com.googlecode.osde.internal.editors.outline.GadgetXmlOutlinePage.java Source code

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Here is the source code for com.googlecode.osde.internal.editors.outline.GadgetXmlOutlinePage.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package com.googlecode.osde.internal.editors.outline;

import java.io.IOException;
import javax.xml.parsers.ParserConfigurationException;

import com.googlecode.osde.internal.editors.GadgetXmlEditor;

import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.views.contentoutline.ContentOutlinePage;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;

public class GadgetXmlOutlinePage extends ContentOutlinePage {

    private GadgetXmlEditor editor;

    public GadgetXmlOutlinePage(GadgetXmlEditor editor) {
        super();
        this.editor = editor;
    }

    @Override
    public void createControl(Composite parent) {
        super.createControl(parent);
        TreeViewer treeViewer = getTreeViewer();
        treeViewer.setContentProvider(new GadgetXmlOutlineContentProvider());
        treeViewer.setLabelProvider(new GadgetXmlOutlineLabelProvider());
        treeViewer.addSelectionChangedListener(new ISelectionChangedListener() {
            public void selectionChanged(SelectionChangedEvent event) {
                IStructuredSelection structured = (IStructuredSelection) event.getSelection();
                ElementModel model = (ElementModel) structured.getFirstElement();
                if (model != null) {
                    int lineNumber = model.getLineNumber();
                    editor.activateSourceEditor(lineNumber);
                }
            }
        });
        //
        try {
            String source = editor.getSource();
            ElementModel module = new GadgetXmlParser().parse(source);
            treeViewer.setInput(module);
            treeViewer.expandAll();
        } catch (SAXParseException e) {
            treeViewer.setInput(null);
        } catch (SAXException e) {
            treeViewer.setInput(null);
        } catch (ParserConfigurationException e) {
            treeViewer.setInput(null);
        } catch (IOException e) {
            treeViewer.setInput(null);
        }
    }

    public void refresh() {
        TreeViewer treeViewer = getTreeViewer();
        try {
            String source = editor.getSource();
            ElementModel module = new GadgetXmlParser().parse(source);
            treeViewer.setInput(module);
            treeViewer.expandAll();
        } catch (SAXParseException e) {
            treeViewer.setInput(null);
        } catch (SAXException e) {
            treeViewer.setInput(null);
        } catch (ParserConfigurationException e) {
            treeViewer.setInput(null);
        } catch (IOException e) {
            treeViewer.setInput(null);
        }
    }

}