Radically reorganize source code.

- Collect all shell modules into a new top-level 'modules' directory:

      $(top_srcdir)/modules/addressbook
      $(top_srcdir)/modules/calendar
      $(top_srcdir)/modules/mail

  Nothing is allowed to link to these, not plugins nor other modules.

  THIS SOLVES BUG #571275 AND OPENS THE DOOR TO PORTING TO MAC OS X.

- Mimic the libevolution-mail-shared library from master (except drop
  the "shared" suffix) and have libevolution-mail-importers and all
  mail-related plugins link to it.

- Discard the a11y subdirectories and have the files live alongside
  their counterpart widgets.

1 files changed, 1327 insertions, 0 deletions

diff --git a/widgets/table/gal-a11y-e-table-item.c b/widgets/table/gal-a11y-e-table-item.c
new file mode 100644
index 0000000000..561b9a84d6
--- /dev/null
+++ b/widgets/table/gal-a11y-e-table-item.c
@@ -0,0 +1,1327 @@
+/*
+ * 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:
+ *		Christopher James Lahey <clahey@ximian.com>
+ *		Bolian Yin <bolian.yin@sun.com>
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#include <config.h>
+
+#include <string.h>
+
+#include <atk/atk.h>
+
+#include "a11y/gal-a11y-util.h"
+#include "table/e-table-click-to-add.h"
+#include "table/e-table-subset.h"
+#include "table/e-table.h"
+#include "table/e-tree.h"
+#include "misc/e-canvas.h"
+#include "misc/e-selection-model.h"
+
+#include "gal-a11y-e-table-item.h"
+#include "gal-a11y-e-table-item-factory.h"
+#include "gal-a11y-e-table-click-to-add.h"
+#include "gal-a11y-e-cell-registry.h"
+#include "gal-a11y-e-cell.h"
+#include "gal-a11y-e-table-column-header.h"
+
+#define CS_CLASS(a11y) (G_TYPE_INSTANCE_GET_CLASS ((a11y), C_TYPE_STREAM, GalA11yETableItemClass))
+static GObjectClass *parent_class;
+static AtkComponentIface *component_parent_iface;
+static GType parent_type;
+static gint priv_offset;
+static GQuark		quark_accessible_object = 0;
+#define GET_PRIVATE(object) ((GalA11yETableItemPrivate *) (((gchar *) object) + priv_offset))
+#define PARENT_TYPE (parent_type)
+
+struct _GalA11yETableItemPrivate {
+	gint cols;
+	gint rows;
+	gint selection_change_id;
+	gint cursor_change_id;
+	ETableCol ** columns;
+	ESelectionModel *selection;
+	AtkStateSet *state_set;
+	GtkWidget *widget;
+};
+
+static gboolean gal_a11y_e_table_item_ref_selection (GalA11yETableItem *a11y,
+						     ESelectionModel *selection);
+static gboolean gal_a11y_e_table_item_unref_selection (GalA11yETableItem *a11y);
+
+static AtkObject* eti_ref_at (AtkTable *table, gint row, gint column);
+
+static void
+item_destroyed (GtkObject *item, gpointer user_data)
+{
+	GalA11yETableItem *a11y = GAL_A11Y_E_TABLE_ITEM (user_data);
+	GalA11yETableItemPrivate *priv = GET_PRIVATE (a11y);
+
+	atk_state_set_add_state (priv->state_set, ATK_STATE_DEFUNCT);
+	atk_object_notify_state_change (ATK_OBJECT (a11y), ATK_STATE_DEFUNCT, TRUE);
+
+	if (priv->selection)
+		gal_a11y_e_table_item_unref_selection (a11y);
+
+}
+
+static AtkStateSet *
+eti_ref_state_set (AtkObject *accessible)
+{
+	GalA11yETableItemPrivate *priv = GET_PRIVATE (accessible);
+
+        g_object_ref(priv->state_set);
+
+        return priv->state_set;
+}
+
+inline static gint
+view_to_model_row(ETableItem *eti, gint row)
+{
+	if (eti->uses_source_model) {
+		ETableSubset *etss = E_TABLE_SUBSET(eti->table_model);
+		if (row >= 0 && row < etss->n_map) {
+			eti->row_guess = row;
+			return etss->map_table[row];
+		} else
+			return -1;
+	} else
+		return row;
+}
+
+inline static gint
+view_to_model_col(ETableItem *eti, gint col)
+{
+	ETableCol *ecol = e_table_header_get_column (eti->header, col);
+	return ecol ? ecol->col_idx : -1;
+}
+
+inline static gint
+model_to_view_row(ETableItem *eti, gint row)
+{
+	gint i;
+	if (row == -1)
+		return -1;
+	if (eti->uses_source_model) {
+		ETableSubset *etss = E_TABLE_SUBSET(eti->table_model);
+		if (eti->row_guess >= 0 && eti->row_guess < etss->n_map) {
+			if (etss->map_table[eti->row_guess] == row) {
+				return eti->row_guess;
+			}
+		}
+		for (i = 0; i < etss->n_map; i++) {
+			if (etss->map_table[i] == row)
+				return i;
+		}
+		return -1;
+	} else
+		return row;
+}
+
+inline static gint
+model_to_view_col(ETableItem *eti, gint col)
+{
+	gint i;
+	if (col == -1)
+		return -1;
+	for (i = 0; i < eti->cols; i++) {
+		ETableCol *ecol = e_table_header_get_column (eti->header, i);
+		if (ecol->col_idx == col)
+			return i;
+	}
+	return -1;
+}
+
+inline static GObject *
