package com.googlecode.richrest.client.view.jface;
import java.awt.Toolkit;
import java.awt.datatransfer.StringSelection;
import java.text.SimpleDateFormat;
import java.util.Date;
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.Shell;
import org.eclipse.swt.widgets.Text;
import com.googlecode.richrest.client.event.ExceptionAdapter;
import com.googlecode.richrest.client.event.ExceptionEvent;
import com.googlecode.richrest.client.event.ExceptionListener;
import com.googlecode.richrest.client.work.Worker;
import com.googlecode.richrest.util.ExceptionUtils;
public class ExceptionDialog extends Dialog {
private static final long serialVersionUID = 1L;
private final ExceptionListener exceptionListener;
private final Shell shell;
private final Text detailText;
public ExceptionDialog(final Shell parent) {
super(parent);
this.shell = new Shell(parent, SWT.DIALOG_TRIM | SWT.PRIMARY_MODAL);
shell.setSize(450, 200);
shell.setText("异常");
shell.addShellListener(new ShellAdapter() {
public void shellClosed(ShellEvent e) {
e.doit = false;
shell.setVisible(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 exceptionLabel = new Label(shell, SWT.WRAP);
exceptionLabel.setText("非常抱歉，传输过程出错或服务器端出错！");
exceptionLabel.setBounds(64, 24, 412, 16);
detailText = new Text(shell, SWT.BORDER|SWT.MULTI|SWT.V_SCROLL|SWT.H_SCROLL|SWT.WRAP);
detailText.setEditable(false);
detailText.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
detailText.setBounds(16, 56, 412, 64);
final Button copyButton = new Button(shell, SWT.NONE);
copyButton.setText("复制");
copyButton.setBounds(264, 130, 80, 24);
copyButton.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent e) {
StringSelection stringSelection = new StringSelection(detailText.getText());
Toolkit.getDefaultToolkit().getSystemClipboard().setContents(stringSelection, stringSelection);
MessageDialog.openInformation(shell, "复制", "已复制异常信息到您的粘贴板上!");
}
});
final Button okButton = new Button(shell, SWT.NONE);
okButton.setText("关闭");
okButton.setBounds(348, 130, 80, 24);
okButton.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent e) {
shell.setVisible(false);
}
});
exceptionListener = new ExceptionAdapter() { // 只在非UI线程执行
public void onBackCatched(ExceptionEvent event) {}
public void onForeCatched(ExceptionEvent event) {
if (UIUtils.isNonUIThread(event.getThread())) {
showException(event.getException());
}
}
};
Worker.getWorker().addListener(exceptionListener);
}
private void showException(final Throwable exception) {
shell.getDisplay().syncExec(new Runnable() {
public void run() {
detailText.setText("[" + new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS").format(new Date()) + "]\n" + ExceptionUtils.getDetailMessage(exception));
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);
}
}
});
}
private Image getImage() {
final Image[] image = new Image[1];
shell.getDisplay().syncExec(new Runnable() {
public void run() {
image[0] = shell.getDisplay().getSystemImage(SWT.ICON_ERROR);
}
});
return image[0];
}
public void dispose() {
Worker.getWorker().removeListener(exceptionListener);
if (shell != null && ! shell.isDisposed())
shell.dispose();
}
}