Initial checkin of new itip formatter

2004-12-22  JP Rosevear  <jpr@novell.com>

	* Initial checkin of new itip formatter

svn path=/trunk/; revision=28184

1 files changed, 275 insertions, 0 deletions

diff --git a/plugins/itip-formatter/itip-formatter.c b/plugins/itip-formatter/itip-formatter.c
new file mode 100644
index 0000000000..c16cc24826
--- /dev/null
+++ b/plugins/itip-formatter/itip-formatter.c
@@ -0,0 +1,275 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ *  Authors: JP Rosevear <jpr@novell.com>
+ *
+ *  Copyright 2004 Novell, 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 Street #330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <string.h>
+#include <glib.h>
+#include <gtk/gtk.h>
+#include <libgnome/gnome-i18n.h>
+#include <gconf/gconf-client.h>
+#include <camel/camel-stream.h>
+#include <camel/camel-stream-mem.h>
+#include <camel/camel-medium.h>
+#include <camel/camel-mime-message.h>
+#include <libecal/e-cal.h>
+#include <libecal/e-cal-time-util.h>
+#include <gtkhtml/gtkhtml-embedded.h>
+#include <mail/em-format-hook.h>
+#include <mail/em-format-html.h>
+#include <e-util/e-account-list.h>
+#include <e-util/e-icon-factory.h>
+#include <calendar/gui/itip-utils.h>
+#include "itip-view.h"
+
+#define CLASSID "itip://"
+
+void format_itip (EPlugin *ep, EMFormatHookTarget *target);
+
+typedef struct {
+	EMFormatHTMLPObject pobject;
+
+	GtkWidget *view;
+	
+	ESourceList *source_lists[E_CAL_SOURCE_TYPE_LAST];
+	GHashTable *ecals[E_CAL_SOURCE_TYPE_LAST];	
+
+	ECal *current_ecal;
+	ECalSourceType type;
+
+	char action;
+	gboolean rsvp;
+
+	GtkWidget *ok;
+	GtkWidget *hbox;
+	GtkWidget *vbox;
+	
+	char *vcalendar;
+	ECalComponent *comp;
+	icalcomponent *main_comp;
+	icalcomponent *ical_comp;
+	icalcomponent *top_level;
+	icalcompiter iter;
+	icalproperty_method method;
+
+	int current;
+	int total;
+
+	gchar *calendar_uid;
+
+	EAccountList *accounts;
+
+	gchar *from_address;
+	gchar *delegator_address;
+	gchar *delegator_name;
+	gchar *my_address;
+	gint   view_only;
+} FormatItipPObject;
+
+static icalcomponent *
+get_next (icalcompiter *iter)
+{
+	icalcomponent *ret = NULL;
+	icalcomponent_kind kind;
+
+	do {
+		icalcompiter_next (iter);
+		ret = icalcompiter_deref (iter);
+		if (ret == NULL)
+			break;
+		kind = icalcomponent_isa (ret);
+	} while (ret != NULL 
+		 && kind != ICAL_VEVENT_COMPONENT
+		 && kind != ICAL_VTODO_COMPONENT
+		 && kind != ICAL_VFREEBUSY_COMPONENT);
+
+	return ret;
+}
+
+static void
+extract_itip_data (FormatItipPObject *pitip) 
+{
+	CamelDataWrapper *content;
+	CamelStream *mem;
+	icalproperty *prop;
+	icalcomponent_kind kind = ICAL_NO_COMPONENT;
+	icalcomponent *tz_comp;
+	icalcompiter tz_iter;
+
+/* FIXME try and match sender with organizer/attendee/sentby?
+	pd->from_address = camel_address_encode ((CamelAddress *)from);		
+	g_message ("Detected from address %s", pd->from_address);
+*/
+
+	content = camel_medium_get_content_object ((CamelMedium *) pitip->pobject.part);
+	mem = camel_stream_mem_new ();
+	camel_data_wrapper_write_to_stream (content, mem);
+	
+	pitip->vcalendar = g_strndup (((CamelStreamMem *) mem)->buffer->data, ((CamelStreamMem *) mem)->buffer->len);
+
+	/* FIXME unref the content object as well? */
+	camel_object_unref (mem);	
+
+	pitip->top_level = e_cal_util_new_top_level ();
+
+	pitip->main_comp = icalparser_parse_string (pitip->vcalendar);
+	if (pitip->main_comp == NULL) {
+//		write_error_html (itip, _("The attachment does not contain a valid calendar message"));
+		return;
+	}
+
+	prop = icalcomponent_get_first_property (pitip->main_comp, ICAL_METHOD_PROPERTY);
+	if (prop == NULL) {
+		pitip->method = ICAL_METHOD_PUBLISH;
+	} else {
+		pitip->method = icalproperty_get_method (prop);
+	}
+
+	tz_iter = icalcomponent_begin_component (pitip->main_comp, ICAL_VTIMEZONE_COMPONENT);
+	while ((tz_comp = icalcompiter_deref (&tz_iter)) != NULL) {
+		icalcomponent *clone;
+
+		clone = icalcomponent_new_clone (tz_comp);
+		icalcomponent_add_component (pitip->top_level, clone);
+
+		icalcompiter_next (&tz_iter);
+	}
+
+	pitip->iter = icalcomponent_begin_component (pitip->main_comp, ICAL_ANY_COMPONENT);