+eti_a11y_get_gobject (AtkObject *accessible)
+{
+	return atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (accessible));
+}
+
+static void
+eti_a11y_reset_focus_object (GalA11yETableItem *a11y, ETableItem *item, gboolean notify)
+{
+	ESelectionModel * esm;
+	gint cursor_row, cursor_col, view_row, view_col;
+	AtkObject *cell, *old_cell;
+
+	esm = item->selection;
+	g_return_if_fail (esm);
+
+	cursor_row = e_selection_model_cursor_row (esm);
+	cursor_col = e_selection_model_cursor_col (esm);
+
+	view_row = model_to_view_row (item, cursor_row);
+	view_col = model_to_view_col (item, cursor_col);
+
+	if (view_row == -1)
+		view_row = 0;
+	if (view_col == -1)
+		view_col = 0;
+
+	old_cell = (AtkObject *)g_object_get_data (G_OBJECT (a11y), "gail-focus-object");
+	if (old_cell && GAL_A11Y_IS_E_CELL (old_cell))
+		gal_a11y_e_cell_remove_state (GAL_A11Y_E_CELL (old_cell), ATK_STATE_FOCUSED, FALSE);
+	if (old_cell)
+		g_object_unref (old_cell);
+
+	cell = eti_ref_at (ATK_TABLE (a11y), view_row, view_col);
+
+	if (cell != NULL) {
+		g_object_set_data (G_OBJECT (a11y), "gail-focus-object", cell);
+		gal_a11y_e_cell_add_state (GAL_A11Y_E_CELL (cell), ATK_STATE_FOCUSED, FALSE);
+	} else
+		g_object_set_data (G_OBJECT (a11y), "gail-focus-object", NULL);
+
+	if (notify && cell)
+		atk_focus_tracker_notify (cell);
+}
+
+static void
+eti_dispose (GObject *object)
+{
+	GalA11yETableItem *a11y = GAL_A11Y_E_TABLE_ITEM (object);
+	GalA11yETableItemPrivate *priv = GET_PRIVATE (a11y);
+
+	if (priv->columns) {
+		g_free(priv->columns);
+		priv->columns = NULL;
+	}
+
+	if (parent_class->dispose)
+		parent_class->dispose (object);
+}
+
+/* Static functions */
+static gint
+eti_get_n_children (AtkObject *accessible)
+{
+	g_return_val_if_fail (GAL_A11Y_IS_E_TABLE_ITEM (accessible), 0);
+	if (!eti_a11y_get_gobject (accessible))
+		return 0;
+
+	return atk_table_get_n_columns (ATK_TABLE (accessible)) *
+		(atk_table_get_n_rows (ATK_TABLE (accessible)) + 1);
+}
+
+static AtkObject*
+eti_ref_child (AtkObject *accessible, gint index)
+{
+	ETableItem *item;
+	gint col, row;
+
+	g_return_val_if_fail (GAL_A11Y_IS_E_TABLE_ITEM (accessible), NULL);
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (accessible));
+	if (!item)
+		return NULL;
+
+	if (index < item->cols) {
+		ETableCol *ecol;
+		AtkObject *child;
+
+		ecol = e_table_header_get_column (item->header, index);
+		child = gal_a11y_e_table_column_header_new (ecol, item);
+		return child;
+	}
+	index -= item->cols;
+
+	col = index % item->cols;
+	row = index / item->cols;
+
+	return eti_ref_at (ATK_TABLE (accessible), row, col);
+}
+
+static void
+eti_get_extents (AtkComponent *component,
+		 gint *x,
+		 gint *y,
+		 gint *width,
+		 gint *height,
+		 AtkCoordType coord_type)
+{
+	ETableItem *item;
+	AtkObject *parent;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (component)));
+	if (!item)
+		return;
+
+	parent = ATK_OBJECT (component)->accessible_parent;
+	if (parent && ATK_IS_COMPONENT (parent))
+		atk_component_get_extents (ATK_COMPONENT (parent), x, y,
+					width, height,
+					coord_type);
+
+	if (parent && GAL_A11Y_IS_E_TABLE_CLICK_TO_ADD (parent)) {
+		ETableClickToAdd *etcta = E_TABLE_CLICK_TO_ADD (atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (parent)));
+		if (etcta) {
+			*width = etcta->width;
+			*height = etcta->height;
+		}
+	}
+}
+
+static AtkObject*
+eti_ref_accessible_at_point (AtkComponent *component,
+			     gint x,
+			     gint y,
+			     AtkCoordType coord_type)
+{
+	gint row = -1;
+	gint col = -1;
+	gint x_origin, y_origin;
+	ETableItem *item;
+	GtkWidget *tableOrTree;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (component)));
+	if (!item)
+		return NULL;
+
+	atk_component_get_position (component,
+				    &x_origin,
+				    &y_origin,
+				    coord_type);
+	x -= x_origin;
+	y -= y_origin;
+
+	tableOrTree = gtk_widget_get_parent (GTK_WIDGET (item->parent.canvas));
+
+	if (E_IS_TREE(tableOrTree))
+		e_tree_get_cell_at (E_TREE (tableOrTree), x, y, &row, &col);
+	else
+		e_table_get_cell_at (E_TABLE (tableOrTree), x, y, &row, &col);
+
+	if (row != -1 && col != -1) {
+		return eti_ref_at (ATK_TABLE (component), row, col);
+	} else {
+		return NULL;
+	}
+}
+
+
+static void
+cell_destroyed (gpointer data)
+{
+	GalA11yECell * cell;
+
+	g_return_if_fail (GAL_A11Y_IS_E_CELL (data));
+	cell = GAL_A11Y_E_CELL (data);
+
+	g_return_if_fail (cell->item && G_IS_OBJECT (cell->item));
+
+        if (cell->item) {
