org.openlegacy.ide.eclipse.ui.preferences.OpenLegacyPreferencePage.java Source code

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Here is the source code for org.openlegacy.ide.eclipse.ui.preferences.OpenLegacyPreferencePage.java

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/*******************************************************************************
 * Copyright (c) 2014 OpenLegacy Inc.
 * 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:
 *     OpenLegacy Inc. - initial API and implementation
 *******************************************************************************/
package org.openlegacy.ide.eclipse.ui.preferences;

import org.eclipse.jface.preference.BooleanFieldEditor;
import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.openlegacy.ide.eclipse.Activator;
import org.openlegacy.ide.eclipse.Messages;
import org.openlegacy.ide.eclipse.PluginConstants;

import java.text.MessageFormat;

/**
 * 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 OpenLegacyPreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage {

    private StringFieldEditor urlEditor;

    private BooleanFieldEditor analyzeNewTrails;

    public OpenLegacyPreferencePage() {
        super(GRID);
        setPreferenceStore(Activator.getDefault().getPreferenceStore());
        setDescription("OpenLegacy preferences");
    }

    /**
     * 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.
     */
    @Override
    public void createFieldEditors() {
        this.urlEditor = new StringFieldEditor(PreferenceConstants.P_TEMPLATES_URL,
                Messages.getString("label_templates_url_preference"), getFieldEditorParent());
        this.analyzeNewTrails = new BooleanFieldEditor(PreferenceConstants.P_ANALYZE_NEW_TRAILS,
                "Analyze new trails", getFieldEditorParent());
        addField(this.urlEditor);
        addField(this.analyzeNewTrails);
    }

    @Override
    protected void checkState() {
        super.checkState();
        if (this.urlEditor.getStringValue() == null || this.urlEditor.getStringValue().equals("")) {
            this.urlEditor.setStringValue(PluginConstants.TEMPLATES_URL);
        }
        String url = this.urlEditor.getStringValue();
        if (!url.startsWith("http")) {//$NON-NLS-1$
            url = MessageFormat.format("http://{0}", url);//$NON-NLS-1$
        }
        // remove last "/"
        while (url.lastIndexOf("/") == (url.length() - 1)) {
            url = url.substring(0, url.length() - 1);
        }
        this.urlEditor.setStringValue(url);

        setValid(true);
    }

    @Override
    public boolean performOk() {
        checkState();
        return super.performOk();
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench)
     */
    @Override
    public void init(IWorkbench workbench) {
    }

}