S283 Planetary Science &n…he Search for Life DVD 2/DVD-ROM.iso/install/jre1_3/lib/rt.jar/javax/swing/SystemEventQueueUtilities.class

Java Class File | 1979-12-31 | 4.2 KB | 179 lines

package javax.swing;

import java.applet.Applet;
import java.awt.Component;
import java.awt.Container;
import java.awt.EventQueue;
import java.awt.Window;
import java.util.Map;
import java.util.WeakHashMap;
import sun.awt.AppContext;

class SystemEventQueueUtilities {
   private static final Object classLock = new Object();
   private static final Object rootTableKey = new 1();

   private static Map getRootTable() {
      Object var0 = (Map)AppContext.getAppContext().get(rootTableKey);
      if (var0 == null) {
         Object var1 = rootTableKey;
         synchronized(var1) {
            var0 = (Map)AppContext.getAppContext().get(rootTableKey);
            if (var0 == null) {
               var0 = new WeakHashMap(4);
               AppContext.getAppContext().put(rootTableKey, var0);
            }
         }
      }

      return (Map)var0;
   }

   static void queueComponentWorkRequest(Component var0) {
      ComponentWorkRequest var1 = (ComponentWorkRequest)getRootTable().get(var0);
      boolean var2 = var1 == null;
      if (var2) {
         var1 = new ComponentWorkRequest(var0);
      }

      synchronized(var1) {
         if (var2) {
            getRootTable().put(var0, var1);
         }

         if (!var1.isPending) {
            SwingUtilities.invokeLater(var1);
            var1.isPending = true;
         }

      }
   }

   static void addRunnableCanvas(JRootPane var0) {
      Object var1 = classLock;
      synchronized(var1) {
         if (javax.swing.SystemEventQueueUtilities.SystemEventQueue.get(var0) == null) {
            JLayeredPane var2 = var0.getLayeredPane();
            if (var2 != null) {
               RunnableCanvas var3 = new RunnableCanvas(var0);
               ((Container)var2).add(var3);
            }

         }
      }
   }

   static void removeRunnableCanvas(JRootPane var0) {
      Object var1 = classLock;
      synchronized(var1) {
         Object var2 = null;

         for(Object var3 = var0; var3 != null; var3 = ((Component)var3).getParent()) {
            if (var3 instanceof Window || var3 instanceof Applet) {
               var2 = var3;
               break;
            }
         }

         if (var2 != null) {
            getRootTable().remove(var2);
         }

         javax.swing.SystemEventQueueUtilities.RunnableCanvas.remove(var0);
      }
   }

   static Exception postRunnable(Runnable var0, Object var1) {
      EventQueue var2 = javax.swing.SystemEventQueueUtilities.SystemEventQueue.get();
      RunnableEvent var3 = new RunnableEvent(var0, var1);
      if (var2 != null) {
         var2.postEvent(var3);
      } else {
         postRunnableCanvasEvent(var3);
      }

      return var3.exception;
   }

   static void restartTimerQueueThread() {
      Object var0 = classLock;
      synchronized(var0) {
         if (javax.swing.SystemEventQueueUtilities.SystemEventQueue.get() == null) {
            TimerQueueRestart var1 = new TimerQueueRestart((1)null);
            RunnableEvent var2 = new RunnableEvent(var1, (Object)null);
            javax.swing.SystemEventQueueUtilities.RunnableCanvas.postRunnableEventToAll(var2);
         }

      }
   }

   private static void processRunnableEvent(RunnableEvent var0) {
      Object var1 = var0.lock;
      if (var1 == null) {
         var0.doRun.run();
      } else {
         synchronized(var1) {
            try {
               var0.doRun.run();
            } catch (Exception var10) {
               var0.exception = var10;
            } finally {
               if (var0.lock != null) {
                  var0.lock.notify();
               }

            }
         }
      }

   }

   private static void postRunnableCanvasEvent(RunnableEvent var0) {
      Object var1 = classLock;
      synchronized(var1) {
         RunnableCanvas var2 = javax.swing.SystemEventQueueUtilities.RunnableCanvas.lookup(var0);
         if (var2 == null) {
            if (var0.doRun instanceof ComponentWorkRequest) {
               ComponentWorkRequest var3 = (ComponentWorkRequest)var0.doRun;
               synchronized(var3) {
                  var3.isPending = false;
               }
            }

            if (var0.doRun instanceof Timer.DoPostEvent) {
               ((Timer.DoPostEvent)var0.doRun).getTimer().eventQueued = false;
            }

            if (var0.lock != null) {
               var0.lock.notify();
            }

         } else {
            var2.addRunnableEvent(var0);
            ((Component)var2).repaint();
         }
      }
   }

   private static ThreadGroup getThreadGroupSafely() {
      return (new Thread()).getThreadGroup();
   }

   // $FF: synthetic method
   static void access$100(RunnableEvent var0) {
      processRunnableEvent(var0);
   }

   // $FF: synthetic method
   static ThreadGroup access$300() {
      return getThreadGroupSafely();
   }

   static {
      if (!SwingUtilities.is1dot2) {
         System.err.println("warning: running 1.2 version of SystemEventQueueUtilities");
      }

   }
}