forked from AuroraMiddleware/gtk
1666 lines
46 KiB
C
1666 lines
46 KiB
C
/* GAIL - The GNOME Accessibility Implementation Library
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* Copyright 2001, 2002, 2003 Sun Microsystems Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <string.h>
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#include <gtk/gtk.h>
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#include <gdk/gdkkeysyms.h>
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#include "gailbutton.h"
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#include <libgail-util/gailmisc.h>
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#define GAIL_BUTTON_ATTACHED_MENUS "gtk-attached-menus"
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static void gail_button_class_init (GailButtonClass *klass);
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static void gail_button_init (GailButton *button);
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static G_CONST_RETURN gchar* gail_button_get_name (AtkObject *obj);
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static gint gail_button_get_n_children (AtkObject *obj);
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static AtkObject* gail_button_ref_child (AtkObject *obj,
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gint i);
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static AtkStateSet* gail_button_ref_state_set (AtkObject *obj);
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static void gail_button_notify_label_gtk (GObject *obj,
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GParamSpec *pspec,
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gpointer data);
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static void gail_button_label_map_gtk (GtkWidget *widget,
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gpointer data);
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static void gail_button_real_initialize (AtkObject *obj,
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gpointer data);
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static void gail_button_finalize (GObject *object);
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static void gail_button_init_textutil (GailButton *button,
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GtkWidget *label);
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static void gail_button_pressed_enter_handler (GtkWidget *widget);
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static void gail_button_released_leave_handler (GtkWidget *widget);
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static gint gail_button_real_add_gtk (GtkContainer *container,
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GtkWidget *widget,
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gpointer data);
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static void atk_action_interface_init (AtkActionIface *iface);
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static gboolean gail_button_do_action (AtkAction *action,
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gint i);
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static gboolean idle_do_action (gpointer data);
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static gint gail_button_get_n_actions (AtkAction *action);
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static G_CONST_RETURN gchar* gail_button_get_description(AtkAction *action,
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gint i);
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static G_CONST_RETURN gchar* gail_button_get_keybinding (AtkAction *action,
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gint i);
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static G_CONST_RETURN gchar* gail_button_action_get_name(AtkAction *action,
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gint i);
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static gboolean gail_button_set_description(AtkAction *action,
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gint i,
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const gchar *desc);
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static void gail_button_notify_label_weak_ref (gpointer data,
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GObject *obj);
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static void gail_button_notify_weak_ref (gpointer data,
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GObject *obj);
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/* AtkImage.h */
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static void atk_image_interface_init (AtkImageIface *iface);
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static G_CONST_RETURN gchar* gail_button_get_image_description
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(AtkImage *image);
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static void gail_button_get_image_position
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(AtkImage *image,
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gint *x,
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gint *y,
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AtkCoordType coord_type);
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static void gail_button_get_image_size (AtkImage *image,
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gint *width,
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gint *height);
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static gboolean gail_button_set_image_description
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(AtkImage *image,
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const gchar *description);
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/* atktext.h */
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static void atk_text_interface_init (AtkTextIface *iface);
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static gchar* gail_button_get_text (AtkText *text,
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gint start_pos,
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gint end_pos);
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static gunichar gail_button_get_character_at_offset(AtkText *text,
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gint offset);
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static gchar* gail_button_get_text_before_offset(AtkText *text,
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gint offset,
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AtkTextBoundary boundary_type,
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gint *start_offset,
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gint *end_offset);
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static gchar* gail_button_get_text_at_offset (AtkText *text,
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gint offset,
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AtkTextBoundary boundary_type,
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gint *start_offset,
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gint *end_offset);
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static gchar* gail_button_get_text_after_offset(AtkText *text,
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gint offset,
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AtkTextBoundary boundary_type,
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gint *start_offset,
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gint *end_offset);
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static gint gail_button_get_character_count (AtkText *text);
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static void gail_button_get_character_extents (AtkText *text,
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gint offset,
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gint *x,
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gint *y,
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gint *width,
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gint *height,
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AtkCoordType coords);
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static gint gail_button_get_offset_at_point (AtkText *text,
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gint x,
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gint y,
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AtkCoordType coords);
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static AtkAttributeSet* gail_button_get_run_attributes
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(AtkText *text,
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gint offset,
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gint *start_offset,
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gint *end_offset);
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static AtkAttributeSet* gail_button_get_default_attributes
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(AtkText *text);
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static GtkImage* get_image_from_button (GtkWidget *button);
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static GtkWidget* get_label_from_button (GtkWidget *button,
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gint index,
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gboolean allow_many);
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static gint get_n_labels_from_button (GtkWidget *button);
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static void set_role_for_button (AtkObject *accessible,
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GtkWidget *button);
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static gint get_n_attached_menus (GtkWidget *widget);
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static GtkWidget* get_nth_attached_menu (GtkWidget *widget,
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gint index);
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G_DEFINE_TYPE_WITH_CODE (GailButton, gail_button, GAIL_TYPE_CONTAINER,
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G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init)
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G_IMPLEMENT_INTERFACE (ATK_TYPE_IMAGE, atk_image_interface_init)
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G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, atk_text_interface_init))
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static void
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gail_button_class_init (GailButtonClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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GailContainerClass *container_class;
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container_class = (GailContainerClass*)klass;
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gobject_class->finalize = gail_button_finalize;
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class->get_name = gail_button_get_name;
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class->get_n_children = gail_button_get_n_children;
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class->ref_child = gail_button_ref_child;
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class->ref_state_set = gail_button_ref_state_set;
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class->initialize = gail_button_real_initialize;
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container_class->add_gtk = gail_button_real_add_gtk;
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container_class->remove_gtk = NULL;
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}
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static void
