📄 imagemap.jsp
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<%-- Copyright 2004-2005 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.--%><!-- Copyright 2004 Sun Microsystems, Inc. All Rights Reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistribution in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of Sun Microsystems, Inc. or the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission. This software is provided "AS IS," without a warranty of any kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. You acknowledge that this software is not designed, licensed or intended for use in the design, construction, operation or maintenance of any nuclear facility.--><%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %><%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %><%@ taglib uri="http://java.sun.com/jsf/demo/components" prefix="d" %><f:view><html><head><title>Welcome to JavaServer Faces</title></head><body> <f:loadBundle basename="demo.model.Resources" var="mapBundle"/> <h:form> <table> <tr><td> <h:outputText id="welcomeLabel" value="#{mapBundle.welcomeLabel}" /> </td></tr> <tr><td> <h:graphicImage id="mapImage" url="/images/world.gif" usemap="#worldMap"/> <d:map id="worldMap" actionListener="#{imageMap.processAreaSelected}" immediate="true" current="NAmericas"> <d:area id="NAmericas" value="#{NA}" onmouseover="/images/world_namer.gif" onmouseout="/images/world.gif" targetImage="mapImage"/> <d:area id="SAmericas" value="#{SA}" onmouseover="/images/world_samer.gif" onmouseout="/images/world.gif" targetImage="mapImage"/> <d:area id="Finland" value="#{finA}" onmouseover="/images/world_finland.gif" onmouseout="/images/world.gif" targetImage="mapImage"/> <d:area id="Germany" value="#{gerA}" onmouseover="/images/world_germany.gif" onmouseout="/images/world.gif" targetImage="mapImage"/> <d:area id="France" value="#{fraA}" onmouseover="/images/world_france.gif" onmouseout="/images/world.gif" targetImage="mapImage"/> </d:map> </td></tr> </table><hr><a href='<%= request.getContextPath() + "/index.jsp" %>'>Back</a> to home page.<h1>How to Use this Component</h1><p>This component renders a clickable image map of the world and regionscan be selected to change the locale.</p><p>You can mouse over and click on some parts of the world that speakU.S. English, French, German, Finnish, and Latin American Spanish. Thiswill cause the appropriate Locale to be set into the application,causing the proper ResourceBundle lookup.</p><h1>Custom Tags / Components</h1><p>The <code>MapComponent</code> component is driven by the <code>map</code>tag, and it keeps track of the the selected area on the map. It determinesthe selected area from the incoming request, and fires an<code>AreaSelectedEvent</code> whenever the selected area is changed. <code>AreaSelectedEvent</code>is an <code>ActionEvent</code>. A method binding reference expression tag attribute is used to reference a method in the backing file bean (imagemap), and that method listens for action events. The listener method <code>processAreaSelected</code>,receives the <code>ActionEvent</code> and sets the locale accordingly.<p>The <code>AreaComponent</code> component is driven by the <code>area</code>tag. It uses Javascript events to visually show the selected area, and it sendsthe identifier of the selected area as part of the request. This tag must benested within an <code><d:map></code> tag.</p><h2>JSP Attributes</h2><p>Attributes described below apply to map tag.Attributes can represent values directly or point to them via value bindingexpressions except for actionListener attribute that points to amethod reference. <table border="1"><tr><th>JSP Attribute Name</th><th>What it Does</th></tr><tr><td><code>actionListener</code></td><td>Method binding reference that refers to a method that sets the locale from information contained in the <code>AreaSelectedEvent</code>.</td></tr><tr><td><code>immediate</code></td><td>A flag indicating that the default ActionListener should execute immediately (that is, during the Apply Request Values phase of the request processing lifecycle, instead of waiting for Invoke Application phase). The default value of this property must be false.</td></tr><tr><td><code>current</code></td><td>This refers to the current selected area on the map.</td></tr></table><hr></body></html></h:form></f:view>⌨️ 快捷键说明
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