luc14n0/glib
1
0
Fork 0
mirror of https://gitlab.gnome.org/GNOME/glib.git synced 2024-12-26 15:36:14 +01:00
Code Issues Packages Projects Releases Wiki Activity
bb6a77afa3
glib/gio/gdesktopappinfo.c
Ryan Lortie 3b8bc8bacf GDesktopAppInfo: avoid inotify on missing dirs 
Some desktop file directories, like /usr/local/share/applications may be
missing on some systems.

When we try to inotify on these directories, this will result in a
every-4-seconds poll being setup which is quite bad.

This is an issue that should be fixed in inotify itself but the problem
is much larger there.  For now, we can work around it in GDesktopAppInfo
by refusing to monitor missing directories.

We may get some spurious notifications of changes in the case that
/usr/local/share or /usr/local/share/applications is created without
actually adding desktop files, but spurious changes can already be
reported in other cases, so that's OK.  We won't get (user-visible)
notification for a simple case of a completely unrelated file being
created (however we cannot avoid the wakeup in this case due to how
inotify works).  That's probably pretty theoretical, though, since files
in /usr don't change much and for the home directory we're likely to
have at least ~/.config and ~/.local existing.

https://bugzilla.gnome.org/show_bug.cgi?id=736350
2014-09-09 14:11:38 -04:00

4600 lines
130 KiB
C
Raw Blame History

/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2006-2007 Red Hat, Inc.
* Copyright © 2007 Ryan Lortie
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Author: Alexander Larsson <alexl@redhat.com>
* Ryan Lortie <desrt@desrt.ca>
*/
/* Prelude {{{1 */
#include "config.h"
#include <errno.h>
#include <string.h>
#include <unistd.h>
#ifdef HAVE_CRT_EXTERNS_H
#include <crt_externs.h>
#endif
#include "gcontenttypeprivate.h"
#include "gdesktopappinfo.h"
#ifdef G_OS_UNIX
#include "glib-unix.h"
#endif
#include "gfile.h"
#include "gioerror.h"
#include "gthemedicon.h"
#include "gfileicon.h"
#include <glib/gstdio.h>
#include "glibintl.h"
#include "giomodule-priv.h"
#include "gappinfo.h"
#include "gappinfoprivate.h"
#include "glocaldirectorymonitor.h"
/**
* SECTION:gdesktopappinfo
* @title: GDesktopAppInfo
* @short_description: Application information from desktop files
* @include: gio/gdesktopappinfo.h
*
* #GDesktopAppInfo is an implementation of #GAppInfo based on
* desktop files.
*
* Note that `<gio/gdesktopappinfo.h>` belongs to the UNIX-specific
* GIO interfaces, thus you have to use the `gio-unix-2.0.pc` pkg-config
* file when using it.
*/
#define DEFAULT_APPLICATIONS_GROUP "Default Applications"
#define ADDED_ASSOCIATIONS_GROUP "Added Associations"
#define REMOVED_ASSOCIATIONS_GROUP "Removed Associations"
#define MIME_CACHE_GROUP "MIME Cache"
#define GENERIC_NAME_KEY "GenericName"
#define FULL_NAME_KEY "X-GNOME-FullName"
#define KEYWORDS_KEY "Keywords"
#define STARTUP_WM_CLASS_KEY "StartupWMClass"
enum {
PROP_0,
PROP_FILENAME
};
static void g_desktop_app_info_iface_init (GAppInfoIface *iface);
static gboolean g_desktop_app_info_ensure_saved (GDesktopAppInfo *info,
GError **error);
/**
* GDesktopAppInfo:
*
* Information about an installed application from a desktop file.
*/
struct _GDesktopAppInfo
{
GObject parent_instance;
char *desktop_id;
char *filename;
char *app_id;
GKeyFile *keyfile;
char *name;
char *generic_name;
char *fullname;
char *comment;
char *icon_name;
GIcon *icon;
char **keywords;
char **only_show_in;
char **not_show_in;
char *try_exec;
char *exec;
char *binary;
char *path;
char *categories;
char *startup_wm_class;
char **mime_types;
char **actions;
guint nodisplay : 1;
guint hidden : 1;
guint terminal : 1;
guint startup_notify : 1;
guint no_fuse : 1;
};
typedef enum {
UPDATE_MIME_NONE = 1 << 0,
UPDATE_MIME_SET_DEFAULT = 1 << 1,
UPDATE_MIME_SET_NON_DEFAULT = 1 << 2,
UPDATE_MIME_REMOVE = 1 << 3,
UPDATE_MIME_SET_LAST_USED = 1 << 4,
} UpdateMimeFlags;
G_DEFINE_TYPE_WITH_CODE (GDesktopAppInfo, g_desktop_app_info, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_APP_INFO, g_desktop_app_info_iface_init))
/* DesktopFileDir implementation {{{1 */
typedef struct
{
gchar *path;
gchar *alternatively_watching;
gboolean is_config;
gboolean is_setup;
GLocalDirectoryMonitor *monitor;
GHashTable *app_names;
GHashTable *mime_tweaks;
GHashTable *memory_index;
GHashTable *memory_implementations;
} DesktopFileDir;
static DesktopFileDir *desktop_file_dirs;
static guint n_desktop_file_dirs;
static const guint desktop_file_dir_user_config_index = 0;
static guint desktop_file_dir_user_data_index;
static GMutex desktop_file_dir_lock;
/* Monitor 'changed' signal handler {{{2 */
static void desktop_file_dir_reset (DesktopFileDir *dir);
/*< internal >
* desktop_file_dir_get_alternative_dir:
* @dir: a #DesktopFileDir
*
* Gets the "alternative" directory to monitor in case the path
* doesn't exist.
*
* If the path exists this will return NULL, otherwise it will return a
* parent directory of the path.
*
* This is used to avoid inotify on a non-existent directory (which
* results in polling).
*
* See https://bugzilla.gnome.org/show_bug.cgi?id=522314 for more info.
*/
static gchar *
desktop_file_dir_get_alternative_dir (DesktopFileDir *dir)
{
gchar *parent;
/* If the directory itself exists then we need no alternative. */
if (g_access (dir->path, R_OK | X_OK) == 0)
return NULL;
/* Otherwise, try the parent directories until we find one. */
parent = g_path_get_dirname (dir->path);
while (g_access (parent, R_OK | X_OK) != 0)
{
gchar *tmp = parent;
parent = g_path_get_dirname (tmp);
/* If somehow we get to '/' or '.' then just stop... */
if (g_str_equal (parent, tmp))
{
g_free (tmp);
break;
}
g_free (tmp);
}
return parent;
}
static void
desktop_file_dir_changed (GFileMonitor *monitor,
GFile *file,
GFile *other_file,
GFileMonitorEvent event_type,
gpointer user_data)
{
DesktopFileDir *dir = user_data;
gboolean do_nothing = FALSE;
/* We are not interested in receiving notifications forever just
* because someone asked about one desktop file once.
*
* After we receive the first notification, reset the dir, destroying
* the monitor. We will take this as a hint, next time that we are
* asked, that we need to check if everything is up to date.
*
* If this is a notification for a parent directory (because the
* desktop directory didn't exist) then we shouldn't fire the signal
* unless something actually changed.
*/
g_mutex_lock (&desktop_file_dir_lock);
if (dir->alternatively_watching)
{
gchar *alternative_dir;
alternative_dir = desktop_file_dir_get_alternative_dir (dir);
do_nothing = alternative_dir && g_str_equal (dir->alternatively_watching, alternative_dir);
g_free (alternative_dir);
}
if (!do_nothing)
desktop_file_dir_reset (dir);
g_mutex_unlock (&desktop_file_dir_lock);
/* Notify anyone else who may be interested */
if (!do_nothing)
g_app_info_monitor_fire ();
}
/* Internal utility functions {{{2 */
/*< internal >
* desktop_file_dir_app_name_is_masked:
* @dir: a #DesktopFileDir
* @app_name: an application ID
*
* Checks if @app_name is masked for @dir.
*
* An application is masked if a similarly-named desktop file exists in
* a desktop file directory with higher precedence. Masked desktop
* files should be ignored.
*/
static gboolean
desktop_file_dir_app_name_is_masked (DesktopFileDir *dir,
const gchar *app_name)
{
while (dir > desktop_file_dirs)
{
dir--;
if (dir->app_names && g_hash_table_contains (dir->app_names, app_name))
return TRUE;
}
return FALSE;
}
static const gchar * const *
get_lowercase_current_desktops (void)
{
static gchar **result;
if (g_once_init_enter (&result))
{
const gchar *envvar;
gchar **tmp;
envvar = g_getenv ("XDG_CURRENT_DESKTOP");
if (envvar)
{
gint i, j;
tmp = g_strsplit (envvar, G_SEARCHPATH_SEPARATOR_S, 0);
for (i = 0; tmp[i]; i++)
for (j = 0; tmp[i][j]; j++)
tmp[i][j] = g_ascii_tolower (tmp[i][j]);
}
else
tmp = g_new0 (gchar *, 0 + 1);
g_once_init_leave (&result, tmp);
}
return (const gchar **) result;
}
static const gchar * const *
get_current_desktops (const gchar *value)
{
static gchar **result;
if (g_once_init_enter (&result))
{
gchar **tmp;
if (!value)
value = g_getenv ("XDG_CURRENT_DESKTOP");
if (!value)
value = "";
tmp = g_strsplit (value, ":", 0);
g_once_init_leave (&result, tmp);
}
return (const gchar **) result;
}
/*< internal >
* add_to_table_if_appropriate:
* @apps: a string to GDesktopAppInfo hash table
* @app_name: the name of the application
* @info: a #GDesktopAppInfo, or NULL
*
* If @info is non-%NULL and non-hidden, then add it to @apps, using
* @app_name as a key.
*
* If @info is non-%NULL then this function will consume the passed-in
* reference.
*/
static void
add_to_table_if_appropriate (GHashTable *apps,
const gchar *app_name,
GDesktopAppInfo *info)
{
if (!info)
return;
if (info->hidden)
{
g_object_unref (info);
return;
}
g_free (info->desktop_id);
info->desktop_id = g_strdup (app_name);
g_hash_table_insert (apps, g_strdup (info->desktop_id), info);
}
enum
{
DESKTOP_KEY_Comment,
DESKTOP_KEY_Exec,
DESKTOP_KEY_GenericName,
DESKTOP_KEY_Keywords,
DESKTOP_KEY_Name,
DESKTOP_KEY_X_GNOME_FullName,
N_DESKTOP_KEYS
};
const gchar desktop_key_match_category[N_DESKTOP_KEYS] = {
/* Note: lower numbers are a better match.
*
* In case we want two keys to match at the same level, we can just
* use the same number for the two different keys.
*/
[DESKTOP_KEY_Name] = 1,
[DESKTOP_KEY_Exec] = 2,
[DESKTOP_KEY_Keywords] = 3,
[DESKTOP_KEY_GenericName] = 4,
[DESKTOP_KEY_X_GNOME_FullName] = 5,
[DESKTOP_KEY_Comment] = 6
};
static gchar *
desktop_key_get_name (guint key_id)
{
switch (key_id)
{
case DESKTOP_KEY_Comment:
return "Comment";
case DESKTOP_KEY_Exec:
return "Exec";
case DESKTOP_KEY_GenericName:
return "GenericName";
case DESKTOP_KEY_Keywords:
return "Keywords";
case DESKTOP_KEY_Name:
return "Name";
case DESKTOP_KEY_X_GNOME_FullName:
return "X-GNOME-FullName";
default:
g_assert_not_reached ();
}
}
/* Search global state {{{2
*
* We only ever search under a global lock, so we can use (and reuse)
* some global data to reduce allocations made while searching.
*
* In short, we keep around arrays of results that we expand as needed
* (and never shrink).
*
* static_token_results: this is where we append the results for each
* token within a given desktop directory, as we handle it (which is
* a union of all matches for this term)
*
* static_search_results: this is where we build the complete results
* for a single directory (which is an intersection of the matches
* found for each term)
*
* static_total_results: this is where we build the complete results
* across all directories (which is a union of the matches found in
* each directory)
*
* The app_names that enter these tables are always pointer-unique (in
* the sense that string equality is the same as pointer equality).
* This can be guaranteed for two reasons:
*
* - we mask appids so that a given appid will only ever appear within
* the highest-precedence directory that contains it. We never
* return search results from a lower-level directory if a desktop
* file exists in a higher-level one.
*
* - within a given directory, the string is unique because it's the
* key in the hashtable of all app_ids for that directory.
*
* We perform a merging of the results in merge_token_results(). This
* works by ordering the two lists and moving through each of them (at
* the same time) looking for common elements, rejecting uncommon ones.
* "Order" here need not mean any particular thing, as long as it is
* some order. Because of the uniqueness of our strings, we can use
* pointer order. That's what's going on in compare_results() below.
*/
struct search_result
{
const gchar *app_name;
gint category;
};
static struct search_result *static_token_results;
static gint static_token_results_size;
static gint static_token_results_allocated;
static struct search_result *static_search_results;
static gint static_search_results_size;
static gint static_search_results_allocated;
static struct search_result *static_total_results;
static gint static_total_results_size;
static gint static_total_results_allocated;
/* And some functions for performing nice operations against it */
static gint
compare_results (gconstpointer a,
gconstpointer b)
{
const struct search_result *ra = a;
const struct search_result *rb = b;
if (ra->app_name < rb->app_name)
return -1;
else if (ra->app_name > rb->app_name)
return 1;
else
return ra->category - rb->category;
}
static gint
compare_categories (gconstpointer a,
gconstpointer b)
{
const struct search_result *ra = a;
const struct search_result *rb = b;
return ra->category - rb->category;
}
static void
add_token_result (const gchar *app_name,
guint16 category)
{
if G_UNLIKELY (static_token_results_size == static_token_results_allocated)
{
static_token_results_allocated = MAX (16, static_token_results_allocated * 2);
static_token_results = g_renew (struct search_result, static_token_results, static_token_results_allocated);
}
static_token_results[static_token_results_size].app_name = app_name;
static_token_results[static_token_results_size].category = category;
static_token_results_size++;
}
static void
merge_token_results (gboolean first)
{
qsort (static_token_results, static_token_results_size, sizeof (struct search_result), compare_results);
/* If this is the first token then we are basically merging a list with
* itself -- we only perform de-duplication.
*
* If this is not the first token then we are doing a real merge.
*/
if (first)
{
const gchar *last_name = NULL;
gint i;
/* We must de-duplicate, but we do so by taking the best category
* in each case.
*
* The final list can be as large as the input here, so make sure
* we have enough room (even if it's too much room).
