diff options
Diffstat (limited to 'e-util/gal-a11y-e-table-click-to-add.c')
-rw-r--r-- | e-util/gal-a11y-e-table-click-to-add.c | 358 |
1 files changed, 358 insertions, 0 deletions
diff --git a/e-util/gal-a11y-e-table-click-to-add.c b/e-util/gal-a11y-e-table-click-to-add.c new file mode 100644 index 0000000000..bebe8c44a9 --- /dev/null +++ b/e-util/gal-a11y-e-table-click-to-add.c @@ -0,0 +1,358 @@ +/* + * This program 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) version 3. + * + * This program 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 the program; if not, see <http://www.gnu.org/licenses/> + * + * + * Authors: + * Yuedong Du <yuedong.du@sun.com> + * + * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) + * + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "gal-a11y-e-table-click-to-add.h" + +#include <atk/atk.h> +#include <glib/gi18n.h> + +#include "e-table-click-to-add.h" +#include "e-table-group-leaf.h" +#include "e-table-group.h" +#include "gal-a11y-e-table-click-to-add-factory.h" +#include "gal-a11y-util.h" + +static AtkObjectClass *parent_class; +static GType parent_type; +static gint priv_offset; +#define GET_PRIVATE(object) \ + ((GalA11yETableClickToAddPrivate *) \ + (((gchar *) object) + priv_offset)) +#define PARENT_TYPE (parent_type) + +struct _GalA11yETableClickToAddPrivate { + gpointer rect; + gpointer row; +}; + +static gint +etcta_get_n_actions (AtkAction *action) +{ + return 1; +} + +static const gchar * +etcta_get_description (AtkAction *action, + gint i) +{ + if (i == 0) + return _("click to add"); + + return NULL; +} + +static const gchar * +etcta_action_get_name (AtkAction *action, + gint i) +{ + if (i == 0) + return _("click"); + + return NULL; +} + +static gboolean +idle_do_action (gpointer data) +{ + GtkLayout *layout; + GdkEventButton event; + ETableClickToAdd * etcta; + gint finished; + + g_return_val_if_fail (data!= NULL, FALSE); + + etcta = E_TABLE_CLICK_TO_ADD ( + atk_gobject_accessible_get_object ( + ATK_GOBJECT_ACCESSIBLE (data))); + g_return_val_if_fail (etcta, FALSE); + + layout = GTK_LAYOUT (GNOME_CANVAS_ITEM (etcta)->canvas); + + event.x = 0; + event.y = 0; + event.type = GDK_BUTTON_PRESS; + event.window = gtk_layout_get_bin_window (layout); + event.button = 1; + event.send_event = TRUE; + event.time = GDK_CURRENT_TIME; + event.axes = NULL; + + g_signal_emit_by_name (etcta, "event", &event, &finished); + + return FALSE; +} + +static gboolean +etcta_do_action (AtkAction *action, + gint i) +{ + g_return_val_if_fail (i == 0, FALSE); + + g_idle_add (idle_do_action, action); + + return TRUE; +} + +static void +atk_action_interface_init (AtkActionIface *iface) +{ + g_return_if_fail (iface != NULL); + + iface->do_action = etcta_do_action; + iface->get_n_actions = etcta_get_n_actions; + iface->get_description = etcta_get_description; + iface->get_name = etcta_action_get_name; +} + +static const gchar * +etcta_get_name (AtkObject *obj) +{ + ETableClickToAdd * etcta; + + g_return_val_if_fail (GAL_A11Y_IS_E_TABLE_CLICK_TO_ADD (obj), NULL); + + etcta = E_TABLE_CLICK_TO_ADD ( + atk_gobject_accessible_get_object ( + ATK_GOBJECT_ACCESSIBLE (obj))); + if (etcta && etcta->message != NULL) + return etcta->message; + + return _("click to add"); +} + +static gint +etcta_get_n_children (AtkObject *accessible) +{ + return 1; +} + +static AtkObject * +etcta_ref_child (AtkObject *accessible, + gint i) +{ + AtkObject * atk_obj = NULL; + ETableClickToAdd * etcta; + + if (i != 0) + return NULL; + + etcta = E_TABLE_CLICK_TO_ADD ( + atk_gobject_accessible_get_object ( + ATK_GOBJECT_ACCESSIBLE (accessible))); + + g_return_val_if_fail (etcta, NULL); + + if (etcta->rect) { + atk_obj = atk_gobject_accessible_for_object ( + G_OBJECT (etcta->rect)); + } else if (etcta->row) { + atk_obj = atk_gobject_accessible_for_object ( + G_OBJECT (etcta->row)); + } + + g_object_ref (atk_obj); + + return atk_obj; +} + +static AtkStateSet * +etcta_ref_state_set (AtkObject *accessible) +{ + AtkStateSet * state_set = NULL; + + state_set = ATK_OBJECT_CLASS (parent_class)->ref_state_set (accessible); + if (state_set != NULL) { + atk_state_set_add_state (state_set, ATK_STATE_SENSITIVE); + atk_state_set_add_state (state_set, ATK_STATE_SHOWING); + } + + return state_set; +} + +static void +etcta_class_init (GalA11yETableClickToAddClass *class) +{ + AtkObjectClass *atk_object_class = ATK_OBJECT_CLASS (class); + + parent_class = g_type_class_ref (PARENT_TYPE); + + atk_object_class->get_name = etcta_get_name; + atk_object_class->get_n_children = etcta_get_n_children; + atk_object_class->ref_child = etcta_ref_child; + atk_object_class->ref_state_set = etcta_ref_state_set; +} + +static void +etcta_init (GalA11yETableClickToAdd *a11y) +{ +} + +GType +gal_a11y_e_table_click_to_add_get_type (void) +{ + static GType type = 0; + + if (!type) { + AtkObjectFactory *factory; + + GTypeInfo info = { + sizeof (GalA11yETableClickToAddClass), + (GBaseInitFunc) NULL, + (GBaseFinalizeFunc) NULL, + (GClassInitFunc) etcta_class_init, + (GClassFinalizeFunc) NULL, + NULL, /* class_data */ + sizeof (GalA11yETableClickToAdd), + 0, + (GInstanceInitFunc) etcta_init, + NULL /* value_table */ + }; + + static const GInterfaceInfo atk_action_info = { + (GInterfaceInitFunc) atk_action_interface_init, + (GInterfaceFinalizeFunc) NULL, + NULL + }; + + factory = atk_registry_get_factory ( + atk_get_default_registry (), + GNOME_TYPE_CANVAS_ITEM); + + parent_type = atk_object_factory_get_accessible_type (factory); + type = gal_a11y_type_register_static_with_private ( + PARENT_TYPE, "GalA11yETableClickToAdd", &info, 0, + sizeof (GalA11yETableClickToAddPrivate), &priv_offset); + + g_type_add_interface_static (type, ATK_TYPE_ACTION, &atk_action_info); + + } + + return type; +} + +static gboolean +etcta_event (GnomeCanvasItem *item, + GdkEvent *e, + gpointer data) +{ + ETableClickToAdd *etcta = E_TABLE_CLICK_TO_ADD (item); + GalA11yETableClickToAdd *a11y; + GalA11yETableClickToAddPrivate *priv; + + g_return_val_if_fail (item, TRUE); + + g_return_val_if_fail (GAL_A11Y_IS_E_TABLE_CLICK_TO_ADD (data), FALSE); + a11y = GAL_A11Y_E_TABLE_CLICK_TO_ADD (data); + + priv = GET_PRIVATE (a11y); + + /* rect replaced by row. */ + if (etcta->rect == NULL && priv->rect != NULL) { + g_signal_emit_by_name (a11y, "children_changed::remove", 0, NULL, NULL); + + } + /* row inserted, and/or replaced by a new row. */ + if (etcta->row != NULL && priv->row == NULL) { + g_signal_emit_by_name (a11y, "children_changed::add", 0, NULL, NULL); + } else if (etcta->row != NULL && priv->row != NULL && etcta->row != priv->row) { + g_signal_emit_by_name (a11y, "children_changed::remove", 0, NULL, NULL); + g_signal_emit_by_name (a11y, "children_changed::add", 0, NULL, NULL); + } + + priv->rect = etcta->rect; + priv->row = etcta->row; + + return FALSE; +} + +static void +etcta_selection_cursor_changed (ESelectionModel *esm, + gint row, + gint col, + GalA11yETableClickToAdd *a11y) +{ + ETableClickToAdd *etcta; + AtkObject *row_a11y; + + etcta = E_TABLE_CLICK_TO_ADD ( + atk_gobject_accessible_get_object ( + ATK_GOBJECT_ACCESSIBLE (a11y))); + + if (etcta == NULL || etcta->row == NULL) + return; + + row_a11y = atk_gobject_accessible_for_object (G_OBJECT (etcta->row)); + if (row_a11y) { + AtkObject *cell_a11y; + + cell_a11y = g_object_get_data ( + G_OBJECT (row_a11y), "gail-focus-object"); + if (cell_a11y) { + atk_focus_tracker_notify (cell_a11y); + } + } +} + +AtkObject * +gal_a11y_e_table_click_to_add_new (GObject *widget) +{ + GalA11yETableClickToAdd *a11y; + ETableClickToAdd * etcta; + GalA11yETableClickToAddPrivate *priv; + + g_return_val_if_fail (widget != NULL, NULL); + + a11y = g_object_new (gal_a11y_e_table_click_to_add_get_type (), NULL); + priv = GET_PRIVATE (a11y); + + etcta = E_TABLE_CLICK_TO_ADD (widget); + + atk_object_initialize (ATK_OBJECT (a11y), etcta); + + priv->rect = etcta->rect; + priv->row = etcta->row; + + g_signal_connect_after ( + widget, "event", + G_CALLBACK (etcta_event), a11y); + + g_signal_connect ( + etcta->selection, "cursor_changed", + G_CALLBACK (etcta_selection_cursor_changed), a11y); + + return ATK_OBJECT (a11y); +} + +void +gal_a11y_e_table_click_to_add_init (void) +{ + if (atk_get_root ()) + atk_registry_set_factory_type ( + atk_get_default_registry (), + E_TYPE_TABLE_CLICK_TO_ADD, + gal_a11y_e_table_click_to_add_factory_get_type ()); +} + |