+++ /dev/null
-/* GAIL - The GNOME Accessibility Implementation Library
- * Copyright 2001, 2002, 2003 Sun Microsystems Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-
-#undef GTK_DISABLE_DEPRECATED
-
-#include <gtk/gtk.h>
-#include "gailcombo.h"
-
-static void gail_combo_class_init (GailComboClass *klass);
-static void gail_combo_init (GailCombo *combo);
-static void gail_combo_real_initialize (AtkObject *obj,
- gpointer data);
-
-static void gail_combo_selection_changed_gtk (GtkWidget *widget,
- gpointer data);
-
-static gint gail_combo_get_n_children (AtkObject *obj);
-static AtkObject* gail_combo_ref_child (AtkObject *obj,
- gint i);
-static void gail_combo_finalize (GObject *object);
-static void atk_action_interface_init (AtkActionIface *iface);
-
-static gboolean gail_combo_do_action (AtkAction *action,
- gint i);
-static gboolean idle_do_action (gpointer data);
-static gint gail_combo_get_n_actions (AtkAction *action)
-;
-static G_CONST_RETURN gchar* gail_combo_get_description(AtkAction *action,
- gint i);
-static G_CONST_RETURN gchar* gail_combo_get_name (AtkAction *action,
- gint i);
-static gboolean gail_combo_set_description(AtkAction *action,
- gint i,
- const gchar *desc);
-
-static void atk_selection_interface_init (AtkSelectionIface *iface);
-static gboolean gail_combo_add_selection (AtkSelection *selection,
- gint i);
-static gboolean gail_combo_clear_selection (AtkSelection *selection);
-static AtkObject* gail_combo_ref_selection (AtkSelection *selection,
- gint i);
-static gint gail_combo_get_selection_count (AtkSelection *selection);
-static gboolean gail_combo_is_child_selected (AtkSelection *selection,
- gint i);
-static gboolean gail_combo_remove_selection (AtkSelection *selection,
- gint i);
-
-static gint _gail_combo_button_release (gpointer data);
-static gint _gail_combo_popup_release (gpointer data);
-
-
-G_DEFINE_TYPE_WITH_CODE (GailCombo, gail_combo, GAIL_TYPE_CONTAINER,
- G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init)
- G_IMPLEMENT_INTERFACE (ATK_TYPE_SELECTION, atk_selection_interface_init))
-
-static void
-gail_combo_class_init (GailComboClass *klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
-
- gobject_class->finalize = gail_combo_finalize;
-
- class->get_n_children = gail_combo_get_n_children;
- class->ref_child = gail_combo_ref_child;
- class->initialize = gail_combo_real_initialize;
-}
-
-static void
-gail_combo_init (GailCombo *combo)
-{
- combo->press_description = NULL;
- combo->old_selection = NULL;
- combo->deselect_idle_handler = 0;
- combo->select_idle_handler = 0;
-}
-
-static void
-gail_combo_real_initialize (AtkObject *obj,
- gpointer data)
-{
- GtkCombo *combo;
- GtkList *list;
- GList *slist;
- GailCombo *gail_combo;
-
- ATK_OBJECT_CLASS (gail_combo_parent_class)->initialize (obj, data);
-
- combo = GTK_COMBO (data);
-
- list = GTK_LIST (combo->list);
- slist = list->selection;
-
- gail_combo = GAIL_COMBO (obj);
- if (slist && slist->data)
- {
- gail_combo->old_selection = slist->data;
- }
- g_signal_connect (combo->list,
- "selection_changed",
- G_CALLBACK (gail_combo_selection_changed_gtk),
- data);
- atk_object_set_parent (gtk_widget_get_accessible (combo->entry), obj);
- atk_object_set_parent (gtk_widget_get_accessible (combo->popup), obj);
-
- obj->role = ATK_ROLE_COMBO_BOX;
-}
-
-static gboolean
-notify_deselect (gpointer data)
-{
- GailCombo *combo;
-
- combo = GAIL_COMBO (data);
-
- combo->old_selection = NULL;
