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|
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* nautilus-program-choosing.c - functions for selecting and activating
programs for opening/viewing particular files.
Copyright (C) 2000 Eazel, Inc.
The Gnome Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The Gnome 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the Gnome 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.
Author: John Sullivan <sullivan@eazel.com>
*/
#include <config.h>
#include "nautilus-program-choosing.h"
#include "nautilus-mime-actions.h"
#include "nautilus-program-chooser.h"
#include "nautilus-global-preferences.h"
#include <eel/eel-glib-extensions.h>
#include <eel/eel-gnome-extensions.h>
#include <eel/eel-vfs-extensions.h>
#include <eel/eel-stock-dialogs.h>
#include <eel/eel-preferences.h>
#include <eel/eel-string.h>
#include <gtk/gtk.h>
#include <libgnome/gnome-config.h>
#include <libgnome/gnome-i18n.h>
#include <libgnome/gnome-util.h>
#include <libgnome/gnome-desktop-item.h>
#include <libgnomeui/gnome-uidefs.h>
#include <libgnomevfs/gnome-vfs-mime-handlers.h>
#include <libgnomevfs/gnome-vfs-utils.h>
#include <stdlib.h>
typedef struct {
NautilusFile *file;
GtkWindow *parent_window;
NautilusApplicationChoiceCallback callback;
gpointer callback_data;
} ChooseApplicationCallbackData;
typedef struct {
NautilusFile *file;
GtkWindow *parent_window;
NautilusComponentChoiceCallback callback;
gpointer callback_data;
} ChooseComponentCallbackData;
static GHashTable *choose_application_hash_table, *choose_component_hash_table;
static guint
choose_application_hash (gconstpointer p)
{
const ChooseApplicationCallbackData *data;
data = p;
return GPOINTER_TO_UINT (data->file)
^ GPOINTER_TO_UINT (data->callback)
^ GPOINTER_TO_UINT (data->callback_data);
}
static gboolean
choose_application_equal (gconstpointer a,
gconstpointer b)
{
const ChooseApplicationCallbackData *data_a, *data_b;
data_a = a;
data_b = a;
return data_a->file == data_b->file
&& data_a->callback == data_b->callback
&& data_a->callback_data == data_b->callback_data;
}
static void
choose_application_destroy (ChooseApplicationCallbackData *choose_data)
{
nautilus_file_unref (choose_data->file);
if (choose_data->parent_window != NULL) {
g_object_unref (choose_data->parent_window);
}
g_free (choose_data);
}
static guint
choose_component_hash (gconstpointer p)
{
const ChooseApplicationCallbackData *data;
data = p;
return GPOINTER_TO_UINT (data->file)
^ GPOINTER_TO_UINT (data->callback)
^ GPOINTER_TO_UINT (data->callback_data);
}
static gboolean
choose_component_equal (gconstpointer a,
gconstpointer b)
{
const ChooseApplicationCallbackData *data_a, *data_b;
data_a = a;
data_b = a;
return data_a->file == data_b->file
&& data_a->callback == data_b->callback
&& data_a->callback_data == data_b->callback_data;
}
static void
choose_component_destroy (ChooseComponentCallbackData *choose_data)
{
nautilus_file_unref (choose_data->file);
if (choose_data->parent_window != NULL) {
g_object_unref (choose_data->parent_window);
}
g_free (choose_data);
}
/**
* set_up_program_chooser:
*
* Create but don't yet run a program-choosing dialog.
* The caller should run the dialog and destroy it.
*
* @file: Which NautilusFile programs are being chosen for.
* @type: Which type of program is being chosen.
* @parent: Optional window to parent the dialog on.
*
* Return value: The program-choosing dialog, ready to be run.
*/
static GtkWidget *
set_up_program_chooser (NautilusFile *file,
GnomeVFSMimeActionType type,
GtkWindow *parent)
{
GtkWidget *dialog;
g_assert (NAUTILUS_IS_FILE (file));
dialog = nautilus_program_chooser_new (type, file);
if (parent != NULL) {
gtk_window_set_transient_for (GTK_WINDOW (dialog), parent);
}
return dialog;
}
/**
* nautilus_choose_component_for_file:
*
* Lets user choose a component with which to view a given file.
