forked from AuroraMiddleware/gtk
893 lines
27 KiB
C
893 lines
27 KiB
C
/* GAIL - The GNOME Accessibility Implementation Library
|
|
* Copyright 2003 Sun Microsystems Inc.
|
|
*
|
|
* 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 <string.h>
|
|
#include <gtk/gtk.h>
|
|
#include <gdk/gdkkeysyms.h>
|
|
#include "gailexpander.h"
|
|
#include <libgail-util/gailmisc.h>
|
|
|
|
static void gail_expander_class_init (GailExpanderClass *klass);
|
|
static void gail_expander_init (GailExpander *expander);
|
|
|
|
static G_CONST_RETURN gchar* gail_expander_get_name (AtkObject *obj);
|
|
static gint gail_expander_get_n_children (AtkObject *obj)
|
|
;
|
|
static AtkObject* gail_expander_ref_child (AtkObject *obj,
|
|
gint i);
|
|
|
|
static AtkStateSet* gail_expander_ref_state_set (AtkObject *obj);
|
|
static void gail_expander_real_notify_gtk (GObject *obj,
|
|
GParamSpec *pspec);
|
|
static void gail_expander_map_gtk (GtkWidget *widget,
|
|
gpointer data);
|
|
|
|
static void gail_expander_real_initialize (AtkObject *obj,
|
|
gpointer data);
|
|
static void gail_expander_finalize (GObject *object);
|
|
static void gail_expander_init_textutil (GailExpander *expander,
|
|
GtkExpander *widget);
|
|
static G_CONST_RETURN gchar* gail_expander_get_full_text (GtkExpander *widget);
|
|
|
|
static void atk_action_interface_init (AtkActionIface *iface);
|
|
static gboolean gail_expander_do_action (AtkAction *action,
|
|
gint i);
|
|
static gboolean idle_do_action (gpointer data);
|
|
static gint gail_expander_get_n_actions(AtkAction *action);
|
|
static G_CONST_RETURN gchar* gail_expander_get_description
|
|
(AtkAction *action,
|
|
gint i);
|
|
static G_CONST_RETURN gchar* gail_expander_get_keybinding
|
|
(AtkAction *action,
|
|
gint i);
|
|
static G_CONST_RETURN gchar* gail_expander_action_get_name
|
|
(AtkAction *action,
|
|
gint i);
|
|
static gboolean gail_expander_set_description
|
|
(AtkAction *action,
|
|
gint i,
|
|
const gchar *desc);
|
|
|
|
/* atktext.h */
|
|
static void atk_text_interface_init (AtkTextIface *iface);
|
|
|
|
static gchar* gail_expander_get_text (AtkText *text,
|
|
gint start_pos,
|
|
gint end_pos);
|
|
static gunichar gail_expander_get_character_at_offset
|
|
(AtkText *text,
|
|
gint offset);
|
|
static gchar* gail_expander_get_text_before_offset
|
|
(AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset);
|
|
static gchar* gail_expander_get_text_at_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset);
|
|
static gchar* gail_expander_get_text_after_offset
|
|
(AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset);
|
|
static gint gail_expander_get_character_count(AtkText *text);
|
|
static void gail_expander_get_character_extents (AtkText *text,
|
|
gint offset,
|
|
gint *x,
|
|
gint *y,
|
|
gint *width,
|
|
gint *height,
|
|
AtkCoordType coords);
|
|
static gint gail_expander_get_offset_at_point (AtkText *text,
|
|
gint x,
|
|
gint y,
|
|
AtkCoordType coords);
|
|
static AtkAttributeSet* gail_expander_get_run_attributes
|
|
(AtkText *text,
|
|
gint offset,
|
|
gint *start_offset,
|
|
gint *end_offset);
|
|
