org.eclipse.wst.xml.ui.internal.actions.CleanupActionXMLDelegate.java Source code

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Here is the source code for org.eclipse.wst.xml.ui.internal.actions.CleanupActionXMLDelegate.java

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/*******************************************************************************
 * Copyright (c) 2005, 2006 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *     
 *******************************************************************************/

package org.eclipse.wst.xml.ui.internal.actions;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.swt.widgets.Event;
import org.eclipse.ui.IActionDelegate2;
import org.eclipse.ui.IEditorActionDelegate;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.texteditor.ITextEditor;
import org.eclipse.wst.sse.core.StructuredModelManager;
import org.eclipse.wst.sse.core.internal.cleanup.IStructuredCleanupProcessor;
import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel;
import org.eclipse.wst.sse.ui.internal.SSEUIMessages;
import org.eclipse.wst.xml.core.internal.cleanup.CleanupProcessorXML;
import org.eclipse.wst.xml.ui.internal.XMLUIMessages;

/**
 * Cleanup action delegate for CSS editor
 */
public class CleanupActionXMLDelegate implements IEditorActionDelegate, IActionDelegate2, IViewActionDelegate {
    private IEditorPart fEditor;
    private IStructuredCleanupProcessor fCleanupProcessor;

    public void setActiveEditor(IAction action, IEditorPart targetEditor) {
        fEditor = targetEditor;
    }

    public void dispose() {
        // nulling out just in case
        fEditor = null;
        fCleanupProcessor = null;
    }

    public void init(IAction action) {
        if (action != null) {
            action.setText(XMLUIMessages.CleanupDocument_label);
            action.setToolTipText(XMLUIMessages.CleanupDocument_tooltip);
            action.setDescription(XMLUIMessages.CleanupDocument_description);
        }
    }

    public void runWithEvent(IAction action, Event event) {
        run(action);
    }

    public void init(IViewPart view) {
        // do nothing
    }

    public void run(IAction action) {
        if (fEditor instanceof ITextEditor) {
            final ITextEditor editor = (ITextEditor) fEditor;
            Dialog cleanupDialog = new CleanupDialogXML(editor.getSite().getShell());
            if (cleanupDialog.open() == Window.OK) {
                // setup runnable
                Runnable runnable = new Runnable() {
                    public void run() {
                        IStructuredCleanupProcessor cleanupProcessor = getCleanupProcessor();
                        if (cleanupProcessor != null) {
                            IStructuredModel model = null;
                            try {
                                model = StructuredModelManager.getModelManager().getExistingModelForEdit(
                                        editor.getDocumentProvider().getDocument(editor.getEditorInput()));
                                if (model != null) {
                                    cleanupProcessor.cleanupModel(model);
                                }
                            } finally {
                                if (model != null) {
                                    model.releaseFromEdit();
                                }
                            }
                        }
                    }
                };

                // TODO: make independent of 'model'.
                IStructuredModel model = null;
                try {
                    model = StructuredModelManager.getModelManager().getExistingModelForEdit(
                            editor.getDocumentProvider().getDocument(editor.getEditorInput()));
                    if (model != null) {
                        // begin recording
                        ITextSelection selection = (ITextSelection) editor.getSelectionProvider().getSelection();
                        model.beginRecording(this, SSEUIMessages.Cleanup_Document_UI_,
                                SSEUIMessages.Cleanup_Document_UI_, selection.getOffset(), selection.getLength());

                        // tell the model that we are about to make a big
                        // model change
                        model.aboutToChangeModel();

                        // run
                        BusyIndicator.showWhile(
                                fEditor.getEditorSite().getWorkbenchWindow().getShell().getDisplay(), runnable);
                    }
                } finally {
                    if (model != null) {
                        // tell the model that we are done with the big
                        // model
                        // change
                        model.changedModel();

                        // end recording
                        ITextSelection selection = (ITextSelection) editor.getSelectionProvider().getSelection();
                        model.endRecording(this, selection.getOffset(), selection.getLength());
                        model.releaseFromEdit();
                    }
                }
            }
        }
    }

    public void selectionChanged(IAction action, ISelection selection) {
        // do nothing
    }

    IStructuredCleanupProcessor getCleanupProcessor() {
        if (fCleanupProcessor == null) {
            fCleanupProcessor = new CleanupProcessorXML();
        }

        return fCleanupProcessor;
    }
}