- combo->deselect_idle_handler = 0;
- g_signal_emit_by_name (data, "selection_changed");
-
- return FALSE;
-}
-
-static gboolean
-notify_select (gpointer data)
-{
- GailCombo *combo;
-
- combo = GAIL_COMBO (data);
-
- combo->select_idle_handler = 0;
- g_signal_emit_by_name (data, "selection_changed");
-
- return FALSE;
-}
-
-static void
-gail_combo_selection_changed_gtk (GtkWidget *widget,
- gpointer data)
-{
- GtkCombo *combo;
- GtkList *list;
- GList *slist;
- AtkObject *obj;
- GailCombo *gail_combo;
-
- combo = GTK_COMBO (data);
- list = GTK_LIST (combo->list);
-
- slist = list->selection;
-
- obj = gtk_widget_get_accessible (GTK_WIDGET (data));
- gail_combo = GAIL_COMBO (obj);
- if (slist && slist->data)
- {
- if (slist->data != gail_combo->old_selection)
- {
- gail_combo->old_selection = slist->data;
- if (gail_combo->select_idle_handler == 0)
- gail_combo->select_idle_handler = gdk_threads_add_idle (notify_select, gail_combo);
- }
- if (gail_combo->deselect_idle_handler)
- {
- g_source_remove (gail_combo->deselect_idle_handler);
- gail_combo->deselect_idle_handler = 0;
- }
- }
- else
- {
- if (gail_combo->deselect_idle_handler == 0)
- gail_combo->deselect_idle_handler = gdk_threads_add_idle (notify_deselect, gail_combo);
- if (gail_combo->select_idle_handler)
- {
- g_source_remove (gail_combo->select_idle_handler);
- gail_combo->select_idle_handler = 0;
- }
- }
-}
-
-/*
- * The children of a GailCombo are the list of items and the entry field
- */
-static gint
-gail_combo_get_n_children (AtkObject* obj)
-{
- gint n_children = 2;
- GtkWidget *widget;
-
- g_return_val_if_fail (GAIL_IS_COMBO (obj), 0);
-
- widget = GTK_ACCESSIBLE (obj)->widget;
- if (widget == NULL)
- /*
- * State is defunct
- */
- return 0;
-
- return n_children;
-}
-
-static AtkObject*
-gail_combo_ref_child (AtkObject *obj,
- gint i)
-{
- AtkObject *accessible;
- GtkWidget *widget;
-
- g_return_val_if_fail (GAIL_IS_COMBO (obj), NULL);
-
- if (i < 0 || i > 1)
- return NULL;
-
- widget = GTK_ACCESSIBLE (obj)->widget;
- if (widget == NULL)
- /*
- * State is defunct
- */
- return NULL;
-
- if (i == 0)
- accessible = gtk_widget_get_accessible (GTK_COMBO (widget)->popup);
- else
- accessible = gtk_widget_get_accessible (GTK_COMBO (widget)->entry);
-
- g_object_ref (accessible);
- return accessible;
-}
-
-static void
-atk_action_interface_init (AtkActionIface *iface)
-{
- iface->do_action = gail_combo_do_action;
- iface->get_n_actions = gail_combo_get_n_actions;
- iface->get_description = gail_combo_get_description;
- iface->get_name = gail_combo_get_name;
- iface->set_description = gail_combo_set_description;
-}
-
-static gboolean
-gail_combo_do_action (AtkAction *action,
- gint i)
-{
- GailCombo *combo;
- GtkWidget *widget;
-
- widget = GTK_ACCESSIBLE (action)->widget;
- if (widget == NULL)
- /*
- * State is defunct
- */
- return FALSE;
-
- if (!gtk_widget_get_sensitive (widget) || !gtk_widget_get_visible (widget))
- return FALSE;
-
- combo = GAIL_COMBO (action);
- if (i == 0)
- {
- if (combo->action_idle_handler)
- return FALSE;
-
- combo->action_idle_handler = gdk_threads_add_idle (idle_do_action, combo);
- return TRUE;
- }
- else
- return FALSE;
-}
-
-/*
- * This action is the pressing of the button on the combo box.
- * The behavior is different depending on whether the list is being
- * displayed or removed.
- *
- * A button press event is simulated on the appropriate widget and
- * a button release event is simulated in an idle function.
