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authorPerberos <[email protected]>2011-11-06 17:13:49 -0300
committerPerberos <[email protected]>2011-11-06 17:13:49 -0300
commit13e6e4ab1290cda9426eaedfeda70f7491b6b083 (patch)
tree2b9b2e1eac4cc6a161bea6f2197de4513ff1ddf7 /src/eggdesktopfile.c
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+/* eggdesktopfile.c - Freedesktop.Org Desktop Files
+ * Copyright (C) 2007 Novell, Inc.
+ *
+ * Based on mate-desktop-item.c
+ * Copyright (C) 1999, 2000 Red Hat Inc.
+ * Copyright (C) 2001 George Lebl
+ *
+ * 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 3 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; see the file COPYING.LIB. If not,
+ * write to the Free Software Foundation, Inc., 59 Temple Place -
+ * Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "eggdesktopfile.h"
+
+#include <string.h>
+#include <unistd.h>
+
+#include <glib/gi18n.h>
+#include <gdk/gdkx.h>
+#include <gtk/gtk.h>
+
+struct EggDesktopFile {
+ GKeyFile *key_file;
+ char *source;
+
+ char *name, *icon;
+ EggDesktopFileType type;
+ char document_code;
+};
+
+/**
+ * egg_desktop_file_new:
+ * @desktop_file_path: path to a Freedesktop-style Desktop file
+ * @error: error pointer
+ *
+ * Creates a new #EggDesktopFile for @desktop_file.
+ *
+ * Return value: the new #EggDesktopFile, or %NULL on error.
+ **/
+EggDesktopFile *
+egg_desktop_file_new (const char *desktop_file_path, GError **error)
+{
+ GKeyFile *key_file;
+
+ key_file = g_key_file_new ();
+ if (!g_key_file_load_from_file (key_file, desktop_file_path, 0, error))
+ {
+ g_key_file_free (key_file);
+ return NULL;
+ }
+
+ return egg_desktop_file_new_from_key_file (key_file, desktop_file_path,
+ error);
+}
+
+/**
+ * egg_desktop_file_new_from_data_dirs:
+ * @desktop_file_path: relative path to a Freedesktop-style Desktop file
+ * @error: error pointer
+ *
+ * Looks for @desktop_file_path in the paths returned from
+ * g_get_user_data_dir() and g_get_system_data_dirs(), and creates
+ * a new #EggDesktopFile from it.
+ *
+ * Return value: the new #EggDesktopFile, or %NULL on error.
+ **/
+EggDesktopFile *
+egg_desktop_file_new_from_data_dirs (const char *desktop_file_path,
+ GError **error)
+{
+ EggDesktopFile *desktop_file;
+ GKeyFile *key_file;
+ char *full_path;
+
+ key_file = g_key_file_new ();
+ if (!g_key_file_load_from_data_dirs (key_file, desktop_file_path,
+ &full_path, 0, error))
+ {
+ g_key_file_free (key_file);
+ return NULL;
+ }
+
+ desktop_file = egg_desktop_file_new_from_key_file (key_file,
+ full_path,
+ error);
+ g_free (full_path);
+ return desktop_file;
+}
+
+/**
+ * egg_desktop_file_new_from_dirs:
+ * @desktop_file_path: relative path to a Freedesktop-style Desktop file
+ * @search_dirs: NULL-terminated array of directories to search
+ * @error: error pointer
+ *
+ * Looks for @desktop_file_path in the paths returned from
+ * g_get_user_data_dir() and g_get_system_data_dirs(), and creates
+ * a new #EggDesktopFile from it.
+ *
+ * Return value: the new #EggDesktopFile, or %NULL on error.
+ **/
+EggDesktopFile *
+egg_desktop_file_new_from_dirs (const char *desktop_file_path,
+ const char **search_dirs,
+ GError **error)
+{
+ EggDesktopFile *desktop_file;
+ GKeyFile *key_file;
+ char *full_path;
+
+ key_file = g_key_file_new ();
+ if (!g_key_file_load_from_dirs (key_file, desktop_file_path, search_dirs,
+ &full_path, 0, error))
+ {
+ g_key_file_free (key_file);
+ return NULL;
+ }
+
+ desktop_file = egg_desktop_file_new_from_key_file (key_file,
+ full_path,
+ error);
+ g_free (full_path);
+ return desktop_file;
+}
+
+/**
+ * egg_desktop_file_new_from_key_file:
+ * @key_file: a #GKeyFile representing a desktop file
+ * @source: the path or URI that @key_file was loaded from, or %NULL
+ * @error: error pointer
+ *
+ * Creates a new #EggDesktopFile for @key_file. Assumes ownership of
+ * @key_file (on success or failure); you should consider @key_file to
+ * be freed after calling this function.
+ *
+ * Return value: the new #EggDesktopFile, or %NULL on error.
