// Copyright (C) 2008 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.google.gerrit.client;
import com.google.gerrit.client.rpc.RpcConstants;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyPressEvent;
import com.google.gwt.event.dom.client.KeyPressHandler;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.StatusCodeException;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwtexpui.safehtml.client.SafeHtml;
import com.google.gwtexpui.user.client.PluginSafePopupPanel;
import com.google.gwtjsonrpc.client.RemoteJsonException;
/** A dialog box showing an error message, when bad things happen. */
public class ErrorDialog extends PluginSafePopupPanel {
private final Label text;
private final FlowPanel body;
private final Button closey;
protected ErrorDialog() {
super(/* auto hide */false, /* modal */true);
setGlassEnabled(true);
getGlassElement().addClassName(Gerrit.RESOURCES.css().errorDialogGlass());
text = new Label();
text.setStyleName(Gerrit.RESOURCES.css().errorDialogTitle());
body = new FlowPanel();
final FlowPanel buttons = new FlowPanel();
buttons.setStyleName(Gerrit.RESOURCES.css().errorDialogButtons());
closey = new Button();
closey.setText(Gerrit.C.errorDialogContinue());
closey.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
hide();
}
});
closey.addKeyPressHandler(new KeyPressHandler() {
@Override
public void onKeyPress(KeyPressEvent event) {
// if the close button is triggered by a key we need to consume the key
// event, otherwise the key event would be propagated to the parent
// screen and eventually trigger some unwanted action there after the
// error dialog was closed
event.stopPropagation();
}
});
buttons.add(closey);
final FlowPanel center = new FlowPanel();
center.add(text);
center.add(body);
center.add(buttons);
setText(Gerrit.C.errorDialogTitle());
addStyleName(Gerrit.RESOURCES.css().errorDialog());
add(center);
int l = Window.getScrollLeft() + 20;
int t = Window.getScrollTop() + 20;
setPopupPosition(l, t);
}
/** Create a dialog box to show a single message string. */
public ErrorDialog(final String message) {
this();
body.add(new Label(message));
}
/** Create a dialog box to show a single message string. */
public ErrorDialog(final SafeHtml message) {
this();
body.add(message.toBlockWidget());
}
public ErrorDialog(final Widget w) {
this();
body.add(w);
}
/** Create a dialog box to nicely format an exception. */
public ErrorDialog(final Throwable what) {
this();
String cn;
if (what instanceof RemoteJsonException) {
cn = RpcConstants.C.errorRemoteJsonException();
} else if (what instanceof StatusCodeException) {
cn = RpcConstants.C.errorServerUnavailable();
} else {
cn = what.getClass().getName();
if (cn.startsWith("java.lang.")) {
cn = cn.substring("java.lang.".length());
} else if (cn.startsWith("com.google.gerrit.")) {
cn = cn.substring(cn.lastIndexOf('.') + 1);
}
if (cn.endsWith("Exception")) {
cn = cn.substring(0, cn.length() - "Exception".length());
} else if (cn.endsWith("Error")) {
cn = cn.substring(0, cn.length() - "Error".length());
}
}
final Label r = new Label(cn);
r.setStyleName(Gerrit.RESOURCES.css().errorDialogErrorType());
body.add(r);
final Label m = new Label(what.getMessage());
DOM.setStyleAttribute(m.getElement(),"whiteSpace","pre");
body.add(m);
}
public void setText(final String t) {
text.setText(t);
}
@Override
public void center() {
show();
closey.setFocus(true);
}
}