+                g_object_unref (cell->item);
+                cell->item = NULL;
+        }
+
+}
+
+/* atk table */
+static AtkObject*
+eti_ref_at (AtkTable *table, gint row, gint column)
+{
+	ETableItem *item;
+	AtkObject* ret;
+	GalA11yETableItemPrivate *priv = GET_PRIVATE (table);
+
+	if (atk_state_set_contains_state (priv->state_set, ATK_STATE_DEFUNCT))
+		return NULL;
+
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return NULL;
+
+	if (column >= 0 &&
+	    column < item->cols &&
+	    row >= 0 &&
+	    row < item->rows &&
+	    item->cell_views_realized) {
+		ECellView *cell_view = item->cell_views[column];
+		ETableCol *ecol = e_table_header_get_column (item->header, column);
+		ret = gal_a11y_e_cell_registry_get_object (NULL,
+							    item,
+							    cell_view,
+							    ATK_OBJECT (table),
+							    ecol->col_idx,
+							    column,
+							    row);
+		if (ATK_IS_OBJECT (ret)) {
+			g_object_weak_ref (G_OBJECT (ret),
+					   (GWeakNotify) cell_destroyed,
+					   ret);
+			/* if current cell is focused, add FOCUSED state */
+			if (e_selection_model_cursor_row (item->selection) == GAL_A11Y_E_CELL (ret)->row &&
+					e_selection_model_cursor_col (item->selection) == GAL_A11Y_E_CELL (ret)->model_col)
+				gal_a11y_e_cell_add_state (GAL_A11Y_E_CELL (ret), ATK_STATE_FOCUSED, FALSE);
+		} else
+			ret = NULL;
+
+		return ret;
+	}
+
+	return NULL;
+}
+
+static gint
+eti_get_index_at (AtkTable *table, gint row, gint column)
+{
+	ETableItem *item;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return -1;
+
+	return column + (row + 1) * item->cols;
+}
+
+static gint
+eti_get_column_at_index (AtkTable *table, gint index)
+{
+	ETableItem *item;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return -1;
+
+	return index % item->cols;
+}
+
+static gint
+eti_get_row_at_index (AtkTable *table, gint index)
+{
+	ETableItem *item;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return -1;
+
+	return index / item->cols - 1;
+}
+
+static gint
+eti_get_n_columns (AtkTable *table)
+{
+	ETableItem *item;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return -1;
+
+	return item->cols;
+}
+
+static gint
+eti_get_n_rows (AtkTable *table)
+{
+	ETableItem *item;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return -1;
+
+	return item->rows;
+}
+
+static gint
+eti_get_column_extent_at (AtkTable *table,
+			  gint row,
+			  gint column)
+{
+	ETableItem *item;
+	gint width;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return -1;
+
+	e_table_item_get_cell_geometry (item,
+					&row,
+					&column,
+					NULL,
+					NULL,
+					&width,
+					NULL);
+
+	return width;
+}
+
+static gint
+eti_get_row_extent_at (AtkTable *table,
+		       gint row,
+		       gint column)
+{
+	ETableItem *item;
+	gint height;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return -1;
+
+	e_table_item_get_cell_geometry (item,
+					&row,
+					&column,
+					NULL,
+					NULL,
+					NULL,
+					&height);
+
+	return height;
+}
+
+static AtkObject *
+eti_get_caption (AtkTable *table)
+{
+	/* Unimplemented */
+	return NULL;
+}
+
+static G_CONST_RETURN gchar *
+eti_get_column_description (AtkTable *table,
+			    gint column)
+{
+	ETableItem *item;
+	ETableCol *ecol;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return NULL;
+
+	ecol = e_table_header_get_column (item->header, column);
+
+	return ecol->text;
+}
+
+static AtkObject *
+eti_get_column_header (AtkTable *table, gint column)
+{
+	ETableItem *item;
+	ETableCol *ecol;
+	AtkObject *atk_obj = NULL;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return NULL;
+
+	ecol = e_table_header_get_column (item->header, column);
+	if (ecol) {
+		atk_obj = gal_a11y_e_table_column_header_new (ecol, item);
+	}
+
+	return atk_obj;
+}
+
+static G_CONST_RETURN gchar *
+eti_get_row_description (AtkTable *table,
+			 gint row)
+{
+	/* Unimplemented */
+	return NULL;
+}
+
+static AtkObject *
+eti_get_row_header (AtkTable *table,
+		    gint row)
+{
+	/* Unimplemented */
+	return NULL;
+}
+
+static AtkObject *
+eti_get_summary (AtkTable *table)
+{
+	/* Unimplemented */
+	return NULL;
+}
+
+static gboolean
+table_is_row_selected (AtkTable *table, gint row)
+{
+	ETableItem *item;
+	GalA11yETableItemPrivate *priv = GET_PRIVATE (table);
+
+	if (row < 0)
+		return FALSE;
+
+	if (atk_state_set_contains_state (priv->state_set, ATK_STATE_DEFUNCT))
+		return FALSE;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return FALSE;
+
