org.rulez.magwas.zenta.editor.model.impl.EditorModelManager.java Source code

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Here is the source code for org.rulez.magwas.zenta.editor.model.impl.EditorModelManager.java

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/**
 * This program and the accompanying materials
 * are made available under the terms of the License
 * which accompanies this distribution in the file LICENSE.txt
 */
package org.rulez.magwas.zenta.editor.model.impl;

import java.io.File;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
import org.rulez.magwas.zenta.editor.model.EditorModelManagerNoGUI;
import org.rulez.magwas.zenta.editor.model.compatibility.IncompatibleModelException;
import org.rulez.magwas.zenta.editor.model.compatibility.LaterModelVersionException;
import org.rulez.magwas.zenta.model.IZentaModel;

/**
 * Editor Model Manager.<p>
 * <p>
 * Acts as an adapter to the Zenta Models passing on notifications to listeners
 * so that clients only have to register here once rather than for each model.<p>
 * Also can pass on arbitrary PropertyChangeEvents to registered listeners.<br>
 * Also manages CommandStacks for models.<br>
 * Also handles persistence of models.
 * 
 * @author Phillip Beauvoir
 */
public class EditorModelManager extends EditorModelManagerNoGUI {

    public EditorModelManager() {
        PlatformUI.getWorkbench().addWorkbenchListener(workBenchListener);
    }

    @Override
    public boolean laterModelDialog(File file, LaterModelVersionException ex) {
        boolean answer = MessageDialog.openQuestion(Display.getCurrent().getActiveShell(),
                Messages.EditorModelManager_4, NLS.bind(Messages.EditorModelManager_5, file, ex.getVersion()));
        return answer;
    }

    @Override
    public void incompatibleDialog(File file, IncompatibleModelException ex1) {
        MessageDialog.openError(Display.getCurrent().getActiveShell(), Messages.EditorModelManager_2,
                NLS.bind(Messages.EditorModelManager_3, file) + "\n" + ex1.getMessage()); //$NON-NLS-1$
    }

    @Override
    public int saveModelDialog(IZentaModel model) {
        MessageDialog dialog = new MessageDialog(Display.getCurrent().getActiveShell(),
                Messages.EditorModelManager_6, null, NLS.bind(Messages.EditorModelManager_7, model.getName()),
                MessageDialog.QUESTION, new String[] { IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL,
                        IDialogConstants.CANCEL_LABEL },
                0);
        return dialog.open();
    }

    @Override
    public boolean sureToOverwriteDialog(File file) {
        Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
        boolean result = MessageDialog.openQuestion(shell, Messages.EditorModelManager_10,
                NLS.bind(Messages.EditorModelManager_11, file));
        return result;
    }

    @Override
    public void alreadyOpenDialog(File file) {
        Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
        MessageDialog.openWarning(shell, Messages.EditorModelManager_8,
                NLS.bind(Messages.EditorModelManager_9, file));
    }

    @Override
    public String askSavePath() {
        // On Mac if the app is minimised in the dock Display.getCurrent().getActiveShell() will return null
        Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
        shell.setActive(); // Get focus on Mac

        FileDialog dialog = new FileDialog(shell, SWT.SAVE);
        dialog.setFilterExtensions(new String[] { ZENTA_FILE_WILDCARD, "*.*" }); //$NON-NLS-1$
        String path = dialog.open();
        if (path == null) {
            return null;
        }

        // Only Windows adds the extension by default
        if (dialog.getFilterIndex() == 0 && !path.endsWith(ZENTA_FILE_EXTENSION)) {
            path += ZENTA_FILE_EXTENSION;
        }
        return path;
    }

}