Bug 510736 - Add set of utilities to single-source for JavaFX8 and JavaFX9
diff --git a/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/JavaFXCompatUtil.java b/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/JavaFXCompatUtil.java
new file mode 100644
index 0000000..5917bba
--- /dev/null
+++ b/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/JavaFXCompatUtil.java
@@ -0,0 +1,141 @@
+/*******************************************************************************
+ * Copyright (c) 2017 BestSolution.at and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Tom Schindl<tom.schindl@bestsolution.at> - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.fx.ui.controls;
+
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+
+import org.eclipse.fx.core.SystemUtils;
+import org.eclipse.fx.core.log.LoggerCreator;
+
+import javafx.scene.Node;
+import javafx.scene.input.KeyCode;
+import javafx.stage.Window;
+
+/**
+ * Set of utility allowing to access none public JavaFX APIs for different
+ * JavaFX versions.
+ *
+ * Historically JavaFX-2/8 had public methods prefixed with <code>impl_</code>
+ * who get replaced with property API in JavaFX-9 and some of them got removed
+ * or made internal.
+ *
+ * @since 3.0
+ */
+public class JavaFXCompatUtil {
+ /**
+ * @return current list of JavaFX windows shown
+ */
+ @SuppressWarnings("unchecked")
+ public static List<Window> getAllWindows() {
+ try {
+ if (SystemUtils.isFX9()) {
+ // ObservableList<Window> windows = Window.getWindows();
+ return ((List<Window>) Window.class.getMethod("getWindows").invoke(null)); //$NON-NLS-1$
+ } else {
+ // impl_getWindows = Window.impl_getWindows();
+ Iterator<Window> it = (Iterator<Window>) Window.class.getMethod("impl_getWindows").invoke(null); //$NON-NLS-1$
+ List<Window> rv = new ArrayList<>();
+ while (it.hasNext()) {
+ rv.add(it.next());
+ }
+ return Collections.unmodifiableList(rv);
+ }
+ } catch (Throwable t) {
+ throw new RuntimeException(t);
+ }
+ }
+
+ /**
+ * Returns the underlying platform code used to represent the
+ * {@link #getChar(KeyCode) character} in the key code.
+ *
+ * @param keyCode
+ * the key code instance
+ * @return the keycode
+ */
+ public static int getCode(KeyCode keyCode) {
+ if (SystemUtils.isFX9()) {
+ try {
+ return ((Integer) KeyCode.class.getMethod("getCode").invoke(keyCode)).intValue(); //$NON-NLS-1$
+ } catch (Throwable t) {
+ LoggerCreator.createLogger(JavaFXCompatUtil.class).error("Unable to call KeyCode#getCode()", t); //$NON-NLS-1$
+ throw new RuntimeException(t);
+ }
+ } else {
+ try {
+ return ((Integer) KeyCode.class.getMethod("impl_getCode").invoke(keyCode)).intValue(); //$NON-NLS-1$
+ } catch (Throwable t) {
+ LoggerCreator.createLogger(JavaFXCompatUtil.class).error("Unable to call KeyCode#impl_getCode()", t); //$NON-NLS-1$
+ throw new RuntimeException(t);
+ }
+ }
+
+ }
+
+ /**
+ * Returns the character element of this key code, which is simply a mapping
+ * of the underlying platform code returned by {@link #getCode(KeyCode)}.
+ *
+ * @param keyCode
+ * the keycode
+ * @return the character
+ */
+ public static String getChar(KeyCode keyCode) {
+ if (SystemUtils.isFX9()) {
+ try {
+ return (String) KeyCode.class.getMethod("getChar").invoke(keyCode); //$NON-NLS-1$
+ } catch (Throwable t) {
+ LoggerCreator.createLogger(JavaFXCompatUtil.class).error("Unable to call KeyCode#getChar()", t); //$NON-NLS-1$
+ throw new RuntimeException(t);
+ }
+ } else {
+ try {
+ return (String) KeyCode.class.getMethod("impl_getChar").invoke(keyCode); //$NON-NLS-1$
+ } catch (Throwable t) {
+ LoggerCreator.createLogger(JavaFXCompatUtil.class).error("Unable to call KeyCode#impl_getChar()", t); //$NON-NLS-1$
+ throw new RuntimeException(t);
+ }
+ }
+
+ }
+
+ /**
+ * Force reapplying the CSS on the provided node
+ *
+ * @param node
+ * the node
+ */
+ public static void reapplyCSS(Node node) {
+ if (SystemUtils.isFX9()) {
+ try {
+ Method m = Node.class.getDeclaredMethod("reapplyCSS"); //$NON-NLS-1$
+ m.setAccessible(true);
+ m.invoke(node);
+ } catch (Throwable t) {
+ LoggerCreator.createLogger(JavaFXCompatUtil.class).error("Unable to call Node#reapplyCSS()", t); //$NON-NLS-1$
+ throw new RuntimeException(t);
+ }
+
+ } else {
+ try {
+ Method m = Node.class.getDeclaredMethod("impl_reapplyCSS"); //$NON-NLS-1$
+ m.invoke(node);
+ } catch (Throwable t) {
+ LoggerCreator.createLogger(JavaFXCompatUtil.class).error("Unable to call Node#impl_reapplyCSS()", t); //$NON-NLS-1$
+ throw new RuntimeException(t);
+ }
+ }
+ }
+}
