core/com.nokia.carbide.discovery.ui/src/com/nokia/carbide/internal/discovery/ui/editor/PortalEditor.java
/*
* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
package com.nokia.carbide.internal.discovery.ui.editor;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.graphics.Resource;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorSite;
import org.eclipse.ui.IPersistableElement;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.EditorPart;
import com.nokia.carbide.discovery.ui.Activator;
import com.nokia.carbide.discovery.ui.Messages;
import com.nokia.carbide.internal.discovery.ui.extension.IPortalPage;
import com.nokia.carbide.internal.discovery.ui.extension.IPortalPage.IActionBar;
import com.nokia.cpp.internal.api.utils.core.Pair;
import com.nokia.cpp.internal.api.utils.ui.WorkbenchUtils;
public class PortalEditor extends EditorPart {
private static final String ID = "com.nokia.carbide.discovery.ui.portalEditor"; //$NON-NLS-1$
private static final String CONTEXT_ID = ID + ".context"; //$NON-NLS-1$
private static IEditorInput input;
private List<IPortalPage> uninitializedPages;
private Composite backgroundParent;
private Image oldBGImg;
private List<Resource> resources;
private StackComposite stackComposite;
private Map<IPortalPage, Control> pageToControlMap;
private NavigationBar navigationBar;
public PortalEditor() {
resources = new ArrayList<Resource>();
loadPortalPages();
pageToControlMap = new HashMap<IPortalPage, Control>();
}
private void loadPortalPages() {
List<Pair<IPortalPage, Integer>> pageExtensions = new ArrayList<Pair<IPortalPage,Integer>>();
IConfigurationElement[] elements =
Platform.getExtensionRegistry().getConfigurationElementsFor(Activator.PLUGIN_ID + ".portalPage"); //$NON-NLS-1$
for (IConfigurationElement element : elements) {
try {
IPortalPage portalPage = (IPortalPage) element.createExecutableExtension("class"); //$NON-NLS-1$
String rankString = element.getAttribute("rank"); //$NON-NLS-1$
int rank = Integer.MAX_VALUE;
if (rankString != null) {
try {
rank = Integer.parseInt(rankString);
}
catch (NumberFormatException e) {
Activator.logError(MessageFormat.format("Could not get rank for portal page {0}",
portalPage.getClass().getName()), e);
}
}
pageExtensions.add(new Pair<IPortalPage, Integer>(portalPage, rank));
}
catch (CoreException e) {
Activator.logError(Messages.PortalEditor_PageLoadError, e);
}
}
Collections.sort(pageExtensions, new Comparator<Pair<IPortalPage, Integer>>() {
@Override
public int compare(Pair<IPortalPage, Integer> o1, Pair<IPortalPage, Integer> o2) {
return o1.second.compareTo(o2.second);
}
});
uninitializedPages = new ArrayList<IPortalPage>();
for (Pair<IPortalPage, Integer> pair : pageExtensions) {
uninitializedPages.add(pair.first);
}
}
@Override
public void doSave(IProgressMonitor monitor) {
}
@Override
public void doSaveAs() {
}
@Override
public boolean isDirty() {
return false;
}
@Override
public boolean isSaveAsAllowed() {
return false;
}
@Override
public void init(IEditorSite site, IEditorInput input) throws PartInitException {
setSite(site);
setInput(input);
}
@Override
public void createPartControl(final Composite parent) {
Composite body = createBody(parent);
navigationBar.initUI();
PlatformUI.getWorkbench().getHelpSystem().setHelp(body, CONTEXT_ID);
}
private Composite createBody(final Composite parent) {
// create background
backgroundParent = new Composite(parent, SWT.NONE);
applyBG(backgroundParent);
GridLayoutFactory.fillDefaults().applyTo(backgroundParent);
// create top naviation bar
navigationBar = createNavigationBar(backgroundParent);
// create stack composite
createStackComposite(backgroundParent, navigationBar);
return backgroundParent;
}
private void createStackComposite(Composite parent, NavigationBar bar) {
stackComposite = new StackComposite(parent, backgroundParent);
for (IPortalPage page : uninitializedPages) {
Control control = createPage(page);
