/*******************************************************************************
* Copyright (c) 2000, 2015 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.views.tasklist;
import org.eclipse.core.resources.IMarker;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.window.Window;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.internal.views.tasklist.TaskListMessages;
/**
* This action creates a new task. If a resource is currently
* present at the tasklist's input, this task will be
* associated with it. If the tasklist is currently
* observing all the markers in the workbench, the task
* will not be associated with any resource.
* <p>The newly created task will have low priority,
* fixed description text and will not be subject to
* sorting or filtering until its desciprion is being
* changed for the first time. For this reason, new
* tasks remain at the top of the task list
* until modified. It is possible that the newly
* created task dissapears after that if its
* type or some other property causes it to
* be filtered out.
*/
class NewTaskAction extends TaskAction {
/**
* Creates the action.
*
* @param tasklist the task list
* @param id the id
*/
public NewTaskAction(TaskList tasklist, String id) {
super(tasklist, id);
PlatformUI.getWorkbench().getHelpSystem().setHelp(this,
ITaskListHelpContextIds.NEW_TASK_ACTION);
}
/**
* Opens the new task dialog and shows the newly created task when done.
* The new task is created on the currently selected resource.
*/
@Override
public void run() {
TaskPropertiesDialog dialog = new TaskPropertiesDialog(getShell());
dialog.setResource(getTaskList().getResource());
int result = dialog.open();
if (result == Window.OK) {
showMarker(dialog.getMarker());
}
}
/**
* Show the newly created marker.
*/
private void showMarker(final IMarker marker) {
if (marker == null) {
return;
}
if (getTaskList().shouldShow(marker)) {
// Need to do this in an asyncExec, even though we're in the UI thread here,
// since the task list updates itself with the addition in an asyncExec,
// which hasn't been processed yet.
getShell().getDisplay().asyncExec(() -> getTaskList().setSelection(new StructuredSelection(marker),
true));
} else {
MessageDialog.openInformation(getShell(), TaskListMessages.NewTask_notShownTitle,
TaskListMessages.NewTask_notShownMsg);
}
}
}