/*******************************************************************************
 * 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 DWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 * 
 * @since 3.0
 */

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

import tango.io.Console;
import dwt.dwthelper.utils;

import dwt.DWT;
import dwt.DWTError;
import dwt.DWTException;

import dwt.browser.Browser;
import dwt.browser.ProgressEvent;
import dwt.browser.ProgressListener;
import dwt.browser.StatusTextEvent;
import dwt.browser.StatusTextListener;
import dwt.browser.LocationEvent;
import dwt.browser.LocationListener;

import dwt.layout.GridLayout;
import dwt.layout.GridData;

import dwt.widgets.Shell;
import dwt.widgets.Display;
import dwt.widgets.ToolBar;
import dwt.widgets.ToolItem;
import dwt.widgets.Label;
import dwt.widgets.Text;
import dwt.widgets.ProgressBar;
import dwt.widgets.Listener;
import dwt.widgets.Event;

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

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

	Browser browser;
	try {
		browser = new Browser(shell, DWT.NONE);
	} catch (DWTError e) {
		Cout ("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, DWT.NONE);
	data = new GridData(GridData.FILL_HORIZONTAL);
	data.horizontalSpan = 2;
	status.setLayoutData(data);

	ProgressBar progressBar = new ProgressBar(shell, DWT.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(DWT.Selection, listener);
	itemForward.addListener(DWT.Selection, listener);
	itemStop.addListener(DWT.Selection, listener);
	itemRefresh.addListener(DWT.Selection, listener);
	itemGo.addListener(DWT.Selection, listener);
	location.addListener(DWT.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();
}