/* * Copyright (c) 2014, 2016, 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 com.sun.javafx.scene.ParentHelper; import com.sun.javafx.scene.control.behavior.BehaviorBase; import com.sun.javafx.scene.traversal.Algorithm; import com.sun.javafx.scene.control.FakeFocusTextField; import com.sun.javafx.scene.traversal.Direction; import com.sun.javafx.scene.traversal.ParentTraversalEngine; import javafx.scene.control.Accordion; import javafx.scene.control.Button; import javafx.scene.control.Control; import javafx.scene.control.SkinBase; import com.sun.javafx.scene.control.behavior.SpinnerBehavior; import com.sun.javafx.scene.traversal.TraversalContext; import javafx.collections.ListChangeListener; import javafx.css.PseudoClass; import javafx.geometry.HPos; import javafx.geometry.VPos; import javafx.scene.AccessibleAction; import javafx.scene.AccessibleRole; import javafx.scene.Node; import javafx.scene.control.Spinner; import javafx.scene.control.TextField; import javafx.scene.input.KeyCode; import javafx.scene.input.KeyEvent; import javafx.scene.layout.Region; import javafx.scene.layout.StackPane; import java.util.List; /** * Default skin implementation for the {@link Spinner} control. * * @see Spinner * @since 9 */ public class SpinnerSkin extends SkinBase> { /*************************************************************************** * * * Private fields * * * **************************************************************************/ private TextField textField; private Region incrementArrow; private StackPane incrementArrowButton; private Region decrementArrow; private StackPane decrementArrowButton; // rather than create an private enum, lets just use an int, here's the important details: private static final int ARROWS_ON_RIGHT_VERTICAL = 0; private static final int ARROWS_ON_LEFT_VERTICAL = 1; private static final int ARROWS_ON_RIGHT_HORIZONTAL = 2; private static final int ARROWS_ON_LEFT_HORIZONTAL = 3; private static final int SPLIT_ARROWS_VERTICAL = 4; private static final int SPLIT_ARROWS_HORIZONTAL = 5; private int layoutMode = 0; private final SpinnerBehavior behavior; /*************************************************************************** * * * Constructors * * * **************************************************************************/ /** * Creates a new SpinnerSkin 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 SpinnerSkin(Spinner control) { super(control); // install default input map for the Button control behavior = new SpinnerBehavior<>(control); // control.setInputMap(behavior.getInputMap()); textField = control.getEditor(); getChildren().add(textField); updateStyleClass(); control.getStyleClass().addListener((ListChangeListener) c -> updateStyleClass()); // increment / decrement arrows incrementArrow = new Region(); incrementArrow.setFocusTraversable(false); incrementArrow.getStyleClass().setAll("increment-arrow"); incrementArrow.setMaxWidth(Region.USE_PREF_SIZE); incrementArrow.setMaxHeight(Region.USE_PREF_SIZE); incrementArrow.setMouseTransparent(true); incrementArrowButton = new StackPane() { public void executeAccessibleAction(AccessibleAction action, Object... parameters) { switch (action) { case FIRE: getSkinnable().increment(); break; default: super.executeAccessibleAction(action, parameters); } } }; incrementArrowButton.setAccessibleRole(AccessibleRole.INCREMENT_BUTTON); incrementArrowButton.setFocusTraversable(false); incrementArrowButton.getStyleClass().setAll("increment-arrow-button"); incrementArrowButton.getChildren().add(incrementArrow); incrementArrowButton.setOnMousePressed(e -> { getSkinnable().requestFocus(); behavior.startSpinning(true); }); incrementArrowButton.setOnMouseReleased(e -> behavior.stopSpinning()); decrementArrow = new Region(); decrementArrow.setFocusTraversable(false); decrementArrow.getStyleClass().setAll("decrement-arrow"); decrementArrow.setMaxWidth(Region.USE_PREF_SIZE); decrementArrow.setMaxHeight(Region.USE_PREF_SIZE); decrementArrow.setMouseTransparent(true); decrementArrowButton = new StackPane() { public void executeAccessibleAction(AccessibleAction action, Object... parameters) { switch (action) { case FIRE: getSkinnable().decrement(); break; default: super.executeAccessibleAction(action, parameters); } } }; decrementArrowButton.setAccessibleRole(AccessibleRole.DECREMENT_BUTTON); decrementArrowButton.setFocusTraversable(false); decrementArrowButton.getStyleClass().setAll("decrement-arrow-button"); decrementArrowButton.getChildren().add(decrementArrow); decrementArrowButton.setOnMousePressed(e -> { getSkinnable().requestFocus(); behavior.startSpinning(false); }); decrementArrowButton.setOnMouseReleased(e -> behavior.stopSpinning()); getChildren().addAll(incrementArrowButton, decrementArrowButton); // Fixes in the same vein as ComboBoxListViewSkin // move fake focus in to the textfield if the spinner is editable control.focusedProperty().addListener((ov, t, hasFocus) -> { // Fix for the regression noted in a comment in RT-29885. ((FakeFocusTextField)textField).setFakeFocus(hasFocus); }); control.addEventFilter(KeyEvent.ANY, ke -> { if (control.isEditable()) { // This prevents a stack overflow from our rebroadcasting of the // event to the textfield that occurs in the final else statement // of the conditions below. if (ke.getTarget().equals(textField)) return; // Fix for RT-38527 which led to a stack overflow if (ke.getCode() == KeyCode.ESCAPE) return; // Fix for the regression noted in a comment in RT-29885. // This forwards the event down into the TextField when // the key event is actually received by the Spinner. textField.fireEvent(ke.copyFor(textField, textField)); ke.consume(); } }); // This event filter is to enable keyboard events being delivered to the // spinner when the user has mouse clicked into the TextField area of the // Spinner control. Without this the up/down/left/right arrow keys don't // work when you click inside the TextField area (but they do in the case // of tabbing in). textField.addEventFilter(KeyEvent.ANY, ke -> { if (! control.isEditable()) { control.fireEvent(ke.copyFor(control, control)); ke.consume(); } }); textField.focusedProperty().addListener((ov, t, hasFocus) -> { // Fix for RT-29885 control.getProperties().put("FOCUSED", hasFocus); // --- end of RT-29885 // RT-21454 starts here if (! hasFocus) { pseudoClassStateChanged(CONTAINS_FOCUS_PSEUDOCLASS_STATE, false); } else { pseudoClassStateChanged(CONTAINS_FOCUS_PSEUDOCLASS_STATE, true); } // --- end of RT-21454 }); // end of comboBox-esque fixes textField.focusTraversableProperty().bind(control.editableProperty()); // Following code borrowed from ComboBoxPopupControl, to resolve the // issue initially identified in RT-36902, but specifically (for Spinner) // identified in RT-40625 ParentHelper.setTraversalEngine(control, new ParentTraversalEngine(control, new Algorithm() { @Override public Node select(Node owner, Direction dir, TraversalContext context) { return null; } @Override public Node selectFirst(TraversalContext context) { return null; } @Override public Node selectLast(TraversalContext context) { return null; } })); } /*************************************************************************** * * * Public API * * * **************************************************************************/ /** {@inheritDoc} */ @Override public void dispose() { super.dispose(); if (behavior != null) { behavior.dispose(); } } /** {@inheritDoc} */ @Override protected void layoutChildren(final double x, final double y, final double w, final double h) { final double incrementArrowButtonWidth = incrementArrowButton.snappedLeftInset() + snapSizeX(incrementArrow.prefWidth(-1)) + incrementArrowButton.snappedRightInset(); final double decrementArrowButtonWidth = decrementArrowButton.snappedLeftInset() + snapSizeX(decrementArrow.prefWidth(-1)) + decrementArrowButton.snappedRightInset(); final double widestArrowButton = Math.max(incrementArrowButtonWidth, decrementArrowButtonWidth); // we need to decide on our layout approach, and this depends on // the presence of style classes in the Spinner styleClass list. // To be a bit more efficient, we observe the list for changes, so // here in layoutChildren we can just react to a few booleans. if (layoutMode == ARROWS_ON_RIGHT_VERTICAL || layoutMode == ARROWS_ON_LEFT_VERTICAL) { final double textFieldStartX = layoutMode == ARROWS_ON_RIGHT_VERTICAL ? x : x + widestArrowButton; final double buttonStartX = layoutMode == ARROWS_ON_RIGHT_VERTICAL ? x + w - widestArrowButton : x; final double halfHeight = Math.floor(h / 2.0); textField.resizeRelocate(textFieldStartX, y, w - widestArrowButton, h); incrementArrowButton.resize(widestArrowButton, halfHeight); positionInArea(incrementArrowButton, buttonStartX, y, widestArrowButton, halfHeight, 0, HPos.CENTER, VPos.CENTER); decrementArrowButton.resize(widestArrowButton, halfHeight); positionInArea(decrementArrowButton, buttonStartX, y + halfHeight, widestArrowButton, h - halfHeight, 0, HPos.CENTER, VPos.BOTTOM); } else if (layoutMode == ARROWS_ON_RIGHT_HORIZONTAL || layoutMode == ARROWS_ON_LEFT_HORIZONTAL) { final double totalButtonWidth = incrementArrowButtonWidth + decrementArrowButtonWidth; final double textFieldStartX = layoutMode == ARROWS_ON_RIGHT_HORIZONTAL ? x : x + totalButtonWidth; final double buttonStartX = layoutMode == ARROWS_ON_RIGHT_HORIZONTAL ? x + w - totalButtonWidth : x; textField.resizeRelocate(textFieldStartX, y, w - totalButtonWidth, h); // decrement is always on the left decrementArrowButton.resize(decrementArrowButtonWidth, h); positionInArea(decrementArrowButton, buttonStartX, y, decrementArrowButtonWidth, h, 