--- a/jdk/src/share/classes/sun/awt/SunToolkit.java Fri Jun 19 16:49:50 2009 -0400
+++ b/jdk/src/share/classes/sun/awt/SunToolkit.java Tue Jun 23 13:35:58 2009 +0400
@@ -77,14 +77,7 @@
*/
public static final int GRAB_EVENT_MASK = 0x80000000;
- private static Field syncLWRequestsField;
private static Method wakeupMethod;
- private static Field componentKeyField;
- private static Field menuComponentKeyField;
- private static Field trayIconKeyField;
- private static Field componentAppContextField;
- private static Field menuComponentAppContextField;
- private static Field isPostedField;
/* The key to put()/get() the PostEventQueue into/from the AppContext.
*/
private static final String POST_EVENT_QUEUE_KEY = "PostEventQueue";
@@ -422,32 +415,21 @@
private static final Map appContextMap =
Collections.synchronizedMap(new WeakHashMap());
-
/**
* Sets the appContext field of target. If target is not a Component or
* MenuComponent, this returns false.
*/
- private static boolean setAppContext(Object target, AppContext context)
- {
- if (!(target instanceof Component) && !(target instanceof MenuComponent)) {
+ private static boolean setAppContext(Object target,
+ AppContext context) {
+ if (target instanceof Component) {
+ AWTAccessor.getComponentAccessor().
+ setAppContext((Component)target, context);
+ } else if (target instanceof MenuComponent) {
+ AWTAccessor.getMenuComponentAccessor().
+ setAppContext((MenuComponent)target, context);
+ } else {
return false;
}
- try{
- if (target instanceof Component){
- if (componentAppContextField == null) {
- componentAppContextField = getField(Component.class, "appContext");
- }
- componentAppContextField.set(target, context);
- } else if (target instanceof MenuComponent) {
- if (menuComponentAppContextField == null) {
- menuComponentAppContextField = getField(MenuComponent.class, "appContext");
- }
- menuComponentAppContextField.set(target, context);
- }
- } catch( IllegalAccessException e){
- assert false;
- }
-
return true;
}
@@ -456,23 +438,15 @@
* Component or MenuComponent this returns null.
*/
private static AppContext getAppContext(Object target) {
- AppContext retObj = null;
- try{
- if (target instanceof Component){
- if (componentAppContextField == null) {
- componentAppContextField = getField(Component.class, "appContext");
- }
- retObj = (AppContext) componentAppContextField.get(target);
- } else if (target instanceof MenuComponent) {
- if (menuComponentAppContextField == null) {
- menuComponentAppContextField = getField(MenuComponent.class, "appContext");
- }
- retObj = (AppContext) menuComponentAppContextField.get(target);
- }
- } catch( IllegalAccessException e){
- assert false;
+ if (target instanceof Component) {
+ return AWTAccessor.getComponentAccessor().
+ getAppContext((Component)target);
+ } else if (target instanceof MenuComponent) {
+ return AWTAccessor.getMenuComponentAccessor().
+ getAppContext((MenuComponent)target);
+ } else {
+ return null;
}
- return retObj;
}
/*
@@ -520,16 +494,7 @@
*/
public static void setLWRequestStatus(Window changed,boolean status){
- if (syncLWRequestsField == null){
- syncLWRequestsField = getField(Window.class, "syncLWRequests");
- }
- try{
- if (syncLWRequestsField != null){
- syncLWRequestsField.setBoolean(changed, status);
- }
- } catch( IllegalAccessException e){
- assert false;
- }
+ AWTAccessor.getWindowAccessor().setLWRequestStatus(changed, status);
};
public static void checkAndSetPolicy(Container cont, boolean isSwingCont)
@@ -637,18 +602,9 @@
* Post AWTEvent of high priority.
*/
public static void postPriorityEvent(final AWTEvent e) {
- if (isPostedField == null) {
- isPostedField = getField(AWTEvent.class, "isPosted");
- }
PeerEvent pe = new PeerEvent(Toolkit.getDefaultToolkit(), new Runnable() {
public void run() {
- try {
- isPostedField.setBoolean(e, true);
- } catch (IllegalArgumentException e) {
- assert(false);
- } catch (IllegalAccessException e) {
- assert(false);
- }
+ AWTAccessor.getAWTEventAccessor().setPosted(e);
((Component)e.getSource()).dispatchEvent(e);
}
}, PeerEvent.ULTIMATE_PRIORITY_EVENT);
@@ -757,36 +713,6 @@
}
/*
- * Returns next queue for the given EventQueue which has private access
- */
- private static EventQueue getNextQueue(final Object o) {
- EventQueue result = null;
- try{
- Field nextQueueField = getField(EventQueue.class,
- "nextQueue");
- result = (EventQueue)nextQueueField.get(o);
- } catch( IllegalAccessException e){
- assert false;
- }
- return result;
- }
-
- /*
- * Returns dispatch thread for the given EventQueue which has private access
- */
- private static Thread getDispatchThread(final Object o) {
- Thread result = null;
- try{
- Field dispatchThreadField = getField(EventQueue.class,
- "dispatchThread");
- result = (Thread)dispatchThreadField.get(o);
- } catch( IllegalAccessException e){
- assert false;
- }
- return result;
- }
-
- /*
* Returns true if the calling thread is the event dispatch thread
* contained within AppContext which associated with the given target.