*/
if G_UNLIKELY (static_search_results_allocated < static_token_results_size)
{
static_search_results_allocated = static_token_results_allocated;
static_search_results = g_renew (struct search_result,
static_search_results,
static_search_results_allocated);
}
for (i = 0; i < static_token_results_size; i++)
{
/* The list is sorted so that the best match for a given id
* will be at the front, so once we have copied an id, skip
* the rest of the entries for the same id.
*/
if (static_token_results[i].app_name == last_name)
continue;
last_name = static_token_results[i].app_name;
static_search_results[static_search_results_size++] = static_token_results[i];
}
}
else
{
const gchar *last_name = NULL;
gint i, j = 0;
gint k = 0;
/* We only ever remove items from the results list, so no need to
* resize to ensure that we have enough room.
*/
for (i = 0; i < static_token_results_size; i++)
{
if (static_token_results[i].app_name == last_name)
continue;
last_name = static_token_results[i].app_name;
/* Now we only want to have a result in static_search_results
* if we already have it there *and* we have it in
* static_token_results as well. The category will be the
* lesser of the two.
*
* Skip past the results in static_search_results that are not
* going to be matches.
*/
while (k < static_search_results_size &&
static_search_results[k].app_name < static_token_results[i].app_name)
k++;
if (k < static_search_results_size &&
static_search_results[k].app_name == static_token_results[i].app_name)
{
/* We have a match.
*
* Category should be the worse of the two (ie:
* numerically larger).
*/
static_search_results[j].app_name = static_search_results[k].app_name;
static_search_results[j].category = MAX (static_search_results[k].category,
static_token_results[i].category);
j++;
}
}
static_search_results_size = j;
}
/* Clear it out for next time... */
static_token_results_size = 0;
}
static void
reset_total_search_results (void)
{
static_total_results_size = 0;
}
static void
sort_total_search_results (void)
{
qsort (static_total_results, static_total_results_size, sizeof (struct search_result), compare_categories);
}
static void
merge_directory_results (void)
{
if G_UNLIKELY (static_total_results_size + static_search_results_size > static_total_results_allocated)
{
static_total_results_allocated = MAX (16, static_total_results_allocated);
while (static_total_results_allocated < static_total_results_size + static_search_results_size)
static_total_results_allocated *= 2;
static_total_results = g_renew (struct search_result, static_total_results, static_total_results_allocated);
}
memcpy (static_total_results + static_total_results_size,
static_search_results,
static_search_results_size * sizeof (struct search_result));
static_total_results_size += static_search_results_size;
/* Clear it out for next time... */
static_search_results_size = 0;
}
/* Support for unindexed DesktopFileDirs {{{2 */
static void
get_apps_from_dir (GHashTable **apps,
const char *dirname,
const char *prefix)
{
const char *basename;
GDir *dir;
dir = g_dir_open (dirname, 0, NULL);
if (dir == NULL)
return;
while ((basename = g_dir_read_name (dir)) != NULL)
{
gchar *filename;
filename = g_build_filename (dirname, basename, NULL);
if (g_str_has_suffix (basename, ".desktop"))
{
gchar *app_name;
app_name = g_strconcat (prefix, basename, NULL);
if (*apps == NULL)
*apps = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
g_hash_table_insert (*apps, app_name, g_strdup (filename));
}
else if (g_file_test (filename, G_FILE_TEST_IS_DIR))
{
gchar *subprefix;
subprefix = g_strconcat (prefix, basename, "-", NULL);
get_apps_from_dir (apps, filename, subprefix);
g_free (subprefix);
}
g_free (filename);
}
g_dir_close (dir);
}
typedef struct
{
gchar **additions;
gchar **removals;
gchar **defaults;
} UnindexedMimeTweaks;
static void
free_mime_tweaks (gpointer data)
{
UnindexedMimeTweaks *tweaks = data;
g_strfreev (tweaks->additions);
g_strfreev (tweaks->removals);
g_strfreev (tweaks->defaults);
g_slice_free (UnindexedMimeTweaks, tweaks);
}
static UnindexedMimeTweaks *
desktop_file_dir_unindexed_get_tweaks (DesktopFileDir *dir,
const gchar *mime_type)
{
UnindexedMimeTweaks *tweaks;
gchar *unaliased_type;
unaliased_type = _g_unix_content_type_unalias (mime_type);
tweaks = g_hash_table_lookup (dir->mime_tweaks, unaliased_type);
if (tweaks == NULL)
{
tweaks = g_slice_new0 (UnindexedMimeTweaks);
g_hash_table_insert (dir->mime_tweaks, unaliased_type, tweaks);
}
else
g_free (unaliased_type);
return tweaks;
}
/* consumes 'to_add' */
static void
expand_strv (gchar ***strv_ptr,
gchar **to_add,
gchar * const *blacklist)
{
guint strv_len, add_len;
gchar **strv;
guint i, j;
if (!*strv_ptr)
{
*strv_ptr = to_add;
return;
}
strv = *strv_ptr;
strv_len = g_strv_length (strv);
add_len = g_strv_length (to_add);
strv = g_renew (gchar *, strv, strv_len + add_len + 1);
for (i = 0; to_add[i]; i++)
{
/* Don't add blacklisted strings */
if (blacklist)
for (j = 0; blacklist[j]; j++)
if (g_str_equal (to_add[i], blacklist[j]))
goto no_add;
/* Don't add duplicates already in the list */
for (j = 0; j < strv_len; j++)
if (g_str_equal (to_add[i], strv[j]))
goto no_add;
strv[strv_len++] = to_add[i];
continue;
no_add:
g_free (to_add[i]);
}
strv[strv_len] = NULL;
*strv_ptr = strv;
g_free (to_add);
}
static void
desktop_file_dir_unindexed_read_mimeapps_list (DesktopFileDir *dir,
const gchar *filename,
const gchar *added_group,
gboolean tweaks_permitted)
{
const gchar default_group[] = "Default Applications";
const gchar removed_group[] = "Removed Assocations";
UnindexedMimeTweaks *tweaks;
char **desktop_file_ids;
GKeyFile *key_file;
gchar **mime_types;
int i;
key_file = g_key_file_new ();
if (!g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, NULL))
{
g_key_file_free (key_file);
return;
}
mime_types = g_key_file_get_keys (key_file, added_group, NULL, NULL);
if G_UNLIKELY (mime_types != NULL && !tweaks_permitted)
{
g_warning ("%s contains a [%s] group, but it is not permitted here. Only the non-desktop-specific "
"mimeapps.list file may add or remove associations.", filename, added_group);
g_strfreev (mime_types);
mime_types = NULL;
}
if (mime_types != NULL)
{
for (i = 0; mime_types[i] != NULL; i++)
{
desktop_file_ids = g_key_file_get_string_list (key_file, added_group, mime_types[i], NULL, NULL);
if (desktop_file_ids)
{
tweaks = desktop_file_dir_unindexed_get_tweaks (dir, mime_types[i]);
expand_strv (&tweaks->additions, desktop_file_ids, tweaks->removals);
}
}
g_strfreev (mime_types);
}
mime_types = g_key_file_get_keys (key_file, removed_group, NULL, NULL);
if G_UNLIKELY (mime_types != NULL && !tweaks_permitted)
{
g_warning ("%s contains a [%s] group, but it is not permitted here. Only the non-desktop-specific "
"mimeapps.list file may add or remove associations.", filename, removed_group);
g_strfreev (mime_types);
mime_types = NULL;
}
if (mime_types != NULL)
{
for (i = 0; mime_types[i] != NULL; i++)
{
desktop_file_ids = g_key_file_get_string_list (key_file, removed_group, mime_types[i], NULL, NULL);
if (desktop_file_ids)
{
tweaks = desktop_file_dir_unindexed_get_tweaks (dir, mime_types[i]);
expand_strv (&tweaks->removals, desktop_file_ids, tweaks->additions);
}
}
g_strfreev (mime_types);
}
mime_types = g_key_file_get_keys (key_file, default_group, NULL, NULL);
if (mime_types != NULL)
{
for (i = 0; mime_types[i] != NULL; i++)
{
desktop_file_ids = g_key_file_get_string_list (key_file, default_group, mime_types[i], NULL, NULL);
if (desktop_file_ids)
{
tweaks = desktop_file_dir_unindexed_get_tweaks (dir, mime_types[i]);
expand_strv (&tweaks->defaults, desktop_file_ids, NULL);
}
}
g_strfreev (mime_types);
}
g_key_file_free (key_file);
}
static void
desktop_file_dir_unindexed_read_mimeapps_lists (DesktopFileDir *dir)
{
const gchar * const *desktops;
gchar *filename;
gint i;
dir->mime_tweaks = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, free_mime_tweaks);
/* We process in order of precedence, using a blacklisting approach to
* avoid recording later instructions that conflict with ones we found
* earlier.
*
* We first start with the XDG_CURRENT_DESKTOP files, in precedence
* order.
*/
desktops = get_lowercase_current_desktops ();
for (i = 0; desktops[i]; i++)
{
filename = g_strdup_printf ("%s/%s-mimeapps.list", dir->path, desktops[i]);
desktop_file_dir_unindexed_read_mimeapps_list (dir, filename, "Added Associations", FALSE);
g_free (filename);
}
/* Next, the non-desktop-specific mimeapps.list */
filename = g_strdup_printf ("%s/mimeapps.list", dir->path);
desktop_file_dir_unindexed_read_mimeapps_list (dir, filename, "Added Associations", TRUE);
g_free (filename);
/* The remaining files are only checked for in directories that might
* contain desktop files (ie: not the config dirs).
*/
if (dir->is_config)
return;
/* We have 'defaults.list' which was only ever understood by GLib. It
* exists widely, but it has never been part of any spec and it should
* be treated as deprecated. This will be removed in a future
* version.
*/
filename = g_strdup_printf ("%s/defaults.list", dir->path);
desktop_file_dir_unindexed_read_mimeapps_list (dir, filename, "Added Associations", FALSE);
g_free (filename);
/* Finally, the mimeinfo.cache, which is just a cached copy of what we
* would find in the MimeTypes= lines of all of the desktop files.
*/
filename = g_strdup_printf ("%s/mimeinfo.cache", dir->path);
desktop_file_dir_unindexed_read_mimeapps_list (dir, filename, "MIME Cache", TRUE);
g_free (filename);
}
static void
desktop_file_dir_unindexed_init (DesktopFileDir *dir)
{
if (!dir->is_config)
get_apps_from_dir (&dir->app_names, dir->path, "");
desktop_file_dir_unindexed_read_mimeapps_lists (dir);
}
static GDesktopAppInfo *
desktop_file_dir_unindexed_get_app (DesktopFileDir *dir,
const gchar *desktop_id)
{
const gchar *filename;
filename = g_hash_table_lookup (dir->app_names, desktop_id);
if (!filename)
return NULL;
return g_desktop_app_info_new_from_filename (filename);
}
static void
desktop_file_dir_unindexed_get_all (DesktopFileDir *dir,
GHashTable *apps)
{
GHashTableIter iter;
gpointer app_name;
gpointer filename;
if (dir->app_names == NULL)
return;
g_hash_table_iter_init (&iter, dir->app_names);
while (g_hash_table_iter_next (&iter, &app_name, &filename))
{
if (desktop_file_dir_app_name_is_masked (dir, app_name))
continue;
add_to_table_if_appropriate (apps, app_name, g_desktop_app_info_new_from_filename (filename));
}
}
typedef struct _MemoryIndexEntry MemoryIndexEntry;
typedef GHashTable MemoryIndex;
struct _MemoryIndexEntry
{
const gchar *app_name; /* pointer to the hashtable key */
gint match_category;
MemoryIndexEntry *next;
};
static void
memory_index_entry_free (gpointer data)
{
MemoryIndexEntry *mie = data;
while (mie)
{
MemoryIndexEntry *next = mie->next;
g_slice_free (MemoryIndexEntry, mie);
mie = next;
}
}
static void
memory_index_add_token (MemoryIndex *mi,
const gchar *token,
gint match_category,
const gchar *app_name)
{
MemoryIndexEntry *mie, *first;
mie = g_slice_new (MemoryIndexEntry);
mie->app_name = app_name;
mie->match_category = match_category;
first = g_hash_table_lookup (mi, token);
if (first)
{
mie->next = first->next;
first->next = mie;
}
else
{
mie->next = NULL;
g_hash_table_insert (mi, g_strdup (token), mie);
}
}
static void
memory_index_add_string (MemoryIndex *mi,
const gchar *string,
gint match_category,
const gchar *app_name)
{
gchar **tokens, **alternates;
gint i;
tokens = g_str_tokenize_and_fold (string, NULL, &alternates);
for (i = 0; tokens[i]; i++)
memory_index_add_token (mi, tokens[i], match_category, app_name);
for (i = 0; alternates[i]; i++)
memory_index_add_token (mi, alternates[i], match_category, app_name);
g_strfreev (alternates);
g_strfreev (tokens);
}
static MemoryIndex *
memory_index_new (void)
{
return g_hash_table_new_full (g_str_hash, g_str_equal, g_free, memory_index_entry_free);
}
static void
desktop_file_dir_unindexed_setup_search (DesktopFileDir *dir)
{
GHashTableIter iter;
gpointer app, path;
dir->memory_index = memory_index_new ();
dir->memory_implementations = memory_index_new ();
/* Nothing to search? */
if (dir->app_names == NULL)
return;
g_hash_table_iter_init (&iter, dir->app_names);
while (g_hash_table_iter_next (&iter, &app, &path))
{
GKeyFile *key_file;
if (desktop_file_dir_app_name_is_masked (dir, app))
continue;
key_file = g_key_file_new ();
if (g_key_file_load_from_file (key_file, path, G_KEY_FILE_NONE, NULL) &&
!g_key_file_get_boolean (key_file, "Desktop Entry", "Hidden", NULL))
{
/* Index the interesting keys... */
gchar **implements;
gint i;
for (i = 0; i < G_N_ELEMENTS (desktop_key_match_category); i++)
{
const gchar *value;
gchar *raw;
if (!desktop_key_match_category[i])
continue;
raw = g_key_file_get_locale_string (key_file, "Desktop Entry", desktop_key_get_name (i), NULL, NULL);
value = raw;
if (i == DESKTOP_KEY_Exec && raw != NULL)
{
/* Special handling: only match basename of first field */
gchar *space;
gchar *slash;
/* Remove extra arguments, if any */
space = raw + strcspn (raw, " \t\n"); /* IFS */
*space = '\0';
/* Skip the pathname, if any */
if ((slash = strrchr (raw, '/')))
value = slash + 1;
}
if (value)
memory_index_add_string (dir->memory_index, value, desktop_key_match_category[i], app);
g_free (raw);
}
/* Make note of the Implements= line */
implements = g_key_file_get_string_list (key_file, "Desktop Entry", "Implements", NULL, NULL);
for (i = 0; implements && implements[i]; i++)
memory_index_add_token (dir->memory_implementations, implements[i], 0, app);
g_strfreev (implements);
}
g_key_file_free (key_file);
}
}
static void
desktop_file_dir_unindexed_search (DesktopFileDir *dir,
const gchar *search_token)
{
GHashTableIter iter;
gpointer key, value;
if (!dir->memory_index)
desktop_file_dir_unindexed_setup_search (dir);
g_hash_table_iter_init (&iter, dir->memory_index);
while (g_hash_table_iter_next (&iter, &key, &value))
{
MemoryIndexEntry *mie = value;
if (!g_str_has_prefix (key, search_token))
continue;
while (mie)
{
add_token_result (mie->app_name, mie->match_category);
mie = mie->next;
}
}
}
static gboolean
array_contains (GPtrArray *array,
const gchar *str)
{
gint i;
for (i = 0; i < array->len; i++)
if (g_str_equal (array->pdata[i], str))
return TRUE;
return FALSE;
}
static void
desktop_file_dir_unindexed_mime_lookup (DesktopFileDir *dir,
const gchar *mime_type,
GPtrArray *hits,
GPtrArray *blacklist)
{
UnindexedMimeTweaks *tweaks;
gint i;
tweaks = g_hash_table_lookup (dir->mime_tweaks, mime_type);
if (!tweaks)
return;
if (tweaks->additions)
{
for (i = 0; tweaks->additions[i]; i++)
{
gchar *app_name = tweaks->additions[i];
if (!desktop_file_dir_app_name_is_masked (dir, app_name) &&
!array_contains (blacklist, app_name) && !array_contains (hits, app_name))
g_ptr_array_add (hits, g_strdup (app_name));
}
}
if (tweaks->removals)
{
for (i = 0; tweaks->removals[i]; i++)
{
gchar *app_name = tweaks->removals[i];
if (!desktop_file_dir_app_name_is_masked (dir, app_name) &&
!array_contains (blacklist, app_name) && !array_contains (hits, app_name))
g_ptr_array_add (blacklist, app_name);
}
}
}
static void
desktop_file_dir_unindexed_default_lookup (DesktopFileDir *dir,
const gchar *mime_type,
GPtrArray *results)
{
UnindexedMimeTweaks *tweaks;
gint i;
tweaks = g_hash_table_lookup (dir->mime_tweaks, mime_type);
if (!tweaks || !tweaks->defaults)
return;
for (i = 0; tweaks->defaults[i]; i++)
{
gchar *app_name = tweaks->defaults[i];
if (!array_contains (results, app_name))
g_ptr_array_add (results, g_strdup (app_name));
}
}
static void
desktop_file_dir_unindexed_get_implementations (DesktopFileDir *dir,
GList **results,
const gchar *interface)
{
MemoryIndexEntry *mie;
if (!dir->memory_index)
desktop_file_dir_unindexed_setup_search (dir);
for (mie = g_hash_table_lookup (dir->memory_implementations, interface); mie; mie = mie->next)
*results = g_list_prepend (*results, g_strdup (mie->app_name));
}
/* DesktopFileDir "API" {{{2 */
/*< internal >
* desktop_file_dir_create:
* @array: the #GArray to add a new item to
* @data_dir: an XDG_DATA_DIR
*
* Creates a #DesktopFileDir for the corresponding @data_dir, adding it
* to @array.
