/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit.wicket.panels;
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import java.util.List;
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import org.apache.wicket.Component;
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import org.apache.wicket.ResourceReference;
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import org.apache.wicket.Response;
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import org.apache.wicket.markup.ComponentTag;
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import org.apache.wicket.markup.MarkupStream;
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import org.apache.wicket.markup.html.WebMarkupContainer;
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import org.apache.wicket.markup.html.panel.Fragment;
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import org.apache.wicket.protocol.http.ClientProperties;
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import org.apache.wicket.protocol.http.WebRequestCycle;
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import org.apache.wicket.protocol.http.WebSession;
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import org.apache.wicket.protocol.http.request.WebClientInfo;
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import org.apache.wicket.request.ClientInfo;
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import org.apache.wicket.util.value.IValueMap;
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/**
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* https://cwiki.apache.org/WICKET/object-container-adding-flash-to-a-wicket-application.html
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*/
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public abstract class ObjectContainer extends WebMarkupContainer {
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private static final long serialVersionUID = 1L;
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// Some general attributes for the object tag:
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private static final String ATTRIBUTE_CONTENTTYPE = "type";
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private static final String ATTRIBUTE_CLASSID = "classid";
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private static final String ATTRIBUTE_CODEBASE = "codebase";
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// This is used for browser specific adjustments
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private ClientProperties clientProperties = null;
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public ObjectContainer(String id) {
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super(id);
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}
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// Set an attribute/property
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public abstract void setValue(String name, String value);
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// Get an attribute/property
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public abstract String getValue(String name);
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// Set the object's content type
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protected abstract String getContentType();
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// Set the object's clsid (for IE)
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protected abstract String getClsid();
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// Where to get the browser plugin (for IE)
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protected abstract String getCodebase();
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// Object's valid attribute names
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protected abstract List<String> getAttributeNames();
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// Object's valid parameter names
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protected abstract List<String> getParameterNames();
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// Utility function to get the URL for the object's data
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protected String resolveResource(String src) {
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// if it's an absolute path, return it:
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if (src.startsWith("/") || src.startsWith("http://") || src.startsWith("https://"))
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return (src);
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// use the parent container class to resolve the resource reference
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Component parent = getParent();
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if (parent instanceof Fragment) {
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// must check for fragment, otherwise we end up in Wicket namespace
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parent = parent.getParent();
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}
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if (parent != null) {
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ResourceReference resRef = new ResourceReference(parent.getClass(), src, false);
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return (urlFor(resRef).toString());
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}
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return (src);
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}
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public void onComponentTag(ComponentTag tag) {
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super.onComponentTag(tag);
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// get the attributes from the html-source
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IValueMap attributeMap = tag.getAttributes();
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// set the content type
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String contentType = getContentType();
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if (contentType != null && !"".equals(contentType))
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attributeMap.put(ATTRIBUTE_CONTENTTYPE, contentType);
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// set clsid and codebase for IE
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if (getClientProperties().isBrowserInternetExplorer()) {
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String clsid = getClsid();
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String codeBase = getCodebase();
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if (clsid != null && !"".equals(clsid))
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attributeMap.put(ATTRIBUTE_CLASSID, clsid);
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if (codeBase != null && !"".equals(codeBase))
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attributeMap.put(ATTRIBUTE_CODEBASE, codeBase);
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}
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// add all attributes
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for (String name : getAttributeNames()) {
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String value = getValue(name);
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if (value != null)
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attributeMap.put(name, value);
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}
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}
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public void onComponentTagBody(MarkupStream markupStream, ComponentTag openTag) {
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Response response = getResponse();
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response.write("\n");
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// add all object's parameters:
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for (String name : getParameterNames()) {
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String value = getValue(name);
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if (value != null) {
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response.write("<param name=\"");
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response.write(name);
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response.write("\" value=\"");
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response.write(value);
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response.write("\"/>\n");
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}
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}
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super.onComponentTagBody(markupStream, openTag);
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}
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// shortcut to the client properties:
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protected ClientProperties getClientProperties() {
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if (clientProperties == null) {
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ClientInfo clientInfo = WebSession.get().getClientInfo();
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if (clientInfo == null || !(clientInfo instanceof WebClientInfo)) {
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clientInfo = new WebClientInfo((WebRequestCycle) getRequestCycle());
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WebSession.get().setClientInfo(clientInfo);
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}
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clientProperties = ((WebClientInfo) clientInfo).getProperties();
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}
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return (clientProperties);
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}
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}
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