org.fusesource.tools.core.ui.TextViewerComponent.java Source code

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Here is the source code for org.fusesource.tools.core.ui.TextViewerComponent.java

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/*******************************************************************************
 * Copyright (c) 2009, 2010 Progress Software Corporation.
 * 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
 ******************************************************************************/
// Copyright (c) 2009 Progress Software Corporation.  
package org.fusesource.tools.core.ui;

import org.eclipse.emf.ecore.util.FeatureMap;
import org.eclipse.emf.ecore.util.FeatureMap.Entry;
import org.eclipse.emf.ecore.xml.type.AnyType;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.jface.text.source.SourceViewer;
import org.eclipse.jface.text.source.SourceViewerConfiguration;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.contexts.IContextActivation;
import org.eclipse.ui.contexts.IContextService;
import org.eclipse.ui.editors.text.TextSourceViewerConfiguration;
import org.eclipse.wst.sse.core.StructuredModelManager;
import org.eclipse.wst.sse.ui.StructuredTextViewerConfiguration;
import org.eclipse.wst.sse.ui.internal.StructuredTextViewer;
import org.eclipse.wst.sse.ui.internal.provisional.style.LineStyleProvider;
import org.eclipse.wst.xml.core.internal.provisional.contenttype.ContentTypeIdForXML;
import org.eclipse.wst.xml.ui.StructuredTextViewerConfigurationXML;
import org.fusesource.tools.core.ui.viewer.actions.SourceViewerContextMenuProvider;

@SuppressWarnings("restriction")
public class TextViewerComponent {

    public static SourceViewer createTextViewer(Composite parent, int style) {
        return createTextViewer(parent, null, style);
    }

    public static StructuredTextViewer createXMLViewer(Composite parent, int style) {
        return createXMLViewer(parent, null, style);
    }

    public static SourceViewer createSourceViewer(Composite composite, Object data, int style) {

        SourceViewer sourceViewer = new SourceViewer(composite, null, null, false, style);
        sourceViewer.setEditable(false);
        sourceViewer.setDocument(new Document(""));
        sourceViewer.configure(new TextSourceViewerConfiguration());
        sourceViewer.getTextWidget().addFocusListener(new FocusListener() {
            private IContextActivation context;

            public void focusGained(FocusEvent e) {
                IContextService contextService = (IContextService) PlatformUI.getWorkbench()
                        .getService(IContextService.class);
                context = contextService.activateContext("org.eclipse.ui.textEditorScope");
            }

            public void focusLost(FocusEvent e) {
                IContextService contextService = (IContextService) PlatformUI.getWorkbench()
                        .getService(IContextService.class);
                contextService.deactivateContext(context);
            }

        });
        sourceViewer.getDocument().set(data.toString());
        sourceViewer.setEditable(true);
        addContextMenu(sourceViewer);
        return sourceViewer;
    }

    protected static void addContextMenu(SourceViewer sourceViewer) {
        new SourceViewerContextMenuProvider(sourceViewer);
    }

    public static SourceViewer createTextViewer(Composite parent, Object data, int style) {
        data = getData(data);
        return createSourceViewer(parent, data, style);
    }

    public static StructuredTextViewer createXMLViewer(Composite parent, Object data, int style) {
        data = getData(data);
        SourceViewerConfiguration sourceViewerConfiguration = new StructuredTextViewerConfiguration() {
            StructuredTextViewerConfiguration baseConfiguration = new StructuredTextViewerConfigurationXML();

            @Override
            public String[] getConfiguredContentTypes(ISourceViewer sourceViewer) {
                return baseConfiguration.getConfiguredContentTypes(sourceViewer);
            }

            @Override
            public LineStyleProvider[] getLineStyleProviders(ISourceViewer sourceViewer, String partitionType) {
                return baseConfiguration.getLineStyleProviders(sourceViewer, partitionType);
            }
        };
        StructuredTextViewer structuredViewer = new StructuredTextViewer(parent, null, null, false, style);
        (structuredViewer).getTextWidget().setFont(JFaceResources.getFont("org.eclipse.wst.sse.ui.textfont"));
        org.eclipse.wst.sse.core.internal.provisional.IStructuredModel scratchModel = StructuredModelManager
                .getModelManager().createUnManagedStructuredModelFor(ContentTypeIdForXML.ContentTypeID_XML);
        IDocument document = scratchModel.getStructuredDocument();
        structuredViewer.configure(sourceViewerConfiguration);
        structuredViewer.setDocument(document);
        structuredViewer.getDocument().set(data.toString());
        new SourceViewerContextMenuProvider(structuredViewer);
        return structuredViewer;
    }

    private static Object getData(Object data) {
        if (data == null) {
            data = "";
        }
        if (data instanceof AnyType) {
            data = getData((AnyType) data);
        }

        data = ((String) data).trim();
        return data;
    }

    static String getData(AnyType object) {
        FeatureMap mixed = object.getMixed();
        for (Entry entry : mixed) {
            if (entry.getValue() instanceof String) {
                return ((String) entry.getValue()).trim();
            }
        }
        return "";
    }
}