diff options
Diffstat (limited to 'calendar/gui/a11y/ea-calendar-helpers.c')
| -rw-r--r-- | calendar/gui/a11y/ea-calendar-helpers.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/calendar/gui/a11y/ea-calendar-helpers.c b/calendar/gui/a11y/ea-calendar-helpers.c new file mode 100644 index 0000000000..f07cdfa086 --- /dev/null +++ b/calendar/gui/a11y/ea-calendar-helpers.c @@ -0,0 +1,156 @@ +/* + * + * 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: + * Bolian Yin <bolian.yin@sun.com> + * + * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) + * + */ + +#include "ea-calendar-helpers.h" +#include "ea-cal-view-event.h" +#include "ea-jump-button.h" +#include "e-day-view.h" +#include "e-week-view.h" + +#include <text/e-text.h> +#include <libgnomecanvas/gnome-canvas-pixbuf.h> + +/** + * ea_calendar_helpers_get_accessible_for + * @canvas_item: the canvas item for a event or a jump button + * @returns: the atk object for the canvas_item + * + **/ +AtkObject * +ea_calendar_helpers_get_accessible_for (GnomeCanvasItem *canvas_item) +{ + AtkObject *atk_obj = NULL; + GObject *g_obj; + + g_return_val_if_fail ((E_IS_TEXT (canvas_item)) || (GNOME_IS_CANVAS_ITEM (canvas_item)), NULL);; + + g_obj = G_OBJECT (canvas_item); + /* we cannot use atk_gobject_accessible_for_object here, + * EaDayViewEvent/EaWeekViewEvent cannot be created by the + * registered facotry of E_TEXT + */ + atk_obj = g_object_get_data (g_obj, "accessible-object"); + if (!atk_obj) { + if (E_IS_TEXT (canvas_item)) { + atk_obj = ea_cal_view_event_new (g_obj); + } + else if (GNOME_IS_CANVAS_PIXBUF(canvas_item)) { + atk_obj = ea_jump_button_new (g_obj); + } + else + return NULL; + } + return atk_obj; +} + +/** + * ea_calendar_helpers_get_view_widget_from: + * @canvas_item: the canvas item for a event or a jump button + * @returns: the cal view widget if exists + * + * Get the cal view widget contains the canvas_item. + * + **/ +ECalendarView * +ea_calendar_helpers_get_cal_view_from (GnomeCanvasItem *canvas_item) +{ + GnomeCanvas *canvas; + GtkWidget *view_widget = NULL; + + g_return_val_if_fail (canvas_item, NULL); + g_return_val_if_fail ((E_IS_TEXT (canvas_item)) || (GNOME_IS_CANVAS_ITEM (canvas_item)), NULL); + + /* canvas_item is the e_text for the event */ + /* canvas_item->canvas is the ECanvas for day view */ + /* parent of canvas_item->canvas is the EDayView or EWeekView widget */ + canvas = canvas_item->canvas; + view_widget = gtk_widget_get_parent (GTK_WIDGET(canvas)); + if (!view_widget || !E_IS_CALENDAR_VIEW (view_widget)) + return NULL; + + return E_CALENDAR_VIEW (view_widget); +} + +/** + * ea_calendar_helpers_get_cal_view_event_from + * @canvas_item: the cavas_item (e_text) for the event + * @returns: the ECalendarViewEvent + * + * Get the ECalendarViewEvent for the canvas_item. + * + **/ +ECalendarViewEvent * +ea_calendar_helpers_get_cal_view_event_from (GnomeCanvasItem *canvas_item) +{ + ECalendarView *cal_view; + gboolean event_found; + ECalendarViewEvent *cal_view_event; + + g_return_val_if_fail (E_IS_TEXT (canvas_item), NULL); + + cal_view = ea_calendar_helpers_get_cal_view_from (canvas_item); + + if (!cal_view) + return NULL; + + if (E_IS_DAY_VIEW (cal_view)) { + gint event_day, event_num; + EDayViewEvent *day_view_event; + EDayView *day_view = E_DAY_VIEW (cal_view); + event_found = e_day_view_find_event_from_item (day_view, canvas_item, + &event_day, &event_num); + if (!event_found) + return NULL; + if (event_day == E_DAY_VIEW_LONG_EVENT) { + /* a long event */ + day_view_event = &g_array_index (day_view->long_events, + EDayViewEvent, event_num); + } + else { + /* a main canvas event */ + day_view_event = &g_array_index (day_view->events[event_day], + EDayViewEvent, event_num); + } + cal_view_event = (ECalendarViewEvent *) day_view_event; + } + else if (E_IS_WEEK_VIEW (cal_view)) { + gint event_num, span_num; + EWeekViewEvent *week_view_event; + EWeekView *week_view = E_WEEK_VIEW (cal_view); + event_found = e_week_view_find_event_from_item (week_view, + canvas_item, + &event_num, + &span_num); + if (!event_found) + return NULL; + + week_view_event = &g_array_index (week_view->events, EWeekViewEvent, + event_num); + + cal_view_event = (ECalendarViewEvent *)week_view_event; + } + else { + g_return_val_if_reached (NULL); + } + return cal_view_event; +} |