+ **/
+EggDesktopFile *
+egg_desktop_file_new_from_key_file (GKeyFile *key_file,
+ const char *source,
+ GError **error)
+{
+ EggDesktopFile *desktop_file;
+ char *version, *type;
+
+ if (!g_key_file_has_group (key_file, EGG_DESKTOP_FILE_GROUP))
+ {
+ g_set_error (error, EGG_DESKTOP_FILE_ERROR,
+ EGG_DESKTOP_FILE_ERROR_INVALID,
+ _("File is not a valid .desktop file"));
+ g_key_file_free (key_file);
+ return NULL;
+ }
+
+ version = g_key_file_get_value (key_file, EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_VERSION,
+ NULL);
+ if (version)
+ {
+ double version_num;
+ char *end;
+
+ version_num = g_ascii_strtod (version, &end);
+ if (*end)
+ {
+ g_warning ("Invalid Version string '%s' in %s",
+ version, source ? source : "(unknown)");
+ }
+ else if (version_num > 1.0)
+ {
+ g_set_error (error, EGG_DESKTOP_FILE_ERROR,
+ EGG_DESKTOP_FILE_ERROR_INVALID,
+ _("Unrecognized desktop file Version '%s'"), version);
+ g_free (version);
+ g_key_file_free (key_file);
+ return NULL;
+ }
+ g_free (version);
+ }
+
+ desktop_file = g_new0 (EggDesktopFile, 1);
+ desktop_file->key_file = key_file;
+
+ if (g_path_is_absolute (source))
+ desktop_file->source = g_filename_to_uri (source, NULL, NULL);
+ else
+ desktop_file->source = g_strdup (source);
+
+ desktop_file->name = g_key_file_get_string (key_file, EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_NAME, error);
+ if (!desktop_file->name)
+ {
+ egg_desktop_file_free (desktop_file);
+ return NULL;
+ }
+
+ type = g_key_file_get_string (key_file, EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_TYPE, error);
+ if (!type)
+ {
+ egg_desktop_file_free (desktop_file);
+ return NULL;
+ }
+
+ if (!strcmp (type, "Application"))
+ {
+ char *exec, *p;
+
+ desktop_file->type = EGG_DESKTOP_FILE_TYPE_APPLICATION;
+
+ exec = g_key_file_get_string (key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_EXEC,
+ error);
+ if (!exec)
+ {
+ egg_desktop_file_free (desktop_file);
+ g_free (type);
+ return NULL;
+ }
+
+ /* See if it takes paths or URIs or neither */
+ for (p = exec; *p; p++)
+ {
+ if (*p == '%')
+ {
+ if (p[1] == '\0' || strchr ("FfUu", p[1]))
+ {
+ desktop_file->document_code = p[1];
+ break;
+ }
+ p++;
+ }
+ }
+
+ g_free (exec);
+ }
+ else if (!strcmp (type, "Link"))
+ {
+ char *url;
+
+ desktop_file->type = EGG_DESKTOP_FILE_TYPE_LINK;
+
+ url = g_key_file_get_string (key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_URL,
+ error);
+ if (!url)
+ {
+ egg_desktop_file_free (desktop_file);
+ g_free (type);
+ return NULL;
+ }
+ g_free (url);
+ }
+ else if (!strcmp (type, "Directory"))
+ desktop_file->type = EGG_DESKTOP_FILE_TYPE_DIRECTORY;
+ else
+ desktop_file->type = EGG_DESKTOP_FILE_TYPE_UNRECOGNIZED;
+
+ g_free (type);
+
+ /* Check the Icon key */
+ desktop_file->icon = g_key_file_get_string (key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_ICON,
+ NULL);
+ if (desktop_file->icon && !g_path_is_absolute (desktop_file->icon))
+ {
+ char *ext;
+
+ /* Lots of .desktop files still get this wrong */
+ ext = strrchr (desktop_file->icon, '.');
+ if (ext && (!strcmp (ext, ".png") ||
+ !strcmp (ext, ".xpm") ||
+ !strcmp (ext, ".svg")))
+ {
+ g_warning ("Desktop file '%s' has malformed Icon key '%s'"
+ "(should not include extension)",
+ source ? source : "(unknown)",
+ desktop_file->icon);
+ *ext = '\0';
+ }
+ }
+
+ return desktop_file;
+}
+
+/**
+ * egg_desktop_file_free:
+ * @desktop_file: an #EggDesktopFile
+ *
+ * Frees @desktop_file.
+ **/
+void
+egg_desktop_file_free (EggDesktopFile *desktop_file)
+{
+ g_key_file_free (desktop_file->key_file);
+ g_free (desktop_file->source);
+ g_free (desktop_file->name);
+ g_free (desktop_file->icon);
+ g_free (desktop_file);
+}
+
+/**
+ * egg_desktop_file_get_source:
+ * @desktop_file: an #EggDesktopFile
+ *
+ * Gets the URI that @desktop_file was loaded from.
+ *
+ * Return value: @desktop_file's source URI
+ **/
+const char *
+egg_desktop_file_get_source (EggDesktopFile *desktop_file)
+{
+ return desktop_file->source;
+}
+
+/**
+ * egg_desktop_file_get_desktop_file_type:
+ * @desktop_file: an #EggDesktopFile
+ *
+ * Gets the desktop file type of @desktop_file.
+ *
+ * Return value: @desktop_file's type
+ **/
+EggDesktopFileType
+egg_desktop_file_get_desktop_file_type (EggDesktopFile *desktop_file)
+{
+ return desktop_file->type;
+}
+
+/**
+ * egg_desktop_file_get_name:
+ * @desktop_file: an #EggDesktopFile
+ *
+ * Gets the (localized) value of @desktop_file's "Name" key.
+ *
+ * Return value: the application/link name
+ **/
+const char *
+egg_desktop_file_get_name (EggDesktopFile *desktop_file)
+{
+ return desktop_file->name;
+}
+
+/**
+ * egg_desktop_file_get_icon:
+ * @desktop_file: an #EggDesktopFile
+ *
+ * Gets the value of @desktop_file's "Icon" key.
+ *
+ * If the icon string is a full path (that is, if g_path_is_absolute()
+ * returns %TRUE when called on it), it points to a file containing an
+ * unthemed icon. If the icon string is not a full path, it is the
+ * name of a themed icon, which can be looked up with %GtkIconTheme,
+ * or passed directly to a theme-aware widget like %GtkImage or
+ * %GtkCellRendererPixbuf.
