Java ContextAwareAction类代码示例

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
private static void close(final Project prj) {
    Mutex.EVENT.readAccess(new Mutex.Action<Object>() {
        public Object run() {
            LifecycleManager.getDefault().saveAll();
            
            Action closeAction = CommonProjectActions.closeProjectAction();
            closeAction = closeAction instanceof ContextAwareAction ? ((ContextAwareAction) closeAction).createContextAwareInstance(Lookups.fixed(new Object[] {prj})) : null;
            
            if (closeAction != null && closeAction.isEnabled()) {
                closeAction.actionPerformed(new ActionEvent(prj, -1, "")); // NOI18N
            } else {
                //fallback:
                OpenProjects.getDefault().close(new Project[] {prj});
            }
            
            return null;
        }
    });
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
public void testOperationActions() throws Exception { // #72397
    final NbModuleProject project = generateStandaloneModule("module");
    cgpi.setProject(project);
    DialogDisplayerImpl dd = (DialogDisplayerImpl) Lookup.getDefault().lookup(DialogDisplayer.class);
    FileObject lock = FileUtil.createData(project.getProjectDirectory(), "build/testuserdir/lock");
    RandomAccessFile raf = new RandomAccessFile(FileUtil.toFile(lock), "rw");
    FileLock lck = raf.getChannel().lock();
    EventQueue.invokeAndWait(new Runnable() {
        @Override public void run() {
            ((ContextAwareAction) CommonProjectActions.deleteProjectAction()).createContextAwareInstance(Lookups.singleton(project)).actionPerformed(null);
        }
    });
    assertNotNull("warning message emitted", dd.getLastNotifyDescriptor());
    assertEquals("warning message emitted", dd.getLastNotifyDescriptor().getMessage(),
            Bundle.ERR_ModuleIsBeingRun());
    dd.reset();
    lck.release();
    raf.close();
    lock.delete();
    EventQueue.invokeAndWait(new Runnable() {
        @Override public void run() {
            CommonProjectActions.deleteProjectAction().actionPerformed(null);
        }
    });
    assertNull("no warning message", dd.getLastNotifyDescriptor());
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
private void assertAction(String text, Action action, boolean b, Node n) throws Exception {
    final Action clone = action instanceof ContextAwareAction ? 
        ((ContextAwareAction)action).createContextAwareInstance(n.getLookup()) :
        action;
    
    assertTrue("Expecting " + text + " but was " + action, action.getClass().getName().contains(text));
    
    class Is implements Runnable {
        boolean is;
        public void run() {
            is = clone.isEnabled();
        }
    }
    Is enabled = new Is();
    SwingUtilities.invokeAndWait(enabled);
    
    assertEquals("Enabled? " + text + " and: " + b, b, enabled.is);
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
@ActionID(id = "org.netbeans.modules.maven.customPopup", category = "Project")
@ActionRegistration(displayName = "#LBL_Custom_Run", lazy=false)
@ActionReferences({
    @ActionReference(position = 1400, path = "Projects/org-netbeans-modules-maven/Actions"),
    @ActionReference(position = 250, path = "Loaders/text/x-maven-pom+xml/Actions"),
    @ActionReference(position = 1296, path = "Loaders/text/x-java/Actions"),
    @ActionReference(position = 1821, path = "Editors/text/x-java/Popup")
})
@Messages({"LBL_Custom_Run=Run Maven", "LBL_Custom_Run_File=Run Maven"})
public static ContextAwareAction customPopupActions() {
    return new ConditionallyShownAction() {
        
        protected @Override Action forProject(Project p, FileObject fo) {
            ActionProviderImpl ap = p.getLookup().lookup(ActionProviderImpl.class);
            return ap != null ? ap.new CustomPopupActions(triggeredOnFile, triggeredOnPom, fo) : null;
        }
    };
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
@ActionID(id = "org.netbeans.modules.maven.closeSubprojects", category = "Project")
@ActionRegistration(displayName = "#ACT_CloseRequired", lazy=false)
@ActionReference(position = 2000, path = "Projects/org-netbeans-modules-maven/Actions")
@Messages("ACT_CloseRequired=Close Required Projects")
public static ContextAwareAction closeSubprojectsAction() {
    return new ConditionallyShownAction() {
        protected @Override Action forProject(Project p, FileObject fo) {
            NbMavenProjectImpl project = p.getLookup().lookup(NbMavenProjectImpl.class);
            if (project != null && NbMavenProject.TYPE_POM.equalsIgnoreCase(project.getProjectWatcher().getPackagingType())) {
                return new CloseSubprojectsAction(project);
            } else {
                return null;
            }
        }
    };
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
public void testActionStatusUpdatedOnLookupChange() throws Exception {
    final InstanceContent content = new InstanceContent();
    Lookup lkp = new AbstractLookup( content );
    final SaveAsCapable saveAsImpl = new SaveAsCapable() {
        public void saveAs(FileObject folder, String name) throws IOException {
            throw new UnsupportedOperationException("Not supported yet.");
        }
    };
    
