/*
* 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:
* Damon Chaplin <damon@ximian.com>
* Bolian Yin <bolian.yin@sun.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
/*
* ECalendar - displays a table of monthly calendars, allowing highlighting
* and selection of one or more days. Like GtkCalendar with more features.
* Most of the functionality is in the ECalendarItem canvas item, though
* we also add GnomeCanvasWidget buttons to go to the previous/next month and
* to got to the current day.
*/
#include "evolution-config.h"
#include <glib/gi18n.h>
#include <gtk/gtk.h>
#include <libedataserver/libedataserver.h>
#include <libgnomecanvas/gnome-canvas-widget.h>
#include "e-misc-utils.h"
#include "e-calendar.h"
#define E_CALENDAR_SMALL_FONT_PTSIZE 6
#define E_CALENDAR_SMALL_FONT \
"-adobe-utopia-regular-r-normal-*-*-100-*-*-p-*-iso8859-*"
#define E_CALENDAR_SMALL_FONT_FALLBACK \
"-adobe-helvetica-medium-r-normal-*-*-80-*-*-p-*-iso8859-*"
/* The space between the arrow buttons and the edge of the widget. */
#define E_CALENDAR_ARROW_BUTTON_X_PAD 2
#define E_CALENDAR_ARROW_BUTTON_Y_PAD 0
/* Vertical padding. The padding above the button includes the space for the
* horizontal line. */
#define E_CALENDAR_YPAD_ABOVE_LOWER_BUTTONS 4
#define E_CALENDAR_YPAD_BELOW_LOWER_BUTTONS 3
/* Horizontal padding inside & between buttons. */
#define E_CALENDAR_IXPAD_BUTTONS 4
#define E_CALENDAR_XPAD_BUTTONS 8
/* The time between steps when the prev/next buttons is pressed, in 1/1000ths
* of a second, and the number of timeouts we skip before we start
* automatically moving back/forward. */
#define E_CALENDAR_AUTO_MOVE_TIMEOUT 150
#define E_CALENDAR_AUTO_MOVE_TIMEOUT_DELAY 2
struct _ECalendarPrivate {
ECalendarItem *calitem;
GnomeCanvasItem *prev_item;
GnomeCanvasItem *next_item;
GnomeCanvasItem *prev_item_year;
GnomeCanvasItem *next_item_year;
gint min_rows;
gint min_cols;
gint max_rows;
gint max_cols;
/* These are all used when the prev/next buttons are held down.
* moving_forward is TRUE if we are moving forward in time, i.e. the
* next button is pressed. */
gint timeout_id;
gint timeout_delay;
gboolean moving_forward;
gint reposition_timeout_id;
};
static void e_calendar_dispose (GObject *object);
static void e_calendar_realize (GtkWidget *widget);
static void e_calendar_style_updated (GtkWidget *widget);
static void e_calendar_get_preferred_width (GtkWidget *widget,
gint *minimal_width,
gint *natural_width);
static void e_calendar_get_preferred_height (GtkWidget *widget,
gint *minimal_height,
gint *natural_height);
static void e_calendar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gint e_calendar_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static void e_calendar_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time);
static gboolean e_calendar_button_has_focus (ECalendar *cal);
static gboolean e_calendar_focus (GtkWidget *widget,
GtkDirectionType direction);
static void e_calendar_on_prev_pressed (ECalendar *cal);
static void e_calendar_on_prev_released (ECalendar *cal);
static void e_calendar_on_prev_clicked (ECalendar *cal);
static void e_calendar_on_next_pressed (ECalendar *cal);
static void e_calendar_on_next_released (ECalendar *cal);
static void e_calendar_on_next_clicked (ECalendar *cal);
static void e_calendar_on_prev_year_pressed (ECalendar *cal);
static void e_calendar_on_prev_year_released (ECalendar *cal);
static void e_calendar_on_prev_year_clicked (ECalendar *cal);
static void e_calendar_on_next_year_pressed (ECalendar *cal);
static void e_calendar_on_next_year_released (ECalendar *cal);
static void e_calendar_on_next_year_clicked (ECalendar *cal);
