2007-12-18 13:51:12 +00:00
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/* 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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2008-06-22 14:28:52 +00:00
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#include "config.h"
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2007-12-23 12:27:33 +00:00
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2007-12-18 13:51:12 +00:00
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#include <string.h>
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#include <gtk/gtk.h>
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#include "gailnotebook.h"
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#include "gailnotebookpage.h"
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#include "gail-private-macros.h"
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static void gail_notebook_class_init (GailNotebookClass *klass);
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2007-12-23 12:24:59 +00:00
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static void gail_notebook_init (GailNotebook *notebook);
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2007-12-18 13:51:12 +00:00
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static void gail_notebook_finalize (GObject *object);
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static void gail_notebook_real_initialize (AtkObject *obj,
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gpointer data);
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static void gail_notebook_real_notify_gtk (GObject *obj,
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GParamSpec *pspec);
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static AtkObject* gail_notebook_ref_child (AtkObject *obj,
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gint i);
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static gint gail_notebook_real_remove_gtk (GtkContainer *container,
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GtkWidget *widget,
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gpointer data);
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static void atk_selection_interface_init (AtkSelectionIface *iface);
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static gboolean gail_notebook_add_selection (AtkSelection *selection,
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gint i);
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static AtkObject* gail_notebook_ref_selection (AtkSelection *selection,
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gint i);
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static gint gail_notebook_get_selection_count (AtkSelection *selection);
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static gboolean gail_notebook_is_child_selected (AtkSelection *selection,
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gint i);
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static AtkObject* find_child_in_list (GList *list,
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gint index);
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static void check_cache (GailNotebook *gail_notebook,
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GtkNotebook *notebook);
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static void reset_cache (GailNotebook *gail_notebook,
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gint index);
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static void create_notebook_page_accessible (GailNotebook *gail_notebook,
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GtkNotebook *notebook,
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gint index,
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gboolean insert_before,
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GList *list);
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static void gail_notebook_child_parent_set (GtkWidget *widget,
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GtkWidget *old_parent,
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gpointer data);
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static gboolean gail_notebook_focus_cb (GtkWidget *widget,
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GtkDirectionType type);
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static gboolean gail_notebook_check_focus_tab (gpointer data);
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static void gail_notebook_destroyed (gpointer data);
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2007-12-23 12:24:59 +00:00
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G_DEFINE_TYPE_WITH_CODE (GailNotebook, gail_notebook, GAIL_TYPE_CONTAINER,
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G_IMPLEMENT_INTERFACE (ATK_TYPE_SELECTION, atk_selection_interface_init))
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2007-12-18 13:51:12 +00:00
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static void
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gail_notebook_class_init (GailNotebookClass *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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GailWidgetClass *widget_class;
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GailContainerClass *container_class;
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widget_class = (GailWidgetClass*)klass;
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container_class = (GailContainerClass*)klass;
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gobject_class->finalize = gail_notebook_finalize;
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widget_class->notify_gtk = gail_notebook_real_notify_gtk;
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class->ref_child = gail_notebook_ref_child;
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class->initialize = gail_notebook_real_initialize;
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/*
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* We do not provide an implementation of get_n_children
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* as the implementation in GailContainer returns the correct
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* number of children.
