/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2006-2007 Red Hat, Inc.
*
* This library 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) any later version.
*
* This library 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 this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Alexander Larsson <alexl@redhat.com>
*/
#include "config.h"
#include "gappinfo.h"
#include "glibintl.h"
#include <gioerror.h>
#include <gfile.h>
#include "gioalias.h"
/**
* SECTION:gappinfo
* @short_description: Application information and launch contexts
* @include: gio/gio.h
*
* #GAppInfo and #GAppLaunchContext are used for describing and launching
* applications installed on the system.
*
* As of GLib 2.20, URIs will always be converted to POSIX paths
* (using g_file_get_path()) when using g_app_info_launch() even if
* the application requested an URI and not a POSIX path. For example
* for an desktop-file based application with Exec key <literal>totem
* %%U</literal> and a single URI,
* <literal>sftp://foo/file.avi</literal>, then
* <literal>/home/user/.gvfs/sftp on foo/file.avi</literal> will be
* passed. This will only work if a set of suitable GIO extensions
* (such as gvfs 2.26 compiled with FUSE support), is available and
* operational; if this is not the case, the URI will be passed
* unmodified to the application. Some URIs, such as
* <literal>mailto:</literal>, of course cannot be mapped to a POSIX
* path (in gvfs there's no FUSE mount for it); such URIs will be
* passed unmodified to the application.
*
* Specifically for gvfs 2.26 and later, the POSIX URI will be mapped
* back to the GIO URI in the #GFile constructors (since gvfs
* implements the #GVfs extension point). As such, if the application
* needs to examine the URI, it needs to use g_file_get_uri() or
* similar on #GFile. In other words, an application cannot assume
* that the URI passed to e.g. g_file_new_for_commandline_arg() is
* equal to the result of g_file_get_uri(). The following snippet
* illustrates this:
*
* <programlisting>
* GFile *f;
* char *uri;
*
* file = g_file_new_for_commandline_arg (uri_from_commandline);
*
* uri = g_file_get_uri (file);
* strcmp (uri, uri_from_commandline) == 0; // FALSE
* g_free (uri);
*
* if (g_file_has_uri_scheme (file, "cdda"))
* {
* // do something special with uri
* }
* g_object_unref (file);
* </programlisting>
*
* This code will work when both <literal>cdda://sr0/Track
* 1.wav</literal> and <literal>/home/user/.gvfs/cdda on sr0/Track
* 1.wav</literal> is passed to the application. It should be noted
* that it's generally not safe for applications to rely on the format
* of a particular URIs. Different launcher applications (e.g. file
* managers) may have different ideas of what a given URI means.
*
**/
static void g_app_info_base_init (gpointer g_class);
static void g_app_info_class_init (gpointer g_class,
gpointer class_data);
GType
g_app_info_get_type (void)
{
static volatile gsize g_define_type_id__volatile = 0;
if (g_once_init_enter (&g_define_type_id__volatile))
{
const GTypeInfo app_info_info =
{
sizeof (GAppInfoIface), /* class_size */
g_app_info_base_init, /* base_init */
NULL, /* base_finalize */
g_app_info_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
0,
0, /* n_preallocs */
NULL
};
GType g_define_type_id =
g_type_register_static (G_TYPE_INTERFACE, I_("GAppInfo"),
&app_info_info, 0);
g_type_interface_add_prerequisite (g_define_type_id, G_TYPE_OBJECT);
g_once_init_leave (&g_define_type_id__volatile, g_define_type_id);
}
return g_define_type_id__volatile;
}
static void
g_app_info_class_init (gpointer g_class,
gpointer class_data)
{
}
static void
g_app_info_base_init (gpointer g_class)
{
}
/**
* g_app_info_dup:
* @appinfo: a #GAppInfo.
*
* Creates a duplicate of a #GAppInfo.
*
* Returns: a duplicate of @appinfo.
