/*
 * Evolution calendar - Delete calendar component dialog
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *		Federico Mena-Quintero <federico@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include <glib/gi18n.h>
#include "e-util/e-alert-dialog.h"
#include "delete-comp.h"



/**
 * delete_component_dialog:
 * @comp: A calendar component if a single component is to be deleted, or NULL
 * if more that one component is to be deleted.
 * @consider_as_untitled: If deleting more than one component, this is ignored.
 * Otherwise, whether to consider the component as not having a summary; if
 * FALSE then the component's summary string will be used.
 * @n_comps: Number of components that are to be deleted.
 * @vtype: Type of the components that are to be deleted.  This is ignored
 * if only one component is to be deleted, and the vtype is extracted from
 * the component instead.
 * @widget: A widget to use as a basis for conversion from UTF8 into font
 * encoding.
 *
 * Pops up a dialog box asking the user whether he wants to delete a number of
 * calendar components.  The dialog will not appear, however, if the
 * configuration option for confirmation is turned off.
 *
 * Return value: TRUE if the user clicked Yes, FALSE otherwise.  If the
 * configuration option for confirmation is turned off, this function will
 * unconditionally return TRUE.
 **/
gboolean
delete_component_dialog (ECalComponent *comp,
                         gboolean consider_as_untitled,
                         gint n_comps,
                         ECalComponentVType vtype,
                         GtkWidget *widget)
{
	const gchar *id;
	gchar *arg0 = NULL;
	gint response;
	gboolean attendees;

	if (comp) {
		g_return_val_if_fail (E_IS_CAL_COMPONENT (comp), FALSE);
		g_return_val_if_fail (n_comps == 1, FALSE);
	} else {
		g_return_val_if_fail (n_comps > 1, FALSE);
		g_return_val_if_fail (vtype != E_CAL_COMPONENT_NO_TYPE, FALSE);
	}

	g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);

	if (comp) {
		ECalComponentText summary;

		vtype = e_cal_component_get_vtype (comp);

		if (!consider_as_untitled) {
			e_cal_component_get_summary (comp, &summary);
			arg0 = g_strdup (summary.value);
		}

		switch (vtype) {
		case E_CAL_COMPONENT_EVENT:
			attendees = e_cal_component_has_attendees (comp);
			if (arg0) {
				if (attendees)
					id = "calendar:prompt-delete-titled-meeting";
				else
					id = "calendar:prompt-delete-titled-appointment";
			} else {
				if (attendees)
					id = "calendar:prompt-delete-meeting";
				else
					id = "calendar:prompt-delete-appointment";
			}
			break;

		case E_CAL_COMPONENT_TODO:
			if (arg0)
				id = "calendar:prompt-delete-named-task";
			else
				id = "calendar:prompt-delete-task";
			break;

		case E_CAL_COMPONENT_JOURNAL:
			if (arg0)
				id = "calendar:prompt-delete-named-memo";
			else
				id = "calendar:prompt-delete-memo";
			break;

		default:
			g_message ("delete_component_dialog(): Cannot handle object of type %d",
				   vtype);
			g_free (arg0);
			return FALSE;
		}
	} else {
		switch (vtype) {
		case E_CAL_COMPONENT_EVENT:
			if (n_comps == 1)
				id = "calendar:prompt-delete-appointment";
			else
				id = "calendar:prompt-delete-appointments";
			break;

		case E_CAL_COMPONENT_TODO:
			if (n_comps == 1)
				id = "calendar:prompt-delete-task";
			else
				id = "calendar:prompt-delete-tasks";
			break;

		case E_CAL_COMPONENT_JOURNAL:
			if (n_comps == 1)
				id = "calendar:prompt-delete-memo";
			else
				id = "calendar:prompt-delete-memos";
			break;

		default:
			g_message ("delete_component_dialog(): Cannot handle objects of type %d",
				   vtype);
			return FALSE;
		}

