path: root/calendar/gui/calendar-component.c

/*
 * 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:
 *      Ettore Perazzoli <ettore@ximian.com>
 *      Rodrigo Moya <rodrigo@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include <string.h>
#include <errno.h>
#include <glib/gi18n.h>
#include <bonobo/bonobo-control.h>
#include <bonobo/bonobo-exception.h>
#include <libical/icalvcal.h>
#include <libedataserver/e-data-server-util.h>
#include <libedataserver/e-url.h>
#include <libecal/e-cal-time-util.h>
#include <libedataserverui/e-source-selector.h>
#include <shell/e-user-creatable-items-handler.h>
#include <shell/e-component-view.h>
#include "e-calendar-view.h"
#include "calendar-config-keys.h"
#include "calendar-config.h"
#include "calendar-component.h"
#include "calendar-commands.h"
#include "control-factory.h"
#include "gnome-cal.h"
#include "migration.h"
#include "e-comp-editor-registry.h"
#include "comp-util.h"
#include "common/authentication.h"
#include "dialogs/calendar-setup.h"
#include "dialogs/comp-editor.h"
#include "dialogs/copy-source-dialog.h"
#include "dialogs/event-editor.h"
#include "misc/e-info-label.h"
#include "e-util/e-error.h"
#include "e-cal-menu.h"
#include "e-cal-popup.h"

/* IDs for user creatable items */
#define CREATE_EVENT_ID        "event"
#define CREATE_MEETING_ID      "meeting"
#define CREATE_ALLDAY_EVENT_ID "allday-event"
#define CREATE_CALENDAR_ID      "calendar"

#define PARENT_TYPE bonobo_object_get_type ()
static BonoboObjectClass *parent_class = NULL;

typedef struct
{
    ESourceList *source_list;
    ESourceList *task_source_list;
    ESourceList *memo_source_list;

    GSList *source_selection;
    GSList *task_source_selection;
    GSList *memo_source_selection;

    GnomeCalendar *calendar;

    GtkWidget *source_selector;

    BonoboControl *view_control;

    GList *notifications;

    float        vpane_pos;
} CalendarComponentView;

struct _CalendarComponentPrivate {

    int gconf_notify_id;

    ESourceList *source_list;
    ESourceList *task_source_list;
    ESourceList *memo_source_list;

    GList *views;

    ECal *create_ecal;

    GList *notifications;
};

static void
calcomp_vpane_realized (GtkWidget *vpane, CalendarComponentView *view)
{
    gtk_paned_set_position (GTK_PANED (vpane), (int)(view->vpane_pos*vpane->allocation.height));

}

static gboolean
calcomp_vpane_resized (GtkWidget *vpane, GdkEventButton *e, CalendarComponentView *view)
{

    view->vpane_pos = gtk_paned_get_position (GTK_PANED (vpane));
    calendar_config_set_tag_vpane_pos (view->vpane_pos/(float)vpane->allocation.height);

    return FALSE;
}

/* Utility functions.  */

static gboolean
is_in_selection (GSList *selection, ESource *source)
{
    GSList *l;

    for (l = selection; l; l = l->next) {
        ESource *selected_source = l->data;

        if (!strcmp (e_source_peek_uid (selected_source), e_source_peek_uid (source)))
            return TRUE;
    }

    return FALSE;
}

static gboolean
is_in_uids (GSList *uids, ESource *source)
{
    GSList *l;

    for (l = uids; l; l = l->next) {
        const char *uid = l->data;

        if (!strcmp (uid, e_source_peek_uid (source)))
            return TRUE;
    }

    return FALSE;
}

static void
update_task_memo_selection (CalendarComponentView *component_view, ECalSourceType type)
{
    GSList *uids_selected, *l, *source_selection;
    ESourceList *source_list = NULL;

    if (type == E_CAL_SOURCE_TYPE_TODO) {
        /* Get the selection in gconf */
        uids_selected = calendar_config_get_tasks_selected ();
        source_list = component_view->task_source_list;
        source_selection = component_view->task_source_selection;
    } else {
        uids_selected = calendar_config_get_memos_selected ();
        source_list = component_view->memo_source_list;
        source_selection = component_view->memo_source_selection;
    }

    /* Remove any that aren't there any more */
    for (l = source_selection; l; l = l->next) {
        char *uid = l->data;
        ESource *source;

        source = e_source_list_peek_source_by_uid (component_view->source_list, uid);
        if (!source)
            gnome_calendar_remove_source_by_uid (component_view->calendar, type, uid);
        else if (!is_in_uids (uids_selected, source))
            gnome_calendar_remove_source (component_view->calendar, type, source);

        g_free (uid);
    }
    g_slist_free (source_selection);

