/*******************************************************************************
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 *
 *******************************************************************************/

package com.liferay.ide.service.ui.editor;

import com.liferay.ide.service.ui.ServiceUI;
import com.liferay.ide.ui.util.UIUtil;

import java.lang.reflect.Field;
import java.lang.reflect.Method;

import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor;
import org.eclipse.jdt.internal.ui.javaeditor.JavaSourceViewer;
import org.eclipse.jdt.ui.actions.SelectionDispatchAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.text.IInformationControlCreator;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.information.InformationPresenter;
import org.eclipse.swt.graphics.Rectangle;

/**
 * @author Gregory Amerson
 */
@SuppressWarnings( "restriction" )
public class ServiceMethodWrapperLookupHyperlink extends ServiceMethodHyperlink
{
    private final JavaEditor editor;

    public ServiceMethodWrapperLookupHyperlink(
        JavaEditor editor, final IRegion word, final SelectionDispatchAction action, final IMethod wrapperMethod,
        final boolean qualify )
    {
        super( word, action, wrapperMethod, qualify );
        this.editor = editor;
    }

    @Override
    protected String getStaticText()
    {
        return "Open Service Wrapper";
    }

    @Override
    public void open()
    {
        JavaSourceViewer sourceViewer = (JavaSourceViewer) editor.getViewer();

        try
        {
            // call internal APIs to display quick heirarchy
            Field p = sourceViewer.getClass().getSuperclass().getDeclaredField( "fHierarchyPresenter" );
            p.setAccessible( true );
            InformationPresenter presenter = (InformationPresenter) p.get( sourceViewer );
            Class<? extends InformationPresenter> presenterClass = presenter.getClass();
            Class<?> presenterSuperclass = presenterClass.getSuperclass();
            Method m = presenterSuperclass.getDeclaredMethod(
                    "setCustomInformationControlCreator", IInformationControlCreator.class );
            m.setAccessible( true );
            m.invoke( presenter, (IInformationControlCreator) null );
            m = presenterClass.getDeclaredMethod( "computeArea", IRegion.class );
            m.setAccessible( true );
            Rectangle bounds = (Rectangle) m.invoke( presenter, wordRegion() );
            m = presenterSuperclass.getDeclaredMethod( "setInformation", Object.class, Rectangle.class );
            m.setAccessible( true );
            m.invoke( presenter, method(), bounds );
        }
        catch( Exception e )
        {
            ServiceUI.logError( "Could not open service wrapper", e );
            MessageDialog.openError(
                UIUtil.getActiveShell(), "Open Service Wrapper",
                "Could not open service wrapper, see error log for details." );
        }
    }

}