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-rw-r--r--a11y/calendar/ea-cal-view.c271
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* vim:expandtab:shiftwidth=8:tabstop=8:
+ */
+/* Evolution Accessibility: ea-cal-view.c
+ *
+ * Copyright (C) 2003 Ximian, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU 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 General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Author: Bolian Yin <bolian.yin@sun.com> Sun Microsystem Inc., 2003
+ *
+ */
+
+#include "ea-cal-view.h"
+#include "ea-calendar-helpers.h"
+#include "e-day-view.h"
+#include "e-week-view.h"
+#include "calendar-commands.h"
+#include <glib/gstrfuncs.h>
+
+static void ea_cal_view_class_init (EaCalViewClass *klass);
+
+static AtkObject* ea_cal_view_get_parent (AtkObject *accessible);
+static gint ea_cal_view_get_index_in_parent (AtkObject *accessible);
+static void ea_cal_view_real_initialize (AtkObject *accessible, gpointer data);
+
+static void ea_cal_view_event_changed_cb (ECalView *cal_view,
+ ECalViewEvent *event, gpointer data);
+static void ea_cal_view_event_added_cb (ECalView *cal_view,
+ ECalViewEvent *event, gpointer data);
+
+static void ea_cal_view_dates_change_cb (GnomeCalendar *gcal, gpointer data);
+
+static gpointer parent_class = NULL;
+
+GType
+ea_cal_view_get_type (void)
+{
+ static GType type = 0;
+ AtkObjectFactory *factory;
+ GTypeQuery query;
+ GType derived_atk_type;
+
+ if (!type) {
+ static GTypeInfo tinfo = {
+ sizeof (EaCalViewClass),
+ (GBaseInitFunc) NULL, /* base init */
+ (GBaseFinalizeFunc) NULL, /* base finalize */
+ (GClassInitFunc) ea_cal_view_class_init, /* class init */
+ (GClassFinalizeFunc) NULL, /* class finalize */
+ NULL, /* class data */
+ sizeof (EaCalView), /* instance size */
+ 0, /* nb preallocs */
+ (GInstanceInitFunc) NULL, /* instance init */
+ NULL /* value table */
+ };
+
+ /*
+ * Figure out the size of the class and instance
+ * we are run-time deriving from (GailWidget, in this case)
+ */
+
+ factory = atk_registry_get_factory (atk_get_default_registry (),
+ GTK_TYPE_WIDGET);
+ derived_atk_type = atk_object_factory_get_accessible_type (factory);
+ g_type_query (derived_atk_type, &query);
+
+ tinfo.class_size = query.class_size;
+ tinfo.instance_size = query.instance_size;
+
+ type = g_type_register_static (derived_atk_type,
+ "EaCalView", &tinfo, 0);
+ }
+
+ return type;
+}
+
+static void
+ea_cal_view_class_init (EaCalViewClass *klass)
+{
+ AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
+
+ parent_class = g_type_class_peek_parent (klass);
+
+ class->get_parent = ea_cal_view_get_parent;
+ class->get_index_in_parent = ea_cal_view_get_index_in_parent;
+ class->initialize = ea_cal_view_real_initialize;
+}
+
+AtkObject*
+ea_cal_view_new (GtkWidget *widget)
+{
+ GObject *object;
+ AtkObject *accessible;
+
+ g_return_val_if_fail (E_IS_CAL_VIEW (widget), NULL);
+
+ object = g_object_new (EA_TYPE_CAL_VIEW, NULL);
+
+ accessible = ATK_OBJECT (object);
+ atk_object_initialize (accessible, widget);
+
+ return accessible;
+}
+
+static void
+ea_cal_view_real_initialize (AtkObject *accessible, gpointer data)
+{
+ ECalView *cal_view;
+ GnomeCalendar *gcal;
+
+ g_return_if_fail (EA_IS_CAL_VIEW (accessible));
+ g_return_if_fail (E_IS_CAL_VIEW (data));
+
+ ATK_OBJECT_CLASS (parent_class)->initialize (accessible, data);
+ accessible->role = ATK_ROLE_CANVAS;
+ cal_view = E_CAL_VIEW (data);
+
+ /* add listener for event_changed, event_added
+ * we don't need to listen on event_removed. When the e_text
+ * of the event is removed, the cal_view_event will go to the state
+ * of "defunct" (changed by weak ref callback of atkgobjectaccessible
+ */
+ g_signal_connect (G_OBJECT(cal_view), "event_changed",
+ G_CALLBACK (ea_cal_view_event_changed_cb), NULL);
