com.aptana.ide.ui.io.preferences.RemotePreferencePage.java Source code

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Here is the source code for com.aptana.ide.ui.io.preferences.RemotePreferencePage.java

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/**
 * Aptana Studio
 * Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved.
 * Licensed under the terms of the GNU Public License (GPL) v3 (with exceptions).
 * Please see the license.html included with this distribution for details.
 * Any modifications to this file must keep this entire header intact.
 */
package com.aptana.ide.ui.io.preferences;

import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;

import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Table;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;

import com.aptana.ide.core.io.preferences.CloakingUtils;
import com.aptana.ide.ui.io.IOUIPlugin;
import com.aptana.ide.ui.io.dialogs.CloakExpressionDialog;

public class RemotePreferencePage extends PreferencePage implements IWorkbenchPreferencePage {

    private static final String ADD_ICON = "icons/full/etool16/add.png"; //$NON-NLS-1$
    private static final String REMOVE_ICON = "icons/full/etool16/delete.png"; //$NON-NLS-1$

    private Button removeButton;
    private TableViewer tableViewer;
    private Button fReopenButton;

    private Set<String> expressions;

    public RemotePreferencePage() {
        expressions = new HashSet<String>();
    }

    public void init(IWorkbench workbench) {
        setDescription(Messages.RemotePreferencePage_LBL_Description);
        loadCloakingExpressions();
    }

    @Override
    protected Control createContents(Composite parent) {
        Composite main = new Composite(parent, SWT.NONE);
        main.setLayout(GridLayoutFactory.swtDefaults().create());

        Composite cloaking = createCloakingComposite(main);
        cloaking.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create());

        fReopenButton = new Button(main, SWT.CHECK);
        fReopenButton.setText(Messages.RemotePreferencePage_LBL_ReopenRemote);
        fReopenButton.setSelection(RemotePreferenceUtil.getReopenRemoteOnStartup());
        fReopenButton.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).create());

        return main;
    }

    @Override
    protected void performDefaults() {
        expressions.clear();
        expressions.addAll(Arrays.asList(CloakingUtils.getDefaultCloakedFileTypes()));
        tableViewer.refresh();
        fReopenButton.setSelection(false);

        super.performDefaults();
    }

    @Override
    public boolean performOk() {
        saveCloakingExpressions();
        RemotePreferenceUtil.setReopenRemoteOnStartup(fReopenButton.getSelection());

        return super.performOk();
    }

    private Composite createCloakingComposite(Composite parent) {
        Composite main = new Composite(parent, SWT.NONE);
        main.setLayout(GridLayoutFactory.fillDefaults().numColumns(2).create());

        Button addButton = new Button(main, SWT.PUSH);
        addButton.setImage(IOUIPlugin.getImage(ADD_ICON));
        addButton.addSelectionListener(new SelectionAdapter() {

            @Override
            public void widgetSelected(SelectionEvent e) {
                add();
            }
        });

        removeButton = new Button(main, SWT.PUSH);
        removeButton.setImage(IOUIPlugin.getImage(REMOVE_ICON));
        removeButton.addSelectionListener(new SelectionAdapter() {

            @Override
            public void widgetSelected(SelectionEvent e) {
                remove();
            }
        });

        tableViewer = new TableViewer(main, SWT.MULTI | SWT.BORDER | SWT.FULL_SELECTION);
        Table table = tableViewer.getTable();
        table.setLayoutData(GridDataFactory.fillDefaults().span(2, 1).grab(true, true).create());
        tableViewer.setContentProvider(ArrayContentProvider.getInstance());
        tableViewer.setLabelProvider(new LabelProvider());
        tableViewer.setInput(expressions);
        tableViewer.setComparator(new ViewerComparator());
        tableViewer.addSelectionChangedListener(new ISelectionChangedListener() {

            public void selectionChanged(SelectionChangedEvent event) {
                updateButtonState();
            }
        });

        updateButtonState();

        return main;
    }

    private void add() {
        CloakExpressionDialog dialog = new CloakExpressionDialog(getShell());
        if (dialog.open() == Window.OK) {
            expressions.add(dialog.getExpression());
            tableViewer.refresh();
        }
    }

    private void remove() {
        Object[] elements = ((IStructuredSelection) tableViewer.getSelection()).toArray();
        for (Object element : elements) {
            expressions.remove(element.toString());
        }
        tableViewer.refresh();
    }

    private void updateButtonState() {
        boolean hasSelection = !tableViewer.getSelection().isEmpty();
        removeButton.setEnabled(hasSelection);
    }

    private void loadCloakingExpressions() {
        expressions.addAll(Arrays.asList(CloakingUtils.getCloakedFileTypes()));
    }

    private void saveCloakingExpressions() {
        CloakingUtils.setCloakedFileTypes(expressions.toArray(new String[expressions.size()]));
    }
}