE.  See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along 
+with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "device-menu-mgr.h"
+#include "gconf-helper.h"
+#include "dbus-shared-names.h"
+#include "dbusmenu-shared.h"
+#include "lock-helper.h"
+#include "upower-client.h"
+
+#define UP_ADDRESS    "org.freedesktop.UPower"
+#define UP_OBJECT     "/org/freedesktop/UPower"
+#define UP_INTERFACE  "org.freedesktop.UPower"
+
+#define EXTRA_LAUNCHER_DIR "/usr/share/indicators/session/applications"
+
+struct _DeviceMenuMgr
+{
+	GObject parent_instance;
+  DbusmenuMenuitem* root_item;
+  SessionDbus* session_dbus_interface;  
+};
+
+static GConfClient       *gconf_client  = NULL;
+static DbusmenuMenuitem  *lock_menuitem = NULL;
+
+static DBusGProxyCall * suspend_call = NULL;
+static DBusGProxyCall * hibernate_call = NULL;
+
+static DbusmenuMenuitem * hibernate_mi = NULL;
+static DbusmenuMenuitem * suspend_mi = NULL;
+static DbusmenuMenuitem * logout_mi = NULL;
+static DbusmenuMenuitem * restart_mi = NULL;
+static DbusmenuMenuitem * shutdown_mi = NULL;
+
+static gboolean can_hibernate = TRUE;
+static gboolean can_suspend = TRUE;
+static gboolean allow_hibernate = TRUE;
+static gboolean allow_suspend = TRUE;
+
+static DBusGProxy * up_main_proxy = NULL;
+static DBusGProxy * up_prop_proxy = NULL;
+
+static void device_menu_mgr_ensure_gconf_client (DeviceMenuMgr* self);
+static void setup_restart_watch (DeviceMenuMgr* self);
+static void setup_up (DeviceMenuMgr* self);
+static void device_menu_mgr_rebuild_items (DeviceMenuMgr *self);
+static void lock_if_possible (DeviceMenuMgr* self);
+static void machine_sleep_with_context (DeviceMenuMgr* self,
+                                        gchar* type);
+static void
+machine_sleep_from_hibernate (DbusmenuMenuitem * mi,
+                              guint timestamp,
+                              gpointer userdata);
+static void
+machine_sleep_from_suspend (DbusmenuMenuitem * mi,
+                            guint timestamp,
+                            gpointer userdata);
+
+G_DEFINE_TYPE (DeviceMenuMgr, device_menu_mgr, G_TYPE_OBJECT);
+
+static void
+device_menu_mgr_init (DeviceMenuMgr *self)
+{
+  self->root_item = dbusmenu_menuitem_new ();  
+  setup_restart_watch(self);
+	setup_up(self);  
+	g_idle_add(lock_screen_setup, NULL);  
+}
+
+static void
+device_menu_mgr_finalize (GObject *object)
+{
+	/* TODO: Add deinitalization code here */
+	G_OBJECT_CLASS (device_menu_mgr_parent_class)->finalize (object);
+}
+
+// TODO refactor into one helper method for both menu mgrs.