+ *
+ * Return value: the icon path or name
+ **/
+const char *
+egg_desktop_file_get_icon (EggDesktopFile *desktop_file)
+{
+ return desktop_file->icon;
+}
+
+gboolean
+egg_desktop_file_has_key (EggDesktopFile *desktop_file,
+ const char *key,
+ GError **error)
+{
+ return g_key_file_has_key (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP, key,
+ error);
+}
+
+char *
+egg_desktop_file_get_string (EggDesktopFile *desktop_file,
+ const char *key,
+ GError **error)
+{
+ return g_key_file_get_string (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP, key,
+ error);
+}
+
+char *
+egg_desktop_file_get_locale_string (EggDesktopFile *desktop_file,
+ const char *key,
+ const char *locale,
+ GError **error)
+{
+ return g_key_file_get_locale_string (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP, key, locale,
+ error);
+}
+
+gboolean
+egg_desktop_file_get_boolean (EggDesktopFile *desktop_file,
+ const char *key,
+ GError **error)
+{
+ return g_key_file_get_boolean (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP, key,
+ error);
+}
+
+double
+egg_desktop_file_get_numeric (EggDesktopFile *desktop_file,
+ const char *key,
+ GError **error)
+{
+ return g_key_file_get_double (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP, key,
+ error);
+}
+
+char **
+egg_desktop_file_get_string_list (EggDesktopFile *desktop_file,
+ const char *key,
+ gsize *length,
+ GError **error)
+{
+ return g_key_file_get_string_list (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP, key, length,
+ error);
+}
+
+char **
+egg_desktop_file_get_locale_string_list (EggDesktopFile *desktop_file,
+ const char *key,
+ const char *locale,
+ gsize *length,
+ GError **error)
+{
+ return g_key_file_get_locale_string_list (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP, key,
+ locale, length,
+ error);
+}
+
+/**
+ * egg_desktop_file_can_launch:
+ * @desktop_file: an #EggDesktopFile
+ * @desktop_environment: the name of the running desktop environment,
+ * or %NULL
+ *
+ * Tests if @desktop_file can/should be launched in the current
+ * environment. If @desktop_environment is non-%NULL, @desktop_file's
+ * "OnlyShowIn" and "NotShowIn" keys are checked to make sure that
+ * this desktop_file is appropriate for the named environment.
+ *
+ * Furthermore, if @desktop_file has type
+ * %EGG_DESKTOP_FILE_TYPE_APPLICATION, its "TryExec" key (if any) is
+ * also checked, to make sure the binary it points to exists.
+ *
+ * egg_desktop_file_can_launch() does NOT check the value of the
+ * "Hidden" key.
+ *
+ * Return value: %TRUE if @desktop_file can be launched
+ **/
+gboolean
+egg_desktop_file_can_launch (EggDesktopFile *desktop_file,
+ const char *desktop_environment)
+{
+ char *try_exec, *found_program;
+ char **only_show_in, **not_show_in;
+ gboolean found;
+ int i;
+
+ if (desktop_file->type != EGG_DESKTOP_FILE_TYPE_APPLICATION &&
+ desktop_file->type != EGG_DESKTOP_FILE_TYPE_LINK)
+ return FALSE;
+
+ if (desktop_environment)
+ {
+ only_show_in = g_key_file_get_string_list (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_ONLY_SHOW_IN,
+ NULL, NULL);
+ if (only_show_in)
+ {
+ for (i = 0, found = FALSE; only_show_in[i] && !found; i++)
+ {
+ if (!strcmp (only_show_in[i], desktop_environment))
+ found = TRUE;
+ }
+
+ g_strfreev (only_show_in);
+
+ if (!found)
+ return FALSE;
+ }
+
+ not_show_in = g_key_file_get_string_list (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_NOT_SHOW_IN,
+ NULL, NULL);
+ if (not_show_in)
+ {
+ for (i = 0, found = FALSE; not_show_in[i] && !found; i++)
+ {
+ if (!strcmp (not_show_in[i], desktop_environment))
+ found = TRUE;
+ }
+
+ g_strfreev (not_show_in);
+
+ if (found)
+ return FALSE;
+ }
+ }
+
+ if (desktop_file->type == EGG_DESKTOP_FILE_TYPE_APPLICATION)
+ {
+ try_exec = g_key_file_get_string (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_TRY_EXEC,
+ NULL);
+ if (try_exec)
+ {
+ found_program = g_find_program_in_path (try_exec);
+ g_free (try_exec);
+
+ if (!found_program)
+ return FALSE;
+ g_free (found_program);
+ }
+ }
+
+ return TRUE;
+}
+
+/**
+ * egg_desktop_file_accepts_documents:
+ * @desktop_file: an #EggDesktopFile
+ *
+ * Tests if @desktop_file represents an application that can accept
+ * documents on the command line.
+ *
+ * Return value: %TRUE or %FALSE
+ **/
+gboolean
+egg_desktop_file_accepts_documents (EggDesktopFile *desktop_file)
+{
+ return desktop_file->document_code != 0;
+}
+
+/**
+ * egg_desktop_file_accepts_multiple:
+ * @desktop_file: an #EggDesktopFile
+ *
+ * Tests if @desktop_file can accept multiple documents at once.
+ *
+ * If this returns %FALSE, you can still pass multiple documents to
+ * egg_desktop_file_launch(), but that will result in multiple copies
+ * of the application being launched. See egg_desktop_file_launch()
+ * for more details.
+ *
+ * Return value: %TRUE or %FALSE
+ **/
+gboolean
+egg_desktop_file_accepts_multiple (EggDesktopFile *desktop_file)
+{
+ return (desktop_file->document_code == 'F' ||
+ desktop_file->document_code == 'U');
+}
+
+/**
+ * egg_desktop_file_accepts_uris:
+ * @desktop_file: an #EggDesktopFile
+ *
+ * Tests if @desktop_file can accept (non-"file:") URIs as documents to
+ * open.