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gail_button_init (GailButton *button)
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{
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button->click_description = NULL;
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button->press_description = NULL;
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button->release_description = NULL;
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button->click_keybinding = NULL;
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button->action_queue = NULL;
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button->action_idle_handler = 0;
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button->textutil = NULL;
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}
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static G_CONST_RETURN gchar*
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gail_button_get_name (AtkObject *obj)
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{
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G_CONST_RETURN gchar* name = NULL;
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g_return_val_if_fail (GAIL_IS_BUTTON (obj), NULL);
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name = ATK_OBJECT_CLASS (gail_button_parent_class)->get_name (obj);
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if (name == NULL)
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{
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/*
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* Get the text on the label
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*/
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GtkWidget *widget;
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GtkWidget *child;
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widget = GTK_ACCESSIBLE (obj)->widget;
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if (widget == NULL)
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/*
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* State is defunct
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*/
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return NULL;
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g_return_val_if_fail (GTK_IS_BUTTON (widget), NULL);
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child = get_label_from_button (widget, 0, FALSE);
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if (GTK_IS_LABEL (child))
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name = gtk_label_get_text (GTK_LABEL (child));
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else
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{
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GtkImage *image;
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image = get_image_from_button (widget);
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if (GTK_IS_IMAGE (image))
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{
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AtkObject *atk_obj;
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atk_obj = gtk_widget_get_accessible (GTK_WIDGET (image));
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name = atk_object_get_name (atk_obj);
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}
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}
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}
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return name;
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}
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/*
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* A DownArrow in a GtkToggltButton whose parent is not a ColorCombo
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* has press as default action.
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*/
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static gboolean
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gail_button_is_default_press (GtkWidget *widget)
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{
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GtkWidget *child;
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GtkWidget *parent;
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gboolean ret = FALSE;
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const gchar *parent_type_name;
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child = GTK_BIN (widget)->child;
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if (GTK_IS_ARROW (child) &&
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GTK_ARROW (child)->arrow_type == GTK_ARROW_DOWN)
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{
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parent = gtk_widget_get_parent (widget);
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if (parent)
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{
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parent_type_name = g_type_name (G_OBJECT_TYPE (parent));
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if (strcmp (parent_type_name, "ColorCombo"))
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return TRUE;
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}
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}
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return ret;
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}
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static void
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gail_button_real_initialize (AtkObject *obj,
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gpointer data)
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{
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GailButton *button = GAIL_BUTTON (obj);
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GtkWidget *label;
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GtkWidget *widget;
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ATK_OBJECT_CLASS (gail_button_parent_class)->initialize (obj, data);
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button->state = GTK_STATE_NORMAL;
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g_signal_connect (data,
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"pressed",
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G_CALLBACK (gail_button_pressed_enter_handler),
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NULL);
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g_signal_connect (data,
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"enter",
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G_CALLBACK (gail_button_pressed_enter_handler),
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NULL);
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g_signal_connect (data,
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"released",
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G_CALLBACK (gail_button_released_leave_handler),
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NULL);
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g_signal_connect (data,
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"leave",
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G_CALLBACK (gail_button_released_leave_handler),
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NULL);
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widget = GTK_WIDGET (data);
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label = get_label_from_button (widget, 0, FALSE);
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if (GTK_IS_LABEL (label))
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{
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if (GTK_WIDGET_MAPPED (label))
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gail_button_init_textutil (button, label);
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else
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g_signal_connect (label,
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"map",
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G_CALLBACK (gail_button_label_map_gtk),
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button);
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}
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button->default_is_press = gail_button_is_default_press (widget);
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set_role_for_button (obj, data);
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}
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static void
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gail_button_label_map_gtk (GtkWidget *widget,
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gpointer data)
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{
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GailButton *button;
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button = GAIL_BUTTON (data);
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gail_button_init_textutil (button, widget);
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}
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static void
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gail_button_notify_label_gtk (GObject *obj,
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GParamSpec *pspec,
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gpointer data)
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{
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AtkObject* atk_obj = ATK_OBJECT (data);
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GtkLabel *label;
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GailButton *gail_button;
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if (strcmp (pspec->name, "label") == 0)
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{
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const gchar* label_text;
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label = GTK_LABEL (obj);
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label_text = gtk_label_get_text (label);
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gail_button = GAIL_BUTTON (atk_obj);
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gail_text_util_text_setup (gail_button->textutil, label_text);
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if (atk_obj->name == NULL)
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{
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/*
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* The label has changed so notify a change in accessible-name
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*/
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g_object_notify (G_OBJECT (atk_obj), "accessible-name");
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}
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/*
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* The label is the only property which can be changed
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*/
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g_signal_emit_by_name (atk_obj, "visible_data_changed");
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}
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}
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static void
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gail_button_notify_weak_ref (gpointer data, GObject* obj)
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{
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GtkLabel *label = NULL;
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AtkObject* atk_obj = ATK_OBJECT (obj);
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if (data && GTK_IS_WIDGET (data))
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{
