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/*******************************************************************************
* Copyright (c) 2010 BestSolution.at 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:
* Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation
* Jonas Helming <jhelming@eclipsesource.com>
******************************************************************************/
package org.eclipse.e4.tools.compat.parts;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.e4.core.contexts.ContextInjectionFactory;
import org.eclipse.e4.core.contexts.IEclipseContext;
import org.eclipse.e4.tools.compat.internal.CopyAction;
import org.eclipse.e4.tools.compat.internal.CutAction;
import org.eclipse.e4.tools.compat.internal.PartHelper;
import org.eclipse.e4.tools.compat.internal.PasteAction;
import org.eclipse.e4.tools.services.IClipboardService;
import org.eclipse.e4.tools.services.IDirtyProviderService;
import org.eclipse.e4.ui.di.Focus;
import org.eclipse.e4.ui.di.Persist;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorSite;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.actions.ActionFactory;
import org.eclipse.ui.part.EditorPart;
/**
* This class provides an adapter enabling to plug editors, which are
* implemented following the e4 programming model into a 3.x workbench. This
* class is supposed to be sub classed by clients.
*
* @author Jonas
*
* @param <C>
*/
public abstract class DIEditorPart<C> extends EditorPart implements
IDirtyProviderService {
private IEclipseContext context;
private C component;
private Class<C> clazz;
private boolean dirtyState;
private int features;
protected static final int COPY = 1;
protected static final int PASTE = 1 << 1;
protected static final int CUT = 1 << 2;
public DIEditorPart(Class<C> clazz) {
this(clazz, SWT.NONE);
}
public DIEditorPart(Class<C> clazz, int features) {
this.clazz = clazz;
this.features = features;
}
@Override
public void doSave(IProgressMonitor monitor) {
IEclipseContext saveContext = context.createChild();
ContextInjectionFactory.invoke(component, Persist.class, saveContext);
saveContext.dispose();
}
@Override
public void doSaveAs() {
}
@Override
public boolean isSaveAsAllowed() {
return false;
}
@Override
public void init(IEditorSite site, IEditorInput input)
throws PartInitException {
setSite(site);
setInput(input);
context = PartHelper.createPartContext(this);
context.declareModifiable(IEditorInput.class);
context.declareModifiable(IEditorPart.class);
context.declareModifiable(IDirtyProviderService.class);
context.set(IEditorPart.class, this);
context.set(IDirtyProviderService.class, this);
context.set(IEditorInput.class, input);
}
@Override
public void createPartControl(Composite parent) {
component = PartHelper.createComponent(parent, context, clazz, this);
makeActions();
}
protected IEclipseContext getContext() {
return context;
}
public C getComponent() {
return component;
}
protected void makeActions() {
if ((features & COPY) == COPY) {
IClipboardService clipboard = context.get(IClipboardService.class);
getEditorSite().getActionBars().setGlobalActionHandler(
ActionFactory.COPY.getId(), new CopyAction(clipboard));
}
if ((features & PASTE) == PASTE) {
IClipboardService clipboard = context.get(IClipboardService.class);
getEditorSite().getActionBars().setGlobalActionHandler(
ActionFactory.PASTE.getId(), new PasteAction(clipboard));
}
if ((features & CUT) == CUT) {
IClipboardService clipboard = context.get(IClipboardService.class);
getEditorSite().getActionBars().setGlobalActionHandler(
ActionFactory.CUT.getId(), new CutAction(clipboard));
}
}
public void setDirtyState(boolean dirtyState) {
if (dirtyState != this.dirtyState) {
this.dirtyState = dirtyState;
firePropertyChange(PROP_DIRTY);
}
}
@Override
public boolean isDirty() {
return dirtyState;
}
@Override
public void setFocus() {
ContextInjectionFactory.invoke(component, Focus.class, context);
}
@Override
public void dispose() {
IEclipseContext parentContext = (IEclipseContext) getSite().getService(
IEclipseContext.class);
// Check if running in 3.x, otherwise there was no dedicated context
// created
if (parentContext
.get("org.eclipse.e4.ui.workbench.IPresentationEngine") != null) {
context.dispose();
context = null;
}
super.dispose();
}
}
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