org.eclipse.jst.j2ee.internal.ui.preferences.JavaEEPreferencePage.java Source code

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Here is the source code for org.eclipse.jst.j2ee.internal.ui.preferences.JavaEEPreferencePage.java

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/*******************************************************************************
 * Copyright (c) 2009 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.jst.j2ee.internal.ui.preferences;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.core.runtime.Preferences;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jst.j2ee.internal.plugin.J2EEPlugin;
import org.eclipse.jst.j2ee.internal.plugin.J2EEUIMessages;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
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.Group;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;

public class JavaEEPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {

    private Preferences preferences;
    private String name = J2EEPlugin.DYNAMIC_TRANSLATION_OF_JET_TEMPLATES_PREF_KEY;
    private Button showReferences;
    private boolean dynamicTranslation;
    private ArrayList<IJavaEEPreferencePageExtender> extenders = new ArrayList();

    public JavaEEPreferencePage() {
        setDescription(J2EEUIMessages.getResourceString(J2EEUIMessages.JAVA_EE_PREFERENCE_PAGE_NAME));
    }

    @Override
    protected void performDefaults() {
        preferences.setToDefault(name);
        J2EEPlugin.getDefault().savePluginPreferences();
        dynamicTranslation = preferences.getBoolean(name);
        showReferences.setSelection(dynamicTranslation);
        for (IJavaEEPreferencePageExtender extender : extenders) {
            extender.performDefaults();
        }

        super.performDefaults();
    }

    @Override
    protected Control createContents(Composite parent) {
        Composite result = new Composite(parent, SWT.NONE);
        GridLayout layout = new GridLayout();
        layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
        layout.marginWidth = 0;
        layout.verticalSpacing = convertVerticalDLUsToPixels(10);
        layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
        result.setLayout(layout);
        Group buttonComposite = new Group(result, SWT.NONE);
        buttonComposite.setLayout(new GridLayout());
        buttonComposite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        buttonComposite
                .setText(J2EEUIMessages.getResourceString(J2EEUIMessages.JAVA_EE_PREFERENCE_PAGE_JET_TEMPLATE));

        showReferences = new Button(buttonComposite, SWT.CHECK);
        showReferences.setText(
                J2EEUIMessages.getResourceString(J2EEUIMessages.JAVA_EE_PREFERENCE_PAGE_DYN_TRANSLATION_BTN_NAME));
        showReferences.setSelection(dynamicTranslation);
        showReferences.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
                dynamicTranslation = showReferences.getSelection();
            }
        });
        invokeExtensions(result);

        return result;
    }

    public void init(IWorkbench workbench) {
        preferences = J2EEPlugin.getDefault().getPluginPreferences();
        dynamicTranslation = preferences.getBoolean(name);
    }

    @Override
    public boolean performOk() {
        preferences.setValue(name, showReferences.getSelection());
        J2EEPlugin.getDefault().savePluginPreferences();
        boolean result = false;
        for (IJavaEEPreferencePageExtender extender : extenders) {
            result = extender.performOk();
        }
        result = super.performOk();
        return result;
    }

    protected void invokeExtensions(Composite parent) {
        List<JavaEEPreferencePageExtension> list = JavaEEPreferencePageExtensionReader.getInstance()
                .getJavaEEPageExtenders();
        for (JavaEEPreferencePageExtension pageExtension : list) {
            IJavaEEPreferencePageExtender extender = pageExtension.getInstance();
            extenders.add(extender);
            extender.extendPage(parent);
        }
    }

    @Override
    public void dispose() {
        for (IJavaEEPreferencePageExtender extender : extenders) {
            extender.dispose();
        }
    }
}