* Use this call to ensure that a given task is being executed
@@ -796,13 +722,14 @@
AppContext appContext = targetToAppContext(target);
EventQueue eq = (EventQueue)appContext.get(AppContext.EVENT_QUEUE_KEY);
- EventQueue next = getNextQueue(eq);
+ AWTAccessor.EventQueueAccessor accessor = AWTAccessor.getEventQueueAccessor();
+ EventQueue next = accessor.getNextQueue(eq);
while (next != null) {
eq = next;
- next = getNextQueue(eq);
+ next = accessor.getNextQueue(eq);
}
- return (Thread.currentThread() == getDispatchThread(eq));
+ return (Thread.currentThread() == accessor.getDispatchThread(eq));
}
public Dimension getScreenSize() {
@@ -1356,22 +1283,7 @@
return false;
}
- private static Dialog.ModalExclusionType DEFAULT_MODAL_EXCLUSION_TYPE;
-
- static {
- DEFAULT_MODAL_EXCLUSION_TYPE = (Dialog.ModalExclusionType)AccessController.doPrivileged(new PrivilegedAction() {
- public Object run() {
- Dialog.ModalExclusionType defaultType = Dialog.ModalExclusionType.NO_EXCLUDE;
- try {
- java.lang.reflect.Field f = Dialog.class.getDeclaredField("DEFAULT_MODAL_EXCLUSION_TYPE");
- f.setAccessible(true);
- defaultType = (Dialog.ModalExclusionType)f.get(null);
- } catch (Exception e) {
- }
- return defaultType;
- }
- });
- }
+ private static Dialog.ModalExclusionType DEFAULT_MODAL_EXCLUSION_TYPE = null;
/**
* Returns whether the XEmbed server feature is requested by
@@ -1430,6 +1342,9 @@
*/
public static void setModalExcluded(Window window)
{
+ if (DEFAULT_MODAL_EXCLUSION_TYPE == null) {
+ DEFAULT_MODAL_EXCLUSION_TYPE = Dialog.ModalExclusionType.APPLICATION_EXCLUDE;
+ }
window.setModalExclusionType(DEFAULT_MODAL_EXCLUSION_TYPE);
}
@@ -1451,6 +1366,9 @@
*/
public static boolean isModalExcluded(Window window)
{
+ if (DEFAULT_MODAL_EXCLUSION_TYPE == null) {
+ DEFAULT_MODAL_EXCLUSION_TYPE = Dialog.ModalExclusionType.APPLICATION_EXCLUDE;
+ }
return window.getModalExclusionType().compareTo(DEFAULT_MODAL_EXCLUSION_TYPE) >= 0;
}
@@ -2104,6 +2022,42 @@
public int getNumberOfButtons(){
return 3;
}
+
+ /**
+ * Checks that the given object implements/extends the given
+ * interface/class.
+ *
+ * Note that using the instanceof operator causes a class to be loaded.
+ * Using this method doesn't load a class and it can be used instead of
+ * the instanceof operator for performance reasons.
+ *
+ * @param obj Object to be checked
+ * @param type The name of the interface/class. Must be
+ * fully-qualified interface/class name.
+ * @return true, if this object implements/extends the given
+ * interface/class, false, otherwise, or if obj or type is null
+ */
+ public static boolean isInstanceOf(Object obj, String type) {
+ if (obj == null) return false;
+ if (type == null) return false;
+
+ return isInstanceOf(obj.getClass(), type);
+ }
+
+ private static boolean isInstanceOf(Class cls, String type) {
+ if (cls == null) return false;
+
+ if (cls.getName().equals(type)) {
+ return true;
+ }
+
+ for (Class c : cls.getInterfaces()) {
+ if (c.getName().equals(type)) {
+ return true;
+ }
+ }
+ return isInstanceOf(cls.getSuperclass(), type);
+ }
} // class SunToolkit