Bug 521024 - [api] Provide helpers to use lambda expressions for Browser

listeners

Add helper methods.

Change-Id: I373cf73c439b0c68e3c8602bc3a99fcbe3a4338a
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>

6 files changed, 131 insertions, 8 deletions

diff --git a/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/LocationAdapter.java b/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/LocationAdapter.java
index e306d56fbb..89d2f51246 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/LocationAdapter.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/LocationAdapter.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2003, 2016 IBM Corporation and others.
+ * Copyright (c) 2003, 2017 IBM Corporation 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
@@ -18,6 +18,11 @@ package org.eclipse.swt.browser;
  * extend this class and override only the methods which they are
  * interested in.
  * </p>
+ * <p>
+ * An alternative to this class are the static helper methods in
+ * {@link LocationListener},
+ * which accept a lambda expression or a method reference that implements the event consumer.
+ * </p>
  *
  * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
  *
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/LocationListener.java b/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/LocationListener.java
index 348fec171f..3d9591e6e1 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/LocationListener.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/LocationListener.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2003, 2005 IBM Corporation and others.
+ * Copyright (c) 2003, 2017 IBM Corporation 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
@@ -10,7 +10,9 @@
  *******************************************************************************/
 package org.eclipse.swt.browser;
 
-import org.eclipse.swt.internal.SWTEventListener;
+import java.util.function.*;
+
+import org.eclipse.swt.internal.*;
 
 /**
  * This listener interface may be implemented in order to receive
@@ -19,6 +21,7 @@ import org.eclipse.swt.internal.SWTEventListener;
  *
  * @see Browser#addLocationListener(LocationListener)
  * @see Browser#removeLocationListener(LocationListener)
+ * @see LocationAdapter
  *
  * @since 3.0
  */
@@ -62,4 +65,38 @@ public void changing(LocationEvent event);
  */
 public void changed(LocationEvent event);
 
+/**
+ * Static helper method to create a <code>LocationListener</code> for the
+ * {@link #changing(LocationEvent e)}) method, given a lambda expression or a method reference.
+ *
+ * @param c the consumer of the event
+ * @return LocationListener
+ * @since 3.107
+ */
+public static LocationListener changingAdapter(Consumer<LocationEvent> c) {
+	return new LocationAdapter() {
+		@Override
+		public void changing(LocationEvent e) {
+			c.accept(e);
+		}
+	};
+}
+
+/**
+ * Static helper method to create a <code>LocationListener</code> for the
+ * {@link #changed(LocationEvent e)}) method, given a lambda expression or a method reference.
+ *
+ * @param c the consumer of the event
+ * @return LocationListener
+ * @since 3.107
+ */
+public static LocationListener changedAdapter(Consumer<LocationEvent> c) {
+	return new LocationAdapter() {
+		@Override
+		public void changed(LocationEvent e) {
+			c.accept(e);
+		}
+	};
+}
+
 }
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/ProgressAdapter.java b/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/ProgressAdapter.java
index 1cfd6ae678..f770ea0a86 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/ProgressAdapter.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/ProgressAdapter.java
@@ -18,6 +18,11 @@ package org.eclipse.swt.browser;
  * extend this class and override only the methods which they are
  * interested in.
  * </p>
+ * <p>
+ * An alternative to this class are the static helper methods in
+ * {@link ProgressListener},
+ * which accept a lambda expression or a method reference that implements the event consumer.
+ * </p>
  *
  * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
  *
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/ProgressListener.java b/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/ProgressListener.java
index 18615170d5..ec1e75547b 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/ProgressListener.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/ProgressListener.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2003, 2005 IBM Corporation and others.
+ * Copyright (c) 2003, 2017 IBM Corporation 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
@@ -10,7 +10,9 @@
  *******************************************************************************/
 package org.eclipse.swt.browser;
 