static AtkAttributeSet* gail_expander_get_default_attributes
|
|
(AtkText *text);
|
|
|
|
G_DEFINE_TYPE_WITH_CODE (GailExpander, gail_expander, GAIL_TYPE_CONTAINER,
|
|
G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init)
|
|
G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, atk_text_interface_init))
|
|
|
|
static void
|
|
gail_expander_class_init (GailExpanderClass *klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
|
|
GailWidgetClass *widget_class;
|
|
|
|
widget_class = (GailWidgetClass*)klass;
|
|
widget_class->notify_gtk = gail_expander_real_notify_gtk;
|
|
|
|
gobject_class->finalize = gail_expander_finalize;
|
|
|
|
class->get_name = gail_expander_get_name;
|
|
class->get_n_children = gail_expander_get_n_children;
|
|
class->ref_child = gail_expander_ref_child;
|
|
class->ref_state_set = gail_expander_ref_state_set;
|
|
|
|
class->initialize = gail_expander_real_initialize;
|
|
}
|
|
|
|
static void
|
|
gail_expander_init (GailExpander *expander)
|
|
{
|
|
expander->activate_description = NULL;
|
|
expander->activate_keybinding = NULL;
|
|
expander->action_idle_handler = 0;
|
|
expander->textutil = NULL;
|
|
}
|
|
|
|
static G_CONST_RETURN gchar*
|
|
gail_expander_get_name (AtkObject *obj)
|
|
{
|
|
G_CONST_RETURN gchar *name;
|
|
g_return_val_if_fail (GAIL_IS_EXPANDER (obj), NULL);
|
|
|
|
name = ATK_OBJECT_CLASS (gail_expander_parent_class)->get_name (obj);
|
|
if (name != NULL)
|
|
return name;
|
|
else
|
|
{
|
|
/*
|
|
* Get the text on the label
|
|
*/
|
|
GtkWidget *widget;
|
|
|
|
widget = GTK_ACCESSIBLE (obj)->widget;
|
|
if (widget == NULL)
|
|
/*
|
|
* State is defunct
|
|
*/
|
|
return NULL;
|
|
|
|
g_return_val_if_fail (GTK_IS_EXPANDER (widget), NULL);
|
|
|
|
return gail_expander_get_full_text (GTK_EXPANDER (widget));
|
|
}
|
|
}
|
|
|
|
static gint
|
|
gail_expander_get_n_children (AtkObject* obj)
|
|
{
|
|
GtkWidget *widget;
|
|
GList *children;
|
|
gint count = 0;
|
|
|
|
g_return_val_if_fail (GAIL_IS_CONTAINER (obj), count);
|
|
|
|
widget = GTK_ACCESSIBLE (obj)->widget;
|
|
if (widget == NULL)
|
|
return 0;
|
|
|
|
children = gtk_container_get_children (GTK_CONTAINER(widget));
|
|
count = g_list_length (children);
|
|
g_list_free (children);
|
|
|
|
/* See if there is a label - if there is, reduce our count by 1
|
|
* since we don't want the label included with the children.
|
|
*/
|
|
if (gtk_expander_get_label_widget (GTK_EXPANDER (widget)))
|
|
count -= 1;
|
|
|
|
return count;
|
|
}
|
|
|
|
static AtkObject*
|
|
gail_expander_ref_child (AtkObject *obj,
|
|
gint i)
|
|
{
|
|
GList *children, *tmp_list;
|
|
AtkObject *accessible;
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
gint index;
|
|
gint count;
|
|
|
|
g_return_val_if_fail (GAIL_IS_CONTAINER (obj), NULL);
|
|
g_return_val_if_fail ((i >= 0), NULL);
|
|
widget = GTK_ACCESSIBLE (obj)->widget;
|
|
if (widget == NULL)
|
|
return NULL;
|
|
|
|
children = gtk_container_get_children (GTK_CONTAINER (widget));
|
|
|
|
/* See if there is a label - if there is, we need to skip it
|
|
* since we don't want the label included with the children.
