/*******************************************************************************
 * Copyright (c) 2000, 2004 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:
 *     IBM Corporation - initial API and implementation
 * Ported to the D Programming Language:
 *     by John Reimer
 *******************************************************************************/
module Snippet128;

/*
 * Browser example snippet: bring up a browser
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 * 
 * @since 3.0
 */

version(linux) 
{
    version(build) 
    {
    pragma(link,"stdc++");
    pragma(link,"xpcomglue");
    }
}

import java.lang.all;

import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTError;
import org.eclipse.swt.SWTException;

import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.browser.ProgressEvent;
import org.eclipse.swt.browser.ProgressListener;
import org.eclipse.swt.browser.StatusTextEvent;
import org.eclipse.swt.browser.StatusTextListener;
import org.eclipse.swt.browser.LocationEvent;
import org.eclipse.swt.browser.LocationListener;

import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.ToolBar;
import org.eclipse.swt.widgets.ToolItem;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Event;

public static void main(String [] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    GridLayout gridLayout = new GridLayout();
    gridLayout.numColumns = 3;
    shell.setLayout(gridLayout);
    ToolBar toolbar = new ToolBar(shell, SWT.NONE);
    ToolItem itemBack = new ToolItem(toolbar, SWT.PUSH);
    itemBack.setText("Back");
    ToolItem itemForward = new ToolItem(toolbar, SWT.PUSH);
    itemForward.setText("Forward");
    ToolItem itemStop = new ToolItem(toolbar, SWT.PUSH);
    itemStop.setText("Stop");
    ToolItem itemRefresh = new ToolItem(toolbar, SWT.PUSH);
    itemRefresh.setText("Refresh");
    ToolItem itemGo = new ToolItem(toolbar, SWT.PUSH);
    itemGo.setText("Go");
    
    GridData data = new GridData();
    data.horizontalSpan = 3;
    toolbar.setLayoutData(data);

    Label labelAddress = new Label(shell, SWT.NONE);
    labelAddress.setText("Address");
        
    Text location = new Text(shell, SWT.BORDER);
    data = new GridData();
    data.horizontalAlignment = GridData.FILL;
    data.horizontalSpan = 2;
    data.grabExcessHorizontalSpace = true;
    location.setLayoutData(data);

    Browser browser;
    try {
        browser = new Browser(shell, SWT.NONE);
    } catch (SWTError e) {
        getDwtLogger().error ( __FILE__, __LINE__, "Could not instantiate Browser: " ~ e.getMessage());
        return;
    }
    data = new GridData();
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.FILL;
    data.horizontalSpan = 3;
    data.grabExcessHorizontalSpace = true;
    data.grabExcessVerticalSpace = true;
    browser.setLayoutData(data);

    Label status = new Label(shell, SWT.NONE);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.horizontalSpan = 2;
    status.setLayoutData(data);

    ProgressBar progressBar = new ProgressBar(shell, SWT.NONE);
    data = new GridData();
    data.horizontalAlignment = GridData.END;
    progressBar.setLayoutData(data);

    /* event handling */
    Listener listener = new class() Listener {
        public void handleEvent(Event event) {
            ToolItem item = cast(ToolItem)event.widget;
            String string = item.getText();
            if (string.equals("Back")) browser.back(); 
            else if (string.equals("Forward")) browser.forward();
            else if (string.equals("Stop")) browser.stop();
            else if (string.equals("Refresh")) browser.refresh();
            else if (string.equals("Go")) browser.setUrl(location.getText());
       }
    };
    browser.addProgressListener(new class() ProgressListener {
        public void changed(ProgressEvent event) {
                if (event.total == 0) return;                            
                int ratio = event.current * 100 / event.total;
                progressBar.setSelection(ratio);
        }
        public void completed(ProgressEvent event) {
            progressBar.setSelection(0);
        }
    });
    browser.addStatusTextListener(new class() StatusTextListener {
        public void changed(StatusTextEvent event) {
            status.setText(event.text); 
        }
    });
    browser.addLocationListener(new class() LocationListener {
        public void changed(LocationEvent event) {
            if (event.top) location.setText(event.location);
        }
        public void changing(LocationEvent event) {
        }
    });
    itemBack.addListener(SWT.Selection, listener);
    itemForward.addListener(SWT.Selection, listener);
    itemStop.addListener(SWT.Selection, listener);
    itemRefresh.addListener(SWT.Selection, listener);
    itemGo.addListener(SWT.Selection, listener);
    location.addListener(SWT.DefaultSelection, new class() Listener {
        public void handleEvent(Event e) {
            browser.setUrl(location.getText());
        }
    });
        
    shell.open();
    browser.setUrl("http://eclipse.org");
        
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}