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Ignore whitespace Rev 3 → Rev 4

/nautilus-follow-symlink/branches/0.5.2/src/follow-symlink.c
0,0 → 1,145
#include "follow-symlink.h"
 
#include <glib/gprintf.h>
#include <sys/stat.h>
#include <errno.h> /* errno (3) */
#include <stdlib.h> /* realpath() (3) */
#include <string.h> /* strlen(), strerror() (3) */
 
// Offset at char 7 to remove file://
static const unsigned short URI_OFFSET = 7 * sizeof(gchar);
static const size_t PATH_LENGTH_BYTES = sizeof(gchar) * (PATH_MAX + 1);
 
/* Menu initialization */
void fsl_extension_menu_provider_iface_init(NautilusMenuProviderIface *iface)
{
TRACE();
 
//TODO: iface->get_background_items = fsl_get_background_items;
iface->get_file_items = fsl_get_file_items;
}
 
/* Bind to menu if needed */
GList *
fsl_get_file_items (NautilusMenuProvider * provider,
GtkWidget * window,
GList * files)
{
TRACE();
 
NautilusMenuItem *item;
 
// Number of files = g_list_length(files)
// Directory = nautilus_file_info_is_directory(files->data)
 
if (NULL==files || g_list_length(files) != 1) {
FSL_LOG( (NULL==files) ? "No file" : "More than one file" );
return NULL;
}
 
// Only file uris
{
gchar * uri_scheme = nautilus_file_info_get_uri_scheme(files->data);
if (strcmp(uri_scheme, "file") != 0) {
FSL_LOG( "Not file scheme" );
return NULL;
}
g_free(uri_scheme);
}
 
// Xref: http://www.koders.com/c/fidA0AA0A78334E1FA3D668FD10B437638F6D031D77.aspx?s=NautilusFile
GnomeVFSFileInfo * gfi = nautilus_file_info_get_vfs_file_info(files->data);
/*
* Xref: /usr/include/gnome-vfs-2.0/libgnomevfs/gnome-vfs-file-info.h
*
* Aparently type is never GNOME_VFS_FILE_TYPE_SYMBOLIC_LINK and symlinks
* are resolved to the target type
*/
/*if (gfi->type != GNOME_VFS_FILE_TYPE_SYMBOLIC_LINK) {*/
if (gfi->type != GNOME_VFS_FILE_TYPE_DIRECTORY) {
FSL_LOG( "Not directory" );
return NULL;
}
// We know the file is either a directory or a symlink to a directory
// TODO: Has glib/gnome any better/faster alternatives?
{
struct stat file_info;
// Note ..._get_name doesn't give the full path
const gchar * const file_name = nautilus_file_info_get_uri(files->data) + URI_OFFSET;
lstat(file_name, &file_info);
if (! S_ISLNK(file_info.st_mode)) {
FSL_LOG1( "Not S_ISLNK:", file_name );
return NULL;
}
}
 
item = fsl_menu_item_new(gtk_widget_get_screen(window), TRUE);
g_signal_connect(item, "activate", G_CALLBACK(fsl_callback),
files->data);
 
return g_list_append(NULL, item);
}
 
void fsl_callback (NautilusMenuItem * item, NautilusFileInfo * file_info)
{
TRACE();
 
gchar ** argv;
const gchar * link_name = nautilus_file_info_get_uri(file_info) + URI_OFFSET;
gchar * target = g_malloc(PATH_LENGTH_BYTES);
 
/* unlike readlink(man 2), realpath(man 3) resolves the symlink, while
* readlink returns the pointed file, which might be a relative path
* Xref: <http://www.gnu.org/software/libc/manual/html_node/Symbolic-Links.html>
*/
if (NULL == realpath(link_name, target)) {
g_printf("ERROR in realpath(): %s\n", strerror(errno));
g_assert( FALSE );
}
 
const gchar const * BASE_CMD = "nautilus --no-desktop --no-default-window \"";
gchar * command_line = g_malloc( sizeof(gchar) * ( strlen(BASE_CMD) + strlen(target) + 2 ) );
 
gchar * offset = g_stpcpy(command_line, BASE_CMD);
//offset = g_stpcpy(offset, "file://"); // unneeded; also makes nautilus think it may be incorrect
// if it contains spaces (instead of %20's)
offset = g_stpcpy(offset, target);
g_stpcpy(offset, "\"");
 
if (FALSE == g_shell_parse_argv(command_line, NULL, &argv, NULL)) {
g_assert( FALSE );
}
 
g_printf("nautilus-follow-symlink: Spawning nautilus with\n '%s'\n", command_line);
 
g_spawn_async( nautilus_file_info_get_parent_uri(file_info) + URI_OFFSET,
argv,
NULL,
G_SPAWN_SEARCH_PATH,
NULL, NULL, NULL, NULL);
 
g_free(command_line);
g_strfreev(argv);
}
 
/* Create the new menu item */
NautilusMenuItem *
fsl_menu_item_new(GdkScreen *screen, gboolean is_file_item)
{
TRACE();
 
NautilusMenuItem *ret;
const char *name;
const char *tooltip;
 
name = "-> Follow symbolic _link";
tooltip = "Open the directory pointed by the currently selected symbolic link";
 
// (name, label, tip, icon)
ret = nautilus_menu_item_new("FsymlinkExtension::follow_symlink",
name, tooltip, NULL);
//g_object_set_data(G_OBJECT(ret), "FsymlinkExtension::screen", screen);
return ret;
}
 
/* vim:set ts=4 et ai: */