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Add g_file_query_default_handler utility to easily look up the GAppInfo

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2008-01-29  Alexander Larsson  <alexl@redhat.com>

        * gfile.[ch]:
        Add g_file_query_default_handler utility to easily look up
	the GAppInfo that handles a file.
	
        * gdesktopappinfo.[ch]:
        * giomodule.c:
	Set up an extension point for g_app_info_get_default_for_uri_scheme()
	
        * gvfs.c:
	Remove unused function



svn path=/trunk/; revision=6409
This commit is contained in:
Alexander Larsson 2008-01-29 12:18:48 +00:00 committed by Alexander Larsson
parent 1b0fce2dca
commit 431fef8617
7 changed files with 209 additions and 46 deletions
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13
gio/ChangeLog
View File

@ -1,3 +1,16 @@
2008-01-29 Alexander Larsson <alexl@redhat.com>
* gfile.[ch]:
Add g_file_query_default_handler utility to easily look up
the GAppInfo that handles a file.
* gdesktopappinfo.[ch]:
* giomodule.c:
Set up an extension point for g_app_info_get_default_for_uri_scheme()
* gvfs.c:
Remove unused function
2008-01-29 Alexander Larsson <alexl@redhat.com>
* gfileenumerator.c:

113
gio/gdesktopappinfo.c
View File

@ -1607,7 +1607,6 @@ g_app_info_get_default_for_type (const char *content_type,
return info;
}
/**
* g_app_info_get_default_for_uri_scheme:
* @uri_scheme: a string containing a URI scheme.
@ -1622,10 +1621,54 @@ g_app_info_get_default_for_type (const char *content_type,
GAppInfo *
g_app_info_get_default_for_uri_scheme (const char *uri_scheme)
{
/* TODO: Implement this using giomodules, reading the gconf settings
* in /desktop/gnome/url-handlers
*/
return NULL;
static gsize lookup = 0;
if (g_once_init_enter (&lookup))
{
gsize setup_value = 1;
GDesktopAppInfoLookup *lookup_instance;
const char *use_this;
GIOExtensionPoint *ep;
GIOExtension *extension;
GList *l;
use_this = g_getenv ("GIO_USE_URI_ASSOCIATION");
/* Ensure vfs in modules loaded */
_g_io_modules_ensure_loaded ();
ep = g_io_extension_point_lookup (G_DESKTOP_APP_INFO_LOOKUP_EXTENSION_POINT_NAME);
lookup_instance = NULL;
if (use_this)
{
extension = g_io_extension_point_get_extension_by_name (ep, use_this);
if (extension)
lookup_instance = g_object_new (g_io_extension_get_type (extension), NULL);
}
if (lookup_instance == NULL)
{
for (l = g_io_extension_point_get_extensions (ep); l != NULL; l = l->next)
{
extension = l->data;
lookup_instance = g_object_new (g_io_extension_get_type (extension), NULL);
if (lookup_instance != NULL)
break;
}
}
if (lookup_instance != NULL)
setup_value = (gsize)lookup_instance;
g_once_init_leave (&lookup, setup_value);
}
if (lookup == 1)
return NULL;
return g_desktop_app_info_lookup_get_default_for_uri_scheme (G_DESKTOP_APP_INFO_LOOKUP (lookup),
uri_scheme);
}
@ -2284,5 +2327,65 @@ get_all_desktop_entries_for_mime_type (const char *base_mime_type)
return desktop_entries;
}
/* GDesktopAppInfoLookup interface: */
static void g_desktop_app_info_lookup_base_init (gpointer g_class);
static void g_desktop_app_info_lookup_class_init (gpointer g_class,
gpointer class_data);
GType
g_desktop_app_info_lookup_get_type (void)
{
static GType desktop_app_info_lookup_type = 0;
if (! desktop_app_info_lookup_type)
{
static const GTypeInfo desktop_app_info_lookup_info =
{
sizeof (GDesktopAppInfoLookupIface), /* class_size */
g_desktop_app_info_lookup_base_init, /* base_init */
NULL, /* base_finalize */
g_desktop_app_info_lookup_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
0,
0, /* n_preallocs */
NULL
};
desktop_app_info_lookup_type =
g_type_register_static (G_TYPE_INTERFACE, I_("GDesktopAppInfoLookup"),
&desktop_app_info_lookup_info, 0);
g_type_interface_add_prerequisite (desktop_app_info_lookup_type, G_TYPE_OBJECT);
}
return desktop_app_info_lookup_type;
}
static void
g_desktop_app_info_lookup_class_init (gpointer g_class,
gpointer class_data)
{
}
static void
g_desktop_app_info_lookup_base_init (gpointer g_class)
{
}
GAppInfo *
g_desktop_app_info_lookup_get_default_for_uri_scheme (GDesktopAppInfoLookup *lookup,
const char *uri_scheme)
{
GDesktopAppInfoLookupIface *iface;
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO_LOOKUP (lookup), FALSE);
iface = G_DESKTOP_APP_INFO_LOOKUP_GET_IFACE (lookup);
return (* iface->get_default_for_uri_scheme) (lookup, uri_scheme);
}
#define __G_DESKTOP_APP_INFO_C__
#include "gioaliasdef.c"

