package com.googlecode.richrest.client.view.jface;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.ShellAdapter;
import org.eclipse.swt.events.ShellEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Dialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.swt.widgets.Shell;
import com.googlecode.richrest.client.event.WorkAdapter;
import com.googlecode.richrest.client.event.WorkEvent;
import com.googlecode.richrest.client.event.WorkListener;
import com.googlecode.richrest.client.work.Work;
import com.googlecode.richrest.client.work.Worker;
import com.googlecode.richrest.util.ThreadUtils;
public class WorkDialog extends Dialog {
private final Shell shell;
private Label workLabel;
private Button backButton;
private Button abortButton;
private Work work;
private final WorkListener workListener;
protected WorkDialog(final Shell parent) {
super(parent);
this.shell = new Shell(parent, SWT.TITLE | SWT.BORDER | SWT.PRIMARY_MODAL);
shell.setSize(450, 180);
shell.setText("传输");
shell.addShellListener(new ShellAdapter() {
public void shellClosed(ShellEvent e) {
e.doit = false;
}
});
shell.setVisible(false);
Label imageLabel = new Label(shell, SWT.NULL);
Image image = getImage();
Rectangle imageRectangle = image.getBounds();
image.setBackground(imageLabel.getBackground());
imageLabel.setImage(image);
imageLabel.setBounds(16, 16, imageRectangle.width, imageRectangle.height);
Label messageLabel = new Label(shell, SWT.WRAP);
messageLabel.setText("正在传输，请稍候...");
messageLabel.setBounds(64, 24, 300, 16);
workLabel = new Label(shell, SWT.WRAP);
workLabel.setText("[NO.1][2008-10-10 12:11:23.214]loginAction");
workLabel.setBounds(16, 60, 412, 16);
ProgressBar progressBar = new ProgressBar(shell, SWT.HORIZONTAL|SWT.INDETERMINATE);
progressBar.setBounds(16, 80, 412, 16);
backButton = new Button(shell, SWT.PUSH);
backButton.setText("后台运行");
backButton.setBounds(264, 110, 80, 24);
backButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
final Work work = WorkDialog.this.work;
if (work != null && work.isBackable()) {
ThreadUtils.execute(new Runnable(){
public void run() {
try {
work.back();
} catch (final Throwable t) {
shell.getDisplay().asyncExec(new Runnable() {
public void run() {
MessageDialog.openError(shell, "后台运行", "后台运行传输项失败! 原因: " + t.getMessage());
}
});
}
}
});
}
}
});
abortButton = new Button(shell, SWT.PUSH);
abortButton.setText("中止");
abortButton.setBounds(348, 110, 80, 24);
abortButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
final Work work = WorkDialog.this.work;
if (work != null && work.isAbortable()) {
ThreadUtils.execute(new Runnable(){
public void run() {
try {
work.abort();
} catch (final Throwable t) {
shell.getDisplay().asyncExec(new Runnable() {
public void run() {
MessageDialog.openError(shell, "中止", "中止传输项失败! 原因: " + t.getMessage());
}
});
}
}
});
}
}
});
workListener = new WorkAdapter() { // 只在非UI线程执行
public void onForeWorking(WorkEvent event) {
if (UIUtils.isNonUIThread(event.getThread())) {
showWork(event.getWork());
}
}
public void onBackWorking(WorkEvent event) {
onWorked(event);
}
public void onWorked(WorkEvent event) {
if (UIUtils.isNonUIThread(event.getThread())) {
try {
if (Worker.getWorker().isForeWorking()) {
Work work = Worker.getWorker().getForeWorks().iterator().next();
showWork(work);
return;
}
} catch (Throwable t) {
// ignore
}
showWork(null);
}
}
};
Worker.getWorker().addListener(workListener);
}
public void dispose() {
Worker.getWorker().removeListener(workListener);
if (shell != null && ! shell.isDisposed())
shell.dispose();
}
private Image getImage() {
final Image[] image = new Image[1];
shell.getDisplay().syncExec(new Runnable() {
public void run() {
image[0] = shell.getDisplay().getSystemImage(SWT.ICON_INFORMATION);
}
});
return image[0];
}
private void showWork(final Work work) {
if (this.work != work) {
this.work = work;
shell.getDisplay().asyncExec(new Runnable() {
public void run() {
if (work != null) {
backButton.setEnabled(work.isBackable());
abortButton.setEnabled(work.isAbortable());
workLabel.setText(work.toString());
if (! shell.isVisible()) {
Rectangle displayBounds = Display.getDefault().getClientArea();
Rectangle shellBounds = shell.getBounds();
int x = (displayBounds.width - shellBounds.width) / 2;
int y = (displayBounds.height - shellBounds.height) / 2;
shell.setLocation(x, y);
shell.setVisible(true);
}
} else {
shell.setVisible(false);
}
}
});
}
}
}