*
* @file: The NautilusFile to be viewed.
* @parent_window: If supplied, the component-choosing dialog is parented
* on this window.
* @callback: Callback called when choice has been made.
* @callback_data: Parameter passed back when callback is called.
*/
static void
choose_component_callback (NautilusFile *file,
gpointer callback_data)
{
ChooseComponentCallbackData *choose_data;
NautilusViewIdentifier *identifier;
GtkWidget *dialog;
choose_data = callback_data;
/* Remove from the hash table. */
g_assert (g_hash_table_lookup (choose_component_hash_table,
choose_data) == choose_data);
g_hash_table_remove (choose_component_hash_table,
choose_data);
/* The API uses a callback so we can do this non-modally in the future,
* but for now we just use a modal dialog.
*/
identifier = NULL;
dialog = NULL;
if (nautilus_mime_has_any_components_for_file (file)) {
dialog = set_up_program_chooser (file, GNOME_VFS_MIME_ACTION_TYPE_COMPONENT,
choose_data->parent_window);
if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK) {
identifier = nautilus_program_chooser_get_component (NAUTILUS_PROGRAM_CHOOSER (dialog));
}
} else {
nautilus_program_chooser_show_no_choices_message (GNOME_VFS_MIME_ACTION_TYPE_COMPONENT,
file,
choose_data->parent_window);
}
/* Call callback even if identifier is NULL, so caller can
* free callback_data if necessary and present some cancel UI
* if desired.
*/
(* choose_data->callback) (identifier, choose_data->callback_data);
if (dialog != NULL) {
/* Destroy only after callback, since view identifier will
* be destroyed too.
*/
gtk_widget_destroy (GTK_WIDGET (dialog));
}
choose_component_destroy (choose_data);
}
void
nautilus_choose_component_for_file (NautilusFile *file,
GtkWindow *parent_window,
NautilusComponentChoiceCallback callback,
gpointer callback_data)
{
ChooseComponentCallbackData *choose_data;
GList *attributes;
g_return_if_fail (NAUTILUS_IS_FILE (file));
g_return_if_fail (parent_window == NULL || GTK_IS_WINDOW (parent_window));
g_return_if_fail (callback != NULL);
/* Grab refs to the objects so they will still be around at
* callback time.
*/
nautilus_file_ref (file);
if (parent_window != NULL) {
g_object_ref (parent_window);
}
/* Create data to pass through. */
choose_data = g_new (ChooseComponentCallbackData, 1);
choose_data->file = file;
choose_data->parent_window = parent_window;
choose_data->callback = callback;
choose_data->callback_data = callback_data;
/* Put pending entry into choose hash table. */
if (choose_component_hash_table == NULL) {
choose_component_hash_table = eel_g_hash_table_new_free_at_exit
(choose_component_hash,
choose_component_equal,
"choose component");
}
g_hash_table_insert (choose_component_hash_table,
choose_data, choose_data);
/* Do the rest of the work when the attributes are ready. */
attributes = nautilus_mime_actions_get_full_file_attributes ();
nautilus_file_call_when_ready (file,
attributes,
choose_component_callback,
choose_data);
g_list_free (attributes);
}
void
nautilus_cancel_choose_component_for_file (NautilusFile *file,
NautilusComponentChoiceCallback callback,
gpointer callback_data)
{
ChooseComponentCallbackData search_criteria;
ChooseComponentCallbackData *choose_data;
if (choose_component_hash_table == NULL) {
return;
}
/* Search for an existing choose in progress. */
search_criteria.file = file;
search_criteria.callback = callback;
search_criteria.callback_data = callback_data;
choose_data = g_hash_table_lookup (choose_component_hash_table,
&search_criteria);
if (choose_data == NULL) {
return;
}
/* Stop it. */
g_hash_table_remove (choose_component_hash_table,
choose_data);
nautilus_file_cancel_call_when_ready (file,
choose_component_callback,
choose_data);
choose_component_destroy (choose_data);
}
/**
* nautilus_choose_application_for_file:
*
* Lets user choose an application with which to open a given file.
*
* @file: The NautilusFile to be viewed.
