/*******************************************************************************
* Copyright (c) 2004, 2008 Tasktop Technologies 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:
* Tasktop Technologies - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.tasks.bugs.wizards;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.ToolBarManager;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.viewers.IOpenListener;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.OpenEvent;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.jface.wizard.IWizardPage;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.mylyn.internal.commons.ui.ControlListItem;
import org.eclipse.mylyn.internal.commons.ui.ControlListViewer;
import org.eclipse.mylyn.internal.commons.ui.NotificationPopupColors;
import org.eclipse.mylyn.internal.provisional.commons.ui.CommonFonts;
import org.eclipse.mylyn.internal.provisional.commons.ui.CommonImages;
import org.eclipse.mylyn.internal.provisional.commons.ui.GradientCanvas;
import org.eclipse.mylyn.internal.provisional.commons.ui.WorkbenchUtil;
import org.eclipse.mylyn.internal.tasks.bugs.AbstractSupportElement;
import org.eclipse.mylyn.internal.tasks.bugs.SupportCategory;
import org.eclipse.mylyn.internal.tasks.bugs.SupportProvider;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.ToolBar;
import org.eclipse.ui.browser.IWorkbenchBrowserSupport;
/**
* @author Steffen Pingel
*/
@SuppressWarnings("restriction")
public class SelectSupportElementPage extends WizardPage {
public class SupportElementViewer extends ControlListViewer {
public SupportElementViewer(Composite parent, int style) {
super(parent, style);
// ignore
}
@Override
protected ControlListItem doCreateItem(Composite parent, Object element) {
if (element instanceof SupportCategory) {
return new CategoryItem(parent, SWT.NONE, element);
}
return new SupportElementItem(parent, SWT.NONE, element);
}
}
private class CategoryItem extends ControlListItem {
private Label label;
public CategoryItem(Composite parent, int style, Object element) {
super(parent, style, element);
}
@Override
protected void createContent() {
FillLayout layout = new FillLayout();
setLayout(layout);
GradientCanvas canvas = new GradientCanvas(this, SWT.NONE);
NotificationPopupColors color = new NotificationPopupColors(getDisplay(), JFaceResources.getResources());
canvas.setBackgroundGradient(new Color[] { color.getGradientBegin(), color.getGradientEnd() },
new int[] { 100 }, true);
canvas.setLayout(new GridLayout(1, false));
label = new Label(canvas, SWT.NONE);
label.setFont(JFaceResources.getHeaderFont());
label.setBackground(null);
canvas.setSize(canvas.computeSize(SWT.DEFAULT, SWT.DEFAULT));
refresh();
}
@Override
protected void refresh() {
AbstractSupportElement data = (AbstractSupportElement) getData();
label.setText(data.getName());
}
@Override
public void setForeground(Color color) {
// ignore
}
@Override
public void setBackground(Color color) {
// ignore
}
}
private class SupportElementItem extends ControlListItem {
private ToolBar toolBar;
private Label titleLabel;
private Label iconLabel;
private Label descriptionLabel;
private ToolBarManager toolBarManager;
public SupportElementItem(Composite parent, int style, Object element) {
super(parent, style, element);
}
@Override
protected void createContent() {
FormLayout layout = new FormLayout();
layout.marginHeight = 3;
layout.marginWidth = 3;
setLayout(layout);
iconLabel = new Label(this, SWT.NONE);
FormData fd = new FormData();
fd.left = new FormAttachment(0);
iconLabel.setLayoutData(fd);
titleLabel = new Label(this, SWT.NONE);
titleLabel.setFont(CommonFonts.BOLD);
fd = new FormData();
fd.left = new FormAttachment(iconLabel, 5);
titleLabel.setLayoutData(fd);
descriptionLabel = new Label(this, SWT.WRAP);
fd = new FormData();
fd.top = new FormAttachment(titleLabel, 5);
fd.left = new FormAttachment(iconLabel, 5);
descriptionLabel.setLayoutData(fd);
toolBarManager = new ToolBarManager(SWT.FLAT);
toolBar = toolBarManager.createControl(this);
fd = new FormData();
fd.right = new FormAttachment(100);
toolBar.setLayoutData(fd);
refresh();
}
@Override
public void dispose() {
super.dispose();
toolBarManager.dispose();
}
@Override
public void setForeground(Color color) {
super.setForeground(color);
if (isSelected()) {
descriptionLabel.setForeground(getDisplay().getSystemColor(SWT.COLOR_WIDGET_LIGHT_SHADOW));