|
|
*/
|
|
label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
|
|
if (label) {
|
|
count = g_list_length (children);
|
|
for (index = 0; index <= i; index++) {
|
|
tmp_list = g_list_nth (children, index);
|
|
if (label == GTK_WIDGET (tmp_list->data)) {
|
|
i += 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
tmp_list = g_list_nth (children, i);
|
|
if (!tmp_list)
|
|
{
|
|
g_list_free (children);
|
|
return NULL;
|
|
}
|
|
accessible = gtk_widget_get_accessible (GTK_WIDGET (tmp_list->data));
|
|
|
|
g_list_free (children);
|
|
g_object_ref (accessible);
|
|
return accessible;
|
|
}
|
|
|
|
static void
|
|
gail_expander_real_initialize (AtkObject *obj,
|
|
gpointer data)
|
|
{
|
|
GailExpander *gail_expander = GAIL_EXPANDER (obj);
|
|
GtkWidget *expander;
|
|
|
|
ATK_OBJECT_CLASS (gail_expander_parent_class)->initialize (obj, data);
|
|
|
|
expander = GTK_WIDGET (data);
|
|
if (gtk_widget_get_mapped (expander))
|
|
gail_expander_init_textutil (gail_expander, GTK_EXPANDER (expander));
|
|
else
|
|
g_signal_connect (expander,
|
|
"map",
|
|
G_CALLBACK (gail_expander_map_gtk),
|
|
gail_expander);
|
|
|
|
obj->role = ATK_ROLE_TOGGLE_BUTTON;
|
|
}
|
|
|
|
static void
|
|
gail_expander_map_gtk (GtkWidget *widget,
|
|
gpointer data)
|
|
{
|
|
GailExpander *expander;
|
|
|
|
expander = GAIL_EXPANDER (data);
|
|
gail_expander_init_textutil (expander, GTK_EXPANDER (widget));
|
|
}
|
|
|
|
static void
|
|
gail_expander_real_notify_gtk (GObject *obj,
|
|
GParamSpec *pspec)
|
|
{
|
|
AtkObject* atk_obj;
|
|
GtkExpander *expander;
|
|
GailExpander *gail_expander;
|
|
|
|
expander = GTK_EXPANDER (obj);
|
|
atk_obj = gtk_widget_get_accessible (GTK_WIDGET (expander));
|
|
;
|
|
if (strcmp (pspec->name, "label") == 0)
|
|
{
|
|
const gchar* label_text;
|
|
|
|
|
|
label_text = gail_expander_get_full_text (expander);
|
|
|
|
gail_expander = GAIL_EXPANDER (atk_obj);
|
|
if (gail_expander->textutil)
|
|
gail_text_util_text_setup (gail_expander->textutil, label_text);
|
|
|
|
if (atk_obj->name == NULL)
|
|
{
|
|
/*
|
|
* The label has changed so notify a change in accessible-name
|
|
*/
|
|
g_object_notify (G_OBJECT (atk_obj), "accessible-name");
|
|
}
|
|
/*
|
|
* The label is the only property which can be changed
|
|
*/
|
|
g_signal_emit_by_name (atk_obj, "visible_data_changed");
|
|
}
|
|
else if (strcmp (pspec->name, "expanded") == 0)
|
|
{
|
|
atk_object_notify_state_change (atk_obj, ATK_STATE_CHECKED,
|
|
gtk_expander_get_expanded (expander));
|
|
atk_object_notify_state_change (atk_obj, ATK_STATE_EXPANDED,
|
|
gtk_expander_get_expanded (expander));
|
|
g_signal_emit_by_name (atk_obj, "visible_data_changed");
|
|
}
|
|
else
|
|
GAIL_WIDGET_CLASS (gail_expander_parent_class)->notify_gtk (obj, pspec);
|
|
}
|
|
|
|
static G_CONST_RETURN gchar*
|
|
gail_expander_get_full_text (GtkExpander *widget)
|
|
{
|
|
GtkWidget *label_widget;
|
|
|
|
label_widget = gtk_expander_get_label_widget (widget);
|
|
|
|
if (!GTK_IS_LABEL (label_widget))
|
|
return NULL;
|
|
|
|
return gtk_label_get_text (GTK_LABEL (label_widget));
|
|
}
|
|
|
|
static void
|
|
gail_expander_init_textutil (GailExpander *expander,
|
|
GtkExpander *widget)