+ *
+ * Return value: %TRUE or %FALSE
+ **/
+gboolean
+egg_desktop_file_accepts_uris (EggDesktopFile *desktop_file)
+{
+ return (desktop_file->document_code == 'U' ||
+ desktop_file->document_code == 'u');
+}
+
+static void
+append_quoted_word (GString *str,
+ const char *s,
+ gboolean in_single_quotes,
+ gboolean in_double_quotes)
+{
+ const char *p;
+
+ if (!in_single_quotes && !in_double_quotes)
+ g_string_append_c (str, '\'');
+ else if (!in_single_quotes && in_double_quotes)
+ g_string_append (str, "\"'");
+
+ if (!strchr (s, '\''))
+ g_string_append (str, s);
+ else
+ {
+ for (p = s; *p != '\0'; p++)
+ {
+ if (*p == '\'')
+ g_string_append (str, "'\\''");
+ else
+ g_string_append_c (str, *p);
+ }
+ }
+
+ if (!in_single_quotes && !in_double_quotes)
+ g_string_append_c (str, '\'');
+ else if (!in_single_quotes && in_double_quotes)
+ g_string_append (str, "'\"");
+}
+
+static void
+do_percent_subst (EggDesktopFile *desktop_file,
+ char code,
+ GString *str,
+ GSList **documents,
+ gboolean in_single_quotes,
+ gboolean in_double_quotes)
+{
+ GSList *d;
+ char *doc;
+
+ switch (code)
+ {
+ case '%':
+ g_string_append_c (str, '%');
+ break;
+
+ case 'F':
+ case 'U':
+ for (d = *documents; d; d = d->next)
+ {
+ doc = d->data;
+ g_string_append (str, " ");
+ append_quoted_word (str, doc, in_single_quotes, in_double_quotes);
+ }
+ *documents = NULL;
+ break;
+
+ case 'f':
+ case 'u':
+ if (*documents)
+ {
+ doc = (*documents)->data;
+ g_string_append (str, " ");
+ append_quoted_word (str, doc, in_single_quotes, in_double_quotes);
+ *documents = (*documents)->next;
+ }
+ break;
+
+ case 'i':
+ if (desktop_file->icon)
+ {
+ g_string_append (str, "--icon ");
+ append_quoted_word (str, desktop_file->icon,
+ in_single_quotes, in_double_quotes);
+ }
+ break;
+
+ case 'c':
+ if (desktop_file->name)
+ {
+ append_quoted_word (str, desktop_file->name,
+ in_single_quotes, in_double_quotes);
+ }
+ break;
+
+ case 'k':
+ if (desktop_file->source)
+ {
+ append_quoted_word (str, desktop_file->source,
+ in_single_quotes, in_double_quotes);
+ }
+ break;
+
+ case 'D':
+ case 'N':
+ case 'd':
+ case 'n':
+ case 'v':
+ case 'm':
+ /* Deprecated; skip */
+ break;
+
+ default:
+ g_warning ("Unrecognized %%-code '%%%c' in Exec", code);
+ break;
+ }
+}
+
+static char *
+parse_exec (EggDesktopFile *desktop_file,
+ GSList **documents,
+ GError **error)
+{
+ char *exec, *p, *command;
+ gboolean escape, single_quot, double_quot;
+ GString *gs;
+
+ exec = g_key_file_get_string (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_EXEC,
+ error);
+ if (!exec)
+ return NULL;
+
+ /* Build the command */
+ gs = g_string_new (NULL);
+ escape = single_quot = double_quot = FALSE;
+
+ for (p = exec; *p != '\0'; p++)
+ {
+ if (escape)
+ {
+ escape = FALSE;
+ g_string_append_c (gs, *p);
+ }
+ else if (*p == '\\')
+ {
+ if (!single_quot)
+ escape = TRUE;
+ g_string_append_c (gs, *p);
+ }
+ else if (*p == '\'')
+ {
+ g_string_append_c (gs, *p);
+ if (!single_quot && !double_quot)
+ single_quot = TRUE;
+ else if (single_quot)
+ single_quot = FALSE;
+ }
+ else if (*p == '"')
+ {
+ g_string_append_c (gs, *p);
+ if (!single_quot && !double_quot)
+ double_quot = TRUE;
+ else if (double_quot)
+ double_quot = FALSE;
+ }
+ else if (*p == '%' && p[1])
+ {
+ do_percent_subst (desktop_file, p[1], gs, documents,
+ single_quot, double_quot);
+ p++;
+ }
+ else
+ g_string_append_c (gs, *p);
+ }
+
+ g_free (exec);
+ command = g_string_free (gs, FALSE);
+
+ /* Prepend "xdg-terminal " if needed (FIXME: use gvfs) */
+ if (g_key_file_has_key (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_TERMINAL,
+ NULL))
+ {
+ GError *terminal_error = NULL;
+ gboolean use_terminal =
+ g_key_file_get_boolean (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_TERMINAL,
+ &terminal_error);
+ if (terminal_error)
+ {
+ g_free (command);
+ g_propagate_error (error, terminal_error);
+ return NULL;
+ }
+
+ if (use_terminal)
+ {
+ gs = g_string_new ("xdg-terminal ");
+ append_quoted_word (gs, command, FALSE, FALSE);
+ g_free (command);
+ command = g_string_free (gs, FALSE);
+ }
+ }
+
+ return command;
+}
+
+static GSList *
+translate_document_list (EggDesktopFile *desktop_file, GSList *documents)
+{
+ gboolean accepts_uris = egg_desktop_file_accepts_uris (desktop_file);
+ GSList *ret, *d;
+
+ for (d = documents, ret = NULL; d; d = d->next)
+ {
+ const char *document = d->data;
+ gboolean is_uri = !g_path_is_absolute (document);
+ char *translated;
+
+ if (accepts_uris)
+ {
+ if (is_uri)
+ translated = g_strdup (document);
+ else
+ translated = g_filename_to_uri (document, NULL, NULL);
+ }
+ else
+ {
+ if (is_uri)
+ translated = g_filename_from_uri (document, NULL, NULL);
+ else
+ translated = g_strdup (document);
+ }
+
+ if (translated)
+ ret = g_slist_prepend (ret, translated);
+ }
+
+ return g_slist_reverse (ret);
+}
+
+static void
+free_document_list (GSList *documents)
+{
+ GSList *d;
+
+ for (d = documents; d; d = d->next)
+ g_free (d->data);
+ g_slist_free (documents);
+}
+
+/**
+ * egg_desktop_file_parse_exec:
+ * @desktop_file: a #EggDesktopFile
+ * @documents: a list of document paths or URIs
+ * @error: error pointer
+ *
+ * Parses @desktop_file's Exec key, inserting @documents into it, and
+ * returns the result.
