com.github.apetrelli.gwtintegration.error.client.DialogBoxUncaughtExceptionHandler Maven / Gradle / Ivy

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Better error and exception management under GWT

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package com.github.apetrelli.gwtintegration.error.client;

import com.github.apetrelli.gwtintegration.error.client.widget.ErrorDisplayWidget;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.DialogBox;

/**
 * Handles client exceptions by showing an error message.
 */
public class DialogBoxUncaughtExceptionHandler extends BaseUncaughtExceptionHandler {

	private ErrorDisplayWidget errorDisplayWidget;

	private DialogBox dialogBox;

	/**
	 * Constructor.
	 */
	public DialogBoxUncaughtExceptionHandler() {
		createGenericErrorDialog();
	}

	protected void show(Throwable exceptionToDisplay) {
		DialogBox dialogBox = this.dialogBox;
		errorDisplayWidget.prepare(exceptionToDisplay.getMessage());
		dialogBox.setText("Uncaught exception, probable client side error");
		dialogBox.center();
	}

	private void createGenericErrorDialog() {
		errorDisplayWidget = new ErrorDisplayWidget();
		dialogBox = new DialogBox(true, true);
		dialogBox.setWidget(errorDisplayWidget);
		dialogBox.setHeight("40em");
		dialogBox.setWidth("80em");
		dialogBox.setAnimationEnabled(true);
		dialogBox.setGlassEnabled(true);
		errorDisplayWidget.getDismiss().addClickHandler(new ClickHandler() {
			public void onClick(ClickEvent event) {
				dialogBox.hide();
			}
		});
	}
}