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Cocoa::Growl - Yet another growl module using Growl.framework


    use Cocoa::Growl ':all';
    my $installed = growl_installed(); # true if Growl is installed.
    my $running   = growl_running();   # true if Growl is running.
    # register application
        app           => 'My growl script',
        icon          => '/path/to/icon.png', # or 'http://url/to/icon'
        notifications => [qw(Notification1 Notification2)],
    # show growl notification
        name        => 'Notification1',
        title       => 'Hello!',
        description => 'Growl world!',



No function is exported by default, but all functions is exportable. And ':all' tag export all functions.


    my $installed = growl_installed();

Return true value if growl is installed.


    my $running = growl_running();

Return true value if growl is running.


Register application to growl.

        app           => 'My growl script',
        icon          => '/path/to/icon.png', # or 'http://url/to/icon'
        notifications => [qw(Notification1 Notification2)],

Available parameters are:

  • app => 'Str' (Required)

    The name of the application. This is listed in Growl preference panel.

  • icon => 'Str'

    Application icon image path or URL. This image is showed in Growl preference panel, and used notification default image.

  • notifications => 'ArrayRef' (Required)

    List of notification names. These names will be displayed in Growl preference pane to let users customize options for each notification.

  • defaults => 'ArrayRef'

    List of notification names to enable by default. If this parameter is not set, all notifications is to become default.


Show growl notify.

        name        => 'Notification1',
        title       => 'Hello!',
        description => 'Growl world!',

Available options are:

  • name => 'Str' (Required)

    The internal name of the notification. Should be human-readable, as it will be displayed in the Growl preference pane. And this value is required to be registered by growl_register before calling this function.

  • title => 'Str'

    The title of the notification displayed to the user.

  • description => 'Str'

    The full description of the notification displayed to the user.

  • icon => 'Str'

    Image file path or URL to show with the notification as its icon. If this value is not set, the application's icon will be used instead.

  • sticky => 'Bool'

    If true value is set, the notification will remain on screen until clicked. Not all Growl displays support sticky notifications.

  • priority => 'Int'

    The priority of the notification. The default value is 0; positive values are higher priority and negative values are lower priority. Not all Growl displays support priority.

  • on_click => 'CodeRef',

    This callback is called when notification is clicked. See also CALLBACK NOTICE below.

  • on_timeout => 'CodeRef',

    This callback is called when notification is timeout. (also called notification closed by close button)


You should run Cocoa's event loop NSRunLoop to be enable callbacks. Simplest way to do that is use this module with Cocoa::EventLoop.

    use Cocoa::EventLoop;
    use Cocoa::Growl ':all';
        name          => 'test script',
        notifications => ['test notification'],
    my $wait = 1;
        name        => 'test notification',
        title       => 'Hello',
        description => 'Growl World!',
        on_click => sub {
            warn 'click';
            $wait = 0;
        on_timeout => sub {
            warn 'timeout';
            $want = 0;
    Cocoa::EventLoop->run_while(0.1) while unless $wait;

If you want to write more complicated script, use AnyEvent. AnyEvent 5.3 or higher is support Cocoa::EventLoop internally, so you can use cocoa's event loop transparently in your AnyEvent application. See AnyEvent::Impl::Cocoa for more detail.

USE YOUR OWN Growl.framework

Although this module bundle Growl.framework and load it by default, you can load your own Growl.framework. To do that, save your Growl.framework to /Library/Frameworks/Growl.framework/, and add USE_LOCAL_GROWL_FRAMEWORK=1 option when run Makefile.PL



Daisuke Murase <>


Copyright (c) 2010 by KAYAC Inc.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

The full text of the license can be found in the LICENSE file included with this module.