Java Presenter类代码示例

import org.openide.util.actions.Presenter; //导入依赖的package包/类
/**
           * Accepts only cookies that can provide <code>Menu</code>.
           * @param cookie an <code>InstanceCookie</code> to test
           * @return true if the cookie can provide accepted instances
           */
  	    protected @Override InstanceCookie acceptCookie(InstanceCookie cookie)
  	    throws IOException, ClassNotFoundException {
// [pnejedly] Don't try to optimize this by InstanceCookie.Of
// It will load the classes few ms later from instanceCreate
// anyway and more instanceOf calls take longer
          	Class c = cookie.instanceClass();
              boolean action = Action.class.isAssignableFrom (c);
              if (action) {
                  cookie.instanceCreate();
              }
          	boolean is =
              	Presenter.Menu.class.isAssignableFrom (c) ||
              	JMenuItem.class.isAssignableFrom (c) ||
              	JSeparator.class.isAssignableFrom (c) ||
                  action;
          	return is ? cookie : null;
  	    }
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
/**
 * Accepts only cookies that can provide <code>Toolbar</code>.
 * @param cookie an <code>InstanceCookie</code> to test
 * @return true if the cookie can provide accepted instances
 */
@Override
protected InstanceCookie acceptCookie (InstanceCookie cookie)
    throws IOException, ClassNotFoundException {
    boolean is;
    boolean action;
    
    if (cookie instanceof InstanceCookie.Of) {
        InstanceCookie.Of of = (InstanceCookie.Of)cookie;
        action = of.instanceOf (Action.class);
        is = of.instanceOf (Component.class) ||
             of.instanceOf (Presenter.Toolbar.class) ||
             action;
    } else {
        Class c = cookie.instanceClass();
        action = Action.class.isAssignableFrom (c);
        is = Component.class.isAssignableFrom(c) ||
             Presenter.Toolbar.class.isAssignableFrom(c) ||
             action;
    }
    if (action) {
        cookie.instanceCreate();
    }
    
    return is ? cookie : null;
}
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
public void testManualRefreshPreference() throws IOException {
    Preferences pref = NbPreferences.root().node("org/openide/actions/FileSystemRefreshAction");
    assertFalse("Not set", pref.getBoolean("manual", false));

    FileObject fo = FileUtil.toFileObject(getWorkDir());
    Lookup lkp = Lookups.singleton(DataFolder.findFolder(fo).getNodeDelegate());

    FileSystemAction fsa = FileSystemAction.get(FileSystemAction.class);
    Action a = fsa.createContextAwareInstance(lkp);

    assertEquals("Menu presenter ", true, a instanceof Presenter.Menu);

    Presenter.Menu pm = (Presenter.Menu)a;
    DynamicMenuContent submenu = (DynamicMenuContent)pm.getMenuPresenter();
    assertEquals("No submenu", 0, submenu.getMenuPresenters().length);

    pref.putBoolean("manual", true);

    DynamicMenuContent submenu2 = (DynamicMenuContent)pm.getMenuPresenter();
    assertEquals("One action", 1, submenu2.getMenuPresenters().length);
}
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
private static boolean setShowEditorToolbar( boolean show ) {
    boolean res = true;
    Action toggleEditorToolbar = FileUtil.getConfigObject( "Editors/Actions/toggle-toolbar.instance", Action.class ); //NOI18N
    if( null != toggleEditorToolbar ) {
        if( toggleEditorToolbar instanceof Presenter.Menu ) {
            JMenuItem menuItem = ((Presenter.Menu)toggleEditorToolbar).getMenuPresenter();
            if( menuItem instanceof JCheckBoxMenuItem ) {
                JCheckBoxMenuItem checkBoxMenu = ( JCheckBoxMenuItem ) menuItem;
                res = checkBoxMenu.isSelected();
                if( checkBoxMenu.isSelected() != show ) {
                    try {
                        toggleEditorToolbar.actionPerformed( new ActionEvent( menuItem, 0, "")); //NOII18N
                    } catch( Exception ex ) {
                        //don't worry too much if it isn't working, we're just trying to be helpful here
                        Logger.getLogger( EditorOnlyDisplayer.class.getName()).log( Level.FINE, null, ex );
                    }
                }
            }
        }
    }

    return res;
}
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
public void testActionPerformed() {
    instanceContent.add(sqlExecution);
    Component tp = ((Presenter.Toolbar)action).getToolbarPresenter();
    assertTrue("The toolbar presenter should be a JButton", tp instanceof JButton);