    /* Make sure the whole selection is there */
    for (l = uids_selected; l; l = l->next) {
        char *uid = l->data;
        ESource *source;

        source = e_source_list_peek_source_by_uid (source_list, uid);
        if (source && !gnome_calendar_add_source (component_view->calendar, type, source))
            /* FIXME do something */;
    }

    if (type == E_CAL_SOURCE_TYPE_TODO)
        component_view->task_source_selection = uids_selected;
    else
        component_view->memo_source_selection = uids_selected;
}

static void
update_primary_task_memo_selection (CalendarComponentView *component_view, ECalSourceType type)
{
    ESource *source = NULL;
    char *uid;
    ESourceList *source_list = NULL;

    if (type == E_CAL_SOURCE_TYPE_TODO) {
        uid = calendar_config_get_primary_tasks ();
        source_list = component_view->task_source_list;
    } else {
        uid = calendar_config_get_primary_memos ();
        source_list = component_view->memo_source_list;
    }

    if (uid) {
        source = e_source_list_peek_source_by_uid (source_list, uid);

        g_free (uid);
    }

    if (source)
        gnome_calendar_set_default_source (component_view->calendar, type, source);
}

static void
config_primary_selection_changed_cb (GConfClient *client, guint id, GConfEntry *entry, gpointer data)
{
    CalendarComponent *calendar_component = data;
    CalendarComponentPrivate *priv = calendar_component->priv;

    if (priv->create_ecal) {
        g_object_unref (priv->create_ecal);
        priv->create_ecal = NULL;
    }
}

static void
config_tasks_selection_changed_cb (GConfClient *client, guint id, GConfEntry *entry, gpointer data)
{
    update_task_memo_selection (data, E_CAL_SOURCE_TYPE_TODO);
}


static void
config_primary_tasks_selection_changed_cb (GConfClient *client, guint id, GConfEntry *entry, gpointer data)
{
    update_primary_task_memo_selection (data, E_CAL_SOURCE_TYPE_TODO);
}

static void
config_memos_selection_changed_cb (GConfClient *client, guint id, GConfEntry *entry, gpointer data)
{
    update_task_memo_selection (data, E_CAL_SOURCE_TYPE_JOURNAL);
}


static void
config_primary_memos_selection_changed_cb (GConfClient *client, guint id, GConfEntry *entry, gpointer data)
{
    update_primary_task_memo_selection (data, E_CAL_SOURCE_TYPE_JOURNAL);
}

/* Evolution::Component CORBA methods.  */
static void
impl_handleURI (PortableServer_Servant servant, const char *uri, CORBA_Environment *ev)
{
    CalendarComponent *calendar_component = CALENDAR_COMPONENT (bonobo_object_from_servant (servant));
    CalendarComponentPrivate *priv;
    GList *l;
    CalendarComponentView *view = NULL;
    char *src_uid = NULL;
    char *uid = NULL;
    char *rid = NULL;

    priv = calendar_component->priv;

    l = g_list_last (priv->views);
    if (!l)
        return;

    view = l->data;

    if (!strncmp (uri, "calendar:", 9)) {
        EUri *euri = e_uri_new (uri);
        const char *p;
        char *header, *content;
        size_t len, clen;
        time_t start = -1, end = -1;

        p = euri->query;
        if (p) {
            while (*p) {
                len = strcspn (p, "=&");

                /* If it's malformed, give up. */
                if (p[len] != '=')
                    break;

                header = (char *) p;
                header[len] = '\0';
                p += len + 1;

                clen = strcspn (p, "&");

                content = g_strndup (p, clen);

                if (!g_ascii_strcasecmp (header, "startdate")) {
                    start = time_from_isodate (content);
                } else if (!g_ascii_strcasecmp (header, "enddate")) {
                    end = time_from_isodate (content);
                } else if (!g_ascii_strcasecmp (header, "source-uid")) {
                    src_uid = g_strdup (content);
                } else if (!g_ascii_strcasecmp (header, "comp-uid")) {
                    uid = g_strdup (content);
                } else if (!g_ascii_strcasecmp (header, "comp-rid")) {
                    rid = g_strdup (content);
                }

                g_free (content);

                p += clen;
                if (*p == '&') {
                    p++;
                    if (!strcmp (p, "amp;"))
                        p += 4;
                }
            }

            if (start != -1) {

                if (end == -1)
                    end = start;
                    gnome_calendar_set_selected_time_range (view->calendar, start, end);
            }
            if (src_uid && uid)
                gnome_calendar_edit_appointment (view->calendar, src_uid, uid, rid);

            g_free (src_uid);
            g_free (uid);
            g_free (rid);
        }
        e_uri_free (euri);
    }
}

static void
config_create_ecal_changed_cb (GConfClient *client, guint id, GConfEntry *entry, gpointer data)
{
    CalendarComponent *calendar_component = data;
    CalendarComponentPrivate *priv;

    priv = calendar_component->priv;

    g_object_unref (priv->create_ecal);
    priv->create_ecal = NULL;

    priv->notifications = g_list_remove (priv->notifications, GUINT_TO_POINTER (id));
}

static ECal *
setup_create_ecal (CalendarComponent *calendar_component, CalendarComponentView *component_view)
{
    CalendarComponentPrivate *priv;
    ESource *source = NULL;
    char *uid;
    guint not;

    priv = calendar_component->priv;

