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/*******************************************************************************
* 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.ui.commands;
import java.util.List;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin;
import org.eclipse.mylyn.internal.tasks.ui.editors.TaskAttachmentEditorInput;
import org.eclipse.mylyn.internal.tasks.ui.util.TasksUiInternal;
import org.eclipse.mylyn.tasks.core.ITaskAttachment;
import org.eclipse.ui.IEditorDescriptor;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.handlers.HandlerUtil;
/**
* @author Steffen Pingel
*/
public class OpenTaskAttachmentInDefaultEditorHandler extends AbstractHandler {
public Object execute(ExecutionEvent event) throws ExecutionException {
IWorkbenchPage page = null;
ISelection selection = HandlerUtil.getCurrentSelection(event);
if (selection instanceof IStructuredSelection) {
List<?> items = ((IStructuredSelection) selection).toList();
for (Object item : items) {
if (item instanceof ITaskAttachment) {
if (page == null) {
IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindowChecked(event);
page = window.getActivePage();
if (page == null) {
throw new ExecutionException("No active workbench page");
}
}
openAttachment(page, (ITaskAttachment) item);
}
}
}
return null;
}
private void openAttachment(IWorkbenchPage page, ITaskAttachment attachment) throws ExecutionException {
TaskAttachmentEditorInput input = new TaskAttachmentEditorInput(attachment);
IEditorDescriptor description = PlatformUI.getWorkbench().getEditorRegistry().getDefaultEditor(input.getName());
if (description == null) {
TasksUiInternal.displayStatus("Open Attachment Failed", new Status(IStatus.WARNING,
TasksUiPlugin.ID_PLUGIN, "No default editor for \"" + input.getName() + "\" found"));
} else {
try {
page.openEditor(input, description.getId());
} catch (PartInitException e) {
throw new ExecutionException("Failed to open editor", e);
}
}
}
}
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