+static void
+device_menu_mgr_class_init (DeviceMenuMgrClass *klass)
+{
+	GObjectClass* object_class = G_OBJECT_CLASS (klass);
+	//GObjectClass* parent_class = G_OBJECT_CLASS (klass);
+	object_class->finalize = device_menu_mgr_finalize;
+}
+
+
+static void
+lockdown_changed (GConfClient *client,
+                  guint        cnxd_id,
+                  GConfEntry  *entry,
+                  gpointer     user_data)
+{
+  DeviceMenuMgr* self = DEVICE_MENU_MGR (user_data);
+	GConfValue  *value = gconf_entry_get_value (entry);
+	const gchar *key   = gconf_entry_get_key (entry);
+
+	if (value == NULL || key == NULL) {
+		return;
+	}
+
+	if (g_strcmp0 (key, LOCKDOWN_KEY_USER) == 0 ||
+      g_strcmp0 (key, LOCKDOWN_KEY_SCREENSAVER) == 0) {
+		device_menu_mgr_rebuild_items(self);
+	}
+
+	return;
+}
+
+static void
+keybinding_changed (GConfClient *client,
+                    guint        cnxd_id,
+                    GConfEntry  *entry,
+                    gpointer     user_data)
+{
+	GConfValue  *value = gconf_entry_get_value (entry);
+	const gchar *key   = gconf_entry_get_key (entry);
+
+	if (value == NULL || key == NULL) {
+		return;
+	}
+
+	if (g_strcmp0 (key, KEY_LOCK_SCREEN) == 0) {
+		g_debug("Keybinding changed to: %s", gconf_value_get_string(value));
+		if (lock_menuitem != NULL) {
+			dbusmenu_menuitem_property_set_shortcut_string (lock_menuitem,
+                                                      gconf_value_get_string(value));
+		}
+	}
+	return;
+}
+
+/* Check to see if the lockdown key is protecting from
+   locking the screen.  If not, lock it. */
+static void
+lock_if_possible (DeviceMenuMgr* self) {
+	device_menu_mgr_ensure_gconf_client (self);
+
+	if (!gconf_client_get_bool (gconf_client, LOCKDOWN_KEY_SCREENSAVER, NULL)) {
+		lock_screen (NULL, 0, NULL);
+	}
+	return;
+}
+
+/* A return from the command to sleep the system.  Make sure
+   that we unthrottle the screensaver. */
+static void
+sleep_response (DBusGProxy * proxy, DBusGProxyCall * call, gpointer data)
+{
+	screensaver_unthrottle();
+	return;
+}
+
+static void
+machine_sleep_from_suspend (DbusmenuMenuitem * mi,
+                            guint timestamp,
+                            gpointer userdata)
+{
+  DeviceMenuMgr* self = DEVICE_MENU_MGR (userdata);
+  machine_sleep_with_context (self, "Suspend");
+}
+
+static void
+machine_sleep_from_hibernate (DbusmenuMenuitem * mi,
+                              guint timestamp,
+                              gpointer userdata)
+{
+  DeviceMenuMgr* self = DEVICE_MENU_MGR (userdata);
+  machine_sleep_with_context (self, "Hibernate");
+}
+
+/* Let's put this machine to sleep, with some info on how
+   it should sleep.  */
+static void
+machine_sleep_with_context (DeviceMenuMgr* self, gchar* type)
+{
+	if (up_main_proxy == NULL) {
+		g_warning("Can not %s as no upower proxy", type);
+	}
+
+	screensaver_throttle(type);
+	lock_if_possible (self);
+
+	dbus_g_proxy_begin_call(up_main_proxy,
+	                        type,
+	                        sleep_response,
+	                        NULL,
+	                        NULL,
+	                        G_TYPE_INVALID);
+
+	return;
+}
+
+/* A response to getting the suspend property */
+static void
+suspend_prop_cb (DBusGProxy * proxy, DBusGProxyCall * call, gpointer userdata)
+{
+	suspend_call = NULL;
+  DeviceMenuMgr* self = DEVICE_MENU_MGR (userdata);
+  
+	GValue candoit = {0};
+	GError * error = NULL;
+	dbus_g_proxy_end_call(proxy, call, &error, G_TYPE_VALUE, &candoit, G_TYPE_INVALID);
+	if (error != NULL) {
+		g_warning("Unable to check suspend: %s", error->message);
+		g_error_free(error);
+		return;
+	}
+	g_debug("Got Suspend: %s", g_value_get_boolean(&candoit) ? "true" : "false");
+
+	gboolean local_can_suspend = g_value_get_boolean(&candoit);
+	if (local_can_suspend != can_suspend) {
