com.clustercontrol.repository.view.AgentListView.java Source code

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Here is the source code for com.clustercontrol.repository.view.AgentListView.java

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/*
    
Copyright (C) 2006 NTT DATA Corporation
    
This program is free software; you can redistribute it and/or
Modify it under the terms of the GNU General Public License
as published by the Free Software Foundation, version 2.
    
This program is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.  See the GNU General Public License for more details.
    
 */

package com.clustercontrol.repository.view;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.commands.ICommandService;

import com.clustercontrol.repository.composite.AgentListComposite;
import com.clustercontrol.repository.view.action.AgentRestartAction;
import com.clustercontrol.repository.view.action.AgentUpdateAction;
import com.clustercontrol.repository.view.action.RefreshAgentAction;
import com.clustercontrol.util.WidgetTestUtil;
import com.clustercontrol.view.CommonViewPart;

/**
 * <BR>
 *
 * @version 5.0.0
 * @since 1.0.0
 */
public class AgentListView extends CommonViewPart {
    public static final String ID = AgentListView.class.getName();

    /**  */
    private static Log m_log = LogFactory.getLog(AgentListView.class);

    // ----- instance  ----- //

    /** ? */
    private AgentListComposite composite = null;

    /** ? */
    private int rowNum = 0;

    // -----  ----- //

    /**
     * ???
     */
    public AgentListView() {
        super();
    }

    protected String getViewName() {
        return this.getClass().getName();
    }

    // ----- instance  ----- //

    /**
     * @see org.eclipse.ui.IWorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
     */
    @Override
    public void createPartControl(Composite parent) {
        super.createPartControl(parent);
        GridLayout layout = new GridLayout(1, true);
        parent.setLayout(layout);
        layout.marginHeight = 0;
        layout.marginWidth = 0;

        composite = new AgentListComposite(parent, SWT.NONE);
        WidgetTestUtil.setTestId(this, null, composite);
        GridData gridData = new GridData();
        gridData.horizontalAlignment = GridData.FILL;
        gridData.verticalAlignment = GridData.FILL;
        gridData.grabExcessHorizontalSpace = true;
        gridData.grabExcessVerticalSpace = true;
        composite.setLayoutData(gridData);

        //??
        createContextMenu();

        // ?
        composite.getTableViewer().addSelectionChangedListener(new ISelectionChangedListener() {

            @Override
            public void selectionChanged(SelectionChangedEvent event) {
                //?[]??
                IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
                IViewPart viewPart = page.findView(AgentListView.ID);
                //??
                StructuredSelection selection = (StructuredSelection) event.getSelection();

                if (viewPart != null && selection != null) {
                    AgentListView view = (AgentListView) viewPart.getAdapter(AgentListView.class);
                    if (view == null) {
                        m_log.info("selection changed: view is null");
                        return;
                    }
                    //???/???
                    view.setEnabledAction(selection.size(), event.getSelection());
                }
            }
        });
        update();
    }

    /**
     * ??
     *
     *
     */
    private void createContextMenu() {
        MenuManager menuManager = new MenuManager();
        menuManager.setRemoveAllWhenShown(true);

        Menu menu = menuManager.createContextMenu(composite.getTable());
        WidgetTestUtil.setTestId(this, null, menu);
        composite.getTable().setMenu(menu);
        getSite().registerContextMenu(menuManager, this.composite.getTableViewer());
    }

    /**
     * composite???
     *
     * @return composite
     */
    public AgentListComposite getComposite() {
        return composite;
    }

    /**
     * ????
     * <p>
     */
    public void update() {
        composite.update();
    }

    /**
     * ????
     * @return rowNum
     */
    public int getSelectedNum() {
        return this.rowNum;
    }

    /**
     * ??/???
     *
     * @param num ?
     * @param selection ?????
     */
    public void setEnabledAction(int num, ISelection selection) {
        this.rowNum = num;

        //??/??
        ICommandService service = (ICommandService) PlatformUI.getWorkbench().getService(ICommandService.class);
        if (null != service) {
            service.refreshElements(AgentRestartAction.ID, null);
            service.refreshElements(AgentUpdateAction.ID, null);
            service.refreshElements(RefreshAgentAction.ID, null);

            // Update ToolBar after elements refreshed
            // WARN : Both ToolBarManager must be updated after updateActionBars(), otherwise icon won't change.
            getViewSite().getActionBars().updateActionBars();
            getViewSite().getActionBars().getToolBarManager().update(false);

        }
    }
}