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label = GTK_LABEL (data);
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if (label)
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{
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g_signal_handlers_disconnect_by_func (label,
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(GCallback) gail_button_notify_label_gtk,
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GAIL_BUTTON (atk_obj));
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g_object_weak_unref (G_OBJECT (label),
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gail_button_notify_label_weak_ref,
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GAIL_BUTTON (atk_obj));
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}
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}
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}
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static void
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gail_button_notify_label_weak_ref (gpointer data, GObject* obj)
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{
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GtkLabel *label = NULL;
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GailButton *button = NULL;
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label = GTK_LABEL (obj);
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if (data && GAIL_IS_BUTTON (data))
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{
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button = GAIL_BUTTON (ATK_OBJECT (data));
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if (button)
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g_object_weak_unref (G_OBJECT (button), gail_button_notify_weak_ref,
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label);
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}
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}
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static void
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gail_button_init_textutil (GailButton *button,
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GtkWidget *label)
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{
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const gchar *label_text;
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if (button->textutil)
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g_object_unref (button->textutil);
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button->textutil = gail_text_util_new ();
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label_text = gtk_label_get_text (GTK_LABEL (label));
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gail_text_util_text_setup (button->textutil, label_text);
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g_object_weak_ref (G_OBJECT (button),
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gail_button_notify_weak_ref, label);
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g_object_weak_ref (G_OBJECT (label),
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gail_button_notify_label_weak_ref, button);
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g_signal_connect (label,
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"notify",
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(GCallback) gail_button_notify_label_gtk,
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button);
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}
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static gint
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gail_button_real_add_gtk (GtkContainer *container,
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GtkWidget *widget,
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gpointer data)
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{
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GtkLabel *label;
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GailButton *button;
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if (GTK_IS_LABEL (widget))
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{
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const gchar* label_text;
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label = GTK_LABEL (widget);
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button = GAIL_BUTTON (data);
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if (!button->textutil)
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gail_button_init_textutil (button, widget);
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else
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{
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label_text = gtk_label_get_text (label);
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gail_text_util_text_setup (button->textutil, label_text);
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}
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}
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return 1;
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}
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static void
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atk_action_interface_init (AtkActionIface *iface)
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{
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iface->do_action = gail_button_do_action;
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iface->get_n_actions = gail_button_get_n_actions;
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iface->get_description = gail_button_get_description;
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iface->get_keybinding = gail_button_get_keybinding;
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iface->get_name = gail_button_action_get_name;
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iface->set_description = gail_button_set_description;
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}
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static gboolean
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gail_button_do_action (AtkAction *action,
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gint i)
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{
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GtkWidget *widget;
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GailButton *button;
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gboolean return_value = TRUE;
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widget = GTK_ACCESSIBLE (action)->widget;
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if (widget == NULL)
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/*
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* State is defunct
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*/
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return FALSE;
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if (!GTK_WIDGET_IS_SENSITIVE (widget) || !GTK_WIDGET_VISIBLE (widget))
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return FALSE;
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button = GAIL_BUTTON (action);
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switch (i)
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{
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case 0:
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case 1:
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case 2:
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if (!button->action_queue)
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{
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button->action_queue = g_queue_new ();
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}
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g_queue_push_head (button->action_queue, (gpointer) i);
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if (!button->action_idle_handler)
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button->action_idle_handler = gdk_threads_add_idle (idle_do_action, button);
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break;
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default:
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return_value = FALSE;
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break;
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}
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return return_value;
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}
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static gboolean
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idle_do_action (gpointer data)
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{
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GtkButton *button;
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GtkWidget *widget;
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GailButton *gail_button;
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GdkEvent tmp_event;
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gail_button = GAIL_BUTTON (data);
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gail_button->action_idle_handler = 0;
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widget = GTK_ACCESSIBLE (gail_button)->widget;
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tmp_event.button.type = GDK_BUTTON_RELEASE;
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tmp_event.button.window = widget->window;
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tmp_event.button.button = 1;
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tmp_event.button.send_event = TRUE;
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tmp_event.button.time = GDK_CURRENT_TIME;
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tmp_event.button.axes = NULL;
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g_object_ref (gail_button);
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if (widget == NULL /* State is defunct */ ||
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!GTK_WIDGET_IS_SENSITIVE (widget) || !GTK_WIDGET_VISIBLE (widget))
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{
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g_object_unref (gail_button);
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return FALSE;
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}
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else
|
|
gtk_widget_event (widget, &tmp_event);
|
|
|
|
button = GTK_BUTTON (widget);
|
|
while (!g_queue_is_empty (gail_button->action_queue))
|
|
{
|
|
gint action_number = (gint) g_queue_pop_head (gail_button->action_queue);
|
|
if (gail_button->default_is_press)
|
|
{
|
|
if (action_number == 0)
|
|
action_number = 1;
|
|
else if (action_number == 1)
|
|
action_number = 0;
|
|
}
|
|
switch (action_number)
|
|
{
|
|
case 0:
|
|
/* first a press */
|
|
|
|
button->in_button = TRUE;
|
|
gtk_button_enter (button);
|
|
/*
|
|
* Simulate a button press event. calling gtk_button_pressed() does
|
|
* not get the job done for a GtkOptionMenu.
|
|
*/
|
|
tmp_event.button.type = GDK_BUTTON_PRESS;
|
|
tmp_event.button.window = widget->window;
|
|
tmp_event.button.button = 1;
|
|
tmp_event.button.send_event = TRUE;
|
|
tmp_event.button.time = GDK_CURRENT_TIME;
|
|
tmp_event.button.axes = NULL;
|
|
|
|
gtk_widget_event (widget, &tmp_event);
|
|
|
|
/* then a release */
|
|
tmp_event.button.type = GDK_BUTTON_RELEASE;
|
|
gtk_widget_event (widget, &tmp_event);
|
|
button->in_button = FALSE;
|
|
gtk_button_leave (button);
|
|
break;
|
|
case 1:
|
|
button->in_button = TRUE;
|
|
gtk_button_enter (button);
|
|
/*
|
|
* Simulate a button press event. calling gtk_button_pressed() does
|
|
* not get the job done for a GtkOptionMenu.