+ *
+ * If @documents contains non-file: URIs and @desktop_file does not
+ * accept URIs, those URIs will be ignored. Likewise, if @documents
+ * contains more elements than @desktop_file accepts, the extra
+ * documents will be ignored.
+ *
+ * Return value: the parsed Exec string
+ **/
+char *
+egg_desktop_file_parse_exec (EggDesktopFile *desktop_file,
+ GSList *documents,
+ GError **error)
+{
+ GSList *translated, *docs;
+ char *command;
+
+ docs = translated = translate_document_list (desktop_file, documents);
+ command = parse_exec (desktop_file, &docs, error);
+ free_document_list (translated);
+
+ return command;
+}
+
+static gboolean
+parse_link (EggDesktopFile *desktop_file,
+ EggDesktopFile **app_desktop_file,
+ GSList **documents,
+ GError **error)
+{
+ char *url;
+ GKeyFile *key_file;
+
+ url = g_key_file_get_string (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_URL,
+ error);
+ if (!url)
+ return FALSE;
+ *documents = g_slist_prepend (NULL, url);
+
+ /* FIXME: use gvfs */
+ key_file = g_key_file_new ();
+ g_key_file_set_string (key_file, EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_NAME,
+ "xdg-open");
+ g_key_file_set_string (key_file, EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_TYPE,
+ "Application");
+ g_key_file_set_string (key_file, EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_EXEC,
+ "xdg-open %u");
+ *app_desktop_file = egg_desktop_file_new_from_key_file (key_file, NULL, NULL);
+ return TRUE;
+}
+
+#if GTK_CHECK_VERSION (2, 12, 0)
+static char *
+start_startup_notification (GdkDisplay *display,
+ EggDesktopFile *desktop_file,
+ const char *argv0,
+ int screen,
+ int workspace,
+ guint32 launch_time)
+{
+ static int sequence = 0;
+ char *startup_id;
+ char *description, *wmclass;
+ char *screen_str, *workspace_str;
+
+ if (g_key_file_has_key (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_STARTUP_NOTIFY,
+ NULL))
+ {
+ if (!g_key_file_get_boolean (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_STARTUP_NOTIFY,
+ NULL))
+ return NULL;
+ wmclass = NULL;
+ }
+ else
+ {
+ wmclass = g_key_file_get_string (desktop_file->key_file,
+ EGG_DESKTOP_FILE_GROUP,
+ EGG_DESKTOP_FILE_KEY_STARTUP_WM_CLASS,
+ NULL);
+ if (!wmclass)
+ return NULL;
+ }
+
+ if (launch_time == (guint32)-1)
+ launch_time = gdk_x11_display_get_user_time (display);
+ startup_id = g_strdup_printf ("%s-%lu-%s-%s-%d_TIME%lu",
+ g_get_prgname (),
+ (unsigned long)getpid (),
+ g_get_host_name (),
+ argv0,
+ sequence++,
+ (unsigned long)launch_time);
+
+ description = g_strdup_printf (_("Starting %s"), desktop_file->name);
+ screen_str = g_strdup_printf ("%d", screen);
+ workspace_str = workspace == -1 ? NULL : g_strdup_printf ("%d", workspace);
+
+ gdk_x11_display_broadcast_startup_message (display, "new",
+ "ID", startup_id,
+ "NAME", desktop_file->name,
+ "SCREEN", screen_str,
+ "BIN", argv0,
+ "ICON", desktop_file->icon,
+ "DESKTOP", workspace_str,
+ "DESCRIPTION", description,
+ "WMCLASS", wmclass,
+ NULL);
+
+ g_free (description);
+ g_free (wmclass);
+ g_free (screen_str);
+ g_free (workspace_str);
+
+ return startup_id;
+}
+
+static void
+end_startup_notification (GdkDisplay *display,
+ const char *startup_id)
+{
+ gdk_x11_display_broadcast_startup_message (display, "remove",
+ "ID", startup_id,
+ NULL);
+}
+
+#define EGG_DESKTOP_FILE_SN_TIMEOUT_LENGTH (30 /* seconds */)
+
+typedef struct {
+ GdkDisplay *display;
+ char *startup_id;
+} StartupNotificationData;
+
+static gboolean
+startup_notification_timeout (gpointer data)
+{
+ StartupNotificationData *sn_data = data;
+
+ end_startup_notification (sn_data->display, sn_data->startup_id);
+ g_object_unref (sn_data->display);
+ g_free (sn_data->startup_id);
+ g_free (sn_data);
+
+ return FALSE;
+}
+
+static void
+set_startup_notification_timeout (GdkDisplay *display,
+ const char *startup_id)
+{
+ StartupNotificationData *sn_data;
+
+ sn_data = g_new (StartupNotificationData, 1);
+ sn_data->display = g_object_ref (display);
+ sn_data->startup_id = g_strdup (startup_id);
+
+ g_timeout_add_seconds (EGG_DESKTOP_FILE_SN_TIMEOUT_LENGTH,
+ startup_notification_timeout, sn_data);
+}
+#endif /* GTK 2.12 */
+
+static GPtrArray *
+array_putenv (GPtrArray *env, char *variable)
+{
+ guint i, keylen;
+
+ if (!env)
+ {
+ char **envp;
+
+ env = g_ptr_array_new ();
+