static void e_calendar_start_auto_move (ECalendar *cal,
gboolean moving_forward);
static gboolean e_calendar_auto_move_handler (gpointer data);
static void e_calendar_start_auto_move_year (ECalendar *cal,
gboolean moving_forward);
static gboolean e_calendar_auto_move_year_handler (gpointer data);
static void e_calendar_stop_auto_move (ECalendar *cal);
G_DEFINE_TYPE (
ECalendar,
e_calendar,
E_TYPE_CANVAS)
static void
calitem_month_width_changed_cb (ECalendarItem *item,
ECalendar *cal)
{
g_return_if_fail (E_IS_CALENDAR (cal));
gtk_widget_queue_resize (GTK_WIDGET (cal));
}
static GtkWidget *
e_calendar_create_button (GtkArrowType arrow_type)
{
GtkWidget *button, *pixmap;
GtkCssProvider *css_provider;
GtkStyleContext *style_context;
GError *error = NULL;
button = gtk_button_new ();
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
gtk_widget_show (button);
pixmap = gtk_arrow_new (arrow_type, GTK_SHADOW_NONE);
gtk_widget_show (pixmap);
gtk_container_add (GTK_CONTAINER (button), pixmap);
css_provider = gtk_css_provider_new ();
gtk_css_provider_load_from_data (css_provider,
"button.ecalendar {"
" min-height: 0px;"
" min-width: 0px;"
" padding: 0px;"
"}", -1, &error);
style_context = gtk_widget_get_style_context (button);
if (error == NULL) {
gtk_style_context_add_class (style_context, "ecalendar");
gtk_style_context_add_provider (
style_context,
GTK_STYLE_PROVIDER (css_provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
} else {
g_warning ("%s: %s", G_STRFUNC, error->message);
g_clear_error (&error);
}
g_object_unref (css_provider);
return button;
}
static void
e_calendar_class_init (ECalendarClass *class)
{
GObjectClass *object_class;
GtkWidgetClass *widget_class;
g_type_class_add_private (class, sizeof (ECalendarPrivate));
object_class = (GObjectClass *) class;
object_class->dispose = e_calendar_dispose;
widget_class = (GtkWidgetClass *) class;
widget_class->realize = e_calendar_realize;
widget_class->style_updated = e_calendar_style_updated;
widget_class->get_preferred_width = e_calendar_get_preferred_width;
widget_class->get_preferred_height = e_calendar_get_preferred_height;
widget_class->size_allocate = e_calendar_size_allocate;
widget_class->drag_motion = e_calendar_drag_motion;
widget_class->drag_leave = e_calendar_drag_leave;
widget_class->focus = e_calendar_focus;
}
static void
e_calendar_init (ECalendar *cal)
{
GnomeCanvasGroup *canvas_group;
PangoFontDescription *small_font_desc;
PangoContext *pango_context;
GtkWidget *button;
AtkObject *a11y;
cal->priv = G_TYPE_INSTANCE_GET_PRIVATE (cal, E_TYPE_CALENDAR, ECalendarPrivate);
pango_context = gtk_widget_create_pango_context (GTK_WIDGET (cal));
g_warn_if_fail (pango_context != NULL);
/* Create the small font. */
small_font_desc = pango_font_description_copy (
pango_context_get_font_description (pango_context));
pango_font_description_set_size (
small_font_desc,
E_CALENDAR_SMALL_FONT_PTSIZE * PANGO_SCALE);
canvas_group = GNOME_CANVAS_GROUP (GNOME_CANVAS (cal)->root);
cal->priv->calitem = E_CALENDAR_ITEM (
gnome_canvas_item_new (
canvas_group,
e_calendar_item_get_type (),
"week_number_font_desc", small_font_desc,
NULL));
pango_font_description_free (small_font_desc);
g_object_unref (pango_context);
g_signal_connect (cal->priv->calitem, "month-width-changed",
G_CALLBACK (calitem_month_width_changed_cb), cal);
/* Create the arrow buttons to move to the previous/next month. */
button = e_calendar_create_button (GTK_ARROW_LEFT);
g_signal_connect_swapped (
button, "pressed",
G_CALLBACK (e_calendar_on_prev_pressed), cal);
g_signal_connect_swapped (
button, "released",
G_CALLBACK (e_calendar_on_prev_released), cal);
