static gboolean
gal_a11y_e_cell_grab_focus (AtkComponent *component)
{
GalA11yECell *a11y;
gint index;
GtkWidget *toplevel;
GalA11yETableItem *a11yTableItem;
a11y = GAL_A11Y_E_CELL (component);
/* for e_cell_vbox's children, we just grab the e_cell_vbox */
if (GAL_A11Y_IS_E_CELL_VBOX (a11y->parent)) {
return atk_component_grab_focus (ATK_COMPONENT (a11y->parent));
}
a11yTableItem = GAL_A11Y_E_TABLE_ITEM (a11y->parent);
index = atk_object_get_index_in_parent (ATK_OBJECT (a11y));
atk_selection_clear_selection (ATK_SELECTION (a11yTableItem));
atk_selection_add_selection (ATK_SELECTION (a11yTableItem), index);
gtk_widget_grab_focus (
GTK_WIDGET (GNOME_CANVAS_ITEM (a11y->item)->canvas));
toplevel = gtk_widget_get_toplevel (
GTK_WIDGET (GNOME_CANVAS_ITEM (a11y->item)->canvas));
if (toplevel && gtk_widget_is_toplevel (toplevel))
gtk_window_present (GTK_WINDOW (toplevel));
return 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");
}
static void
eti_dispose (GObject *object)
{
GalA11yETableItem *a11y = GAL_A11Y_E_TABLE_ITEM (object);
GalA11yETableItemPrivate *priv = GET_PRIVATE (a11y);
if (priv->columns) {
free_columns (priv->columns);
priv->columns = NULL;
}
if (priv->item) {
g_object_weak_unref (G_OBJECT (priv->item), item_finalized, a11y);
priv->item = NULL;
}
if (parent_class->dispose)
parent_class->dispose (object);
}
static gboolean
is_valid (AtkObject *cell)
{
GalA11yECell *a11y = GAL_A11Y_E_CELL (cell);
GalA11yETableItem *a11yItem = GAL_A11Y_E_TABLE_ITEM (a11y->parent);
AtkStateSet *item_ss;
gboolean ret = TRUE;
item_ss = atk_object_ref_state_set (ATK_OBJECT (a11yItem));
if (atk_state_set_contains_state (item_ss, ATK_STATE_DEFUNCT))
ret = FALSE;
g_object_unref (item_ss);
if (ret && atk_state_set_contains_state (a11y->state_set, ATK_STATE_DEFUNCT))
ret = FALSE;
return ret;
}
static void
item_finalized (gpointer user_data,
GObject *gone_item)
{
GalA11yETableItem *a11y;
GalA11yETableItemPrivate *priv;
a11y = GAL_A11Y_E_TABLE_ITEM (user_data);
priv = GET_PRIVATE (a11y);
priv->item = NULL;
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);
g_object_unref (a11y);
}
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");
}
/*
* 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) * (MAX (prev_n_cols, n_cols) + 1));
prev_state = g_malloc0 (sizeof (gint) * (MAX (prev_n_cols, n_cols) + 1));
reorder = g_malloc0 (sizeof (gint) * (MAX (prev_n_cols, n_cols) + 1));
/* 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 (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 (
a11y_item, "column-deleted", i, 1);
for (j = 0; j < n_rows; j++)
g_signal_emit_by_name (
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 (
a11y_item, "column-inserted", i, 1);
for (j = 0; j < n_rows; j++)
g_signal_emit_by_name (
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);
free_columns (priv->columns);
priv->columns = cols;
}
