WidgetCacheExtension.java

/*
* 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.web.widget.caching;

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.web.widget.bf.BrowserFieldScreen;

public class WidgetCacheExtension implements WidgetExtension {

    private BrowserFieldScreen _bFieldScreen;

    public String[] getFeatureList() {
        String[] result = new String[ 1 ];
        result[ 0 ] = "blackberry.widgetcache";
        return result;
    }

    public void loadFeature( String feature, String version, Document doc, ScriptEngine scriptEngine ) throws Exception {

        if( feature.equals( "blackberry.widgetcache" ) ) {
            scriptEngine.addExtension( WidgetCacheNamespace.NAME, _bFieldScreen.getWidgetCacheExtension() );
        }

    }

    public void register( WidgetConfig wConfig, BrowserField bField ) {
        _bFieldScreen = (BrowserFieldScreen) ( bField.getScreen() );
    }

    public void unloadFeatures( Document arg0 ) {
        // DO NOTHING
    }

}