path: root/modules/calendar/e-cal-shell-view.c

/*
 * e-cal-shell-view.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/>
 *
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#include "e-cal-shell-view-private.h"

static gpointer parent_class;
static GType cal_shell_view_type;

static void
cal_shell_view_dispose (GObject *object)
{
    e_cal_shell_view_private_dispose (E_CAL_SHELL_VIEW (object));

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (parent_class)->dispose (object);
}

static void
cal_shell_view_finalize (GObject *object)
{
    e_cal_shell_view_private_finalize (E_CAL_SHELL_VIEW (object));

    /* Chain up to parent's finalize() method. */
    G_OBJECT_CLASS (parent_class)->finalize (object);
}

static void
cal_shell_view_constructed (GObject *object)
{
    /* Chain up to parent's constructed() method. */
    G_OBJECT_CLASS (parent_class)->constructed (object);

    e_cal_shell_view_private_constructed (E_CAL_SHELL_VIEW (object));
}

static void
cal_shell_view_execute_search (EShellView *shell_view)
{
    ECalShellContent *cal_shell_content;
    ECalShellSidebar *cal_shell_sidebar;
    EShellWindow *shell_window;
    EShellContent *shell_content;
    EShellSidebar *shell_sidebar;
    EShellSearchbar *searchbar;
    EActionComboBox *combo_box;
    GnomeCalendar *calendar;
    ECalendar *date_navigator;
    GtkRadioAction *action;
    time_t start_range;
    time_t end_range;
    gboolean range_search;
    gchar *start, *end;
    gchar *query;
    gchar *temp;
    gint value;

    shell_window = e_shell_view_get_shell_window (shell_view);
    shell_content = e_shell_view_get_shell_content (shell_view);
    shell_sidebar = e_shell_view_get_shell_sidebar (shell_view);

    cal_shell_content = E_CAL_SHELL_CONTENT (shell_content);
    cal_shell_sidebar = E_CAL_SHELL_SIDEBAR (shell_sidebar);

    searchbar = e_cal_shell_content_get_searchbar (cal_shell_content);

    action = GTK_RADIO_ACTION (ACTION (CALENDAR_SEARCH_ANY_FIELD_CONTAINS));
    value = gtk_radio_action_get_current_value (action);

    if (value == CALENDAR_SEARCH_ADVANCED) {
        query = e_shell_view_get_search_query (shell_view);

        if (!query)
            query = g_strdup ("");
    } else {
        const gchar *format;
        const gchar *text;
        GString *string;

        text = e_shell_searchbar_get_search_text (searchbar);

        if (text == NULL || *text == '\0') {
            text = "";
            value = CALENDAR_SEARCH_SUMMARY_CONTAINS;
        }

        switch (value) {
            default:
                text = "";
                /* fall through */

            case CALENDAR_SEARCH_SUMMARY_CONTAINS:
                format = "(contains? \"summary\" %s)";
                break;

            case CALENDAR_SEARCH_DESCRIPTION_CONTAINS:
                format = "(contains? \"description\" %s)";
                break;

            case CALENDAR_SEARCH_ANY_FIELD_CONTAINS:
                format = "(contains? \"any\" %s)";
                break;
        }

        /* Build the query. */
        string = g_string_new ("");
        e_sexp_encode_string (string, text);
        query = g_strdup_printf (format, string->str);
        g_string_free (string, TRUE);
    }

    range_search = FALSE;
    start_range = end_range = 0;

    /* Apply selected filter. */
    combo_box = e_shell_searchbar_get_filter_combo_box (searchbar);
    value = e_action_combo_box_get_current_value (combo_box);
    switch (value) {
        case CALENDAR_FILTER_ANY_CATEGORY:
            break;

        case CALENDAR_FILTER_UNMATCHED:
            temp = g_strdup_printf (
                "(and (has-categories? #f) %s)", query);
            g_free (query);
            query = temp;
            break;

        case CALENDAR_FILTER_ACTIVE_APPOINTMENTS:
            /* Show a year's worth of appointments. */
            start_range = time (NULL);
            end_range = time_add_day (start_range, 365);
            start = isodate_from_time_t (start_range);
            end = isodate_from_time_t (end_range);