} else {
descriptionLabel.setForeground(getDisplay().getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW));
}
}
@Override
protected void refresh() {
AbstractSupportElement data = (AbstractSupportElement) getData();
iconLabel.setImage(getImage(data));
titleLabel.setText(data.getName());
descriptionLabel.setText(data.getDescription());
toolBarManager.removeAll();
final String url = data.getUrl();
if (url != null) {
Action action = new Action() {
@Override
public void run() {
WorkbenchUtil.openUrl(url, IWorkbenchBrowserSupport.AS_EXTERNAL);
}
};
action.setImageDescriptor(CommonImages.QUESTION);
toolBarManager.add(action);
}
toolBarManager.update(false);
}
@Override
public void setHot(boolean hot) {
super.setHot(hot);
updateToolBar();
}
@Override
public void setSelected(boolean select) {
super.setSelected(select);
updateToolBar();
}
private void updateToolBar() {
if (toolBar != null) {
toolBar.setVisible(isHot() || isSelected());
}
}
}
private static final int TABLE_HEIGHT = 200;
private AbstractSupportElement selectedElement;
private ImageRegistry imageRegistry;
private final IStructuredContentProvider contentProvider;
private Object input;
public SelectSupportElementPage(String pageName, IStructuredContentProvider contentProvider) {
super(pageName);
this.contentProvider = contentProvider;
setTitle(Messages.SelectFeaturePage_SELECT_FEATURE);
setMessage("Select a provider or product from the list.");
}
public Image getImage(AbstractSupportElement data) {
if (imageRegistry == null) {
imageRegistry = new ImageRegistry(getShell().getDisplay());
}
Image image = imageRegistry.get(data.getId());
if (image == null && data.getIcon() != null) {
imageRegistry.put(data.getId(), data.getIcon());
image = imageRegistry.get(data.getId());
}
return image;
}
public void setInput(Object input) {
this.input = input;
}
public void createControl(Composite parent) {
Composite container = new Composite(parent, SWT.NULL);
GridLayout layout = new GridLayout(1, true);
container.setLayout(layout);
ControlListViewer viewer = new SupportElementViewer(container, SWT.SINGLE | SWT.BORDER | SWT.V_SCROLL);
GridDataFactory.fillDefaults().grab(true, true).hint(SWT.DEFAULT, TABLE_HEIGHT).applyTo(viewer.getControl());
viewer.setContentProvider(contentProvider);
viewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
IStructuredSelection selection = (IStructuredSelection) event.getSelection();
if (!selection.isEmpty() && selection.getFirstElement() instanceof AbstractSupportElement) {
selectedElement = (AbstractSupportElement) selection.getFirstElement();
} else {
selectedElement = null;
}
setPageComplete(selectedElement != null);
}
});
viewer.addOpenListener(new IOpenListener() {
public void open(OpenEvent event) {
if (getWizard().performFinish()) {
((WizardDialog) getContainer()).close();
}
}
});
viewer.setSorter(new ViewerSorter() {
@SuppressWarnings("unchecked")
@Override
public int compare(Viewer viewer, Object o1, Object o2) {
int cat1 = category(o1);
int cat2 = category(o2);
if (cat1 != cat2) {
return cat1 - cat2;
}
if (o1 instanceof AbstractSupportElement && o2 instanceof AbstractSupportElement) {
return getComparator().compare(((AbstractSupportElement) o1).getName(),
((AbstractSupportElement) o2).getName());
}
return super.compare(viewer, o1, o2);
}
@Override
public int category(Object element) {
if (element instanceof SupportCategory) {
return ((SupportCategory) element).getWeight() * 2;
} else if (element instanceof SupportProvider) {
return ((SupportProvider) element).getCategory().getWeight() * 2 + 1;
}
return super.category(element);
}
});
viewer.setInput(input);
setControl(container);
Dialog.applyDialogFont(container);
}
private boolean requiresSelection(AbstractSupportElement selectedElement) {
return contentProvider.getElements(selectedElement).length > 0;
}
@Override
public void dispose() {
if (imageRegistry != null) {
imageRegistry.dispose();
}
super.dispose();
}
public AbstractSupportElement getSelectedElement() {
return selectedElement;
}
@Override
public boolean canFlipToNextPage() {
return selectedElement != null && requiresSelection(selectedElement);
}
@Override
public IWizardPage getNextPage() {
if (canFlipToNextPage()) {
SelectSupportElementPage page = new SelectSupportElementPage(selectedElement.getId(), contentProvider);
page.setInput(selectedElement);
page.setWizard(getWizard());
return page;
}
return null;
}
}