+ envp = g_listenv ();
+ for (i = 0; envp[i]; i++)
+ {
+ const char *value;
+
+ value = g_getenv (envp[i]);
+ g_ptr_array_add (env, g_strdup_printf ("%s=%s", envp[i],
+ value ? value : ""));
+ }
+ g_strfreev (envp);
+ }
+
+ keylen = strcspn (variable, "=");
+
+ /* Remove old value of key */
+ for (i = 0; i < env->len; i++)
+ {
+ char *envvar = env->pdata[i];
+
+ if (!strncmp (envvar, variable, keylen) && envvar[keylen] == '=')
+ {
+ g_free (envvar);
+ g_ptr_array_remove_index_fast (env, i);
+ break;
+ }
+ }
+
+ /* Add new value */
+ g_ptr_array_add (env, g_strdup (variable));
+
+ return env;
+}
+
+static gboolean
+egg_desktop_file_launchv (EggDesktopFile *desktop_file,
+ GSList *documents, va_list args,
+ GError **error)
+{
+ EggDesktopFileLaunchOption option;
+ GSList *translated_documents = NULL, *docs = NULL;
+ char *command, **argv;
+ int argc, i, screen_num;
+ gboolean success, current_success;
+ GdkDisplay *display;
+ char *startup_id;
+
+ GPtrArray *env = NULL;
+ char **variables = NULL;
+ GdkScreen *screen = NULL;
+ int workspace = -1;
+ const char *directory = NULL;
+ guint32 launch_time = (guint32)-1;
+ GSpawnFlags flags = G_SPAWN_SEARCH_PATH;
+ GSpawnChildSetupFunc setup_func = NULL;
+ gpointer setup_data = NULL;
+
+ GPid *ret_pid = NULL;
+ int *ret_stdin = NULL, *ret_stdout = NULL, *ret_stderr = NULL;
+ char **ret_startup_id = NULL;
+
+ if (documents && desktop_file->document_code == 0)
+ {
+ g_set_error (error, EGG_DESKTOP_FILE_ERROR,
+ EGG_DESKTOP_FILE_ERROR_NOT_LAUNCHABLE,
+ _("Application does not accept documents on command line"));
+ return FALSE;
+ }
+
+ /* Read the options: technically it's incorrect for the caller to
+ * NULL-terminate the list of options (rather than 0-terminating
+ * it), but NULL-terminating lets us use G_GNUC_NULL_TERMINATED,
+ * it's more consistent with other glib/gtk methods, and it will
+ * work as long as sizeof (int) <= sizeof (NULL), and NULL is
+ * represented as 0. (Which is true everywhere we care about.)
+ */
+ while ((option = va_arg (args, EggDesktopFileLaunchOption)))
+ {
+ switch (option)
+ {
+ case EGG_DESKTOP_FILE_LAUNCH_CLEARENV:
+ if (env)
+ g_ptr_array_free (env, TRUE);
+ env = g_ptr_array_new ();
+ break;
+ case EGG_DESKTOP_FILE_LAUNCH_PUTENV:
+ variables = va_arg (args, char **);
+ for (i = 0; variables[i]; i++)
+ env = array_putenv (env, variables[i]);
+ break;
+
+ case EGG_DESKTOP_FILE_LAUNCH_SCREEN:
+ screen = va_arg (args, GdkScreen *);
+ break;
+ case EGG_DESKTOP_FILE_LAUNCH_WORKSPACE:
+ workspace = va_arg (args, int);
+ break;
+
+ case EGG_DESKTOP_FILE_LAUNCH_DIRECTORY:
+ directory = va_arg (args, const char *);
+ break;
+ case EGG_DESKTOP_FILE_LAUNCH_TIME:
+ launch_time = va_arg (args, guint32);
+ break;
+ case EGG_DESKTOP_FILE_LAUNCH_FLAGS:
+ flags |= va_arg (args, GSpawnFlags);
+ /* Make sure they didn't set any flags that don't make sense. */
+ flags &= ~G_SPAWN_FILE_AND_ARGV_ZERO;
+ break;
+ case EGG_DESKTOP_FILE_LAUNCH_SETUP_FUNC:
+ setup_func = va_arg (args, GSpawnChildSetupFunc);
+ setup_data = va_arg (args, gpointer);
+ break;
+
+ case EGG_DESKTOP_FILE_LAUNCH_RETURN_PID:
+ ret_pid = va_arg (args, GPid *);
+ break;
+ case EGG_DESKTOP_FILE_LAUNCH_RETURN_STDIN_PIPE:
+ ret_stdin = va_arg (args, int *);
+ break;
+ case EGG_DESKTOP_FILE_LAUNCH_RETURN_STDOUT_PIPE:
+ ret_stdout = va_arg (args, int *);
+ break;
+ case EGG_DESKTOP_FILE_LAUNCH_RETURN_STDERR_PIPE:
+ ret_stderr = va_arg (args, int *);
+ break;
+ case EGG_DESKTOP_FILE_LAUNCH_RETURN_STARTUP_ID:
+ ret_startup_id = va_arg (args, char **);
+ break;
+
+ default:
+ g_set_error (error, EGG_DESKTOP_FILE_ERROR,
+ EGG_DESKTOP_FILE_ERROR_UNRECOGNIZED_OPTION,
+ _("Unrecognized launch option: %d"),
+ GPOINTER_TO_INT (option));
+ success = FALSE;
+ goto out;
+ }
+ }
+
+ if (screen)
+ {
+ char *display_name = gdk_screen_make_display_name (screen);
+ char *display_env = g_strdup_printf ("DISPLAY=%s", display_name);
+ env = array_putenv (env, display_env);
+ g_free (display_name);
+ g_free (display_env);
+
+ display = gdk_screen_get_display (screen);
+ }
+ else
+ {
+ display = gdk_display_get_default ();
+ screen = gdk_display_get_default_screen (display);
+ }
+ screen_num = gdk_screen_get_number (screen);
+
+ translated_documents = translate_document_list (desktop_file, documents);
+ docs = translated_documents;
+
+ success = FALSE;