*/
static void
desktop_file_dir_create (GArray *array,
const gchar *data_dir)
{
DesktopFileDir dir = { 0, };
dir.path = g_build_filename (data_dir, "applications", NULL);
g_array_append_val (array, dir);
}
/*< internal >
* desktop_file_dir_create:
* @array: the #GArray to add a new item to
* @config_dir: an XDG_CONFIG_DIR
*
* Just the same as desktop_file_dir_create() except that it does not
* add the "applications" directory. It also marks the directory as
* config-only, which prevents us from attempting to find desktop files
* here.
*/
static void
desktop_file_dir_create_for_config (GArray *array,
const gchar *config_dir)
{
DesktopFileDir dir = { 0, };
dir.path = g_strdup (config_dir);
dir.is_config = TRUE;
g_array_append_val (array, dir);
}
/*< internal >
* desktop_file_dir_reset:
* @dir: a #DesktopFileDir
*
* Cleans up @dir, releasing most resources that it was using.
*/
static void
desktop_file_dir_reset (DesktopFileDir *dir)
{
if (dir->alternatively_watching)
{
g_free (dir->alternatively_watching);
dir->alternatively_watching = NULL;
}
if (dir->monitor)
{
g_signal_handlers_disconnect_by_func (dir->monitor, desktop_file_dir_changed, dir);
g_object_unref (dir->monitor);
dir->monitor = NULL;
}
if (dir->app_names)
{
g_hash_table_unref (dir->app_names);
dir->app_names = NULL;
}
if (dir->memory_index)
{
g_hash_table_unref (dir->memory_index);
dir->memory_index = NULL;
}
if (dir->mime_tweaks)
{
g_hash_table_unref (dir->mime_tweaks);
dir->mime_tweaks = NULL;
}
if (dir->memory_implementations)
{
g_hash_table_unref (dir->memory_implementations);
dir->memory_implementations = NULL;
}
dir->is_setup = FALSE;
}
/*< internal >
* desktop_file_dir_init:
* @dir: a #DesktopFileDir
*
* Does initial setup for @dir
*
* You should only call this if @dir is not already setup.
*/
static void
desktop_file_dir_init (DesktopFileDir *dir)
{
const gchar *watch_dir;
g_assert (!dir->is_setup);
g_assert (!dir->alternatively_watching);
g_assert (!dir->monitor);
dir->alternatively_watching = desktop_file_dir_get_alternative_dir (dir);
watch_dir = dir->alternatively_watching ? dir->alternatively_watching : dir->path;
/* There is a very thin race here if the watch_dir has been _removed_
* between when we checked for it and when we establish the watch.
* Removes probably don't happen in usual operation, and even if it
* does (and we catch the unlikely race), the only degradation is that
* we will fall back to polling.
*/
dir->monitor = g_local_directory_monitor_new_in_worker (watch_dir, G_FILE_MONITOR_NONE, NULL);
if (dir->monitor)
{
g_signal_connect (dir->monitor, "changed", G_CALLBACK (desktop_file_dir_changed), dir);
g_local_directory_monitor_start (dir->monitor);
}
desktop_file_dir_unindexed_init (dir);
dir->is_setup = TRUE;
}
/*< internal >
* desktop_file_dir_get_app:
* @dir: a DesktopFileDir
* @desktop_id: the desktop ID to load
*
* Creates the #GDesktopAppInfo for the given @desktop_id if it exists
* within @dir, even if it is hidden.
*
* This function does not check if @desktop_id would be masked by a
* directory with higher precedence. The caller must do so.
*/
static GDesktopAppInfo *
desktop_file_dir_get_app (DesktopFileDir *dir,
const gchar *desktop_id)
{
if (!dir->app_names)
return NULL;
return desktop_file_dir_unindexed_get_app (dir, desktop_id);
}
/*< internal >
* desktop_file_dir_get_all:
* @dir: a DesktopFileDir
* @apps: a #GHashTable<string, GDesktopAppInfo>
*
* Loads all desktop files in @dir and adds them to @apps, careful to
* ensure we don't add any files masked by a similarly-named file in a
* higher-precedence directory.
*/
static void
desktop_file_dir_get_all (DesktopFileDir *dir,
GHashTable *apps)
{
desktop_file_dir_unindexed_get_all (dir, apps);
}
/*< internal >
* desktop_file_dir_mime_lookup:
* @dir: a #DesktopFileDir
* @mime_type: the mime type to look up
* @hits: the array to store the hits
* @blacklist: the array to store the blacklist
*
* Does a lookup of a mimetype against one desktop file directory,
* recording any hits and blacklisting and "Removed" associations (so
* later directories don't record them as hits).
*
* The items added to @hits are duplicated, but the ones in @blacklist
* are weak pointers. This facilitates simply freeing the blacklist
* (which is only used for internal bookkeeping) but using the pdata of
* @hits as the result of the operation.
*/
static void
desktop_file_dir_mime_lookup (DesktopFileDir *dir,
const gchar *mime_type,
GPtrArray *hits,
GPtrArray *blacklist)
{
desktop_file_dir_unindexed_mime_lookup (dir, mime_type, hits, blacklist);
}
/*< internal >
* desktop_file_dir_default_lookup:
* @dir: a #DesktopFileDir
* @mime_type: the mime type to look up
* @results: an array to store the results in
*
* Collects the "default" applications for a given mime type from @dir.
*/
static void
desktop_file_dir_default_lookup (DesktopFileDir *dir,
const gchar *mime_type,
GPtrArray *results)
{
desktop_file_dir_unindexed_default_lookup (dir, mime_type, results);
}
/*< internal >
* desktop_file_dir_search:
* @dir: a #DesktopFileDir
* @term: a normalised and casefolded search term
*
* Finds the names of applications in @dir that match @term.
*/
static void
desktop_file_dir_search (DesktopFileDir *dir,
const gchar *search_token)
{
desktop_file_dir_unindexed_search (dir, search_token);
}
static void
desktop_file_dir_get_implementations (DesktopFileDir *dir,
GList **results,
const gchar *interface)
{
desktop_file_dir_unindexed_get_implementations (dir, results, interface);
}
/* Lock/unlock and global setup API {{{2 */
static void
desktop_file_dirs_lock (void)
{
gint i;
g_mutex_lock (&desktop_file_dir_lock);
if (desktop_file_dirs == NULL)
{
const char * const *dirs;
GArray *tmp;
gint i;
tmp = g_array_new (FALSE, FALSE, sizeof (DesktopFileDir));
/* First, the configs. Highest priority: the user's ~/.config */
desktop_file_dir_create_for_config (tmp, g_get_user_config_dir ());
/* Next, the system configs (/etc/xdg, and so on). */
dirs = g_get_system_config_dirs ();
for (i = 0; dirs[i]; i++)
desktop_file_dir_create_for_config (tmp, dirs[i]);
/* Now the data. Highest priority: the user's ~/.local/share/applications */
desktop_file_dir_user_data_index = tmp->len;
desktop_file_dir_create (tmp, g_get_user_data_dir ());
/* Following that, XDG_DATA_DIRS/applications, in order */
dirs = g_get_system_data_dirs ();
for (i = 0; dirs[i]; i++)
desktop_file_dir_create (tmp, dirs[i]);
/* The list of directories will never change after this. */
desktop_file_dirs = (DesktopFileDir *) tmp->data;
n_desktop_file_dirs = tmp->len;
g_array_free (tmp, FALSE);
}
for (i = 0; i < n_desktop_file_dirs; i++)
if (!desktop_file_dirs[i].is_setup)
desktop_file_dir_init (&desktop_file_dirs[i]);
}
static void
desktop_file_dirs_unlock (void)
{
g_mutex_unlock (&desktop_file_dir_lock);
}
static void
desktop_file_dirs_invalidate_user_config (void)
{
g_mutex_lock (&desktop_file_dir_lock);
if (n_desktop_file_dirs)
desktop_file_dir_reset (&desktop_file_dirs[desktop_file_dir_user_config_index]);
g_mutex_unlock (&desktop_file_dir_lock);
}
static void
desktop_file_dirs_invalidate_user_data (void)
{
g_mutex_lock (&desktop_file_dir_lock);
if (n_desktop_file_dirs)
desktop_file_dir_reset (&desktop_file_dirs[desktop_file_dir_user_data_index]);
g_mutex_unlock (&desktop_file_dir_lock);
}
/* GDesktopAppInfo implementation {{{1 */
/* GObject implementation {{{2 */
static void
g_desktop_app_info_finalize (GObject *object)
{
GDesktopAppInfo *info;
info = G_DESKTOP_APP_INFO (object);
g_free (info->desktop_id);
g_free (info->filename);
if (info->keyfile)
g_key_file_unref (info->keyfile);
g_free (info->name);
g_free (info->generic_name);
g_free (info->fullname);
g_free (info->comment);
g_free (info->icon_name);
if (info->icon)
g_object_unref (info->icon);
g_strfreev (info->keywords);
g_strfreev (info->only_show_in);
g_strfreev (info->not_show_in);
g_free (info->try_exec);
g_free (info->exec);
g_free (info->binary);
g_free (info->path);
g_free (info->categories);
g_free (info->startup_wm_class);
g_strfreev (info->mime_types);
g_free (info->app_id);
g_strfreev (info->actions);
G_OBJECT_CLASS (g_desktop_app_info_parent_class)->finalize (object);
}
static void
g_desktop_app_info_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GDesktopAppInfo *self = G_DESKTOP_APP_INFO (object);
switch (prop_id)
{
case PROP_FILENAME:
self->filename = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
g_desktop_app_info_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GDesktopAppInfo *self = G_DESKTOP_APP_INFO (object);
switch (prop_id)
{
case PROP_FILENAME:
g_value_set_string (value, self->filename);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
g_desktop_app_info_class_init (GDesktopAppInfoClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->get_property = g_desktop_app_info_get_property;
gobject_class->set_property = g_desktop_app_info_set_property;
gobject_class->finalize = g_desktop_app_info_finalize;
/**
* GDesktopAppInfo:filename:
*
* The origin filename of this #GDesktopAppInfo
*/
g_object_class_install_property (gobject_class,
PROP_FILENAME,
g_param_spec_string ("filename", "Filename", "", NULL,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
}
static void
g_desktop_app_info_init (GDesktopAppInfo *local)
{
}
/* Construction... {{{2 */
/*< internal >
* binary_from_exec:
* @exec: an exec line
*
* Returns the first word in an exec line (ie: the binary name).
*
* If @exec is " progname --foo %F" then returns "progname".