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*/
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container_class->remove_gtk = gail_notebook_real_remove_gtk;
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}
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static void
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2007-12-23 12:24:59 +00:00
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gail_notebook_init (GailNotebook *notebook)
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2007-12-18 13:51:12 +00:00
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{
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notebook->page_cache = NULL;
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notebook->selected_page = -1;
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notebook->focus_tab_page = -1;
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notebook->remove_index = -1;
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notebook->idle_focus_id = 0;
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}
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static AtkObject*
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gail_notebook_ref_child (AtkObject *obj,
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gint i)
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{
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AtkObject *accessible = NULL;
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GailNotebook *gail_notebook;
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GtkNotebook *gtk_notebook;
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GtkWidget *widget;
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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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gail_notebook = GAIL_NOTEBOOK (obj);
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gtk_notebook = GTK_NOTEBOOK (widget);
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2010-07-02 20:39:02 +00:00
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if (gail_notebook->page_count < gtk_notebook_get_n_pages (gtk_notebook))
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2007-12-18 13:51:12 +00:00
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check_cache (gail_notebook, gtk_notebook);
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accessible = find_child_in_list (gail_notebook->page_cache, i);
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if (accessible != NULL)
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g_object_ref (accessible);
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return accessible;
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}
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static void
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gail_notebook_page_added (GtkNotebook *gtk_notebook,
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GtkWidget *child,
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guint page_num,
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gpointer data)
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{
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AtkObject *atk_obj;
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GailNotebook *notebook;
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atk_obj = gtk_widget_get_accessible (GTK_WIDGET (gtk_notebook));
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notebook = GAIL_NOTEBOOK (atk_obj);
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create_notebook_page_accessible (notebook, gtk_notebook, page_num, FALSE, NULL);
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2008-11-24 06:33:34 +00:00
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notebook->page_count++;
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2007-12-18 13:51:12 +00:00
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}
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static void
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gail_notebook_real_initialize (AtkObject *obj,
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gpointer data)
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{
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GailNotebook *notebook;
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GtkNotebook *gtk_notebook;
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gint i;
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2007-12-23 12:24:59 +00:00
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ATK_OBJECT_CLASS (gail_notebook_parent_class)->initialize (obj, data);
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2007-12-18 13:51:12 +00:00
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notebook = GAIL_NOTEBOOK (obj);
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gtk_notebook = GTK_NOTEBOOK (data);
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2010-07-02 20:39:02 +00:00
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for (i = 0; i < gtk_notebook_get_n_pages (gtk_notebook); i++)
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2007-12-18 13:51:12 +00:00
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{
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create_notebook_page_accessible (notebook, gtk_notebook, i, FALSE, NULL);
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}
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notebook->page_count = i;
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notebook->selected_page = gtk_notebook_get_current_page (gtk_notebook);
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2010-07-02 20:39:02 +00:00
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2007-12-18 13:51:12 +00:00
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g_signal_connect (gtk_notebook,
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"focus",
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G_CALLBACK (gail_notebook_focus_cb),
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NULL);
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g_signal_connect (gtk_notebook,
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"page-added",
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G_CALLBACK (gail_notebook_page_added),
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NULL);
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g_object_weak_ref (G_OBJECT(gtk_notebook),
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(GWeakNotify) gail_notebook_destroyed,
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obj);
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obj->role = ATK_ROLE_PAGE_TAB_LIST;
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}
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static void
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gail_notebook_real_notify_gtk (GObject *obj,
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GParamSpec *pspec)
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{
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GtkWidget *widget;
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AtkObject* atk_obj;
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widget = GTK_WIDGET (obj);
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atk_obj = gtk_widget_get_accessible (widget);
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if (strcmp (pspec->name, "page") == 0)
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{
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gint page_num, old_page_num;
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gint focus_page_num = 0;
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gint old_focus_page_num;
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GailNotebook *gail_notebook;
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GtkNotebook *gtk_notebook;
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gail_notebook = GAIL_NOTEBOOK (atk_obj);
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gtk_notebook = GTK_NOTEBOOK (widget);
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2010-07-02 20:39:02 +00:00
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if (gail_notebook->page_count < gtk_notebook_get_n_pages (gtk_notebook))
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2007-12-18 13:51:12 +00:00
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check_cache (gail_notebook, gtk_notebook);
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/*
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* Notify SELECTED state change for old and new page
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*/
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old_page_num = gail_notebook->selected_page;
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page_num = gtk_notebook_get_current_page (gtk_notebook);
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gail_notebook->selected_page = page_num;
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2010-07-02 20:39:02 +00:00
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gail_notebook->focus_tab_page = page_num;
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2007-12-18 13:51:12 +00:00
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old_focus_page_num = gail_notebook->focus_tab_page;
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2010-07-02 20:39:02 +00:00
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2007-12-18 13:51:12 +00:00
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if (page_num != old_page_num)
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{
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AtkObject *obj;
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if (old_page_num != -1)
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{
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obj = gail_notebook_ref_child (atk_obj, old_page_num);
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if (obj)
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{
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atk_object_notify_state_change (obj,
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ATK_STATE_SELECTED,
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FALSE);
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g_object_unref (obj);
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}
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}
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obj = gail_notebook_ref_child (atk_obj, page_num);
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if (obj)
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{
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atk_object_notify_state_change (obj,
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ATK_STATE_SELECTED,
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TRUE);
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g_object_unref (obj);
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/*
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* The page which is being displayed has changed but there is
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* no need to tell the focus tracker as the focus page will also
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* change or a widget in the page will receive focus if the
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* Notebook does not have tabs.