|
|
{
|
|
const gchar *label_text;
|
|
|
|
expander->textutil = gail_text_util_new ();
|
|
label_text = gail_expander_get_full_text (widget);
|
|
gail_text_util_text_setup (expander->textutil, label_text);
|
|
}
|
|
|
|
static void
|
|
atk_action_interface_init (AtkActionIface *iface)
|
|
{
|
|
iface->do_action = gail_expander_do_action;
|
|
iface->get_n_actions = gail_expander_get_n_actions;
|
|
iface->get_description = gail_expander_get_description;
|
|
iface->get_keybinding = gail_expander_get_keybinding;
|
|
iface->get_name = gail_expander_action_get_name;
|
|
iface->set_description = gail_expander_set_description;
|
|
}
|
|
|
|
static gboolean
|
|
gail_expander_do_action (AtkAction *action,
|
|
gint i)
|
|
{
|
|
GtkWidget *widget;
|
|
GailExpander *expander;
|
|
gboolean return_value = TRUE;
|
|
|
|
widget = GTK_ACCESSIBLE (action)->widget;
|
|
if (widget == NULL)
|
|
/*
|
|
* State is defunct
|
|
*/
|
|
return FALSE;
|
|
|
|
if (!gtk_widget_is_sensitive (widget) || !gtk_widget_get_visible (widget))
|
|
return FALSE;
|
|
|
|
expander = GAIL_EXPANDER (action);
|
|
switch (i)
|
|
{
|
|
case 0:
|
|
if (expander->action_idle_handler)
|
|
return_value = FALSE;
|
|
else
|
|
expander->action_idle_handler = gdk_threads_add_idle (idle_do_action, expander);
|
|
break;
|
|
default:
|
|
return_value = FALSE;
|
|
break;
|
|
}
|
|
return return_value;
|
|
}
|
|
|
|
static gboolean
|
|
idle_do_action (gpointer data)
|
|
{
|
|
GtkWidget *widget;
|
|
GailExpander *gail_expander;
|
|
|
|
gail_expander = GAIL_EXPANDER (data);
|
|
gail_expander->action_idle_handler = 0;
|
|
|
|
widget = GTK_ACCESSIBLE (gail_expander)->widget;
|
|
if (widget == NULL /* State is defunct */ ||
|
|
!gtk_widget_is_sensitive (widget) || !gtk_widget_get_visible (widget))
|
|
return FALSE;
|
|
|
|
gtk_widget_activate (widget);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gail_expander_get_n_actions (AtkAction *action)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static G_CONST_RETURN gchar*
|
|
gail_expander_get_description (AtkAction *action,
|
|
gint i)
|
|
{
|
|
GailExpander *expander;
|
|
G_CONST_RETURN gchar *return_value;
|
|
|
|
expander = GAIL_EXPANDER (action);
|
|
|
|
switch (i)
|
|
{
|
|
case 0:
|
|
return_value = expander->activate_description;
|
|
break;
|
|
default:
|
|
return_value = NULL;
|
|
break;
|
|
}
|
|
return return_value;
|
|
}
|
|
|
|
static G_CONST_RETURN gchar*
|
|
gail_expander_get_keybinding (AtkAction *action,
|
|
gint i)
|
|
{
|
|
GailExpander *expander;
|
|
gchar *return_value = NULL;
|
|
|
|
switch (i)
|
|
{
|
|
case 0:
|
|
{
|
|
/*
|
|
* We look for a mnemonic on the label
|
|
*/
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
|
|
expander = GAIL_EXPANDER (action);
|
|
widget = GTK_ACCESSIBLE (expander)->widget;
|
|
if (widget == NULL)
|
|
/*
|
|
* State is defunct
|
|
*/
|
|
return NULL;
|
|
|
|
g_return_val_if_fail (GTK_IS_EXPANDER (widget), NULL);
|
|
|
|
label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
|
|
if (GTK_IS_LABEL (label))
|
|
{
|
|
guint key_val;
|
|
|
|
key_val = gtk_label_get_mnemonic_keyval (GTK_LABEL (label));
|
|
if (key_val != GDK_VoidSymbol)
|
|
