/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.waveprotocol.box.webclient.client;
import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.SpanElement;
import com.google.gwt.resources.client.CssResource;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.Widget;
import org.waveprotocol.wave.client.events.ClientEvents;
import org.waveprotocol.wave.client.events.DebugMessageEvent;
import org.waveprotocol.wave.client.events.DebugMessageEventHandler;
import java.util.Date;
public class DebugMessagePanel extends Composite {
interface Binder extends UiBinder<Widget, DebugMessagePanel> {
}
interface Style extends CssResource {
String entry();
String info();
String severe();
}
private static final Binder BINDER = GWT.create(Binder.class);
@UiField
HTMLPanel panel;
@UiField
Style style;
public DebugMessagePanel() {
initWidget(BINDER.createAndBindUi(this));
}
public void enable() {
ClientEvents.get().addDebugMessageHandler(new DebugMessageEventHandler() {
@Override
public void onDebugMessage(DebugMessageEvent event) {
StringBuilder message = new StringBuilder();
message.append(new Date());
message.append("[").append(event.getSeverity().toString()).append("] ");
message.append(event.getMessage()).append("\n");
Throwable error = event.getError();
while (error != null) {
message.append(error.getMessage()).append("\n");
for (StackTraceElement elt : error.getStackTrace()) {
message.append(" ").append(elt.getClassName()).append(".").append(
elt.getMethodName()).append(" (").append(elt.getFileName()).append(
":").append(elt.getLineNumber()).append(")\n");
}
error = error.getCause();
if (error != null) {
message.append("Caused by: ");
}
}
SpanElement elt = Document.get().createSpanElement();
elt.setInnerText(message.toString());
switch (event.severity) {
case SEVERE:
elt.setClassName(style.entry() + " " + style.severe());
break;
case INFO:
elt.setClassName(style.entry() + " " + style.info());
break;
}
panel.getElement().appendChild(elt);
elt.scrollIntoView();
}
});
}
}