* @parent_window: If supplied, the application-choosing dialog is parented
* on this window.
* @callback: Callback called when choice has been made.
* @callback_data: Parameter passed back when callback is called.
*/
static void
choose_application_callback (NautilusFile *file,
gpointer callback_data)
{
ChooseApplicationCallbackData *choose_data;
GtkWidget *dialog;
GnomeVFSMimeApplication *application;
choose_data = callback_data;
/* Remove from the hash table. */
g_assert (g_hash_table_lookup (choose_application_hash_table,
choose_data) == choose_data);
g_hash_table_remove (choose_application_hash_table,
choose_data);
/* The API uses a callback so we can do this non-modally in the future,
* but for now we just use a modal dialog.
*/
application = NULL;
dialog = NULL;
if (nautilus_mime_has_any_applications_for_file_type (file)) {
dialog = set_up_program_chooser (file, GNOME_VFS_MIME_ACTION_TYPE_APPLICATION,
choose_data->parent_window);
if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK) {
application = nautilus_program_chooser_get_application (NAUTILUS_PROGRAM_CHOOSER (dialog));
}
} else {
nautilus_program_chooser_show_no_choices_message (GNOME_VFS_MIME_ACTION_TYPE_APPLICATION,
file,
choose_data->parent_window);
}
/* Call callback even if identifier is NULL, so caller can
* free callback_data if necessary and present some cancel
* UI if desired.
*/
(* choose_data->callback) (application, choose_data->callback_data);
if (dialog != NULL) {
/* Destroy only after callback, since application struct will
* be destroyed too.
*/
gtk_widget_destroy (GTK_WIDGET (dialog));
}
choose_application_destroy (choose_data);
}
void
nautilus_choose_application_for_file (NautilusFile *file,
GtkWindow *parent_window,
NautilusApplicationChoiceCallback callback,
gpointer callback_data)
{
ChooseApplicationCallbackData *choose_data;
GList *attributes;
g_return_if_fail (NAUTILUS_IS_FILE (file));
g_return_if_fail (parent_window == NULL || GTK_IS_WINDOW (parent_window));
g_return_if_fail (callback != NULL);
/* Grab refs to the objects so they will still be around at
* callback time.
*/
nautilus_file_ref (file);
if (parent_window != NULL) {
g_object_ref (parent_window);
}
/* Create data to pass through. */
choose_data = g_new (ChooseApplicationCallbackData, 1);
choose_data->file = file;
choose_data->parent_window = parent_window;
choose_data->callback = callback;
choose_data->callback_data = callback_data;
/* Put pending entry into choose hash table. */
if (choose_application_hash_table == NULL) {
choose_application_hash_table = eel_g_hash_table_new_free_at_exit
(choose_application_hash,
choose_application_equal,
"choose application");
}
g_hash_table_insert (choose_application_hash_table,
choose_data, choose_data);
/* Do the rest of the work when the attributes are ready. */
attributes = nautilus_mime_actions_get_full_file_attributes ();
nautilus_file_call_when_ready (file,
attributes,
choose_application_callback,
choose_data);
g_list_free (attributes);
}
typedef struct {
NautilusFile *file;
GtkWindow *parent_window;
} LaunchParameters;
static LaunchParameters *
launch_parameters_new (NautilusFile *file,
GtkWindow *parent_window)
{
LaunchParameters *launch_parameters;
launch_parameters = g_new0 (LaunchParameters, 1);
nautilus_file_ref (file);
launch_parameters->file = file;
g_object_ref (parent_window);
launch_parameters->parent_window = parent_window;
return launch_parameters;
}
static void
launch_parameters_free (LaunchParameters *launch_parameters)
{
g_assert (launch_parameters != NULL);
nautilus_file_unref (launch_parameters->file);
g_object_unref (launch_parameters->parent_window);
g_free (launch_parameters);
}
static void
launch_application_callback (GnomeVFSMimeApplication *application,
gpointer callback_data)
{
LaunchParameters *launch_parameters;
g_assert (callback_data != NULL);
launch_parameters = (LaunchParameters *) callback_data;
if (application != NULL) {
g_assert (NAUTILUS_IS_FILE (launch_parameters->file));
nautilus_launch_application (application,
launch_parameters->file,
launch_parameters->parent_window);
}
launch_parameters_free (launch_parameters);
}
/**
* application_cannot_open_location
*
* Handle the case where an application has been selected to be launched,
* and it cannot handle the current uri scheme. This can happen
* because the default application for a file type may not be able
* to handle some kinds of locations. We want to tell users that their
* default application doesn't work here, rather than switching off to
* a different one without them noticing.