return_value = gtk_accelerator_name (key_val, GDK_MOD1_MASK);
|
|
g_free (expander->activate_keybinding);
|
|
expander->activate_keybinding = return_value;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
return return_value;
|
|
}
|
|
|
|
static G_CONST_RETURN gchar*
|
|
gail_expander_action_get_name (AtkAction *action,
|
|
gint i)
|
|
{
|
|
G_CONST_RETURN gchar *return_value;
|
|
|
|
switch (i)
|
|
{
|
|
case 0:
|
|
return_value = "activate";
|
|
break;
|
|
default:
|
|
return_value = NULL;
|
|
break;
|
|
}
|
|
return return_value;
|
|
}
|
|
|
|
static gboolean
|
|
gail_expander_set_description (AtkAction *action,
|
|
gint i,
|
|
const gchar *desc)
|
|
{
|
|
GailExpander *expander;
|
|
gchar **value;
|
|
|
|
expander = GAIL_EXPANDER (action);
|
|
|
|
switch (i)
|
|
{
|
|
case 0:
|
|
value = &expander->activate_description;
|
|
break;
|
|
default:
|
|
value = NULL;
|
|
break;
|
|
}
|
|
if (value)
|
|
{
|
|
g_free (*value);
|
|
*value = g_strdup (desc);
|
|
return TRUE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static AtkStateSet*
|
|
gail_expander_ref_state_set (AtkObject *obj)
|
|
{
|
|
AtkStateSet *state_set;
|
|
GtkWidget *widget;
|
|
GtkExpander *expander;
|
|
|
|
state_set = ATK_OBJECT_CLASS (gail_expander_parent_class)->ref_state_set (obj);
|
|
widget = GTK_ACCESSIBLE (obj)->widget;
|
|
|
|
if (widget == NULL)
|
|
return state_set;
|
|
|
|
expander = GTK_EXPANDER (widget);
|
|
|
|
atk_state_set_add_state (state_set, ATK_STATE_EXPANDABLE);
|
|
|
|
if (gtk_expander_get_expanded (expander)) {
|
|
atk_state_set_add_state (state_set, ATK_STATE_CHECKED);
|
|
atk_state_set_add_state (state_set, ATK_STATE_EXPANDED);
|
|
}
|
|
|
|
return state_set;
|
|
}
|
|
|
|
/* atktext.h */
|
|
|
|
static void
|
|
atk_text_interface_init (AtkTextIface *iface)
|
|
{
|
|
iface->get_text = gail_expander_get_text;
|
|
iface->get_character_at_offset = gail_expander_get_character_at_offset;
|
|
iface->get_text_before_offset = gail_expander_get_text_before_offset;
|
|
iface->get_text_at_offset = gail_expander_get_text_at_offset;
|
|
iface->get_text_after_offset = gail_expander_get_text_after_offset;
|
|
iface->get_character_count = gail_expander_get_character_count;
|
|
iface->get_character_extents = gail_expander_get_character_extents;
|
|
iface->get_offset_at_point = gail_expander_get_offset_at_point;
|
|
iface->get_run_attributes = gail_expander_get_run_attributes;
|
|
iface->get_default_attributes = gail_expander_get_default_attributes;
|
|
}
|
|
|
|
static gchar*
|
|
gail_expander_get_text (AtkText *text,
|
|
gint start_pos,
|
|
gint end_pos)
|
|
{
|
|
GtkWidget *widget;
|
|
GailExpander *expander;
|
|
const gchar *label_text;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
expander = GAIL_EXPANDER (text);
|
|
if (!expander->textutil)
|
|
gail_expander_init_textutil (expander, GTK_EXPANDER (widget));
|
|
|
|
label_text = gail_expander_get_full_text (GTK_EXPANDER (widget));
|
|
|
|
if (label_text == NULL)
|
|
return NULL;
|
|
else
|
|
return gail_text_util_get_substring (expander->textutil,
|
|
start_pos, end_pos);
|
|
}
|
|
|
|
static gchar*
|
|
gail_expander_get_text_before_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *widget;
|