**/
GAppInfo *
g_app_info_dup (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
iface = G_APP_INFO_GET_IFACE (appinfo);
return (* iface->dup) (appinfo);
}
/**
* g_app_info_equal:
* @appinfo1: the first #GAppInfo.
* @appinfo2: the second #GAppInfo.
*
* Checks if two #GAppInfos are equal.
*
* Returns: %TRUE if @appinfo1 is equal to @appinfo2. %FALSE otherwise.
**/
gboolean
g_app_info_equal (GAppInfo *appinfo1,
GAppInfo *appinfo2)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo1), FALSE);
g_return_val_if_fail (G_IS_APP_INFO (appinfo2), FALSE);
if (G_TYPE_FROM_INSTANCE (appinfo1) != G_TYPE_FROM_INSTANCE (appinfo2))
return FALSE;
iface = G_APP_INFO_GET_IFACE (appinfo1);
return (* iface->equal) (appinfo1, appinfo2);
}
/**
* g_app_info_get_id:
* @appinfo: a #GAppInfo.
*
* Gets the ID of an application. An id is a string that
* identifies the application. The exact format of the id is
* platform dependent. For instance, on Unix this is the
* desktop file id from the xdg menu specification.
*
* Note that the returned ID may be %NULL, depending on how
* the @appinfo has been constructed.
*
* Returns: a string containing the application's ID.
**/
const char *
g_app_info_get_id (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
iface = G_APP_INFO_GET_IFACE (appinfo);
return (* iface->get_id) (appinfo);
}
/**
* g_app_info_get_name:
* @appinfo: a #GAppInfo.
*
* Gets the installed name of the application.
*
* Returns: the name of the application for @appinfo.
**/
const char *
g_app_info_get_name (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
iface = G_APP_INFO_GET_IFACE (appinfo);
return (* iface->get_name) (appinfo);
}
/**
* g_app_info_get_description:
* @appinfo: a #GAppInfo.
*
* Gets a human-readable description of an installed application.
*
* Returns: a string containing a description of the
* application @appinfo, or %NULL if none.
**/
const char *
g_app_info_get_description (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
iface = G_APP_INFO_GET_IFACE (appinfo);
return (* iface->get_description) (appinfo);
}
/**
* g_app_info_get_executable:
* @appinfo: a #GAppInfo
*
* Gets the executable's name for the installed application.
*
* Returns: a string containing the @appinfo's application
* binary's name
**/
const char *
g_app_info_get_executable (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
iface = G_APP_INFO_GET_IFACE (appinfo);
return (* iface->get_executable) (appinfo);
}
/**
* g_app_info_get_commandline:
* @appinfo: a #GAppInfo
*
* Gets the commandline with which the application will be
* started.
*
* Returns: a string containing the @appinfo's commandline,
* or %NULL if this information is not available
*
* Since: 2.20
**/
const char *
g_app_info_get_commandline (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
iface = G_APP_INFO_GET_IFACE (appinfo);
if (iface->get_commandline)
return (* iface->get_commandline) (appinfo);
return NULL;
}
/**
* g_app_info_set_as_default_for_type:
* @appinfo: a #GAppInfo.
* @content_type: the content type.
* @error: a #GError.
*
* Sets the application as the default handler for a given type.
*
* Returns: %TRUE on success, %FALSE on error.
**/
gboolean
g_app_info_set_as_default_for_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
g_return_val_if_fail (content_type != NULL, FALSE);
iface = G_APP_INFO_GET_IFACE (appinfo);
return (* iface->set_as_default_for_type) (appinfo, content_type, error);
}
/**
* g_app_info_set_as_default_for_extension:
* @appinfo: a #GAppInfo.
* @extension: a string containing the file extension (without the dot).
* @error: a #GError.
*
* Sets the application as the default handler for the given file extention.
*
* Returns: %TRUE on success, %FALSE on error.