*/
static char *
binary_from_exec (const char *exec)
{
const char *p, *start;
p = exec;
while (*p == ' ')
p++;
start = p;
while (*p != ' ' && *p != 0)
p++;
return g_strndup (start, p - start);
}
static gboolean
g_desktop_app_info_load_from_keyfile (GDesktopAppInfo *info,
GKeyFile *key_file)
{
char *start_group;
char *type;
char *try_exec;
char *exec;
gboolean bus_activatable;
start_group = g_key_file_get_start_group (key_file);
if (start_group == NULL || strcmp (start_group, G_KEY_FILE_DESKTOP_GROUP) != 0)
{
g_free (start_group);
return FALSE;
}
g_free (start_group);
type = g_key_file_get_string (key_file,
G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_TYPE,
NULL);
if (type == NULL || strcmp (type, G_KEY_FILE_DESKTOP_TYPE_APPLICATION) != 0)
{
g_free (type);
return FALSE;
}
g_free (type);
try_exec = g_key_file_get_string (key_file,
G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_TRY_EXEC,
NULL);
if (try_exec && try_exec[0] != '\0')
{
char *t;
t = g_find_program_in_path (try_exec);
if (t == NULL)
{
g_free (try_exec);
return FALSE;
}
g_free (t);
}
exec = g_key_file_get_string (key_file,
G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_EXEC,
NULL);
if (exec && exec[0] != '\0')
{
gint argc;
char **argv;
if (!g_shell_parse_argv (exec, &argc, &argv, NULL))
{
g_free (exec);
g_free (try_exec);
return FALSE;
}
else
{
char *t;
t = g_find_program_in_path (argv[0]);
g_strfreev (argv);
if (t == NULL)
{
g_free (exec);
g_free (try_exec);
return FALSE;
}
g_free (t);
}
}
info->name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NAME, NULL, NULL);
info->generic_name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, GENERIC_NAME_KEY, NULL, NULL);
info->fullname = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, FULL_NAME_KEY, NULL, NULL);
info->keywords = g_key_file_get_locale_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, KEYWORDS_KEY, NULL, NULL, NULL);
info->comment = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_COMMENT, NULL, NULL);
info->nodisplay = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY, NULL) != FALSE;
info->icon_name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ICON, NULL, NULL);
info->only_show_in = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ONLY_SHOW_IN, NULL, NULL);
info->not_show_in = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NOT_SHOW_IN, NULL, NULL);
info->try_exec = try_exec;
info->exec = exec;
info->path = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_PATH, NULL);
info->terminal = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_TERMINAL, NULL) != FALSE;
info->startup_notify = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_STARTUP_NOTIFY, NULL) != FALSE;
info->no_fuse = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, "X-GIO-NoFuse", NULL) != FALSE;
info->hidden = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_HIDDEN, NULL) != FALSE;
info->categories = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_CATEGORIES, NULL);
info->startup_wm_class = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, STARTUP_WM_CLASS_KEY, NULL);
info->mime_types = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_MIME_TYPE, NULL, NULL);
bus_activatable = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_DBUS_ACTIVATABLE, NULL);
info->actions = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ACTIONS, NULL, NULL);
/* Remove the special-case: no Actions= key just means 0 extra actions */
if (info->actions == NULL)
info->actions = g_new0 (gchar *, 0 + 1);
info->icon = NULL;
if (info->icon_name)
{
if (g_path_is_absolute (info->icon_name))
{
GFile *file;
file = g_file_new_for_path (info->icon_name);
info->icon = g_file_icon_new (file);
g_object_unref (file);
}
else
{
char *p;
/* Work around a common mistake in desktop files */
if ((p = strrchr (info->icon_name, '.')) != NULL &&
(strcmp (p, ".png") == 0 ||
strcmp (p, ".xpm") == 0 ||
strcmp (p, ".svg") == 0))
*p = 0;
info->icon = g_themed_icon_new (info->icon_name);
}
}
if (info->exec)
info->binary = binary_from_exec (info->exec);
if (info->path && info->path[0] == '\0')
{
g_free (info->path);
info->path = NULL;
}
/* Can only be DBusActivatable if we know the filename, which means
* that this won't work for the load-from-keyfile case.
*/
if (bus_activatable && info->filename)
{
gchar *basename;
gchar *last_dot;
basename = g_path_get_basename (info->filename);
last_dot = strrchr (basename, '.');
if (last_dot && g_str_equal (last_dot, ".desktop"))
{
*last_dot = '\0';
if (g_dbus_is_interface_name (basename))
info->app_id = g_strdup (basename);
}
g_free (basename);
}
info->keyfile = g_key_file_ref (key_file);
return TRUE;
}
static gboolean
g_desktop_app_info_load_file (GDesktopAppInfo *self)
{
GKeyFile *key_file;
gboolean retval = FALSE;
g_return_val_if_fail (self->filename != NULL, FALSE);
self->desktop_id = g_path_get_basename (self->filename);
key_file = g_key_file_new ();
if (g_key_file_load_from_file (key_file, self->filename, G_KEY_FILE_NONE, NULL))
retval = g_desktop_app_info_load_from_keyfile (self, key_file);
g_key_file_unref (key_file);
return retval;
}
/**
* g_desktop_app_info_new_from_keyfile:
* @key_file: an opened #GKeyFile
*
* Creates a new #GDesktopAppInfo.
*
* Returns: a new #GDesktopAppInfo or %NULL on error.
*
* Since: 2.18
**/
GDesktopAppInfo *
g_desktop_app_info_new_from_keyfile (GKeyFile *key_file)
{
GDesktopAppInfo *info;
info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL);
info->filename = NULL;
if (!g_desktop_app_info_load_from_keyfile (info, key_file))
{
g_object_unref (info);
return NULL;
}
return info;
}
/**
* g_desktop_app_info_new_from_filename:
* @filename: the path of a desktop file, in the GLib filename encoding
*
* Creates a new #GDesktopAppInfo.
*
* Returns: a new #GDesktopAppInfo or %NULL on error.
**/
GDesktopAppInfo *
g_desktop_app_info_new_from_filename (const char *filename)
{
GDesktopAppInfo *info = NULL;
info = g_object_new (G_TYPE_DESKTOP_APP_INFO, "filename", filename, NULL);
if (!g_desktop_app_info_load_file (info))
{
g_object_unref (info);
return NULL;
}
return info;
}
/**
* g_desktop_app_info_new:
* @desktop_id: the desktop file id
*
* Creates a new #GDesktopAppInfo based on a desktop file id.
*
* A desktop file id is the basename of the desktop file, including the
* .desktop extension. GIO is looking for a desktop file with this name
* in the `applications` subdirectories of the XDG
* data directories (i.e. the directories specified in the `XDG_DATA_HOME`
* and `XDG_DATA_DIRS` environment variables). GIO also supports the
* prefix-to-subdirectory mapping that is described in the
* [Menu Spec](http://standards.freedesktop.org/menu-spec/latest/)
* (i.e. a desktop id of kde-foo.desktop will match
* `/usr/share/applications/kde/foo.desktop`).
*
* Returns: a new #GDesktopAppInfo, or %NULL if no desktop file with that id
*/
GDesktopAppInfo *
g_desktop_app_info_new (const char *desktop_id)
{
GDesktopAppInfo *appinfo = NULL;
guint i;
desktop_file_dirs_lock ();
for (i = 0; i < n_desktop_file_dirs; i++)
{
appinfo = desktop_file_dir_get_app (&desktop_file_dirs[i], desktop_id);
if (appinfo)
break;
}
desktop_file_dirs_unlock ();
if (appinfo == NULL)
return NULL;
g_free (appinfo->desktop_id);
appinfo->desktop_id = g_strdup (desktop_id);
if (g_desktop_app_info_get_is_hidden (appinfo))
{
g_object_unref (appinfo);
appinfo = NULL;
}
return appinfo;
}
static GAppInfo *
g_desktop_app_info_dup (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
GDesktopAppInfo *new_info;
new_info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL);
new_info->filename = g_strdup (info->filename);
new_info->desktop_id = g_strdup (info->desktop_id);
if (info->keyfile)
new_info->keyfile = g_key_file_ref (info->keyfile);
new_info->name = g_strdup (info->name);
new_info->generic_name = g_strdup (info->generic_name);
new_info->fullname = g_strdup (info->fullname);
new_info->keywords = g_strdupv (info->keywords);
new_info->comment = g_strdup (info->comment);
new_info->nodisplay = info->nodisplay;
new_info->icon_name = g_strdup (info->icon_name);
if (info->icon)
new_info->icon = g_object_ref (info->icon);
new_info->only_show_in = g_strdupv (info->only_show_in);
new_info->not_show_in = g_strdupv (info->not_show_in);
new_info->try_exec = g_strdup (info->try_exec);
new_info->exec = g_strdup (info->exec);
new_info->binary = g_strdup (info->binary);
new_info->path = g_strdup (info->path);
new_info->app_id = g_strdup (info->app_id);
new_info->hidden = info->hidden;
new_info->terminal = info->terminal;
new_info->startup_notify = info->startup_notify;
return G_APP_INFO (new_info);
}
/* GAppInfo interface implementation functions {{{2 */
static gboolean
g_desktop_app_info_equal (GAppInfo *appinfo1,
GAppInfo *appinfo2)
{
GDesktopAppInfo *info1 = G_DESKTOP_APP_INFO (appinfo1);
GDesktopAppInfo *info2 = G_DESKTOP_APP_INFO (appinfo2);
if (info1->desktop_id == NULL ||
info2->desktop_id == NULL)
return info1 == info2;
return strcmp (info1->desktop_id, info2->desktop_id) == 0;
}
static const char *
g_desktop_app_info_get_id (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->desktop_id;
}
static const char *
g_desktop_app_info_get_name (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (info->name == NULL)
return _("Unnamed");
return info->name;
}
static const char *
g_desktop_app_info_get_display_name (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (info->fullname == NULL)
return g_desktop_app_info_get_name (appinfo);
return info->fullname;
}
/**
* g_desktop_app_info_get_is_hidden:
* @info: a #GDesktopAppInfo.
*
* A desktop file is hidden if the Hidden key in it is
* set to True.
*
* Returns: %TRUE if hidden, %FALSE otherwise.
**/
gboolean
g_desktop_app_info_get_is_hidden (GDesktopAppInfo *info)
{
return info->hidden;
}
/**
* g_desktop_app_info_get_filename:
* @info: a #GDesktopAppInfo
*
* When @info was created from a known filename, return it. In some
* situations such as the #GDesktopAppInfo returned from
* g_desktop_app_info_new_from_keyfile(), this function will return %NULL.
*
* Returns: The full path to the file for @info, or %NULL if not known.
* Since: 2.24
*/
const char *
g_desktop_app_info_get_filename (GDesktopAppInfo *info)
{
return info->filename;
}
static const char *
g_desktop_app_info_get_description (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->comment;
}
static const char *
g_desktop_app_info_get_executable (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->binary;
}
static const char *
g_desktop_app_info_get_commandline (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->exec;
}
static GIcon *
g_desktop_app_info_get_icon (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->icon;
}
/**
* g_desktop_app_info_get_categories:
* @info: a #GDesktopAppInfo
*
* Gets the categories from the desktop file.
*
* Returns: The unparsed Categories key from the desktop file;
* i.e. no attempt is made to split it by ';' or validate it.
*/
const char *
g_desktop_app_info_get_categories (GDesktopAppInfo *info)
{
return info->categories;
}
/**
* g_desktop_app_info_get_keywords:
* @info: a #GDesktopAppInfo
*
* Gets the keywords from the desktop file.
*
* Returns: (transfer none): The value of the Keywords key
*
* Since: 2.32
*/
const char * const *
g_desktop_app_info_get_keywords (GDesktopAppInfo *info)
{
return (const char * const *)info->keywords;
}
/**
* g_desktop_app_info_get_generic_name:
* @info: a #GDesktopAppInfo
*
* Gets the generic name from the destkop file.
*
* Returns: The value of the GenericName key
*/
const char *
g_desktop_app_info_get_generic_name (GDesktopAppInfo *info)
{
return info->generic_name;
}
/**
* g_desktop_app_info_get_nodisplay:
* @info: a #GDesktopAppInfo
*
* Gets the value of the NoDisplay key, which helps determine if the
* application info should be shown in menus. See
* #G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY and g_app_info_should_show().
*
* Returns: The value of the NoDisplay key
*
* Since: 2.30
*/
gboolean
g_desktop_app_info_get_nodisplay (GDesktopAppInfo *info)
{
return info->nodisplay;
}
/**
* g_desktop_app_info_get_show_in:
* @info: a #GDesktopAppInfo
* @desktop_env: (nullable): a string specifying a desktop name
*
* Checks if the application info should be shown in menus that list available
* applications for a specific name of the desktop, based on the
* `OnlyShowIn` and `NotShowIn` keys.
*
* @desktop_env should typically be given as %NULL, in which case the
* `XDG_CURRENT_DESKTOP` environment variable is consulted. If you want
* to override the default mechanism then you may specify @desktop_env,
* but this is not recommended.
*
* Note that g_app_info_should_show() for @info will include this check (with
* %NULL for @desktop_env) as well as additional checks.
*
* Returns: %TRUE if the @info should be shown in @desktop_env according to the
* `OnlyShowIn` and `NotShowIn` keys, %FALSE
* otherwise.
*
* Since: 2.30
*/
gboolean
g_desktop_app_info_get_show_in (GDesktopAppInfo *info,
const gchar *desktop_env)
{
const gchar *specified_envs[] = { desktop_env, NULL };
const gchar * const *envs;
gint i;
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), FALSE);
if (desktop_env)
envs = specified_envs;
else
envs = get_current_desktops (NULL);
for (i = 0; envs[i]; i++)
{
gint j;
if (info->only_show_in)
for (j = 0; info->only_show_in[j]; j++)
if (g_str_equal (info->only_show_in[j], envs[i]))
return TRUE;
if (info->not_show_in)
for (j = 0; info->not_show_in[j]; j++)
if (g_str_equal (info->not_show_in[j], envs[i]))
return FALSE;
}
return info->only_show_in == NULL;
}
/* Launching... {{{2 */
static char *
expand_macro_single (char macro, char *uri)
{
GFile *file;
char *result = NULL;
char *path = NULL;
char *name;
file = g_file_new_for_uri (uri);
switch (macro)
{
case 'u':
case 'U':
result = g_shell_quote (uri);
break;
case 'f':
case 'F':
path = g_file_get_path (file);
if (path)
result = g_shell_quote (path);
break;
case 'd':
case 'D':
path = g_file_get_path (file);
if (path)
{
name = g_path_get_dirname (path);
result = g_shell_quote (name);
g_free (name);
}
break;
case 'n':
case 'N':
path = g_file_get_path (file);
if (path)
{
name = g_path_get_basename (path);
result = g_shell_quote (name);
g_free (name);
}
break;
}
g_object_unref (file);
g_free (path);
return result;
}
static void
expand_macro (char macro,
GString *exec,
GDesktopAppInfo *info,
GList **uri_list)
{
GList *uris = *uri_list;
char *expanded;
gboolean force_file_uri;
char force_file_uri_macro;
char *uri;
g_return_if_fail (exec != NULL);
/* On %u and %U, pass POSIX file path pointing to the URI via
* the FUSE mount in ~/.gvfs. Note that if the FUSE daemon isn't
* running or the URI doesn't have a POSIX file path via FUSE
* we'll just pass the URI.