+		can_suspend = local_can_suspend;
+		device_menu_mgr_rebuild_items(self);
+	}
+
+	return;
+}
+
+/* Response to getting the hibernate property */
+static void
+hibernate_prop_cb (DBusGProxy * proxy, DBusGProxyCall * call, gpointer userdata)
+{
+	hibernate_call = NULL;
+  DeviceMenuMgr* self = DEVICE_MENU_MGR (userdata);
+
+	GValue candoit = {0};
+	GError * error = NULL;
+	dbus_g_proxy_end_call(proxy, call, &error, G_TYPE_VALUE, &candoit, G_TYPE_INVALID);
+	if (error != NULL) {
+		g_warning("Unable to check hibernate: %s", error->message);
+		g_error_free(error);
+		return;
+	}
+	g_debug("Got Hibernate: %s", g_value_get_boolean(&candoit) ? "true" : "false");
+
+	gboolean local_can_hibernate = g_value_get_boolean(&candoit);
+	if (local_can_hibernate != can_hibernate) {
+		can_hibernate = local_can_hibernate;
+		device_menu_mgr_rebuild_items(self);
+	}
+}
+
+/* A signal that we need to recheck to ensure we can still
+   hibernate and/or suspend */
+static void
+up_changed_cb (DBusGProxy * proxy, gpointer user_data)
+{
+	/* Start Async call to see if we can hibernate */
+	if (suspend_call == NULL) {
+		suspend_call = dbus_g_proxy_begin_call(up_prop_proxy,
+		                                       "Get",
+		                                       suspend_prop_cb,
+		                                       user_data,
+		                                       NULL,
+		                                       G_TYPE_STRING,
+		                                       UP_INTERFACE,
+		                                       G_TYPE_STRING,
+		                                       "CanSuspend",
+		                                       G_TYPE_INVALID,
+		                                       G_TYPE_VALUE,
+		                                       G_TYPE_INVALID);
+	}
+
+	/* Start Async call to see if we can suspend */
+	if (hibernate_call == NULL) {
+		hibernate_call = dbus_g_proxy_begin_call(up_prop_proxy,
+		                                         "Get",
+		                                         hibernate_prop_cb,
+		                                         user_data,
+		                                         NULL,
+		                                         G_TYPE_STRING,
+		                                         UP_INTERFACE,
+		                                         G_TYPE_STRING,
+		                                         "CanHibernate",
+		                                         G_TYPE_INVALID,
+		                                         G_TYPE_VALUE,
+		                                         G_TYPE_INVALID);
+	}
+}
+/* Handle the callback from the allow functions to check and
+   see if we're changing the value, and if so, rebuilding the
+   menus based on that info. */
+static void
+allowed_suspend_cb (DBusGProxy *proxy,
+                    gboolean OUT_allowed,
+                    GError *error,
+                    gpointer userdata)
+{
+	if (error != NULL) {
+		g_warning("Unable to get information on what is allowed from UPower: %s",
+               error->message);
+		return;
+	}
+  
+	if (OUT_allowed != allow_suspend) {
+    allow_suspend = OUT_allowed;
+    device_menu_mgr_rebuild_items(DEVICE_MENU_MGR (userdata));
+  }
+}
+
+/* Handle the callback from the allow functions to check and
+   see if we're changing the value, and if so, rebuilding the
+   menus based on that info. */
+static void
+allowed_hibernate_cb (DBusGProxy *proxy,
+                      gboolean OUT_allowed,
+                      GError *error,
+                      gpointer userdata)
+{
+	if (error != NULL) {
+		g_warning("Unable to get information on what is allowed from UPower: %s",
+               error->message);
+		return;
+	}
+  
+	if (OUT_allowed != allow_hibernate) {
+    allow_hibernate = OUT_allowed;
