evolution/shell/e-shell-folder-commands.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-shell-folder-commands.h
 *
 * Copyright (C) 2001  Ximian, Inc.
 *
 * This program 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.
 *
 * This program 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., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Author: Ettore Perazzoli
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "e-shell-folder-commands.h"

#include <gal/widgets/e-gui-utils.h>
#include <gal/widgets/e-unicode.h>

#include <libgnome/gnome-i18n.h>
#include <libgnome/gnome-util.h>
#include <libgnomeui/gnome-dialog.h>
#include <libgnomeui/gnome-stock.h>

#include <gtk/gtklabel.h>
#include <gtk/gtksignal.h>

#include "e-shell-constants.h"
#include "e-shell-folder-creation-dialog.h"
#include "e-shell-folder-selection-dialog.h"


/* Utility functions.  */

static const char *
get_folder_name (EShell *shell,
		 const char *path)
{
	EStorageSet *storage_set;
	EFolder *folder;

	storage_set = e_shell_get_storage_set (shell);
	folder = e_storage_set_get_folder (storage_set, path);

	return e_folder_get_name (folder);
}


/* The data passed to the signals handled during the execution of the folder
   commands.  */

enum _FolderCommand {
	FOLDER_COMMAND_COPY,
	FOLDER_COMMAND_MOVE
};
typedef enum _FolderCommand FolderCommand;

struct _FolderCommandData {
	EShell *shell;
	EShellView *shell_view;
	FolderCommand command;
	char *source_path;
	char *destination_path;
};
typedef struct _FolderCommandData FolderCommandData;

static FolderCommandData *
folder_command_data_new (EShell *shell,
			 EShellView *shell_view,
			 FolderCommand command,
			 const char *source_path,
			 const char *destination_path)
{
	FolderCommandData *new;

	new = g_new (FolderCommandData, 1);
	new->shell            = shell;
	new->shell_view       = shell_view;
	new->command          = command;
	new->source_path      = g_strdup (source_path);
	new->destination_path = g_strdup (destination_path);

	return new;
}

static void
folder_command_data_free (FolderCommandData *folder_command_data)
{
	g_free (folder_command_data->source_path);
	g_free (folder_command_data->destination_path);

	g_free (folder_command_data);
}


/* Callback for the storage result.  */

static void
xfer_result_callback (EStorageSet *storage_set,
		      EStorageResult result,
		      void *data)
{
	FolderCommandData *folder_command_data;

	folder_command_data = (FolderCommandData *) data;

	/* FIXME: do something.  */

	folder_command_data_free (folder_command_data);
}


/* The signals for the folder selection dialog.  This used for the copy and
   move commands.  */

static void
folder_selection_dialog_folder_selected_callback (EShellFolderSelectionDialog *folder_selection_dialog,
						  const char *path,
						  void *data)
{
	FolderCommandData *folder_command_data;
	EStorageSet *storage_set;
	gboolean remove_source;

	folder_command_data = (FolderCommandData *) data;

	folder_command_data->destination_path = g_concat_dir_and_file (path,
								       g_basename (folder_command_data->source_path));

	switch (folder_command_data->command) {
	case FOLDER_COMMAND_COPY:
		remove_source = FALSE;
		break;
	case FOLDER_COMMAND_MOVE:
		remove_source = TRUE;
		break;
	default:
		g_assert_not_reached ();
		return;
	}

	if (strcmp (folder_command_data->destination_path,
		    folder_command_data->source_path) == 0) {
		const char *msg;

		if (remove_source)
			msg = _("Cannot move a folder over itself.");
		else
			msg = _("Cannot copy a folder over itself.");

		e_notice (GTK_WINDOW (folder_selection_dialog), GNOME_MESSAGE_BOX_ERROR, msg);
		return;
	}

	if (remove_source) {
		int source_len;

		source_len = strlen (folder_command_data->source_path);
		if (strncmp (folder_command_data->destination_path,
			     folder_command_data->source_path,
			     source_len) == 0) {
			e_notice (GTK_WINDOW (folder_selection_dialog), GNOME_MESSAGE_BOX_ERROR,
				  _("Cannot move a folder into one of its descendants."));
		}
	}

	storage_set = e_shell_get_storage_set (folder_command_data->shell);

	e_storage_set_async_xfer_folder (storage_set,
					 folder_command_data->source_path,
					 folder_command_data->destination_path,
					 remove_source,
					 xfer_result_callback,
					 folder_command_data);

