/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



package com.sun.star.wiki;

import com.sun.star.awt.XContainerWindowEventHandler;
import com.sun.star.awt.XControl;
import com.sun.star.awt.XControlContainer;
import com.sun.star.awt.XDialog;
import com.sun.star.awt.XDialogEventHandler;
import com.sun.star.awt.XWindow;
import com.sun.star.beans.XPropertySet;
import com.sun.star.lang.WrappedTargetException;
import com.sun.star.lang.XServiceInfo;
import com.sun.star.lib.uno.helper.WeakBase;
import com.sun.star.uno.AnyConverter;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.uno.XComponentContext;
import java.util.Hashtable;

public final class WikiOptionsEventHandlerImpl extends WeakBase
    implements XServiceInfo, XContainerWindowEventHandler, XDialogEventHandler
{
    static final String[] m_pServiceNames = { "com.sun.star.wiki.WikiOptionsEventHandler" };
    static final String m_sImplementationName = WikiOptionsEventHandlerImpl.class.getName();

    static final String sExternalEvent = "external_event";
    static final String sAdd = "Add";
    static final String sEdit = "Edit";
    static final String sRemove = "Remove";
    static final String sListStatus = "ListStatus";
    static final String sListEdit = "ListEdit";
    static final String sInitialize = "initialize";
    static final String sOk = "ok";
    static final String sBack = "back";

    private XComponentContext m_xContext;
    private XDialog m_xDialog;
    private XControlContainer m_xControlContainer;

    Settings m_aSettings;

    public WikiOptionsEventHandlerImpl( XComponentContext xContext )
    {
        m_xContext = xContext;
    }

    protected XPropertySet GetPropSet( String sControl )
    {
        if ( m_xControlContainer != null )
        {
            XControl xControl = m_xControlContainer.getControl(sControl);
            XPropertySet xListProps = (XPropertySet)UnoRuntime.queryInterface(XPropertySet.class, xControl.getModel() );
            return xListProps;
        }

        return null;
    }

    private void RefreshView()
    {
        if ( m_aSettings != null )
        {
            String[] pWikiList = m_aSettings.getWikiURLs();
            XPropertySet xListProps = GetPropSet( "WikiList" );
            if ( xListProps != null )
            {
                try
                {
                    xListProps.setPropertyValue( "StringItemList", pWikiList );
                }
                catch ( Exception ex )
                {
                    ex.printStackTrace();
                }
            }
        }
    }

    private void CheckButtonState()
    {
        XPropertySet xListProps = GetPropSet( "WikiList" );
        if ( xListProps != null )
        {
            try
            {
                short [] pSel = (short []) xListProps.getPropertyValue( "SelectedItems" );
                XPropertySet xEditProps = GetPropSet( "EditButton" );
                XPropertySet xRemoveProps = GetPropSet( "RemoveButton" );
                Boolean bState = new Boolean( pSel.length != 0 );

                xEditProps.setPropertyValue( "Enabled", bState );
                xRemoveProps.setPropertyValue( "Enabled", bState );
            }
            catch ( Exception ex )
            {
                ex.printStackTrace();
            }
        }
    }

    private void AddSetting()
    {
        WikiEditSettingDialog aSettingDialog = new WikiEditSettingDialog( m_xContext, "vnd.sun.star.script:WikiEditor.EditSetting?location=application" );
        if ( aSettingDialog.show() )
            RefreshView();

        aSettingDialog.DisposeDialog();
    }

    private void EditSetting()
    {
        XPropertySet xListProps = GetPropSet( "WikiList" );
        if ( xListProps != null )
        {
            Hashtable ht = null;
            try
            {
                short[] pSel = (short []) xListProps.getPropertyValue( "SelectedItems" );
                String[] pItems = (String []) xListProps.getPropertyValue("StringItemList");
                if ( pSel.length > 0 && pItems.length > pSel[0] )
                {
                    String selName = pItems[pSel[0]];
                    ht = m_aSettings.getSettingByUrl( pItems[pSel[0]] );
                }
            }
            catch ( Exception ex )
            {
                ex.printStackTrace();
            }