            temp = g_strdup_printf (
                "(and %s (occur-in-time-range? "
                "(make-time \"%s\") (make-time \"%s\")))",
                query, start, end);
            g_free (query);
            query = temp;

            range_search = TRUE;
            break;

        case CALENDAR_FILTER_NEXT_7_DAYS_APPOINTMENTS:
            start_range = time (NULL);
            end_range = time_add_day (start_range, 7);
            start = isodate_from_time_t (start_range);
            end = isodate_from_time_t (end_range);

            temp = g_strdup_printf (
                "(and %s (occur-in-time-range? "
                "(make-time \"%s\") (make-time \"%s\")))",
                query, start, end);
            g_free (query);
            query = temp;

            range_search = TRUE;
            break;

        default:
        {
            GList *categories;
            const gchar *category_name;

            categories = e_categories_get_list ();
            category_name = g_list_nth_data (categories, value);
            g_list_free (categories);

            temp = g_strdup_printf (
                "(and (has-categories? \"%s\") %s)",
                category_name, query);
            g_free (query);
            query = temp;
            break;
        }
    }

    date_navigator = e_cal_shell_sidebar_get_date_navigator (cal_shell_sidebar);

    if (range_search) {
        /* Switch to list view and hide the date navigator. */
        action = GTK_RADIO_ACTION (ACTION (CALENDAR_VIEW_LIST));
        gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
        gtk_widget_hide (GTK_WIDGET (date_navigator));
    } else {
        /* Ensure the date navigator is visible. */
        gtk_widget_show (GTK_WIDGET (date_navigator));
    }

    /* Submit the query. */
    calendar = e_cal_shell_content_get_calendar (cal_shell_content);
    gnome_calendar_set_search_query (
        calendar, query, range_search, start_range, end_range);
    g_free (query);
}

static icalproperty *
get_attendee_prop (icalcomponent *icalcomp, const gchar *address)
{

    icalproperty *prop;

    if (!(address && *address))
        return NULL;

    for (prop = icalcomponent_get_first_property (icalcomp, ICAL_ATTENDEE_PROPERTY);
            prop;
            prop = icalcomponent_get_next_property (icalcomp, ICAL_ATTENDEE_PROPERTY)) {
        const gchar *attendee = icalproperty_get_attendee (prop);

        if (g_str_equal (itip_strip_mailto (attendee), address)) {
            return prop;
        }
    }
    return NULL;
}

static gboolean
is_delegated (icalcomponent *icalcomp, const gchar *user_email)
{
    icalproperty *prop;
    icalparameter *param;
    const gchar *delto = NULL;

    prop = get_attendee_prop (icalcomp, user_email);

    if (prop) {
        param = icalproperty_get_first_parameter (prop, ICAL_DELEGATEDTO_PARAMETER);
        if (param)
            delto = icalparameter_get_delegatedto (param);
    } else
        return FALSE;

    prop = get_attendee_prop (icalcomp, itip_strip_mailto (delto));

    if (prop) {
        const gchar *delfrom = NULL;
        icalparameter_partstat status = ICAL_PARTSTAT_NONE;

        param = icalproperty_get_first_parameter (prop, ICAL_DELEGATEDFROM_PARAMETER);
        if (param)
            delfrom = icalparameter_get_delegatedfrom (param);
        param = icalproperty_get_first_parameter (prop, ICAL_PARTSTAT_PARAMETER);
        if (param)
            status = icalparameter_get_partstat (param);
        if ((delfrom && *delfrom) && g_str_equal (itip_strip_mailto (delfrom), user_email)
                && status != ICAL_PARTSTAT_DECLINED)
            return TRUE;
    }

    return FALSE;
}

static void
cal_shell_view_update_actions (EShellView *shell_view)
{
    ECalShellViewPrivate *priv;
    ECalShellContent *cal_shell_content;
    EShellSidebar *shell_sidebar;
    EShellWindow *shell_window;
    EShell *shell;
    GnomeCalendarViewType view_type;
    GnomeCalendar *calendar;
    ECalendarView *view;
    GtkAction *action;
    GList *list, *iter;
    gboolean sensitive;
    gboolean visible;
    guint32 state;
    gint n_selected;

