/*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package org.eclipse.visualvm.launcher.preferences;
import java.io.File;
import org.eclipse.jface.preference.*;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.IWorkbench;
import org.eclipse.visualvm.launcher.Activator;
import org.eclipse.visualvm.launcher.resources.PreferencesMessages;
/**
* This class represents a preference page that
* is contributed to the Preferences dialog. By
* subclassing <samp>FieldEditorPreferencePage</samp>, we
* can use the field support built into JFace that allows
* us to create a page that is small and knows how to
* save, restore and apply itself.
* <p>
* This page is used to modify preferences only. They
* are stored in the preference store that belongs to
* the main plug-in class. That way, preferences can
* be accessed directly via the preference store.
*/
public class LocationPreferencePage
extends FieldEditorPreferencePage
implements IWorkbenchPreferencePage {
public LocationPreferencePage() {
super(GRID);
setPreferenceStore(Activator.getDefault().getPreferenceStore());
setDescription(PreferencesMessages.LocationPreferencePage_0);
}
/**
* Creates the field editors. Field editors are abstractions of
* the common GUI blocks needed to manipulate various types
* of preferences. Each field editor knows how to save and
* restore itself.
*/
public void createFieldEditors() {
FileFieldEditor ffe = new FileFieldEditor(PreferenceConstants.P_PATH,
PreferencesMessages.LocationPreferencePage_1, getFieldEditorParent()) {
@Override
protected void refreshValidState() {
super.refreshValidState();
if (isValid()) {
boolean isWindows = System.getProperty("os.name").toUpperCase().contains("WIN"); //$NON-NLS-1$ //$NON-NLS-2$
boolean validated = isWindows ? getStringValue().endsWith("visualvm.exe") : getStringValue().endsWith("visualvm"); //$NON-NLS-1$ //$NON-NLS-2$
if (!validated) {
setErrorMessage(PreferencesMessages.LocationPreferencePage_6);
}
setValid(validated);
}
}
};
ffe.setValidateStrategy(FileFieldEditor.VALIDATE_ON_KEY_STROKE);
addField(ffe);
DirectoryFieldEditor dfe = new DirectoryFieldEditor(PreferenceConstants.P_JAVAHOME,
PreferencesMessages.LocationPreferencePage_2, getFieldEditorParent()) {
@Override
protected void refreshValidState() {
super.refreshValidState();
if (isValid()) {
String toolsJarPath = getStringValue() + File.separator + "lib" + File.separator + "tools.jar";
File toolsJarFile = new File(toolsJarPath);
boolean validated = toolsJarFile.exists() && toolsJarFile.isFile();
if (!validated) {
setErrorMessage(PreferencesMessages.LocationPreferencePage_7);
}
setValid(validated);
}
}
};
dfe.setValidateStrategy(FileFieldEditor.VALIDATE_ON_KEY_STROKE);
addField(dfe);
}
/* (non-Javadoc)
* @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench)
*/
public void init(IWorkbench workbench) {
}
}