/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.sdkuilib.internal.tasks;
import com.android.sdklib.internal.repository.ITask;
import com.android.sdklib.internal.repository.ITaskMonitor;
import org.eclipse.swt.widgets.Shell;
/**
* An {@link ITaskMonitor} that displays a {@link ProgressTaskDialog}.
*/
public final class ProgressTask extends TaskMonitorImpl {
private final String mTitle;
private final ProgressTaskDialog mDialog;
private volatile boolean mAutoClose = true;
/**
* Creates a new {@link ProgressTask} with the given title.
* This does NOT start the task. The caller must invoke {@link #start(ITask)}.
*/
public ProgressTask(Shell parent, String title) {
super(new ProgressTaskDialog(parent));
mTitle = title;
mDialog = (ProgressTaskDialog) getUiProvider();
mDialog.setText(mTitle);
}
/**
* Execute the given task in a separate thread (not the UI thread).
* This blocks till the thread ends.
* <p/>
* The {@link ProgressTask} must not be reused after this call.
*/
public void start(ITask task) {
assert mDialog != null;
mDialog.open(createTaskThread(mTitle, task));
}
/**
* Changes the auto-close behavior of the dialog on task completion.
*
* @param autoClose True if the dialog should be closed automatically when the task
* has completed.
*/
public void setAutoClose(boolean autoClose) {
if (autoClose != mAutoClose) {
if (autoClose) {
mDialog.setAutoCloseRequested();
} else {
mDialog.setManualCloseRequested();
}
mAutoClose = autoClose;
}
}
/**
* Creates a thread to run the task. The thread has not been started yet.
* When the task completes, requests to close the dialog.
*
* @return A new thread that will run the task. The thread has not been started yet.
*/
private Thread createTaskThread(String title, final ITask task) {
if (task != null) {
return new Thread(title) {
@Override
public void run() {
task.run(ProgressTask.this);
if (mAutoClose) {
mDialog.setAutoCloseRequested();
} else {
mDialog.setManualCloseRequested();
}
}
};
}
return null;
}
/**
* {@inheritDoc}
* <p/>
* Sets the dialog to not auto-close since we want the user to see the error
* (this is equivalent to calling {@code setAutoClose(false)}).
*/
@Override
public void logError(String format, Object...args) {
setAutoClose(false);
super.logError(format, args);
}
}