From f66e89662c091e082bd1d2feb6ac91513ccff273 Mon Sep 17 00:00:00 2001
From: Rafael Cavazin <rafaelcavazin@gmail.com>
Date: Sun, 21 Jul 2013 09:59:00 -0400
Subject: [PATCH] Merge branch 'master' of https://github.com/gitblit/gitblit
---
src/main/java/com/gitblit/authority/RequestFocusListener.java | 80 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 80 insertions(+), 0 deletions(-)
diff --git a/src/main/java/com/gitblit/authority/RequestFocusListener.java b/src/main/java/com/gitblit/authority/RequestFocusListener.java
new file mode 100644
index 0000000..82eba6a
--- /dev/null
+++ b/src/main/java/com/gitblit/authority/RequestFocusListener.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2012 gitblit.com.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.gitblit.authority;
+import javax.swing.JComponent;
+import javax.swing.event.AncestorEvent;
+import javax.swing.event.AncestorListener;
+
+/**
+ * Convenience class to request focus on a component.
+ *
+ * When the component is added to a realized Window then component will
+ * request focus immediately, since the ancestorAdded event is fired
+ * immediately.
+ *
+ * When the component is added to a non realized Window, then the focus
+ * request will be made once the window is realized, since the
+ * ancestorAdded event will not be fired until then.
+ *
+ * Using the default constructor will cause the listener to be removed
+ * from the component once the AncestorEvent is generated. A second constructor
+ * allows you to specify a boolean value of false to prevent the
+ * AncestorListener from being removed when the event is generated. This will
+ * allow you to reuse the listener each time the event is generated.
+ *
+ * @author Rob Camick
+ */
+public class RequestFocusListener implements AncestorListener
+{
+ private boolean removeListener;
+
+ /*
+ * Convenience constructor. The listener is only used once and then it is
+ * removed from the component.
+ */
+ public RequestFocusListener()
+ {
+ this(true);
+ }
+
+ /*
+ * Constructor that controls whether this listen can be used once or
+ * multiple times.
+ *
+ * @param removeListener when true this listener is only invoked once
+ * otherwise it can be invoked multiple times.
+ */
+ public RequestFocusListener(boolean removeListener)
+ {
+ this.removeListener = removeListener;
+ }
+
+ @Override
+ public void ancestorAdded(AncestorEvent e)
+ {
+ JComponent component = e.getComponent();
+ component.requestFocusInWindow();
+
+ if (removeListener)
+ component.removeAncestorListener( this );
+ }
+
+ @Override
+ public void ancestorMoved(AncestorEvent e) {}
+
+ @Override
+ public void ancestorRemoved(AncestorEvent e) {}
+}
--
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