pageToControlMap.put(page, control);
}
GridDataFactory.fillDefaults().grab(true, true).applyTo(stackComposite);
}
private Control createPage(IPortalPage page) {
Composite pageComposite = new SharedBackgroundComposite(stackComposite, backgroundParent);
GridLayoutFactory.fillDefaults().numColumns(2).spacing(20, 0).extendedMargins(20, 20, 20, 0).applyTo(pageComposite);
ActionUIUpdater updater = new ActionUIUpdater();
IActionBar[] commandBars = page.createCommandBars(this, updater);
if (commandBars.length > 0) {
Composite taskComposite = new SharedBackgroundComposite(pageComposite, backgroundParent);
GridLayoutFactory.fillDefaults().applyTo(taskComposite);
GridDataFactory.fillDefaults().grab(false, true).applyTo(taskComposite);
for (IActionBar actionBar : commandBars) {
Control control = createTaskBarControl(taskComposite, actionBar, updater);
GridDataFactory.fillDefaults().indent(0, 0).applyTo(control);
}
}
Composite pageControl = new RoundedCornerComposite(pageComposite, backgroundParent,
null, pageComposite.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
GridLayoutFactory.fillDefaults().margins(2, 2).applyTo(pageControl);
GridDataFactory.fillDefaults().grab(true, true).applyTo(pageControl);
Control control = page.createControl(pageControl, this);
GridDataFactory.fillDefaults().grab(true, true).applyTo(control);
return pageComposite;
}
private Control createTaskBarControl(Composite clientArea, IActionBar actionBar, ActionUIUpdater updater) {
TaskBar taskBar = new TaskBar(clientArea, this, actionBar);
updater.addTaskBar(taskBar);
return taskBar;
}
private NavigationBar createNavigationBar(Composite parent) {
NavigationBar bar = new NavigationBar(this, parent);
for (IPortalPage page : uninitializedPages) {
bar.addNavButton(bar, page);
}
return bar;
}
void showPage(IPortalPage page) {
if (uninitializedPages.contains(page)) {
uninitializedPages.remove(page);
page.init();
}
stackComposite.showControl(pageToControlMap.get(page));
}
private void applyBG(final Composite composite) {
composite.addListener(SWT.Resize, new Listener() {
@Override
public void handleEvent(Event event) {
Rectangle rect = composite.getClientArea();
Image newImage = new Image(composite.getDisplay(), rect.width, rect.height);
GC gc = new GC(newImage);
gc.setForeground(composite.getDisplay().getSystemColor(SWT.COLOR_BLACK));
gc.setBackground(composite.getDisplay().getSystemColor(SWT.COLOR_GRAY));
gc.fillGradientRectangle(0, 0, rect.width, rect.height, true);
gc.dispose();
composite.setBackgroundImage(newImage);
if (oldBGImg != null)
oldBGImg.dispose();
oldBGImg = newImage;
}
});
}
@Override
public void setFocus() {
}
public static void openPortal() {
try {
WorkbenchUtils.openEditor(getInput(), ID);
} catch (PartInitException e) {
Activator.logError(Messages.PortalEditor_PageOpenError, e);
}
}
private static IEditorInput getInput() {
if (input == null) {
input = new IEditorInput() {
@SuppressWarnings("rawtypes")
@Override
public Object getAdapter(Class adapter) {
return null;
}
@Override
public String getToolTipText() {
return getName();
}
@Override
public IPersistableElement getPersistable() {
return null;
}
@Override
public String getName() {
return Messages.PortalEditor_Name;
}
@Override
public ImageDescriptor getImageDescriptor() {
return null;
}
@Override
public boolean exists() {
return false;
}
};
}
return input;
}
Image createImage(ImageDescriptor desc) {
// Image image = new Image(Display.getCurrent(), desc.getImageData().scaledTo(16, 16));
Image image = desc.createImage();
resources.add(image);
return image;
}
Font createFont(String name, int height, int style) {
Font font = new Font(Display.getCurrent(), name, height, style);
resources.add(font);
return font;
}
@Override
public void dispose() {
super.dispose();
for (Resource resource : resources) {
resource.dispose();
}
if (oldBGImg != null)
oldBGImg.dispose();
}
public Composite getBackgroundParent() {
return backgroundParent;
}
}