org.eclipse.linuxtools.internal.rpm.ui.editor.preferences.RpmProposalsPreferencePage.java Source code

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Here is the source code for org.eclipse.linuxtools.internal.rpm.ui.editor.preferences.RpmProposalsPreferencePage.java

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/*******************************************************************************
 * Copyright (c) 2007, 2016 Alphonse Van Assche.
 * 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:
 *    Alphonse Van Assche - initial API and implementation
 *******************************************************************************/

package org.eclipse.linuxtools.internal.rpm.ui.editor.preferences;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;

import org.eclipse.jface.preference.BooleanFieldEditor;
import org.eclipse.jface.preference.FieldEditor;
import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.jface.preference.RadioGroupFieldEditor;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.linuxtools.internal.rpm.ui.editor.Activator;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Link;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.dialogs.PreferencesUtil;

/**
 * RPM package proposals preference page class.
 *
 */
public class RpmProposalsPreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage {

    private FieldEditor rpmtools;

    /*
     * default constructor
     */
    public RpmProposalsPreferencePage() {
        super(FLAT);
        setPreferenceStore(Activator.getDefault().getPreferenceStore());
    }

    @Override
    public void createFieldEditors() {
        rpmtools = rpmtoolsRadioGroupFieldEditor();
        addField(rpmtools);
        // FIXME: there is validations problem when a FileFieldEditor is used,
        // so
        // as a quick fix, StringFieldEditor is used.
        StringFieldEditor rpmListFieldEditor = new StringFieldEditor(PreferenceConstants.P_RPM_LIST_FILEPATH,
                Messages.RpmProposalsPreferencePage_0, getFieldEditorParent());
        addField(rpmListFieldEditor);
        addField(new BooleanFieldEditor(PreferenceConstants.P_RPM_LIST_BACKGROUND_BUILD,
                Messages.RpmProposalsPreferencePage_1, getFieldEditorParent()));
        addField(buildTimeListRateFieldEditor());
    }

    @Override
    protected Control createContents(final Composite parent) {
        Link link = new Link(parent, SWT.NONE);
        link.setText(Messages.RpmProposalsPreferencePage_2);
        link.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
                PreferencesUtil.createPreferenceDialogOn(parent.getShell(), e.text, null, null);
            }
        });
        return super.createContents(parent);
    }

    private FieldEditor rpmtoolsRadioGroupFieldEditor() {
        ArrayList<String[]> list = new ArrayList<>();
        list.add(new String[] { Messages.RpmProposalsPreferencePage_3, PreferenceConstants.DP_RPMTOOLS_RPM });
        /*
         * Show only installed tools. Don't forgot to add sanity check in
         * UiUtils.pluginSanityCheck().
         */
        if (Files.exists(Paths.get("/usr/bin/yum"))) { //$NON-NLS-1$
            list.add(new String[] { Messages.RpmProposalsPreferencePage_4, PreferenceConstants.DP_RPMTOOLS_YUM });
        }
        if (Files.exists(Paths.get("/usr/bin/urpmq"))) { //$NON-NLS-1$
            list.add(new String[] { Messages.RpmProposalsPreferencePage_5, PreferenceConstants.DP_RPMTOOLS_URPM });
        }

        String[][] radioItems = new String[list.size()][2];
        int pos = 0;
        for (String[] item : list) {
            radioItems[pos][0] = item[0];
            radioItems[pos][1] = item[1];
            pos++;

        }

        RadioGroupFieldEditor rpmToolsRadioGroupEditor = new RadioGroupFieldEditor(
                PreferenceConstants.P_CURRENT_RPMTOOLS, Messages.RpmProposalsPreferencePage_6, 1, radioItems,
                getFieldEditorParent(), true);
        return rpmToolsRadioGroupEditor;
    }

    private FieldEditor buildTimeListRateFieldEditor() {
        RadioGroupFieldEditor buildListTimeRateRadioGroupEditor = new RadioGroupFieldEditor(
                PreferenceConstants.P_RPM_LIST_BUILD_PERIOD, Messages.RpmProposalsPreferencePage_7, 1,
                new String[][] { { Messages.RpmProposalsPreferencePage_8, "1" }, //$NON-NLS-1$
                        { Messages.RpmProposalsPreferencePage_10, "2" }, //$NON-NLS-1$
                        { Messages.RpmProposalsPreferencePage_12, "3" } }, //$NON-NLS-1$
                getFieldEditorParent(), true);
        return buildListTimeRateRadioGroupEditor;
    }

    @Override
    public void init(IWorkbench workbench) {

    }

    @Override
    public void propertyChange(PropertyChangeEvent event) {
        super.propertyChange(event);
        if (event.getSource().equals(rpmtools)) {
            if (!event.getOldValue().equals(event.getNewValue())) {
                String rpmpkgsFile = Activator.getDefault().getPreferenceStore()
                        .getString(PreferenceConstants.P_RPM_LIST_FILEPATH);
                try {
                    Files.deleteIfExists(Paths.get(rpmpkgsFile));
                } catch (IOException e) {
                    // ignore
                }
                Activator.packagesList = null;
            }
        }
    }

}