RunActionDialog.java

package com.netifera.platform.ui.spaces.actions;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.jface.dialogs.PopupDialog;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.forms.FormColors;
import org.eclipse.ui.forms.HyperlinkSettings;
import org.eclipse.ui.forms.events.HyperlinkAdapter;
import org.eclipse.ui.forms.events.HyperlinkEvent;
import org.eclipse.ui.forms.widgets.Form;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.ImageHyperlink;

import com.netifera.platform.api.tools.IOption;
import com.netifera.platform.tools.options.BooleanOption;
import com.netifera.platform.tools.options.GenericOption;
import com.netifera.platform.tools.options.IntegerOption;
import com.netifera.platform.tools.options.IterableOption;
import com.netifera.platform.tools.options.Option;
import com.netifera.platform.tools.options.StringOption;
import com.netifera.platform.ui.api.actions.ISpaceAction;
import com.netifera.platform.ui.internal.spaces.Activator;
import com.netifera.platform.ui.spaces.actions.options.BooleanOptionWidget;
import com.netifera.platform.ui.spaces.actions.options.GenericOptionWidget;
import com.netifera.platform.ui.spaces.actions.options.IntegerOptionWidget;
import com.netifera.platform.ui.spaces.actions.options.IterableOptionWidget;
import com.netifera.platform.ui.spaces.actions.options.OptionWidget;
import com.netifera.platform.ui.spaces.actions.options.StringOptionWidget;

public class RunActionDialog extends PopupDialog {
	
	private FormToolkit toolkit;
	private Form form;
	private Composite body;

	private final ISpaceAction action;
	private final List<OptionWidget> widgets = new ArrayList<OptionWidget>();
	
	private Image runImage = Activator.getDefault().getImageCache().get("icons/run_exc_16x16.png");

	private ImageHyperlink runLink;
	
	
	public RunActionDialog(Shell parent, Point location, ISpaceAction action) {
		super(parent, PopupDialog.INFOPOPUP_SHELLSTYLE | SWT.ON_TOP, true, false, false, false, false, /*action.getText()*/ null, "Press ESC to exit");
		this.action = action;
		
		create();
		getShell().setLocation(location);

		setHeader();
		addOptions();
	}
	
	@Override
	protected Control createDialogArea(Composite parent) {
		Composite composite = (Composite) super.createDialogArea(parent);

		composite.setLayout(new FillLayout());
		
		toolkit = new FormToolkit(composite.getDisplay());
		form = toolkit.createForm(composite);
		
		FormColors colors = toolkit.getColors();
		colors.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_INFO_BACKGROUND));

		toolkit.getHyperlinkGroup().setHyperlinkUnderlineMode(HyperlinkSettings.UNDERLINE_HOVER);
		
//		toolkit.getHyperlinkGroup().setActiveForeground(Display.getCurrent().getSystemColor(SWT.COLOR_BLUE));
//		toolkit.getHyperlinkGroup().setForeground(colors.getColor("Categorytitle"));
		toolkit.getHyperlinkGroup().setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_INFO_BACKGROUND));
		
		body = form.getBody();
		body.setLayout(new GridLayout());
//		body.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_INFO_BACKGROUND));
		toolkit.paintBordersFor(body);

		return composite;
	}

	private void setHeader() {
		form.setFont(JFaceResources.getDialogFont());
		
//		Image icon = action.getImageDescriptor()...;
//		form.setImage(icon);
		
		form.setText(action.getText());
		
		form.setSeparatorVisible(true);
		
		toolkit.decorateFormHeading(form);
	}

	private void updateRunButton() {
		for (OptionWidget widget: widgets)
			if (!widget.isValid()) {
				runLink.setVisible(false);
				runLink.setEnabled(false);
				return;
			}
		runLink.setEnabled(true);
		runLink.setVisible(true);
	}
	
	private void addOptions() {
		for(IOption op : action.getConfiguration().getOptions()) {
			if(op instanceof Option && ((Option)op).isFixed())
				continue;
			if(op instanceof StringOption) {
				StringOptionWidget widget = new StringOptionWidget(body, toolkit, (StringOption)op) {
					protected void accept() {
						safeRun();
					}
					protected void modified() {
						updateRunButton();
					}
				};
				widgets.add(widget);
			} else if(op instanceof IntegerOption) {
				IntegerOptionWidget widget = new IntegerOptionWidget(body, toolkit, (IntegerOption)op) {
					protected void accept() {
						safeRun();
					}
					protected void modified() {
						updateRunButton();
					}
				};
				widgets.add(widget);
			} else if(op instanceof BooleanOption) {
				widgets.add(new BooleanOptionWidget(body, toolkit, (BooleanOption)op));
			} else if(op instanceof GenericOption) {
				widgets.add(new GenericOptionWidget(body, toolkit, (GenericOption)op, action.getSpace()));
			} else if(op instanceof IterableOption) {
				widgets.add(new IterableOptionWidget(body, toolkit, (IterableOption)op));
			} else {
				//FIXME
				System.err.println("UI cannot handle option "+op);
			}
		}

		runLink = toolkit.createImageHyperlink(body, SWT.NONE);
//		runLink.setFont(JFaceResources.getHeaderFont());
		runLink.setImage(runImage);
		runLink.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, true, true));
		runLink.setText("Run");
		updateRunButton();

		runLink.addHyperlinkListener(new HyperlinkAdapter() {
			@Override
			public void linkActivated(HyperlinkEvent e) {
				safeRun();
			}
		});
	}

	private void safeRun() {
		if (!runLink.isEnabled())
			return;
		
		try {
			doRun();
		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}
	
	private void doRun() {
		for(OptionWidget optionWidget : widgets)
			optionWidget.setOptionValue();
		
		action.run();
		close();
	}
	
	@Override
	protected void adjustBounds() {
		getShell().pack();
//		Point size = getShell().getSize();
//		size.x = ToolPanel.PANEL_PIXEL_WIDTH;
//		getShell().setSize(size);
	}
	
	@Override
	protected Control getFocusControl() {
		return runLink;
	}

	@Override
	protected void handleShellCloseEvent() {
		super.handleShellCloseEvent();
		toolkit.dispose();
	}
}