2001 if (type == null) return false;
2002
2003 return isInstanceOf(obj.getClass(), type);
2004 }
2005
2006 private static boolean isInstanceOf(Class<?> cls, String type) {
2007 if (cls == null) return false;
2008
2009 if (cls.getName().equals(type)) {
2010 return true;
2011 }
2012
2013 for (Class<?> c : cls.getInterfaces()) {
2014 if (c.getName().equals(type)) {
2015 return true;
2016 }
2017 }
2018 return isInstanceOf(cls.getSuperclass(), type);
2019 }
2020
2021 ///////////////////////////////////////////////////////////////////////////
2022 //
2023 // The following methods help set and identify whether a particular
2024 // AWTEvent object was produced by the system or by user code. As of this
2025 // writing the only consumer is the Java Plug-In, although this information
2026 // could be useful to more clients and probably should be formalized in
2027 // the public API.
2028 //
2029 ///////////////////////////////////////////////////////////////////////////
2030
2031 public static void setSystemGenerated(AWTEvent e) {
2032 AWTAccessor.getAWTEventAccessor().setSystemGenerated(e);
2033 }
2034
2035 public static boolean isSystemGenerated(AWTEvent e) {
2036 return AWTAccessor.getAWTEventAccessor().isSystemGenerated(e);
2037 }
2038
2039 } // class SunToolkit
2040
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2001 if (type == null) return false;
2002
2003 return isInstanceOf(obj.getClass(), type);
2004 }
2005
2006 private static boolean isInstanceOf(Class<?> cls, String type) {
2007 if (cls == null) return false;
2008
2009 if (cls.getName().equals(type)) {
2010 return true;
2011 }
2012
2013 for (Class<?> c : cls.getInterfaces()) {
2014 if (c.getName().equals(type)) {
2015 return true;
2016 }
2017 }
2018 return isInstanceOf(cls.getSuperclass(), type);
2019 }
2020
2021 protected static LightweightFrame getLightweightFrame(Component c) {
2022 for (; c != null; c = c.getParent()) {
2023 if (c instanceof LightweightFrame) {
2024 return (LightweightFrame)c;
2025 }
2026 if (c instanceof Window) {
2027 // Don't traverse owner windows
2028 return null;
2029 }
2030 }
2031 return null;
2032 }
2033
2034 ///////////////////////////////////////////////////////////////////////////
2035 //
2036 // The following methods help set and identify whether a particular
2037 // AWTEvent object was produced by the system or by user code. As of this
2038 // writing the only consumer is the Java Plug-In, although this information
2039 // could be useful to more clients and probably should be formalized in
2040 // the public API.
2041 //
2042 ///////////////////////////////////////////////////////////////////////////
2043
2044 public static void setSystemGenerated(AWTEvent e) {
2045 AWTAccessor.getAWTEventAccessor().setSystemGenerated(e);
2046 }
2047
2048 public static boolean isSystemGenerated(AWTEvent e) {
2049 return AWTAccessor.getAWTEventAccessor().isSystemGenerated(e);
2050 }
2051
2052 } // class SunToolkit
2053
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