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/*
This file is part of GNUnet.
(C) 2010, 2011, 2012 Christian Grothoff (and other contributing authors)
GNUnet 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 3, or (at your
option) any later version.
GNUnet 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 GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file src/fs/gnunet-fs-gtk_download-save-as.c
* @brief functions for managing the 'save as' dialog
* @author Christian Grothoff
*/
#include "gnunet-fs-gtk_download-save-as.h"
#include "gnunet-fs-gtk.h"
#include "gnunet-fs-gtk_event-handler.h"
/**
* State for a 'save as' dialog of a download.
*/
struct DownloadAsDialogContext
{
/**
* Download entry for which this dialog determines the
* filename (and other options).
*/
struct DownloadEntry *de;
/**
* Builder for the dialog.
*/
GtkBuilder *builder;
/**
* Main dialog object.
*/
GtkWidget *dialog;
/**
* Name of the directory that should be unlinked if the operation is aborted,
* can be NULL.
*/
char *dirname;
/**
* Set to GNUNET_YES if pressing "Save" button should initiate the download
* right away, set to GNUNET_NO if it should only change directory and file
* names on the download panel.
* Popup menu sets it to GNUNET_YES, download panel "Change name" button sets
* it to GNUNET_NO.
*/
int download_directly;
};
/**
* Clean up the given DLC context, including possibly removing
* the left-over (empty) directory.
*
* @param dlc context to clean up
*/
static void
clean_up_download_as_context (struct DownloadAsDialogContext *dlc)
{
g_object_unref (G_OBJECT (dlc->builder));
if (NULL != dlc->dirname)
{
if (0 != RMDIR (dlc->dirname))
GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "rmdir", dlc->dirname);
GNUNET_free (dlc->dirname);
}
GNUNET_free (dlc);
}
/**
* Free resources associated with the given download entry.
*
* @param de context to free
*/
void
GNUNET_FS_GTK_free_download_entry (struct DownloadEntry *de)
{
GNUNET_assert (NULL == de->dc);
if (NULL != de->sr)
{
GNUNET_assert (de->sr->download == de);
de->sr->download = NULL;
de->sr = NULL;
}
GNUNET_free_non_null (de->filename);
GNUNET_FS_uri_destroy (de->uri);
GNUNET_free (de);
}
/**
* The 'save_as' dialog is being deleted. Clean up.
*
* @param widget the dialog object
* @param event the deletion event
* @param user_data the 'structDownloadAsDialogContext' of the dialog
* @return always FALSE (destroy the window)
*/
gboolean
GNUNET_GTK_save_as_dialog_delete_event_cb (GtkWidget * widget, GdkEvent * event,
gpointer user_data)
{
struct DownloadAsDialogContext *dlc = user_data;
GNUNET_FS_GTK_free_download_entry (dlc->de);
clean_up_download_as_context (dlc);
return FALSE;
}
/**
* The user clicked on the 'save as' button of the dialog.
* Delete the window and start the download.
*
* @param dialog the dialog object
* @param response_id response_id associated with the button
* @param user_data the 'structDownloadAsDialogContext' of the dialog
*/
void
GNUNET_GTK_save_as_dialog_response_cb (GtkDialog * dialog,
gint response_id,
gpointer user_data)
{
struct DownloadAsDialogContext *dlc = user_data;
struct DownloadEntry *de;
GtkToggleButton *cb;
de = dlc->de;
if (GTK_RESPONSE_OK != response_id)
{
GNUNET_FS_GTK_free_download_entry (de);
gtk_widget_destroy (GTK_WIDGET (dialog));
clean_up_download_as_context (dlc);
return;
}
GNUNET_free_non_null (de->filename);
de->filename =
GNUNET_GTK_filechooser_get_filename_utf8 (GTK_FILE_CHOOSER (dlc->dialog));
cb = GTK_TOGGLE_BUTTON (gtk_builder_get_object
(dlc->builder, "GNUNET_GTK_save_as_recursive_check_button"));
if (dlc->download_directly)
{
de->is_recursive =
(TRUE ==
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (cb))) ? GNUNET_YES :
GNUNET_NO;
de->anonymity =
(uint32_t) gtk_spin_button_get_value (GTK_SPIN_BUTTON
(gtk_builder_get_object
(dlc->builder,
"GNUNET_GTK_save_as_dialog_anonymity_spin_button")));
}
gtk_widget_destroy (GTK_WIDGET (dialog));
if (dlc->download_directly)
GNUNET_FS_GTK_download_context_start_download (de);
else if (de->sr != NULL && de->sr->tab != NULL && de->sr->rr != NULL)
{
/* Update download panel */
GNUNET_FS_GTK_set_item_downloaded_name (de->sr->tab->ts, de->sr->rr, de->filename);
GNUNET_FS_GTK_free_download_entry (de);
}
/* we were successful, do not remove the directory (if we created one) */
GNUNET_free_non_null (dlc->dirname);
dlc->dirname = NULL;
clean_up_download_as_context (dlc);
}
/* FIXME: implement handling for corner cases:
* A) Selection changes in search tab while SaveAs dialog is open.
