diff options
Diffstat (limited to 'src/share/classes/sun/awt/SunToolkit.java')
| -rw-r--r-- | src/share/classes/sun/awt/SunToolkit.java | 178 |
1 files changed, 66 insertions, 112 deletions
diff --git a/src/share/classes/sun/awt/SunToolkit.java b/src/share/classes/sun/awt/SunToolkit.java index fb554ef78..7f0ac590f 100644 --- a/src/share/classes/sun/awt/SunToolkit.java +++ b/src/share/classes/sun/awt/SunToolkit.java @@ -77,14 +77,7 @@ public abstract class SunToolkit extends Toolkit */ 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 @@ public abstract class SunToolkit extends Toolkit 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 @@ public abstract class SunToolkit extends Toolkit * 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 abstract class SunToolkit extends Toolkit */ 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 @@ public abstract class SunToolkit extends Toolkit * 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 @@ public abstract class SunToolkit extends Toolkit } /* - * 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 @@ public abstract class SunToolkit extends Toolkit 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 @@ public abstract class SunToolkit extends Toolkit 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 abstract class SunToolkit extends Toolkit */ 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 abstract class SunToolkit extends Toolkit */ 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 abstract class SunToolkit extends Toolkit 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 |