    TopComponent tc = new TopComponent( lkp );
    editorMode.dockInto( tc );
    tc.open();
    tc.requestActive();
    assertTrue(Arrays.asList(WindowManager.getDefault().getOpenedTopComponents(editorMode)).contains(tc));
    
    ContextAwareAction action = SaveAsAction.create();
    assertFalse( "action is disabled for editor windows without SaveAsCapable in their Lookup", action.isEnabled() );
    
    Action a = action.createContextAwareInstance( tc.getLookup() );
    
    content.add( saveAsImpl );
    assertTrue( "action is enabled for editor windows with SaveAsCapable in their Lookup", a.isEnabled() );
    content.remove( saveAsImpl );
    assertFalse( "action is disabled for editor windows without SaveAsCapable in their Lookup", a.isEnabled() );
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
/** Requests refresh of our lookup everytime component is chagned.
 */
public void propertyChange(java.beans.PropertyChangeEvent evt) {
    if (TopComponent.Registry.PROP_ACTIVATED.equals (evt.getPropertyName())) {
        org.openide.util.Utilities.actionsGlobalContext ().lookup (javax.swing.ActionMap.class);
    }
    if ("permanentFocusOwner".equals(evt.getPropertyName())) {
        Component[] arr = { (Component)evt.getNewValue() };
        if (arr[0] instanceof AbstractButton) {
            Action a = ((AbstractButton)arr[0]).getAction();
            if (a instanceof ContextAwareAction) {
                // ignore focus change into a button with our action
                return;
            }
        }
        blickActionMap(null, arr);
    }
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
public void testCanTCGarbageCollectWhenActionInMap() {
    TopComponent tc = new TopComponent();
    class CAA extends AbstractAction implements
            ContextAwareAction {
        public void actionPerformed(ActionEvent arg0) {
            throw new UnsupportedOperationException("Not supported yet.");
        }

        public Action createContextAwareInstance(Lookup actionContext) {
            return this;
        }

    }
    ContextAwareAction del = new CAA();
    ContextAwareAction context = Actions.context(Integer.class, true, true, del, null, "DisplayName", null, true);
    Action a = context.createContextAwareInstance(tc.getLookup());
    tc.getActionMap().put("key", a);

    WeakReference<Object> ref = new WeakReference<Object>(tc);
    tc = null;
    a = null;
    del = null;
    context = null;
    assertGC("Can the component GC?", ref);
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
public void testCanTCGarbageCollectWhenActionInMapAndAssignLookup() {
    TopComponent tc = new TopComponent();
    class CAA extends AbstractAction implements
            ContextAwareAction {
        public void actionPerformed(ActionEvent arg0) {
            throw new UnsupportedOperationException("Not supported yet.");
        }

        public Action createContextAwareInstance(Lookup actionContext) {
            return this;
        }

    }
    tc.associateLookup(Lookups.fixed(tc.getActionMap(), tc));
    ContextAwareAction del = new CAA();
    ContextAwareAction context = Actions.context(Integer.class, true, true, del, null, "DisplayName", null, true);
    Action a = context.createContextAwareInstance(tc.getLookup());
    tc.getActionMap().put("key", a);

    WeakReference<Object> ref = new WeakReference<Object>(tc);
    tc = null;
    a = null;
    del = null;
    context = null;
    assertGC("Can the component GC?", ref);
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
public void testContextAction() throws Exception {
    Action a = Actions.forID("Tools", "on.int");
    assertTrue("It is context aware action", a instanceof ContextAwareAction);

    InstanceContent ic = new InstanceContent();
    AbstractLookup lkp = new AbstractLookup(ic);
    Action clone = ((ContextAwareAction) a).createContextAwareInstance(lkp);
    NumberLike ten = new NumberLike(10);
    ic.add(ten);

    assertEquals("Number lover!", clone.getValue(Action.NAME));
    clone.actionPerformed(new ActionEvent(this, 300, ""));
    assertEquals("Global Action not called", 10, Context.cnt);

    ic.remove(ten);
    clone.actionPerformed(new ActionEvent(this, 200, ""));
    assertEquals("Global Action stays same", 10, Context.cnt);
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
public void testMultiContextAction() throws Exception {
    ContextAwareAction a = (ContextAwareAction) Actions.forID("Tools", "on.numbers");

