com.aptana.ide.xul.DOMLabelProvider.java Source code

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Here is the source code for com.aptana.ide.xul.DOMLabelProvider.java

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/*******************************************************************
 *
 * Licensed Materials - Property of IBM
 * 
 * AJAX Toolkit Framework 6-28-496-8128
 * 
 * (c) Copyright IBM Corp. 2006 All Rights Reserved.
 * 
 * U.S. Government Users Restricted Rights - Use, duplication or 
 * disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 *
 *******************************************************************/
package com.aptana.ide.xul;

import org.eclipse.core.runtime.Preferences;
import org.eclipse.core.runtime.Preferences.IPropertyChangeListener;
import org.eclipse.core.runtime.Preferences.PropertyChangeEvent;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;
import org.mozilla.interfaces.nsIDOMElement;
import org.mozilla.interfaces.nsIDOMNode;

import com.aptana.ide.editor.html.HTMLPlugin;
import com.aptana.ide.editor.html.preferences.IPreferenceConstants;
import com.aptana.ide.xul.DOMContentProvider.MessageNode;

public class DOMLabelProvider extends LabelProvider implements IPropertyChangeListener {

    public Preferences prefs = null;
    public String attrs;

    public DOMLabelProvider() {
        prefs = HTMLPlugin.getDefault().getPluginPreferences();
        prefs.addPropertyChangeListener(this);
        attrs = prefs.getString(IPreferenceConstants.HTMLEDITOR_OUTLINER_ATTRIBUTE_LIST);
    }

    public Image getImage(Object element) {

        switch (((nsIDOMNode) element).getNodeType()) {

        case nsIDOMNode.ELEMENT_NODE:
            return XULPlugin.getDefault().getImage(XULPlugin.ELEMENT_IMG_ID);

        case nsIDOMNode.TEXT_NODE:
            return XULPlugin.getDefault().getImage(XULPlugin.TEXT_IMG_ID);

        default:
            return null;
        }
    }

    public String getText(Object element) {

        // MessageNode(s) do not have images
        if (element instanceof MessageNode)
            return ((MessageNode) element).message;

        nsIDOMNode node = (nsIDOMNode) element;

        StringBuffer buf = new StringBuffer();

        buf.append(node.getNodeName());

        // try to get the id if available
        if (node.getNodeType() == nsIDOMNode.ELEMENT_NODE) {
            try {
                nsIDOMElement e = (nsIDOMElement) node.queryInterface(nsIDOMElement.NS_IDOMELEMENT_IID);
                String[] attributes = attrs.split(" "); //$NON-NLS-1$
                boolean addedColon = false;
                boolean firstAlreadyAdded = false;
                for (int i = 0; i < attributes.length; i++) {
                    String domAttr = e.getAttribute(attributes[i]);
                    if (!(domAttr == null || "".equals(domAttr))) //$NON-NLS-1$
                    {
                        if (!addedColon) {
                            buf.append(" : "); //$NON-NLS-1$
                            addedColon = true;
                        }

                        if (firstAlreadyAdded) {
                            buf.append(" | "); //$NON-NLS-1$
                        } else {
                            firstAlreadyAdded = true;
                        }
                        buf.append(domAttr);
                    }
                }

            } catch (Exception e) {
                // do nothing
            }
        }

        return buf.toString().toLowerCase();
    }

    public void propertyChange(PropertyChangeEvent event) {
        if (event.getProperty().equals(IPreferenceConstants.HTMLEDITOR_OUTLINER_ATTRIBUTE_LIST)) {
            attrs = (String) event.getNewValue();
        }
    }
}