- */
-static gboolean
-idle_do_action (gpointer data)
-{
- GtkCombo *combo;
- GtkWidget *action_widget;
- GtkWidget *widget;
- GailCombo *gail_combo;
- gboolean do_popup;
- GdkEvent tmp_event;
-
- gail_combo = GAIL_COMBO (data);
- gail_combo->action_idle_handler = 0;
- widget = GTK_ACCESSIBLE (gail_combo)->widget;
- if (widget == NULL /* State is defunct */ ||
- !gtk_widget_get_sensitive (widget) || !gtk_widget_get_visible (widget))
- return FALSE;
-
- combo = GTK_COMBO (widget);
-
- do_popup = !gtk_widget_get_mapped (combo->popwin);
-
- 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;
-
- if (do_popup)
- {
- /* Pop up list */
- action_widget = combo->button;
-
- gtk_widget_event (action_widget, &tmp_event);
-
- /* FIXME !*/
- g_idle_add (_gail_combo_button_release, combo);
- }
- else
- {
- /* Pop down list */
- tmp_event.button.window = combo->list->window;
- gdk_window_set_user_data (combo->list->window, combo->button);
- action_widget = combo->popwin;
-
- gtk_widget_event (action_widget, &tmp_event);
- /* FIXME !*/
- g_idle_add (_gail_combo_popup_release, combo);
- }
-
- return FALSE;
-}
-
-static gint
-gail_combo_get_n_actions (AtkAction *action)
-{
- /*
- * The default behavior of a combo box is to have one action -
- */
- return 1;
-}
-
-static G_CONST_RETURN gchar*
-gail_combo_get_description (AtkAction *action,
- gint i)
-{
- if (i == 0)
- {
- GailCombo *combo;
-
- combo = GAIL_COMBO (action);
- return combo->press_description;
- }
- else
- return NULL;
-}
-
-static G_CONST_RETURN gchar*
-gail_combo_get_name (AtkAction *action,
- gint i)
-{
- if (i == 0)
- return "press";
- else
- return NULL;
-}
-
-static void
-atk_selection_interface_init (AtkSelectionIface *iface)
-{
- iface->add_selection = gail_combo_add_selection;
- iface->clear_selection = gail_combo_clear_selection;
- iface->ref_selection = gail_combo_ref_selection;
- iface->get_selection_count = gail_combo_get_selection_count;
- iface->is_child_selected = gail_combo_is_child_selected;
- iface->remove_selection = gail_combo_remove_selection;
- /*
- * select_all_selection does not make sense for a combo box
- * so no implementation is provided.
- */
-}
-
-static gboolean
-gail_combo_add_selection (AtkSelection *selection,
- gint i)
-{
- GtkCombo *combo;
- GtkWidget *widget;
-
- widget = GTK_ACCESSIBLE (selection)->widget;
- if (widget == NULL)
- /*
- * State is defunct
- */
- return FALSE;
-
- combo = GTK_COMBO (widget);
-
- gtk_list_select_item (GTK_LIST (combo->list), i);
- return TRUE;
-}
-
-static gboolean
-gail_combo_clear_selection (AtkSelection *selection)
-{
- GtkCombo *combo;
- GtkWidget *widget;
-
- widget = GTK_ACCESSIBLE (selection)->widget;
- if (widget == NULL)
- /*
- * State is defunct
- */
- return FALSE;
-
- combo = GTK_COMBO (widget);
-
- gtk_list_unselect_all (GTK_LIST (combo->list));
- return TRUE;
-}
-
-static AtkObject*
-gail_combo_ref_selection (AtkSelection *selection,
- gint i)
-{
- GtkCombo *combo;
- GList * list;
- GtkWidget *item;
- AtkObject *obj;
- GtkWidget *widget;
-
- widget = GTK_ACCESSIBLE (selection)->widget;
- if (widget == NULL)
- /*
- * State is defunct
- */
- return NULL;
-
- combo = GTK_COMBO (widget);
-
- /*
- * A combo box can have only one selection.
