/*
* Copyright 2000-2014 Vaadin Ltd.
*
* 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.vaadin.client.debug.internal;
import java.util.List;
import java.util.logging.Level;
import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Element;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.Widget;
import com.vaadin.client.ApplicationConfiguration;
import com.vaadin.client.ApplicationConnection;
import com.vaadin.client.ValueMap;
import com.vaadin.shared.Version;
import com.vaadin.shared.util.SharedUtil;
/**
* Information section of the debug window
*
* @since 7.1
* @author Vaadin Ltd
*/
public class InfoSection implements Section {
private static final String THEME_VERSION_CLASSNAME = "v-vaadin-version";
private static final String PRIMARY_STYLE_NAME = VDebugWindow.STYLENAME
+ "-info";
private static final String ERROR_STYLE = Level.SEVERE.getName();
private final HTML content = new HTML();
private DebugButton tabButton = new DebugButton(Icon.INFO,
"General information about the application(s)");
private HTML controls = new HTML(tabButton.getTitle());
private Timer refresher = new Timer() {
@Override
public void run() {
refresh();
}
};
/**
*
*/
public InfoSection() {
createContent();
}
/**
* @since 7.1
*/
private void createContent() {
content.setStylePrimaryName(PRIMARY_STYLE_NAME);
refresh();
}
private void addRow(String parameter, String value) {
addRow(parameter, value, null);
}
private void addRow(String parameter, String value, String className) {
Element row = DOM.createDiv();
row.addClassName(VDebugWindow.STYLENAME + "-row");
if (className != null) {
row.addClassName(className);
}
Element span = DOM.createSpan();
span.setClassName("caption");
span.setInnerText(parameter);
row.appendChild(span);
span = DOM.createSpan();
span.setClassName("value");
span.setInnerText(value);
row.appendChild(span);
content.getElement().appendChild(row);
}
/*
* (non-Javadoc)
*
* @see com.vaadin.client.debug.internal.Section#getTabButton()
*/
@Override
public DebugButton getTabButton() {
return tabButton;
}
/*
* (non-Javadoc)
*
* @see com.vaadin.client.debug.internal.Section#getControls()
*/
@Override
public Widget getControls() {
return controls;
}
/*
* (non-Javadoc)
*
* @see com.vaadin.client.debug.internal.Section#getContent()
*/
@Override
public Widget getContent() {
return content;
}
/*
* (non-Javadoc)
*
* @see com.vaadin.client.debug.internal.Section#show()
*/
@Override
public void show() {
refresh();
}
/**
* Updates the information for all running applications
*
* @since 7.1
*/
private void refresh() {
clear();
List<ApplicationConnection> apps = ApplicationConfiguration
.getRunningApplications();
if (apps.size() == 0) {
// try again in a while
refresher.schedule(1000);
} else {
for (ApplicationConnection application : apps) {
refresh(application);
}
}
}
/**
* Updates the information for a single running application
*
* @since 7.1
*/
private void refresh(ApplicationConnection connection) {
clear();
ApplicationConfiguration configuration = connection.getConfiguration();
addVersionInfo(configuration);
addRow("Widget set", GWT.getModuleName());
addRow("Theme", connection.getUIConnector().getActiveTheme());
String communicationMethodInfo = connection
.getCommunicationMethodName();
int pollInterval = connection.getUIConnector().getState().pollInterval;
if (pollInterval > 0) {
communicationMethodInfo += " (poll interval " + pollInterval
+ "ms)";
}
addRow("Communication method", communicationMethodInfo);
String heartBeatInfo;
if (configuration.getHeartbeatInterval() < 0) {
heartBeatInfo = "Disabled";
} else {
heartBeatInfo = configuration.getHeartbeatInterval() + "s";
}
addRow("Heartbeat", heartBeatInfo);
}
/**
* Logs version information for client/server/theme.
*
* @param applicationConfiguration
* @since 7.1
*/
private void addVersionInfo(
ApplicationConfiguration applicationConfiguration) {
String clientVersion = Version.getFullVersion();
String servletVersion = applicationConfiguration.getServletVersion();
String themeVersion;
boolean themeOk;
if (com.vaadin.client.BrowserInfo.get().isIE8()) {
themeVersion = "<IE8 can't detect this>";
themeOk = true;
} else {
themeVersion = getThemeVersion();
themeOk = equalsEither(themeVersion, clientVersion, servletVersion);
}
boolean clientOk = equalsEither(clientVersion, servletVersion,
themeVersion);
boolean servletOk = equalsEither(servletVersion, clientVersion,
themeVersion);
addRow("Client engine version", clientVersion, clientOk ? null
: ERROR_STYLE);
addRow("Server engine version", servletVersion, servletOk ? null
: ERROR_STYLE);
addRow("Theme version", themeVersion, themeOk ? null : ERROR_STYLE);
}
/**
* Checks if the target value equals one of the reference values
*
* @param target
* The value to compare
* @param reference1
* A reference value
* @param reference2
* A reference value
* @return true if target equals one of the references, false otherwise
*/
private boolean equalsEither(String target, String reference1,
String reference2) {
if (SharedUtil.equals(target, reference1)) {
return true;
}
if (SharedUtil.equals(target, reference2)) {
return true;
}
return false;
}
/**
* Finds out the version of the current theme (i.e. the version of Vaadin
* used to compile it)
*
* @since 7.1
* @return The full version as a string
*/
private String getThemeVersion() {
Element div = DOM.createDiv();
div.setClassName(THEME_VERSION_CLASSNAME);
RootPanel.get().getElement().appendChild(div);
String version = getComputedStyle(div, ":after", "content");
div.removeFromParent();
if (version != null) {
// String version = new ComputedStyle(div).getProperty("content");
version = version.replace("'", "");
version = version.replace("\"", "");
}
return version;
}
private native String getComputedStyle(Element elem, String pseudoElement,
String property)
/*-{
if ($wnd.document.defaultView && $wnd.document.defaultView.getComputedStyle) {
return $wnd.document.defaultView.getComputedStyle(elem, pseudoElement)[property];
} else {
return null;
}
}-*/;
/**
* Removes all content
*
* @since 7.1
*/
private void clear() {
content.getElement().setInnerHTML("");
}
/*
* (non-Javadoc)
*
* @see com.vaadin.client.debug.internal.Section#hide()
*/
@Override
public void hide() {
refresher.cancel();
}
/*
* (non-Javadoc)
*
* @see com.vaadin.client.debug.internal.Section#meta(com.vaadin.client.
* ApplicationConnection, com.vaadin.client.ValueMap)
*/
@Override
public void meta(ApplicationConnection ac, ValueMap meta) {
}
/*
* (non-Javadoc)
*
* @see com.vaadin.client.debug.internal.Section#uidl(com.vaadin.client.
* ApplicationConnection, com.vaadin.client.ValueMap)
*/
@Override
public void uidl(ApplicationConnection ac, ValueMap uidl) {
}
}