	gtk_widget_destroy (GTK_WIDGET (folder_selection_dialog));
}

static void
folder_selection_dialog_cancelled_callback (EShellFolderSelectionDialog *folder_selection_dialog,
					    void *data)
{
	folder_command_data_free ((FolderCommandData *) data);
}

static void
connect_folder_selection_dialog_signals (EShellFolderSelectionDialog *folder_selection_dialog,
					 FolderCommandData *folder_command_data)
{
	g_assert (folder_command_data != NULL);

	gtk_signal_connect (GTK_OBJECT (folder_selection_dialog), "folder_selected",
			    GTK_SIGNAL_FUNC (folder_selection_dialog_folder_selected_callback),
			    folder_command_data);

	gtk_signal_connect (GTK_OBJECT (folder_selection_dialog), "cancelled",
			    GTK_SIGNAL_FUNC (folder_selection_dialog_cancelled_callback),
			    folder_command_data);
}


/* Create new folder.  */

void
e_shell_command_create_new_folder (EShell *shell,
				   EShellView *shell_view)
{
	g_return_if_fail (shell != NULL);
	g_return_if_fail (E_IS_SHELL (shell));
	g_return_if_fail (shell_view != NULL && E_IS_SHELL_VIEW (shell_view));

	/* FIXME: Should handle the result stuff.  */
	e_shell_show_folder_creation_dialog (shell, GTK_WINDOW (shell_view),
					     e_shell_view_get_current_path (shell_view),
					     NULL /* result_callback */,
					     NULL /* result_callback_data */);
}


/* Open folder in other window.   */

void
e_shell_command_open_folder_in_other_window (EShell *shell,
					     EShellView *shell_view)
{
	g_return_if_fail (shell != NULL);
	g_return_if_fail (E_IS_SHELL (shell));
	g_return_if_fail (shell_view != NULL && E_IS_SHELL_VIEW (shell_view));

	e_shell_create_view (shell, e_shell_view_get_current_uri (shell_view));
}


/* Copy folder.  */

void
e_shell_command_copy_folder (EShell *shell,
			     EShellView *shell_view)
{
	GtkWidget *folder_selection_dialog;
	FolderCommandData *data;
	const char *current_path;
	const char *current_uri;
	char *caption;

	g_return_if_fail (shell != NULL);
	g_return_if_fail (E_IS_SHELL (shell));
	g_return_if_fail (shell_view != NULL && E_IS_SHELL_VIEW (shell_view));

	current_path = e_shell_view_get_current_path (shell_view);

	if (current_path == NULL) {
		g_warning ("Called `e_shell_command_copy_folder()' without a valid displayed folder");
		return;
	}

	caption = g_strdup_printf (_("Specify a folder to copy folder \"%s\" into:"),
				   get_folder_name (shell, current_path));

	current_uri = e_shell_view_get_current_uri (shell_view);
	folder_selection_dialog = e_shell_folder_selection_dialog_new (shell,
								       _("Copy folder"),
								       caption,
								       current_uri,
								       NULL);

	g_free (caption);

	data = folder_command_data_new (shell, shell_view, FOLDER_COMMAND_COPY, current_path, NULL);
	connect_folder_selection_dialog_signals (E_SHELL_FOLDER_SELECTION_DIALOG (folder_selection_dialog),
						 data);

	gtk_widget_show (folder_selection_dialog);
}


/* Move folder.  */

void
e_shell_command_move_folder (EShell *shell,
			     EShellView *shell_view)
{
	GtkWidget *folder_selection_dialog;
	FolderCommandData *data;
	const char *current_path;
	const char *current_uri;
	char *caption;

	g_return_if_fail (shell != NULL);
	g_return_if_fail (E_IS_SHELL (shell));
	g_return_if_fail (shell_view != NULL);
	g_return_if_fail (E_IS_SHELL_VIEW (shell_view));

	current_path = e_shell_view_get_current_path (shell_view);
	if (current_path == NULL) {
		g_warning ("Called `e_shell_command_move_folder()' without a valid displayed folder");
		return;
	}

	caption = g_strdup_printf (_("Specify a folder to move folder \"%s\" into:"),
				   get_folder_name (shell, current_path));

	current_uri = e_shell_view_get_current_uri (shell_view);
	folder_selection_dialog = e_shell_folder_selection_dialog_new (shell,
								       _("Move folder"),
								       caption,
								       current_uri,
								       NULL);

	g_free (caption);

	data = folder_command_data_new (shell, shell_view, FOLDER_COMMAND_MOVE, current_path, NULL);
	connect_folder_selection_dialog_signals (E_SHELL_FOLDER_SELECTION_DIALOG (folder_selection_dialog),
						 data);

	gtk_widget_show (folder_selection_dialog);
}

static void
delete_cb (EStorageSet *storage_set,
	   EStorageResult result,
	   void *data)
{
	/* FIXME: Do something? */
}

static int
delete_dialog (EShellView *shell_view, const char *utf8_folder)
{
	GnomeDialog *dialog;
	char *title;
	GtkWidget *question_label;
	char *question;
	char *folder_name;