**/
gboolean
g_app_info_set_as_default_for_extension (GAppInfo *appinfo,
const char *extension,
GError **error)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
g_return_val_if_fail (extension != NULL, FALSE);
iface = G_APP_INFO_GET_IFACE (appinfo);
if (iface->set_as_default_for_extension)
return (* iface->set_as_default_for_extension) (appinfo, extension, error);
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
"g_app_info_set_as_default_for_extension not supported yet");
return FALSE;
}
/**
* g_app_info_add_supports_type:
* @appinfo: a #GAppInfo.
* @content_type: a string.
* @error: a #GError.
*
* Adds a content type to the application information to indicate the
* application is capable of opening files with the given content type.
*
* Returns: %TRUE on success, %FALSE on error.
**/
gboolean
g_app_info_add_supports_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
g_return_val_if_fail (content_type != NULL, FALSE);
iface = G_APP_INFO_GET_IFACE (appinfo);
if (iface->add_supports_type)
return (* iface->add_supports_type) (appinfo, content_type, error);
g_set_error_literal (error, G_IO_ERROR,
G_IO_ERROR_NOT_SUPPORTED,
"g_app_info_add_supports_type not supported yet");
return FALSE;
}
/**
* g_app_info_can_remove_supports_type:
* @appinfo: a #GAppInfo.
*
* Checks if a supported content type can be removed from an application.
*
* Returns: %TRUE if it is possible to remove supported
* content types from a given @appinfo, %FALSE if not.
**/
gboolean
g_app_info_can_remove_supports_type (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
iface = G_APP_INFO_GET_IFACE (appinfo);
if (iface->can_remove_supports_type)
return (* iface->can_remove_supports_type) (appinfo);
return FALSE;
}
/**
* g_app_info_remove_supports_type:
* @appinfo: a #GAppInfo.
* @content_type: a string.
* @error: a #GError.
*
* Removes a supported type from an application, if possible.
*
* Returns: %TRUE on success, %FALSE on error.
**/
gboolean
g_app_info_remove_supports_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
g_return_val_if_fail (content_type != NULL, FALSE);
iface = G_APP_INFO_GET_IFACE (appinfo);
if (iface->remove_supports_type)
return (* iface->remove_supports_type) (appinfo, content_type, error);
g_set_error_literal (error, G_IO_ERROR,
G_IO_ERROR_NOT_SUPPORTED,
"g_app_info_remove_supports_type not supported yet");
return FALSE;
}
/**
* g_app_info_get_icon:
* @appinfo: a #GAppInfo.
*
* Gets the icon for the application.
*
* Returns: the default #GIcon for @appinfo.
**/
GIcon *
g_app_info_get_icon (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
iface = G_APP_INFO_GET_IFACE (appinfo);
return (* iface->get_icon) (appinfo);
}
/**
* g_app_info_launch:
* @appinfo: a #GAppInfo
* @files: a #GList of #GFile objects
* @launch_context: a #GAppLaunchContext or %NULL
* @error: a #GError
*
* Launches the application. Passes @files to the launched application
* as arguments, using the optional @launch_context to get information
* about the details of the launcher (like what screen it is on).
* On error, @error will be set accordingly.
*
* To lauch the application without arguments pass a %NULL @files list.
*
* Note that even if the launch is successful the application launched
* can fail to start if it runs into problems during startup. There is
* no way to detect this.
*
* Some URIs can be changed when passed through a GFile (for instance
* unsupported uris with strange formats like mailto:), so if you have
* a textual uri you want to pass in as argument, consider using
* g_app_info_launch_uris() instead.
*
* Returns: %TRUE on successful launch, %FALSE otherwise.
**/
gboolean
g_app_info_launch (GAppInfo *appinfo,
GList *files,
GAppLaunchContext *launch_context,
GError **error)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
iface = G_APP_INFO_GET_IFACE (appinfo);
return (* iface->launch) (appinfo, files, launch_context, error);
}
/**
* g_app_info_supports_uris:
* @appinfo: a #GAppInfo.
