/*******************************************************************************
* Copyright (c) 2003, 2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.internal.dialogs;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.TextTransfer;
import org.eclipse.swt.dnd.Transfer;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.internal.ConfigurationInfo;
import org.eclipse.ui.internal.IWorkbenchHelpContextIds;
import org.eclipse.ui.internal.WorkbenchMessages;
import org.eclipse.ui.internal.WorkbenchPlugin;
/**
* Displays system information about the eclipse application. The content of
* what is displayed is selectable through the
* <code>org.eclipse.ui.systemSummaryExtensions</code> extension point.
*/
public final class AboutSystemDialog extends ProductInfoDialog {
private Text text;
private final static int BROWSE_ERROR_LOG_BUTTON = IDialogConstants.CLIENT_ID;
private final static int COPY_TO_CLIPBOARD_BUTTON = IDialogConstants.CLIENT_ID + 1;
private final static String ERROR_LOG_COPY_FILENAME = "log"; //$NON-NLS-1$
/**
* Create an instance of this dialog.
*
* @param parentShell the parent shell
*/
public AboutSystemDialog(Shell parentShell) {
super(parentShell);
}
/* (non-Javadoc)
* Method declared on Window.
*/
protected void configureShell(Shell newShell) {
super.configureShell(newShell);
newShell.setText(WorkbenchMessages.SystemSummary_title);
PlatformUI.getWorkbench().getHelpSystem().setHelp(newShell,
IWorkbenchHelpContextIds.SYSTEM_SUMMARY_DIALOG);
}
/* (non-Javadoc)
* Method declared on Dialog.
*/
protected void createButtonsForButtonBar(Composite parent) {
parent.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
Button button = createButton(parent, BROWSE_ERROR_LOG_BUTTON, WorkbenchMessages.AboutSystemDialog_browseErrorLogName, false);
String filename = Platform.getLogFileLocation().toOSString();
button.setEnabled(new File(filename).exists());
createButton(parent, COPY_TO_CLIPBOARD_BUTTON, WorkbenchMessages.AboutSystemDialog_copyToClipboardName, false);
new Label(parent, SWT.NONE).setLayoutData(new GridData(
GridData.FILL_HORIZONTAL));
GridLayout layout = (GridLayout) parent.getLayout();
layout.numColumns++;
layout.makeColumnsEqualWidth = false;
createButton(parent, IDialogConstants.CLOSE_ID,
IDialogConstants.CLOSE_LABEL, true);
}
/* (non-Javadoc)
* Method declared on Dialog.
*/
protected Control createDialogArea(Composite parent) {
Composite outer = (Composite) super.createDialogArea(parent);
text = new Text(outer, SWT.MULTI | SWT.BORDER | SWT.READ_ONLY
| SWT.V_SCROLL | SWT.NO_FOCUS | SWT.H_SCROLL);
text.setBackground(parent.getDisplay().getSystemColor(
SWT.COLOR_LIST_BACKGROUND));
GridData gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL
| GridData.VERTICAL_ALIGN_FILL);
gridData.grabExcessVerticalSpace = true;
gridData.grabExcessHorizontalSpace = true;
gridData.heightHint = convertVerticalDLUsToPixels(300);
gridData.widthHint = convertHorizontalDLUsToPixels(400);
text.setLayoutData(gridData);
text.setText(ConfigurationInfo.getSystemSummary());
text.setFont(JFaceResources.getTextFont());
return outer;
}
/* (non-Javadoc)
* @see org.eclipse.jface.dialogs.Dialog#buttonPressed(int)
*/
protected void buttonPressed(int buttonId) {
switch (buttonId) {
case IDialogConstants.CLOSE_ID:
close();
break;
case BROWSE_ERROR_LOG_BUTTON:
openErrorLogBrowser();
break;
case COPY_TO_CLIPBOARD_BUTTON:
runCopyToClipboard();
break;
}
super.buttonPressed(buttonId);
}
private void openErrorLogBrowser() {
String filename = Platform.getLogFileLocation().toOSString();
File log = new File(filename);
if (log.exists()) {
// Make a copy of the file with a temporary name.
// Working around an issue with windows file associations/browser malfunction
// whereby the browser doesn't open on ".log" and we aren't returned an error.
// See https://bugs.eclipse.org/bugs/show_bug.cgi?id=97783
File logCopy = makeDisplayCopy(log);
if (logCopy != null) {
openLink("file:///" + logCopy.getAbsolutePath()); //$NON-NLS-1$
return;
}
// Couldn't make copy, try to open the original log.
// We try the original in this case rather than putting up an error,
// because the copy could fail due to an I/O or out of space problem.
// In that case we may still be able to show the original log,
// depending on the platform. The risk is that users with configurations
// that have bug #97783 will still get nothing (vs. an error) but we'd rather
// try again than put up an error dialog on platforms where the ability to
// view the original log works just fine.
openLink("file:///" + filename); //$NON-NLS-1$
return;
}
MessageDialog.openInformation(getShell(), WorkbenchMessages.AboutSystemDialog_noLogTitle,
NLS.bind(WorkbenchMessages.AboutSystemDialog_noLogMessage, filename ));
}
/**
* Returns a copy of the given file to be used for display in
* a browser.
*
* @return the file, or <code>null</code>
*/
private File makeDisplayCopy(File file) {
IPath path = WorkbenchPlugin.getDefault().getDataLocation();
if(path == null) {
return null;
}
path = path.append(ERROR_LOG_COPY_FILENAME);
File copy = path.toFile();
FileReader in = null;
FileWriter out = null;
try {
in = new FileReader(file);
// don't append data, overwrite what was there
out = new FileWriter(copy);
char buffer[] = new char[4096];
int count;
while ((count = in.read(buffer, 0, buffer.length)) > 0) {
out.write(buffer, 0, count);
}
} catch (FileNotFoundException e) {
return null;
} catch (IOException e) {
return null;
} finally {
try {
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
} catch (IOException e) {
return null;
}
}
return copy;
}
private void runCopyToClipboard() {
if (text == null) {
return;
}
Clipboard clipboard = null;
try {
clipboard = new Clipboard(getShell().getDisplay());
clipboard.setContents(new Object[] { text.getText() },
new Transfer[] { TextTransfer.getInstance() });
} finally {
if (clipboard != null) {
clipboard.dispose();
}
}
}
}