0, HPos.CENTER, VPos.CENTER); // ... and increment is always on the right incrementArrowButton.resize(incrementArrowButtonWidth, h); positionInArea(incrementArrowButton, buttonStartX + decrementArrowButtonWidth, y, incrementArrowButtonWidth, h, 0, HPos.CENTER, VPos.CENTER); } else if (layoutMode == SPLIT_ARROWS_VERTICAL) { final double incrementArrowButtonHeight = incrementArrowButton.snappedTopInset() + snapSizeY(incrementArrow.prefHeight(-1)) + incrementArrowButton.snappedBottomInset(); final double decrementArrowButtonHeight = decrementArrowButton.snappedTopInset() + snapSizeY(decrementArrow.prefHeight(-1)) + decrementArrowButton.snappedBottomInset(); final double tallestArrowButton = Math.max(incrementArrowButtonHeight, decrementArrowButtonHeight); // increment is at the top incrementArrowButton.resize(w, tallestArrowButton); positionInArea(incrementArrowButton, x, y, w, tallestArrowButton, 0, HPos.CENTER, VPos.CENTER); // textfield in the middle textField.resizeRelocate(x, y + tallestArrowButton, w, h - (2*tallestArrowButton)); // decrement is at the bottom decrementArrowButton.resize(w, tallestArrowButton); positionInArea(decrementArrowButton, x, h - tallestArrowButton, w, tallestArrowButton, 0, HPos.CENTER, VPos.CENTER); } else if (layoutMode == SPLIT_ARROWS_HORIZONTAL) { // decrement is on the left-hand side decrementArrowButton.resize(widestArrowButton, h); positionInArea(decrementArrowButton, x, y, widestArrowButton, h, 0, HPos.CENTER, VPos.CENTER); // textfield in the middle textField.resizeRelocate(x + widestArrowButton, y, w - (2*widestArrowButton), h); // increment is on the right-hand side incrementArrowButton.resize(widestArrowButton, h); positionInArea(incrementArrowButton, w - widestArrowButton, y, widestArrowButton, h, 0, HPos.CENTER, VPos.CENTER); } } @Override protected double computeMinWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset) { return textField.minWidth(height); } /** {@inheritDoc} */ @Override protected double computeMinHeight(double width, double topInset, double rightInset, double bottomInset, double leftInset) { return computePrefHeight(width, topInset, rightInset, bottomInset, leftInset); } /** {@inheritDoc} */ @Override protected double computePrefWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset) { final double textfieldWidth = textField.prefWidth(height); return leftInset + textfieldWidth + rightInset; } /** {@inheritDoc} */ @Override protected double computePrefHeight(double width, double topInset, double rightInset, double bottomInset, double leftInset) { double ph; double textFieldHeight = textField.prefHeight(width); if (layoutMode == SPLIT_ARROWS_VERTICAL) { ph = topInset + incrementArrowButton.prefHeight(width) + textFieldHeight + decrementArrowButton.prefHeight(width) + bottomInset; } else { ph = topInset + textFieldHeight + bottomInset; } return ph; } /** {@inheritDoc} */ @Override protected double computeMaxWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset) { return getSkinnable().prefWidth(height); } /** {@inheritDoc} */ @Override protected double computeMaxHeight(double width, double topInset, double rightInset, double bottomInset, double leftInset) { return getSkinnable().prefHeight(width); } // Overridden so that we use the textfield as the baseline, rather than the arrow. // See RT-30754 for more information. /** {@inheritDoc} */ @Override protected double computeBaselineOffset(double topInset, double rightInset, double bottomInset, double leftInset) { return textField.getLayoutBounds().getMinY() + textField.getLayoutY() + textField.getBaselineOffset(); } /*************************************************************************** * * * Private implementation * * * **************************************************************************/ private void updateStyleClass() { final List styleClass = getSkinnable().getStyleClass(); if (styleClass.contains(Spinner.STYLE_CLASS_ARROWS_ON_LEFT_VERTICAL)) { layoutMode = ARROWS_ON_LEFT_VERTICAL; } else if (styleClass.contains(Spinner.STYLE_CLASS_ARROWS_ON_LEFT_HORIZONTAL)) { layoutMode = ARROWS_ON_LEFT_HORIZONTAL; } else if (styleClass.contains(Spinner.STYLE_CLASS_ARROWS_ON_RIGHT_HORIZONTAL)) { layoutMode = ARROWS_ON_RIGHT_HORIZONTAL; } else if (styleClass.contains(Spinner.STYLE_CLASS_SPLIT_ARROWS_VERTICAL)) { layoutMode = SPLIT_ARROWS_VERTICAL; } else if (styleClass.contains(Spinner.STYLE_CLASS_SPLIT_ARROWS_HORIZONTAL)) { layoutMode = SPLIT_ARROWS_HORIZONTAL; } else { layoutMode = ARROWS_ON_RIGHT_VERTICAL; } } /*************************************************************************** * * * Stylesheet Handling * * * **************************************************************************/ private static PseudoClass CONTAINS_FOCUS_PSEUDOCLASS_STATE = PseudoClass.getPseudoClass("contains-focus"); }