/* ******************************************************************************
 * Copyright (c) 2006-2012 XMind Ltd. and others.
 * 
 * This file is a part of XMind 3. XMind releases 3 and
 * above are dual-licensed under the Eclipse Public License (EPL),
 * which is available at http://www.eclipse.org/legal/epl-v10.html
 * and the GNU Lesser General Public License (LGPL), 
 * which is available at http://www.gnu.org/licenses/lgpl.html
 * See http://www.xmind.net/license.html for details.
 * 
 * Contributors:
 *     XMind Ltd. - initial API and implementation
 *******************************************************************************/
package org.xmind.ui.internal.actions;

import java.io.File;

import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.SafeRunner;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.util.SafeRunnable;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IPartListener;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.actions.ActionFactory.IWorkbenchAction;
import org.xmind.ui.internal.MindMapMessages;
import org.xmind.ui.internal.MindMapTemplateManager;
import org.xmind.ui.internal.dialogs.DialogMessages;
import org.xmind.ui.internal.editor.MME;
import org.xmind.ui.internal.editor.MindMapEditor;
import org.xmind.ui.mindmap.MindMapUI;

public class SaveAsTemplateAction extends Action implements IWorkbenchAction,
        IPartListener {

    private IWorkbenchWindow window;

    private MindMapEditor targetEditor;

    public SaveAsTemplateAction(String id, IWorkbenchWindow window) {
        super();
        setId(id);
        this.window = window;
        setText(MindMapMessages.SaveAsTemplate_text);
        setToolTipText(MindMapMessages.SaveAsTemplate_toolTip);
        window.getPartService().addPartListener(this);
    }

    public void run() {
        if (targetEditor == null)
            return;

        SafeRunner.run(new SafeRunnable() {
            public void run() throws Exception {
                targetEditor.doSaveAs(new NullProgressMonitor(),
                        MindMapUI.FILE_EXT_TEMPLATE,
                        DialogMessages.TemplateFilterName);
                IEditorInput input = targetEditor.getEditorInput();
                if (input != null) {
                    File file = MME.getFile(input);
                    if (file != null) {
                        saveTemplateFromFile(file);
                    }
                }
            }
        });

    }

    private void saveTemplateFromFile(File file) {
        MindMapTemplateManager.getInstance().importCustomTemplate(
                file.getAbsolutePath());
    }

    public void dispose() {
        targetEditor = null;
        if (window != null) {
            window.getPartService().removePartListener(this);
            window = null;
        }
    }

    public void partActivated(IWorkbenchPart part) {
        if (part instanceof MindMapEditor) {
            this.targetEditor = (MindMapEditor) part;
        } else {
            this.targetEditor = null;
        }
        setEnabled(this.targetEditor != null);
    }

    public void partBroughtToTop(IWorkbenchPart part) {
    }

    public void partClosed(IWorkbenchPart part) {
        if (part == this.targetEditor) {
            this.targetEditor = null;
            setEnabled(this.targetEditor != null);
        }
    }

    public void partDeactivated(IWorkbenchPart part) {
    }

    public void partOpened(IWorkbenchPart part) {
    }

}