+    device_menu_mgr_rebuild_items(DEVICE_MENU_MGR (userdata));
+  }
+}
+
+/* This function goes through and sets up what we need for
+   DKp checking.  We're even setting up the calls for the props
+   we need */
+static void
+setup_up (DeviceMenuMgr* self) {
+	DBusGConnection * bus = dbus_g_bus_get(DBUS_BUS_SYSTEM, NULL);
+	g_return_if_fail(bus != NULL);
+
+	if (up_main_proxy == NULL) {
+		up_main_proxy = dbus_g_proxy_new_for_name(bus,
+		                                           UP_ADDRESS,
+		                                           UP_OBJECT,
+		                                           UP_INTERFACE);
+	}
+	g_return_if_fail(up_main_proxy != NULL);
+
+	if (up_prop_proxy == NULL) {
+		up_prop_proxy = dbus_g_proxy_new_for_name(bus,
+                                              UP_ADDRESS,
+                                              UP_OBJECT,
+                                              DBUS_INTERFACE_PROPERTIES);
+		/* Connect to changed signal */
+		dbus_g_proxy_add_signal(up_main_proxy,
+		                        "Changed",
+		                        G_TYPE_INVALID);
+
+		dbus_g_proxy_connect_signal(up_main_proxy,
+		                            "Changed",
+		                            G_CALLBACK(up_changed_cb),
+		                            self,
+		                            NULL);
+	}
+	g_return_if_fail(up_prop_proxy != NULL);
+
+
+	/* Force an original "changed" event */
+	up_changed_cb(up_main_proxy, self);
+
+	/* Check to see if these are getting blocked by PolicyKit */
+	org_freedesktop_UPower_suspend_allowed_async(up_main_proxy,
+	                                             allowed_suspend_cb,
+	                                             self);
+	org_freedesktop_UPower_hibernate_allowed_async(up_main_proxy,
+	                                               allowed_hibernate_cb,
+	                                               self);
+
+	return;
+}
+
+/* This is the function to show a dialog on actions that
+   can destroy data.  Currently it just calls the GTK version
+   but it seems that in the future it should figure out
+   what's going on and something better. */
+static void
+show_dialog (DbusmenuMenuitem * mi, guint timestamp, gchar * type)
+{
+	gchar * helper = g_build_filename(LIBEXECDIR, "gtk-logout-helper", NULL);
+	gchar * dialog_line = g_strdup_printf("%s --%s", helper, type);
+	g_free(helper);
+
+	g_debug("Showing dialog '%s'", dialog_line);
+
+	GError * error = NULL;
+	if (!g_spawn_command_line_async(dialog_line, &error)) {
+		g_warning("Unable to show dialog: %s", error->message);
+		g_error_free(error);
+	}
+
+	g_free(dialog_line);
+
+	return;
+}
+
+
+static void
+device_menu_mgr_rebuild_items (DeviceMenuMgr* self)
+{
+  gboolean can_lockscreen;
+
+  /* Make sure we have a valid GConf client, and build one
+     if needed */
+  device_menu_mgr_ensure_gconf_client (self);
+
+  can_lockscreen = !gconf_client_get_bool ( gconf_client,
+                                            LOCKDOWN_KEY_SCREENSAVER,
+                                            NULL);
+  /* Lock screen item */
+  if (can_lockscreen) {
+	lock_menuitem = dbusmenu_menuitem_new();
+	dbusmenu_menuitem_property_set (lock_menuitem,
+                                  DBUSMENU_MENUITEM_PROP_LABEL,
+                                  _("Lock Screen"));
+
+	gchar * shortcut = gconf_client_get_string(gconf_client, KEY_LOCK_SCREEN, NULL);
+	if (shortcut != NULL) {
+		g_debug("Lock screen shortcut: %s", shortcut);
+		dbusmenu_menuitem_property_set_shortcut_string(lock_menuitem, shortcut);
+		g_free(shortcut);
+	} else {
+		g_debug("Unable to get lock screen shortcut.");
+	}
+
+	g_signal_connect (G_OBJECT(lock_menuitem),
+                    DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
+                    G_CALLBACK(lock_screen), NULL);
