path: root/calendar/gui/ea-day-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.
 *
 * 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 Lesser General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 *
 * Authors:
 *      Bolian Yin <bolian.yin@sun.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include "ea-day-view.h"
#include "ea-cal-view-event.h"

#include "ea-calendar-helpers.h"
#include "ea-gnome-calendar.h"
#include <glib/gi18n.h>

static const gchar * ea_day_view_get_name (AtkObject *accessible);
static const gchar * ea_day_view_get_description (AtkObject *accessible);
static gint         ea_day_view_get_n_children      (AtkObject *obj);
static AtkObject *   ea_day_view_ref_child           (AtkObject *obj,
                                                     gint i);
static gpointer parent_class = NULL;

G_DEFINE_TYPE (EaDayView, ea_day_view, EA_TYPE_CAL_VIEW)

static void
ea_day_view_init (EaDayView *view)
{
}

static void
ea_day_view_class_init (EaDayViewClass *klass)
{
    AtkObjectClass *class = ATK_OBJECT_CLASS (klass);

    parent_class = g_type_class_peek_parent (klass);

    class->get_name = ea_day_view_get_name;
    class->get_description = ea_day_view_get_description;

    class->get_n_children = ea_day_view_get_n_children;
    class->ref_child = ea_day_view_ref_child;
}

AtkObject *
ea_day_view_new (GtkWidget *widget)
{
    GObject *object;
    AtkObject *accessible;

    g_return_val_if_fail (E_IS_DAY_VIEW (widget), NULL);

    object = g_object_new (EA_TYPE_DAY_VIEW, NULL);

    accessible = ATK_OBJECT (object);
    atk_object_initialize (accessible, widget);

#ifdef ACC_DEBUG
    printf ("EvoAcc: ea_day_view created %p\n", (gpointer) accessible);
#endif

    return accessible;
}

static const gchar *
ea_day_view_get_name (AtkObject *accessible)
{
    EDayView *day_view;
    GnomeCalendar *gcal;
    const gchar *label_text;
    GnomeCalendarViewType view_type;
    GtkWidget *widget;
    gint n_events;
    gchar *event_str, *name_str;

    g_return_val_if_fail (EA_IS_DAY_VIEW (accessible), NULL);

    widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
    if (widget == NULL)
        return NULL;

    day_view = E_DAY_VIEW (widget);
    gcal = e_calendar_view_get_calendar (E_CALENDAR_VIEW (day_view));

    label_text = ea_gnome_calendar_get_label_description (gcal);

    n_events = atk_object_get_n_accessible_children (accessible);
    /* the child main item is always there */
    --n_events;
    if (n_events >= 1)
        /* To translators: Here, "It" is either like "Work Week View: July
        10th - July 14th, 2006." or "Day View: Thursday July 13th, 2006." */
        event_str = g_strdup_printf (
            ngettext (
                "It has %d event.",
                "It has %d events.",
                n_events),
            n_events);
    else
        /* To translators: Here, "It" is either like "Work Week View: July
        10th - July 14th, 2006." or "Day View: Thursday July 13th, 2006." */
        event_str = g_strdup (_("It has no events."));

    view_type = gnome_calendar_get_view (gcal);
    if (view_type == GNOME_CAL_WORK_WEEK_VIEW)
        /* To translators: First %s is the week, for example "July 10th -
        July 14th, 2006". Second %s is the number of events in this work
        week, for example "It has %d event/events." or  "It has no events." */
        name_str = g_strdup_printf (
            _("Work Week View: %s. %s"),
            label_text, event_str);
    else
        /* To translators: First %s is the day, for example "Thursday July
        13th, 2006". Second %s is the number of events on this day, for
        example "It has %d event/events." or  "It has no events." */
        name_str = g_strdup_printf (
            _("Day View: %s. %s"),
            label_text, event_str);

    ATK_OBJECT_CLASS (parent_class)->set_name (accessible, name_str);
    g_free (name_str);
    g_free (event_str);

    return accessible->name;
}

static const gchar *
ea_day_view_get_description (AtkObject *accessible)
{
    EDayView *day_view;
    GtkWidget *widget;

    g_return_val_if_fail (EA_IS_DAY_VIEW (accessible), NULL);

    widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
    if (widget == NULL)
        return NULL;

    day_view = E_DAY_VIEW (widget);

    if (accessible->description)
        return accessible->description;
    else {
        GnomeCalendar *gcal;
        GnomeCalendarViewType view_type;

        gcal = e_calendar_view_get_calendar (E_CALENDAR_VIEW (day_view));
        view_type = gnome_calendar_get_view (gcal);

        if (view_type == GNOME_CAL_WORK_WEEK_VIEW)
            return _("calendar view for a work week");
        else
            return _("calendar view for one or more days");
    }
}

static gint
ea_day_view_get_n_children (AtkObject *accessible)
{
    EDayView *day_view;
    GtkWidget *widget;
    gint day;
    gint days_shown;
    gint child_num = 0;

    g_return_val_if_fail (EA_IS_DAY_VIEW (accessible), -1);

    widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
    if (widget == NULL)
        return -1;

    day_view = E_DAY_VIEW (widget);
    days_shown = e_day_view_get_days_shown (day_view);

    child_num += day_view->long_events->len;

    for (day = 0; day < days_shown; day++) {
        child_num += day_view->events[day]->len;
    }

    /* "+1" for the main item */
    return child_num + 1;
}

static AtkObject *
ea_day_view_ref_child (AtkObject *accessible,
                       gint index)
{
    EDayView *day_view;
    gint child_num;
    gint day;
    AtkObject *atk_object = NULL;
    EDayViewEvent *event = NULL;
    GtkWidget *widget;

    g_return_val_if_fail (EA_IS_DAY_VIEW (accessible), NULL);

    child_num = atk_object_get_n_accessible_children (accessible);
    if (child_num <= 0 || index < 0 || index >= child_num)
        return NULL;

    widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
    if (widget == NULL)
        return NULL;

    day_view = E_DAY_VIEW (widget);

    if (index == 0) {
        /* index == 0 is the main item */
        atk_object = atk_gobject_accessible_for_object (
            G_OBJECT (day_view->main_canvas_item));
        g_object_ref (atk_object);
    }
    else {
        --index;
        /* a long event */
        if (index < day_view->long_events->len) {
            event = &g_array_index (day_view->long_events,
                        EDayViewEvent, index);
        }
        else {
            index -= day_view->long_events->len;
            day = 0;
            while (index >= day_view->events[day]->len) {
                index -= day_view->events[day]->len;
                ++day;
            }

            event = &g_array_index (day_view->events[day],
                        EDayViewEvent, index);
        }
        if (event && event->canvas_item) {
            /* Not use atk_gobject_accessible_for_object here,
             * we need to do special thing here
             */
            atk_object = ea_calendar_helpers_get_accessible_for (
                event->canvas_item);
            g_object_ref (atk_object);
        }
    }
    return atk_object;
}