	/* Popup a dialog asking if they are sure they want to delete
           the folder */

	folder_name = e_utf8_to_gtk_string (GTK_WIDGET (shell_view), 
					    (char *)utf8_folder);
	title = g_strdup_printf (_("Delete folder '%s'"), folder_name);

	dialog = GNOME_DIALOG (gnome_dialog_new (title,
						 GNOME_STOCK_BUTTON_YES,
						 GNOME_STOCK_BUTTON_NO,
						 NULL));
	g_free (title);
	gnome_dialog_set_parent (dialog, GTK_WINDOW (shell_view));

	question = g_strdup_printf (_("Are you sure you want to remove the '%s' folder?"),
				    folder_name);
	question_label = gtk_label_new (question);	
	gtk_widget_show (question_label);

	gtk_box_pack_start (GTK_BOX (dialog->vbox), question_label, FALSE, TRUE, 2);
	g_free (folder_name);
	g_free (question);

	gnome_dialog_set_default (dialog, 1);

	return gnome_dialog_run_and_close (dialog);
}

void
e_shell_command_delete_folder (EShell *shell,
			       EShellView *shell_view)
{
	EStorageSet *storage_set;
	char *path;

	g_return_if_fail (shell != NULL);
	g_return_if_fail (E_IS_SHELL (shell));
	g_return_if_fail (shell_view != NULL);
	g_return_if_fail (E_IS_SHELL_VIEW (shell_view));

	storage_set = e_shell_get_storage_set (shell);
	path = g_strdup (e_shell_view_get_current_path (shell_view));
	
	if (delete_dialog (shell_view, get_folder_name (shell, path)) == 0) {
		/* Remove and destroy the control */
		e_shell_view_remove_control_for_uri (shell_view,
						     e_shell_view_get_current_uri (shell_view));

		/* Remove the folder */
		e_storage_set_async_remove_folder (storage_set,
						   path,
						   delete_cb,
						   NULL);

		/* Select another folder to prevent bad things from happening */
		e_shell_view_display_uri (shell_view, "evolution:/local/Inbox");
	}

	g_free (path);
}

#if 0
static char *
rename_dialog (char *folder_name)
{
	GnomeDialog *dialog;
	int result;
	char *title;
	GtkWidget *question_label;
	GtkWidget *entry;
	char *question;


	title = g_strdup_printf (_("Rename folder '%s'"),
				 folder_name);

	dialog = GNOME_DIALOG (gnome_dialog_new (title,
						 GNOME_STOCK_BUTTON_OK,
						 GNOME_STOCK_BUTTON_CANCEL,
						 NULL));
	g_free (title);

	/* FIXME: Finish then make command_rename_folder use it */
}
#endif


void
e_shell_command_rename_folder (EShell *shell,
			       EShellView *shell_view)
{
	g_return_if_fail (shell != NULL);
	g_return_if_fail (E_IS_SHELL (shell));
	g_return_if_fail (shell_view != NULL);
	g_return_if_fail (E_IS_SHELL_VIEW (shell_view));

	g_warning ("To be implemented");
}


void
e_shell_command_add_to_shortcut_bar (EShell *shell,
				     EShellView *shell_view)
{
	EShortcuts *shortcuts;
	int group_num;
	const char *uri;

	g_return_if_fail (shell != NULL);
	g_return_if_fail (E_IS_SHELL (shell));
	g_return_if_fail (shell_view != NULL);
	g_return_if_fail (E_IS_SHELL_VIEW (shell_view));

	shortcuts = e_shell_get_shortcuts (shell);
	group_num = e_shell_view_get_current_shortcuts_group_num (shell_view);
	uri = e_shell_view_get_current_uri (shell_view);

	e_shortcuts_add_shortcut (shortcuts, group_num, -1, uri, NULL, NULL);
}