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[cp-patches] FYI: javax.swing.JComponent fixlet
From: |
Roman Kennke |
Subject: |
[cp-patches] FYI: javax.swing.JComponent fixlet |
Date: |
Wed, 18 May 2005 10:20:04 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20021204 |
Hi,
I made JComponent requestFocusEnabled by default and added the method
requestFocusInWindow()
2005-05-18 Roman Kennke <address@hidden>
* javax/swing/JComponent
(constructor): Make component requestFocusEnabled by default.
(requestFocusInWindow): Added method.
/Roman
Index: javax/swing/JComponent.java
===================================================================
RCS file: /cvsroot/classpath/classpath/javax/swing/JComponent.java,v
retrieving revision 1.38
retrieving revision 1.39
diff -u -r1.38 -r1.39
--- javax/swing/JComponent.java 15 May 2005 09:49:20 -0000 1.38
+++ javax/swing/JComponent.java 18 May 2005 08:18:09 -0000 1.39
@@ -400,6 +400,7 @@
setDropTarget(new DropTarget());
defaultLocale = Locale.getDefault();
debugGraphicsOptions = DebugGraphics.NONE_OPTION;
+ setRequestFocusEnabled(true);
}
/**
@@ -2324,6 +2325,33 @@
}
/**
+ * Requests that this component gets the input focus if the top level
+ * window that contains this component has the focus and the
+ * requestFocusEnabled property is set to <code>true</code>.
+ *
+ * The preconditions that have to be met to become a focus owner is that
+ * the component must be displayable, visible and focusable.
+ *
+ * Note that this signals only a request for becoming focused. There are
+ * situations in which it is not possible to get the focus. So developers
+ * should not assume that the component has the focus until it receives
+ * a address@hidden java.awt.event.FocusEvent} with a value of
+ * address@hidden java.awt.event.FocusEvent.FOCUS_GAINED}.
+ *
+ * @return <code>false</code> if the focus change request will definitly
+ * fail, <code>true</code> if it will likely succeed
+ *
+ * @see address@hidden Component#requestFocusInWindow()}
+ */
+ public boolean requestFocusInWindow()
+ {
+ if (isRequestFocusEnabled())
+ return super.requestFocusInWindow();
+ else
+ return false;
+ }
+
+ /**
* This method is overridden to make it public so that it can be used
* by look and feel implementations.
*
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