g_signal_connect_swapped (
button, "clicked",
G_CALLBACK (e_calendar_on_prev_clicked), cal);
cal->priv->prev_item = gnome_canvas_item_new (
canvas_group,
gnome_canvas_widget_get_type (),
"widget", button,
NULL);
a11y = gtk_widget_get_accessible (button);
atk_object_set_name (a11y, _("Previous month"));
button = e_calendar_create_button (GTK_ARROW_RIGHT);
g_signal_connect_swapped (
button, "pressed",
G_CALLBACK (e_calendar_on_next_pressed), cal);
g_signal_connect_swapped (
button, "released",
G_CALLBACK (e_calendar_on_next_released), cal);
g_signal_connect_swapped (
button, "clicked",
G_CALLBACK (e_calendar_on_next_clicked), cal);
cal->priv->next_item = gnome_canvas_item_new (
canvas_group,
gnome_canvas_widget_get_type (),
"widget", button,
NULL);
a11y = gtk_widget_get_accessible (button);
atk_object_set_name (a11y, _("Next month"));
/* Create the arrow buttons to move to the previous/next year. */
button = e_calendar_create_button (GTK_ARROW_LEFT);
g_signal_connect_swapped (
button, "pressed",
G_CALLBACK (e_calendar_on_prev_year_pressed), cal);
g_signal_connect_swapped (
button, "released",
G_CALLBACK (e_calendar_on_prev_year_released), cal);
g_signal_connect_swapped (
button, "clicked",
G_CALLBACK (e_calendar_on_prev_year_clicked), cal);
cal->priv->prev_item_year = gnome_canvas_item_new (
canvas_group,
gnome_canvas_widget_get_type (),
"widget", button,
NULL);
a11y = gtk_widget_get_accessible (button);
atk_object_set_name (a11y, _("Previous year"));
button = e_calendar_create_button (GTK_ARROW_RIGHT);
g_signal_connect_swapped (
button, "pressed",
G_CALLBACK (e_calendar_on_next_year_pressed), cal);
g_signal_connect_swapped (
button, "released",
G_CALLBACK (e_calendar_on_next_year_released), cal);
g_signal_connect_swapped (
button, "clicked",
G_CALLBACK (e_calendar_on_next_year_clicked), cal);
cal->priv->next_item_year = gnome_canvas_item_new (
canvas_group,
gnome_canvas_widget_get_type (),
"widget", button,
NULL);
a11y = gtk_widget_get_accessible (button);
atk_object_set_name (a11y, _("Next year"));
cal->priv->min_rows = 1;
cal->priv->min_cols = 1;
cal->priv->max_rows = -1;
cal->priv->max_cols = -1;
cal->priv->timeout_id = 0;
}
/**
* e_calendar_new:
* @Returns: a new #ECalendar.
*
* Creates a new #ECalendar.
**/
GtkWidget *
e_calendar_new (void)
{
GtkWidget *cal;
AtkObject *a11y;
cal = g_object_new (e_calendar_get_type (), NULL);
a11y = gtk_widget_get_accessible (cal);
atk_object_set_name (a11y, _("Month Calendar"));
return cal;
}
ECalendarItem *
e_calendar_get_item (ECalendar *cal)
{
g_return_val_if_fail (E_IS_CALENDAR (cal), NULL);
return cal->priv->calitem;
}
static void
e_calendar_dispose (GObject *object)
{
ECalendar *cal;
g_return_if_fail (object != NULL);
g_return_if_fail (E_IS_CALENDAR (object));
cal = E_CALENDAR (object);
if (cal->priv->timeout_id != 0) {
g_source_remove (cal->priv->timeout_id);
cal->priv->timeout_id = 0;
}
if (cal->priv->reposition_timeout_id) {
g_source_remove (cal->priv->reposition_timeout_id);
cal->priv->reposition_timeout_id = 0;
}
/* Chain up to parent's dispose() method. */
G_OBJECT_CLASS (e_calendar_parent_class)->dispose (object);
}
static void
e_calendar_update_window_background (GtkWidget *widget)
{
GdkWindow *window;
GdkRGBA bg_bg;
e_utils_get_theme_color (widget, "theme_bg_color", E_UTILS_DEFAULT_THEME_BG_COLOR, &bg_bg);
/* Set the background of the canvas window to the normal color,
* or the arrow buttons are not displayed properly. */
window = gtk_layout_get_bin_window (GTK_LAYOUT (widget));
gdk_window_set_background_rgba (window, &bg_bg);
}
static void
e_calendar_realize (GtkWidget *widget)
{
(*GTK_WIDGET_CLASS (e_calendar_parent_class)->realize) (widget);