+	return e_selection_model_is_row_selected(item->selection, view_to_model_row (item, row));
+}
+
+static gboolean
+table_is_selected (AtkTable *table, gint row, gint column)
+{
+	return table_is_row_selected (table, row);
+}
+
+static gint
+table_get_selected_rows (AtkTable *table, gint **rows_selected)
+{
+	ETableItem *item;
+	gint n_selected, row, index_selected;
+	GalA11yETableItemPrivate *priv = GET_PRIVATE (table);
+
+	if (atk_state_set_contains_state (priv->state_set, ATK_STATE_DEFUNCT))
+		return 0;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return 0;
+
+	n_selected = e_selection_model_selected_count (item->selection);
+	if (rows_selected) {
+		*rows_selected = (gint *) g_malloc (n_selected * sizeof (gint));
+
+		index_selected = 0;
+		for (row = 0; row < item->rows && index_selected < n_selected; ++row) {
+			if (atk_table_is_row_selected (table, row)) {
+				(*rows_selected)[index_selected] = row;
+				++index_selected;
+			}
+		}
+	}
+	return n_selected;
+}
+
+static gboolean
+table_add_row_selection (AtkTable *table, gint row)
+{
+	ETableItem *item;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return FALSE;
+
+	if (table_is_row_selected (table, row))
+		return TRUE;
+	e_selection_model_toggle_single_row (item->selection,
+					     view_to_model_row (item, row));
+
+	return TRUE;
+}
+
+static gboolean
+table_remove_row_selection (AtkTable *table, gint row)
+{
+	ETableItem *item;
+	GalA11yETableItemPrivate *priv = GET_PRIVATE (table);
+
+	if (atk_state_set_contains_state (priv->state_set, ATK_STATE_DEFUNCT))
+		return FALSE;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table)));
+	if (!item)
+		return FALSE;
+
+	if (!atk_table_is_row_selected (table, row))
+		return TRUE;
+	e_selection_model_toggle_single_row (item->selection, view_to_model_row (item, row));
+	return TRUE;
+}
+
+static void
+eti_atk_table_iface_init (AtkTableIface *iface)
+{
+	iface->ref_at = eti_ref_at;
+	iface->get_index_at = eti_get_index_at;
+	iface->get_column_at_index = eti_get_column_at_index;
+	iface->get_row_at_index = eti_get_row_at_index;
+	iface->get_n_columns = eti_get_n_columns;
+	iface->get_n_rows = eti_get_n_rows;
+	iface->get_column_extent_at = eti_get_column_extent_at;
+	iface->get_row_extent_at = eti_get_row_extent_at;
+	iface->get_caption = eti_get_caption;
+	iface->get_column_description = eti_get_column_description;
+	iface->get_column_header = eti_get_column_header;
+	iface->get_row_description = eti_get_row_description;
+	iface->get_row_header = eti_get_row_header;
+	iface->get_summary = eti_get_summary;
+
+	iface->is_row_selected = table_is_row_selected;
+	iface->is_selected = table_is_selected;
+	iface->get_selected_rows = table_get_selected_rows;
+	iface->add_row_selection = table_add_row_selection;
+	iface->remove_row_selection = table_remove_row_selection;
+}
+
+static void
+eti_atk_component_iface_init (AtkComponentIface *iface)
+{
+	component_parent_iface         = g_type_interface_peek_parent (iface);
+
+	iface->ref_accessible_at_point = eti_ref_accessible_at_point;
+	iface->get_extents             = eti_get_extents;
+}
+
+static void
+eti_rows_inserted (ETableModel * model, gint row, gint count,
+		   AtkObject * table_item)
+{
+	gint n_cols,n_rows,i,j;
+	GalA11yETableItem * item_a11y;
+	gint old_nrows;
+
+	g_return_if_fail (table_item);
+	item_a11y = GAL_A11Y_E_TABLE_ITEM (table_item);
+
+        n_cols = atk_table_get_n_columns (ATK_TABLE(table_item));
+	n_rows = atk_table_get_n_rows (ATK_TABLE(table_item));
+
+	old_nrows = GET_PRIVATE(item_a11y)->rows;
+
+	g_return_if_fail (n_cols > 0 && n_rows > 0);
+	g_return_if_fail (old_nrows == n_rows - count);
+
+	GET_PRIVATE(table_item)->rows = n_rows;
+
+	g_signal_emit_by_name (table_item, "row-inserted", row,
+			       count, NULL);
+
+        for (i = row; i < (row + count); i ++) {
+                for (j = 0; j < n_cols; j ++) {
+			g_signal_emit_by_name (table_item,
+					       "children_changed::add",
+                                               ( ((i + 1)*n_cols) + j), NULL, NULL);
+		}
+        }
+
+	g_signal_emit_by_name (table_item, "visible-data-changed");
+}
+
+static void
+eti_rows_deleted (ETableModel * model, gint row, gint count,
+		  AtkObject * table_item)
+{
+	gint i,j, n_rows, n_cols, old_nrows;
+	ETableItem *item = E_TABLE_ITEM (atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (table_item)));
+
+	n_rows = atk_table_get_n_rows (ATK_TABLE(table_item));