		if (n_comps > 1)
			arg0 = g_strdup_printf ("%d", n_comps);
	}

	response = e_alert_run_dialog_for_args ((GtkWindow *) gtk_widget_get_toplevel (widget), id, arg0, NULL);
	g_free (arg0);

	return response == GTK_RESPONSE_YES;
}

static void
cb_toggled_cb (GtkToggleButton *toggle, gpointer data)
{
	gboolean active = FALSE;
	GtkWidget *entry = (GtkWidget *) data;

	active = gtk_toggle_button_get_active (toggle);
	gtk_widget_set_sensitive (entry, active);
}

gboolean
prompt_retract_dialog (ECalComponent *comp, gchar **retract_text, GtkWidget *parent, gboolean *retract)
{
	gchar *message = NULL;
	ECalComponentVType type = E_CAL_COMPONENT_NO_TYPE;
	GtkMessageDialog *dialog = NULL;
	GtkWidget *cb, *label, *entry, *vbox, *sw, *frame;
	gboolean ret_val = FALSE;

	type = e_cal_component_get_vtype (comp);

	switch (type) {
		case E_CAL_COMPONENT_EVENT:
			message = g_strdup_printf (_("Are you sure you want to delete this meeting?"));
			break;
		case E_CAL_COMPONENT_TODO:
			message = g_strdup_printf (_("Are you sure you want to delete this task?"));
			break;
		case E_CAL_COMPONENT_JOURNAL:
			message = g_strdup_printf (_("Are you sure you want to delete this memo?"));
			break;
		default:
			g_message ("Retract: Unsupported object type \n");
			return FALSE;
	}

	dialog = (GtkMessageDialog *) gtk_message_dialog_new_with_markup
		((GtkWindow *) gtk_widget_get_toplevel (parent), GTK_DIALOG_MODAL,
		 GTK_MESSAGE_QUESTION, GTK_BUTTONS_OK_CANCEL, "<b>%s</b>", message);
	g_free (message);

	gtk_window_set_resizable (GTK_WINDOW (dialog), TRUE);

	vbox = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
	gtk_box_set_spacing (GTK_BOX (vbox), 12);

	cb = gtk_check_button_new_with_mnemonic (_("_Delete this item from all other recipient's mailboxes?"));
	gtk_container_add (GTK_CONTAINER (vbox), cb);

	label = gtk_label_new_with_mnemonic (_("_Retract comment"));

	frame = gtk_frame_new (NULL);
	gtk_frame_set_label_widget ((GtkFrame *) frame, label);
	gtk_frame_set_label_align ((GtkFrame *) frame, 0, 0);
	gtk_container_add (GTK_CONTAINER (vbox), frame);
	gtk_frame_set_shadow_type ((GtkFrame *) frame, GTK_SHADOW_NONE);

	sw = gtk_scrolled_window_new (NULL, NULL);
	gtk_scrolled_window_set_policy ((GtkScrolledWindow *) sw, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);

	entry = gtk_text_view_new ();
	gtk_scrolled_window_add_with_viewport ((GtkScrolledWindow *) sw, entry);
	gtk_label_set_mnemonic_widget ((GtkLabel *) label, entry);
	gtk_container_add (GTK_CONTAINER (frame), sw);

	g_signal_connect ((GtkToggleButton *)cb, "toggled", G_CALLBACK (cb_toggled_cb), entry);

	gtk_widget_show_all ((GtkWidget *) dialog);

	ret_val = (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK);

	if (ret_val) {
		if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (cb))) {
			GtkTextIter text_iter_start, text_iter_end;
			GtkTextBuffer *text_buffer;

			*retract = TRUE;
			text_buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (entry));
			gtk_text_buffer_get_start_iter (text_buffer, &text_iter_start);
			gtk_text_buffer_get_end_iter   (text_buffer, &text_iter_end);

			*retract_text = gtk_text_buffer_get_text (text_buffer, &text_iter_start,
					&text_iter_end, FALSE);
		} else
			*retract = FALSE;
	}

	gtk_widget_destroy ((GtkWidget *) dialog);

	return ret_val;
}