/*******************************************************************************
 * Copyright (c) 2004, 2008 IBM Corporation and Others
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Kentarou FUKUDA - initial API and implementation
 *******************************************************************************/

package org.eclipse.actf.visualization.engines.blind.html.ui.elementViewer;

import java.util.List;

import org.eclipse.actf.mediator.Mediator;
import org.eclipse.actf.model.IModelService;
import org.eclipse.actf.model.IWebBrowserACTF;
import org.eclipse.actf.visualization.engines.blind.BlindVizEnginePlugin;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.TabFolder;
import org.eclipse.swt.widgets.TabItem;
import org.eclipse.ui.plugin.AbstractUIPlugin;


public class ViewerPanelJFace implements IViewerPanel {
    private Shell shell;

    private List idList;

    private IHighlightElementListener prb;

    private ElementViewerJFace idViewer;

    private ElementViewerJFace akeyViewer;

    private ElementViewerJFace classViewer;

    private CSSViewer cssViewer;
    
    private boolean isDisposed = false;

    public ViewerPanelJFace(Shell _shell, VisualizeStyleInfo styleInfo, IHighlightElementListener _prb) {

        if (styleInfo == null) {
            styleInfo = new VisualizeStyleInfo();
            idList = null;
        } else {
            idList = styleInfo.getOrigIdList();
        }
        
        prb = _prb;
        shell = new Shell(_shell, SWT.MIN | SWT.MAX | SWT.RESIZE | SWT.CLOSE);
        shell.setLayout(new GridLayout());

        shell.setText(TITLE_NAME);
        //TODO
        shell.setImage(AbstractUIPlugin.imageDescriptorFromPlugin(BlindVizEnginePlugin.PLUGIN_ID, "icons/excla_squ.png").createImage());

        shell.setLocation(100, 100);

        Composite composite = new Composite(shell, SWT.NULL);
        composite.setLayoutData(new GridData(GridData.FILL_BOTH));
        GridLayout gridLayout1 = new GridLayout();
        gridLayout1.numColumns = 1;
        composite.setLayout(gridLayout1);

        TabFolder viewerFolder = new TabFolder(composite, SWT.NULL);
        GridData gridData = new GridData(GridData.FILL_BOTH);
        // gridData.heightHint = 300;
        viewerFolder.setLayoutData(gridData);

        TabItem tabItemEle = new TabItem(viewerFolder, SWT.NULL);
        tabItemEle.setText(ID_TAB_TITLE);
        idViewer = new ElementViewerJFace(viewerFolder, prb);

        idViewer.setCategoryColWidth(100);
        idViewer.setDescColWidth(0);
        idViewer.setContentProvider(new ArrayContentProvider());
        idViewer.setLabelProvider(new ElementLabelAndColorProvider());
        idViewer.setElementList(idList);
        tabItemEle.setControl(idViewer.getComposite());

        TabItem tabItemAKey = new TabItem(viewerFolder, SWT.NULL);
        tabItemAKey.setText(ACCESSKEY_TAB_TITLE);
        akeyViewer = new ElementViewerJFace(viewerFolder, prb);
        akeyViewer.setCategoryColWidth(0);
        akeyViewer.setDescColWidth(150);
        akeyViewer.setContentProvider(new ArrayContentProvider());
        akeyViewer.setLabelProvider(new ElementLabelAndColorProvider());
        akeyViewer.setElementList(styleInfo.getAccesskeyList());
        tabItemAKey.setControl(akeyViewer.getComposite());

        TabItem tabItemClass = new TabItem(viewerFolder, SWT.NULL);
        tabItemClass.setText(CLASS_TAB_TITLE);
        classViewer = new ElementViewerJFace(viewerFolder, prb);
        classViewer.setCategoryColWidth(0);
        classViewer.setDescColWidth(0);
        classViewer.setContentProvider(new ArrayContentProvider());
        classViewer.setLabelProvider(new ElementLabelAndColorProvider());
        classViewer.setElementList(styleInfo.getClassList());
        tabItemClass.setControl(classViewer.getComposite());

        TabItem tabItemCss = new TabItem(viewerFolder, SWT.NULL);
        tabItemCss.setText(CSS_TAB_TITLE);
        cssViewer = new CSSViewer(viewerFolder);
        cssViewer.setCssSet(styleInfo.getImportedCssSet());
        tabItemCss.setControl(cssViewer.getCompositeCss());

        viewerFolder.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent event) {
                if (idList != null) {
                    recoveryHighlight();
                }
            }
        });

        Button closeButton = new Button(composite, SWT.NULL);
        closeButton.setText(CLOSE_BUTTON);
        gridData = new GridData(GridData.HORIZONTAL_ALIGN_END);
        closeButton.setLayoutData(gridData);
        closeButton.addMouseListener(new MouseAdapter() {
            public void mouseUp(MouseEvent e) {
                shell.dispose();
            }
        });

        //TODO move to manager?
        shell.addDisposeListener(new DisposeListener() {
            public void widgetDisposed(DisposeEvent arg0) {
                if (null != idList) {
                    recoveryHighlight();
                }
                //prb.setViewerPanel(null);
                isDisposed = true;
            }
        });

        shell.setSize(450, 420);

        shell.open();

    }
    
    private void recoveryHighlight(){
        IModelService dataSource = Mediator.getInstance().getActiveModelService();
        
        if(dataSource != null &&dataSource instanceof IWebBrowserACTF){
            ((IWebBrowserACTF)dataSource).recoveryHighlight();
        }
        prb.clearHighlight();
    }

    public void asyncUpdateValue(VisualizeStyleInfo styleInfo) {
        final VisualizeStyleInfo _styleInfo = styleInfo;
        shell.getDisplay().asyncExec(new Thread() {
            public void run() {
                idList = _styleInfo.getOrigIdList();
                idViewer.setElementList(idList);
                akeyViewer.setElementList(_styleInfo.getAccesskeyList());
                classViewer.setElementList(_styleInfo.getClassList());
                cssViewer.setCssSet(_styleInfo.getImportedCssSet());
            }
        });
    }

    public void forceActive() {
        shell.setMinimized(false);
        shell.setVisible(true);
        shell.forceActive();
    }

    public void hide() {
        shell.setVisible(false);
    }

    public boolean isDisposed() {
        return isDisposed;
    }

}