+        n_cols = atk_table_get_n_columns (ATK_TABLE(table_item));
+
+	old_nrows = GET_PRIVATE(table_item)->rows;
+
+	g_return_if_fail ( row+count <= old_nrows);
+	g_return_if_fail (old_nrows == n_rows + count);
+	GET_PRIVATE(table_item)->rows = n_rows;
+
+	g_signal_emit_by_name (table_item, "row-deleted", row,
+			       count, NULL);
+
+        for (i = row; i < (row + count); i ++) {
+                for (j = 0; j < n_cols; j ++) {
+			g_signal_emit_by_name (table_item,
+					       "children_changed::remove",
+                                               ( ((i + 1)*n_cols) + j), NULL, NULL);
+		}
+        }
+	g_signal_emit_by_name (table_item, "visible-data-changed");
+	eti_a11y_reset_focus_object ((GalA11yETableItem *)table_item, item, TRUE);
+}
+
+static void
+eti_tree_model_node_changed_cb (ETreeModel *model, ETreePath node, ETableItem *eti)
+{
+	AtkObject *atk_obj;
+	GalA11yETableItem *a11y;
+
+	g_return_if_fail (E_IS_TABLE_ITEM (eti));
+
+	atk_obj = atk_gobject_accessible_for_object (G_OBJECT (eti));
+	a11y = GAL_A11Y_E_TABLE_ITEM (atk_obj);
+
+	/* we can't figure out which rows are changed, so just send out a signal ... */
+	if  (GET_PRIVATE (a11y)->rows > 0)
+		g_signal_emit_by_name (a11y, "visible-data-changed");
+}
+
+enum {
+        ETI_HEADER_UNCHANGED = 0,
+        ETI_HEADER_REORDERED,
+        ETI_HEADER_NEW_ADDED,
+        ETI_HEADER_REMOVED
+};
+
+/*
+ * 1. Check what actually happened: column reorder, remove or add
+ * 2. Update cache
+ * 3. Emit signals
+ */
+static void
+eti_header_structure_changed (ETableHeader *eth, AtkObject *a11y)
+{
+
+        gboolean reorder_found=FALSE, added_found=FALSE, removed_found=FALSE;
+        GalA11yETableItem * a11y_item;
+        ETableCol ** cols, **prev_cols;
+        GalA11yETableItemPrivate *priv;
+        gint *state = NULL, *prev_state = NULL, *reorder = NULL;
+        gint i,j,n_rows,n_cols, prev_n_cols;
+
+        a11y_item = GAL_A11Y_E_TABLE_ITEM (a11y);
+        priv = GET_PRIVATE (a11y_item);
+
+	/* Assume rows do not changed. */
+        n_rows = priv->rows;
+
+        prev_n_cols = priv->cols;
+        prev_cols = priv->columns;
+
+        cols = e_table_header_get_columns (eth);
+	n_cols = eth->col_count;
+
+        g_return_if_fail (cols && prev_cols && n_cols > 0);
+
+        /* Init to ETI_HEADER_UNCHANGED. */
+        state = g_malloc0 (sizeof (gint) * n_cols);
+        prev_state = g_malloc0 (sizeof (gint) * prev_n_cols);
+        reorder = g_malloc0 (sizeof (gint) * n_cols);
+
+        /* Compare with previously saved column headers. */
+        for ( i = 0; i < n_cols && cols[i]; i ++ ) {
+                for ( j = 0; j < prev_n_cols && prev_cols[j]; j ++ ) {
+                        if ( prev_cols [j] == cols[i] && i != j ) {
+
+                                reorder_found = TRUE;
+                                state [i] = ETI_HEADER_REORDERED;
+				reorder [i] = j;
+
+                                break;
+                        } else if (prev_cols[j] == cols[i]) {
+                                /* OK, this column is not changed. */
+                                break;
+                        }
+                }
+
+                /* cols[i] is new added column. */
+                if ( j == prev_n_cols ) {
+			added_found = TRUE;
+                        state[i] = ETI_HEADER_NEW_ADDED;
+                }
+        }
+
+        /* Now try to find if there are removed columns. */
+        for (i = 0; i < prev_n_cols && prev_cols[i]; i ++) {
+                for (j = 0; j < n_cols && cols[j]; j ++)
+                        if ( prev_cols [j] == cols[i] )
+				break;
+
+                /* Removed columns found. */
+                if ( j == n_cols ) {
+			removed_found = TRUE;
+			prev_state[j] = ETI_HEADER_REMOVED;
+                }
+        }
+
+	/* If nothing interesting just return. */
+	if (!reorder_found && !added_found && !removed_found)
+		return;
+
+	/* Emit signals */
+	if (reorder_found)
+		g_signal_emit_by_name (G_OBJECT(a11y_item), "column_reordered");
+
+
+	if (removed_found) {
+		for (i = 0; i < prev_n_cols; i ++ ) {
+			if (prev_state[i] == ETI_HEADER_REMOVED) {
+				g_signal_emit_by_name (G_OBJECT(a11y_item), "column-deleted", i, 1);
+				for (j = 0; j < n_rows; j ++)
+					g_signal_emit_by_name (G_OBJECT(a11y_item), "children_changed::remove", ((j+1)*prev_n_cols+i), NULL, NULL);
+			}
+		}
+	}
+
+	if (added_found) {
+		for ( i = 0; i < n_cols; i ++ ) {
+			if (state[i] == ETI_HEADER_NEW_ADDED) {