    JButton button = (JButton)tp;
    button.doClick();
    assertTrue("Should perform the action when SQLExecution in the context", baseAction.actionPeformedCount == 1);

    instanceContent.remove(sqlExecution);
    button.doClick();
    assertTrue("Should not perform the action when no SQLExecution in the context", baseAction.actionPeformedCount == 1);

    instanceContent.add(sqlExecution);
    button.doClick();
    assertTrue("Should perform the action when SQLExecution in the context", baseAction.actionPeformedCount == 2);
}
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
public void testIsPopupVisible() throws Exception {
    ToolsAction ta = ToolsAction.get(ToolsAction.class);

    Lookup lkp = Lookups.singleton(this);
    FileObject fo = FileUtil.createFolder(FileUtil.getConfigRoot(), "UI/ToolActions");
    assertNotNull("ToolActions folder found", fo);

    fo.createFolder("Cat1").createData("org-openide-actions-SaveAction.instance").setAttribute("position", 100);

    Action a = ta.createContextAwareInstance(lkp);
    assertTrue("It is menu presenter", a instanceof Presenter.Popup);
    Presenter.Popup pp = (Presenter.Popup)a;
    JMenuItem item = pp.getPopupPresenter();

    assertTrue("Item is enabled", item.isEnabled());
    DynamicMenuContent dmc = (DynamicMenuContent)item;
    assertEquals("One presenter to delegte to", 1, dmc.getMenuPresenters().length);
}
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
public void testInlineIsNotBlocked() throws Exception {
    ToolsAction ta = ToolsAction.get(ToolsAction.class);

    Lookup lkp = Lookups.singleton(this);
    FileObject fo = FileUtil.createFolder(FileUtil.getConfigRoot(), "UI/ToolActions");
    assertNotNull("ToolActions folder found", fo);

    fo.createFolder("Cat3").createData(BlockingAction.class.getName().replace('.', '-') + ".instance").setAttribute("position", 100);

    Action a = ta.createContextAwareInstance(lkp);
    assertTrue("It is menu presenter", a instanceof Presenter.Menu);
    Presenter.Menu mp = (Presenter.Menu)a;
    JMenuItem item = mp.getMenuPresenter();

    assertTrue("Item is enabled", item.isEnabled());
    DynamicMenuContent dmc = (DynamicMenuContent)item;
    final JComponent[] arr = dmc.getMenuPresenters();
    assertEquals("One presenter to delegte to", 1, arr.length);
    assertFalse("Disabled", arr[0].isEnabled());
}
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
/** Updates the <code>MenuBar</code> represented by this folder.
    *
    * @param cookies array of instance cookies for the folder
    * @return the updated <code>MenuBar</code> representee
    */
   protected Object createInstance (InstanceCookie[] cookies)
   throws IOException, ClassNotFoundException {
       final LinkedList ll = new LinkedList ();
       allInstances (cookies, ll);

final MenuBar mb = MenuBar.this;

       cleanUp(); //remove the stuff we've added last time

       // fill with new content
       Iterator it = ll.iterator ();
       while (it.hasNext()) {
           Object obj = it.next ();
           if (obj instanceof Presenter.Toolbar) {
               obj = ((Presenter.Toolbar)obj).getToolbarPresenter();
               if (obj instanceof JButton) { // tune the presenter a bit
                   ((JButton)obj).setBorderPainted(false);
               }
           }
           if (obj instanceof Component) addComponent((Component) obj);
       }
       mb.validate();
       mb.repaint();
       return mb;
   }
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
/**
 * Accepts only cookies that can provide <code>Toolbar</code>.
 * @param cookie an <code>InstanceCookie</code> to test
 * @return true if the cookie can provide accepted instances
 */
protected InstanceCookie acceptCookie (InstanceCookie cookie)
throws java.io.IOException, ClassNotFoundException {
    boolean is;
    
