// CHECKSTYLE_OFF
/*
* Copyright 2008 Fred Sauer
*
* 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.
*
* Modified by Google
*/
package com.google.gwt.libideas.logging.client;
import com.google.gwt.core.client.GWT;
import com.google.gwt.libideas.logging.shared.LogHandler;
import com.google.gwt.libideas.logging.shared.Level;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.DeferredCommand;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.WindowResizeListener;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HasHorizontalAlignment;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.MouseListenerAdapter;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.ScrollPanel;
import com.google.gwt.user.client.ui.Widget;
/**
* Logger which outputs to a draggable floating <code>DIV</code>.
*
* @deprecated use the com.google.gwt.gen2.logging classes instead
*/
@Deprecated
public class DivLogHandler extends LogHandler {
// CHECKSTYLE_JAVADOC_OFF
private static final String STACKTRACE_ELEMENT_PREFIX = " at ";
private static final String STYLE_LOG_HEADER = "log-header";
private static final String STYLE_LOG_PANEL = "log-panel";
private static final String STYLE_LOG_SCROLL_PANEL = "log-scroll-panel";
private static final String STYLE_LOG_TEXT_AREA = "log-text-area";
private static final int UPDATE_INTERVAL_MILLIS = 500;
private FlexTable debugTable = new FlexTable() {
private WindowResizeListener windowResizeListener = new WindowResizeListener() {
public void onWindowResized(int width, int height) {
scrollPanel.setPixelSize(Math.max(300,
(int) (Window.getClientWidth() * .8)), Math.max(100,
(int) (Window.getClientHeight() * .2)));
}
};
protected void onLoad() {
super.onLoad();
windowResizeListener.onWindowResized(Window.getClientWidth(),
Window.getClientHeight());
Window.addWindowResizeListener(windowResizeListener);
}
protected void onUnload() {
super.onUnload();
Window.removeWindowResizeListener(windowResizeListener);
}
};
private boolean dirty = false;
private String logText = "";
private HTML logTextArea = new HTML();
private ScrollPanel scrollPanel = new ScrollPanel();
private Timer timer;
/**
* Default constructor.
*/
public DivLogHandler() {
debugTable.addStyleName(STYLE_LOG_PANEL);
logTextArea.addStyleName(STYLE_LOG_TEXT_AREA);
scrollPanel.addStyleName(STYLE_LOG_SCROLL_PANEL);
final Label header = new Label("LOG PANEL");
header.addStyleName(STYLE_LOG_HEADER);
debugTable.setWidget(0, 0, header);
debugTable.setWidget(1, 0, scrollPanel);
debugTable.getCellFormatter().setHorizontalAlignment(0, 0,
HasHorizontalAlignment.ALIGN_CENTER);
scrollPanel.setWidget(logTextArea);
header.addMouseListener(new MouseListenerAdapter() {
private boolean dragging = false;
private int dragStartX;
private int dragStartY;
public void onMouseDown(Widget sender, int x, int y) {
dragging = true;
DOM.setCapture(header.getElement());
dragStartX = x;
dragStartY = y;
}
public void onMouseMove(Widget sender, int x, int y) {
if (dragging) {
int absX = x + debugTable.getAbsoluteLeft();
int absY = y + debugTable.getAbsoluteTop();
RootPanel.get().setWidgetPosition(debugTable, absX - dragStartX,
absY - dragStartY);
}
}
public void onMouseUp(Widget sender, int x, int y) {
dragging = false;
DOM.releaseCapture(header.getElement());
}
});
debugTable.setVisible(false);
RootPanel.get().add(debugTable, 0, 0);
timer = new Timer() {
public void run() {
dirty = false;
logTextArea.setHTML(logTextArea.getHTML() + logText);
logText = "";
DeferredCommand.addCommand(new Command() {
public void execute() {
scrollPanel.setScrollPosition(Integer.MAX_VALUE);
}
});
}
};
}
public final void clear() {
logTextArea.setHTML("");
}
public final Widget getWidget() {
return debugTable;
}
public final boolean isSupported() {
return true;
}
public final boolean isVisible() {
return debugTable.isAttached() && debugTable.isVisible();
}
public final void moveTo(int x, int y) {
RootPanel.get().add(debugTable, x, y);
}
public final void setPixelSize(int width, int height) {
logTextArea.setPixelSize(width, height);
}
public final void setSize(String width, String height) {
logTextArea.setSize(width, height);
}
public final void publish(String message, Level level, String category,
Throwable throwable) {
logText = formatMessage(message, level, throwable);
if (!dirty) {
dirty = true;
timer.schedule(UPDATE_INTERVAL_MILLIS);
}
debugTable.setVisible(true);
}
public static String formatMessage(String message, Level level,
Throwable throwable) {
String text = message;
String title = makeTitle(message, throwable);
if (throwable != null) {
text += "\n";
while (throwable != null) {
text += GWT.getTypeName(throwable) + ":<br><b>"
+ throwable.getMessage() + "</b>";
StackTraceElement[] stackTraceElements = throwable.getStackTrace();
if (stackTraceElements.length > 0) {
text += "<div class='log-stacktrace'>";
for (int i = 0; i < stackTraceElements.length; i++) {
text += STACKTRACE_ELEMENT_PREFIX + stackTraceElements[i] + "<br>";
}
text += "</div>";
}
throwable = throwable.getCause();
if (throwable != null) {
text += "Caused by: ";
}
}
}
text = text.replaceAll("\r\n|\r|\n", "<BR>");
return "<div class='log-message' onmouseover='className+=\" log-message-hover\"' "
+ "onmouseout='className=className.replace(/ log-message-hover/g,\"\")' class='"
+ level.getName().toLowerCase() + "'" + title + "'>" + text + "</div>";
}
public static String makeTitle(String message, Throwable throwable) {
if (throwable != null) {
if (throwable.getMessage() == null) {
message = GWT.getTypeName(throwable);
} else {
message = throwable.getMessage().replaceAll(
GWT.getTypeName(throwable).replaceAll("^(.+\\.).+$", "$1"), "");
}
}
return com.google.gwt.libideas.logging.client.util.DOMUtil.adjustTitleLineBreaks(
message).replaceAll("<", "<").replaceAll(">", ">").replaceAll(
"'", "\"");
}
public void hideHandler() {
debugTable.setVisible(false);
}
}