|
|
*/
|
|
tmp_event.button.type = GDK_BUTTON_PRESS;
|
|
tmp_event.button.window = widget->window;
|
|
tmp_event.button.button = 1;
|
|
tmp_event.button.send_event = TRUE;
|
|
tmp_event.button.time = GDK_CURRENT_TIME;
|
|
tmp_event.button.axes = NULL;
|
|
|
|
gtk_widget_event (widget, &tmp_event);
|
|
break;
|
|
case 2:
|
|
button->in_button = FALSE;
|
|
gtk_button_leave (button);
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
}
|
|
g_object_unref (gail_button);
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gail_button_get_n_actions (AtkAction *action)
|
|
{
|
|
return 3;
|
|
}
|
|
|
|
static G_CONST_RETURN gchar*
|
|
gail_button_get_description (AtkAction *action,
|
|
gint i)
|
|
{
|
|
GailButton *button;
|
|
G_CONST_RETURN gchar *return_value;
|
|
|
|
button = GAIL_BUTTON (action);
|
|
|
|
if (button->default_is_press)
|
|
{
|
|
if (i == 0)
|
|
i = 1;
|
|
else if (i == 1)
|
|
i = 0;
|
|
}
|
|
switch (i)
|
|
{
|
|
case 0:
|
|
return_value = button->click_description;
|
|
break;
|
|
case 1:
|
|
return_value = button->press_description;
|
|
break;
|
|
case 2:
|
|
return_value = button->release_description;
|
|
break;
|
|
default:
|
|
return_value = NULL;
|
|
break;
|
|
}
|
|
return return_value;
|
|
}
|
|
|
|
static G_CONST_RETURN gchar*
|
|
gail_button_get_keybinding (AtkAction *action,
|
|
gint i)
|
|
{
|
|
GailButton *button;
|
|
gchar *return_value = NULL;
|
|
|
|
button = GAIL_BUTTON (action);
|
|
if (button->default_is_press)
|
|
{
|
|
if (i == 0)
|
|
i = 1;
|
|
else if (i == 1)
|
|
i = 0;
|
|
}
|
|
switch (i)
|
|
{
|
|
case 0:
|
|
{
|
|
/*
|
|
* We look for a mnemonic on the label
|
|
*/
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
guint key_val;
|
|
|
|
widget = GTK_ACCESSIBLE (button)->widget;
|
|
if (widget == NULL)
|
|
/*
|
|
* State is defunct
|
|
*/
|
|
return NULL;
|
|
|
|
g_return_val_if_fail (GTK_IS_BUTTON (widget), NULL);
|
|
|
|
label = get_label_from_button (widget, 0, FALSE);
|
|
if (GTK_IS_LABEL (label))
|
|
{
|
|
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);
|
|
}
|
|
if (return_value == NULL)
|
|
{
|
|
/* Find labelled-by relation */
|
|
AtkRelationSet *set;
|
|
AtkRelation *relation;
|
|
GPtrArray *target;
|
|
gpointer target_object;
|
|
|
|
set = atk_object_ref_relation_set (ATK_OBJECT (action));
|
|
if (set)
|
|
{
|
|
relation = atk_relation_set_get_relation_by_type (set, ATK_RELATION_LABELLED_BY);
|
|
if (relation)
|
|
{
|
|
target = atk_relation_get_target (relation);
|
|
|
|
target_object = g_ptr_array_index (target, 0);
|
|
if (GTK_IS_ACCESSIBLE (target_object))
|
|
{
|
|
label = GTK_ACCESSIBLE (target_object)->widget;
|
|
}
|
|
}
|
|
g_object_unref (set);
|
|
}
|
|
|
|
if (GTK_IS_LABEL (label))
|
|
{
|
|
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 (button->click_keybinding);
|
|
button->click_keybinding = return_value;
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
return return_value;
|
|
}
|
|
|
|
static G_CONST_RETURN gchar*
|
|
gail_button_action_get_name (AtkAction *action,
|
|
gint i)
|
|
{
|
|
G_CONST_RETURN gchar *return_value;
|
|
GailButton *button;
|
|
|
|
button = GAIL_BUTTON (action);
|
|
|
|
if (button->default_is_press)
|
|
{
|
|
if (i == 0)
|
|
i = 1;
|
|
else if (i == 1)
|
|
i = 0;
|
|
}
|
|
switch (i)
|
|
{
|
|
case 0:
|
|
/*
|
|
* This action is a "click" to activate a button or "toggle" to change
|
|
* the state of a toggle button check box or radio button.
|
|
*/
|
|
return_value = "click";
|
|
break;
|
|
case 1:
|
|
/*
|
|
* This action simulates a button press by simulating moving the
|
|
* mouse into the button followed by pressing the left mouse button.
|
|
*/
|
|
return_value = "press";
|
|
break;
|
|
case 2:
|
|
/*
|
|
* This action simulates releasing the left mouse button outside the
|
|
* button.
|
|
*
|
|
* To simulate releasing the left mouse button inside the button use
|
|
* the click action.