*
* Checks if the application supports reading files and directories from URIs.
*
* Returns: %TRUE if the @appinfo supports URIs.
**/
gboolean
g_app_info_supports_uris (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
iface = G_APP_INFO_GET_IFACE (appinfo);
return (* iface->supports_uris) (appinfo);
}
/**
* g_app_info_supports_files:
* @appinfo: a #GAppInfo.
*
* Checks if the application accepts files as arguments.
*
* Returns: %TRUE if the @appinfo supports files.
**/
gboolean
g_app_info_supports_files (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
iface = G_APP_INFO_GET_IFACE (appinfo);
return (* iface->supports_files) (appinfo);
}
/**
* g_app_info_launch_uris:
* @appinfo: a #GAppInfo
* @uris: a #GList containing URIs to launch.
* @launch_context: a #GAppLaunchContext or %NULL
* @error: a #GError
*
* Launches the application. Passes @uris to the launched application
* as arguments, using the optional @launch_context to get information
* about the details of the launcher (like what screen it is on).
* On error, @error will be set accordingly.
*
* To lauch the application without arguments pass a %NULL @uris list.
*
* Note that even if the launch is successful the application launched
* can fail to start if it runs into problems during startup. There is
* no way to detect this.
*
* Returns: %TRUE on successful launch, %FALSE otherwise.
**/
gboolean
g_app_info_launch_uris (GAppInfo *appinfo,
GList *uris,
GAppLaunchContext *launch_context,
GError **error)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
iface = G_APP_INFO_GET_IFACE (appinfo);
return (* iface->launch_uris) (appinfo, uris, launch_context, error);
}
/**
* g_app_info_should_show:
* @appinfo: a #GAppInfo.
*
* Checks if the application info should be shown in menus that
* list available applications.
*
* Returns: %TRUE if the @appinfo should be shown, %FALSE otherwise.
**/
gboolean
g_app_info_should_show (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
iface = G_APP_INFO_GET_IFACE (appinfo);
return (* iface->should_show) (appinfo);
}
/**
* g_app_info_launch_default_for_uri:
* @uri: the uri to show
* @launch_context: an optional #GAppLaunchContext.
* @error: a #GError.
*
* Utility function that launches the default application
* registered to handle the specified uri. Synchronous I/O
* is done on the uri to detect the type of the file if
* required.
*
* Returns: %TRUE on success, %FALSE on error.
**/
gboolean
g_app_info_launch_default_for_uri (const char *uri,
GAppLaunchContext *launch_context,
GError **error)
{
GAppInfo *app_info;
GFile *file;
GList l;
gboolean res;
file = g_file_new_for_uri (uri);
app_info = g_file_query_default_handler (file, NULL, error);
g_object_unref (file);
if (app_info == NULL)
return FALSE;
/* Use the uri, not the GFile, as the GFile roundtrip may
* affect the uri which we don't want (for instance for a
* mailto: uri).
*/
l.data = (char *)uri;
l.next = l.prev = NULL;
res = g_app_info_launch_uris (app_info, &l,
launch_context, error);
g_object_unref (app_info);
return res;
}
/**
* g_app_info_can_delete:
* @appinfo: a #GAppInfo
*
* Obtains the information whether the GAppInfo can be deleted.
* See g_app_info_delete().
*
* Returns: %TRUE if @appinfo can be deleted
*
* Since: 2.20
*/
gboolean
g_app_info_can_delete (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
iface = G_APP_INFO_GET_IFACE (appinfo);
if (iface->can_delete)
return (* iface->can_delete) (appinfo);
return FALSE;
}
/**
* g_app_info_delete:
* @appinfo: a #GAppInfo
*
* Tries to delete an #GAppInfo.
