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Ignore whitespace Rev 23 → Rev 24

/nautilus-follow-symlink/tags/0.9.0/src/follow-symlink.c
0,0 → 1,225
#include "follow-symlink.h"
 
// 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);
 
extern int errno;
 
/* Menu initialization */
void fsl_extension_menu_provider_iface_init(NautilusMenuProviderIface *iface)
{
TRACE();
 
iface->get_file_items = fsl_get_file_items;
iface->get_background_items = fsl_get_background_items;
}
 
/* Implementation of the menu attachment,
* this is slightly different whith file items and with background (one folder)
* items, but shares most of the code, so the common part is here.
*/
GList * fsl_get_items_impl(GtkWidget * window,
NautilusFileInfo * file_info,
gboolean is_file_item,
GList * input)
{
TRACE();
 
NautilusMenuItem *item;
 
// Only file uris
{
// TODO: what about GnomeVFSFileInfo's is_local ?
gchar * uri_scheme = nautilus_file_info_get_uri_scheme(file_info);
if (strcmp(uri_scheme, "file") != 0) {
FSL_LOG1( "Not file scheme" );
return NULL;
}
g_free(uri_scheme);
}
 
// We know the file is either a directory or a symlink to a directory
// TODO: Has glib/gnome any better/faster alternatives?
GnomeVFSFileInfo * gfi = nautilus_file_info_get_vfs_file_info(file_info);
 
/* TODO: In which situations might the flags field be invalid?
* Hence, can the older stat version be dumped safely?
*/
g_assert( (gfi->valid_fields & GNOME_VFS_FILE_INFO_FIELDS_FLAGS) > 0 );
 
if ( (gfi->flags & GNOME_VFS_FILE_FLAGS_SYMLINK) == 0 ) {
FSL_LOG("GnomeVFS Flags: ! SYMLINK in %s", nautilus_file_info_get_uri(file_info));
return NULL;
}
 
item = fsl_menu_item_new(gtk_widget_get_screen(window),
is_file_item,
nautilus_file_info_get_name(file_info));
g_signal_connect(item, "activate", G_CALLBACK(fsl_callback), file_info);
 
return g_list_append(input, item);
}
 
GList *
fsl_get_background_items(NautilusMenuProvider * provider __unused,
GtkWidget * window,
NautilusFileInfo * current_folder)
{
TRACE();
 
if (NULL == current_folder) { // XXX: Does this ever happen?
FSL_LOG1( "No folder selected");
}
return fsl_get_items_impl(window, current_folder, FALSE, NULL);
}
 
 
gboolean file_is_directory (const gpointer const file_data)
{
TRACE();
 
/*
* Apparently type is never GNOME_VFS_FILE_TYPE_SYMBOLIC_LINK and symlinks
* are resolved to the target type
*/
const GnomeVFSFileInfo * const gfi = nautilus_file_info_get_vfs_file_info(file_data);
return gfi->type == GNOME_VFS_FILE_TYPE_DIRECTORY;
}
 
/*
* Bind to the menu if needed
*
*
*/
GList * fsl_get_file_items (NautilusMenuProvider * provider __unused,
GtkWidget * window,
GList * files)
{
TRACE();
 
// Number of files = g_list_length(files)
// Directory = nautilus_file_info_is_directory(files->data)
if (NULL == files) {
FSL_LOG1("No file selected");
return NULL;
}
 
assert( g_list_length(files) > 0 );
 
FSL_LOG_COND( g_list_length(files) > 1, "More than one file selected (%d)", g_list_length(files) );
 
GList * items = NULL;
 
for (int i=0; i<g_list_length(files); ++i) {
const gpointer file_info = g_list_nth_data(files, i);
if (!file_is_directory(file_info)) {
FSL_LOG ( "File %s is not a directory, discarded",
nautilus_file_info_get_name(file_info) );
continue;
}
FSL_LOG( "%s is a directory", nautilus_file_info_get_name(file_info) );
// TODO: Am I loosing memory?
GList * ret = fsl_get_items_impl(window, file_info, TRUE, items);
if (NULL != ret) {
items = ret;
}
}
 
return items;
}
 
/*
* Opens the real path of the symbolic link
*
* file_info: The symbolic link
*/
void fsl_callback (NautilusMenuItem * item __unused, NautilusFileInfo * file_info)
{
TRACE();
 
gchar ** argv;
const GnomeVFSFileInfo * gfi = nautilus_file_info_get_vfs_file_info(file_info);
// See /usr/include/gnome-vfs-2.0/libgnomevfs/gnome-vfs-file-info.h,
// this one is the "realpath()" (3), also it isn't urlencoded
const gchar const * target = gfi->symlink_name;
 
const gchar const * BASE_CMD = "nautilus --no-desktop --no-default-window '%s'";
gchar * command_line = g_malloc( sizeof(gchar) * ( strlen(BASE_CMD) + strlen(target) + 1 ) );
g_sprintf(command_line, BASE_CMD, target);
 
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);
 
// FIXME: const gchar * cwd = nautilus_file_info_get_parent_uri(file_info) + URI_OFFSET;
// TODO: does the cwd used for spawn have any side-effect ?
g_spawn_async( ".",
argv,
NULL,
G_SPAWN_SEARCH_PATH,
NULL, NULL, NULL, NULL);
 
g_free(command_line);
g_strfreev(argv);
}
 
/*
* Creates the new menu item
*
* is_file_item: TRUE if we're working over a (selected) file, FALSE if working
* over a (opened) folder
* base_name: file name, without path, of the given file
*/
NautilusMenuItem * fsl_menu_item_new(GdkScreen *screen __unused,
gboolean is_file_item,
const gchar * base_name)
{
TRACE();
 
NautilusMenuItem *ret;
 
char * name;
char * tooltip;
 
if (is_file_item) {
const gchar * fmt_name = _("Follow symbolic _link '%s'");
const gchar * fmt_tooltip = _("Open the directory pointed by the "
"symbolic link '%s'");
 
name = g_malloc(sizeof(gchar) * (strlen(fmt_name) + strlen(base_name)));
tooltip = g_malloc(sizeof(gchar) * (strlen(fmt_tooltip) + strlen(base_name)));
g_sprintf(name, fmt_name, base_name);
g_sprintf(tooltip, fmt_tooltip, base_name);
}
else {
const gchar * fmt_name = _("Open real path of '%s'");
const gchar * fmt_tooltip = _("Open the real path of the folder "
"pointed by '%s'");
 
name = g_malloc(sizeof(gchar) * (strlen(fmt_name) + strlen(base_name + 1)));
tooltip = g_malloc(sizeof(gchar) * (strlen(fmt_tooltip) + strlen(base_name + 1)));
g_sprintf(name, fmt_name, base_name);
g_sprintf(tooltip, fmt_tooltip, base_name);
}
 
// Trial and error showed that the menu item name must be different
// when various are to be shown, and also that the name should always be
// the same for a given file
static const gchar * const ITEM_NAME_FMT = "FsymlinkExtension::follow_symlink_%s";
gchar * unique_name = g_malloc(strlen(ITEM_NAME_FMT) + strlen(base_name));
g_sprintf(unique_name, ITEM_NAME_FMT, base_name);
// (name, label, tip, icon)
ret = nautilus_menu_item_new(unique_name, name, tooltip, FSL_ICON);
 
g_free(unique_name);
g_free(name);
g_free(tooltip);
 
//g_object_set_data(G_OBJECT(ret), "FsymlinkExtension::screen", screen);
return ret;
}
 
/* vim:set ts=4 et ai: */