|
|
*/
|
|
return_value = "release";
|
|
break;
|
|
default:
|
|
return_value = NULL;
|
|
break;
|
|
}
|
|
return return_value;
|
|
}
|
|
|
|
static gboolean
|
|
gail_button_set_description (AtkAction *action,
|
|
gint i,
|
|
const gchar *desc)
|
|
{
|
|
GailButton *button;
|
|
gchar **value;
|
|
|
|
button = GAIL_BUTTON (action);
|
|
|
|
if (button->default_is_press)
|
|
{
|
|
if (i == 0)
|
|
i = 1;
|
|
else if (i == 1)
|
|
i = 0;
|
|
}
|
|
switch (i)
|
|
{
|
|
case 0:
|
|
value = &button->click_description;
|
|
break;
|
|
case 1:
|
|
value = &button->press_description;
|
|
break;
|
|
case 2:
|
|
value = &button->release_description;
|
|
break;
|
|
default:
|
|
value = NULL;
|
|
break;
|
|
}
|
|
if (value)
|
|
{
|
|
g_free (*value);
|
|
*value = g_strdup (desc);
|
|
return TRUE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gail_button_get_n_children (AtkObject* obj)
|
|
{
|
|
GtkWidget *widget;
|
|
gint n_children;
|
|
|
|
g_return_val_if_fail (GAIL_IS_BUTTON (obj), 0);
|
|
|
|
widget = GTK_ACCESSIBLE (obj)->widget;
|
|
if (widget == NULL)
|
|
/*
|
|
* State is defunct
|
|
*/
|
|
return 0;
|
|
|
|
/*
|
|
* Check whether we have an attached menus for PanelMenuButton
|
|
*/
|
|
n_children = get_n_attached_menus (widget);
|
|
if (n_children > 0)
|
|
return n_children;
|
|
|
|
n_children = get_n_labels_from_button (widget);
|
|
if (n_children <= 1)
|
|
n_children = 0;
|
|
|
|
return n_children;
|
|
}
|
|
|
|
static AtkObject*
|
|
gail_button_ref_child (AtkObject *obj,
|
|
gint i)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkWidget *child_widget;
|
|
AtkObject *child;
|
|
|
|
g_return_val_if_fail (GAIL_IS_BUTTON (obj), NULL);
|
|
|
|
widget = GTK_ACCESSIBLE (obj)->widget;
|
|
if (widget == NULL)
|
|
/*
|
|
* State is defunct
|
|
*/
|
|
return NULL;
|
|
|
|
if (i >= gail_button_get_n_children (obj))
|
|
return NULL;
|
|
|
|
if (get_n_attached_menus (widget) > 0)
|
|
{
|
|
child_widget = get_nth_attached_menu (widget, i);
|
|
}
|
|
else
|
|
child_widget = NULL;
|
|
|
|
if (!child_widget)
|
|
{
|
|
if (get_n_labels_from_button (widget) > 1)
|
|
{
|
|
child_widget = get_label_from_button (widget, i, TRUE);
|
|
}
|
|
}
|
|
|
|
if (child_widget)
|
|
{
|
|
child = gtk_widget_get_accessible (child_widget);
|
|
g_object_ref (child);
|
|
}
|
|
else
|
|
child = NULL;
|
|
|
|
return child;
|
|
}
|
|
|
|
static AtkStateSet*
|
|
gail_button_ref_state_set (AtkObject *obj)
|
|
{
|
|
AtkStateSet *state_set;
|
|
GtkWidget *widget;
|
|
|
|
state_set = ATK_OBJECT_CLASS (gail_button_parent_class)->ref_state_set (obj);
|
|
widget = GTK_ACCESSIBLE (obj)->widget;
|
|
|
|
if (widget == NULL)
|
|
return state_set;
|
|
|
|
if (GTK_WIDGET_STATE (widget) == GTK_STATE_ACTIVE)
|
|
atk_state_set_add_state (state_set, ATK_STATE_ARMED);
|
|
|
|
if (!GTK_WIDGET_CAN_FOCUS(widget))
|
|
atk_state_set_remove_state (state_set, ATK_STATE_SELECTABLE);
|
|
|
|
|
|
return state_set;
|
|
}
|
|
|
|
/*
|
|
* This is the signal handler for the "pressed" or "enter" signal handler
|
|
* on the GtkButton.
|
|
*
|
|
* If the state is now GTK_STATE_ACTIVE we notify a property change
|
|
*/
|
|
static void
|
|
gail_button_pressed_enter_handler (GtkWidget *widget)
|
|
{
|
|
AtkObject *accessible;
|
|
|
|
if (GTK_WIDGET_STATE (widget) == GTK_STATE_ACTIVE)
|
|
{
|
|
accessible = gtk_widget_get_accessible (widget);
|
|
atk_object_notify_state_change (accessible, ATK_STATE_ARMED, TRUE);
|
|
GAIL_BUTTON (accessible)->state = GTK_STATE_ACTIVE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This is the signal handler for the "released" or "leave" signal handler
|
|
* on the GtkButton.