* If it's in direct download mode, ignore that; otherwise destroy the dialog.
* B) Download! is pressed in download panel (or the search result is otherwise
* being downloaded without using saveas dialog) while SaveAs dialog is open.
* Destroy SaveAs dialog.
*/
static void
open_saveas_dialog (struct DownloadEntry *de, int download_directly)
{
struct DownloadAsDialogContext *dlc;
GtkWidget *cb;
GtkWidget *hb;
dlc = GNUNET_new (struct DownloadAsDialogContext);
dlc->de = de;
dlc->download_directly = download_directly;
dlc->builder =
GNUNET_GTK_get_new_builder ("gnunet_fs_gtk_download_as_dialog.glade",
dlc);
if (NULL == dlc->builder)
{
GNUNET_break (0);
GNUNET_FS_GTK_free_download_entry (de);
GNUNET_free (dlc);
return;
}
dlc->dialog = GTK_WIDGET (gtk_builder_get_object
(dlc->builder, "GNUNET_GTK_save_as_dialog"));
/* Enable recursive button for directories and
set recursive 'default' value based on what the 'dc' tells us */
cb = GTK_WIDGET (gtk_builder_get_object
(dlc->builder, "GNUNET_GTK_save_as_recursive_check_button"));
hb = GTK_WIDGET (gtk_builder_get_object (dlc->builder, "GNUNET_GTK_save_as_dialog_options_hbox"));
if (download_directly)
{
if (GNUNET_YES == de->is_directory)
gtk_widget_set_sensitive (cb, TRUE);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (cb),
de->is_recursive);
gtk_widget_show (hb);
}
else
{
gtk_widget_hide (hb);
}
/* initialize filename based on filename from 'dc' */
if (NULL != de->filename)
{
char *dirname;
char *basename;
struct stat sbuf;
dirname = GNUNET_strdup (de->filename);
basename = (char *) GNUNET_STRINGS_get_short_name (dirname);
/* basename now points into 'dirname'; cut 'dirname' off at the '/' before basename */
if (basename > dirname)
basename[-1] = '\0';
if (0 != STAT (dirname, &sbuf))
{
if (GNUNET_OK != GNUNET_DISK_directory_create (dirname))
{
GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "mkdir", dirname);
}
else
{
dlc->dirname = dirname;
}
}
gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dlc->dialog), dirname);
gtk_file_chooser_set_current_name (GTK_FILE_CHOOSER (dlc->dialog), basename);
if (NULL == dlc->dirname)
GNUNET_free (dirname);
}
gtk_dialog_set_default_response (GTK_DIALOG (dlc->dialog),
GTK_RESPONSE_OK);
gtk_window_present (GTK_WINDOW (dlc->dialog));
}
/**
* Open the 'save as' dialog for a download. Calls the 'dc->cb'
* continutation when the dialog is complete. Will release the 'dc'
* resources if the dialog is cancelled.
* Pressing 'Save' button will initiate the download.
*
* @param de download context for the file/directory
*/
void
GNUNET_FS_GTK_open_download_as_dialog (struct DownloadEntry *de)
{
open_saveas_dialog (de, GNUNET_YES);
}
/**
* Open the 'save as' dialog for a download. Calls the 'dc->cb'
* continutation when the dialog is complete. Will release the 'dc'
* resources if the dialog is cancelled.
* Pressing 'Save' button will change selected directory and
* file name in download panel, but will not initiate the download.
*
* @param de download context for the file/directory
*/
void
GNUNET_FS_GTK_open_change_download_name_dialog (struct DownloadEntry *de)
{
open_saveas_dialog (de, GNUNET_NO);
}
/**
* Actually start the download that is specified by the given download
* context and its options. Will add a download entry to the
* respective tree model and trigger a start of the download using the
* FS-API.
*
* @param de download context of the download to execute
*/
void
GNUNET_FS_GTK_download_context_start_download (struct DownloadEntry *de)
{
enum GNUNET_FS_DownloadOptions opt;
struct GNUNET_FS_Handle *fs;
uint64_t len;
fs = GNUNET_FS_GTK_get_fs_handle ();
opt = GNUNET_FS_DOWNLOAD_OPTION_NONE;
if (de->is_recursive)
opt |= GNUNET_FS_DOWNLOAD_OPTION_RECURSIVE;
len = GNUNET_FS_uri_chk_get_file_size (de->uri);
if ((NULL != de->sr) && (NULL != de->sr->result))
{
GNUNET_break (NULL !=
GNUNET_FS_download_start_from_search (fs,
de->sr->result,
de->filename,
NULL /* tempname */ ,
0 /* offset */ ,
len,
de->anonymity, opt,
de));
}
else
{
GNUNET_break (NULL !=
GNUNET_FS_download_start (fs,
de->uri,
NULL /* meta data */,
de->filename, NULL /* tempname */ ,
0 /* offset */ ,
len,
de->anonymity, opt,
de,
(NULL != de->pde) ? de->pde->dc : NULL));
}
}
/* end of gnunet-fs-gtk-download.c */
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