e_calendar_update_window_background (widget);
}
static void
e_calendar_style_updated (GtkWidget *widget)
{
ECalendar *e_calendar;
e_calendar = E_CALENDAR (widget);
if (GTK_WIDGET_CLASS (e_calendar_parent_class)->style_updated)
(*GTK_WIDGET_CLASS (e_calendar_parent_class)->style_updated) (widget);
/* Set the background of the canvas window to the normal color,
* or the arrow buttons are not displayed properly. */
if (gtk_widget_get_realized (widget))
e_calendar_update_window_background (widget);
e_calendar_item_style_updated (widget, e_calendar->priv->calitem);
}
static void
e_calendar_get_preferred_width (GtkWidget *widget,
gint *minimum,
gint *natural)
{
ECalendar *cal;
GtkStyleContext *style_context;
GtkBorder padding;
gint col_width;
cal = E_CALENDAR (widget);
g_object_get ((cal->priv->calitem), "column_width", &col_width, NULL);
style_context = gtk_widget_get_style_context (widget);
gtk_style_context_get_padding (style_context, gtk_style_context_get_state (style_context), &padding);
*minimum = *natural = col_width * cal->priv->min_cols + padding.left * 2;
}
static void
e_calendar_get_preferred_height (GtkWidget *widget,
gint *minimum,
gint *natural)
{
ECalendar *cal;
GtkStyleContext *style_context;
GtkBorder padding;
gint row_height;
cal = E_CALENDAR (widget);
g_object_get ((cal->priv->calitem), "row_height", &row_height, NULL);
style_context = gtk_widget_get_style_context (widget);
gtk_style_context_get_padding (style_context, gtk_style_context_get_state (style_context), &padding);
*minimum = *natural = row_height * cal->priv->min_rows + padding.top * 2;
}
static gboolean
e_calendar_reposition_timeout_cb (gpointer user_data)
{
ECalendar *cal = user_data;
GtkWidget *widget;
GtkStyleContext *style_context;
GtkBorder padding;
GtkAllocation old_allocation;
PangoContext *pango_context;
PangoFontMetrics *font_metrics;
gdouble old_x2, old_y2, new_x2, new_y2;
gdouble xthickness, ythickness, arrow_button_size, current_x, month_width;
gboolean is_rtl;
g_return_val_if_fail (E_IS_CALENDAR (cal), FALSE);
cal->priv->reposition_timeout_id = 0;
widget = GTK_WIDGET (cal);
style_context = gtk_widget_get_style_context (widget);
gtk_style_context_get_padding (style_context, gtk_style_context_get_state (style_context), &padding);
xthickness = padding.left;
ythickness = padding.top;
/* Set up Pango prerequisites */
pango_context = gtk_widget_get_pango_context (widget);
font_metrics = pango_context_get_metrics (
pango_context, NULL,
pango_context_get_language (pango_context));
/* Set the scroll region to its allocated size, if changed. */
gnome_canvas_get_scroll_region (
GNOME_CANVAS (cal),
NULL, NULL, &old_x2, &old_y2);
gtk_widget_get_allocation (widget, &old_allocation);
new_x2 = old_allocation.width - 1;
new_y2 = old_allocation.height - 1;
if (old_x2 != new_x2 || old_y2 != new_y2)
gnome_canvas_set_scroll_region (
GNOME_CANVAS (cal),
0, 0, new_x2, new_y2);
/* Take off space for line & buttons if shown. */
gnome_canvas_item_set (
GNOME_CANVAS_ITEM (cal->priv->calitem),
"x1", 0.0,
"y1", 0.0,
"x2", new_x2,
"y2", new_y2,
NULL);
if (cal->priv->calitem->month_width > 0)
month_width = cal->priv->calitem->month_width;
else
month_width = new_x2;
month_width -= E_CALENDAR_ITEM_MIN_CELL_XPAD + E_CALENDAR_ARROW_BUTTON_X_PAD;
/* Position the arrow buttons. */
arrow_button_size =
PANGO_PIXELS (pango_font_metrics_get_ascent (font_metrics))
+ PANGO_PIXELS (pango_font_metrics_get_descent (font_metrics))
+ E_CALENDAR_ITEM_YPAD_ABOVE_MONTH_NAME
+ E_CALENDAR_ITEM_YPAD_BELOW_MONTH_NAME
- E_CALENDAR_ARROW_BUTTON_Y_PAD * 2 - 2;
is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
current_x = is_rtl ?