|
|
*
|
|
* If the state was GTK_STATE_ACTIVE we notify a property change
|
|
*/
|
|
static void
|
|
gail_button_released_leave_handler (GtkWidget *widget)
|
|
{
|
|
AtkObject *accessible;
|
|
|
|
accessible = gtk_widget_get_accessible (widget);
|
|
if (GAIL_BUTTON (accessible)->state == GTK_STATE_ACTIVE)
|
|
{
|
|
atk_object_notify_state_change (accessible, ATK_STATE_ARMED, FALSE);
|
|
GAIL_BUTTON (accessible)->state = GTK_STATE_NORMAL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
atk_image_interface_init (AtkImageIface *iface)
|
|
{
|
|
iface->get_image_description = gail_button_get_image_description;
|
|
iface->get_image_position = gail_button_get_image_position;
|
|
iface->get_image_size = gail_button_get_image_size;
|
|
iface->set_image_description = gail_button_set_image_description;
|
|
}
|
|
|
|
static GtkImage*
|
|
get_image_from_button (GtkWidget *button)
|
|
{
|
|
GtkWidget *child;
|
|
GList *list;
|
|
GtkImage *image = NULL;
|
|
|
|
child = gtk_bin_get_child (GTK_BIN (button));
|
|
if (GTK_IS_IMAGE (child))
|
|
image = GTK_IMAGE (child);
|
|
else
|
|
{
|
|
if (GTK_IS_ALIGNMENT (child))
|
|
child = gtk_bin_get_child (GTK_BIN (child));
|
|
if (GTK_IS_CONTAINER (child))
|
|
{
|
|
list = gtk_container_get_children (GTK_CONTAINER (child));
|
|
if (!list)
|
|
return NULL;
|
|
if (GTK_IS_IMAGE (list->data))
|
|
image = GTK_IMAGE (list->data);
|
|
g_list_free (list);
|
|
}
|
|
}
|
|
|
|
return image;
|
|
}
|
|
|
|
static G_CONST_RETURN gchar*
|
|
gail_button_get_image_description (AtkImage *image) {
|
|
|
|
GtkWidget *widget;
|
|
GtkImage *button_image;
|
|
AtkObject *obj;
|
|
|
|
widget = GTK_ACCESSIBLE (image)->widget;
|
|
|
|
if (widget == NULL)
|
|
/*
|
|
* State is defunct
|
|
*/
|
|
return NULL;
|
|
|
|
button_image = get_image_from_button (widget);
|
|
|
|
if (button_image != NULL)
|
|
{
|
|
obj = gtk_widget_get_accessible (GTK_WIDGET (button_image));
|
|
return atk_image_get_image_description (ATK_IMAGE (obj));
|
|
}
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
gail_button_get_image_position (AtkImage *image,
|
|
gint *x,
|
|
gint *y,
|
|
AtkCoordType coord_type)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkImage *button_image;
|
|
AtkObject *obj;
|
|
|
|
widget = GTK_ACCESSIBLE (image)->widget;
|
|
|
|
if (widget == NULL)
|
|
{
|
|
/*
|
|
* State is defunct
|
|
*/
|
|
*x = G_MININT;
|
|
*y = G_MININT;
|
|
return;
|
|
}
|
|
|
|
button_image = get_image_from_button (widget);
|
|
|
|
if (button_image != NULL)
|
|
{
|
|
obj = gtk_widget_get_accessible (GTK_WIDGET (button_image));
|
|
atk_component_get_position (ATK_COMPONENT (obj), x, y, coord_type);
|
|
}
|
|
else
|
|
{
|
|
*x = G_MININT;
|
|
*y = G_MININT;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gail_button_get_image_size (AtkImage *image,
|
|
gint *width,
|
|
gint *height)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkImage *button_image;
|
|
AtkObject *obj;
|
|
|
|
widget = GTK_ACCESSIBLE (image)->widget;
|
|
|
|
if (widget == NULL)
|
|
{
|
|
/*
|
|
* State is defunct
|
|
*/
|
|
*width = -1;
|
|
*height = -1;
|
|
return;
|
|
}
|
|
|
|
button_image = get_image_from_button (widget);
|
|
|
|
if (button_image != NULL)
|
|
{
|
|
obj = gtk_widget_get_accessible (GTK_WIDGET (button_image));
|
|
atk_image_get_image_size (ATK_IMAGE (obj), width, height);
|
|
}
|
|
else
|
|
{
|
|
*width = -1;
|
|
*height = -1;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gail_button_set_image_description (AtkImage *image,
|
|
const gchar *description)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkImage *button_image;
|
|
AtkObject *obj;
|
|
|
|
widget = GTK_ACCESSIBLE (image)->widget;
|
|
|
|
if (widget == NULL)
|
|
/*
|
|
* State is defunct
|
|
*/
|
|
return FALSE;
|
|
|
|
button_image = get_image_from_button (widget);
|
|
|
|
if (button_image != NULL)
|
|
{
|
|
obj = gtk_widget_get_accessible (GTK_WIDGET (button_image));
|
|
return atk_image_set_image_description (ATK_IMAGE (obj), description);
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
/* atktext.h */
|
|
|
|
static void
|
|
atk_text_interface_init (AtkTextIface *iface)
|
|
{
|
|
iface->get_text = gail_button_get_text;
|
|
iface->get_character_at_offset = gail_button_get_character_at_offset;
|
|
iface->get_text_before_offset = gail_button_get_text_before_offset;
|
|
iface->get_text_at_offset = gail_button_get_text_at_offset;
|
|
iface->get_text_after_offset = gail_button_get_text_after_offset;
|
|
iface->get_character_count = gail_button_get_character_count;
|
|
iface->get_character_extents = gail_button_get_character_extents;
|
|
iface->get_offset_at_point = gail_button_get_offset_at_point;
|
|
iface->get_run_attributes = gail_button_get_run_attributes;
|
|
iface->get_default_attributes = gail_button_get_default_attributes;
|
|
}
|
|
|
|
static gchar*
|
|
gail_button_get_text (AtkText *text,
|
|
gint start_pos,
|
|
gint end_pos)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
GailButton *button;
|
|
