SpecfileReconcilingStrategy.java

/*******************************************************************************
 * Copyright (c) 2007, 2017 Red Hat 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:
 *    Red Hat - initial API and implementation
 *    Alphonse Van Assche
 *******************************************************************************/

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

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.reconciler.DirtyRegion;
import org.eclipse.jface.text.reconciler.IReconcilingStrategy;
import org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension;
import org.eclipse.linuxtools.internal.rpm.ui.editor.outline.SpecfileContentOutlinePage;
import org.eclipse.linuxtools.rpm.ui.editor.parser.Specfile;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.texteditor.IDocumentProvider;
import org.eclipse.ui.views.contentoutline.IContentOutlinePage;

public class SpecfileReconcilingStrategy implements IReconcilingStrategy, IReconcilingStrategyExtension {

    private SpecfileFoldingStructureProvider sFoldingStructureProvider;

    SpecfileContentOutlinePage outline;
    SpecfileEditor editor;
    IDocumentProvider documentProvider;

    public SpecfileReconcilingStrategy(SpecfileEditor editor) {
        outline= (SpecfileContentOutlinePage) editor.getAdapter(IContentOutlinePage.class);
        this.editor = editor;
        documentProvider = editor.getDocumentProvider();
        sFoldingStructureProvider= new SpecfileFoldingStructureProvider(editor);
    }


    @Override
    public void setDocument(IDocument document) {
        sFoldingStructureProvider.setDocument(document);
    }

    @Override
    public void setProgressMonitor(IProgressMonitor monitor) {
        sFoldingStructureProvider.setProgressMonitor(monitor);
    }

    @Override
    public void reconcile(DirtyRegion dirtyRegion, IRegion subRegion) {
        reconcile();
    }

    @Override
    public void initialReconcile() {
        reconcile();
    }

    private void reconcile() {
        Specfile specfile = editor.getSpecfile();
        if (specfile != null) {
            editor.setSpecfile(editor.getParser().parse(documentProvider
                    .getDocument(editor.getEditorInput())));
            outline.update();
            updateFolding();
            updateEditor();
        }
    }

    @Override
    public void reconcile(IRegion partition) {
        reconcile();
    }

    private void updateEditor() {
        Shell shell= editor.getSite().getShell();
        if (!(shell == null || shell.isDisposed())) {
            shell.getDisplay().asyncExec(() -> editor.setSpecfile(editor.getParser().parse(documentProvider
			        .getDocument(editor.getEditorInput()))));
        }
    }

    private void updateFolding() {
        sFoldingStructureProvider.updateFoldingRegions();
    }
}