    /* Try to use the client from the calendar first to avoid re-opening things */
    if (component_view) {
        ECal *default_ecal;

        default_ecal = gnome_calendar_get_default_client (component_view->calendar);
        if (default_ecal)
            return default_ecal;
    }

    /* If there is an existing fall back, use that */
    if (priv->create_ecal)
        return priv->create_ecal;

    /* Get the current primary calendar, or try to set one if it doesn't already exist */
    uid = calendar_config_get_primary_calendar ();
    if (uid) {
        source = e_source_list_peek_source_by_uid (priv->source_list, uid);
        g_free (uid);

        priv->create_ecal = auth_new_cal_from_source (source, E_CAL_SOURCE_TYPE_EVENT);
    }

    if (!priv->create_ecal) {
        /* Try to create a default if there isn't one */
        source = e_source_list_peek_source_any (priv->source_list);
        if (source)
            priv->create_ecal = auth_new_cal_from_source (source, E_CAL_SOURCE_TYPE_EVENT);
    }

    if (priv->create_ecal) {
        icaltimezone *zone;

        zone = calendar_config_get_icaltimezone ();
        e_cal_set_default_timezone (priv->create_ecal, zone, NULL);

        if (!e_cal_open (priv->create_ecal, FALSE, NULL)) {
            GtkWidget *dialog;

            dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL,
                             GTK_MESSAGE_WARNING, GTK_BUTTONS_OK,
                             _("Unable to open the calendar '%s' for creating events and meetings"),
                             e_source_peek_name (source));

            gtk_dialog_run (GTK_DIALOG (dialog));
            gtk_widget_destroy (dialog);
            g_object_unref (priv->create_ecal);
            priv->create_ecal = NULL;

            return NULL;
        }

    } else {
        GtkWidget *dialog;

        dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL,
                         GTK_MESSAGE_WARNING, GTK_BUTTONS_OK,
                         _("There is no calendar available for creating events and meetings"));
        gtk_dialog_run (GTK_DIALOG (dialog));
        gtk_widget_destroy (dialog);

        return NULL;
    }

    /* Handle the fact it may change on us */
    not = calendar_config_add_notification_primary_calendar (config_create_ecal_changed_cb,
                                 calendar_component);
    priv->notifications = g_list_prepend (priv->notifications, GUINT_TO_POINTER (not));

    /* Save the primary source for use elsewhere */
    calendar_config_set_primary_calendar (e_source_peek_uid (source));

    return priv->create_ecal;
}

static CalendarComponentView *
create_component_view (CalendarComponent *calendar_component)
{
    CalendarComponentPrivate *priv;
    CalendarComponentView *component_view;
    GtkWidget **vpane;
    guint not;

    priv = calendar_component->priv;

    /* Create the calendar component view */
    component_view = g_new0 (CalendarComponentView, 1);

    vpane = gtk_vpaned_new ();
    g_signal_connect_after (vpane, "realize",
                G_CALLBACK(calcomp_vpane_realized), component_view);
    g_signal_connect (vpane, "button_release_event",
              G_CALLBACK (calcomp_vpane_resized), component_view);
    gtk_widget_show (vpane);
    /* Add the source lists */
    component_view->source_list = g_object_ref (priv->source_list);
    component_view->task_source_list = g_object_ref (priv->task_source_list);
    component_view->memo_source_list = g_object_ref (priv->memo_source_list);
    /* Create sidebar selector */
    component_view->source_selector = e_source_selector_new (calendar_component->priv->source_list);

    gtk_widget_show (component_view->source_selector);

    /* Set up the "new" item handler */
    g_signal_connect (component_view->view_control, "activate", G_CALLBACK (control_activate_cb), component_view);

    /* Load the selection from the last run */
    update_task_memo_selection (component_view, E_CAL_SOURCE_TYPE_TODO);
    update_primary_task_memo_selection (component_view, E_CAL_SOURCE_TYPE_TODO);
    update_task_memo_selection (component_view, E_CAL_SOURCE_TYPE_JOURNAL);
    update_primary_task_memo_selection (component_view, E_CAL_SOURCE_TYPE_JOURNAL);