const gchar *label_text;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
label = get_label_from_button (widget, 0, FALSE);
|
|
|
|
if (!GTK_IS_LABEL (label))
|
|
return NULL;
|
|
|
|
button = GAIL_BUTTON (text);
|
|
if (!button->textutil)
|
|
gail_button_init_textutil (button, label);
|
|
|
|
label_text = gtk_label_get_text (GTK_LABEL (label));
|
|
|
|
if (label_text == NULL)
|
|
return NULL;
|
|
else
|
|
{
|
|
return gail_text_util_get_substring (button->textutil,
|
|
start_pos, end_pos);
|
|
}
|
|
}
|
|
|
|
static gchar*
|
|
gail_button_get_text_before_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
GailButton *button;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
/* Get label */
|
|
label = get_label_from_button (widget, 0, FALSE);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
|
|
button = GAIL_BUTTON (text);
|
|
if (!button->textutil)
|
|
gail_button_init_textutil (button, label);
|
|
|
|
return gail_text_util_get_text (button->textutil,
|
|
gtk_label_get_layout (GTK_LABEL (label)), GAIL_BEFORE_OFFSET,
|
|
boundary_type, offset, start_offset, end_offset);
|
|
}
|
|
|
|
static gchar*
|
|
gail_button_get_text_at_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
GailButton *button;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
/* Get label */
|
|
label = get_label_from_button (widget, 0, FALSE);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
|
|
button = GAIL_BUTTON (text);
|
|
if (!button->textutil)
|
|
gail_button_init_textutil (button, label);
|
|
|
|
return gail_text_util_get_text (button->textutil,
|
|
gtk_label_get_layout (GTK_LABEL (label)), GAIL_AT_OFFSET,
|
|
boundary_type, offset, start_offset, end_offset);
|
|
}
|
|
|
|
static gchar*
|
|
gail_button_get_text_after_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
GailButton *button;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
|
|
if (widget == NULL)
|
|
{
|
|
/* State is defunct */
|
|
return NULL;
|
|
}
|
|
|
|
/* Get label */
|
|
label = get_label_from_button (widget, 0, FALSE);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
|
|
button = GAIL_BUTTON (text);
|
|
if (!button->textutil)
|
|
gail_button_init_textutil (button, label);
|
|
|
|
return gail_text_util_get_text (button->textutil,
|
|
gtk_label_get_layout (GTK_LABEL (label)), GAIL_AFTER_OFFSET,
|
|
boundary_type, offset, start_offset, end_offset);
|
|
}
|
|
|
|
static gint
|
|
gail_button_get_character_count (AtkText *text)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkWidget *label;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return 0;
|
|
|
|
label = get_label_from_button (widget, 0, FALSE);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return 0;
|
|
|
|
return g_utf8_strlen (gtk_label_get_text (GTK_LABEL (label)), -1);
|
|
}
|
|
|
|
static void
|
|
gail_button_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 = get_label_from_button (widget, 0, FALSE);
|
|
|
|
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_button_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 = get_label_from_button (widget, 0, FALSE);
|
|
|
|
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_button_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 = get_label_from_button (widget, 0, FALSE);
|
|
|
|
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_button_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 = get_label_from_button (widget, 0, FALSE);
|
|
|
|
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_button_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 = get_label_from_button (widget, 0, FALSE);
|
|
|
|
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_button_finalize (GObject *object)
|
|
{
|
|
GailButton *button = GAIL_BUTTON (object);
|
|
|
|
g_free (button->click_description);
|
|
g_free (button->press_description);
|
|
g_free (button->release_description);
|
|
g_free (button->click_keybinding);
|
|
if (button->action_idle_handler)
|
|
{
|
|
g_source_remove (button->action_idle_handler);
|
|
button->action_idle_handler = 0;
|
|
}
|
|
if (button->action_queue)
|
|
{
|
|
g_queue_free (button->action_queue);
|
|
}
|
|
if (button->textutil)
|
|
{
|
|
g_object_unref (button->textutil);
|
|
}
|
|
G_OBJECT_CLASS (gail_button_parent_class)->finalize (object);
|
|
}
|
|
|
|
static GtkWidget*
|
|
find_label_child (GtkContainer *container,
|
|
gint *index,
|
|
gboolean allow_many)
|
|
{
|
|
GList *children, *tmp_list;
|
|
GtkWidget *child;
|
|
|
|
children = gtk_container_get_children (container);
|
|
|
|
child = NULL;
|
|
for (tmp_list = children; tmp_list != NULL; tmp_list = tmp_list->next)
|
|
{
|
|
if (GTK_IS_LABEL (tmp_list->data))
|
|
{
|
|
if (!allow_many)
|
|
{
|
|
if (child)
|
|
{
|
|
child = NULL;
|
|
break;
|
|
}
|
|
child = GTK_WIDGET (tmp_list->data);
|
|
}
|
|
else
|
|
{
|
|
if (*index == 0)
|
|
{
|
|
child = GTK_WIDGET (tmp_list->data);
|
|
break;
|
|
}
|
|
(*index)--;
|
|
}
|
|
}
|
|
/*
|
|
* Label for button which are GtkTreeView column headers are in a
|
|
* GtkHBox in a GtkAlignment.
