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/*******************************************************************************
* Copyright (c) 2013 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.ui.handler;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExecutableExtension;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.tcf.te.runtime.interfaces.properties.IPropertiesContainer;
import org.eclipse.tcf.te.runtime.services.ServiceManager;
import org.eclipse.tcf.te.runtime.services.interfaces.IService;
import org.eclipse.tcf.te.runtime.stepper.interfaces.IStepContext;
import org.eclipse.tcf.te.runtime.stepper.interfaces.IStepperOperationService;
import org.eclipse.tcf.te.runtime.stepper.job.StepperJob;
import org.eclipse.tcf.te.runtime.utils.StatusHelper;
import org.eclipse.tcf.te.ui.activator.UIPlugin;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipse.ui.part.EditorPart;
/**
* Stepper command handler implementation.
*/
public class StepperCommandHandler extends AbstractHandler implements IExecutableExtension {
protected String operation = null;
protected String adaptTo = null;
/**
* Part id: Project Explorer view
*/
public static final String PART_ID_PROJECT_VIEW = "org.eclipse.ui.navigator.ProjectExplorer"; //$NON-NLS-1$
/* (non-Javadoc)
* @see com.windriver.te.tcf.ui.handler.AbstractAgentCommandHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*/
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
Assert.isNotNull(operation);
IStructuredSelection selection = getSelection(event);
Assert.isNotNull(selection);
Iterator<?> iterator = selection.iterator();
while (iterator.hasNext()) {
Object element = iterator.next();
Object adapted = element;
if (adaptTo != null) {
Object adapter = Platform.getAdapterManager().getAdapter(element, adaptTo);
if (adapter != null) adapted = adapter;
}
IStepperOperationService stepperOperationService = getStepperService(adapted, operation);
if (stepperOperationService != null) {
IStepContext stepContext = stepperOperationService.getStepContext(adapted, operation);
String stepGroupId = stepperOperationService.getStepGroupId(adapted, operation);
String name = stepperOperationService.getStepGroupName(adapted, operation);
boolean isCancelable = stepperOperationService.isCancelable(adapted, operation);
IPropertiesContainer data = stepperOperationService.getStepData(adapted, operation);
if (stepGroupId != null && stepContext != null) {
scheduleStepperJob(stepContext, data, stepGroupId, name, isCancelable);
}
}
}
return null;
}
/**
* Get the stepper service for the given context and operation.
*
* @param context The context.
* @param operation The operation.
* @return The stepper service or <code>null</code>.
*/
protected IStepperOperationService getStepperService(Object context, String operation) {
IService[] services = ServiceManager.getInstance().getServices(context, IStepperOperationService.class, false);
IStepperOperationService stepperOperationService = null;
for (IService service : services) {
if (service instanceof IStepperOperationService && ((IStepperOperationService)service).isHandledOperation(context, operation)) {
stepperOperationService = (IStepperOperationService)service;
break;
}
}
return stepperOperationService;
}
/**
* Get the selection for the handler execution.
*
* @param event The event.
* @return The selection.
*/
protected IStructuredSelection getSelection(ExecutionEvent event) {
// Get the current selection
ISelection selection = HandlerUtil.getCurrentSelection(event);
List<Object> elements = new ArrayList<Object>();
if (selection instanceof IStructuredSelection && !selection.isEmpty()) {
Iterator<Object> iterator = ((IStructuredSelection)selection).iterator();
while (iterator.hasNext()) elements.add(iterator.next());
}
// Get the active part
IWorkbenchPart part = HandlerUtil.getActivePart(event);
// If the handler is invoked from an editor part, construct an artificial selection
// from the active editor input.
if (part instanceof EditorPart) {
IEditorInput input = ((EditorPart)part).getEditorInput();
Object element = input != null ? input.getAdapter(Object.class) : null;
if (element != null && !elements.contains(element)) elements.add(element);
}
selection = elements.isEmpty() ? new StructuredSelection() : new StructuredSelection(elements);
return (IStructuredSelection)selection;
}
/**
* Schedule the stepper job.
* @param stepContext The step context.
* @param data The execution data.
* @param stepGroupId The step group id to execute.
* @param name The job name.
* @param isCancelable <code>true</code> if the job should be cancelable.
*/
protected void scheduleStepperJob(IStepContext stepContext, IPropertiesContainer data, String stepGroupId, String name, boolean isCancelable) {
try {
StepperJob job = new StepperJob(name != null ? name : "", //$NON-NLS-1$
stepContext,
data,
stepGroupId,
operation,
isCancelable);
job.schedule();
} catch (IllegalStateException e) {
if (Platform.inDebugMode()) {
UIPlugin.getDefault().getLog().log(StatusHelper.getStatus(e));
}
}
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.IExecutableExtension#setInitializationData(org.eclipse.core.runtime.IConfigurationElement, java.lang.String, java.lang.Object)
*/
@Override
public void setInitializationData(IConfigurationElement config, String propertyName, Object data) throws CoreException {
if (data instanceof Map) {
Map<?,?> dataMap = (Map<?,?>)data;
if (dataMap.get("operation") instanceof String) { //$NON-NLS-1$
this.operation = dataMap.get("operation").toString(); //$NON-NLS-1$
}
if (dataMap.get("adaptTo") instanceof String) { //$NON-NLS-1$
this.adaptTo = dataMap.get("adaptTo").toString(); //$NON-NLS-1$
}
}
}
public static IStructuredSelection getPartSelection(String partId) {
IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
if (partId != null && window != null && window.getActivePage() != null) {
ISelection sel = window.getActivePage().getSelection(partId);
if (sel instanceof IStructuredSelection) {
return (IStructuredSelection)sel;
}
}
return null;
}
public static IStructuredSelection getEditorInputSelection() {
IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
if (window != null && window.getActivePage() != null && window.getActivePage().getActiveEditor() != null) {
return new StructuredSelection(window.getActivePage().getActiveEditor().getEditorInput());
}
return null;
}
}
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