org.eclipse.wb.internal.rcp.databinding.model.widgets.observables.TextSwtObservableInfo.java Source code

Introduction

Here is the source code for org.eclipse.wb.internal.rcp.databinding.model.widgets.observables.TextSwtObservableInfo.java

Source

/*******************************************************************************
 * Copyright (c) 2011 Google, 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:
 *    Google, Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.wb.internal.rcp.databinding.model.widgets.observables;

import com.google.common.collect.Lists;

import org.eclipse.wb.internal.core.databinding.ui.editor.IUiContentProvider;
import org.eclipse.wb.internal.core.utils.check.Assert;
import org.eclipse.wb.internal.rcp.databinding.DatabindingsProvider;
import org.eclipse.wb.internal.rcp.databinding.model.context.BindingUiContentProviderContext;
import org.eclipse.wb.internal.rcp.databinding.model.widgets.bindables.WidgetBindableInfo;
import org.eclipse.wb.internal.rcp.databinding.model.widgets.bindables.WidgetPropertyBindableInfo;
import org.eclipse.wb.internal.rcp.databinding.ui.contentproviders.SwtTextEventsUiContentProvider;

import org.eclipse.swt.SWT;

import org.apache.commons.lang.ArrayUtils;
import org.apache.commons.lang.StringUtils;

import java.util.List;

/**
 * Model for observable object <code>SWTObservables.observeText(Control, int)</code>.
 * 
 * @author lobas_av
 * @coverage bindings.rcp.model.widgets
 */
public final class TextSwtObservableInfo extends SwtObservableInfo {
    private static final int[] VALID_UPDATE_EVENT_TYPES = { SWT.Modify, SWT.FocusOut, SWT.DefaultSelection,
            SWT.None };
    public static final String[] TEXT_EVENTS = { "SWT.Modify", "SWT.FocusOut", "SWT.DefaultSelection", "SWT.NONE" };
    private List<String> m_updateEvents;

    ////////////////////////////////////////////////////////////////////////////
    //
    // Constructors
    //
    ////////////////////////////////////////////////////////////////////////////
    public TextSwtObservableInfo(WidgetBindableInfo bindableWidget, WidgetPropertyBindableInfo bindableProperty) {
        this(bindableWidget, bindableProperty, new int[] { SWT.Modify });
    }

    public TextSwtObservableInfo(WidgetBindableInfo bindableWidget, WidgetPropertyBindableInfo bindableProperty,
            int updateEvent) {
        this(bindableWidget, bindableProperty, new int[] { updateEvent });
    }

    public TextSwtObservableInfo(WidgetBindableInfo bindableWidget, WidgetPropertyBindableInfo bindableProperty,
            int[] updateEvents) {
        super(bindableWidget, bindableProperty);
        Assert.isNotNull(updateEvents);
        m_updateEvents = getEventsSources(updateEvents);
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // Access
    //
    ////////////////////////////////////////////////////////////////////////////
    public List<String> getUpdateEvents() {
        return Lists.newArrayList(m_updateEvents);
    }

    public void setUpdateEvents(List<String> updateEvents) {
        m_updateEvents = Lists.newArrayList(updateEvents);
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // Presentation
    //
    ////////////////////////////////////////////////////////////////////////////
    @Override
    public String getPresentationText() throws Exception {
        String presentationText = super.getPresentationText();
        if (!m_updateEvents.isEmpty()) {
            presentationText += "(" + StringUtils.join(m_updateEvents, ", ") + ")";
        }
        return presentationText;
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // Editing
    //
    ////////////////////////////////////////////////////////////////////////////
    @Override
    public void createContentProviders(List<IUiContentProvider> providers, BindingUiContentProviderContext context,
            DatabindingsProvider provider) throws Exception {
        providers.add(new SwtTextEventsUiContentProvider(this));
        super.createContentProviders(providers, context, provider);
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // Utilities
    //
    ////////////////////////////////////////////////////////////////////////////
    public static List<String> getEventsSources(int[] updateEvents) {
        List<String> updateEventStrings = Lists.newArrayList();
        if (updateEvents.length == 1) {
            int updateEventTypeIndex = ArrayUtils.indexOf(VALID_UPDATE_EVENT_TYPES, updateEvents[0]);
            Assert.isTrue(updateEventTypeIndex >= 0 && updateEventTypeIndex < VALID_UPDATE_EVENT_TYPES.length);
            updateEventStrings.add(TEXT_EVENTS[updateEventTypeIndex]);
        } else {
            for (int i = 0; i < updateEvents.length; i++) {
                int eventValue = updateEvents[i];
                int updateEventTypeIndex = ArrayUtils.indexOf(VALID_UPDATE_EVENT_TYPES, eventValue);
                Assert.isTrue(eventValue != SWT.NONE && updateEventTypeIndex >= 0
                        && updateEventTypeIndex < VALID_UPDATE_EVENT_TYPES.length);
                updateEventStrings.add(TEXT_EVENTS[updateEventTypeIndex]);
            }
        }
        return updateEventStrings;
    }
}