    /* Be descriptive. */
    gboolean can_delete_primary_source;
    gboolean editable = TRUE;
    gboolean has_primary_source;
    gboolean recurring = FALSE;
    gboolean is_instance = FALSE;
    gboolean is_meeting = FALSE;
    gboolean is_delegatable = FALSE;
    gboolean refresh_supported = FALSE;

    /* Chain up to parent's update_actions() method. */
    E_SHELL_VIEW_CLASS (parent_class)->update_actions (shell_view);

    priv = E_CAL_SHELL_VIEW_GET_PRIVATE (shell_view);

    shell_window = e_shell_view_get_shell_window (shell_view);
    shell = e_shell_window_get_shell (shell_window);

    if (e_shell_get_express_mode (shell)) {
        GtkWidget *widget;

        /* Hide the New button on the toolbar. */
        widget = e_shell_window_get_managed_widget (
            shell_window, "/main-toolbar");
        widget = (GtkWidget *)gtk_toolbar_get_nth_item (
            GTK_TOOLBAR (widget), 0);
        gtk_widget_hide (widget);

        /* Hide the main menu. */
        widget = e_shell_window_get_managed_widget (
            shell_window, "/main-menu");
        gtk_widget_hide (widget);
    }

    cal_shell_content = priv->cal_shell_content;
    calendar = e_cal_shell_content_get_calendar (cal_shell_content);
    view_type = gnome_calendar_get_view (calendar);
    view = gnome_calendar_get_calendar_view (calendar, view_type);

    list = e_calendar_view_get_selected_events (view);
    n_selected = g_list_length (list);

    for (iter = list; iter != NULL; iter = iter->next) {
        ECalendarViewEvent *event = iter->data;
        ECal *client;
        ECalComponent *comp;
        icalcomponent *icalcomp;
        gchar *user_email = NULL;
        gboolean user_org = FALSE;
        gboolean read_only = TRUE;

        if (!is_comp_data_valid (event))
            continue;

        client = event->comp_data->client;
        icalcomp = event->comp_data->icalcomp;

        e_cal_is_read_only (client, &read_only, NULL);
        editable = editable && !read_only;

        is_instance |= e_cal_util_component_is_instance (icalcomp);

        recurring |=
            e_cal_util_component_is_instance (icalcomp) ||
            e_cal_util_component_has_recurrences (icalcomp);

        /* The following tests only apply if one event is selected. */
        if (iter != list || n_selected > 1)
            continue;

        comp = e_cal_component_new ();
        e_cal_component_set_icalcomponent (
            comp, icalcomponent_new_clone (icalcomp));
        user_email = itip_get_comp_attendee (comp, client);

        is_meeting = e_cal_util_component_has_attendee (icalcomp);

        user_org =
            e_cal_util_component_has_organizer (icalcomp) &&
            itip_organizer_is_user (comp, client);

        is_delegatable =
            e_cal_get_static_capability (
                client, CAL_STATIC_CAPABILITY_DELEGATE_SUPPORTED) &&
            ((e_cal_get_static_capability (
                client, CAL_STATIC_CAPABILITY_DELEGATE_TO_MANY)) ||
            (!user_org && !is_delegated (icalcomp, user_email)));

        g_free (user_email);
        g_object_unref (comp);
    }

    g_list_free (list);

    shell_sidebar = e_shell_view_get_shell_sidebar (shell_view);
    state = e_shell_sidebar_check_state (shell_sidebar);

    has_primary_source =
        (state & E_CAL_SHELL_SIDEBAR_HAS_PRIMARY_SOURCE);
    can_delete_primary_source =
        (state & E_CAL_SHELL_SIDEBAR_CAN_DELETE_PRIMARY_SOURCE);
    refresh_supported =
        (state & E_CAL_SHELL_SIDEBAR_SOURCE_SUPPORTS_REFRESH);