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*/
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}
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g_signal_emit_by_name (atk_obj, "selection_changed");
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g_signal_emit_by_name (atk_obj, "visible_data_changed");
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}
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if (gtk_notebook_get_show_tabs (gtk_notebook) &&
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(focus_page_num != old_focus_page_num))
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{
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if (gail_notebook->idle_focus_id)
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g_source_remove (gail_notebook->idle_focus_id);
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2007-12-22 20:18:13 +00:00
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gail_notebook->idle_focus_id = gdk_threads_add_idle (gail_notebook_check_focus_tab, atk_obj);
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2007-12-18 13:51:12 +00:00
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}
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}
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else
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2007-12-23 12:24:59 +00:00
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GAIL_WIDGET_CLASS (gail_notebook_parent_class)->notify_gtk (obj, pspec);
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2007-12-18 13:51:12 +00:00
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}
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static void
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gail_notebook_finalize (GObject *object)
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{
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GailNotebook *notebook = GAIL_NOTEBOOK (object);
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GList *list;
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/*
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* Get rid of the GailNotebookPage objects which we have cached.
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*/
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list = notebook->page_cache;
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if (list != NULL)
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{
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while (list)
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{
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g_object_unref (list->data);
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list = list->next;
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}
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}
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g_list_free (notebook->page_cache);
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2007-12-22 20:18:13 +00:00
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if (notebook->idle_focus_id)
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g_source_remove (notebook->idle_focus_id);
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2007-12-23 12:24:59 +00:00
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G_OBJECT_CLASS (gail_notebook_parent_class)->finalize (object);
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2007-12-18 13:51:12 +00:00
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}
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static void
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atk_selection_interface_init (AtkSelectionIface *iface)
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{
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iface->add_selection = gail_notebook_add_selection;
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iface->ref_selection = gail_notebook_ref_selection;
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iface->get_selection_count = gail_notebook_get_selection_count;
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iface->is_child_selected = gail_notebook_is_child_selected;
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/*
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* The following don't make any sense for GtkNotebook widgets.
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* Unsupported AtkSelection interfaces:
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* clear_selection();
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* remove_selection();
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* select_all_selection();
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*/
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}
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/*
