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Bug #519090. Add accessibility support to GtkScaleButton. Support action

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2009-02-26  Li Yuan  <li.yuan@sun.com>

        * Makefile.am:
        * gail.c: (gail_accessibility_module_init):
        * gail.h:
        * gailscalebutton.c: (gail_scale_button_class_init),
        (gail_scale_button_init), (gail_scale_button_initialize),
        (atk_action_interface_init), (gail_scale_button_do_action),
        (gail_scale_button_get_n_actions),
        (gail_scale_button_get_description),
        (gail_scale_button_action_get_name),
        (gail_scale_button_get_keybinding),
        (gail_scale_button_set_description), (atk_value_interface_init),
        (gail_scale_button_get_current_value),
        (gail_scale_button_get_maximum_value),
        (gail_scale_button_get_minimum_value),
        (gail_scale_button_get_minimum_increment),
        (gail_scale_button_set_current_value),
        (gail_scale_button_notify_gtk):
        * gailscalebutton.h:
        Bug #519090. Add accessibility support to GtkScaleButton.
        Support action and value interfaces. Patch from Jan Arne 
Petersen.

svn path=/trunk/; revision=22411
This commit is contained in:
Li Yuan 2009-02-26 07:58:30 +00:00 committed by Li Yuan
parent f1ba45a780
commit a0b3a069f1
6 changed files with 381 additions and 0 deletions
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23
modules/other/gail/ChangeLog
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@ -1,3 +1,26 @@
2009-02-26 Li Yuan <li.yuan@sun.com>
* Makefile.am:
* gail.c: (gail_accessibility_module_init):
* gail.h:
* gailscalebutton.c: (gail_scale_button_class_init),
(gail_scale_button_init), (gail_scale_button_initialize),
(atk_action_interface_init), (gail_scale_button_do_action),
(gail_scale_button_get_n_actions),
(gail_scale_button_get_description),
(gail_scale_button_action_get_name),
(gail_scale_button_get_keybinding),
(gail_scale_button_set_description), (atk_value_interface_init),
(gail_scale_button_get_current_value),
(gail_scale_button_get_maximum_value),
(gail_scale_button_get_minimum_value),
(gail_scale_button_get_minimum_increment),
(gail_scale_button_set_current_value),
(gail_scale_button_notify_gtk):
* gailscalebutton.h:
Bug #519090. Add accessibility support to GtkScaleButton.
Support action and value interfaces. Patch from Jan Arne Petersen.
2009-02-26 Li Yuan <li.yuan@sun.com>
* gailbutton.c: (idle_do_action):

2
modules/other/gail/Makefile.am
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@ -52,6 +52,7 @@ gail_c_sources = \
gailrange.c \
gailrenderercell.c \
gailscale.c \
gailscalebutton.c \
gailscrollbar.c \
gailscrolledwindow.c \
gailseparator.c \
@ -112,6 +113,7 @@ gail_private_h_sources = \
gailrange.h \
gailrenderercell.h \
gailscale.h \
gailscalebutton.h \
gailscrollbar.h \
gailscrolledwindow.h \
gailseparator.h \

2
modules/other/gail/gail.c
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@ -90,6 +90,7 @@ GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_MENU, GailMenu, gail_menu, GTK_TYPE_MENU)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_WINDOW, GailWindow, gail_window, GTK_TYPE_BIN)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_RANGE, GailRange, gail_range, GTK_TYPE_RANGE)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_SCALE, GailScale, gail_scale, GTK_TYPE_SCALE)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_SCALE_BUTTON, GailScaleButton, gail_scale_button, GTK_TYPE_SCALE_BUTTON)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_CLIST, GailCList, gail_clist, GTK_TYPE_CLIST)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_LABEL, GailLabel, gail_label, GTK_TYPE_LABEL)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_STATUSBAR, GailStatusbar, gail_statusbar, GTK_TYPE_STATUSBAR)
@ -903,6 +904,7 @@ gail_accessibility_module_init (void)
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_WINDOW, gail_window);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_RANGE, gail_range);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_SCALE, gail_scale);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_SCALE_BUTTON, gail_scale_button);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_CLIST, gail_clist);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_LABEL, gail_label);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_STATUSBAR, gail_statusbar);

1
modules/other/gail/gail.h
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@ -34,6 +34,7 @@
#include <gail/gailrenderercell.h>
#include <gail/gailrange.h>
#include <gail/gailscale.h>
#include <gail/gailscalebutton.h>
#include <gail/gailscrollbar.h>
#include <gail/gailscrolledwindow.h>
#include <gail/gailseparator.h>