+ g_signal_connect (G_OBJECT(cal_view), "event_added",
+ G_CALLBACK (ea_cal_view_event_added_cb), NULL);
+
+ /* listen for date changes of calendar */
+ gcal = e_cal_view_get_calendar (cal_view);
+
+ if (gcal)
+ g_signal_connect (gcal, "dates_shown_changed",
+ G_CALLBACK (ea_cal_view_dates_change_cb),
+ accessible);
+}
+
+static AtkObject*
+ea_cal_view_get_parent (AtkObject *accessible)
+{
+ ECalView *cal_view;
+ GnomeCalendar *gnomeCalendar;
+
+ g_return_val_if_fail (EA_IS_CAL_VIEW (accessible), NULL);
+
+ if (!GTK_ACCESSIBLE (accessible)->widget)
+ return NULL;
+ cal_view = E_CAL_VIEW (GTK_ACCESSIBLE (accessible)->widget);
+
+ gnomeCalendar = e_cal_view_get_calendar (cal_view);
+
+ return gtk_widget_get_accessible (GTK_WIDGET(gnomeCalendar));
+}
+
+static gint
+ea_cal_view_get_index_in_parent (AtkObject *accessible)
+{
+ return 1;
+}
+
+static void
+ea_cal_view_event_changed_cb (ECalView *cal_view, ECalViewEvent *event,
+ gpointer data)
+{
+ AtkObject *atk_obj;
+ EaCalView *ea_cal_view;
+ AtkObject *event_atk_obj = NULL;
+
+ g_return_if_fail (E_IS_CAL_VIEW (cal_view));
+
+ atk_obj = gtk_widget_get_accessible (GTK_WIDGET(cal_view));
+ if (!EA_IS_CAL_VIEW (atk_obj))
+ return;
+ ea_cal_view = EA_CAL_VIEW (atk_obj);
+
+ if ((E_IS_DAY_VIEW (cal_view)) && event && event->canvas_item) {
+ event_atk_obj =
+ ea_calendar_helpers_get_accessible_for (event->canvas_item);
+ }
+ else if ((E_IS_WEEK_VIEW (cal_view)) && event) {
+ EWeekViewEventSpan *span;
+ EWeekViewEvent *week_view_event = (EWeekViewEvent *)event;
+ EWeekView *week_view = E_WEEK_VIEW (cal_view);
+ /* get the first span of the event */
+ span = &g_array_index (week_view->spans, EWeekViewEventSpan,
+ week_view_event->spans_index);
+ if (span && span->text_item)
+ event_atk_obj = ea_calendar_helpers_get_accessible_for (span->text_item);
+ }
+ if (event_atk_obj) {
+#ifdef ACC_DEBUG
+ printf ("AccDebug: event=%p changed\n", event);
+#endif
+ g_object_notify (G_OBJECT(event_atk_obj), "accessible-name");
+ g_signal_emit_by_name (event_atk_obj, "visible_data_changed");
+ }
+
+}
+
+static void
+ea_cal_view_event_added_cb (ECalView *cal_view, ECalViewEvent *event,
+ gpointer data)
+{
+ AtkObject *atk_obj;
+ EaCalView *ea_cal_view;
+ AtkObject *event_atk_obj = NULL;
+ gint index;
+
+ g_return_if_fail (E_IS_CAL_VIEW (cal_view));
+
+ atk_obj = gtk_widget_get_accessible (GTK_WIDGET(cal_view));
+ if (!EA_IS_CAL_VIEW (atk_obj))
+ return;
+ ea_cal_view = EA_CAL_VIEW (atk_obj);
+
+ if ((E_IS_DAY_VIEW (cal_view)) && event && event->canvas_item) {
+ event_atk_obj =
+ ea_calendar_helpers_get_accessible_for (event->canvas_item);
+ }
+ else if ((E_IS_WEEK_VIEW (cal_view)) && event) {
+ EWeekViewEventSpan *span;
+ EWeekViewEvent *week_view_event = (EWeekViewEvent *)event;
+ EWeekView *week_view = E_WEEK_VIEW (cal_view);
+ /* get the first span of the event */
+ span = &g_array_index (week_view->spans, EWeekViewEventSpan,
+ week_view_event->spans_index);
+ if (span && span->text_item)
+ event_atk_obj = ea_calendar_helpers_get_accessible_for (span->text_item);
+
+ }
+ if (event_atk_obj) {
+ index = atk_object_get_index_in_parent (event_atk_obj);
+ if (index < 0)
+ return;
+#ifdef ACC_DEBUG
+ printf ("AccDebug: event=%p added\n", event);
+#endif
+ g_signal_emit_by_name (atk_obj, "children_changed::add",
+ index, event_atk_obj, NULL);
+ }
+}
+
+static void
+ea_cal_view_dates_change_cb (GnomeCalendar *gcal, gpointer data)
+{
+ AtkObject *atk_obj;
+
+ g_return_if_fail (GNOME_IS_CALENDAR (gcal));
+ g_return_if_fail (data);
+ g_return_if_fail (EA_IS_CAL_VIEW (data));
+
+ atk_obj = ATK_OBJECT(data);
+ if (atk_obj->name) {
+ g_free (atk_obj->name);
+ atk_obj->name = NULL;
+ }
+ g_object_notify (G_OBJECT (data), "accessible-name");
+ g_signal_emit_by_name (data, "visible_data_changed");
+}
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