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* GtkNotebook only supports the selection of one page at a time.
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* Selecting a page unselects any previous selection, so this
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* changes the current selection instead of adding to it.
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*/
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static gboolean
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gail_notebook_add_selection (AtkSelection *selection,
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gint i)
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{
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GtkNotebook *notebook;
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GtkWidget *widget;
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widget = GTK_ACCESSIBLE (selection)->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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notebook = GTK_NOTEBOOK (widget);
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gtk_notebook_set_current_page (notebook, i);
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return TRUE;
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}
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static AtkObject*
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gail_notebook_ref_selection (AtkSelection *selection,
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gint i)
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{
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AtkObject *accessible;
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GtkWidget *widget;
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GtkNotebook *notebook;
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gint pagenum;
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/*
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* A note book can have only one selection.
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*/
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gail_return_val_if_fail (i == 0, NULL);
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g_return_val_if_fail (GAIL_IS_NOTEBOOK (selection), NULL);
|
|
|
|
|
|
|
|
widget = GTK_ACCESSIBLE (selection)->widget;
|
|
|
|
if (widget == NULL)
|
|
|
|
/* State is defunct */
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
notebook = GTK_NOTEBOOK (widget);
|
|
|
|
pagenum = gtk_notebook_get_current_page (notebook);
|
|
|
|
gail_return_val_if_fail (pagenum != -1, NULL);
|
|
|
|
accessible = gail_notebook_ref_child (ATK_OBJECT (selection), pagenum);
|
|
|
|
|
|
|
|
return accessible;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Always return 1 because there can only be one page
|
|
|
|
* selected at any time
|
|
|
|
*/
|
|
|
|
static gint
|
|
|
|
gail_notebook_get_selection_count (AtkSelection *selection)
|
|
|
|
{
|
|
|
|
GtkWidget *widget;
|
|
|
|
GtkNotebook *notebook;
|
|
|
|
|
|
|
|
widget = GTK_ACCESSIBLE (selection)->widget;
|
|
|
|
if (widget == NULL)
|
|
|
|
/*
|
|
|
|
* State is defunct
|
|
|
|
*/
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
notebook = GTK_NOTEBOOK (widget);
|
|
|
|
if (notebook == NULL)
|
|
|
|
return 0;
|
|
|
|
else
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
gail_notebook_is_child_selected (AtkSelection *selection,
|
|
|
|
gint i)
|
|
|
|
{
|
|
|
|
GtkWidget *widget;
|
|
|
|
GtkNotebook *notebook;
|
|
|
|
gint pagenumber;
|
|
|
|
|
|
|
|
widget = GTK_ACCESSIBLE (selection)->widget;
|
|
|
|
if (widget == NULL)
|
|
|
|
/*
|
|
|
|
* State is defunct
|
|
|
|
*/
|
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
|
|
|
|
notebook = GTK_NOTEBOOK (widget);
|
|
|
|
pagenumber = gtk_notebook_get_current_page(notebook);
|
|
|
|
|
|
|
|
if (pagenumber == i)
|
|
|
|
return TRUE;
|
|
|
|
else
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static AtkObject*
|
|
|
|
find_child_in_list (GList *list,
|
|
|
|
gint index)
|
|
|
|
{
|
|
|
|
AtkObject *obj = NULL;
|
|
|
|
|
|
|
|
while (list)
|
|
|
|
{
|
|
|
|
if (GAIL_NOTEBOOK_PAGE (list->data)->index == index)
|
|
|
|
{
|
|
|
|
obj = ATK_OBJECT (list->data);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
list = list->next;
|
|
|
|
}
|
|
|
|
return obj;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
check_cache (GailNotebook *gail_notebook,
|
|
|
|
GtkNotebook *notebook)
|
|
|
|
{
|
|
|
|
GList *gtk_list;
|
|
|
|
GList *gail_list;
|
|
|
|
gint i;
|
|
|
|
|
2010-07-02 20:39:02 +00:00
|
|
|
gtk_list = gtk_container_get_children (GTK_CONTAINER (notebook));
|
2007-12-18 13:51:12 +00:00
|
|
|
gail_list = gail_notebook->page_cache;
|
|
|
|
|
|
|
|
i = 0;
|
|
|
|
while (gtk_list)
|
|
|
|
{
|
|
|
|
if (!gail_list)
|
|
|
|
{
|
|
|
|
create_notebook_page_accessible (gail_notebook, notebook, i, FALSE, NULL);
|
|
|
|
}
|
|
|
|
else if (GAIL_NOTEBOOK_PAGE (gail_list->data)->page != gtk_list->data)