*/
force_file_uri_macro = macro;
force_file_uri = FALSE;
if (!info->no_fuse)
{
switch (macro)
{
case 'u':
force_file_uri_macro = 'f';
force_file_uri = TRUE;
break;
case 'U':
force_file_uri_macro = 'F';
force_file_uri = TRUE;
break;
default:
break;
}
}
switch (macro)
{
case 'u':
case 'f':
case 'd':
case 'n':
if (uris)
{
uri = uris->data;
if (!force_file_uri ||
/* Pass URI if it contains an anchor */
strchr (uri, '#') != NULL)
{
expanded = expand_macro_single (macro, uri);
}
else
{
expanded = expand_macro_single (force_file_uri_macro, uri);
if (expanded == NULL)
expanded = expand_macro_single (macro, uri);
}
if (expanded)
{
g_string_append (exec, expanded);
g_free (expanded);
}
uris = uris->next;
}
break;
case 'U':
case 'F':
case 'D':
case 'N':
while (uris)
{
uri = uris->data;
if (!force_file_uri ||
/* Pass URI if it contains an anchor */
strchr (uri, '#') != NULL)
{
expanded = expand_macro_single (macro, uri);
}
else
{
expanded = expand_macro_single (force_file_uri_macro, uri);
if (expanded == NULL)
expanded = expand_macro_single (macro, uri);
}
if (expanded)
{
g_string_append (exec, expanded);
g_free (expanded);
}
uris = uris->next;
if (uris != NULL && expanded)
g_string_append_c (exec, ' ');
}
break;
case 'i':
if (info->icon_name)
{
g_string_append (exec, "--icon ");
expanded = g_shell_quote (info->icon_name);
g_string_append (exec, expanded);
g_free (expanded);
}
break;
case 'c':
if (info->name)
{
expanded = g_shell_quote (info->name);
g_string_append (exec, expanded);
g_free (expanded);
}
break;
case 'k':
if (info->filename)
{
expanded = g_shell_quote (info->filename);
g_string_append (exec, expanded);
g_free (expanded);
}
break;
case 'm': /* deprecated */
break;
case '%':
g_string_append_c (exec, '%');
break;
}
*uri_list = uris;
}
static gboolean
expand_application_parameters (GDesktopAppInfo *info,
const gchar *exec_line,
GList **uris,
int *argc,
char ***argv,
GError **error)
{
GList *uri_list = *uris;
const char *p = exec_line;
GString *expanded_exec;
gboolean res;
if (exec_line == NULL)
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
_("Desktop file didn't specify Exec field"));
return FALSE;
}
expanded_exec = g_string_new (NULL);
while (*p)
{
if (p[0] == '%' && p[1] != '\0')
{
expand_macro (p[1], expanded_exec, info, uris);
p++;
}
else
g_string_append_c (expanded_exec, *p);
p++;
}
/* No file substitutions */
if (uri_list == *uris && uri_list != NULL)
{
/* If there is no macro default to %f. This is also what KDE does */
g_string_append_c (expanded_exec, ' ');
expand_macro ('f', expanded_exec, info, uris);
}
res = g_shell_parse_argv (expanded_exec->str, argc, argv, error);
g_string_free (expanded_exec, TRUE);
return res;
}
static gboolean
prepend_terminal_to_vector (int *argc,
char ***argv)
{
#ifndef G_OS_WIN32
char **real_argv;
int real_argc;
int i, j;
char **term_argv = NULL;
int term_argc = 0;
char *check;
char **the_argv;
g_return_val_if_fail (argc != NULL, FALSE);
g_return_val_if_fail (argv != NULL, FALSE);
/* sanity */
if(*argv == NULL)
*argc = 0;
the_argv = *argv;
/* compute size if not given */
if (*argc < 0)
{
for (i = 0; the_argv[i] != NULL; i++)
;
*argc = i;
}
term_argc = 2;
term_argv = g_new0 (char *, 3);
check = g_find_program_in_path ("gnome-terminal");
if (check != NULL)
{
term_argv[0] = check;
/* Note that gnome-terminal takes -x and
* as -e in gnome-terminal is broken we use that. */
term_argv[1] = g_strdup ("-x");
}
else
{
if (check == NULL)
check = g_find_program_in_path ("nxterm");
if (check == NULL)
check = g_find_program_in_path ("color-xterm");
if (check == NULL)
check = g_find_program_in_path ("rxvt");
if (check == NULL)
check = g_find_program_in_path ("xterm");
if (check == NULL)
check = g_find_program_in_path ("dtterm");
if (check == NULL)
{
check = g_strdup ("xterm");
g_warning ("couldn't find a terminal, falling back to xterm");
}
term_argv[0] = check;
term_argv[1] = g_strdup ("-e");
}
real_argc = term_argc + *argc;
real_argv = g_new (char *, real_argc + 1);
for (i = 0; i < term_argc; i++)
real_argv[i] = term_argv[i];
for (j = 0; j < *argc; j++, i++)
real_argv[i] = (char *)the_argv[j];
real_argv[i] = NULL;
g_free (*argv);
*argv = real_argv;
*argc = real_argc;
/* we use g_free here as we sucked all the inner strings
* out from it into real_argv */
g_free (term_argv);
return TRUE;
#else
return FALSE;
#endif /* G_OS_WIN32 */
}
static GList *
create_files_for_uris (GList *uris)
{
GList *res;
GList *iter;
res = NULL;
for (iter = uris; iter; iter = iter->next)
{
GFile *file = g_file_new_for_uri ((char *)iter->data);
res = g_list_prepend (res, file);
}
return g_list_reverse (res);
}
typedef struct
{
GSpawnChildSetupFunc user_setup;
gpointer user_setup_data;
char *pid_envvar;
} ChildSetupData;
static void
child_setup (gpointer user_data)
{
ChildSetupData *data = user_data;
if (data->pid_envvar)
{
pid_t pid = getpid ();
char buf[20];
int i;
/* Write the pid into the space already reserved for it in the
* environment array. We can't use sprintf because it might
* malloc, so we do it by hand. It's simplest to write the pid
* out backwards first, then copy it over.
*/
for (i = 0; pid; i++, pid /= 10)
buf[i] = (pid % 10) + '0';
for (i--; i >= 0; i--)
*(data->pid_envvar++) = buf[i];
*data->pid_envvar = '\0';
}
if (data->user_setup)
data->user_setup (data->user_setup_data);
}
static void
notify_desktop_launch (GDBusConnection *session_bus,
GDesktopAppInfo *info,
long pid,
const char *display,
const char *sn_id,
GList *uris)
{
GDBusMessage *msg;
GVariantBuilder uri_variant;
GVariantBuilder extras_variant;
GList *iter;
const char *desktop_file_id;
const char *gio_desktop_file;
if (session_bus == NULL)
return;
g_variant_builder_init (&uri_variant, G_VARIANT_TYPE ("as"));
for (iter = uris; iter; iter = iter->next)
g_variant_builder_add (&uri_variant, "s", iter->data);
g_variant_builder_init (&extras_variant, G_VARIANT_TYPE ("a{sv}"));
if (sn_id != NULL && g_utf8_validate (sn_id, -1, NULL))
g_variant_builder_add (&extras_variant, "{sv}",
"startup-id",
g_variant_new ("s",
sn_id));
gio_desktop_file = g_getenv ("GIO_LAUNCHED_DESKTOP_FILE");
if (gio_desktop_file != NULL)
g_variant_builder_add (&extras_variant, "{sv}",
"origin-desktop-file",
g_variant_new_bytestring (gio_desktop_file));
if (g_get_prgname () != NULL)
g_variant_builder_add (&extras_variant, "{sv}",
"origin-prgname",
g_variant_new_bytestring (g_get_prgname ()));
g_variant_builder_add (&extras_variant, "{sv}",
"origin-pid",
g_variant_new ("x",
(gint64)getpid ()));
if (info->filename)
desktop_file_id = info->filename;
else if (info->desktop_id)
desktop_file_id = info->desktop_id;
else
desktop_file_id = "";
msg = g_dbus_message_new_signal ("/org/gtk/gio/DesktopAppInfo",
"org.gtk.gio.DesktopAppInfo",
"Launched");
g_dbus_message_set_body (msg, g_variant_new ("(@aysxasa{sv})",
g_variant_new_bytestring (desktop_file_id),
display ? display : "",
(gint64)pid,
&uri_variant,
&extras_variant));
g_dbus_connection_send_message (session_bus,
msg, 0,
NULL,
NULL);
g_object_unref (msg);
}
#define _SPAWN_FLAGS_DEFAULT (G_SPAWN_SEARCH_PATH)
static gboolean
g_desktop_app_info_launch_uris_with_spawn (GDesktopAppInfo *info,
GDBusConnection *session_bus,
const gchar *exec_line,
GList *uris,
GAppLaunchContext *launch_context,
GSpawnFlags spawn_flags,
GSpawnChildSetupFunc user_setup,
gpointer user_setup_data,
GDesktopAppLaunchCallback pid_callback,
gpointer pid_callback_data,
GError **error)
{
gboolean completed = FALSE;
GList *old_uris;
char **argv, **envp;
int argc;
ChildSetupData data;
g_return_val_if_fail (info != NULL, FALSE);
argv = NULL;
if (launch_context)
envp = g_app_launch_context_get_environment (launch_context);
else
envp = g_get_environ ();
do
{
GPid pid;
GList *launched_uris;
GList *iter;
char *display, *sn_id = NULL;
old_uris = uris;
if (!expand_application_parameters (info, exec_line, &uris, &argc, &argv, error))
goto out;
/* Get the subset of URIs we're launching with this process */
launched_uris = NULL;
for (iter = old_uris; iter != NULL && iter != uris; iter = iter->next)
launched_uris = g_list_prepend (launched_uris, iter->data);
launched_uris = g_list_reverse (launched_uris);
if (info->terminal && !prepend_terminal_to_vector (&argc, &argv))
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
_("Unable to find terminal required for application"));
goto out;
}
data.user_setup = user_setup;
data.user_setup_data = user_setup_data;
if (info->filename)
{
envp = g_environ_setenv (envp,
"GIO_LAUNCHED_DESKTOP_FILE",
info->filename,
TRUE);
envp = g_environ_setenv (envp,
"GIO_LAUNCHED_DESKTOP_FILE_PID",
"XXXXXXXXXXXXXXXXXXXX", /* filled in child_setup */
TRUE);
data.pid_envvar = (char *)g_environ_getenv (envp, "GIO_LAUNCHED_DESKTOP_FILE_PID");
}
else
{
data.pid_envvar = NULL;
}
display = NULL;
sn_id = NULL;
if (launch_context)
{
GList *launched_files = create_files_for_uris (launched_uris);
display = g_app_launch_context_get_display (launch_context,
G_APP_INFO (info),
launched_files);
if (display)
envp = g_environ_setenv (envp, "DISPLAY", display, TRUE);
if (info->startup_notify)
{
sn_id = g_app_launch_context_get_startup_notify_id (launch_context,
G_APP_INFO (info),
launched_files);
if (sn_id)
envp = g_environ_setenv (envp, "DESKTOP_STARTUP_ID", sn_id, TRUE);
}
g_list_free_full (launched_files, g_object_unref);
}
if (!g_spawn_async (info->path,
argv,
envp,
spawn_flags,
child_setup,
&data,
&pid,
error))
{
if (sn_id)
g_app_launch_context_launch_failed (launch_context, sn_id);
g_free (display);
g_free (sn_id);
g_list_free (launched_uris);
goto out;
}
if (pid_callback != NULL)
pid_callback (info, pid, pid_callback_data);
if (launch_context != NULL)
{
GVariantBuilder builder;
GVariant *platform_data;
g_variant_builder_init (&builder, G_VARIANT_TYPE_ARRAY);
g_variant_builder_add (&builder, "{sv}", "pid", g_variant_new_int32 (pid));
if (sn_id)
g_variant_builder_add (&builder, "{sv}", "startup-notification-id", g_variant_new_string (sn_id));
platform_data = g_variant_ref_sink (g_variant_builder_end (&builder));
g_signal_emit_by_name (launch_context, "launched", info, platform_data);
g_variant_unref (platform_data);
}
notify_desktop_launch (session_bus,
info,
pid,
display,
sn_id,
launched_uris);
g_free (display);
g_free (sn_id);
g_list_free (launched_uris);
g_strfreev (argv);
argv = NULL;
}
while (uris != NULL);
completed = TRUE;
out:
g_strfreev (argv);
g_strfreev (envp);
return completed;
}
static gchar *
object_path_from_appid (const gchar *app_id)
{
gchar *path;
gint i, n;
n = strlen (app_id);
path = g_malloc (n + 2);
path[0] = '/';
for (i = 0; i < n; i++)
if (app_id[i] != '.')
path[i + 1] = app_id[i];
else
path[i + 1] = '/';
path[i + 1] = '\0';
return path;
}
static GVariant *
g_desktop_app_info_make_platform_data (GDesktopAppInfo *info,
GList *uris,
GAppLaunchContext *launch_context)
{
GVariantBuilder builder;
g_variant_builder_init (&builder, G_VARIANT_TYPE_VARDICT);
if (launch_context)
{
GList *launched_files = create_files_for_uris (uris);
if (info->startup_notify)
{
gchar *sn_id;
sn_id = g_app_launch_context_get_startup_notify_id (launch_context, G_APP_INFO (info), launched_files);
if (sn_id)
g_variant_builder_add (&builder, "{sv}", "desktop-startup-id", g_variant_new_take_string (sn_id));
}
g_list_free_full (launched_files, g_object_unref);
}
return g_variant_builder_end (&builder);
}
static gboolean
g_desktop_app_info_launch_uris_with_dbus (GDesktopAppInfo *info,
GDBusConnection *session_bus,
GList *uris,
GAppLaunchContext *launch_context)
{
GVariantBuilder builder;
gchar *object_path;
g_return_val_if_fail (info != NULL, FALSE);
g_variant_builder_init (&builder, G_VARIANT_TYPE_TUPLE);
if (uris)
{
GList *iter;
g_variant_builder_open (&builder, G_VARIANT_TYPE_STRING_ARRAY);
for (iter = uris; iter; iter = iter->next)
g_variant_builder_add (&builder, "s", iter->data);
g_variant_builder_close (&builder);
}
g_variant_builder_add_value (&builder, g_desktop_app_info_make_platform_data (info, uris, launch_context));
/* This is non-blocking API. Similar to launching via fork()/exec()
* we don't wait around to see if the program crashed during startup.
* This is what startup-notification's job is...