*
* @application: The application that was to be launched.
* @file: The file whose location was passed as a parameter to the application
* @parent_window: A window to use as the parent for any error dialogs.
* */
static void
application_cannot_open_location (GnomeVFSMimeApplication *application,
NautilusFile *file,
const char *uri_scheme,
GtkWindow *parent_window)
{
GtkDialog *message_dialog;
LaunchParameters *launch_parameters;
char *message;
char *file_name;
int response;
file_name = nautilus_file_get_display_name (file);
if (nautilus_mime_has_any_applications_for_file (file)) {
message = g_strdup_printf (_("\"%s\" can't open \"%s\" because \"%s\" can't access files at \"%s\" "
"locations. Would you like to choose another application?"),
application->name, file_name,
application->name, uri_scheme);
message_dialog = eel_show_yes_no_dialog (message,
_("Can't Open Location"),
GTK_STOCK_OK,
GTK_STOCK_CANCEL,
parent_window);
response = gtk_dialog_run (message_dialog);
gtk_object_destroy (GTK_OBJECT (message_dialog));
if (response == GTK_RESPONSE_YES) {
launch_parameters = launch_parameters_new (file, parent_window);
nautilus_choose_application_for_file
(file,
parent_window,
launch_application_callback,
launch_parameters);
}
}
else {
message = g_strdup_printf (_("\"%s\" can't open \"%s\" because \"%s\" can't access files at \"%s\" "
"locations. No other applications are available to view this file. "
"If you copy this file onto your computer, you may be able to open "
"it."), application->name, file_name,
application->name, uri_scheme);
eel_show_info_dialog (message, _("Can't Open Location"), parent_window);
}
g_free (file_name);
g_free (message);
}
/**
* nautilus_launch_application:
*
* Fork off a process to launch an application with a given file as a
* parameter. Provide a parent window for error dialogs.
*
* @application: The application to be launched.
* @file: The file whose location should be passed as a parameter to the application
* @parent_window: A window to use as the parent for any error dialogs.
*/
void
nautilus_launch_application (GnomeVFSMimeApplication *application,
NautilusFile *file,
GtkWindow *parent_window)
{
char *parameter;
char *uri_scheme, *uri;
uri_scheme = nautilus_file_get_uri_scheme (file);
/* If the program can open URIs, always use a URI. This
* prevents any possible ambiguity for cases where a path
* would looks like a URI.
*/
if (application->expects_uris == GNOME_VFS_MIME_APPLICATION_ARGUMENT_TYPE_URIS ||
((application->expects_uris == GNOME_VFS_MIME_APPLICATION_ARGUMENT_TYPE_URIS_FOR_NON_FILES) &&
eel_strcasecmp (uri_scheme, "file") != 0)) {
/* Check to be sure that the application also supports this particular URI scheme */
if (g_list_find_custom (application->supported_uri_schemes,
uri_scheme,
eel_strcmp_compare_func) == NULL) {
application_cannot_open_location (application,
file,
uri_scheme,
parent_window);
g_free (uri_scheme);
return;
}
parameter = nautilus_file_get_uri (file);
} else {
uri = nautilus_file_get_uri (file);
parameter = gnome_vfs_get_local_path_from_uri (uri);
g_free (uri);
if (parameter == NULL) {
/* This application can't deal with this URI,
* because it can only handle local
* files. Tell user. Some day we could offer
* to copy it locally for the user, if we knew
* where to put it, and who would delete it
* when done.
*/
application_cannot_open_location (application,
file,
uri_scheme,
parent_window);
g_free (uri_scheme);
return;
}
}
g_free (uri_scheme);
nautilus_launch_application_from_command (application->name,
application->command,
parameter,
application->requires_terminal);
g_free (parameter);
}
/**
* nautilus_launch_application_from_command:
*
* Fork off a process to launch an application with a given uri as
* a parameter.
