org.eclipse.mylyn.tasks.bugs/src/org/eclipse/mylyn/internal/tasks/bugs/wizards/SelectSupportElementPage.java - mylyn/org.eclipse.mylyn.tasks - Git at Google

 /*******************************************************************************
  * 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.provisional.tasks.bugs.IProvider;
 import org.eclipse.mylyn.internal.tasks.bugs.AbstractSupportElement;
 import org.eclipse.mylyn.internal.tasks.bugs.SupportCategory;
 import org.eclipse.mylyn.internal.tasks.bugs.SupportProduct;
 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;
 	}

 	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;

 		if (input instanceof IProvider) {
 			setTitle("Support Provider");
 			setMessage("Select a support provider from the list.");
 		} else {
 			setTitle("Supported Product");
 			setMessage("Select a supported product from the list.");
 		}
 	}

 	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();
 				Object object = selection.getFirstElement();
 				if (object instanceof AbstractSupportElement) {
 					selectedElement = (AbstractSupportElement) object;
 				} else {
 					selectedElement = null;
 				}
 				updatePageStatus();
 			}
 		});
 		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);

 		setPageComplete(false);
 		setControl(container);
 		Dialog.applyDialogFont(container);
 	}

 	@Override
 	public void dispose() {
 		if (imageRegistry != null) {
 			imageRegistry.dispose();
 		}
 		super.dispose();
 	}

 	public AbstractSupportElement getSelectedElement() {
 		return selectedElement;
 	}

 	private void updatePageStatus() {
 		if (selectedElement instanceof SupportProvider) {
 			if (contentProvider.getElements(selectedElement).length > 0) {
 				setErrorMessage(null);
 				setPageComplete(true);
 			} else {
 				setErrorMessage("The selected provider does not specify supported products.");
 				setPageComplete(false);
 			}
 		} else if (selectedElement instanceof SupportProduct) {
 			setErrorMessage(null);
 			setPageComplete(true);
 		}
 	}

 	@Override
 	public IWizardPage getNextPage() {
 		if (selectedElement instanceof SupportProvider) {
 			SelectSupportElementPage page = new SelectSupportElementPage(selectedElement.getId(), contentProvider);
 			page.setInput(selectedElement);
 			page.setWizard(getWizard());
 			return page;
 		}
 		return null;
 	}
 }
	/*******************************************************************************
	* 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.provisional.tasks.bugs.IProvider;
	import org.eclipse.mylyn.internal.tasks.bugs.AbstractSupportElement;
	import org.eclipse.mylyn.internal.tasks.bugs.SupportCategory;
	import org.eclipse.mylyn.internal.tasks.bugs.SupportProduct;
	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;
	}

	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;

	if (input instanceof IProvider) {
	setTitle("Support Provider");
	setMessage("Select a support provider from the list.");
	} else {
	setTitle("Supported Product");
	setMessage("Select a supported product from the list.");
	}
	}

	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();
	Object object = selection.getFirstElement();
	if (object instanceof AbstractSupportElement) {
	selectedElement = (AbstractSupportElement) object;
	} else {
	selectedElement = null;
	}
	updatePageStatus();
	}
	});
	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);

	setPageComplete(false);
	setControl(container);
	Dialog.applyDialogFont(container);
	}

	@Override
	public void dispose() {
	if (imageRegistry != null) {
	imageRegistry.dispose();
	}
	super.dispose();
	}

	public AbstractSupportElement getSelectedElement() {
	return selectedElement;
	}

	private void updatePageStatus() {
	if (selectedElement instanceof SupportProvider) {
	if (contentProvider.getElements(selectedElement).length > 0) {
	setErrorMessage(null);
	setPageComplete(true);
	} else {
	setErrorMessage("The selected provider does not specify supported products.");
	setPageComplete(false);
	}
	} else if (selectedElement instanceof SupportProduct) {
	setErrorMessage(null);
	setPageComplete(true);
	}
	}

	@Override
	public IWizardPage getNextPage() {
	if (selectedElement instanceof SupportProvider) {
	SelectSupportElementPage page = new SelectSupportElementPage(selectedElement.getId(), contentProvider);
	page.setInput(selectedElement);
	page.setWizard(getWizard());
	return page;
	}
	return null;
	}
	}