|
GailExpander *expander;
|
|
GtkWidget *label;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
expander = GAIL_EXPANDER (text);
|
|
if (!expander->textutil)
|
|
gail_expander_init_textutil (expander, GTK_EXPANDER (widget));
|
|
|
|
label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
return gail_text_util_get_text (expander->textutil,
|
|
gtk_label_get_layout (GTK_LABEL (label)),
|
|
GAIL_BEFORE_OFFSET,
|
|
boundary_type, offset, start_offset, end_offset);
|
|
}
|
|
|
|
static gchar*
|
|
gail_expander_get_text_at_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *widget;
|
|
GailExpander *expander;
|
|
GtkWidget *label;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
expander = GAIL_EXPANDER (text);
|
|
if (!expander->textutil)
|
|
gail_expander_init_textutil (expander, GTK_EXPANDER (widget));
|
|
|
|
label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
return gail_text_util_get_text (expander->textutil,
|
|
gtk_label_get_layout (GTK_LABEL (label)),
|
|
GAIL_AT_OFFSET,
|
|
boundary_type, offset, start_offset, end_offset);
|
|
}
|
|
|
|
static gchar*
|
|
gail_expander_get_text_after_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *widget;
|
|
GailExpander *expander;
|
|
GtkWidget *label;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
expander = GAIL_EXPANDER (text);
|
|
if (!expander->textutil)
|
|
gail_expander_init_textutil (expander, GTK_EXPANDER (widget));
|
|
|
|
label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
return gail_text_util_get_text (expander->textutil,
|
|
gtk_label_get_layout (GTK_LABEL (label)),
|
|
GAIL_AFTER_OFFSET,
|
|
boundary_type, offset, start_offset, end_offset);
|
|
}
|
|
|
|
static gint
|
|
gail_expander_get_character_count (AtkText *text)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return 0;
|
|
|
|
label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
|
|
if (!GTK_IS_LABEL(label))
|
|
return 0;
|
|
|
|
return g_utf8_strlen (gtk_label_get_text (GTK_LABEL (label)), -1);
|
|
}
|
|
|
|
static void
|
|
gail_expander_get_character_extents (AtkText *text,
|
|
gint offset,
|
|
gint *x,
|
|
gint *y,
|
|
gint *width,
|
|
gint *height,
|
|
AtkCoordType coords)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
PangoRectangle char_rect;
|
|
gint index, x_layout, y_layout;
|
|
const gchar *label_text;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return;
|
|
|
|
label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
|
|
if (!GTK_IS_LABEL(label))
|
|
return;
|
|
|
|
gtk_label_get_layout_offsets (GTK_LABEL (label), &x_layout, &y_layout);
|
|
label_text = gtk_label_get_text (GTK_LABEL (label));
|
|
index = g_utf8_offset_to_pointer (label_text, offset) - label_text;
|
|
pango_layout_index_to_pos (gtk_label_get_layout (GTK_LABEL (label)), index, &char_rect);
|
|
|
|
gail_misc_get_extents_from_pango_rectangle (label, &char_rect,
|
|
x_layout, y_layout, x, y, width, height, coords);
|
|
}
|
|
|
|
static gint
|
|
gail_expander_get_offset_at_point (AtkText *text,
|
|
gint x,
|
|
gint y,
|
|
AtkCoordType coords)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
gint index, x_layout, y_layout;
|
|