+	pitip->ical_comp = icalcompiter_deref (&pitip->iter);
+	if (pitip->ical_comp != NULL) {
+		kind = icalcomponent_isa (pitip->ical_comp);
+		if (kind != ICAL_VEVENT_COMPONENT
+		    && kind != ICAL_VTODO_COMPONENT
+		    && kind != ICAL_VFREEBUSY_COMPONENT)
+			pitip->ical_comp = get_next (&pitip->iter);
+	}
+
+	if (pitip->ical_comp == NULL) {
+//		write_error_html (itip, _("The attachment has no viewable calendar items"));		
+		return;
+	}
+
+	pitip->total = icalcomponent_count_components (pitip->main_comp, ICAL_VEVENT_COMPONENT);
+	pitip->total += icalcomponent_count_components (pitip->main_comp, ICAL_VTODO_COMPONENT);
+	pitip->total += icalcomponent_count_components (pitip->main_comp, ICAL_VFREEBUSY_COMPONENT);
+
+	if (pitip->total > 0)
+		pitip->current = 1;
+	else
+		pitip->current = 0;
+
+	pitip->comp = e_cal_component_new ();
+	if (!e_cal_component_set_icalcomponent (pitip->comp, pitip->ical_comp)) {
+//		write_error_html (itip, _("The message does not appear to be properly formed"));
+		g_object_unref (pitip->comp);
+		pitip->comp = NULL;
+		return;
+	};
+
+//	show_current (itip);	
+}
+
+static gboolean
+format_itip_object (EMFormatHTML *efh, GtkHTMLEmbedded *eb, EMFormatHTMLPObject *pobject)
+{
+	FormatItipPObject *pitip = (FormatItipPObject *) pobject;
+	ECalComponentText text;
+	ECalComponentOrganizer organizer;
+	ECalComponentDateTime datetime;
+	icaltimezone *from_zone, *to_zone;
+	const char *string;
+
+	/* FIXME Error handling? */
+	extract_itip_data (pitip);
+
+	pitip->view = itip_view_new ();
+	gtk_widget_show (pitip->view);
+
+	itip_view_set_mode (ITIP_VIEW (pitip->view), ITIP_VIEW_MODE_REQUEST);
+
+	e_cal_component_get_organizer (pitip->comp, &organizer);
+	itip_view_set_organizer (ITIP_VIEW (pitip->view), organizer.cn ? organizer.cn : itip_strip_mailto (organizer.value));
+	/* FIXME, do i need to strip the sentby somehow? Maybe with camel? */
+	itip_view_set_sentby (ITIP_VIEW (pitip->view), organizer.sentby);
+
+	e_cal_component_get_summary (pitip->comp, &text);
+	itip_view_set_summary (ITIP_VIEW (pitip->view), text.value ? text.value : _("None"));
+
+	e_cal_component_get_location (pitip->comp, &string);
+	itip_view_set_location (ITIP_VIEW (pitip->view), string);
+
+	to_zone = calendar_config_get_icaltimezone ();
+	
+	e_cal_component_get_dtstart (pitip->comp, &datetime);
+	if (datetime.value) {
+		struct tm start_tm;
+		
+		/* FIXME Handle tzid that is not in the component - treat as "local" time */
+		if (!datetime.value->is_utc && datetime.tzid) 
+			from_zone = icalcomponent_get_timezone (pitip->top_level, datetime.tzid);
+		else
+			from_zone = NULL;
+		
+		start_tm = icaltimetype_to_tm_with_zone (datetime.value, from_zone, to_zone);
+
+		itip_view_set_start (ITIP_VIEW (pitip->view), &start_tm);
+	}
+	e_cal_component_free_datetime (&datetime);
+
+	e_cal_component_get_dtend (pitip->comp, &datetime);
+	if (datetime.value) {
+		struct tm end_tm;
+		
+		/* FIXME Handle tzid that is not in the component - treat as "local" time */
+		if (!datetime.value->is_utc && datetime.tzid) 
+			from_zone = icalcomponent_get_timezone (pitip->top_level, datetime.tzid);
+		else
+			from_zone = NULL;
+		
+		end_tm = icaltimetype_to_tm_with_zone (datetime.value, from_zone, to_zone);
+
+		itip_view_set_end (ITIP_VIEW (pitip->view), &end_tm);
+	}
+	e_cal_component_free_datetime (&datetime);
+
+	gtk_container_add (GTK_CONTAINER (eb), pitip->view);
+
+	return TRUE;
+}
+
+void
+format_itip (EPlugin *ep, EMFormatHookTarget *target)
+{
+	FormatItipPObject *pitip;
+
+	calendar_config_init ();
+	
+	pitip = (FormatItipPObject *) em_format_html_add_pobject ((EMFormatHTML *) target->format, sizeof (FormatItipPObject), CLASSID, target->part, format_itip_object);
+	// FIXME set the free function
+//	pitip->object.free = pitip_free;
+	camel_stream_printf (target->stream, "<table border=0 width=\"100%%\" cellpadding=3><tr>");
+	camel_stream_printf (target->stream, "<td valign=top><object classid=\"%s\"></object></td><td width=100%% valign=top>", CLASSID);
+	camel_stream_printf (target->stream, "</td></tr></table>");
+}