PrinterHtmlShell.java

/*
  PrinterHtmlShell.java

  (c) 2014 Ed Swartz

  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
 */
package v9t9.gui.client.swt.shells;

import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.custom.CTabItem;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

import v9t9.common.dsr.IPrinterHtmlListener;

/**
 * @author ejs
 *
 */
public class PrinterHtmlShell implements IPrinterHtmlListener {

	private Shell shell; 
	private CTabFolder tabFolder;
	
	// all for the current page; old pages are abandoned
	private Browser browser;

	/**
	 * 
	 */
	public PrinterHtmlShell() {
		shell = new Shell(SWT.TOOL | SWT.RESIZE);
		
		GridLayoutFactory.fillDefaults().applyTo(shell);
		
		tabFolder = new CTabFolder(shell, SWT.TOP);
		GridDataFactory.fillDefaults().grab(true, true).applyTo(shell);
		
		shell.setText("Printer Output");
		shell.setSize(800, 1100);
	}
	
	/* (non-Javadoc)
	 * @see v9t9.common.dsr.IRS232HtmlListener#updated(java.lang.String)
	 */
	@Override
	public void updated(final String html) {
		if (browser == null)
			return;
		
		Display.getDefault().asyncExec(new Runnable() {
			public void run() {
				if (browser == null || browser.isDisposed())
					return;
				browser.setText(html, true);
			}
		});
	}

	/* (non-Javadoc)
	 * @see v9t9.common.dsr.IRS232HtmlListener#newPage()
	 */
	@Override
	public void newPage() {
		Display.getDefault().syncExec(new Runnable() {
			public void run() {
				
				if (browser == null)
					shell.open();
				
				CTabItem item = new CTabItem(tabFolder, SWT.NONE);
				
				browser = new Browser(tabFolder, SWT.BORDER);
				item.setControl(browser);
				
				tabFolder.setSelection(item);
			}
		});
	}

}