(month_width - 2 * xthickness - E_CALENDAR_ARROW_BUTTON_X_PAD - arrow_button_size) :
(xthickness);
gnome_canvas_item_set (
cal->priv->prev_item,
"x", current_x,
"y", ythickness + E_CALENDAR_ARROW_BUTTON_Y_PAD,
"width", arrow_button_size,
"height", arrow_button_size,
NULL);
current_x += (is_rtl ? -1.0 : +1.0) * (cal->priv->calitem->max_month_name_width - xthickness + 2 * arrow_button_size);
gnome_canvas_item_set (
cal->priv->next_item,
"x", current_x,
"y", ythickness + E_CALENDAR_ARROW_BUTTON_Y_PAD,
"width", arrow_button_size,
"height", arrow_button_size,
NULL);
current_x = is_rtl ?
(xthickness) :
(month_width - 2 * xthickness - E_CALENDAR_ARROW_BUTTON_X_PAD - arrow_button_size);
gnome_canvas_item_set (
cal->priv->next_item_year,
"x", current_x,
"y", ythickness + E_CALENDAR_ARROW_BUTTON_Y_PAD,
"width", arrow_button_size,
"height", arrow_button_size,
NULL);
current_x += (is_rtl ? +1.0 : -1.0) * (cal->priv->calitem->max_digit_width * 5 - xthickness + 2 * arrow_button_size);
gnome_canvas_item_set (
cal->priv->prev_item_year,
"x", current_x,
"y", ythickness + E_CALENDAR_ARROW_BUTTON_Y_PAD,
"width", arrow_button_size,
"height", arrow_button_size,
NULL);
pango_font_metrics_unref (font_metrics);
return FALSE;
}
static void
e_calendar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
ECalendar *cal;
(*GTK_WIDGET_CLASS (e_calendar_parent_class)->size_allocate) (widget, allocation);
cal = E_CALENDAR (widget);
if (cal->priv->reposition_timeout_id) {
g_source_remove (cal->priv->reposition_timeout_id);
cal->priv->reposition_timeout_id = 0;
}
cal->priv->reposition_timeout_id =
g_timeout_add (1, e_calendar_reposition_timeout_cb, widget);
}
void
e_calendar_set_minimum_size (ECalendar *cal,
gint rows,
gint cols)
{
g_return_if_fail (E_IS_CALENDAR (cal));
cal->priv->min_rows = rows;
cal->priv->min_cols = cols;
gnome_canvas_item_set (
GNOME_CANVAS_ITEM (cal->priv->calitem),
"minimum_rows", rows,
"minimum_columns", cols,
NULL);
gtk_widget_queue_resize (GTK_WIDGET (cal));
}
void
e_calendar_set_maximum_size (ECalendar *cal,
gint rows,
gint cols)
{
g_return_if_fail (E_IS_CALENDAR (cal));
cal->priv->max_rows = rows;
cal->priv->max_cols = cols;
gnome_canvas_item_set (
GNOME_CANVAS_ITEM (cal->priv->calitem),
"maximum_rows", rows,
"maximum_columns", cols,
NULL);
gtk_widget_queue_resize (GTK_WIDGET (cal));
}
/* Returns the border size on each side of the month displays. */
void
e_calendar_get_border_size (ECalendar *cal,
gint *top,
gint *bottom,
gint *left,
gint *right)
{
GtkStyleContext *style_context;
g_return_if_fail (E_IS_CALENDAR (cal));
style_context = gtk_widget_get_style_context (GTK_WIDGET (cal));
if (style_context) {
GtkBorder padding;
gtk_style_context_get_padding (style_context, gtk_style_context_get_state (style_context), &padding);
*top = padding.top;
*bottom = padding.top;
*left = padding.left;
*right = padding.left;
} else {
*top = *bottom = *left = *right = 0;
}
}
static void
e_calendar_on_prev_pressed (ECalendar *cal)
{
e_calendar_start_auto_move (cal, FALSE);
}
static void