*/
object_path = object_path_from_appid (info->app_id);
g_dbus_connection_call (session_bus, info->app_id, object_path, "org.freedesktop.Application",
uris ? "Open" : "Activate", g_variant_builder_end (&builder),
NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
g_free (object_path);
return TRUE;
}
static gboolean
g_desktop_app_info_launch_uris_internal (GAppInfo *appinfo,
GList *uris,
GAppLaunchContext *launch_context,
GSpawnFlags spawn_flags,
GSpawnChildSetupFunc user_setup,
gpointer user_setup_data,
GDesktopAppLaunchCallback pid_callback,
gpointer pid_callback_data,
GError **error)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
GDBusConnection *session_bus;
gboolean success = TRUE;
session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
if (session_bus && info->app_id)
g_desktop_app_info_launch_uris_with_dbus (info, session_bus, uris, launch_context);
else
success = g_desktop_app_info_launch_uris_with_spawn (info, session_bus, info->exec, uris, launch_context,
spawn_flags, user_setup, user_setup_data,
pid_callback, pid_callback_data, error);
if (session_bus != NULL)
{
/* This asynchronous flush holds a reference until it completes,
* which ensures that the following unref won't immediately kill
* the connection if we were the initial owner.
*/
g_dbus_connection_flush (session_bus, NULL, NULL, NULL);
g_object_unref (session_bus);
}
return success;
}
static gboolean
g_desktop_app_info_launch_uris (GAppInfo *appinfo,
GList *uris,
GAppLaunchContext *launch_context,
GError **error)
{
return g_desktop_app_info_launch_uris_internal (appinfo, uris,
launch_context,
_SPAWN_FLAGS_DEFAULT,
NULL, NULL, NULL, NULL,
error);
}
static gboolean
g_desktop_app_info_supports_uris (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->exec &&
((strstr (info->exec, "%u") != NULL) ||
(strstr (info->exec, "%U") != NULL));
}
static gboolean
g_desktop_app_info_supports_files (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->exec &&
((strstr (info->exec, "%f") != NULL) ||
(strstr (info->exec, "%F") != NULL));
}
static gboolean
g_desktop_app_info_launch (GAppInfo *appinfo,
GList *files,
GAppLaunchContext *launch_context,
GError **error)
{
GList *uris;
char *uri;
gboolean res;
uris = NULL;
while (files)
{
uri = g_file_get_uri (files->data);
uris = g_list_prepend (uris, uri);
files = files->next;
}
uris = g_list_reverse (uris);
res = g_desktop_app_info_launch_uris (appinfo, uris, launch_context, error);
g_list_free_full (uris, g_free);
return res;
}
/**
* g_desktop_app_info_launch_uris_as_manager:
* @appinfo: a #GDesktopAppInfo
* @uris: (element-type utf8): List of URIs
* @launch_context: (allow-none): a #GAppLaunchContext
* @spawn_flags: #GSpawnFlags, used for each process
* @user_setup: (scope call) (allow-none): a #GSpawnChildSetupFunc, used once
* for each process.
* @user_setup_data: (closure user_setup) (allow-none): User data for @user_setup
* @pid_callback: (scope call) (allow-none): Callback for child processes
* @pid_callback_data: (closure pid_callback) (allow-none): User data for @callback
* @error: return location for a #GError, or %NULL
*
* This function performs the equivalent of g_app_info_launch_uris(),
* but is intended primarily for operating system components that
* launch applications. Ordinary applications should use
* g_app_info_launch_uris().
*
* If the application is launched via traditional UNIX fork()/exec()
* then @spawn_flags, @user_setup and @user_setup_data are used for the
* call to g_spawn_async(). Additionally, @pid_callback (with
* @pid_callback_data) will be called to inform about the PID of the
* created process.
*
* If application launching occurs via some other mechanism (eg: D-Bus
* activation) then @spawn_flags, @user_setup, @user_setup_data,
* @pid_callback and @pid_callback_data are ignored.
*
* Returns: %TRUE on successful launch, %FALSE otherwise.
*/
gboolean
g_desktop_app_info_launch_uris_as_manager (GDesktopAppInfo *appinfo,
GList *uris,
GAppLaunchContext *launch_context,
GSpawnFlags spawn_flags,
GSpawnChildSetupFunc user_setup,
gpointer user_setup_data,
GDesktopAppLaunchCallback pid_callback,
gpointer pid_callback_data,
GError **error)
{
return g_desktop_app_info_launch_uris_internal ((GAppInfo*)appinfo,
uris,
launch_context,
spawn_flags,
user_setup,
user_setup_data,
pid_callback,
pid_callback_data,
error);
}
/* OnlyShowIn API support {{{2 */
/**
* g_desktop_app_info_set_desktop_env:
* @desktop_env: a string specifying what desktop this is
*
* Sets the name of the desktop that the application is running in.
* This is used by g_app_info_should_show() and
* g_desktop_app_info_get_show_in() to evaluate the
* `OnlyShowIn` and `NotShowIn`
* desktop entry fields.
*
* Should be called only once; subsequent calls are ignored.
*
* Deprecated:2.42:do not use this API. Since 2.42 the value of the
* `XDG_CURRENT_DESKTOP` environment variable will be used.
*/
void
g_desktop_app_info_set_desktop_env (const gchar *desktop_env)
{
get_current_desktops (desktop_env);
}
static gboolean
g_desktop_app_info_should_show (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (info->nodisplay)
return FALSE;
return g_desktop_app_info_get_show_in (info, NULL);
}
/* mime types/default apps support {{{2 */
typedef enum {
CONF_DIR,
APP_DIR,
MIMETYPE_DIR
} DirType;
static char *
ensure_dir (DirType type,
GError **error)
{
char *path, *display_name;
int errsv;
switch (type)
{
case CONF_DIR:
path = g_build_filename (g_get_user_config_dir (), NULL);
break;
case APP_DIR:
path = g_build_filename (g_get_user_data_dir (), "applications", NULL);
break;
case MIMETYPE_DIR:
path = g_build_filename (g_get_user_data_dir (), "mime", "packages", NULL);
break;
default:
g_assert_not_reached ();
}
errno = 0;
if (g_mkdir_with_parents (path, 0700) == 0)
return path;
errsv = errno;
display_name = g_filename_display_name (path);
if (type == APP_DIR)
g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv),
_("Can't create user application configuration folder %s: %s"),
display_name, g_strerror (errsv));
else
g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv),
_("Can't create user MIME configuration folder %s: %s"),
display_name, g_strerror (errsv));
g_free (display_name);
g_free (path);
return NULL;
}
static gboolean
update_mimeapps_list (const char *desktop_id,
const char *content_type,
UpdateMimeFlags flags,
GError **error)
{
char *dirname, *filename, *string;
GKeyFile *key_file;
gboolean load_succeeded, res;
char **old_list, **list;
gsize length, data_size;
char *data;
int i, j, k;
char **content_types;
/* Don't add both at start and end */
g_assert (!((flags & UPDATE_MIME_SET_DEFAULT) &&
(flags & UPDATE_MIME_SET_NON_DEFAULT)));
dirname = ensure_dir (CONF_DIR, error);
if (!dirname)
return FALSE;
filename = g_build_filename (dirname, "mimeapps.list", NULL);
g_free (dirname);
key_file = g_key_file_new ();
load_succeeded = g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, NULL);
if (!load_succeeded ||
(!g_key_file_has_group (key_file, ADDED_ASSOCIATIONS_GROUP) &&
!g_key_file_has_group (key_file, REMOVED_ASSOCIATIONS_GROUP) &&
!g_key_file_has_group (key_file, DEFAULT_APPLICATIONS_GROUP)))
{
g_key_file_free (key_file);
key_file = g_key_file_new ();
}
if (content_type)
{
content_types = g_new (char *, 2);
content_types[0] = g_strdup (content_type);
content_types[1] = NULL;
}
else
{
content_types = g_key_file_get_keys (key_file, DEFAULT_APPLICATIONS_GROUP, NULL, NULL);
}
for (k = 0; content_types && content_types[k]; k++)
{
/* set as default, if requested so */
string = g_key_file_get_string (key_file,
DEFAULT_APPLICATIONS_GROUP,
content_types[k],
NULL);
if (g_strcmp0 (string, desktop_id) != 0 &&
(flags & UPDATE_MIME_SET_DEFAULT))
{
g_free (string);
string = g_strdup (desktop_id);
/* add in the non-default list too, if it's not already there */
flags |= UPDATE_MIME_SET_NON_DEFAULT;
}
if (string == NULL || desktop_id == NULL)
g_key_file_remove_key (key_file,
DEFAULT_APPLICATIONS_GROUP,
content_types[k],
NULL);
else
g_key_file_set_string (key_file,
DEFAULT_APPLICATIONS_GROUP,
content_types[k],
string);
g_free (string);
}
if (content_type)
{
/* reuse the list from above */
}
else
{
g_strfreev (content_types);
content_types = g_key_file_get_keys (key_file, ADDED_ASSOCIATIONS_GROUP, NULL, NULL);
}
for (k = 0; content_types && content_types[k]; k++)
{
/* Add to the right place in the list */
length = 0;
old_list = g_key_file_get_string_list (key_file, ADDED_ASSOCIATIONS_GROUP,
content_types[k], &length, NULL);
list = g_new (char *, 1 + length + 1);
i = 0;
/* if we're adding a last-used hint, just put the application in front of the list */
if (flags & UPDATE_MIME_SET_LAST_USED)
{
/* avoid adding this again as non-default later */
if (flags & UPDATE_MIME_SET_NON_DEFAULT)
flags ^= UPDATE_MIME_SET_NON_DEFAULT;
list[i++] = g_strdup (desktop_id);
}
if (old_list)
{
for (j = 0; old_list[j] != NULL; j++)
{
if (g_strcmp0 (old_list[j], desktop_id) != 0)
{
/* rewrite other entries if they're different from the new one */
list[i++] = g_strdup (old_list[j]);
}
else if (flags & UPDATE_MIME_SET_NON_DEFAULT)
{
/* we encountered an old entry which is equal to the one we're adding as non-default,
* don't change its position in the list.
*/
flags ^= UPDATE_MIME_SET_NON_DEFAULT;
list[i++] = g_strdup (old_list[j]);
}
}
}
/* add it at the end of the list */
if (flags & UPDATE_MIME_SET_NON_DEFAULT)
list[i++] = g_strdup (desktop_id);
list[i] = NULL;
g_strfreev (old_list);
if (list[0] == NULL || desktop_id == NULL)
g_key_file_remove_key (key_file,
ADDED_ASSOCIATIONS_GROUP,
content_types[k],
NULL);
else
g_key_file_set_string_list (key_file,
ADDED_ASSOCIATIONS_GROUP,
content_types[k],
(const char * const *)list, i);
g_strfreev (list);
}
if (content_type)
{
/* reuse the list from above */
}
else
{
g_strfreev (content_types);
content_types = g_key_file_get_keys (key_file, REMOVED_ASSOCIATIONS_GROUP, NULL, NULL);
}
for (k = 0; content_types && content_types[k]; k++)
{
/* Remove from removed associations group (unless remove) */
length = 0;
old_list = g_key_file_get_string_list (key_file, REMOVED_ASSOCIATIONS_GROUP,
content_types[k], &length, NULL);
list = g_new (char *, 1 + length + 1);
i = 0;
if (flags & UPDATE_MIME_REMOVE)
list[i++] = g_strdup (desktop_id);
if (old_list)
{
for (j = 0; old_list[j] != NULL; j++)
{
if (g_strcmp0 (old_list[j], desktop_id) != 0)
list[i++] = g_strdup (old_list[j]);
}
}
list[i] = NULL;
g_strfreev (old_list);
if (list[0] == NULL || desktop_id == NULL)
g_key_file_remove_key (key_file,
REMOVED_ASSOCIATIONS_GROUP,
content_types[k],
NULL);
else
g_key_file_set_string_list (key_file,
REMOVED_ASSOCIATIONS_GROUP,
content_types[k],
(const char * const *)list, i);
g_strfreev (list);
}
g_strfreev (content_types);
data = g_key_file_to_data (key_file, &data_size, error);
g_key_file_free (key_file);
res = g_file_set_contents (filename, data, data_size, error);
desktop_file_dirs_invalidate_user_config ();
g_free (filename);
g_free (data);
return res;
}
static gboolean
g_desktop_app_info_set_as_last_used_for_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (!g_desktop_app_info_ensure_saved (info, error))
return FALSE;
if (!info->desktop_id)
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
_("Application information lacks an identifier"));
return FALSE;
}
/* both add support for the content type and set as last used */
return update_mimeapps_list (info->desktop_id, content_type,
UPDATE_MIME_SET_NON_DEFAULT |
UPDATE_MIME_SET_LAST_USED,
error);
}
static gboolean
g_desktop_app_info_set_as_default_for_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (!g_desktop_app_info_ensure_saved (info, error))
return FALSE;
if (!info->desktop_id)
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
_("Application information lacks an identifier"));
return FALSE;
}
return update_mimeapps_list (info->desktop_id, content_type,
UPDATE_MIME_SET_DEFAULT,
error);
}
static void
update_program_done (GPid pid,
gint status,
gpointer data)
{
/* Did the application exit correctly */
if (g_spawn_check_exit_status (status, NULL))
{
/* Here we could clean out any caches in use */
}
}
static void
run_update_command (char *command,
char *subdir)
{
char *argv[3] = {
NULL,
NULL,
NULL,
};
GPid pid = 0;
GError *error = NULL;
argv[0] = command;
argv[1] = g_build_filename (g_get_user_data_dir (), subdir, NULL);
if (g_spawn_async ("/", argv,
NULL, /* envp */
G_SPAWN_SEARCH_PATH |
G_SPAWN_STDOUT_TO_DEV_NULL |
G_SPAWN_STDERR_TO_DEV_NULL |
G_SPAWN_DO_NOT_REAP_CHILD,
NULL, NULL, /* No setup function */
&pid,
&error))
g_child_watch_add (pid, update_program_done, NULL);
else
{
/* If we get an error at this point, it's quite likely the user doesn't
* have an installed copy of either 'update-mime-database' or
* 'update-desktop-database'. I don't think we want to popup an error
* dialog at this point, so we just do a g_warning to give the user a
* chance of debugging it.