-import org.eclipse.swt.internal.SWTEventListener;
+import java.util.function.*;
+
+import org.eclipse.swt.internal.*;
 
 /**
  * This listener interface may be implemented in order to receive
@@ -60,4 +62,38 @@ public void changed(ProgressEvent event);
  * @since 3.0
  */
 public void completed(ProgressEvent event);
+
+/**
+ * Static helper method to create a <code>ProgressListener</code> for the
+ * {@link #changed(ProgressEvent e)}) method, given a lambda expression or a method reference.
+ *
+ * @param c the consumer of the event
+ * @return LocationListener
+ * @since 3.107
+ */
+public static ProgressListener changedAdapter(Consumer<ProgressEvent> c) {
+	return new ProgressAdapter() {
+		@Override
+		public void changed(ProgressEvent e) {
+			c.accept(e);
+		}
+	};
+}
+
+/**
+ * Static helper method to create a <code>ProgressListener</code> for the
+ * {@link #completed(ProgressEvent e)}) method, given a lambda expression or a method reference.
+ *
+ * @param c the consumer of the event
+ * @return LocationListener
+ * @since 3.107
+ */
+public static ProgressListener completedAdapter(Consumer<ProgressEvent> c) {
+	return new ProgressAdapter() {
+		@Override
+		public void completed(ProgressEvent e) {
+			c.accept(e);
+		}
+	};
+}
 }
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/VisibilityWindowAdapter.java b/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/VisibilityWindowAdapter.java
index 7886aca05a..d4e70b32b3 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/VisibilityWindowAdapter.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/VisibilityWindowAdapter.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2003, 2016 IBM Corporation and others.
+ * Copyright (c) 2003, 2017 IBM Corporation 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
@@ -18,6 +18,10 @@ package org.eclipse.swt.browser;
  * extend this class and override only the methods which they are
  * interested in.
  * </p>
+ * An alternative to this class are the static helper methods in
+ * {@link VisibilityWindowListener},
+ * which accept a lambda expression or a method reference that implements the event consumer.
+ * </p>
  *
  * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
  *
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/VisibilityWindowListener.java b/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/VisibilityWindowListener.java
index 711a8c91d6..c9e528d142 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/VisibilityWindowListener.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT Browser/common/org/eclipse/swt/browser/VisibilityWindowListener.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2003, 2007 IBM Corporation and others.
+ * Copyright (c) 2003, 2017 IBM Corporation 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
@@ -10,7 +10,9 @@
  *******************************************************************************/
 package org.eclipse.swt.browser;
 
-import org.eclipse.swt.internal.SWTEventListener;
+import java.util.function.*;
+
+import org.eclipse.swt.internal.*;
 
 /**
  * This listener interface may be implemented in order to receive
@@ -88,4 +90,38 @@ public void hide(WindowEvent event);
  */
 public void show(WindowEvent event);
 
+/**
+ * Static helper method to create a <code>VisibilityWindowListener</code> for thehide
+ * {@link #hide(WindowEvent e)}) method, given a lambda expression or a method reference.
+ *
+ * @param c the consumer of the event
+ * @return LocationListener
+ * @since 3.107
+ */
+public static VisibilityWindowListener hideAdapter(Consumer<WindowEvent> c) {
+	return new VisibilityWindowAdapter() {
+		@Override
+		public void hide(WindowEvent e) {
+			c.accept(e);
+		}
+	};
+}
+
+/**
+ * Static helper method to create a <code>VisibilityWindowListener</code> for the
+ * {@link #show(WindowEvent e)}) method, given a lambda expression or a method reference.
+ *
+ * @param c the consumer of the event
+ * @return LocationListener
+ * @since 3.107
+ */
+public static VisibilityWindowListener showAdapter(Consumer<WindowEvent> c) {
+	return new VisibilityWindowAdapter() {
+		@Override
+		public void show(WindowEvent e) {
+			c.accept(e);
+		}
+	};
+}
+
 }