const gchar *label_text;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return -1;
|
|
label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return -1;
|
|
|
|
gtk_label_get_layout_offsets (GTK_LABEL (label), &x_layout, &y_layout);
|
|
|
|
index = gail_misc_get_index_at_point_in_layout (label,
|
|
gtk_label_get_layout (GTK_LABEL (label)),
|
|
x_layout, y_layout, x, y, coords);
|
|
label_text = gtk_label_get_text (GTK_LABEL (label));
|
|
if (index == -1)
|
|
{
|
|
if (coords == ATK_XY_WINDOW || coords == ATK_XY_SCREEN)
|
|
return g_utf8_strlen (label_text, -1);
|
|
|
|
return index;
|
|
}
|
|
else
|
|
return g_utf8_pointer_to_offset (label_text, label_text + index);
|
|
}
|
|
|
|
static AtkAttributeSet*
|
|
gail_expander_get_run_attributes (AtkText *text,
|
|
gint offset,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
AtkAttributeSet *at_set = NULL;
|
|
GtkJustification justify;
|
|
GtkTextDirection dir;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
|
|
/* Get values set for entire label, if any */
|
|
justify = gtk_label_get_justify (GTK_LABEL (label));
|
|
if (justify != GTK_JUSTIFY_CENTER)
|
|
{
|
|
at_set = gail_misc_add_attribute (at_set,
|
|
ATK_TEXT_ATTR_JUSTIFICATION,
|
|
g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_JUSTIFICATION, justify)));
|
|
}
|
|
dir = gtk_widget_get_direction (label);
|
|
if (dir == GTK_TEXT_DIR_RTL)
|
|
{
|
|
at_set = gail_misc_add_attribute (at_set,
|
|
ATK_TEXT_ATTR_DIRECTION,
|
|
g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_DIRECTION, dir)));
|
|
}
|
|
|
|
at_set = gail_misc_layout_get_run_attributes (at_set,
|
|
gtk_label_get_layout (GTK_LABEL (label)),
|
|
(gchar *) gtk_label_get_text (GTK_LABEL (label)),
|
|
offset,
|
|
start_offset,
|
|
end_offset);
|
|
return at_set;
|
|
}
|
|
|
|
static AtkAttributeSet*
|
|
gail_expander_get_default_attributes (AtkText *text)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
AtkAttributeSet *at_set = NULL;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
|
|
at_set = gail_misc_get_default_attributes (at_set,
|
|
gtk_label_get_layout (GTK_LABEL (label)),
|
|
widget);
|
|
return at_set;
|
|
}
|
|
|
|
static gunichar
|
|
gail_expander_get_character_at_offset (AtkText *text,
|
|
gint offset)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
const gchar *string;
|
|
gchar *index;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return '\0';
|
|
|
|
label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return '\0';
|
|
string = gtk_label_get_text (GTK_LABEL (label));
|
|
if (offset >= g_utf8_strlen (string, -1))
|
|
return '\0';
|
|
index = g_utf8_offset_to_pointer (string, offset);
|
|
|
|
return g_utf8_get_char (index);
|
|
}
|
|
|
|
static void
|
|
gail_expander_finalize (GObject *object)
|
|
{
|
|
GailExpander *expander = GAIL_EXPANDER (object);
|
|
|
|
g_free (expander->activate_description);
|
|
g_free (expander->activate_keybinding);
|
|
if (expander->action_idle_handler)
|
|
{
|
|
g_source_remove (expander->action_idle_handler);
|
|
expander->action_idle_handler = 0;
|
|
}
|
|
if (expander->textutil)
|
|
g_object_unref (expander->textutil);
|
|
|
|
G_OBJECT_CLASS (gail_expander_parent_class)->finalize (object);
|
|
}
|