301
modules/other/gail/gailscalebutton.c Normal file
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@ -0,0 +1,301 @@
/* GAIL - The GNOME Accessibility Implementation Library
* Copyright 2008 Jan Arne Petersen
*
* This library 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) any later version.
*
* This library 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 this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <gtk/gtk.h>
#include "gailscalebutton.h"
#include "gailadjustment.h"
#include "gail-private-macros.h"
#include <string.h>
static void gail_scale_button_class_init (GailScaleButtonClass *klass);
static void gail_scale_button_init (GailScaleButton *button);
/* GailWidget */
static void gail_scale_button_notify_gtk (GObject *obj,
GParamSpec *pspec);
/* AtkObject */
static void gail_scale_button_initialize (AtkObject *obj,
gpointer data);
/* AtkAction */
static void atk_action_interface_init (AtkActionIface *iface);
static gboolean gail_scale_button_do_action (AtkAction *action,
gint i);
static gint gail_scale_button_get_n_actions (AtkAction *action);
static G_CONST_RETURN gchar* gail_scale_button_get_description(AtkAction *action,
gint i);
static G_CONST_RETURN gchar* gail_scale_button_action_get_name(AtkAction *action,
gint i);
static G_CONST_RETURN gchar* gail_scale_button_get_keybinding (AtkAction *action,
gint i);
static gboolean gail_scale_button_set_description(AtkAction *action,
gint i,
const gchar *desc);
/* AtkValue */
static void atk_value_interface_init (AtkValueIface *iface);
static void gail_scale_button_get_current_value (AtkValue *obj,
GValue *value);
static void gail_scale_button_get_maximum_value (AtkValue *obj,
GValue *value);
static void gail_scale_button_get_minimum_value (AtkValue *obj,
GValue *value);
static void gail_scale_button_get_minimum_increment (AtkValue *obj,
GValue *value);
static gboolean gail_scale_button_set_current_value (AtkValue *obj,
const GValue *value);
G_DEFINE_TYPE_WITH_CODE (GailScaleButton, gail_scale_button, GAIL_TYPE_BUTTON,
G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init)
G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init));
static void
gail_scale_button_class_init (GailScaleButtonClass *klass)
{
AtkObjectClass *atk_object_class = ATK_OBJECT_CLASS (klass);
GailWidgetClass *widget_class = GAIL_WIDGET_CLASS (klass);
atk_object_class->initialize = gail_scale_button_initialize;
widget_class->notify_gtk = gail_scale_button_notify_gtk;
}
static void
gail_scale_button_init (GailScaleButton *button)
{
}
static void
gail_scale_button_initialize (AtkObject *obj,
gpointer data)
{
ATK_OBJECT_CLASS (gail_scale_button_parent_class)->initialize (obj, data);
obj->role = ATK_ROLE_SLIDER;
}
static void
atk_action_interface_init (AtkActionIface *iface)
{
iface->do_action = gail_scale_button_do_action;
iface->get_n_actions = gail_scale_button_get_n_actions;
iface->get_description = gail_scale_button_get_description;
iface->get_keybinding = gail_scale_button_get_keybinding;
iface->get_name = gail_scale_button_action_get_name;
iface->set_description = gail_scale_button_set_description;
}
static gboolean
gail_scale_button_do_action(AtkAction *action,
gint i)
{
GtkWidget *widget;
widget = GTK_ACCESSIBLE (action)->widget;
if (widget == NULL)
return FALSE;
if (!GTK_WIDGET_IS_SENSITIVE (widget) || !GTK_WIDGET_VISIBLE (widget))
return FALSE;
switch (i) {
case 0:
g_signal_emit_by_name (widget, "popup");
return TRUE;
case 1:
g_signal_emit_by_name (widget, "podown");
return TRUE;
default:
return FALSE;
}
}
static gint
gail_scale_button_get_n_actions (AtkAction *action)
{
return 2;
}
static G_CONST_RETURN gchar*
gail_scale_button_get_description (AtkAction *action,
gint i)
{
return NULL;
}
static G_CONST_RETURN gchar*
gail_scale_button_action_get_name (AtkAction *action,
gint i)
{
switch (i) {
case 0:
return "popup";
case 1:
return "popdown";
default:
return NULL;
}
}
static G_CONST_RETURN gchar*
gail_scale_button_get_keybinding (AtkAction *action,
gint i)
{
return NULL;
}
static gboolean
gail_scale_button_set_description (AtkAction *action,
gint i,
const gchar *desc)
{
return FALSE;
}
static void
atk_value_interface_init (AtkValueIface *iface)
{
iface->get_current_value = gail_scale_button_get_current_value;
iface->get_maximum_value = gail_scale_button_get_maximum_value;
iface->get_minimum_value = gail_scale_button_get_minimum_value;
iface->get_minimum_increment = gail_scale_button_get_minimum_increment;
iface->set_current_value = gail_scale_button_set_current_value;
}
static void
gail_scale_button_get_current_value (AtkValue *obj,
GValue *value)
{
GailScaleButton *scale_button;
GtkScaleButton *gtk_scale_button;
g_return_if_fail (GAIL_IS_SCALE_BUTTON (obj));
scale_button = GAIL_SCALE_BUTTON (obj);
gtk_scale_button = GTK_SCALE_BUTTON (GTK_ACCESSIBLE (obj)->widget);
g_value_set_double (g_value_init (value, G_TYPE_DOUBLE),
gtk_scale_button_get_value (gtk_scale_button));
}
static void
gail_scale_button_get_maximum_value (AtkValue *obj,
GValue *value)
{
GtkWidget *gtk_widget;
GtkAdjustment *adj;
g_return_if_fail (GAIL_IS_SCALE_BUTTON (obj));
gtk_widget = GTK_ACCESSIBLE (obj)->widget;
if (gtk_widget == NULL)
return;
adj = gtk_scale_button_get_adjustment (GTK_SCALE_BUTTON (gtk_widget));
if (adj != NULL)
g_value_set_double (g_value_init (value, G_TYPE_DOUBLE),
adj->upper);
}
static void
gail_scale_button_get_minimum_value (AtkValue *obj,
GValue *value)
{
GtkWidget *gtk_widget;
GtkAdjustment *adj;
g_return_if_fail (GAIL_IS_SCALE_BUTTON (obj));
gtk_widget = GTK_ACCESSIBLE (obj)->widget;
if (gtk_widget == NULL)
return;
adj = gtk_scale_button_get_adjustment (GTK_SCALE_BUTTON (gtk_widget));
if (adj != NULL)
g_value_set_double (g_value_init (value, G_TYPE_DOUBLE),
adj->lower);
}
static void
gail_scale_button_get_minimum_increment (AtkValue *obj,
GValue *value)
{
GtkWidget *gtk_widget;
GtkAdjustment *adj;
g_return_if_fail (GAIL_IS_SCALE_BUTTON (obj));
gtk_widget = GTK_ACCESSIBLE (obj)->widget;
if (gtk_widget == NULL)
return;
adj = gtk_scale_button_get_adjustment (GTK_SCALE_BUTTON (gtk_widget));
if (adj != NULL)
g_value_set_double (g_value_init (value, G_TYPE_DOUBLE),
adj->step_increment);
}
static gboolean
gail_scale_button_set_current_value (AtkValue *obj,
const GValue *value)
{
GtkWidget *gtk_widget;
g_return_val_if_fail (GAIL_IS_SCALE_BUTTON (obj), FALSE);
gtk_widget = GTK_ACCESSIBLE (obj)->widget;
if (gtk_widget == NULL)
return FALSE;
if (G_VALUE_HOLDS_DOUBLE (value))
{
gtk_scale_button_set_value (GTK_SCALE_BUTTON (gtk_widget), g_value_get_double (value));
return TRUE;
}
return FALSE;
}
static void
gail_scale_button_notify_gtk (GObject *obj,
GParamSpec *pspec)
{
GtkScaleButton *gtk_scale_button;
GailScaleButton *scale_button;
g_return_if_fail (GTK_IS_SCALE_BUTTON (obj));
gtk_scale_button = GTK_SCALE_BUTTON (obj);
scale_button = GAIL_SCALE_BUTTON (gtk_widget_get_accessible (GTK_WIDGET (gtk_scale_button)));
if (strcmp (pspec->name, "value") == 0)
{
g_object_notify (G_OBJECT (scale_button), "accessible-value");
}
else
{
GAIL_WIDGET_CLASS (gail_scale_button_parent_class)->notify_gtk (obj, pspec);
}
}