*
* On some platforms, there may be a difference between user-defined
* #GAppInfo<!-- -->s which can be deleted, and system-wide ones which
* cannot. See g_app_info_can_delete().
*
* Returns: %TRUE if @appinfo has been deleted
*
* Since: 2.20
*/
gboolean
g_app_info_delete (GAppInfo *appinfo)
{
GAppInfoIface *iface;
g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
iface = G_APP_INFO_GET_IFACE (appinfo);
if (iface->do_delete)
return (* iface->do_delete) (appinfo);
return FALSE;
}
G_DEFINE_TYPE (GAppLaunchContext, g_app_launch_context, G_TYPE_OBJECT);
/**
* g_app_launch_context_new:
*
* Creates a new application launch context. This is not normally used,
* instead you instantiate a subclass of this, such as #GdkAppLaunchContext.
*
* Returns: a #GAppLaunchContext.
**/
GAppLaunchContext *
g_app_launch_context_new (void)
{
return g_object_new (G_TYPE_APP_LAUNCH_CONTEXT, NULL);
}
static void
g_app_launch_context_class_init (GAppLaunchContextClass *klass)
{
}
static void
g_app_launch_context_init (GAppLaunchContext *launch_context)
{
}
/**
* g_app_launch_context_get_display:
* @context: a #GAppLaunchContext
* @info: a #GAppInfo
* @files: a #GList of #GFile objects
*
* Gets the display string for the display. This is used to ensure new
* applications are started on the same display as the launching
* application.
*
* Returns: a display string for the display.
**/
char *
g_app_launch_context_get_display (GAppLaunchContext *context,
GAppInfo *info,
GList *files)
{
GAppLaunchContextClass *class;
g_return_val_if_fail (G_IS_APP_LAUNCH_CONTEXT (context), NULL);
g_return_val_if_fail (G_IS_APP_INFO (info), NULL);
class = G_APP_LAUNCH_CONTEXT_GET_CLASS (context);
if (class->get_display == NULL)
return NULL;
return class->get_display (context, info, files);
}
/**
* g_app_launch_context_get_startup_notify_id:
* @context: a #GAppLaunchContext
* @info: a #GAppInfo
* @files: a #GList of of #GFile objects
*
* Initiates startup notification for the application and returns the
* DESKTOP_STARTUP_ID for the launched operation, if supported.
*
* Startup notification IDs are defined in the <ulink
* url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">
* FreeDesktop.Org Startup Notifications standard</ulink>.
*
* Returns: a startup notification ID for the application, or %NULL if
* not supported.
**/
char *
g_app_launch_context_get_startup_notify_id (GAppLaunchContext *context,
GAppInfo *info,
GList *files)
{
GAppLaunchContextClass *class;
g_return_val_if_fail (G_IS_APP_LAUNCH_CONTEXT (context), NULL);
g_return_val_if_fail (G_IS_APP_INFO (info), NULL);
class = G_APP_LAUNCH_CONTEXT_GET_CLASS (context);
if (class->get_startup_notify_id == NULL)
return NULL;
return class->get_startup_notify_id (context, info, files);
}
/**
* g_app_launch_context_launch_failed:
* @context: a #GAppLaunchContext.
* @startup_notify_id: the startup notification id that was returned by g_app_launch_context_get_startup_notify_id().
*
* Called when an application has failed to launch, so that it can cancel
* the application startup notification started in g_app_launch_context_get_startup_notify_id().
*
**/
void
g_app_launch_context_launch_failed (GAppLaunchContext *context,
const char *startup_notify_id)
{
GAppLaunchContextClass *class;
g_return_if_fail (G_IS_APP_LAUNCH_CONTEXT (context));
g_return_if_fail (startup_notify_id != NULL);
class = G_APP_LAUNCH_CONTEXT_GET_CLASS (context);
if (class->launch_failed != NULL)
class->launch_failed (context, startup_notify_id);
}
#define __G_APP_INFO_C__
#include "gioaliasdef.c"