|
|
|
|
{
|
|
|
|
create_notebook_page_accessible (gail_notebook, notebook, i, TRUE, gail_list);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
gail_list = gail_list->next;
|
|
|
|
}
|
|
|
|
i++;
|
|
|
|
gtk_list = gtk_list->next;
|
|
|
|
}
|
2010-07-02 20:39:02 +00:00
|
|
|
g_list_free (gtk_list);
|
|
|
|
|
2007-12-18 13:51:12 +00:00
|
|
|
gail_notebook->page_count = i;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
reset_cache (GailNotebook *gail_notebook,
|
|
|
|
gint index)
|
|
|
|
{
|
|
|
|
GList *l;
|
|
|
|
|
|
|
|
for (l = gail_notebook->page_cache; l; l = l->next)
|
|
|
|
{
|
|
|
|
if (GAIL_NOTEBOOK_PAGE (l->data)->index > index)
|
|
|
|
GAIL_NOTEBOOK_PAGE (l->data)->index -= 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
create_notebook_page_accessible (GailNotebook *gail_notebook,
|
|
|
|
GtkNotebook *notebook,
|
|
|
|
gint index,
|
|
|
|
gboolean insert_before,
|
|
|
|
GList *list)
|
|
|
|
{
|
|
|
|
AtkObject *obj;
|
|
|
|
|
|
|
|
obj = gail_notebook_page_new (notebook, index);
|
|
|
|
g_object_ref (obj);
|
|
|
|
if (insert_before)
|
|
|
|
gail_notebook->page_cache = g_list_insert_before (gail_notebook->page_cache, list, obj);
|
|
|
|
else
|
|
|
|
gail_notebook->page_cache = g_list_append (gail_notebook->page_cache, obj);
|
|
|
|
g_signal_connect (gtk_notebook_get_nth_page (notebook, index),
|
|
|
|
"parent_set",
|
|
|
|
G_CALLBACK (gail_notebook_child_parent_set),
|
|
|
|
obj);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gail_notebook_child_parent_set (GtkWidget *widget,
|
|
|
|
GtkWidget *old_parent,
|
|
|
|
gpointer data)
|
|
|
|
{
|
|
|
|
GailNotebook *gail_notebook;
|
|
|
|
|
|
|
|
gail_return_if_fail (old_parent != NULL);
|
|
|
|
gail_notebook = GAIL_NOTEBOOK (gtk_widget_get_accessible (old_parent));
|
|
|
|
gail_notebook->remove_index = GAIL_NOTEBOOK_PAGE (data)->index;
|
|
|
|
}
|
|
|
|
|
|
|
|
static gint
|
|
|
|
gail_notebook_real_remove_gtk (GtkContainer *container,
|
|
|
|
GtkWidget *widget,
|
|
|
|
gpointer data)
|
|
|
|
{
|
|
|
|
GailNotebook *gail_notebook;
|
|
|
|
AtkObject *obj;
|
|
|
|
gint index;
|
|
|
|
|
|
|
|
g_return_val_if_fail (container != NULL, 1);
|
|
|
|
gail_notebook = GAIL_NOTEBOOK (gtk_widget_get_accessible (GTK_WIDGET (container)));
|
|
|
|
index = gail_notebook->remove_index;
|
|
|
|
gail_notebook->remove_index = -1;
|
|
|
|
|
|
|
|
obj = find_child_in_list (gail_notebook->page_cache, index);
|
|
|
|
g_return_val_if_fail (obj, 1);
|
|
|
|
gail_notebook->page_cache = g_list_remove (gail_notebook->page_cache, obj);
|
|
|
|
gail_notebook->page_count -= 1;
|
|
|
|
reset_cache (gail_notebook, index);
|
|
|
|
g_signal_emit_by_name (gail_notebook,
|
|
|
|
"children_changed::remove",
|
|
|
|
GAIL_NOTEBOOK_PAGE (obj)->index,
|
|
|
|
obj, NULL);
|
|
|
|
g_object_unref (obj);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
gail_notebook_focus_cb (GtkWidget *widget,
|
|
|
|
GtkDirectionType type)
|
|
|
|
{
|
|
|
|
AtkObject *atk_obj = gtk_widget_get_accessible (widget);
|
|
|
|
GailNotebook *gail_notebook = GAIL_NOTEBOOK (atk_obj);
|
|
|
|
|
|
|
|
switch (type)
|
|
|
|
{
|
|
|
|
case GTK_DIR_LEFT:
|
|
|
|
case GTK_DIR_RIGHT:
|
2007-12-22 20:18:13 +00:00
|
|
|
if (gail_notebook->idle_focus_id == 0)
|
|
|
|
gail_notebook->idle_focus_id = gdk_threads_add_idle (gail_notebook_check_focus_tab, atk_obj);
|
2007-12-18 13:51:12 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
gail_notebook_check_focus_tab (gpointer data)
|
|
|
|
{
|
|
|
|
GtkWidget *widget;
|
|
|
|
AtkObject *atk_obj;
|
|
|
|
gint focus_page_num, old_focus_page_num;
|
|
|
|
GailNotebook *gail_notebook;
|
|
|
|
GtkNotebook *gtk_notebook;
|
|
|
|
|
|
|
|
atk_obj = ATK_OBJECT (data);
|
|
|
|
gail_notebook = GAIL_NOTEBOOK (atk_obj);
|
|
|
|
widget = GTK_ACCESSIBLE (atk_obj)->widget;
|
|
|
|
|
|
|
|
gtk_notebook = GTK_NOTEBOOK (widget);
|
|
|
|
|
|
|
|
gail_notebook->idle_focus_id = 0;
|
|
|
|
|
2010-07-02 20:39:02 +00:00
|
|
|
focus_page_num = gtk_notebook_get_current_page (gtk_notebook);
|
|
|
|
if (focus_page_num == -1)
|
2007-12-22 20:18:13 +00:00
|
|
|
return FALSE;
|
2007-12-18 13:51:12 +00:00
|
|
|
|
|
|
|
old_focus_page_num = gail_notebook->focus_tab_page;
|
|
|
|
gail_notebook->focus_tab_page = focus_page_num;
|
|
|
|
if (old_focus_page_num != focus_page_num)
|
|
|
|
{
|
|
|
|
AtkObject *obj;
|
|
|
|
|
|
|
|
obj = atk_object_ref_accessible_child (atk_obj, focus_page_num);
|
|
|
|
atk_focus_tracker_notify (obj);
|
|
|
|
g_object_unref (obj);
|
|
|
|
}
|
|
|
|
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gail_notebook_destroyed (gpointer data)
|
|
|
|
{
|
|
|
|
GailNotebook *gail_notebook = GAIL_NOTEBOOK (data);
|
|
|
|
|
|
|
|
if (gail_notebook->idle_focus_id)
|
2007-12-22 20:18:13 +00:00
|
|
|
{
|
|
|
|
g_source_remove (gail_notebook->idle_focus_id);
|
|
|
|
gail_notebook->idle_focus_id = 0;
|
|
|
|
}
|
2007-12-18 13:51:12 +00:00
|
|
|
}
|