25
gio/gdesktopappinfo.h
View File

@ -24,6 +24,7 @@
#define __G_DESKTOP_APP_INFO_H__
#include <gio/gio.h>
#include "giomodule-priv.h"
G_BEGIN_DECLS
@ -42,6 +43,7 @@ struct _GDesktopAppInfoClass
GObjectClass parent_class;
};
GType g_desktop_app_info_get_type (void) G_GNUC_CONST;
GDesktopAppInfo *g_desktop_app_info_new_from_filename (const char *filename);
@ -50,6 +52,29 @@ gboolean g_desktop_app_info_get_is_hidden (GDesktopAppInfo *info);
void g_desktop_app_info_set_desktop_env (const char *desktop_env);
#define G_TYPE_DESKTOP_APP_INFO_LOOKUP (g_desktop_app_info_lookup_get_type ())
#define G_DESKTOP_APP_INFO_LOOKUP(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), G_TYPE_DESKTOP_APP_INFO_LOOKUP, GDesktopAppInfoLookup))
#define G_IS_DESKTOP_APP_INFO_LOOKUP(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), G_TYPE_DESKTOP_APP_INFO_LOOKUP))
#define G_DESKTOP_APP_INFO_LOOKUP_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), G_TYPE_DESKTOP_APP_INFO_LOOKUP, GDesktopAppInfoLookupIface))
#define G_DESKTOP_APP_INFO_LOOKUP_EXTENSION_POINT_NAME "gio-desktop-app-info-lookup"
typedef struct _GDesktopAppInfoLookup GDesktopAppInfoLookup;
typedef struct _GDesktopAppInfoLookupIface GDesktopAppInfoLookupIface;
struct _GDesktopAppInfoLookupIface
{
GTypeInterface g_iface;
GAppInfo * (*get_default_for_uri_scheme) (GDesktopAppInfoLookup *lookup,
const char *uri_scheme);
};
GType g_desktop_app_info_lookup_get_type (void) G_GNUC_CONST;
GAppInfo * g_desktop_app_info_lookup_get_default_for_uri_scheme (GDesktopAppInfoLookup *lookup,
const char *uri_scheme);
G_END_DECLS