*/
g_warning ("%s", error->message);
}
g_free (argv[1]);
}
static gboolean
g_desktop_app_info_set_as_default_for_extension (GAppInfo *appinfo,
const char *extension,
GError **error)
{
char *filename, *basename, *mimetype;
char *dirname;
gboolean res;
if (!g_desktop_app_info_ensure_saved (G_DESKTOP_APP_INFO (appinfo), error))
return FALSE;
dirname = ensure_dir (MIMETYPE_DIR, error);
if (!dirname)
return FALSE;
basename = g_strdup_printf ("user-extension-%s.xml", extension);
filename = g_build_filename (dirname, basename, NULL);
g_free (basename);
g_free (dirname);
mimetype = g_strdup_printf ("application/x-extension-%s", extension);
if (!g_file_test (filename, G_FILE_TEST_EXISTS))
{
char *contents;
contents =
g_strdup_printf ("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<mime-info xmlns=\"http://www.freedesktop.org/standards/shared-mime-info\">\n"
" <mime-type type=\"%s\">\n"
" <comment>%s document</comment>\n"
" <glob pattern=\"*.%s\"/>\n"
" </mime-type>\n"
"</mime-info>\n", mimetype, extension, extension);
g_file_set_contents (filename, contents, -1, NULL);
g_free (contents);
run_update_command ("update-mime-database", "mime");
}
g_free (filename);
res = g_desktop_app_info_set_as_default_for_type (appinfo,
mimetype,
error);
g_free (mimetype);
return res;
}
static gboolean
g_desktop_app_info_add_supports_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (!g_desktop_app_info_ensure_saved (G_DESKTOP_APP_INFO (info), error))
return FALSE;
return update_mimeapps_list (info->desktop_id, content_type,
UPDATE_MIME_SET_NON_DEFAULT,
error);
}
static gboolean
g_desktop_app_info_can_remove_supports_type (GAppInfo *appinfo)
{
return TRUE;
}
static gboolean
g_desktop_app_info_remove_supports_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (!g_desktop_app_info_ensure_saved (G_DESKTOP_APP_INFO (info), error))
return FALSE;
return update_mimeapps_list (info->desktop_id, content_type,
UPDATE_MIME_REMOVE,
error);
}
static const char **
g_desktop_app_info_get_supported_types (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return (const char**) info->mime_types;
}
/* Saving and deleting {{{2 */
static gboolean
g_desktop_app_info_ensure_saved (GDesktopAppInfo *info,
GError **error)
{
GKeyFile *key_file;
char *dirname;
char *filename;
char *data, *desktop_id;
gsize data_size;
int fd;
gboolean res;
if (info->filename != NULL)
return TRUE;
/* This is only used for object created with
* g_app_info_create_from_commandline. All other
* object should have a filename
*/
dirname = ensure_dir (APP_DIR, error);
if (!dirname)
return FALSE;
key_file = g_key_file_new ();
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
"Encoding", "UTF-8");
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_VERSION, "1.0");
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_TYPE,
G_KEY_FILE_DESKTOP_TYPE_APPLICATION);
if (info->terminal)
g_key_file_set_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_TERMINAL, TRUE);
if (info->nodisplay)
g_key_file_set_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY, TRUE);
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_EXEC, info->exec);
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_NAME, info->name);
if (info->generic_name != NULL)
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
GENERIC_NAME_KEY, info->generic_name);
if (info->fullname != NULL)
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
FULL_NAME_KEY, info->fullname);
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_COMMENT, info->comment);
g_key_file_set_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY, TRUE);
data = g_key_file_to_data (key_file, &data_size, NULL);
g_key_file_free (key_file);
desktop_id = g_strdup_printf ("userapp-%s-XXXXXX.desktop", info->name);
filename = g_build_filename (dirname, desktop_id, NULL);
g_free (desktop_id);
g_free (dirname);
fd = g_mkstemp (filename);
if (fd == -1)
{
char *display_name;
display_name = g_filename_display_name (filename);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
_("Can't create user desktop file %s"), display_name);
g_free (display_name);
g_free (filename);
g_free (data);
return FALSE;
}
desktop_id = g_path_get_basename (filename);
/* FIXME - actually handle error */
(void) g_close (fd, NULL);
res = g_file_set_contents (filename, data, data_size, error);
g_free (data);
if (!res)
{
g_free (desktop_id);
g_free (filename);
return FALSE;
}
info->filename = filename;
info->desktop_id = desktop_id;
run_update_command ("update-desktop-database", "applications");
/* We just dropped a file in the user's desktop file directory. Save
* the monitor the bother of having to notice it and invalidate
* immediately.
*
* This means that calls directly following this will be able to see
* the results immediately.
*/
desktop_file_dirs_invalidate_user_data ();
return TRUE;
}
static gboolean
g_desktop_app_info_can_delete (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (info->filename)
{
if (strstr (info->filename, "/userapp-"))
return g_access (info->filename, W_OK) == 0;
}
return FALSE;
}
static gboolean
g_desktop_app_info_delete (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (info->filename)
{
if (g_remove (info->filename) == 0)
{
update_mimeapps_list (info->desktop_id, NULL,
UPDATE_MIME_NONE,
NULL);
g_free (info->filename);
info->filename = NULL;
g_free (info->desktop_id);
info->desktop_id = NULL;
return TRUE;
}
}
return FALSE;
}
/* Create for commandline {{{2 */
/**
* g_app_info_create_from_commandline:
* @commandline: the commandline to use
* @application_name: (allow-none): the application name, or %NULL to use @commandline
* @flags: flags that can specify details of the created #GAppInfo
* @error: a #GError location to store the error occurring, %NULL to ignore.
*
* Creates a new #GAppInfo from the given information.
*
* Note that for @commandline, the quoting rules of the Exec key of the
* [freedesktop.org Desktop Entry Specification](http://freedesktop.org/Standards/desktop-entry-spec)
* are applied. For example, if the @commandline contains
* percent-encoded URIs, the percent-character must be doubled in order to prevent it from
* being swallowed by Exec key unquoting. See the specification for exact quoting rules.
*
* Returns: (transfer full): new #GAppInfo for given command.
**/
GAppInfo *
g_app_info_create_from_commandline (const char *commandline,
const char *application_name,
GAppInfoCreateFlags flags,
GError **error)
{
char **split;
char *basename;
GDesktopAppInfo *info;
g_return_val_if_fail (commandline, NULL);
info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL);
info->filename = NULL;
info->desktop_id = NULL;
info->terminal = (flags & G_APP_INFO_CREATE_NEEDS_TERMINAL) != 0;
info->startup_notify = (flags & G_APP_INFO_CREATE_SUPPORTS_STARTUP_NOTIFICATION) != 0;
info->hidden = FALSE;
if ((flags & G_APP_INFO_CREATE_SUPPORTS_URIS) != 0)
info->exec = g_strconcat (commandline, " %u", NULL);
else
info->exec = g_strconcat (commandline, " %f", NULL);
info->nodisplay = TRUE;
info->binary = binary_from_exec (info->exec);
if (application_name)
info->name = g_strdup (application_name);
else
{
/* FIXME: this should be more robust. Maybe g_shell_parse_argv and use argv[0] */
split = g_strsplit (commandline, " ", 2);
basename = split[0] ? g_path_get_basename (split[0]) : NULL;
g_strfreev (split);
info->name = basename;
if (info->name == NULL)
info->name = g_strdup ("custom");
}
info->comment = g_strdup_printf (_("Custom definition for %s"), info->name);
return G_APP_INFO (info);
}
/* GAppInfo interface init */
static void
g_desktop_app_info_iface_init (GAppInfoIface *iface)
{
iface->dup = g_desktop_app_info_dup;
iface->equal = g_desktop_app_info_equal;
iface->get_id = g_desktop_app_info_get_id;
iface->get_name = g_desktop_app_info_get_name;
iface->get_description = g_desktop_app_info_get_description;
iface->get_executable = g_desktop_app_info_get_executable;
iface->get_icon = g_desktop_app_info_get_icon;
iface->launch = g_desktop_app_info_launch;
iface->supports_uris = g_desktop_app_info_supports_uris;
iface->supports_files = g_desktop_app_info_supports_files;
iface->launch_uris = g_desktop_app_info_launch_uris;
iface->should_show = g_desktop_app_info_should_show;
iface->set_as_default_for_type = g_desktop_app_info_set_as_default_for_type;
iface->set_as_default_for_extension = g_desktop_app_info_set_as_default_for_extension;
iface->add_supports_type = g_desktop_app_info_add_supports_type;
iface->can_remove_supports_type = g_desktop_app_info_can_remove_supports_type;
iface->remove_supports_type = g_desktop_app_info_remove_supports_type;
iface->can_delete = g_desktop_app_info_can_delete;
iface->do_delete = g_desktop_app_info_delete;
iface->get_commandline = g_desktop_app_info_get_commandline;
iface->get_display_name = g_desktop_app_info_get_display_name;
iface->set_as_last_used_for_type = g_desktop_app_info_set_as_last_used_for_type;
iface->get_supported_types = g_desktop_app_info_get_supported_types;
}
/* Recommended applications {{{2 */
/* Converts content_type into a list of itself with all of its parent
* types (if include_fallback is enabled) or just returns a single-item
* list with the unaliased content type.
*/
static gchar **
get_list_of_mimetypes (const gchar *content_type,
gboolean include_fallback)
{
gchar *unaliased;
GPtrArray *array;
array = g_ptr_array_new ();
unaliased = _g_unix_content_type_unalias (content_type);
g_ptr_array_add (array, unaliased);
if (include_fallback)
{
gint i;
/* Iterate the array as we grow it, until we have nothing more to add */
for (i = 0; i < array->len; i++)
{
gchar **parents = _g_unix_content_type_get_parents (g_ptr_array_index (array, i));
gint j;
for (j = 0; parents[j]; j++)
/* Don't add duplicates */
if (!array_contains (array, parents[j]))
g_ptr_array_add (array, parents[j]);
else
g_free (parents[j]);
/* We already stole or freed each element. Free the container. */
g_free (parents);
}
}
g_ptr_array_add (array, NULL);
return (gchar **) g_ptr_array_free (array, FALSE);
}
static gchar **
g_desktop_app_info_get_desktop_ids_for_content_type (const gchar *content_type,
gboolean include_fallback)
{
GPtrArray *hits, *blacklist;
gchar **types;
gint i, j;
hits = g_ptr_array_new ();
blacklist = g_ptr_array_new ();
types = get_list_of_mimetypes (content_type, include_fallback);
desktop_file_dirs_lock ();
for (i = 0; types[i]; i++)
for (j = 0; j < n_desktop_file_dirs; j++)
desktop_file_dir_mime_lookup (&desktop_file_dirs[j], types[i], hits, blacklist);
desktop_file_dirs_unlock ();
g_ptr_array_add (hits, NULL);
g_ptr_array_free (blacklist, TRUE);
g_strfreev (types);
return (gchar **) g_ptr_array_free (hits, FALSE);
}
static gchar **
g_desktop_app_info_get_defaults_for_content_type (const gchar *content_type)
{
GPtrArray *results;
gchar **types;
gint i, j;
types = get_list_of_mimetypes (content_type, TRUE);
results = g_ptr_array_new ();
desktop_file_dirs_lock ();
for (i = 0; types[i]; i++)
for (j = 0; j < n_desktop_file_dirs; j++)
desktop_file_dir_default_lookup (&desktop_file_dirs[j], types[i], results);
desktop_file_dirs_unlock ();
g_ptr_array_add (results, NULL);
g_strfreev (types);
return (gchar **) g_ptr_array_free (results, FALSE);
}
/**
* g_app_info_get_recommended_for_type:
* @content_type: the content type to find a #GAppInfo for
*
* Gets a list of recommended #GAppInfos for a given content type, i.e.
* those applications which claim to support the given content type exactly,
* and not by MIME type subclassing.
* Note that the first application of the list is the last used one, i.e.
* the last one for which g_app_info_set_as_last_used_for_type() has been
* called.
*
* Returns: (element-type GAppInfo) (transfer full): #GList of #GAppInfos
* for given @content_type or %NULL on error.
*
* Since: 2.28
**/
GList *
g_app_info_get_recommended_for_type (const gchar *content_type)
{
gchar **desktop_ids;
GList *infos;
gint i;
g_return_val_if_fail (content_type != NULL, NULL);
desktop_ids = g_desktop_app_info_get_desktop_ids_for_content_type (content_type, FALSE);
infos = NULL;
for (i = 0; desktop_ids[i]; i++)
{
GDesktopAppInfo *info;
info = g_desktop_app_info_new (desktop_ids[i]);
if (info)
infos = g_list_prepend (infos, info);
}
g_strfreev (desktop_ids);
return g_list_reverse (infos);
}
/**
* g_app_info_get_fallback_for_type:
* @content_type: the content type to find a #GAppInfo for
*
* Gets a list of fallback #GAppInfos for a given content type, i.e.
* those applications which claim to support the given content type
* by MIME type subclassing and not directly.
*
* Returns: (element-type GAppInfo) (transfer full): #GList of #GAppInfos
* for given @content_type or %NULL on error.
*
* Since: 2.28
**/
GList *
g_app_info_get_fallback_for_type (const gchar *content_type)
{
gchar **recommended_ids;
gchar **all_ids;
GList *infos;
gint i;
g_return_val_if_fail (content_type != NULL, NULL);
recommended_ids = g_desktop_app_info_get_desktop_ids_for_content_type (content_type, FALSE);
all_ids = g_desktop_app_info_get_desktop_ids_for_content_type (content_type, TRUE);
infos = NULL;
for (i = 0; all_ids[i]; i++)
{
GDesktopAppInfo *info;
gint j;
/* Don't return the ones on the recommended list */
for (j = 0; recommended_ids[j]; j++)
if (g_str_equal (all_ids[i], recommended_ids[j]))
break;
if (recommended_ids[j])
continue;
info = g_desktop_app_info_new (all_ids[i]);
if (info)
infos = g_list_prepend (infos, info);
}
g_strfreev (recommended_ids);
g_strfreev (all_ids);
return g_list_reverse (infos);
}
/**
* g_app_info_get_all_for_type:
* @content_type: the content type to find a #GAppInfo for
*
* Gets a list of all #GAppInfos for a given content type,
* including the recommended and fallback #GAppInfos. See
* g_app_info_get_recommended_for_type() and
* g_app_info_get_fallback_for_type().
*
* Returns: (element-type GAppInfo) (transfer full): #GList of #GAppInfos
* for given @content_type or %NULL on error.
**/
GList *
g_app_info_get_all_for_type (const char *content_type)
{
gchar **desktop_ids;
GList *infos;
gint i;
g_return_val_if_fail (content_type != NULL, NULL);
desktop_ids = g_desktop_app_info_get_desktop_ids_for_content_type (content_type, TRUE);
infos = NULL;
for (i = 0; desktop_ids[i]; i++)
{
GDesktopAppInfo *info;
info = g_desktop_app_info_new (desktop_ids[i]);
if (info)
infos = g_list_prepend (infos, info);
}
g_strfreev (desktop_ids);
return g_list_reverse (infos);
}
/**
* g_app_info_reset_type_associations:
* @content_type: a content type
*
* Removes all changes to the type associations done by
* g_app_info_set_as_default_for_type(),
* g_app_info_set_as_default_for_extension(),
* g_app_info_add_supports_type() or
* g_app_info_remove_supports_type().
