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/*
* Copyright (c) 2010, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javafx.scene.control.skin;
import java.util.ArrayList;
import java.util.List;
import com.sun.javafx.scene.control.Properties;
import com.sun.javafx.scene.control.behavior.BehaviorBase;
import com.sun.javafx.scene.control.skin.Utils;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.ObjectProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.EventHandler;
import javafx.scene.AccessibleAction;
import javafx.scene.AccessibleAttribute;
import javafx.scene.Node;
import javafx.scene.control.Button;
import javafx.scene.control.Control;
import javafx.scene.control.ResizeFeaturesBase;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TablePosition;
import javafx.scene.control.TableRow;
import javafx.scene.control.TableSelectionModel;
import javafx.scene.control.TableView;
import javafx.scene.control.TableView.TableViewFocusModel;
import javafx.scene.control.TableView.TableViewSelectionModel;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.Region;
import javafx.util.Callback;
import com.sun.javafx.scene.control.behavior.TableViewBehavior;
/**
* Default skin implementation for the {@link TableView} control.
*
* @see TableView
* @since 9
*/
public class TableViewSkin extends TableViewSkinBase, TableRow, TableColumn> {
/***************************************************************************
* *
* Private Fields *
* *
**************************************************************************/
private final TableViewBehavior behavior;
/***************************************************************************
* *
* Constructors *
* *
**************************************************************************/
/**
* Creates a new TableViewSkin instance, installing the necessary child
* nodes into the Control {@link Control#getChildren() children} list, as
* well as the necessary input mappings for handling key, mouse, etc events.
*
* @param control The control that this skin should be installed onto.
*/
public TableViewSkin(final TableView control) {
super(control);
// install default input map for the TableView control
behavior = new TableViewBehavior<>(control);
// control.setInputMap(behavior.getInputMap());
flow.setFixedCellSize(control.getFixedCellSize());
flow.setCellFactory(flow -> createCell());
EventHandler ml = event -> {
// RT-15127: cancel editing on scroll. This is a bit extreme
// (we are cancelling editing on touching the scrollbars).
// This can be improved at a later date.
if (control.getEditingCell() != null) {
control.edit(-1, null);
}
// This ensures that the table maintains the focus, even when the vbar
// and hbar controls inside the flow are clicked. Without this, the
// focus border will not be shown when the user interacts with the
// scrollbars, and more importantly, keyboard navigation won't be
// available to the user.
if (control.isFocusTraversable()) {
control.requestFocus();
}
};
flow.getVbar().addEventFilter(MouseEvent.MOUSE_PRESSED, ml);
flow.getHbar().addEventFilter(MouseEvent.MOUSE_PRESSED, ml);
// init the behavior 'closures'
behavior.setOnFocusPreviousRow(() -> onFocusAboveCell());
behavior.setOnFocusNextRow(() -> onFocusBelowCell());
behavior.setOnMoveToFirstCell(() -> onMoveToFirstCell());
behavior.setOnMoveToLastCell(() -> onMoveToLastCell());
behavior.setOnScrollPageDown(isFocusDriven -> onScrollPageDown(isFocusDriven));
behavior.setOnScrollPageUp(isFocusDriven -> onScrollPageUp(isFocusDriven));
behavior.setOnSelectPreviousRow(() -> onSelectAboveCell());
behavior.setOnSelectNextRow(() -> onSelectBelowCell());
behavior.setOnSelectLeftCell(() -> onSelectLeftCell());
behavior.setOnSelectRightCell(() -> onSelectRightCell());
behavior.setOnFocusLeftCell(() -> onFocusLeftCell());
behavior.setOnFocusRightCell(() -> onFocusRightCell());
registerChangeListener(control.fixedCellSizeProperty(), e -> flow.setFixedCellSize(getSkinnable().getFixedCellSize()));
}
/***************************************************************************
* *
* Public API *
* *
**************************************************************************/
/** {@inheritDoc} */
@Override public void dispose() {
super.dispose();
if (behavior != null) {
behavior.dispose();
}
}
/** {@inheritDoc} */
@Override public Object queryAccessibleAttribute(AccessibleAttribute attribute, Object... parameters) {
switch (attribute) {
case SELECTED_ITEMS: {
List selection = new ArrayList<>();
TableViewSelectionModel sm = getSkinnable().getSelectionModel();
for (TablePosition pos : sm.getSelectedCells()) {
TableRow row = flow.getPrivateCell(pos.getRow());
if (row != null) selection.add(row);
}
return FXCollections.observableArrayList(selection);
}
default: return super.queryAccessibleAttribute(attribute, parameters);
}
}
/** {@inheritDoc} */
@Override protected void executeAccessibleAction(AccessibleAction action, Object... parameters) {
switch (action) {
case SHOW_ITEM: {
Node item = (Node)parameters[0];
if (item instanceof TableCell) {
@SuppressWarnings("unchecked")
TableCell cell = (TableCell)item;
flow.scrollTo(cell.getIndex());
}
break;
}
case SET_SELECTED_ITEMS: {
@SuppressWarnings("unchecked")
ObservableList items = (ObservableList)parameters[0];
if (items != null) {
TableSelectionModel sm = getSkinnable().getSelectionModel();
if (sm != null) {
sm.clearSelection();
for (Node item : items) {
if (item instanceof TableCell) {
@SuppressWarnings("unchecked")
TableCell cell = (TableCell)item;
sm.select(cell.getIndex(), cell.getTableColumn());
}
}
}
}
break;
}
default: super.executeAccessibleAction(action, parameters);
}
}
/***************************************************************************
* *
* Private methods *
* *
**************************************************************************/
/** {@inheritDoc} */
private TableRow createCell() {
TableRow cell;
TableView tableView = getSkinnable();
if (tableView.getRowFactory() != null) {
cell = tableView.getRowFactory().call(tableView);
} else {
cell = new TableRow();
}
cell.updateTableView(tableView);
return cell;
}
/** {@inheritDoc} */
@Override protected int getItemCount() {
TableView tableView = getSkinnable();
return tableView.getItems() == null ? 0 : tableView.getItems().size();
}
/** {@inheritDoc} */
@Override void horizontalScroll() {
super.horizontalScroll();
if (getSkinnable().getFixedCellSize() > 0) {
flow.requestCellLayout();
}
}
}