            WikiEditSettingDialog aSettingDialog = new WikiEditSettingDialog(m_xContext, "vnd.sun.star.script:WikiEditor.EditSetting?location=application", ht, true );
            if ( aSettingDialog.show() )
                RefreshView();

            aSettingDialog.DisposeDialog();
        }
    }

    private void RemoveSetting()
    {
        XPropertySet xListProps = GetPropSet("WikiList");
        if ( xListProps != null )
        {
            try
            {
                short[] pSel = (short []) xListProps.getPropertyValue("SelectedItems");
                String[] pItems = (String []) GetPropSet("WikiList").getPropertyValue("StringItemList");
                if ( pSel.length > 0 && pItems.length > pSel[0] )
                {
                    m_aSettings.removeSettingByUrl( pItems[pSel[0]] );
                    RefreshView();
                }
            }
            catch (Exception ex)
            {
                ex.printStackTrace();
            }
        }
    }

    private void InitStrings()
    {
        try
        {

            GetPropSet( "FixedLine1" ).setPropertyValue( "Label", Helper.GetLocalizedString( m_xContext, Helper.DLG_MEDIAWIKIEXTENSION_STRING ) );
            GetPropSet( "AddButton" ).setPropertyValue( "Label", Helper.GetLocalizedString( m_xContext, Helper.DLG_ADDBUTTON ) );
            GetPropSet( "EditButton" ).setPropertyValue( "Label", Helper.GetLocalizedString( m_xContext, Helper.DLG_EDITBUTTON ) );
            GetPropSet( "RemoveButton" ).setPropertyValue( "Label", Helper.GetLocalizedString( m_xContext, Helper.DLG_REMOVEBUTTON ) );
        }
        catch( Exception e )
        {
            e.printStackTrace();
        }
    }

    // com.sun.star.lang.XServiceInfo:
    public String getImplementationName()
    {
         return m_sImplementationName;
    }

    public boolean supportsService( String sService )
    {
        int len = m_pServiceNames.length;

        for( int i=0; i < len; i++ )
        {
            if ( sService.equals( m_pServiceNames[i] ))
                return true;
        }
        return false;
    }

    public String[] getSupportedServiceNames()
    {
        return m_pServiceNames;
    }

    // XContainerWindowEventHandler
    public boolean callHandlerMethod( XWindow xWindow, Object aEventObject, String sMethod )
        throws WrappedTargetException, com.sun.star.uno.RuntimeException
    {
        if ( sMethod.equals( sExternalEvent ) )
        {
            try
            {
                String sEvent = (String)AnyConverter.toString( aEventObject );
                if ( sEvent != null )
                {
                    if ( sEvent.equals( sOk ) )
                    {
                        if ( m_aSettings != null )
                            m_aSettings.storeConfiguration();
                    }
                    else if ( sEvent.equals( sInitialize ) || sEvent.equals( sBack ) )
                    {
                        if ( sEvent.equals( sInitialize ) )
                        {
                            m_xDialog = (XDialog)UnoRuntime.queryInterface( XDialog.class, xWindow );
                            m_xControlContainer = (XControlContainer)UnoRuntime.queryInterface(
                                                            XControlContainer.class, m_xDialog );
                            m_aSettings = Settings.getSettings( m_xContext );
                            m_aSettings.loadConfiguration(); // throw away all the noncommited changes
                            InitStrings();
                        }
                        else if ( m_aSettings != null )
                            m_aSettings.loadConfiguration(); // throw away all the noncommited changes

                        RefreshView();
                        CheckButtonState();
                    }
                }
            }
            catch ( com.sun.star.uno.RuntimeException r )
            {
                throw r;
            }
            catch ( com.sun.star.uno.Exception e )
            {
                throw new WrappedTargetException( sMethod, this, e );
            }
        }
        else if ( sMethod.equals( sAdd ) )
        {
            AddSetting();
        }
        else if ( sMethod.equals( sEdit ) || sMethod.equals( sListEdit ) )
        {
            EditSetting();
        }
        else if ( sMethod.equals( sRemove ) )
        {
            RemoveSetting();
            CheckButtonState();
        }
        else if ( sMethod.equals( sListStatus ) )
        {
            CheckButtonState();
        }

        return true;
    }

    public boolean callHandlerMethod( XDialog xDialog, Object aEventObject, String sMethod )
        throws WrappedTargetException, com.sun.star.uno.RuntimeException
    {


        return true;
    }

    public String[] getSupportedMethodNames()
    {
        return new String[] { sExternalEvent, sAdd, sEdit, sRemove };
    }
}