*
* @command_string: The application to be launched, with any desired
* command-line options.
* @parameter: Passed as a parameter to the application as is.
*/
void
nautilus_launch_application_from_command (const char *name,
const char *command_string,
const char *parameter,
gboolean use_terminal)
{
char *full_command;
char *quoted_parameter;
if (parameter != NULL) {
quoted_parameter = g_shell_quote (parameter);
full_command = g_strconcat (command_string, " ", quoted_parameter, NULL);
g_free (quoted_parameter);
} else {
full_command = g_strdup (command_string);
}
if (use_terminal) {
eel_gnome_open_terminal (full_command);
} else {
eel_gnome_shell_execute (full_command);
}
g_free (full_command);
}
void
nautilus_launch_desktop_file (const char *desktop_file_uri,
const GList *parameter_uris,
GtkWindow *parent_window)
{
GError *error;
GnomeDesktopItem *ditem;
const char *command_string;
char *local_path, *message;
const GList *p;
int total, count;
/* strip the leading command specifier */
if (eel_str_has_prefix (desktop_file_uri, NAUTILUS_DESKTOP_COMMAND_SPECIFIER)) {
desktop_file_uri += strlen (NAUTILUS_DESKTOP_COMMAND_SPECIFIER);
}
/* Don't allow command execution from remote locations where the
* uri scheme isn't file:// (This is because files on for example
* nfs are treated as remote) to partially mitigate the security
* risk of executing arbitrary commands.
*/
if (!eel_vfs_has_capability (desktop_file_uri,
EEL_VFS_CAPABILITY_SAFE_TO_EXECUTE)) {
eel_show_error_dialog
(_("Sorry, but you can't execute commands from "
"a remote site due to security considerations."),
_("Can't execute remote links"),
parent_window);
return;
}
error = NULL;
ditem = gnome_desktop_item_new_from_uri (desktop_file_uri,
GNOME_DESKTOP_ITEM_LOAD_ONLY_IF_EXISTS,
&error);
if (error != NULL) {
message = g_strconcat (_("There was an error launching the application.\n\n"
"Details: "), error->message, NULL);
eel_show_error_dialog
(message,
_("Error launching application"),
parent_window);
g_error_free (error);
g_free (message);
return;
}
/* check if this app only supports local files */
command_string = gnome_desktop_item_get_string (ditem, GNOME_DESKTOP_ITEM_EXEC);
if ((strstr (command_string, "%F") || strstr (command_string, "%f"))
&& !(strstr (command_string, "%U") || strstr (command_string, "%u"))
&& parameter_uris != NULL) {
/* count the number of uris with local paths */
count = 0;
total = g_list_length ((GList *) parameter_uris);
for (p = parameter_uris; p != NULL; p = p->next) {
local_path = gnome_vfs_get_local_path_from_uri ((const char *) p->data);
if (local_path != NULL) {
g_free (local_path);
count++;
}
}
if (count == 0) {
/* all files are non-local */
eel_show_error_dialog
(_("This drop target only supports local files.\n\n"
"To open non-local files copy them to a local folder and then"
" drop them again."),
_("Drop target only supports local files"),
parent_window);
gnome_desktop_item_unref (ditem);
return;
} else if (count != total) {
/* some files were non-local */
eel_show_warning_dialog
(_("This drop target only supports local files.\n\n"
"To open non-local files copy them to a local folder and then"
" drop them again. The local files you dropped have already been opened."),
_("Drop target only supports local files"),
parent_window);
}
}
error = NULL;
gnome_desktop_item_launch (ditem, (GList *) parameter_uris,
GNOME_DESKTOP_ITEM_LAUNCH_APPEND_URIS,
&error);
if (error != NULL) {
message = g_strconcat (_("There was an error launching the application.\n\n"
"Details: "), error->message, NULL);
eel_show_error_dialog
(message,
_("Error launching application"),
parent_window);
g_error_free (error);
g_free (message);
}
gnome_desktop_item_unref (ditem);
}
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