e_calendar_on_next_pressed (ECalendar *cal)
{
e_calendar_start_auto_move (cal, TRUE);
}
static void
e_calendar_on_prev_year_pressed (ECalendar *cal)
{
e_calendar_start_auto_move_year (cal, FALSE);
}
static void
e_calendar_on_next_year_pressed (ECalendar *cal)
{
e_calendar_start_auto_move_year (cal, TRUE);
}
static void
e_calendar_start_auto_move (ECalendar *cal,
gboolean moving_forward)
{
if (cal->priv->timeout_id == 0) {
cal->priv->timeout_id = e_named_timeout_add (
E_CALENDAR_AUTO_MOVE_TIMEOUT,
e_calendar_auto_move_handler, cal);
}
cal->priv->timeout_delay = E_CALENDAR_AUTO_MOVE_TIMEOUT_DELAY;
cal->priv->moving_forward = moving_forward;
}
static void
e_calendar_start_auto_move_year (ECalendar *cal,
gboolean moving_forward)
{
if (cal->priv->timeout_id == 0) {
cal->priv->timeout_id = e_named_timeout_add (
E_CALENDAR_AUTO_MOVE_TIMEOUT,
e_calendar_auto_move_year_handler, cal);
}
cal->priv->timeout_delay = E_CALENDAR_AUTO_MOVE_TIMEOUT_DELAY;
cal->priv->moving_forward = moving_forward;
}
static gboolean
e_calendar_auto_move_year_handler (gpointer data)
{
ECalendar *cal;
ECalendarItem *calitem;
gint offset;
g_return_val_if_fail (E_IS_CALENDAR (data), FALSE);
cal = E_CALENDAR (data);
calitem = cal->priv->calitem;
if (cal->priv->timeout_delay > 0) {
cal->priv->timeout_delay--;
} else {
offset = cal->priv->moving_forward ? 12 : -12;
e_calendar_item_set_first_month (
calitem, calitem->year,
calitem->month + offset);
}
return TRUE;
}
static gboolean
e_calendar_auto_move_handler (gpointer data)
{
ECalendar *cal;
ECalendarItem *calitem;
gint offset;
g_return_val_if_fail (E_IS_CALENDAR (data), FALSE);
cal = E_CALENDAR (data);
calitem = cal->priv->calitem;
if (cal->priv->timeout_delay > 0) {
cal->priv->timeout_delay--;
} else {
offset = cal->priv->moving_forward ? 1 : -1;
e_calendar_item_set_first_month (
calitem, calitem->year,
calitem->month + offset);
}
return TRUE;
}
static void
e_calendar_on_prev_released (ECalendar *cal)
{
e_calendar_stop_auto_move (cal);
}
static void
e_calendar_on_next_released (ECalendar *cal)
{
e_calendar_stop_auto_move (cal);
}
static void
e_calendar_on_prev_year_released (ECalendar *cal)
{
e_calendar_stop_auto_move (cal);
}
static void
e_calendar_on_next_year_released (ECalendar *cal)
{
e_calendar_stop_auto_move (cal);
}
static void
e_calendar_stop_auto_move (ECalendar *cal)
{
if (cal->priv->timeout_id != 0) {
g_source_remove (cal->priv->timeout_id);
cal->priv->timeout_id = 0;
}
}
static void
e_calendar_on_prev_clicked (ECalendar *cal)
{
e_calendar_item_set_first_month (
cal->priv->calitem, cal->priv->calitem->year,
cal->priv->calitem->month - 1);
}
static void
e_calendar_on_next_clicked (ECalendar *cal)
{
e_calendar_item_set_first_month (
cal->priv->calitem, cal->priv->calitem->year,
cal->priv->calitem->month + 1);
}
static void
e_calendar_on_prev_year_clicked (ECalendar *cal)
{
e_calendar_item_set_first_month (
cal->priv->calitem, cal->priv->calitem->year,
cal->priv->calitem->month - 12);
}
static void
e_calendar_on_next_year_clicked (ECalendar *cal)
{
e_calendar_item_set_first_month (