    if (cookie instanceof InstanceCookie.Of) {
        InstanceCookie.Of of = (InstanceCookie.Of)cookie;
        is = of.instanceOf (Component.class) ||
             of.instanceOf (Presenter.Toolbar.class) ||
             of.instanceOf (Action.class);
    } else {
        Class c = cookie.instanceClass();
        is = Component.class.isAssignableFrom(c) ||
             Presenter.Toolbar.class.isAssignableFrom(c) ||
             Action.class.isAssignableFrom (c);
    }
    return is ? cookie : null;
}
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
protected JToolBar createToolbar() {
    JToolBar toolbar = new Toolbar(getShortName());
    String toolbarActionsPath = "Office/" + getShortName() + "/Toolbar";
    List<? extends Action> toolbarActions = Utilities.actionsForPath(toolbarActionsPath);
    for (Action action : toolbarActions) {
        if (action == null) {
            toolbar.addSeparator();
        } else if (action instanceof Presenter.Toolbar) {
            Component actionComponent = ((Presenter.Toolbar) action).getToolbarPresenter();
            toolbar.add(actionComponent);
        } else {
            JButton newButton = toolbar.add(action);
            if (newButton.getToolTipText() == null) {
                String label = (String) action.getValue("displayName");
                newButton.setToolTipText(label);
            }
        }
    }
    return toolbar;
}
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
public static JPopupMenu createPopupMenu(String path) {
    JPopupMenu popUp = new JPopupMenu();
    
    List<? extends Action> actions = Utilities.actionsForPath(path);
    if(actions.isEmpty())
        return null;
    
    for(Action action : actions) {
        if(action instanceof Presenter.Popup) {
            popUp.add(((Presenter.Popup)action).getPopupPresenter());
        } else if (action == null) {
            popUp.addSeparator();
        } else {
            popUp.add(createActionPopUpItem(action));
        }
    }
    
    return popUp;
}
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
private static JMenuItem getPopupMenuItem(Action action) {
    JMenuItem popupItem = null;
    if (action instanceof BaseAction) {
        popupItem = ((BaseAction) action).getPopupMenuItem(null);
    }
    if (popupItem == null) {
        if (action instanceof Presenter.Popup) {
            popupItem = ((Presenter.Popup) action).getPopupPresenter();
        }
    }
    return popupItem;
}
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
private void fillToolBar() {
    actionsBar.removeAll();

    for (Action action : getToolbarActions()) {
        if (action instanceof Presenter.Toolbar) {
            actionsBar.add(((Presenter.Toolbar) action).getToolbarPresenter());
        }
    }

    actionsBar.revalidate();
    actionsBar.repaint();
}
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
private static void resolveInstance(Object instance, List<JComponent> result) throws IOException {
   if (instance instanceof Presenter.Popup) {
       JMenuItem temp = ((Presenter.Popup) instance).getPopupPresenter();
       result.add(temp);
   } else if (instance instanceof JSeparator) {
       result.add(null);
   } else if (instance instanceof JComponent) {
       result.add((JComponent) instance);
   } else if (instance instanceof Action) {
       Actions.MenuItem mi = new Actions.MenuItem((Action) instance, true);
       result.add(mi);
   } else {
       throw new IOException(String.format("Unsupported instance: %s, class: %s", instance, instance.getClass())); // NOI18N
   }
}
 

import org.openide.util.actions.Presenter; //导入依赖的package包/类
private JMenuItem item(Action a, boolean menu) {
    if (menu) {
        if (a instanceof Presenter.Menu) {
            return ((Presenter.Menu) a).getMenuPresenter();
        } else {
            return new JMenuItem(a);
        }
    } else {
        if (a instanceof Presenter.Popup) {
            return ((Presenter.Popup)a).getPopupPresenter();        
        } else {
            return new JMenuItem(a);
        }
    }
}