    action = ACTION (CALENDAR_COPY);
    sensitive = has_primary_source;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (CALENDAR_DELETE);
    sensitive = can_delete_primary_source;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (CALENDAR_PROPERTIES);
    sensitive = has_primary_source;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (CALENDAR_REFRESH);
    sensitive = refresh_supported;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (CALENDAR_RENAME);
    sensitive = can_delete_primary_source;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_DELEGATE);
    sensitive =
        (n_selected == 1) && editable &&
        is_delegatable && is_meeting;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_DELETE);
    sensitive = (n_selected > 0) && editable && !recurring;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_DELETE_OCCURRENCE);
    sensitive = (n_selected > 0) && editable && recurring;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_DELETE_OCCURRENCE_ALL);
    sensitive = (n_selected > 0) && editable && recurring;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_FORWARD);
    sensitive = (n_selected == 1);
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_OCCURRENCE_MOVABLE);
    sensitive =
        (n_selected == 1) && editable &&
        recurring && is_instance;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_OPEN);
    sensitive = (n_selected == 1);
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_PRINT);
    sensitive = (n_selected == 1);
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_SCHEDULE);
    sensitive = (n_selected == 1) && editable && !is_meeting;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_SCHEDULE_APPOINTMENT);
    sensitive = (n_selected == 1) && editable && is_meeting;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_REPLY);
    sensitive = (n_selected == 1) && is_meeting;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_REPLY_ALL);
    sensitive = (n_selected == 1) && is_meeting;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (EVENT_MEETING_NEW);
    visible = itip_addresses_get_default () != NULL;
    gtk_action_set_visible (action, visible);
}

static void
cal_shell_view_class_init (ECalShellViewClass *class,
                            GTypeModule *type_module)
{
    GObjectClass *object_class;
    EShellViewClass *shell_view_class;

    parent_class = g_type_class_peek_parent (class);
    g_type_class_add_private (class, sizeof (ECalShellViewPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->dispose = cal_shell_view_dispose;
    object_class->finalize = cal_shell_view_finalize;
    object_class->constructed = cal_shell_view_constructed;

    shell_view_class = E_SHELL_VIEW_CLASS (class);
    shell_view_class->label = _("Calendar");
    shell_view_class->icon_name = "x-office-calendar";
    shell_view_class->ui_definition = "evolution-calendars.ui";
    shell_view_class->ui_manager_id = "org.gnome.evolution.calendars";
    shell_view_class->search_options = "/calendar-search-options";
    shell_view_class->search_rules = "caltypes.xml";
    shell_view_class->new_shell_content = e_cal_shell_content_new;
    shell_view_class->new_shell_sidebar = e_cal_shell_sidebar_new;
    shell_view_class->execute_search = cal_shell_view_execute_search;
    shell_view_class->update_actions = cal_shell_view_update_actions;

    /* XXX This is an unusual place to need an EShell instance.
     *     Would be cleaner to implement a method that either
     *     chains up or does nothing based on express mode. */
    if (e_shell_get_express_mode (e_shell_get_default ()))
        shell_view_class->construct_searchbar = NULL;

}

static void
cal_shell_view_init (ECalShellView *cal_shell_view,
                     EShellViewClass *shell_view_class)
{
    cal_shell_view->priv =
        E_CAL_SHELL_VIEW_GET_PRIVATE (cal_shell_view);

    e_cal_shell_view_private_init (cal_shell_view, shell_view_class);
}

GType
e_cal_shell_view_get_type (void)
{
    return cal_shell_view_type;
}

void
e_cal_shell_view_register_type (GTypeModule *type_module)
{
    const GTypeInfo type_info = {
        sizeof (ECalShellViewClass),
        (GBaseInitFunc) NULL,
        (GBaseFinalizeFunc) NULL,
        (GClassInitFunc) cal_shell_view_class_init,
        (GClassFinalizeFunc) NULL,
        type_module,
        sizeof (ECalShellView),
        0,    /* n_preallocs */
        (GInstanceInitFunc) cal_shell_view_init,
        NULL  /* value_table */
    };

    cal_shell_view_type = g_type_module_register_type (
        type_module, E_TYPE_SHELL_VIEW,
        "ECalShellView", &type_info, 0);
}