Difference between revisions of "Desktop notifications"

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(Full rewrite to make this article up to date and add more examples in several programming languages)
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[[Category:Development (English)]]
 
[[Category:Development (English)]]
 
{{i18n|Libnotify}}
 
{{i18n|Libnotify}}
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'''Libnotify''' is an easy way to display desktop notifications and information in a small dialog. It's used in much open source apps like Evolution, Pidgin, etc. It has support for Gtk+ and Qt applications and is desktop independent.
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Libnotify is an easy way to display desktop notifications and information in a small dialog. It's used in much opensource apps like Evolution, Pidgin, etc. It has support for Gtk+ and Qt applications and is desktop independent.
 
  
 
==Installation==
 
==Installation==
−
The libnotify package is available from the Extra repository. Install libnotify from a terminal with the following command.
 
  
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pacman -S libnotify
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The {{Pkg|libnotify}} package is available from the Extra repository. Install libnotify from a terminal with the following command.
 +
{{Cli|# pacman -S libnotify}}
 +
{{Note|Usually you don't have to install libnotify explicitly, since all applications that requires libnotify depends on it.}}
 +
In order to use libnotify in desktop environments, you have to install a notification server:
  
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==Configuration==
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===GNOME===
 +
*{{Pkg|gnome-shell}} provides a notification server itself. Notifications are displayed at the bottom of the screen.
 +
*In GNOME Fallback mode, you need to install {{Pkg|notification-daemon}}:
 +
:{{Cli|# pacman -S notification-daemon}}
 +
:{{Note|notification-daemon is a required component for GNOME Fallback mode. You can't login without it.}}
  
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===Gnome===
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===KDE===
 +
KDE uses knotify4 from {{Pkg|kdebase-runtime}} package to display notifications. If you are using KDE, this package is already installed.
  
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To configure libnotify in Gnome install the packages notification-daemon and gconf-editor available in the Extra repository.To install the packages from the terminal:
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===XFCE===
 +
To get notifications in XFCE, you need to install {{Pkg|xfce4-notifyd}}:
 +
{{Cli|# pacman -S xfce4-notifyd}}
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{{Tip|To configure xfce4-notifyd, run the following command in the terminal: {{Codeline|xfce4-notifyd-config}}.}}
  
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pacman -S notification-daemon gconf-editor
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===Unity===
 +
Unity uses [[Notify OSD]], which is available in AUR: {{AUR|notify-osd}}.
  
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Open gconf-editor from the terminal with the following:
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===Other DEs===
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Other DEs could use {{Pkg|notification-daemon}} (should be launched explicitly), {{Pkg|xfce4-notifyd}} or {{AUR|notify-osd}} (automatically launched by D-Bus on request).
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gconf-editor
 
  
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From gconf-editor, select "/apps/notification-daemon/" from the sidebar which will allow libnotify to be configured.
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==Tips & Tricks==
 +
awn-applet-awn-notification-daemon, colibri, notify-osd, plasma-widgets-workspace, xfce4-notifyd
  
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===XFCE===
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===Write your own notify app===
 +
You can write your own libnotify display messages easily in many programming languages through GObject-Introspection, or you can simply use bash.
  
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To configure libnotify in XFCE, you need the packages xfce4-notifyd and xfconf available in the Extra repository.To install the packages from the terminal:
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====Bash====
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*Dependency: {{Pkg|libnotify}}
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{{File|hello_world.sh|<nowiki>#!/bin/bash
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notify-send "Hello world" "This is an example notification." --icon=dialog-information</nowiki>}}
  
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pacman -S xfce4-notifyd
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====C====
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pacman -S xfconf
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*Dependency: {{Pkg|libnotify}}
 +
*Build with: {{Codeline|gcc -o hello_world `pkg-config --cflags --libs libnotify` hello_world.c}}
 +
{{File|hello_world.c|<nowiki>#include <libnotify/notify.h>
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void main () {
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notify_init ("Hello world");
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NotifyNotification * Hello = notify_notification_new ("Hello world", "This is an example.", "dialog-information");
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notify_notification_show (Hello, NULL);
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notify_uninit ();
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}</nowiki>}}
  
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To configure libnotify, run the following command in the terminal:
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====C#====
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*Dependency: {{Pkg|notify-sharp-svn}}
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xfce4-notifyd-config
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*Build with: {{Codeline|mcs -pkg:notify-sharp hello_world.cs}}
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{{File|hello_world.cs|<nowiki>using Notifications;
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==Tips & Tricks==
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public class HelloWorld {
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static void Main() {
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Notification Hello = new Notification();
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Hello.Summary  = "Hello world";
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Hello.Body    = "This is an example.";
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Hello.IconName = "dialog-information";
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Hello.Show();
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}
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}</nowiki>}}
  
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You can write your own libnotify display messages easily in Python or other languages. Here is a simple Python example.
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====Genie====
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*Dependency: {{Pkg|libnotify}}
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*Makedependency: {{Pkg|vala}}
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*Build with: {{Codeline|valac --pkg libnotify hello_world.gs}}
 +
{{File|hello_world.gs|<nowiki>uses
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Notify
  
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Note you will need to install the Python bindings for libnotify
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init
 +
Notify.init ("Hello world")
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var Hello=new Notification ("Hello world","This is an example.","dialog-information")
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Hello.show ()
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Notify.uninit ()</nowiki>}}
  
