diff options
Diffstat (limited to 'a11y/e-table/gal-a11y-e-table-item.c')
| -rw-r--r-- | a11y/e-table/gal-a11y-e-table-item.c | 1310 |
1 files changed, 0 insertions, 1310 deletions
diff --git a/a11y/e-table/gal-a11y-e-table-item.c b/a11y/e-table/gal-a11y-e-table-item.c deleted file mode 100644 index 2b45bfeef7..0000000000 --- a/a11y/e-table/gal-a11y-e-table-item.c +++ /dev/null @@ -1,1310 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* - * Authors: - * Christopher James Lahey <clahey@ximian.com> - * Bolian Yin <bolian.yin@sun.com> - * - * Copyright (C) 2002 Ximian, Inc. - */ - -#include <config.h> -#include <string.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-util.h" -#include <gal/e-table/e-table-subset.h> -#include <gal/widgets/e-selection-model.h> -#include <gal/widgets/e-canvas.h> -#include <gal/e-table/e-table.h> -#include <gal/e-table/e-table-click-to-add.h> -#include <gal/e-table/e-tree.h> - -#include <atk/atkobject.h> -#include <atk/atktable.h> -#include <atk/atkcomponent.h> -#include <atk/atkobjectfactory.h> -#include <atk/atkregistry.h> -#include <atk/atkgobjectaccessible.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 *) (((char *) object) + priv_offset)) -#define PARENT_TYPE (parent_type) - -struct _GalA11yETableItemPrivate { - gint cols; - gint rows; - int selection_change_id; - int 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, int 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, int 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, int row) -{ - int 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, int col) -{ - int 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_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)); -} - -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; - - /* don't support column header now */ - - 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) -{ - int row = -1; - int col = -1; - int 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 * 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; -} - -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; - int 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; - int 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 = atk_gobject_accessible_for_object (G_OBJECT (ecol)); - if (atk_obj) { - if (ecol->text) - atk_object_set_name (atk_obj, ecol->text); - atk_object_set_role (atk_obj, ATK_ROLE_TABLE_COLUMN_HEADER); - } - } - - 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 (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, int row, int 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*n_cols) + j), NULL, NULL); - } - } - - g_signal_emit_by_name (table_item, "visible-data-changed"); -} - -static void -eti_rows_deleted (ETableModel * model, int row, int count, - AtkObject * table_item) -{ - gint i,j, n_rows, n_cols, old_nrows; - - 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*n_cols) + j), NULL, NULL); - } - } - g_signal_emit_by_name (table_item, "visible-data-changed"); -} - -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*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*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, - int row, int 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; - int n; - ESelectionModel * esm; - AtkObject * cell; - AtkObject *parent; - const char *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. */ - n = item->cols * item->rows; - 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) { - int cursor_row, cursor_col, view_row, view_col; - - 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; - - 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); - } - } - - 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, - int row, int col, GalA11yETableItem *a11y) -{ - AtkObject * cell; - int view_row, view_col; - 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; - - view_row = model_to_view_row (item, row); - view_col = model_to_view_col (item, col); - - if (view_col == -1) - view_col = 0; - cell = eti_ref_at (ATK_TABLE (a11y), view_row, view_col); - if (cell != NULL) { - AtkObject *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); - - g_object_set_data (G_OBJECT(a11y), "gail-focus-object", cell); - - if (ATK_IS_OBJECT (cell)) - g_signal_emit_by_name (a11y, - "active-descendant-changed", - cell); - } - -} - -/* 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 ()); -} - |