    /* If the tasks/memos selection changes elsewhere, update it for the mini
       mini tasks view sidebar */
    not = calendar_config_add_notification_tasks_selected (config_tasks_selection_changed_cb,
                                   component_view);
    component_view->notifications = g_list_prepend (component_view->notifications, GUINT_TO_POINTER (not));

    not = calendar_config_add_notification_memos_selected (config_memos_selection_changed_cb,
                                   component_view);
    component_view->notifications = g_list_prepend (component_view->notifications, GUINT_TO_POINTER (not));

    not = calendar_config_add_notification_primary_tasks (config_primary_tasks_selection_changed_cb,
                                  component_view);
    component_view->notifications = g_list_prepend (component_view->notifications, GUINT_TO_POINTER (not));

    not = calendar_config_add_notification_primary_memos (config_primary_memos_selection_changed_cb,
                                  component_view);
    component_view->notifications = g_list_prepend (component_view->notifications, GUINT_TO_POINTER (not));

    return component_view;
}

static void
destroy_component_view (CalendarComponentView *component_view)
{
    GList *l;

    if (component_view->source_list)
        g_object_unref (component_view->source_list);

    if (component_view->task_source_list)
        g_object_unref (component_view->task_source_list);

    if (component_view->memo_source_list)
        g_object_unref (component_view->memo_source_list);

    if (component_view->source_selection)
        e_source_selector_free_selection (component_view->source_selection);

    for (l = component_view->notifications; l; l = l->next)
        calendar_config_remove_notification (GPOINTER_TO_UINT (l->data));
    g_list_free (component_view->notifications);

    if (component_view->task_source_selection) {
        g_slist_foreach (component_view->task_source_selection, (GFunc) g_free, NULL);
        g_slist_free (component_view->task_source_selection);
    }

    if (component_view->memo_source_selection) {
        g_slist_foreach (component_view->memo_source_selection, (GFunc) g_free, NULL);
        g_slist_free (component_view->memo_source_selection);
    }

    g_free (component_view);
}

static void
view_destroyed_cb (gpointer data, GObject *where_the_object_was)
{
    CalendarComponent *calendar_component = data;
    CalendarComponentPrivate *priv;
    GList *l;

    priv = calendar_component->priv;

    for (l = priv->views; l; l = l->next) {
        CalendarComponentView *component_view = l->data;

        if (G_OBJECT (component_view->view_control) == where_the_object_was) {
            priv->views = g_list_remove (priv->views, component_view);
            destroy_component_view (component_view);

            break;
        }
    }
}


/* GObject methods.  */

static void
impl_dispose (GObject *object)
{
    CalendarComponent *calendar_component = CALENDAR_COMPONENT (object);
    CalendarComponentPrivate *priv = calendar_component->priv;
    GList *l;

    if (priv->source_list != NULL) {
        g_object_unref (priv->source_list);
        priv->source_list = NULL;
    }

    if (priv->create_ecal) {
        g_object_unref (priv->create_ecal);
        priv->create_ecal = NULL;
    }

    for (l = priv->views; l; l = l->next) {
        CalendarComponentView *component_view = l->data;

        g_object_weak_unref (G_OBJECT (component_view->view_control), view_destroyed_cb, calendar_component);
    }
    g_list_free (priv->views);
    priv->views = NULL;

    for (l = priv->notifications; l; l = l->next)
        calendar_config_remove_notification (GPOINTER_TO_UINT (l->data));
    g_list_free (priv->notifications);
    priv->notifications = NULL;

    (* G_OBJECT_CLASS (parent_class)->dispose) (object);
}

static void
calendar_component_class_init (CalendarComponentClass *class)
{
    POA_GNOME_Evolution_Component__epv *epv = &class->epv;
    GObjectClass *object_class = G_OBJECT_CLASS (class);

    parent_class = g_type_class_peek_parent (class);

    epv->handleURI               = impl_handleURI;

    object_class->dispose  = impl_dispose;
}

static void
calendar_component_init (CalendarComponent *component)
{
    CalendarComponentPrivate *priv;
    guint not;

    not = calendar_config_add_notification_primary_calendar (config_primary_selection_changed_cb,
                                 component);
    priv->notifications = g_list_prepend (priv->notifications, GUINT_TO_POINTER (not));

    component->priv = priv;

    if (!e_cal_get_sources (&priv->task_source_list, E_CAL_SOURCE_TYPE_TODO, NULL))
        ;
    if (!e_cal_get_sources (&priv->memo_source_list, E_CAL_SOURCE_TYPE_JOURNAL, NULL))
        ;
}