+
+ do
+ {
+ command = parse_exec (desktop_file, &docs, error);
+ if (!command)
+ goto out;
+
+ if (!g_shell_parse_argv (command, &argc, &argv, error))
+ {
+ g_free (command);
+ goto out;
+ }
+ g_free (command);
+
+#if GTK_CHECK_VERSION (2, 12, 0)
+ startup_id = start_startup_notification (display, desktop_file,
+ argv[0], screen_num,
+ workspace, launch_time);
+ if (startup_id)
+ {
+ char *startup_id_env = g_strdup_printf ("DESKTOP_STARTUP_ID=%s",
+ startup_id);
+ env = array_putenv (env, startup_id_env);
+ g_free (startup_id_env);
+ }
+#else
+ startup_id = NULL;
+#endif /* GTK 2.12 */
+
+ if (env != NULL)
+ g_ptr_array_add (env, NULL);
+
+ current_success =
+ g_spawn_async_with_pipes (directory,
+ argv,
+ env ? (char **)(env->pdata) : NULL,
+ flags,
+ setup_func, setup_data,
+ ret_pid,
+ ret_stdin, ret_stdout, ret_stderr,
+ error);
+ g_strfreev (argv);
+
+ if (startup_id)
+ {
+#if GTK_CHECK_VERSION (2, 12, 0)
+ if (current_success)
+ {
+ set_startup_notification_timeout (display, startup_id);
+
+ if (ret_startup_id)
+ *ret_startup_id = startup_id;
+ else
+ g_free (startup_id);
+ }
+ else
+#endif /* GTK 2.12 */
+ g_free (startup_id);
+ }
+ else if (ret_startup_id)
+ *ret_startup_id = NULL;
+
+ if (current_success)
+ {
+ /* If we successfully launch any instances of the app, make
+ * sure we return TRUE and don't set @error.
+ */
+ success = TRUE;
+ error = NULL;
+
+ /* Also, only set the output params on the first one */
+ ret_pid = NULL;
+ ret_stdin = ret_stdout = ret_stderr = NULL;
+ ret_startup_id = NULL;
+ }
+ }
+ while (docs && current_success);
+
+ out:
+ if (env)
+ {
+ g_ptr_array_foreach (env, (GFunc)g_free, NULL);
+ g_ptr_array_free (env, TRUE);
+ }
+ free_document_list (translated_documents);
+
+ return success;
+}
+
+/**
+ * egg_desktop_file_launch:
+ * @desktop_file: an #EggDesktopFile
+ * @documents: a list of URIs or paths to documents to open
+ * @error: error pointer
+ * @...: additional options
+ *
+ * Launches @desktop_file with the given arguments. Additional options
+ * can be specified as follows:
+ *
+ * %EGG_DESKTOP_FILE_LAUNCH_CLEARENV: (no arguments)
+ * clears the environment in the child process
+ * %EGG_DESKTOP_FILE_LAUNCH_PUTENV: (char **variables)
+ * adds the NAME=VALUE strings in the given %NULL-terminated
+ * array to the child process's environment
+ * %EGG_DESKTOP_FILE_LAUNCH_SCREEN: (GdkScreen *screen)
+ * causes the application to be launched on the given screen
+ * %EGG_DESKTOP_FILE_LAUNCH_WORKSPACE: (int workspace)
+ * causes the application to be launched on the given workspace
+ * %EGG_DESKTOP_FILE_LAUNCH_DIRECTORY: (char *dir)
+ * causes the application to be launched in the given directory
+ * %EGG_DESKTOP_FILE_LAUNCH_TIME: (guint32 launch_time)
+ * sets the "launch time" for the application. If the user
+ * interacts with another window after @launch_time but before
+ * the launched application creates its first window, the window
+ * manager may choose to not give focus to the new application.
+ * Passing 0 for @launch_time will explicitly request that the
+ * application not receive focus.
+ * %EGG_DESKTOP_FILE_LAUNCH_FLAGS (GSpawnFlags flags)
+ * Sets additional #GSpawnFlags to use. See g_spawn_async() for
+ * more details.
+ * %EGG_DESKTOP_FILE_LAUNCH_SETUP_FUNC (GSpawnChildSetupFunc, gpointer)
+ * Sets the child setup callback and the data to pass to it.
+ * (See g_spawn_async() for more details.)
+ *
+ * %EGG_DESKTOP_FILE_LAUNCH_RETURN_PID (GPid **pid)
+ * On a successful launch, sets *@pid to the PID of the launched
+ * application.
+ * %EGG_DESKTOP_FILE_LAUNCH_RETURN_STARTUP_ID (char **startup_id)
+ * On a successful launch, sets *@startup_id to the Startup
+ * Notification "startup id" of the launched application.
+ * %EGG_DESKTOP_FILE_LAUNCH_RETURN_STDIN_PIPE (int *fd)
+ * On a successful launch, sets *@fd to the file descriptor of
+ * a pipe connected to the application's stdin.
+ * %EGG_DESKTOP_FILE_LAUNCH_RETURN_STDOUT_PIPE (int *fd)
+ * On a successful launch, sets *@fd to the file descriptor of
+ * a pipe connected to the application's stdout.
+ * %EGG_DESKTOP_FILE_LAUNCH_RETURN_STDERR_PIPE (int *fd)
+ * On a successful launch, sets *@fd to the file descriptor of
+ * a pipe connected to the application's stderr.
+ *
+ * The options should be terminated with a single %NULL.