+	dbusmenu_menuitem_child_append(self->root_item, lock_menuitem);
+  }
+
+	/* Start going through the session based items. */
+
+	logout_mi = dbusmenu_menuitem_new();
+	if (supress_confirmations()) {
+		dbusmenu_menuitem_property_set (logout_mi,
+                                    DBUSMENU_MENUITEM_PROP_LABEL,
+                                    _("Log Out"));
+	} else {
+		dbusmenu_menuitem_property_set (logout_mi,
+                                    DBUSMENU_MENUITEM_PROP_LABEL,
+                                    _("Log Out\342\200\246"));
+	}
+	dbusmenu_menuitem_property_set_bool (logout_mi,
+                                       DBUSMENU_MENUITEM_PROP_VISIBLE,
+                                       show_logout());
+	dbusmenu_menuitem_child_append(self->root_item, logout_mi);
+	g_signal_connect( G_OBJECT(logout_mi),
+                    DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
+                    G_CALLBACK(show_dialog), "logout");
+
+	if (can_suspend && allow_suspend) {
+		suspend_mi = dbusmenu_menuitem_new();
+		dbusmenu_menuitem_property_set (suspend_mi,
+                                    DBUSMENU_MENUITEM_PROP_LABEL,
+                                    _("Suspend"));
+		dbusmenu_menuitem_child_append (self->root_item, suspend_mi);
+		g_signal_connect( G_OBJECT(suspend_mi),
+                      DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
+                      G_CALLBACK(machine_sleep_from_suspend),
+                      self);
+	}
+
+	if (can_hibernate && allow_hibernate) {
+		hibernate_mi = dbusmenu_menuitem_new();
+		dbusmenu_menuitem_property_set (hibernate_mi,
+                                    DBUSMENU_MENUITEM_PROP_LABEL,
+                                    _("Hibernate"));
+		dbusmenu_menuitem_child_append(self->root_item, hibernate_mi);
+		g_signal_connect (G_OBJECT(hibernate_mi),
+                      DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
+                      G_CALLBACK(machine_sleep_from_hibernate), self);
+	}
+
+	restart_mi = dbusmenu_menuitem_new();
+	dbusmenu_menuitem_property_set (restart_mi,
+                                  DBUSMENU_MENUITEM_PROP_TYPE,
+                                  RESTART_ITEM_TYPE);
+	if (supress_confirmations()) {
+		dbusmenu_menuitem_property_set (restart_mi,
+                                    RESTART_ITEM_LABEL,
+                                    _("Restart"));
+	} else {
+		dbusmenu_menuitem_property_set (restart_mi,
+                                    RESTART_ITEM_LABEL,
+                                    _("Restart\342\200\246"));
+	}
+	dbusmenu_menuitem_property_set_bool (restart_mi,
+                                       DBUSMENU_MENUITEM_PROP_VISIBLE,
+                                       show_restart());
+	dbusmenu_menuitem_child_append(self->root_item, restart_mi);
+	g_signal_connect (G_OBJECT(restart_mi),
+                    DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
+                    G_CALLBACK(show_dialog), "restart");
+
+	shutdown_mi = dbusmenu_menuitem_new();
+	if (supress_confirmations()) {
+		dbusmenu_menuitem_property_set (shutdown_mi,
+                                    DBUSMENU_MENUITEM_PROP_LABEL,
+                                    _("Shut Down"));
+	} else {
+		dbusmenu_menuitem_property_set (shutdown_mi,
+                                    DBUSMENU_MENUITEM_PROP_LABEL,
+                                    _("Shut Down\342\200\246"));
+	}
+	dbusmenu_menuitem_property_set_bool (shutdown_mi,
+                                       DBUSMENU_MENUITEM_PROP_VISIBLE,
+                                       show_shutdown());
+	dbusmenu_menuitem_child_append (self->root_item, shutdown_mi);
+	g_signal_connect (G_OBJECT(shutdown_mi),
+                    DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