+				g_signal_emit_by_name (G_OBJECT(a11y_item), "column-inserted", i, 1);
+				for (j = 0; j < n_rows; j ++)
+					g_signal_emit_by_name (G_OBJECT(a11y_item), "children_changed::add", ((j+1)*n_cols+i), NULL, NULL);
+			}
+		}
+	}
+
+	priv->cols = n_cols;
+
+	g_free (state);
+	g_free (reorder);
+	g_free (prev_state);
+
+	g_free (priv->columns);
+	priv->columns = cols;
+}
+
+
+static void
+eti_real_initialize (AtkObject *obj,
+		     gpointer data)
+{
+	ETableItem * eti;
+	ETableModel * model;
+
+	ATK_OBJECT_CLASS (parent_class)->initialize (obj, data);
+	eti = E_TABLE_ITEM (data);
+
+	model = eti->table_model;
+
+	g_signal_connect (model, "model-rows-inserted",
+			  G_CALLBACK (eti_rows_inserted),
+			  obj);
+	g_signal_connect (model, "model-rows-deleted",
+			  G_CALLBACK (eti_rows_deleted),
+			  obj);
+	g_signal_connect (G_OBJECT (eti->header), "structure_change",
+			  G_CALLBACK (eti_header_structure_changed), obj);
+
+}
+
+static void
+eti_class_init (GalA11yETableItemClass *klass)
+{
+	AtkObjectClass *atk_object_class = ATK_OBJECT_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	quark_accessible_object               = g_quark_from_static_string ("gtk-accessible-object");
+
+	parent_class                          = g_type_class_ref (PARENT_TYPE);
+
+	object_class->dispose                 = eti_dispose;
+
+	atk_object_class->get_n_children      = eti_get_n_children;
+	atk_object_class->ref_child           = eti_ref_child;
+	atk_object_class->initialize	      = eti_real_initialize;
+	atk_object_class->ref_state_set       = eti_ref_state_set;
+}
+
+static void
+eti_init (GalA11yETableItem *a11y)
+{
+	GalA11yETableItemPrivate *priv;
+
+	priv = GET_PRIVATE (a11y);
+
+	priv->selection_change_id = 0;
+	priv->cursor_change_id = 0;
+	priv->selection = NULL;
+}
+
+/* atk selection */
+
+static void             atk_selection_interface_init    (AtkSelectionIface      *iface);
+static gboolean         selection_add_selection    (AtkSelection           *selection,
+						    gint                   i);
+static gboolean         selection_clear_selection  (AtkSelection           *selection);
+static AtkObject*       selection_ref_selection    (AtkSelection           *selection,
+						    gint                   i);
+static gint             selection_get_selection_count (AtkSelection           *selection);
+static gboolean         selection_is_child_selected (AtkSelection           *selection,
+						     gint                   i);
+
+/* callbacks */
+static void eti_a11y_selection_model_removed_cb (ETableItem *eti,
+						 ESelectionModel *selection,
+						 gpointer data);
+static void eti_a11y_selection_model_added_cb (ETableItem *eti,
+					       ESelectionModel *selection,
+					       gpointer data);
+static void eti_a11y_selection_changed_cb (ESelectionModel *selection,
+					   GalA11yETableItem *a11y);
+static void eti_a11y_cursor_changed_cb (ESelectionModel *selection,
+					gint row, gint col,
+					GalA11yETableItem *a11y);
+
+/**
+ * gal_a11y_e_table_item_get_type:
+ * @void:
+ *
+ * Registers the &GalA11yETableItem class if necessary, and returns the type ID
+ * associated to it.
+ *
+ * Return value: The type ID of the &GalA11yETableItem class.
+ **/
+GType
+gal_a11y_e_table_item_get_type (void)
+{
+	static GType type = 0;
+
+	if (!type) {
+		AtkObjectFactory *factory;
+
+		GTypeInfo info = {
+			sizeof (GalA11yETableItemClass),
+			(GBaseInitFunc) NULL,
+			(GBaseFinalizeFunc) NULL,
+			(GClassInitFunc) eti_class_init,
+			(GClassFinalizeFunc) NULL,
+			NULL, /* class_data */
+			sizeof (GalA11yETableItem),
+			0,
+			(GInstanceInitFunc) eti_init,
+			NULL /* value_table_item */
+		};
+
+		static const GInterfaceInfo atk_component_info = {
+			(GInterfaceInitFunc) eti_atk_component_iface_init,
+			(GInterfaceFinalizeFunc) NULL,
+			NULL
+		};
+		static const GInterfaceInfo atk_table_info = {
+			(GInterfaceInitFunc) eti_atk_table_iface_init,
+			(GInterfaceFinalizeFunc) NULL,
+			NULL
+		};
+
+		static const GInterfaceInfo atk_selection_info = {
+			(GInterfaceInitFunc) atk_selection_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, "GalA11yETableItem", &info, 0,
+								   sizeof (GalA11yETableItemPrivate), &priv_offset);
+
+		g_type_add_interface_static (type, ATK_TYPE_COMPONENT, &atk_component_info);
+		g_type_add_interface_static (type, ATK_TYPE_TABLE, &atk_table_info);
+		g_type_add_interface_static (type, ATK_TYPE_SELECTION, &atk_selection_info);