|
|
*/
|
|
else if (GTK_IS_ALIGNMENT (tmp_list->data))
|
|
{
|
|
GtkWidget *widget;
|
|
|
|
widget = gtk_bin_get_child (GTK_BIN (tmp_list->data));
|
|
if (GTK_IS_LABEL (widget))
|
|
{
|
|
if (!allow_many)
|
|
{
|
|
if (child)
|
|
{
|
|
child = NULL;
|
|
break;
|
|
}
|
|
child = widget;
|
|
}
|
|
else
|
|
{
|
|
if (*index == 0)
|
|
{
|
|
child = widget;
|
|
break;
|
|
}
|
|
(*index)--;
|
|
}
|
|
}
|
|
}
|
|
else if (GTK_IS_CONTAINER (tmp_list->data))
|
|
{
|
|
child = find_label_child (GTK_CONTAINER (tmp_list->data), index, allow_many);
|
|
if (child)
|
|
break;
|
|
}
|
|
}
|
|
g_list_free (children);
|
|
return child;
|
|
}
|
|
|
|
static GtkWidget*
|
|
get_label_from_button (GtkWidget *button,
|
|
gint index,
|
|
gboolean allow_many)
|
|
{
|
|
GtkWidget *child;
|
|
|
|
if (index > 0 && !allow_many)
|
|
g_warning ("Inconsistent values passed to get_label_from_button");
|
|
|
|
child = gtk_bin_get_child (GTK_BIN (button));
|
|
if (GTK_IS_ALIGNMENT (child))
|
|
child = gtk_bin_get_child (GTK_BIN (child));
|
|
|
|
if (GTK_IS_CONTAINER (child))
|
|
child = find_label_child (GTK_CONTAINER (child), &index, allow_many);
|
|
else if (!GTK_IS_LABEL (child))
|
|
child = NULL;
|
|
|
|
return child;
|
|
}
|
|
|
|
static void
|
|
count_labels (GtkContainer *container,
|
|
gint *n_labels)
|
|
{
|
|
GList *children, *tmp_list;
|
|
|
|
children = gtk_container_get_children (container);
|
|
|
|
for (tmp_list = children; tmp_list != NULL; tmp_list = tmp_list->next)
|
|
{
|
|
if (GTK_IS_LABEL (tmp_list->data))
|
|
{
|
|
(*n_labels)++;
|
|
}
|
|
/*
|
|
* Label for button which are GtkTreeView column headers are in a
|
|
* GtkHBox in a GtkAlignment.
|
|
*/
|
|
else if (GTK_IS_ALIGNMENT (tmp_list->data))
|
|
{
|
|
GtkWidget *widget;
|
|
|
|
widget = gtk_bin_get_child (GTK_BIN (tmp_list->data));
|
|
if (GTK_IS_LABEL (widget))
|
|
(*n_labels)++;
|
|
}
|
|
else if (GTK_IS_CONTAINER (tmp_list->data))
|
|
{
|
|
count_labels (GTK_CONTAINER (tmp_list->data), n_labels);
|
|
}
|
|
}
|
|
g_list_free (children);
|
|
}
|
|
|
|
static gint
|
|
get_n_labels_from_button (GtkWidget *button)
|
|
{
|
|
GtkWidget *child;
|
|
gint n_labels;
|
|
|
|
n_labels = 0;
|
|
|
|
child = gtk_bin_get_child (GTK_BIN (button));
|
|
if (GTK_IS_ALIGNMENT (child))
|
|
child = gtk_bin_get_child (GTK_BIN (child));
|
|
|
|
if (GTK_IS_CONTAINER (child))
|
|
count_labels (GTK_CONTAINER (child), &n_labels);
|
|
|
|
return n_labels;
|
|
}
|
|
|
|
static void
|
|
set_role_for_button (AtkObject *accessible,
|
|
GtkWidget *button)
|
|
{
|
|
GtkWidget *parent;
|
|
AtkRole role;
|
|
|
|
parent = gtk_widget_get_parent (button);
|
|
if (GTK_IS_TREE_VIEW (parent))
|
|
{
|
|
role = ATK_ROLE_TABLE_COLUMN_HEADER;
|
|
/*
|
|
* Even though the accessible parent of the column header will
|
|
* be reported as the table because the parent widget of the
|
|
* GtkTreeViewColumn's button is the GtkTreeView we set
|
|
* the accessible parent for column header to be the table
|
|
* to ensure that atk_object_get_index_in_parent() returns
|
|
* the correct value; see gail_widget_get_index_in_parent().
|
|
*/
|
|
atk_object_set_parent (accessible, gtk_widget_get_accessible (parent));
|
|
}
|
|
else
|
|
role = ATK_ROLE_PUSH_BUTTON;
|
|
|
|
accessible->role = role;
|
|
}
|
|
|
|
static gint
|
|
get_n_attached_menus (GtkWidget *widget)
|
|
{
|
|
GList *list_menus;
|
|
|
|
if (widget == NULL)
|
|
return 0;
|
|
|
|
list_menus = g_object_get_data (G_OBJECT (widget), GAIL_BUTTON_ATTACHED_MENUS);
|
|
if (list_menus == NULL)
|
|
return 0;
|
|
|
|
return g_list_length (list_menus);
|
|
}
|
|
|
|
static GtkWidget*
|
|
get_nth_attached_menu (GtkWidget *widget,
|
|
gint index)
|
|
{
|
|
GtkWidget *attached_menu;
|
|
GList *list_menus;
|
|
|
|
if (widget == NULL)
|
|
return NULL;
|
|
|
|
list_menus = g_object_get_data (G_OBJECT (widget), GAIL_BUTTON_ATTACHED_MENUS);
|
|
if (list_menus == NULL ||
|
|
index >= g_list_length (list_menus))
|
|
return NULL;
|
|
|
|
attached_menu = (GtkWidget *) g_list_nth_data (list_menus, index);
|
|
|
|
return attached_menu;
|
|
}
|