chromiumgoogle-chromeindicator
After upgrading recently, I noticed that when running Chromium, there is a new bell icon in the system indicators area in the upper right. The menu gives the options as such:
Are these options only available via the system indicators menu, or can I remove this icon from my view, and access the same options somewhere else? How would I go about removing this?
So here's the problem. Like you mentioned, NPAPI is on its way out and Webkit applications are going to make heavy use of their own in-built notification system instead of respecting the one provided by a desktop environment [1]. Unless someone comes up with a way with intercepting the notification requests for the browser and have it to speak at a local daemon that can in turn speak with notify-osd; we're out of luck.
Expanding on this, KDE allows for button manipulation in its notification service whereas Ubuntu does not. If they've unified this one action as a generic feature, it might be even more feasible to implement the above. But alas.
[1]: More likely, they want to make it as rich as possible but without worrying too much about cross platform support.
Well, it is really simpler then I expected. There is no specific API for it. Because it is just a GSimpleActionGroup & with corresponding GMenu's exported through DBus then Unity is told about their presence using declaration file with same name put in /usr/share/unity/indicators/. No need for any other library.
Here a very small C language example:
Get a copy of tests/indicator-test-service.c from libindicator source
apt-get source libindicator
cp libindicator-*/tests/indicator-test-service.c .
cp libindicator-*/tests/com.canonical.indicator.test* .
indicator-test-service.c no changes
#include <gio/gio.h>
typedef struct
{
GSimpleActionGroup *actions;
GMenu *menu;
guint actions_export_id;
guint menu_export_id;
} IndicatorTestService;
static void
bus_acquired (GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
IndicatorTestService *indicator = user_data;
GError *error = NULL;
indicator->actions_export_id = g_dbus_connection_export_action_group (connection,
"/com/canonical/indicator/test",
G_ACTION_GROUP (indicator->actions),
&error);
if (indicator->actions_export_id == 0)
{
g_warning ("cannot export action group: %s", error->message);
g_error_free (error);
return;
}
indicator->menu_export_id = g_dbus_connection_export_menu_model (connection,
"/com/canonical/indicator/test/desktop",
G_MENU_MODEL (indicator->menu),
&error);
if (indicator->menu_export_id == 0)
{
g_warning ("cannot export menu: %s", error->message);
g_error_free (error);
return;
}
}
static void
name_lost (GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
IndicatorTestService *indicator = user_data;
if (indicator->actions_export_id)
g_dbus_connection_unexport_action_group (connection, indicator->actions_export_id);
if (indicator->menu_export_id)
g_dbus_connection_unexport_menu_model (connection, indicator->menu_export_id);
}
static void
activate_show (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
g_message ("showing");
}
int
main (int argc, char **argv)
{
IndicatorTestService indicator = { 0 };
GMenuItem *item;
GMenu *submenu;
GActionEntry entries[] = {
{ "_header", NULL, NULL, "{'label': <'Test'>,"
" 'icon': <'indicator-test'>,"
" 'accessible-desc': <'Test indicator'> }", NULL },
{ "show", activate_show, NULL, NULL, NULL }
};
GMainLoop *loop;
indicator.actions = g_simple_action_group_new ();
g_simple_action_group_add_entries (indicator.actions, entries, G_N_ELEMENTS (entries), NULL);
submenu = g_menu_new ();
g_menu_append (submenu, "Show", "indicator.show");
item = g_menu_item_new (NULL, "indicator._header");
g_menu_item_set_attribute (item, "x-canonical-type", "s", "com.canonical.indicator.root");
g_menu_item_set_submenu (item, G_MENU_MODEL (submenu));
indicator.menu = g_menu_new ();
g_menu_append_item (indicator.menu, item);
g_bus_own_name (G_BUS_TYPE_SESSION,
"com.canonical.indicator.test",
G_BUS_NAME_OWNER_FLAGS_NONE,
bus_acquired,
NULL,
name_lost,
&indicator,
NULL);
loop = g_main_loop_new (NULL, FALSE);
g_main_loop_run (loop);
g_object_unref (submenu);
g_object_unref (item);
g_object_unref (indicator.actions);
g_object_unref (indicator.menu);
g_object_unref (loop);
return 0;
}
com.canonical.indicator.test modified to add lock & greeter mode
[Indicator Service]
Name=indicator-test
ObjectPath=/com/canonical/indicator/test
[desktop]
ObjectPath=/com/canonical/indicator/test/desktop
[desktop_greeter]
ObjectPath=/com/canonical/indicator/test/desktop
[desktop_lockscreen]
ObjectPath=/com/canonical/indicator/test/desktop
com.canonical.indicator.test.service remove .in postfix from filename and change the executable path
[D-BUS Service]
Name=com.canonical.indicator.test
Exec=/usr/lib/x86_64-linux-gnu/indicator-test/indicator-test-service
Compile it
gcc -o indicator-test-service indicator-test-service.c `pkg-config --cflags --libs gtk+-3.0`
Manual Installation
sudo su
mkdir /usr/lib/x86_64-linux-gnu/indicator-test/
cp indicator-test-service /usr/lib/x86_64-linux-gnu/indicator-test/
cp com.canonical.indicator.test /usr/share/unity/indicators/
cp com.canonical.indicator.test.service /usr/share/dbus-1/services/
Configuration for Greeter, override the default indicators list
90_unity-greeter.gschema.override
[com.canonical.unity-greeter]
indicators=['ug-accessibility', 'com.canonical.indicator.keyboard', 'com.canonical.indicator.session', 'com.canonical.indicator.datetime', 'com.canonical.indicator.power', 'com.canonical.indicator.sound', 'com.canonical.indicator.test', 'application']
Install
cp 90_unity-greeter.gschema.override /usr/share/glib-2.0/schemas/
glib-compile-schemas /usr/share/glib-2.0/schemas/
Test
sudo service lightdm restart
DBus service is troublesome, if you want user to be able to close application anytime. It is better to use autostart instead, like default indicators do.
I have uploaded ready files here:
https://github.com/sneetsher/mysystemindicator_minimum
and a modified copy here:
https://github.com/sneetsher/mysystemindicator
Where I have tried different menu for different mode. It could be installed and tested quickly.
This seems too simple and can be easily ported to any other language that have support for GIO Gnome lib (including DBus). As I'm looking for python, I may add it later.
This is not full standalone indicator as the one above, it is just a share lib plugin, similar to libappmenu.so & libprintersmenu.so (application menu & printer indicator). It could be shown only in regular user session & greeter (Not on lock screen).
I couldn't make it work in my current machine, but I did before. Here the steps, may be I'm missing something.
Using same source above of libindicator
test/libdummy-indicator-*.c are examples (simple & visible the ones show up on the panel)
Compile
./autogen.sh
make
Install
sudo cp tests/.libs/libdummy-indicator-visible.so /usr/lib/indicators3/7/libdummy.so
Configure to show in greeter screen
90_unity-greeter.gschema.override use same name without lib prefix and .so extension.
[com.canonical.unity-greeter]
indicators=['ug-accessibility', 'com.canonical.indicator.keyboard', 'com.canonical.indicator.session', 'com.canonical.indicator.datetime', 'com.canonical.indicator.power', 'com.canonical.indicator.sound', 'application', 'dummy']
Install
cp 90_unity-greeter.gschema.override /usr/share/glib-2.0/schemas/
glib-compile-schemas /usr/share/glib-2.0/schemas/
Best Answer
Open the URL chrome://flags in the browser. Now disable these flags:
Click the restart button at the bottom of the site.