wicketdnd.IECursorFix.java Source code

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Here is the source code for wicketdnd.IECursorFix.java

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/*
 * Copyright 2009 Sven Meier
 *
 * 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 wicketdnd;

import org.apache.wicket.Component;
import org.apache.wicket.behavior.Behavior;
import org.apache.wicket.markup.html.IHeaderResponse;
import org.apache.wicket.protocol.http.request.WebClientInfo;
import org.apache.wicket.request.cycle.RequestCycle;
import org.apache.wicket.request.resource.JavaScriptResourceReference;
import org.apache.wicket.request.resource.ResourceReference;

/**
 * Fix for cursors in IE. <br>
 * IE resolves relative URLs in CSS cursor styles against the page's location
 * instead of the CSS's location (note: this failure affects cursor images
 * only). This javascript makes these URLs absolute by prepending the containing
 * CSS's location.
 * 
 * @author Sven Meier
 */
public class IECursorFix extends Behavior {

    private static final long serialVersionUID = 1L;

    public static final ResourceReference JS = new JavaScriptResourceReference(IECursorFix.class, "iecursor.js");

    @Override
    public void renderHead(Component component, IHeaderResponse response) {
        WebClientInfo info = new WebClientInfo(RequestCycle.get());
        if (info.getProperties().isBrowserInternetExplorer()) {
            response.renderJavaScriptReference(JS);

            String initJS = "IECursor.fix();}";
            response.renderOnDomReadyJavaScript(initJS);
        }
    }
}