52
modules/other/gail/gailscalebutton.h Normal file
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@ -0,0 +1,52 @@
/* GAIL - The GNOME Accessibility Implementation Library
* Copyright 2008 Jan Arne Petersen <jap@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GAIL_SCALE_BUTTON_H__
#define __GAIL_SCALE_BUTTON_H__
#include <gtk/gtk.h>
#include <gail/gailbutton.h>
G_BEGIN_DECLS
#define GAIL_TYPE_SCALE_BUTTON (gail_scale_button_get_type ())
#define GAIL_SCALE_BUTTON(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GAIL_TYPE_SCALE_BUTTON, GailScaleButton))
#define GAIL_SCALE_BUTTON_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GAIL_TYPE_SCALE_BUTTON, GailScaleButtonClass))
#define GAIL_IS_SCALE_BUTTON(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GAIL_TYPE_SCALE_BUTTON))
#define GAIL_IS_SCALE_BUTTON_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GAIL_TYPE_SCALE_BUTTON))
#define GAIL_SCALE_BUTTON_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GAIL_TYPE_SCALE_BUTTON, GailScaleButtonClass))
typedef struct _GailScaleButton GailScaleButton;
typedef struct _GailScaleButtonClass GailScaleButtonClass;
struct _GailScaleButton
{
GailButton parent;
};
struct _GailScaleButtonClass
{
GailButtonClass parent_class;
};
GType gail_scale_button_get_type (void);
G_END_DECLS
#endif /* __GAIL_SCALE_BUTTON_H__ */