cal->priv->calitem, cal->priv->calitem->year,
cal->priv->calitem->month + 12);
}
static gint
e_calendar_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
return FALSE;
}
static void
e_calendar_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time)
{
}
static gboolean
e_calendar_button_has_focus (ECalendar *cal)
{
GtkWidget *prev_widget, *next_widget;
gboolean ret_val;
g_return_val_if_fail (E_IS_CALENDAR (cal), FALSE);
prev_widget = GNOME_CANVAS_WIDGET (cal->priv->prev_item)->widget;
next_widget = GNOME_CANVAS_WIDGET (cal->priv->next_item)->widget;
ret_val = gtk_widget_has_focus (prev_widget) ||
gtk_widget_has_focus (next_widget);
return ret_val;
}
static gboolean
e_calendar_focus (GtkWidget *widget,
GtkDirectionType direction)
{
#define E_CALENDAR_FOCUS_CHILDREN_NUM 5
ECalendar *cal;
GnomeCanvas *canvas;
GnomeCanvasItem *children[E_CALENDAR_FOCUS_CHILDREN_NUM];
gint focused_index = -1;
gint index;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (E_IS_CALENDAR (widget), FALSE);
cal = E_CALENDAR (widget);
canvas = GNOME_CANVAS (widget);
if (!gtk_widget_get_can_focus (widget))
return FALSE;
children[0] = GNOME_CANVAS_ITEM (cal->priv->calitem);
children[1] = cal->priv->prev_item;
children[2] = cal->priv->next_item;
children[3] = cal->priv->prev_item_year;
children[4] = cal->priv->next_item_year;
/* get current focused item, if e-calendar has had focus */
if (gtk_widget_has_focus (widget) || e_calendar_button_has_focus (cal))
for (index = 0; index < E_CALENDAR_FOCUS_CHILDREN_NUM; ++index) {
if (canvas->focused_item == NULL)
break;
if (children[index] == canvas->focused_item) {
focused_index = index;
break;
}
}
if (focused_index == -1)
if (direction == GTK_DIR_TAB_FORWARD)
focused_index = 0;
else
focused_index = E_CALENDAR_FOCUS_CHILDREN_NUM - 1;
else
if (direction == GTK_DIR_TAB_FORWARD)
++focused_index;
else
--focused_index;
if (focused_index < 0 ||
focused_index >= E_CALENDAR_FOCUS_CHILDREN_NUM)
/* move out of e-calendar */
return FALSE;
gnome_canvas_item_grab_focus (children[focused_index]);
if (GNOME_IS_CANVAS_WIDGET (children[focused_index])) {
widget = GNOME_CANVAS_WIDGET (children[focused_index])->widget;
gtk_widget_grab_focus (widget);
}
return TRUE;
}
void
e_calendar_set_focusable (ECalendar *cal,
gboolean focusable)
{
GtkWidget *widget;
GtkWidget *prev_widget, *next_widget;
GtkWidget *toplevel;
g_return_if_fail (E_IS_CALENDAR (cal));
widget = GTK_WIDGET (cal);
prev_widget = GNOME_CANVAS_WIDGET (cal->priv->prev_item)->widget;
next_widget = GNOME_CANVAS_WIDGET (cal->priv->next_item)->widget;
if (focusable) {
gtk_widget_set_can_focus (widget, TRUE);
gtk_widget_set_can_focus (prev_widget, TRUE);
gtk_widget_set_can_focus (next_widget, TRUE);
}
else {
if (gtk_widget_has_focus (GTK_WIDGET (cal)) ||
e_calendar_button_has_focus (cal)) {
toplevel = gtk_widget_get_toplevel (widget);
if (toplevel)
gtk_widget_grab_focus (toplevel);
}
gtk_widget_set_can_focus (widget, FALSE);
gtk_widget_set_can_focus (prev_widget, FALSE);
gtk_widget_set_can_focus (next_widget, FALSE);
}
}