org.eclipse.swt.snippets.Snippet187.java Source code

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Here is the source code for org.eclipse.swt.snippets.Snippet187.java

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/*******************************************************************************
 * Copyright (c) 2000, 2015 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.snippets;

import org.eclipse.swt.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.ole.win32.*;
import org.eclipse.swt.widgets.*;

/*
 * Running a script within IE. (win32 only)
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 */

public class Snippet187 {

    public static void main(String[] args) {
        final Display display = new Display();
        Shell shell = new Shell(display);
        shell.setText("Snippet 187");
        shell.setLayout(new FillLayout());
        OleControlSite controlSite;
        try {
            OleFrame frame = new OleFrame(shell, SWT.NONE);
            controlSite = new OleControlSite(frame, SWT.NONE, "Shell.Explorer");
            controlSite.doVerb(OLE.OLEIVERB_INPLACEACTIVATE);
        } catch (SWTError e) {
            System.out.println("Unable to open activeX control");
            display.dispose();
            return;
        }

        // IWebBrowser
        final OleAutomation webBrowser = new OleAutomation(controlSite);

        // When the document is loaded, access the document object for the new page
        // and evalute expression using Script.
        int DownloadComplete = 104;
        controlSite.addEventListener(DownloadComplete, new OleListener() {
            @Override
            public void handleEvent(OleEvent event) {
                int[] htmlDocumentID = webBrowser.getIDsOfNames(new String[] { "Document" });
                if (htmlDocumentID == null)
                    return;
                Variant pVarResult = webBrowser.getProperty(htmlDocumentID[0]);
                if (pVarResult == null || pVarResult.getType() == 0)
                    return;
                //IHTMLDocument2
                OleAutomation htmlDocument = null;
                try {
                    htmlDocument = pVarResult.getAutomation();
                    pVarResult.dispose();

                    int[] scriptID = htmlDocument.getIDsOfNames(new String[] { "Script" });
                    if (scriptID == null)
                        return;
                    pVarResult = htmlDocument.getProperty(scriptID[0]);
                    if (pVarResult == null || pVarResult.getType() == 0)
                        return;
                    OleAutomation htmlWindow = null;
                    try {
                        //IHTMLWindow2
                        htmlWindow = pVarResult.getAutomation();
                        pVarResult.dispose();
                        int[] evaluateID = htmlWindow.getIDsOfNames(new String[] { "evaluate" });
                        if (evaluateID == null)
                            return;
                        String expression = "5+Math.sin(9)";
                        Variant[] rgvarg = new Variant[] { new Variant(expression) };
                        pVarResult = htmlWindow.invoke(evaluateID[0], rgvarg, null);
                        if (pVarResult == null || pVarResult.getType() == 0)
                            return;
                        System.out.println(expression + " =" + pVarResult.getString());
                    } finally {
                        htmlWindow.dispose();
                    }
                } finally {
                    htmlDocument.dispose();
                }
            }
        });

        // Navigate to a web site
        int[] ids = webBrowser.getIDsOfNames(new String[] { "Navigate", "URL" });
        Variant[] rgvarg = new Variant[] { new Variant(
                "http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet187.html") };
        int[] rgdispidNamedArgs = new int[] { ids[1] };
        webBrowser.invoke(ids[0], rgvarg, rgdispidNamedArgs);

        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        //Remember to release OleAutomation Object
        webBrowser.dispose();
        display.dispose();

    }
}