Package blackberry.io

Source Code of blackberry.io.IOExtension

/*
* Copyright 2010-2011 Research In Motion Limited.
*
* Licensed 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 blackberry.io;

import org.w3c.dom.Document;

import net.rim.device.api.browser.field2.BrowserField;
import net.rim.device.api.script.ScriptEngine;
import net.rim.device.api.web.WidgetConfig;
import net.rim.device.api.web.WidgetExtension;

import blackberry.io.dir.DirNamespace;
import blackberry.io.file.FileNamespace;

/**
* JavaScript extension class - represents the blackberry.io namespace
*/
public class IOExtension implements WidgetExtension {

    private static final String FEATURE_BLACKBERRY_IO_FILE = "blackberry.io.file";
    private static final String FEATURE_BLACKBERRY_IO_DIR = "blackberry.io.dir";

    /**
     * @see net.rim.device.api.web.WidgetExtension#register(WidgetConfig, BrowserField)
     */
    public void register( WidgetConfig widgetConfig, BrowserField browserField ) {
    }

    /**
     * @see net.rim.device.api.web.WidgetExtension#loadFeature(String, String, Document, ScriptEngine)
     */
    public void loadFeature( String feature, String version, Document doc, ScriptEngine scriptEngine ) throws Exception {
        Object obj = null;

        if( feature.equals( FEATURE_BLACKBERRY_IO_FILE ) ) {
            obj = new FileNamespace();
        } else if( feature.equals( FEATURE_BLACKBERRY_IO_DIR ) ) {
            obj = new DirNamespace();
        }

        if( obj != null ) {
            scriptEngine.addExtension( feature, obj );
        }
    }

    /**
     * @see net.rim.device.api.web.WidgetExtension#unloadFeatures(Document)
     */
    public void unloadFeatures( Document doc ) {
    }

    /**
     * @see net.rim.device.api.web.WidgetExtension#getFeatureList()
     */
    public String[] getFeatureList() {
        return new String[] { FEATURE_BLACKBERRY_IO_FILE, FEATURE_BLACKBERRY_IO_DIR };
    }

}
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