*
* Since: 2.20
*/
void
g_app_info_reset_type_associations (const char *content_type)
{
update_mimeapps_list (NULL, content_type,
UPDATE_MIME_NONE,
NULL);
}
/**
* g_app_info_get_default_for_type:
* @content_type: the content type to find a #GAppInfo for
* @must_support_uris: if %TRUE, the #GAppInfo is expected to
* support URIs
*
* Gets the default #GAppInfo for a given content type.
*
* Returns: (transfer full): #GAppInfo for given @content_type or
* %NULL on error.
*/
GAppInfo *
g_app_info_get_default_for_type (const char *content_type,
gboolean must_support_uris)
{
gchar **desktop_ids;
GAppInfo *info;
gint i;
g_return_val_if_fail (content_type != NULL, NULL);
desktop_ids = g_desktop_app_info_get_defaults_for_content_type (content_type);
info = NULL;
for (i = 0; desktop_ids[i]; i++)
{
info = (GAppInfo *) g_desktop_app_info_new (desktop_ids[i]);
if (info)
{
if (!must_support_uris || g_app_info_supports_uris (info))
break;
g_object_unref (info);
info = NULL;
}
}
g_strfreev (desktop_ids);
/* If we can't find a default app for this content type, pick one from
* the list of all supported apps. This will be ordered by the user's
* preference and by "recommended" apps first, so the first one we
* find is probably the best fallback.
*/
if (info == NULL)
{
desktop_ids = g_desktop_app_info_get_desktop_ids_for_content_type (content_type, TRUE);
for (i = 0; desktop_ids[i]; i++)
{
info = (GAppInfo *) g_desktop_app_info_new (desktop_ids[i]);
if (info)
{
if (!must_support_uris || g_app_info_supports_uris (info))
break;
g_object_unref (info);
info = NULL;
}
}
g_strfreev (desktop_ids);
}
return info;
}
/**
* g_app_info_get_default_for_uri_scheme:
* @uri_scheme: a string containing a URI scheme.
*
* Gets the default application for handling URIs with
* the given URI scheme. A URI scheme is the initial part
* of the URI, up to but not including the ':', e.g. "http",
* "ftp" or "sip".
*
* Returns: (transfer full): #GAppInfo for given @uri_scheme or %NULL on error.
*/
GAppInfo *
g_app_info_get_default_for_uri_scheme (const char *uri_scheme)
{
GAppInfo *app_info;
char *content_type, *scheme_down;
scheme_down = g_ascii_strdown (uri_scheme, -1);
content_type = g_strdup_printf ("x-scheme-handler/%s", scheme_down);
g_free (scheme_down);
app_info = g_app_info_get_default_for_type (content_type, FALSE);
g_free (content_type);
return app_info;
}
/* "Get all" API {{{2 */
/**
* g_desktop_app_info_get_implementations:
* @interface: the name of the interface
*
* Gets all applications that implement @interface.
*
* An application implements an interface if that interface is listed in
* the Implements= line of the desktop file of the application.
*
* Since: 2.42
**/
GList *
g_desktop_app_info_get_implementations (const gchar *interface)
{
GList *result = NULL;
GList **ptr;
gint i;
desktop_file_dirs_lock ();
for (i = 0; i < n_desktop_file_dirs; i++)
desktop_file_dir_get_implementations (&desktop_file_dirs[i], &result, interface);
desktop_file_dirs_unlock ();
ptr = &result;
while (*ptr)
{
gchar *name = (*ptr)->data;
GDesktopAppInfo *app;
app = g_desktop_app_info_new (name);
g_free (name);
if (app)
{
(*ptr)->data = app;
ptr = &(*ptr)->next;
}
else
*ptr = g_list_delete_link (*ptr, *ptr);
}
return result;
}
/**
* g_desktop_app_info_search:
* @search_string: the search string to use
*
* Searches desktop files for ones that match @search_string.
*
* The return value is an array of strvs. Each strv contains a list of
* applications that matched @search_string with an equal score. The
* outer list is sorted by score so that the first strv contains the
* best-matching applications, and so on.
* The algorithm for determining matches is undefined and may change at
* any time.
*
* Returns: (array zero-terminated=1) (element-type GStrv) (transfer full): a
* list of strvs. Free each item with g_strfreev() and free the outer
* list with g_free().
*/
gchar ***
g_desktop_app_info_search (const gchar *search_string)
{
gchar **search_tokens;
gint last_category = -1;
gchar ***results;
gint n_categories = 0;
gint start_of_category;
gint i, j;
search_tokens = g_str_tokenize_and_fold (search_string, NULL, NULL);
desktop_file_dirs_lock ();
reset_total_search_results ();
for (i = 0; i < n_desktop_file_dirs; i++)
{
for (j = 0; search_tokens[j]; j++)
{
desktop_file_dir_search (&desktop_file_dirs[i], search_tokens[j]);
merge_token_results (j == 0);
}
merge_directory_results ();
}
sort_total_search_results ();
/* Count the total number of unique categories */
for (i = 0; i < static_total_results_size; i++)
if (static_total_results[i].category != last_category)
{
last_category = static_total_results[i].category;
n_categories++;
}
results = g_new (gchar **, n_categories + 1);
/* Start loading into the results list */
start_of_category = 0;
for (i = 0; i < n_categories; i++)
{
gint n_items_in_category = 0;
gint this_category;
gint j;
this_category = static_total_results[start_of_category].category;
while (start_of_category + n_items_in_category < static_total_results_size &&
static_total_results[start_of_category + n_items_in_category].category == this_category)
n_items_in_category++;
results[i] = g_new (gchar *, n_items_in_category + 1);
for (j = 0; j < n_items_in_category; j++)
results[i][j] = g_strdup (static_total_results[start_of_category + j].app_name);
results[i][j] = NULL;
start_of_category += n_items_in_category;
}
results[i] = NULL;
desktop_file_dirs_unlock ();
g_strfreev (search_tokens);
return results;
}
/**
* g_app_info_get_all:
*
* Gets a list of all of the applications currently registered
* on this system.
*
* For desktop files, this includes applications that have
* `NoDisplay=true` set or are excluded from display by means
* of `OnlyShowIn` or `NotShowIn`. See g_app_info_should_show().
* The returned list does not include applications which have
* the `Hidden` key set.
*
* Returns: (element-type GAppInfo) (transfer full): a newly allocated #GList of references to #GAppInfos.
**/
GList *
g_app_info_get_all (void)
{
GHashTable *apps;
GHashTableIter iter;
gpointer value;
int i;
GList *infos;
apps = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
desktop_file_dirs_lock ();
for (i = 0; i < n_desktop_file_dirs; i++)
desktop_file_dir_get_all (&desktop_file_dirs[i], apps);
desktop_file_dirs_unlock ();
infos = NULL;
g_hash_table_iter_init (&iter, apps);
while (g_hash_table_iter_next (&iter, NULL, &value))
{
if (value)
infos = g_list_prepend (infos, value);
}
g_hash_table_destroy (apps);
return infos;
}
/* GDesktopAppInfoLookup interface {{{2 */
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
typedef GDesktopAppInfoLookupIface GDesktopAppInfoLookupInterface;
G_DEFINE_INTERFACE (GDesktopAppInfoLookup, g_desktop_app_info_lookup, G_TYPE_OBJECT)
static void
g_desktop_app_info_lookup_default_init (GDesktopAppInfoLookupInterface *iface)
{
}
/* "Get for mime type" APIs {{{2 */
/**
* g_desktop_app_info_lookup_get_default_for_uri_scheme:
* @lookup: a #GDesktopAppInfoLookup
* @uri_scheme: a string containing a URI scheme.
*
* Gets the default application for launching applications
* using this URI scheme for a particular GDesktopAppInfoLookup
* implementation.
*
* The GDesktopAppInfoLookup interface and this function is used
* to implement g_app_info_get_default_for_uri_scheme() backends
* in a GIO module. There is no reason for applications to use it
* directly. Applications should use g_app_info_get_default_for_uri_scheme().
*
* Returns: (transfer full): #GAppInfo for given @uri_scheme or %NULL on error.
*
* Deprecated: The #GDesktopAppInfoLookup interface is deprecated and unused by gio.
*/
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), NULL);
iface = G_DESKTOP_APP_INFO_LOOKUP_GET_IFACE (lookup);
return (* iface->get_default_for_uri_scheme) (lookup, uri_scheme);
}
G_GNUC_END_IGNORE_DEPRECATIONS
/* Misc getter APIs {{{2 */
/**
* g_desktop_app_info_get_startup_wm_class:
* @info: a #GDesktopAppInfo that supports startup notify
*
* Retrieves the StartupWMClass field from @info. This represents the
* WM_CLASS property of the main window of the application, if launched
* through @info.
*
* Returns: (transfer none): the startup WM class, or %NULL if none is set
* in the desktop file.
*
* Since: 2.34
*/
const char *
g_desktop_app_info_get_startup_wm_class (GDesktopAppInfo *info)
{
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), NULL);
return info->startup_wm_class;
}
/**
* g_desktop_app_info_get_string:
* @info: a #GDesktopAppInfo
* @key: the key to look up
*
* Looks up a string value in the keyfile backing @info.
*
* The @key is looked up in the "Desktop Entry" group.
*
* Returns: a newly allocated string, or %NULL if the key
* is not found
*
* Since: 2.36
*/
char *
g_desktop_app_info_get_string (GDesktopAppInfo *info,
const char *key)
{
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), NULL);
return g_key_file_get_string (info->keyfile,
G_KEY_FILE_DESKTOP_GROUP, key, NULL);
}
/**
* g_desktop_app_info_get_boolean:
* @info: a #GDesktopAppInfo
* @key: the key to look up
*
* Looks up a boolean value in the keyfile backing @info.
*
* The @key is looked up in the "Desktop Entry" group.
*
* Returns: the boolean value, or %FALSE if the key
* is not found
*
* Since: 2.36
*/
gboolean
g_desktop_app_info_get_boolean (GDesktopAppInfo *info,
const char *key)
{
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), FALSE);
return g_key_file_get_boolean (info->keyfile,
G_KEY_FILE_DESKTOP_GROUP, key, NULL);
}
/**
* g_desktop_app_info_has_key:
* @info: a #GDesktopAppInfo
* @key: the key to look up
*
* Returns whether @key exists in the "Desktop Entry" group
* of the keyfile backing @info.
*
* Returns: %TRUE if the @key exists
*
* Since: 2.36
*/
gboolean
g_desktop_app_info_has_key (GDesktopAppInfo *info,
const char *key)
{
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), FALSE);
return g_key_file_has_key (info->keyfile,
G_KEY_FILE_DESKTOP_GROUP, key, NULL);
}
/* Desktop actions support {{{2 */
/**
* g_desktop_app_info_list_actions:
* @info: a #GDesktopAppInfo
*
* Returns the list of "additional application actions" supported on the
* desktop file, as per the desktop file specification.
*
* As per the specification, this is the list of actions that are
* explicitly listed in the "Actions" key of the [Desktop Entry] group.
*
* Returns: (array zero-terminated=1) (element-type utf8) (transfer none): a list of strings, always non-%NULL
*
* Since: 2.38
**/
const gchar * const *
g_desktop_app_info_list_actions (GDesktopAppInfo *info)
{
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), NULL);
return (const gchar **) info->actions;
}
static gboolean
app_info_has_action (GDesktopAppInfo *info,
const gchar *action_name)
{
gint i;
for (i = 0; info->actions[i]; i++)
if (g_str_equal (info->actions[i], action_name))
return TRUE;
return FALSE;
}
/**
* g_desktop_app_info_get_action_name:
* @info: a #GDesktopAppInfo
* @action_name: the name of the action as from
* g_desktop_app_info_list_actions()
*
* Gets the user-visible display name of the "additional application
* action" specified by @action_name.
*
* This corresponds to the "Name" key within the keyfile group for the
* action.
*
* Returns: (transfer full): the locale-specific action name
*
* Since: 2.38
*/
gchar *
g_desktop_app_info_get_action_name (GDesktopAppInfo *info,
const gchar *action_name)
{
gchar *group_name;
gchar *result;
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), NULL);
g_return_val_if_fail (action_name != NULL, NULL);
g_return_val_if_fail (app_info_has_action (info, action_name), NULL);
group_name = g_strdup_printf ("Desktop Action %s", action_name);
result = g_key_file_get_locale_string (info->keyfile, group_name, "Name", NULL, NULL);
g_free (group_name);
/* The spec says that the Name field must be given.
*
* If it's not, let's follow the behaviour of our get_name()
* implementation above and never return %NULL.
*/
if (result == NULL)
result = g_strdup (_("Unnamed"));
return result;
}
/**
* g_desktop_app_info_launch_action:
* @info: a #GDesktopAppInfo
* @action_name: the name of the action as from
* g_desktop_app_info_list_actions()
* @launch_context: (allow-none): a #GAppLaunchContext
*
* Activates the named application action.
*
* You may only call this function on action names that were
* returned from g_desktop_app_info_list_actions().
*
* Note that if the main entry of the desktop file indicates that the
* application supports startup notification, and @launch_context is
* non-%NULL, then startup notification will be used when activating the
* action (and as such, invocation of the action on the receiving side
* must signal the end of startup notification when it is completed).
* This is the expected behaviour of applications declaring additional
* actions, as per the desktop file specification.
*
* As with g_app_info_launch() there is no way to detect failures that
* occur while using this function.
*
* Since: 2.38
*/
void
g_desktop_app_info_launch_action (GDesktopAppInfo *info,
const gchar *action_name,
GAppLaunchContext *launch_context)
{
GDBusConnection *session_bus;
g_return_if_fail (G_IS_DESKTOP_APP_INFO (info));
g_return_if_fail (action_name != NULL);
g_return_if_fail (app_info_has_action (info, action_name));
session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
if (session_bus && info->app_id)
{
gchar *object_path;
object_path = object_path_from_appid (info->app_id);
g_dbus_connection_call (session_bus, info->app_id, object_path,
"org.freedesktop.Application", "ActivateAction",
g_variant_new ("(sav@a{sv})", action_name, NULL,
g_desktop_app_info_make_platform_data (info, NULL, launch_context)),
NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
g_free (object_path);
}
else
{
gchar *group_name;
gchar *exec_line;
group_name = g_strdup_printf ("Desktop Action %s", action_name);
exec_line = g_key_file_get_string (info->keyfile, group_name, "Exec", NULL);
g_free (group_name);
if (exec_line)
g_desktop_app_info_launch_uris_with_spawn (info, session_bus, exec_line, NULL, launch_context,
_SPAWN_FLAGS_DEFAULT, NULL, NULL, NULL, NULL, NULL);
}
if (session_bus != NULL)
{
g_dbus_connection_flush (session_bus, NULL, NULL, NULL);
g_object_unref (session_bus);
}
}
/* Epilogue {{{1 */
/* vim:set foldmethod=marker: */
Reference in New Issue View Git Blame Copy Permalink