    InstanceContent ic = new InstanceContent();
    AbstractLookup lkp = new AbstractLookup(ic);
    Action clone = a.createContextAwareInstance(lkp);
    NumberLike ten = new NumberLike(10);
    NumberLike three = new NumberLike(3);
    ic.add(ten);
    ic.add(three);

    assertEquals("Number lover!", clone.getValue(Action.NAME));
    clone.actionPerformed(new ActionEvent(this, 300, ""));
    assertEquals("Global Action not called", 13, MultiContext.cnt);

    ic.remove(ten);
    clone.actionPerformed(new ActionEvent(this, 200, ""));
    assertEquals("Adds 3", 16, MultiContext.cnt);

    ic.remove(three);
    assertFalse("It is disabled", clone.isEnabled());
    clone.actionPerformed(new ActionEvent(this, 200, ""));
    assertEquals("No change", 16, MultiContext.cnt);
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
public void testActionsUpdatedWhenActionMapChanges() throws Exception {
    ContextAwareAction a = Actions.callback("ahoj", null, true, "Ahoj!", "no/icon.png", true);
    final InstanceContent ic = new InstanceContent();
    Lookup lkp = new AbstractLookup(ic);

    ActionMap a1 = new ActionMap();
    ActionMap a2 = new ActionMap();
    a2.put("ahoj", new Enabled());

    ic.add(a1);
    Action clone = a.createContextAwareInstance(lkp);
    class L implements PropertyChangeListener {
        int cnt;
        public void propertyChange(PropertyChangeEvent evt) {
            cnt++;
        }
    }
    L listener = new L();
    clone.addPropertyChangeListener(listener);
    assertFalse("Not enabled", isEnabled(clone));

    ic.set(Collections.singleton(a2), null);

    assertTrue("Enabled now", isEnabled(clone));
    assertEquals("one change", 1, listener.cnt);
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
public void testSurviveFocusChange() throws Exception {
    InstanceContent ic = new InstanceContent();
    Lookup lkp = new AbstractLookup(ic);

    Action clone = ((ContextAwareAction) Actions.forID("cat", "survive")).createContextAwareInstance(lkp);
    L listener = new L();
    clone.addPropertyChangeListener(listener);

    assertFalse("Disabled", clone.isEnabled());
    Object val = Integer.valueOf(1);
    ic.add(val);
    assertTrue("Enabled now", clone.isEnabled());
    assertEquals("One change", 1, listener.cnt);
    ic.remove(val);
    assertTrue("Still Enabled", clone.isEnabled());

    Survival.value = 0;
    clone.actionPerformed(new ActionEvent(this, 0, ""));
    assertEquals("Added one", 1, Survival.value);
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
public void testListenerGCed () throws Exception {
    InstanceContent ic = new InstanceContent();
    lkp = new AbstractLookup(ic);
    Lookup.Result<Integer> lookupResult = lkp.lookupResult(Integer.class);

    Action action = ((ContextAwareAction) Actions.forID("cat", "survive")).createContextAwareInstance(lkp);
    Action fallbackAction = ((GeneralAction.DelegateAction) action).fallback;
    WeakReference<Action> fallbackActionRef = new WeakReference<Action>(fallbackAction);
    WeakReference<Action> clone = new WeakReference<Action>(action);
    cm = ContextManager.findManager(lkp, true);
    WeakReference lsetRef = new WeakReference<Object>(cm.findLSet(Integer.class));

    action = null;

    assertGC("Action should be GCed", clone);

    fallbackAction = null;

    assertGC("Fallback action should be GCed", fallbackActionRef);
    assertGC("Action LSet Should be GCed", lsetRef);
    lookupResult.allInstances();
}
 

import org.openide.util.ContextAwareAction; //导入依赖的package包/类
public void testBasicUsageWithEnablerFromLayer() throws Exception {
    FileObject folder;
    folder = FileUtil.getConfigFile("actions/support/test");
    assertNotNull("testing layer is loaded: ", folder);

    FileObject fo = folder.getFileObject("testContextEnabler.instance");
    
    Object obj = fo.getAttribute("instanceCreate");
    if (!(obj instanceof ContextAwareAction)) {
        fail("Shall create an action: " + obj);
    }
    ContextAwareAction caa = (ContextAwareAction)obj;
    Action action = caa.createContextAwareInstance(lookupProxy);
    
    
    doBasicUsageWithEnabler(action);
}