+ *
+ * If @documents contains multiple documents, but
+ * egg_desktop_file_accepts_multiple() returns %FALSE for
+ * @desktop_file, then egg_desktop_file_launch() will actually launch
+ * multiple instances of the application. In that case, the return
+ * value (as well as any values passed via
+ * %EGG_DESKTOP_FILE_LAUNCH_RETURN_PID, etc) will only reflect the
+ * first instance of the application that was launched (but the
+ * %EGG_DESKTOP_FILE_LAUNCH_SETUP_FUNC will be called for each
+ * instance).
+ *
+ * Return value: %TRUE if the application was successfully launched.
+ **/
+gboolean
+egg_desktop_file_launch (EggDesktopFile *desktop_file,
+ GSList *documents, GError **error,
+ ...)
+{
+ va_list args;
+ gboolean success;
+ EggDesktopFile *app_desktop_file;
+
+ switch (desktop_file->type)
+ {
+ case EGG_DESKTOP_FILE_TYPE_APPLICATION:
+ va_start (args, error);
+ success = egg_desktop_file_launchv (desktop_file, documents,
+ args, error);
+ va_end (args);
+ break;
+
+ case EGG_DESKTOP_FILE_TYPE_LINK:
+ if (documents)
+ {
+ g_set_error (error, EGG_DESKTOP_FILE_ERROR,
+ EGG_DESKTOP_FILE_ERROR_NOT_LAUNCHABLE,
+ _("Can't pass document URIs to a 'Type=Link' desktop entry"));
+ return FALSE;
+ }
+
+ if (!parse_link (desktop_file, &app_desktop_file, &documents, error))
+ return FALSE;
+
+ va_start (args, error);
+ success = egg_desktop_file_launchv (app_desktop_file, documents,
+ args, error);
+ va_end (args);
+
+ egg_desktop_file_free (app_desktop_file);
+ free_document_list (documents);
+ break;
+
+ case EGG_DESKTOP_FILE_TYPE_UNRECOGNIZED:
+ case EGG_DESKTOP_FILE_TYPE_DIRECTORY:
+ default:
+ g_set_error (error, EGG_DESKTOP_FILE_ERROR,
+ EGG_DESKTOP_FILE_ERROR_NOT_LAUNCHABLE,
+ _("Not a launchable item"));
+ success = FALSE;
+ break;
+ }
+
+ return success;
+}
+
+
+GQuark
+egg_desktop_file_error_quark (void)
+{
+ return g_quark_from_static_string ("egg-desktop_file-error-quark");
+}
+
+
+G_LOCK_DEFINE_STATIC (egg_desktop_file);
+static EggDesktopFile *egg_desktop_file;
+
+static void
+egg_set_desktop_file_internal (const char *desktop_file_path,
+ gboolean set_defaults)
+{
+ GError *error = NULL;
+
+ G_LOCK (egg_desktop_file);
+ if (egg_desktop_file)
+ egg_desktop_file_free (egg_desktop_file);
+
+ egg_desktop_file = egg_desktop_file_new (desktop_file_path, &error);
+ if (error)
+ {
+ g_warning ("Could not load desktop file '%s': %s",
+ desktop_file_path, error->message);
+ g_error_free (error);
+ }
+
+ if (set_defaults && egg_desktop_file != NULL) {
+ /* Set localized application name and default window icon */
+ if (egg_desktop_file->name)
+ g_set_application_name (egg_desktop_file->name);
+ if (egg_desktop_file->icon)
+ {
+ if (g_path_is_absolute (egg_desktop_file->icon))
+ gtk_window_set_default_icon_from_file (egg_desktop_file->icon, NULL);
+ else
+ gtk_window_set_default_icon_name (egg_desktop_file->icon);
+ }
+ }
+
+ G_UNLOCK (egg_desktop_file);
+}
+
+/**
+ * egg_set_desktop_file:
+ * @desktop_file_path: path to the application's desktop file
+ *
+ * Creates an #EggDesktopFile for the application from the data at
+ * @desktop_file_path. This will also call g_set_application_name()
+ * with the localized application name from the desktop file, and
+ * gtk_window_set_default_icon_name() or
+ * gtk_window_set_default_icon_from_file() with the application's
+ * icon. Other code may use additional information from the desktop
+ * file.
+ * See egg_set_desktop_file_without_defaults() for a variant of this
+ * function that does not set the application name and default window
+ * icon.
+ *
+ * Note that for thread safety reasons, this function can only
+ * be called once, and is mutually exclusive with calling
+ * egg_set_desktop_file_without_defaults().
+ **/
+void
+egg_set_desktop_file (const char *desktop_file_path)
+{
+ egg_set_desktop_file_internal (desktop_file_path, TRUE);
+}
+
+/**
+ * egg_set_desktop_file_without_defaults:
+ * @desktop_file_path: path to the application's desktop file
+ *
+ * Creates an #EggDesktopFile for the application from the data at
+ * @desktop_file_path.
+ * See egg_set_desktop_file() for a variant of this function that
+ * sets the application name and default window icon from the information
+ * in the desktop file.
+ *
+ * Note that for thread safety reasons, this function can only
+ * be called once, and is mutually exclusive with calling
+ * egg_set_desktop_file().
+ **/
+void
+egg_set_desktop_file_without_defaults (const char *desktop_file_path)
+{
+ egg_set_desktop_file_internal (desktop_file_path, FALSE);
+}
+
+/**
+ * egg_get_desktop_file:
+ *
+ * Gets the application's #EggDesktopFile, as set by
+ * egg_set_desktop_file().
+ *
+ * Return value: the #EggDesktopFile, or %NULL if it hasn't been set.
+ **/
+EggDesktopFile *
+egg_get_desktop_file (void)
+{
+ EggDesktopFile *retval;
+
+ G_LOCK (egg_desktop_file);
+ retval = egg_desktop_file;
+ G_UNLOCK (egg_desktop_file);
+
+ return retval;
+}