+                    G_CALLBACK(show_dialog), "shutdown");
+
+	RestartShutdownLogoutMenuItems * restart_shutdown_logout_mi = g_new0 (RestartShutdownLogoutMenuItems, 1);
+	restart_shutdown_logout_mi->logout_mi = logout_mi;
+	restart_shutdown_logout_mi->restart_mi = restart_mi;
+	restart_shutdown_logout_mi->shutdown_mi = shutdown_mi;
+
+	update_menu_entries(restart_shutdown_logout_mi);
+
+	return;
+}
+
+/* When the directory changes we need to figure out how our menu
+   item should look. */
+static void
+restart_dir_changed (gpointer userdata)
+{
+  DeviceMenuMgr* self = DEVICE_MENU_MGR (userdata);
+	gboolean restart_required = g_file_test("/var/run/reboot-required", G_FILE_TEST_EXISTS);
+
+	if (restart_required) {
+		if (supress_confirmations()) {
+			dbusmenu_menuitem_property_set (restart_mi,
+                                      RESTART_ITEM_LABEL,
+                                      _("Restart to Complete Update"));
+		} else {
+			dbusmenu_menuitem_property_set (restart_mi,
+                                      RESTART_ITEM_LABEL,
+                                      _("Restart to Complete Update\342\200\246"));
+		}
+		dbusmenu_menuitem_property_set (restart_mi,
+                                    RESTART_ITEM_ICON,
+                                    "system-restart-panel");
+		if (self->session_dbus_interface != NULL) {
+			session_dbus_set_name (self->session_dbus_interface, ICON_RESTART);
+		}
+	} else {	
+		if (supress_confirmations()) {
+			dbusmenu_menuitem_property_set(restart_mi, RESTART_ITEM_LABEL, _("Restart"));
+		} else {
+			dbusmenu_menuitem_property_set(restart_mi, RESTART_ITEM_LABEL, _("Restart\342\200\246"));
+		}
+		dbusmenu_menuitem_property_remove(restart_mi, RESTART_ITEM_ICON);
+		if (self->session_dbus_interface != NULL) {
+			session_dbus_set_name(self->session_dbus_interface, ICON_DEFAULT);
+		}
+	}
+	return;
+}
+
+/* Buids a file watcher for the directory so that when it
+   changes we can check to see if our reboot-required is
+   there. */
+static void
+setup_restart_watch (DeviceMenuMgr* self)
+{
+	GFile * filedir = g_file_new_for_path("/var/run");
+	GFileMonitor * filemon = g_file_monitor_directory(filedir, G_FILE_MONITOR_NONE, NULL, NULL);
+	if (filemon != NULL) {
+		g_signal_connect (G_OBJECT(filemon),
+                      "changed",
+                      G_CALLBACK(restart_dir_changed),
+                      self);
+	}
+	restart_dir_changed(self);
+	return;
+}
+
+/* Ensures that we have a GConf client and if we build one
+   set up the signal handler. */
+static void
+device_menu_mgr_ensure_gconf_client (DeviceMenuMgr* self)
+{
+	if (!gconf_client) {
+		gconf_client = gconf_client_get_default ();
+
+		gconf_client_add_dir(gconf_client, LOCKDOWN_DIR, GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);
+		gconf_client_notify_add (gconf_client,
+                             LOCKDOWN_DIR,
+                             lockdown_changed,
+                             self,
+                             NULL,
+                             NULL);
+
+		gconf_client_add_dir(gconf_client, KEYBINDING_DIR, GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);
+		gconf_client_notify_add (gconf_client,
+                             KEYBINDING_DIR,
+                             keybinding_changed,
+                             self,
+                             NULL,
+                             NULL);
+	}
+}
+
+DbusmenuMenuitem*
+device_mgr_get_root_item (DeviceMenuMgr* self)
+{
+  return self->root_item;
+}
+
+/*
+ * Clean Entry Point 
+ */
+DeviceMenuMgr* device_menu_mgr_new (SessionDbus* session_dbus)
+{
+  DeviceMenuMgr* device_mgr = g_object_new (DEVICE_TYPE_MENU_MGR, NULL);
+  device_mgr->session_dbus_interface = session_dbus;
+  device_menu_mgr_rebuild_items (device_mgr);    
+  return device_mgr;
+}