+	}
+
+	return type;
+}
+
+AtkObject *
+gal_a11y_e_table_item_new (ETableItem *item)
+{
+	GalA11yETableItem *a11y;
+	AtkObject *accessible;
+	ESelectionModel * esm;
+	AtkObject *parent;
+	const gchar *name;
+
+	g_return_val_if_fail (item && item->cols >= 0 && item->rows >= 0, NULL);
+	a11y = g_object_new (gal_a11y_e_table_item_get_type (), NULL);
+
+	atk_object_initialize (ATK_OBJECT (a11y), item);
+
+	GET_PRIVATE (a11y)->state_set = atk_state_set_new ();
+
+	atk_state_set_add_state (GET_PRIVATE(a11y)->state_set, ATK_STATE_TRANSIENT);
+	atk_state_set_add_state (GET_PRIVATE(a11y)->state_set, ATK_STATE_ENABLED);
+	atk_state_set_add_state (GET_PRIVATE(a11y)->state_set, ATK_STATE_SENSITIVE);
+	atk_state_set_add_state (GET_PRIVATE(a11y)->state_set, ATK_STATE_SHOWING);
+	atk_state_set_add_state (GET_PRIVATE(a11y)->state_set, ATK_STATE_VISIBLE);
+
+
+	accessible  = ATK_OBJECT(a11y);
+
+	/* Initialize cell data. */
+	GET_PRIVATE (a11y)->cols = item->cols;
+	GET_PRIVATE (a11y)->rows = item->rows;
+
+        GET_PRIVATE (a11y)->columns = e_table_header_get_columns (item->header);
+        if ( GET_PRIVATE (a11y)->columns == NULL)
+                return NULL;
+
+	if (item) {
+		g_signal_connect (G_OBJECT(item), "selection_model_removed",
+				  G_CALLBACK (eti_a11y_selection_model_removed_cb), NULL);
+		g_signal_connect (G_OBJECT(item), "selection_model_added",
+				  G_CALLBACK (eti_a11y_selection_model_added_cb), NULL);
+		if (item->selection)
+			gal_a11y_e_table_item_ref_selection (a11y,
+							     item->selection);
+
+		/* find the TableItem's parent: table or tree */
+		GET_PRIVATE (a11y)->widget = gtk_widget_get_parent (GTK_WIDGET (item->parent.canvas));
+		parent = gtk_widget_get_accessible (GET_PRIVATE (a11y)->widget);
+		name = atk_object_get_name (parent);
+		if (name)
+			atk_object_set_name (accessible, name);
+		atk_object_set_parent (accessible, parent);
+
+		if (E_IS_TREE (GET_PRIVATE (a11y)->widget)) {
+			ETreeModel *model;
+			model = e_tree_get_model (E_TREE (GET_PRIVATE (a11y)->widget));
+			g_signal_connect (G_OBJECT(model), "node_changed",
+					G_CALLBACK (eti_tree_model_node_changed_cb), item);
+			accessible->role = ATK_ROLE_TREE_TABLE;
+		} else if (E_IS_TABLE (GET_PRIVATE (a11y)->widget)) {
+			accessible->role = ATK_ROLE_TABLE;
+		}
+	}
+
+	if (item)
+		g_signal_connect (G_OBJECT (item), "destroy",
+				   G_CALLBACK (item_destroyed),
+				   a11y);
+	esm = item->selection;
+
+	if (esm != NULL) {
+		eti_a11y_reset_focus_object (a11y, item, FALSE);
+	}
+
+	return ATK_OBJECT (a11y);
+}
+
+static gboolean
+gal_a11y_e_table_item_ref_selection (GalA11yETableItem *a11y,
+				     ESelectionModel *selection)
+{
+	GalA11yETableItemPrivate *priv;
+
+	g_return_val_if_fail (a11y && selection, FALSE);
+
+	priv = GET_PRIVATE (a11y);
+	priv->selection_change_id = g_signal_connect (
+	    G_OBJECT(selection), "selection_changed",
+	    G_CALLBACK (eti_a11y_selection_changed_cb), a11y);
+	priv->cursor_change_id = g_signal_connect (
+            G_OBJECT(selection), "cursor_changed",
+	    G_CALLBACK (eti_a11y_cursor_changed_cb), a11y);
+
+	priv->selection = selection;
+	g_object_ref (selection);
+
+	return TRUE;
+}
+
+static gboolean
+gal_a11y_e_table_item_unref_selection (GalA11yETableItem *a11y)
+{
+	GalA11yETableItemPrivate *priv;
+
+	g_return_val_if_fail (a11y, FALSE);
+
+	priv = GET_PRIVATE (a11y);
+
+	g_return_val_if_fail (priv->selection_change_id != 0, FALSE);
+	g_return_val_if_fail (priv->cursor_change_id != 0, FALSE);
+
+
+	g_signal_handler_disconnect (priv->selection,
+				     priv->selection_change_id);
+	g_signal_handler_disconnect (priv->selection,
+				     priv->cursor_change_id);
+	priv->cursor_change_id = 0;
+	priv->selection_change_id = 0;
+
+	g_object_unref (priv->selection);
+	priv->selection = NULL;
+
+	return TRUE;
+}
+
+/* callbacks */
+
+static void
+eti_a11y_selection_model_removed_cb (ETableItem *eti, ESelectionModel *selection,
+				     gpointer data)
+{
+	AtkObject *atk_obj;
+	GalA11yETableItem *a11y;
+
+	g_return_if_fail (E_IS_TABLE_ITEM (eti));
+	g_return_if_fail (E_IS_SELECTION_MODEL (selection));
+
+	atk_obj = atk_gobject_accessible_for_object (G_OBJECT (eti));
+	a11y = GAL_A11Y_E_TABLE_ITEM (atk_obj);
+
+	if (selection == GET_PRIVATE (a11y)->selection)
+		gal_a11y_e_table_item_unref_selection (a11y);
+}
+
+static void
+eti_a11y_selection_model_added_cb (ETableItem *eti, ESelectionModel *selection,
+				   gpointer data)
