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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
/*
* Nautilus
*
* Copyright (C) 1999, 2000 Red Hat, Inc.
* Copyright (C) 2000, 2001 Eazel, Inc.
*
* Nautilus is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* Nautilus 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Authors: Elliot Lee <sopwith@redhat.com>
* Maciej Stachowiak <mjs@eazel.com>
* Darin Adler <darin@eazel.com>
*
*/
/* #define DEBUG_MJS 1 */
/* nautilus-applicable-views.c: Implementation of routines for mapping a location
change request to a set of views and actual URL to be loaded. */
#include <config.h>
#include "nautilus-applicable-views.h"
#include <libgnomevfs/gnome-vfs-result.h>
#include <libnautilus-extensions/nautilus-directory.h>
#include <libnautilus-extensions/nautilus-file.h>
#include <libnautilus-extensions/nautilus-mime-actions.h>
#include <libnautilus-extensions/nautilus-view-identifier.h>
struct NautilusDetermineViewHandle {
NautilusDetermineViewHandle **early_completion_hook;
NautilusDetermineViewCallback callback;
gpointer callback_data;
NautilusFile *file;
NautilusDirectory *directory;
};
static NautilusDetermineViewResult
get_view_result_from_gnome_vfs_result (GnomeVFSResult gnome_vfs_result)
{
switch (gnome_vfs_result) {
case GNOME_VFS_OK:
return NAUTILUS_DETERMINE_VIEW_OK;
case GNOME_VFS_ERROR_NOT_FOUND:
return NAUTILUS_DETERMINE_VIEW_NOT_FOUND;
case GNOME_VFS_ERROR_INVALID_URI:
return NAUTILUS_DETERMINE_VIEW_INVALID_URI;
case GNOME_VFS_ERROR_NOT_SUPPORTED:
return NAUTILUS_DETERMINE_VIEW_UNSUPPORTED_SCHEME;
case GNOME_VFS_ERROR_LOGIN_FAILED:
return NAUTILUS_DETERMINE_VIEW_LOGIN_FAILED;
case GNOME_VFS_ERROR_SERVICE_NOT_AVAILABLE:
return NAUTILUS_DETERMINE_VIEW_SERVICE_NOT_AVAILABLE;
case GNOME_VFS_ERROR_ACCESS_DENIED:
return NAUTILUS_DETERMINE_VIEW_ACCESS_DENIED;
case GNOME_VFS_ERROR_HOST_NOT_FOUND:
return NAUTILUS_DETERMINE_VIEW_HOST_NOT_FOUND;
case GNOME_VFS_ERROR_HOST_HAS_NO_ADDRESS:
return NAUTILUS_DETERMINE_VIEW_HOST_HAS_NO_ADDRESS;
case GNOME_VFS_ERROR_GENERIC:
case GNOME_VFS_ERROR_INTERNAL:
/* These two have occurred at least once in the web browser component */
return NAUTILUS_DETERMINE_VIEW_UNSPECIFIC_ERROR;
default:
/* Whenever this message fires, we should consider adding a specific case
* to make the error as comprehensible as possible to the user. Please
* bug me (sullivan@eazel.com) if you see this fire and don't have the
* inclination to immediately make a good message yourself (tell me
* what GnomeVFSResult code the message reported, and what caused it to
* fire).
