FileExecutorContentHandler.java

/*
  FileExecutorContentHandler.java

  (c) 2013 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.handlers;

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.widgets.Shell;

import v9t9.common.client.IEmulatorContentHandler;
import v9t9.common.events.NotifyException;
import v9t9.common.files.EmulatedDiskContentSource;
import v9t9.common.files.IDiskImage;
import v9t9.common.files.IDiskImageMapper;
import v9t9.common.files.IFileExecutor;
import v9t9.common.files.IFilesInDirectoryMapper;
import v9t9.common.machine.IMachine;
import ejs.base.properties.IProperty;

/**
 * @author ejs
 *
 */
public class FileExecutorContentHandler implements IEmulatorContentHandler {

	private EmulatedDiskContentSource diskSource;
	private IFileExecutor exec;
	private IMachine machine;
	private Shell shell;

	/**
	 * @param diskSource
	 * @param iFileExecutor
	 */
	public FileExecutorContentHandler(Shell shell, 
			IMachine machine, 
			EmulatedDiskContentSource diskSource,
			IFileExecutor exec) {
		this.shell = shell;
		this.machine = machine;
		this.diskSource = diskSource;
		this.exec = exec;
	}

	/* (non-Javadoc)
	 * @see v9t9.common.client.IEmulatorContentHandler#getLabel()
	 */
	@Override
	public String getLabel() {
		return exec.getLabel();
	}

	/* (non-Javadoc)
	 * @see v9t9.common.client.IEmulatorContentHandler#getImage()
	 */
	@Override
	public ImageDescriptor getImage() {
		return null;
	}

	/* (non-Javadoc)
	 * @see v9t9.common.client.IEmulatorContentHandler#getDescription()
	 */
	@Override
	public String getDescription() {
		return exec.getDescription();
	}

	/* (non-Javadoc)
	 * @see v9t9.common.client.IEmulatorContentHandler#handleContent()
	 */
	@Override
	public void handleContent() throws NotifyException {
		// load disk
		
		if (diskSource.getContent() instanceof IDiskImage) {
			IDiskImageMapper imageMapper = machine.getEmulatedFileHandler().getDiskImageMapper();
			
			IProperty enabledProperty = imageMapper.getImageSupportProperty();
			if (!enabledProperty.getBoolean()) {
				boolean go = MessageDialog.openQuestion(shell, "Enable Disk Image?", 
						"Disk image support is not enabled.\n\n"+
						"To use this disk, V9t9 needs to turn on that support and reset the emulator.\n\n"+
								"Continue?");
				if (!go)
					return;
				
				enabledProperty.setBoolean(true);
				machine.reset();
			}
		} else {
			IFilesInDirectoryMapper fiadMapper = machine.getEmulatedFileHandler().getFilesInDirectoryMapper();
			IProperty enabledProperty = fiadMapper.getDirectorySupportProperty();

			if (!enabledProperty.getBoolean()) {
				boolean go = MessageDialog.openQuestion(shell, "Enable Files in Directories?", 
						"Support for files in a directory is not enabled.\n\n"+
						"To use this disk, V9t9 needs to turn on that support.\n\n"+
								"Continue?");
				if (!go)
					return;
				
				enabledProperty.setBoolean(true);
				machine.reset();
			}

		}

		// select disk
		diskSource.getDiskImageProperty().setString(diskSource.getContent().getPath());
		
		// do the action
		exec.run(machine);
	}

	/* (non-Javadoc)
	 * @see v9t9.common.client.IEmulatorContentHandler#requireConfirmation()
	 */
	@Override
	public boolean requireConfirmation() {
		return true;
	}

}