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pacman -S python-notify  #(communitiy)
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====JavaScript (gjs)====
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*Dependencies: {{Pkg|libnotify}}, {{Pkg|gjs}}
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{{File|hello_world.js|<nowiki>#!/usr/bin/gjs
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Notify = imports.gi.Notify;
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Notify.init ("Hello world");
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Hello=Notify.Notification.new ("Hello world","This is an example.","dialog-information");
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Hello.show ();
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Notify.uninit ();</nowiki>}}
  
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Hello world example
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====JavaScript (seed)====
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*Dependencies: {{Pkg|libnotify}}, {{Pkg|seed}}
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#!/usr/bin/env python
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{{File|hello_world.js|<nowiki>#!/usr/bin/seed
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import subprocess
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Notify = imports.gi.Notify;
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info = "Hello world "
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Notify.init ("Hello world");
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subprocess.call(('notify-send',info))
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Hello=new Notify.Notification ({summary: "Hello world",
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                                body: "This is an example.",
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                                "icon-name": "dialog-information"});
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Hello.show ();
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Notify.uninit ();</nowiki>}}
  
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#!/usr/bin/python
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====Python====
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import subprocess
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*Dependencies: {{Pkg|libnotify}}, {{Pkg|python-gobject}}
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import commands   
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{{File|hello_world.py|<nowiki>#!/usr/bin/python
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#KERNEL VERSION
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from gi.repository import Notify
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uname = commands.getoutput('uname -r')
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Notify.init ("Hello world")
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head = "All the info about your system:"
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Hello=Notify.Notification.new ("Hello world","This is an example.","dialog-information")
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msg = "Your kernel version: "+ uname +"\n"      
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Hello.show ()
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# print message
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Notify.uninit ()</nowiki>}}
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subprocess.call(['notify-send', head, msg])
 
  
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Or you can just use bash
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====Python 2 (python-notify)====
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*Dependency: {{Pkg|python-notify}}
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{{File|hello_world.py|<nowiki>#!/usr/bin/python2
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import pynotify
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pynotify.init ("Hello world")
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Hello=pynotify.Notification ("Hello world","This is an example.","dialog-information")
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Hello.show ()
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pynotify.uninit ()</nowiki>}}
  
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# send a notification saying hello world
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====Vala====
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notify-send "hello world"
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*Dependency: {{Pkg|libnotify}}
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*Makedependency: {{Pkg|vala}}
 +
*Build with: {{Codeline|valac --pkg libnotify hello_world.vala}}
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{{File|hello_world.vala|<nowiki>using Notify;
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public class HelloWorld {
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static void main () {
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Notify.init ("Hello world");
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Notification Hello = new Notification("Hello world", "This is an example.", "dialog-information");
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Hello.show ();
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Notify.uninit ();
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}
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}</nowiki>}}
  
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==More Resources==  
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==More Resources==
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[http://www.florijan.net/2009/05/22/howto-using-python-to-display-notifications-using-libnotify/ Libnotify python example]
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*[http://developer.gnome.org/libnotify/ Libnotify Reference Manual]
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[http://roscidus.com/desktop/node/336 another libnotify example]
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*[http://milky.manishsinha.net/2009/03/29/working-with-libnotify/ C example]
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*[http://code.valaide.org/content/genie-libnotify-example Genie example]
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*[http://roscidus.com/desktop/node/336 Python example]

Revision as of 18:31, 25 October 2011

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Libnotify is an easy way to display desktop notifications and information in a small dialog. It's used in much open source apps like Evolution, Pidgin, etc. It has support for Gtk+ and Qt applications and is desktop independent.

Installation

The libnotify package is available from the Extra repository. Install libnotify from a terminal with the following command. Template:Cli

Note: Usually you don't have to install libnotify explicitly, since all applications that requires libnotify depends on it.

In order to use libnotify in desktop environments, you have to install a notification server:

GNOME

  • gnome-shell provides a notification server itself. Notifications are displayed at the bottom of the screen.
  • In GNOME Fallback mode, you need to install notification-daemon:
Template:Cli
Note: notification-daemon is a required component for GNOME Fallback mode. You can't login without it.

KDE

KDE uses knotify4 from kdebase-runtime package to display notifications. If you are using KDE, this package is already installed.

XFCE

To get notifications in XFCE, you need to install xfce4-notifyd: Template:Cli

Tip: To configure xfce4-notifyd, run the following command in the terminal: Template:Codeline.

Unity

Unity uses Notify OSD, which is available in AUR: notify-osdAUR.

Other DEs

Other DEs could use notification-daemon (should be launched explicitly), xfce4-notifyd or notify-osdAUR (automatically launched by D-Bus on request).

Tips & Tricks

awn-applet-awn-notification-daemon, colibri, notify-osd, plasma-widgets-workspace, xfce4-notifyd

Write your own notify app

You can write your own libnotify display messages easily in many programming languages through GObject-Introspection, or you can simply use bash.

Bash

Template:File

C

Template:File

C#

Template:File

Genie

Template:File

JavaScript (gjs)

Template:File

JavaScript (seed)

Template:File

Python

Template:File

Python 2 (python-notify)

Template:File

Vala

Template:File

More Resources

Retrieved from "https://wiki.archlinux.org/index.php?title=Desktop_notifications&oldid=167515"