SCViewer/com.minres.scviewer.e4.appl.../src/com/minres/scviewer/e4/application/E4LifeCycle.java

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/*******************************************************************************
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* Copyright (c) 2015 MINRES Technologies GmbH 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:
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* MINRES Technologies GmbH - initial API and implementation
*******************************************************************************/
package com.minres.scviewer.e4.application;
import java.io.File;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
import org.eclipse.e4.core.contexts.ContextInjectionFactory;
import org.eclipse.e4.core.contexts.IEclipseContext;
import org.eclipse.e4.core.services.events.IEventBroker;
import org.eclipse.e4.ui.model.application.MApplication;
import org.eclipse.e4.ui.model.application.ui.basic.MPart;
import org.eclipse.e4.ui.model.application.ui.basic.MPartStack;
import org.eclipse.e4.ui.workbench.UIEvents;
import org.eclipse.e4.ui.workbench.lifecycle.PostContextCreate;
import org.eclipse.e4.ui.workbench.lifecycle.PreSave;
import org.eclipse.e4.ui.workbench.lifecycle.ProcessAdditions;
import org.eclipse.e4.ui.workbench.lifecycle.ProcessRemovals;
import org.eclipse.e4.ui.workbench.modeling.EModelService;
import org.eclipse.e4.ui.workbench.modeling.EPartService;
import org.eclipse.e4.ui.workbench.modeling.EPartService.PartState;
import org.eclipse.equinox.app.IApplicationContext;
import org.osgi.service.event.Event;
import org.osgi.service.event.EventHandler;
/**
* This implementation contains e4 LifeCycle annotated methods.<br />
* There is a corresponding entry in <em>plugin.xml</em> (under the
* <em>org.eclipse.core.runtime.products' extension point</em>) that references
* this class.
**/
@SuppressWarnings("restriction")
public class E4LifeCycle {
/**
* Post construct.
*
* @param eventBroker the event broker
*/
@PostConstruct
private static void postConstruct(final IEventBroker eventBroker) {
}
/**
* Post context create. Open a database if given on command line using the OpenViewHandler
*
* @param appContext the app context
* @param eventBroker the event broker
*/
@PostContextCreate
void postContextCreate(IApplicationContext appContext, final IEventBroker eventBroker) {
final String[] args = (String[])appContext.getArguments().get(IApplicationContext.APPLICATION_ARGS);
// react on the first view being created, at that time the UI is available
eventBroker.subscribe(UIEvents.UILifeCycle.ACTIVATE, new EventHandler() {
@Override
public void handleEvent(Event event) {
MPart part = (MPart) event.getProperty("ChangedElement");
if(part!=null){
IEclipseContext ctx = part.getContext();
OpenViewHandler openViewHandler= new OpenViewHandler();
ContextInjectionFactory.inject(openViewHandler, ctx);
eventBroker.unsubscribe(this);
for(String name:args){
if(new File(name).exists()) openViewHandler.openViewForFile(name);
}
}
}
});
}
/**
* Pre save.
*
* @param workbenchContext the workbench context
*/
@PreSave
void preSave(IEclipseContext workbenchContext) {
}
/**
* Process additions.
*
* @param workbenchContext the workbench context
*/
@ProcessAdditions
void processAdditions(IEclipseContext workbenchContext) {
}
/**
* Process removals.
*
* @param workbenchContext the workbench context
*/
@ProcessRemovals
void processRemovals(IEclipseContext workbenchContext) {
}
/**
* Join.
*
* @param tokens the tokens
* @return the string
*/
String join(String[] tokens){
StringBuilder sb = new StringBuilder();
boolean first=true;
for(String token:tokens){
if(!first) sb.append(",");
sb.append(token);
first=false;
}
return sb.toString();
}
/**
* The Class OpenViewHandler.
*/
private class OpenViewHandler {
/** The app. */
@Inject MApplication app;
/** The model service. */
@Inject EModelService modelService;
/** The part service. */
@Inject EPartService partService;
/**
* Open view for file.
*
* @param name the name
*/
public void openViewForFile(String name){
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File file = new File(name);
MPart part = partService.createPart("com.minres.scviewer.e4.application.partdescriptor.waveformviewer");
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part.setLabel(file.getName());
MPartStack partStack = (MPartStack)modelService.find("org.eclipse.editorss", app);
partStack.getChildren().add(part);
partService.showPart(part, PartState.ACTIVATE);
IEclipseContext ctx=part.getContext();
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ctx.modify("input", file);
ctx.declareModifiable("input");
}
}
}