- */
- if (i != 0)
- return NULL;
-
- list = GTK_LIST (combo->list)->selection;
-
- if (list == NULL)
- return NULL;
-
- item = GTK_WIDGET (list->data);
-
- obj = gtk_widget_get_accessible (item);
- g_object_ref (obj);
- return obj;
-}
-
-static gint
-gail_combo_get_selection_count (AtkSelection *selection)
-{
- GtkCombo *combo;
- GList * list;
- GtkWidget *widget;
-
- widget = GTK_ACCESSIBLE (selection)->widget;
- if (widget == NULL)
- /*
- * State is defunct
- */
- return 0;
-
- combo = GTK_COMBO (widget);
-
- /*
- * The number of children currently selected is either 1 or 0 so we
- * do not bother to count the elements of the selected list.
- */
- list = GTK_LIST (combo->list)->selection;
-
- if (list == NULL)
- return 0;
- else
- return 1;
-}
-
-static gboolean
-gail_combo_is_child_selected (AtkSelection *selection,
- gint i)
-{
- GtkCombo *combo;
- GList * list;
- GtkWidget *item;
- gint j;
- GtkWidget *widget;
-
- widget = GTK_ACCESSIBLE (selection)->widget;
- if (widget == NULL)
- /*
- * State is defunct
- */
- return FALSE;
-
- combo = GTK_COMBO (widget);
-
- list = GTK_LIST (combo->list)->selection;
-
- if (list == NULL)
- return FALSE;
-
- item = GTK_WIDGET (list->data);
-
- j = g_list_index (GTK_LIST (combo->list)->children, item);
-
- return (j == i);
-}
-
-static gboolean
-gail_combo_remove_selection (AtkSelection *selection,
- gint i)
-{
- if (atk_selection_is_child_selected (selection, i))
- atk_selection_clear_selection (selection);
-
- return TRUE;
-}
-
-static gint
-_gail_combo_popup_release (gpointer data)
-{
- GtkCombo *combo;
- GtkWidget *action_widget;
- GdkEvent tmp_event;
-
- GDK_THREADS_ENTER ();
-
- combo = GTK_COMBO (data);
- if (combo->current_button == 0)
- {
- GDK_THREADS_LEAVE ();
- return FALSE;
- }
-
- tmp_event.button.type = GDK_BUTTON_RELEASE;
- tmp_event.button.button = 1;
- tmp_event.button.time = GDK_CURRENT_TIME;
- action_widget = combo->button;
-
- gtk_widget_event (action_widget, &tmp_event);
-
- GDK_THREADS_LEAVE ();
-
- return FALSE;
-}
-
-static gint
-_gail_combo_button_release (gpointer data)
-{
- GtkCombo *combo;
- GtkWidget *action_widget;
- GdkEvent tmp_event;
-
- GDK_THREADS_ENTER ();
-
- combo = GTK_COMBO (data);
- if (combo->current_button == 0)
- {
- GDK_THREADS_LEAVE ();
- return FALSE;
- }
-
- tmp_event.button.type = GDK_BUTTON_RELEASE;
- tmp_event.button.button = 1;
- tmp_event.button.window = combo->list->window;
- tmp_event.button.time = GDK_CURRENT_TIME;
- gdk_window_set_user_data (combo->list->window, combo->button);
- action_widget = combo->list;
-
- gtk_widget_event (action_widget, &tmp_event);
-
- GDK_THREADS_LEAVE ();
-
- return FALSE;
-}
-
-static gboolean
-gail_combo_set_description (AtkAction *action,
- gint i,
- const gchar *desc)
-{
- if (i == 0)
- {
- GailCombo *combo;
-
- combo = GAIL_COMBO (action);
- g_free (combo->press_description);
- combo->press_description = g_strdup (desc);
- return TRUE;
- }
- else
- return FALSE;
-}
-
-static void
-gail_combo_finalize (GObject *object)
-{
- GailCombo *combo = GAIL_COMBO (object);
-
- g_free (combo->press_description);
- if (combo->action_idle_handler)
- {
- g_source_remove (combo->action_idle_handler);
- combo->action_idle_handler = 0;
- }
- if (combo->deselect_idle_handler)
- {
- g_source_remove (combo->deselect_idle_handler);
- combo->deselect_idle_handler = 0;
- }
- if (combo->select_idle_handler)
- {
- g_source_remove (combo->select_idle_handler);
- combo->select_idle_handler = 0;
- }
- G_OBJECT_CLASS (gail_combo_parent_class)->finalize (object);
-}
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