*/
g_warning ("in nautilus-applicable-views.c, got unhandled GnomeVFSResult %d (%s). "
"If this is a legitimate get_file_info result, please tell "
"sullivan@eazel.com so he can "
"write a decent user-level error message for it.",
gnome_vfs_result,
gnome_vfs_result_to_string (gnome_vfs_result));
return NAUTILUS_DETERMINE_VIEW_UNSPECIFIC_ERROR;
}
}
static void
got_file_info_callback (NautilusFile *file,
gpointer callback_data)
{
NautilusDetermineViewHandle *handle;
GnomeVFSResult vfs_result_code;
NautilusDetermineViewResult result_code;
NautilusViewIdentifier *default_id;
OAF_ServerInfo *default_component;
handle = (NautilusDetermineViewHandle *) callback_data;
g_assert (handle->file == file);
default_id = NULL;
vfs_result_code = nautilus_file_get_file_info_result (file);
if (vfs_result_code == GNOME_VFS_OK
|| vfs_result_code == GNOME_VFS_ERROR_NOT_SUPPORTED
|| vfs_result_code == GNOME_VFS_ERROR_INVALID_URI) {
default_component = nautilus_mime_get_default_component_for_file (handle->file);
if (default_component != NULL) {
default_id = nautilus_view_identifier_new_from_content_view (default_component);
CORBA_free (default_component);
if (default_id != NULL) {
vfs_result_code = GNOME_VFS_OK;
}
}
}
if (vfs_result_code == GNOME_VFS_OK && default_id == NULL) {
/* If the complete list is non-empty, the default shouldn't have been NULL */
g_assert (!nautilus_mime_has_any_components_for_file (handle->file));
result_code = NAUTILUS_DETERMINE_VIEW_NO_HANDLER_FOR_TYPE;
} else {
result_code = get_view_result_from_gnome_vfs_result (vfs_result_code);
}
(* handle->callback) (handle,
result_code,
default_id,
handle->callback_data);
nautilus_view_identifier_free (default_id);
nautilus_determine_initial_view_cancel (handle);
}
static void
got_minimum_file_info_callback (NautilusFile *file,
gpointer callback_data)
{
NautilusDetermineViewHandle *handle;
GList *attributes;
handle = (NautilusDetermineViewHandle *) callback_data;
g_assert (handle->file == file);
/* We start monitoring files here so we get a single load of
* the directory instead of multiple ones. The concept is that
* our load of the directory is shared both with the
* possible call_when_ready below and with other stuff needed by
* components.
*/
nautilus_directory_file_monitor_add (handle->directory, handle,
TRUE, TRUE, NULL, FALSE);
if (nautilus_mime_actions_file_needs_full_file_attributes (file)
&& nautilus_file_get_file_info_result (file) == GNOME_VFS_OK) {
attributes = nautilus_mime_actions_get_full_file_attributes ();
nautilus_file_call_when_ready (file, attributes,
got_file_info_callback,
handle);
g_list_free (attributes);
} else {
got_file_info_callback (file, handle);
}
}
NautilusDetermineViewHandle *
nautilus_determine_initial_view (const char *location,
NautilusDetermineViewCallback callback,
gpointer callback_data)
{
NautilusDetermineViewHandle *handle;
GList *attributes;
g_return_val_if_fail (location != NULL, NULL);
g_return_val_if_fail (callback != NULL, NULL);
handle = g_new0 (NautilusDetermineViewHandle, 1);
handle->early_completion_hook = &handle;
handle->callback = callback;
handle->callback_data = callback_data;
handle->file = nautilus_file_get (location);
handle->directory = nautilus_directory_get (location);
attributes = nautilus_mime_actions_get_minimum_file_attributes ();
nautilus_file_call_when_ready (handle->file, attributes,
got_minimum_file_info_callback, handle);
g_list_free (attributes);
if (handle != NULL) {
handle->early_completion_hook = NULL;
}
return handle;
}
void
nautilus_determine_initial_view_cancel (NautilusDetermineViewHandle *handle)
{
g_return_if_fail (handle != NULL);
g_return_if_fail (handle->early_completion_hook == NULL
|| *handle->early_completion_hook == handle);
g_return_if_fail (handle->callback != NULL);
if (handle->early_completion_hook != NULL) {
*handle->early_completion_hook = NULL;
}
nautilus_file_cancel_call_when_ready
(handle->file, got_minimum_file_info_callback, handle);
nautilus_file_cancel_call_when_ready
(handle->file, got_file_info_callback, handle);
nautilus_directory_file_monitor_remove
(handle->directory, handle);
nautilus_file_unref (handle->file);
nautilus_directory_unref (handle->directory);
g_free (handle);
}
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