+{
+	AtkObject *atk_obj;
+	GalA11yETableItem *a11y;
+
+	g_return_if_fail (E_IS_TABLE_ITEM (eti));
+	g_return_if_fail (E_IS_SELECTION_MODEL (selection));
+
+	atk_obj = atk_gobject_accessible_for_object (G_OBJECT (eti));
+	a11y = GAL_A11Y_E_TABLE_ITEM (atk_obj);
+
+	if (GET_PRIVATE (a11y)->selection)
+		gal_a11y_e_table_item_unref_selection (a11y);
+	gal_a11y_e_table_item_ref_selection (a11y, selection);
+}
+
+static void
+eti_a11y_selection_changed_cb (ESelectionModel *selection, GalA11yETableItem *a11y)
+{
+	GalA11yETableItemPrivate *priv = GET_PRIVATE (a11y);
+
+	if (atk_state_set_contains_state (priv->state_set, ATK_STATE_DEFUNCT))
+		return;
+
+	g_return_if_fail (GAL_A11Y_IS_E_TABLE_ITEM (a11y));
+
+	g_signal_emit_by_name (a11y, "selection_changed");
+}
+
+static void
+eti_a11y_cursor_changed_cb (ESelectionModel *selection,
+			    gint row, gint col,  GalA11yETableItem *a11y)
+{
+	ETableItem *item;
+	GalA11yETableItemPrivate *priv = GET_PRIVATE (a11y);
+
+	g_return_if_fail (GAL_A11Y_IS_E_TABLE_ITEM (a11y));
+
+	if (atk_state_set_contains_state (priv->state_set, ATK_STATE_DEFUNCT))
+		return;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (a11y)));
+
+	g_return_if_fail (item);
+
+	if (row == -1 && col == -1)
+		return;
+	eti_a11y_reset_focus_object (a11y, item, TRUE);
+}
+
+/* atk selection */
+
+static void atk_selection_interface_init (AtkSelectionIface *iface)
+{
+	g_return_if_fail (iface != NULL);
+	iface->add_selection = selection_add_selection;
+	iface->clear_selection = selection_clear_selection;
+	iface->ref_selection = selection_ref_selection;
+	iface->get_selection_count = selection_get_selection_count;
+	iface->is_child_selected = selection_is_child_selected;
+}
+
+static gboolean
+selection_add_selection (AtkSelection *selection, gint index)
+{
+	AtkTable *table;
+	gint row, col, cursor_row, cursor_col, model_row, model_col;
+	ETableItem *item;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (selection)));
+	if (!item)
+		return FALSE;
+
+	table = ATK_TABLE (selection);
+
+	row = atk_table_get_row_at_index (table, index);
+	col = atk_table_get_column_at_index (table, index);
+
+	model_row = view_to_model_row (item, row);
+	model_col = view_to_model_col (item, col);
+
+	cursor_row = e_selection_model_cursor_row (item->selection);
+	cursor_col = e_selection_model_cursor_col (item->selection);
+
+	/* check whether is selected already */
+	if (model_row == cursor_row && model_col == cursor_col)
+		return TRUE;
+
+	if (model_row != cursor_row) {
+		/* we need to make the item get focus */
+		e_canvas_item_grab_focus (GNOME_CANVAS_ITEM (item), TRUE);
+
+		/* FIXME, currently we only support single row selection */
+		atk_selection_clear_selection (selection);
+		atk_table_add_row_selection (table, row);
+	}
+
+	e_selection_model_change_cursor (item->selection,
+					 model_row,
+					 model_col);
+	e_selection_model_cursor_changed (item->selection,
+					  model_row,
+					  model_col);
+	e_selection_model_cursor_activated (item->selection,
+					    model_row,
+					    model_col);
+	return TRUE;
+}
+
+static gboolean
+selection_clear_selection (AtkSelection *selection)
+{
+	ETableItem *item;
+
+	item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (selection)));
+	if (!item)
+		return FALSE;
+
+	e_selection_model_clear (item->selection);
+	return TRUE;
+}
+
+static AtkObject *
+selection_ref_selection (AtkSelection *selection, gint index)
+{
+	AtkTable *table;
+	gint row, col;
+
+	table = ATK_TABLE (selection);
+	row = atk_table_get_row_at_index (table, index);
+	col = atk_table_get_column_at_index (table, index);
+	if (!atk_table_is_row_selected (table, row))
+		return NULL;
+
+	return eti_ref_at (table, row, col);
+}
+
+static gint
+selection_get_selection_count (AtkSelection *selection)
+{
+	AtkTable *table;
+	gint n_selected;
+
+	table = ATK_TABLE (selection);
+	n_selected = atk_table_get_selected_rows (table, NULL);
+	if (n_selected > 0)
+		n_selected *= atk_table_get_n_columns (table);
+	return n_selected;
+}
+
+static gboolean
+selection_is_child_selected (AtkSelection *selection, gint i)
+{
+	gint row;
+
+	row = atk_table_get_row_at_index (ATK_TABLE (selection), i);
+	return atk_table_is_row_selected (ATK_TABLE (selection), row);
+}
+
+void
+gal_a11y_e_table_item_init (void)
+{
+	if (atk_get_root ())
+		atk_registry_set_factory_type (atk_get_default_registry (),
+					E_TABLE_ITEM_TYPE,
+					gal_a11y_e_table_item_factory_get_type ());
+}
+