51
gio/gfile.c
View File

@ -4572,6 +4572,57 @@ g_file_mount_enclosing_volume_finish (GFile *location,
* Utility functions *
********************************************/
GAppInfo *
g_file_query_default_handler (GFile *file,
GCancellable *cancellable,
GError **error)
{
char *uri_scheme;
const char *content_type;
GAppInfo *appinfo;
GFileInfo *info;
char *path;
uri_scheme = g_file_get_uri_scheme (file);
appinfo = g_app_info_get_default_for_uri_scheme (uri_scheme);
g_free (uri_scheme);
if (appinfo != NULL)
return appinfo;
info = g_file_query_info (file,
G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,
0,
cancellable,
error);
if (info == NULL)
return NULL;
appinfo = NULL;
content_type = g_file_info_get_content_type (info);
if (content_type)
{
/* Don't use is_native(), as we want to support fuse paths if availible */
path = g_file_get_path (file);
appinfo = g_app_info_get_default_for_type (content_type,
path == NULL);
g_free (path);
}
g_object_unref (info);
if (appinfo != NULL)
return appinfo;
g_set_error (error, G_IO_ERROR,
G_IO_ERROR_NOT_SUPPORTED,
_("No application is registered as handling this file"));
return NULL;
}
#define GET_CONTENT_BLOCK_SIZE 8192
/**

4
gio/gfile.h
View File

@ -33,6 +33,7 @@
#include <gio/gfileinputstream.h>
#include <gio/gfileoutputstream.h>
#include <gio/gmountoperation.h>
#include <gio/gappinfo.h>
G_BEGIN_DECLS
@ -838,6 +839,9 @@ GFileMonitor* g_file_monitor_file (GFile
/* Utilities */
GAppInfo *g_file_query_default_handler (GFile *file,
GCancellable *cancellable,
GError **error);
gboolean g_file_load_contents (GFile *file,
GCancellable *cancellable,
char **contents,

9
gio/giomodule.c
View File

@ -30,7 +30,9 @@
#include "glocaldirectorymonitor.h"
#include "gnativevolumemonitor.h"
#include "gvfs.h"
#ifdef G_OS_UNIX
#include "gdesktopappinfo.h"
#endif
#include "gioalias.h"
/**
@ -257,6 +259,11 @@ _g_io_modules_ensure_loaded (void)
{
loaded_dirs = TRUE;
#ifdef G_OS_UNIX
ep = g_io_extension_point_register (G_DESKTOP_APP_INFO_LOOKUP_EXTENSION_POINT_NAME);
g_io_extension_point_set_required_type (ep, G_TYPE_DESKTOP_APP_INFO_LOOKUP);
#endif
ep = g_io_extension_point_register (G_LOCAL_DIRECTORY_MONITOR_EXTENSION_POINT_NAME);
g_io_extension_point_set_required_type (ep, G_TYPE_LOCAL_DIRECTORY_MONITOR);

40
gio/gvfs.c
View File

@ -167,46 +167,6 @@ g_vfs_parse_name (GVfs *vfs,
return (* class->parse_name) (vfs, parse_name);
}
/* Note: This compares in reverse order.
Higher prio -> sort first
*/
static gint
compare_vfs_type (gconstpointer a,
gconstpointer b,
gpointer user_data)
{
GType a_type, b_type;
char *a_name, *b_name;
int a_prio, b_prio;
gint res;
const char *use_this_monitor;
GQuark private_q, name_q;
private_q = g_quark_from_static_string ("gio-prio");
name_q = g_quark_from_static_string ("gio-name");
use_this_monitor = user_data;
a_type = *(GType *)a;
b_type = *(GType *)b;
a_prio = GPOINTER_TO_INT (g_type_get_qdata (a_type, private_q));
a_name = g_type_get_qdata (a_type, name_q);
b_prio = GPOINTER_TO_INT (g_type_get_qdata (b_type, private_q));
b_name = g_type_get_qdata (b_type, name_q);
if (a_type == b_type)
res = 0;
else if (use_this_monitor != NULL &&
strcmp (a_name, use_this_monitor) == 0)
res = -1;
else if (use_this_monitor != NULL &&
strcmp (b_name, use_this_monitor) == 0)
res = 1;
else
res = b_prio - a_prio;
return res;
}
static gpointer
get_default_vfs (gpointer arg)
{