| <!DOCTYPE html> |
| <html lang="en"> |
| <head> |
| <meta charset="utf-8"> |
| <meta name="viewport" content="width=device-width,initial-scale=1"> |
| <title>Highlight Current Row :: Apache Isis</title> |
| <link rel="canonical" href="https://isis.apache.org/vw/2.0.0-M3/hints-and-tips/highlight-current-row.html"> |
| <meta name="generator" content="Antora 2.2.0"> |
| <link rel="stylesheet" href="../../../_/css/site.css"> |
| <link rel="stylesheet" href="../../../_/css/site-custom.css"> |
| <link href="https://fonts.googleapis.com/css?family=Open+Sans:300,300i,400,400i,700,700i|Raleway:300,400,500,700,800|Montserrat:300,400,700" rel="stylesheet"> |
| <link rel="home" href="https://isis.apache.org" title="Apache Isis"> |
| </head> |
| <body class="article"> |
| <header class="header"> |
| <nav class="navbar"> |
| <div class="navbar-brand"> |
| <a class="navbar-item" href="https://isis.apache.org"> |
| <span class="icon"> |
| <img src="../../../_/img/isis-logo-48x48.png"></img> |
| </span> |
| <span>Apache Isis</span> |
| </a> |
| <button class="navbar-burger" data-target="topbar-nav"> |
| <span></span> |
| <span></span> |
| <span></span> |
| </button> |
| </div> |
| <div id="topbar-nav" class="navbar-menu"> |
| <a class="navbar-end"> |
| <div class="navbar-item has-dropdown is-hoverable"> |
| <a class="navbar-link" href="#">Quick Start</a> |
| <div class="navbar-dropdown"> |
| <span class="navbar-item navbar-heading">Starter Apps</span> |
| <a class="navbar-item" href="../../../docs/2.0.0-M3/starters/helloworld.html">Hello World</a> |
| <a class="navbar-item" href="../../../docs/2.0.0-M3/starters/simpleapp.html">Simple App</a> |
| <hr class="navbar-divider"/> |
| <span class="navbar-item navbar-heading">Demos & Tutorials</span> |
| <a class="navbar-item" href="../../../docs/2.0.0-M3/demo/about.html">Demo App</a> |
| <a class="navbar-item" href="https://danhaywood.gitlab.io/isis-petclinic-tutorial-docs/petclinic/1.16.2/intro.html">Petclinic (tutorial)</a> |
| <hr class="navbar-divider"/> |
| <span class="navbar-item navbar-heading">Resources</span> |
| <a class="navbar-item" href="../../../docs/2.0.0-M3/resources/cheatsheet.html">Cheatsheet</a> |
| <a class="navbar-item" href="../../../docs/2.0.0-M3/resources/icons.html">Icons</a> |
| </div> |
| </div> |
| <div class="navbar-item has-dropdown is-hoverable"> |
| <a class="navbar-link" href="#">Guides</a> |
| <div class="navbar-dropdown"> |
| <span class="navbar-item navbar-heading">Development</span> |
| <a class="navbar-item" href="../../../setupguide/2.0.0-M3/about.html">Setup Guide</a> |
| <hr class="navbar-divider"/> |
| <span class="navbar-item navbar-heading">Core</span> |
| <a class="navbar-item" href="../../../userguide/2.0.0-M3/about.html">User Guide</a> |
| <a class="navbar-item" href="../../../refguide/2.0.0-M3/about.html">Reference Guide</a> |
| <a class="navbar-item" href="../../../testing/2.0.0-M3/about.html">Testing Guide</a> |
| </div> |
| </div> |
| <div class="navbar-item has-dropdown is-hoverable"> |
| <a class="navbar-link" href="#">Libraries</a> |
| <div class="navbar-dropdown"> |
| <span class="navbar-item navbar-heading">For Use in Apps</span> |
| <a class="navbar-item" href="../../../subdomains/2.0.0-M3/about.html">Subdomain Libraries</a> |
| <a class="navbar-item" href="../../../valuetypes/2.0.0-M3/about.html">Value Types</a> |
| <hr class="navbar-divider"/> |
| <span class="navbar-item navbar-heading">Integrate between Apps</span> |
| <a class="navbar-item" href="../../../mappings/2.0.0-M3/about.html">Bounded Context Mapping Libraries</a> |
| <hr class="navbar-divider"/> |
| <span class="navbar-item navbar-heading">Other</span> |
| <a class="navbar-item" href="../../../incubator/2.0.0-M3/about.html">Incubator</a> |
| <a class="navbar-item" href="../../../legacy/2.0.0-M3/about.html">Legacy</a> |
| </div> |
| </div> |
| <div class="navbar-item has-dropdown is-hoverable"> |
| <a class="navbar-link" href="#">Components</a> |
| <div class="navbar-dropdown"> |
| <span class="navbar-item navbar-heading">Viewers</span> |
| <a class="navbar-item" href="../../../vw/2.0.0-M3/about.html">Wicket UI</a> |
| <a class="navbar-item" href="../../../vro/2.0.0-M3/about.html">Restful Objects (REST)</a> |
| <hr class="navbar-divider"/> |
| <span class="navbar-item navbar-heading">Security</span> |
| <a class="navbar-item" href="../../../security/2.0.0-M3/about.html">Security Guide</a> |
| <hr class="navbar-divider"/> |
| <span class="navbar-item navbar-heading">Persistence</span> |
| <a class="navbar-item" href="../../../pjdo/2.0.0-M3/about.html">DataNucleus (JDO)</a> |
| <hr class="navbar-divider"/> |
| <span class="navbar-item navbar-heading">Extensions</span> |
| <a class="navbar-item" href="../../../extensions/2.0.0-M3/about.html">Extensions Catalog</a> |
| </div> |
| </div> |
| <div class="navbar-item has-dropdown is-hoverable"> |
| <a class="navbar-link" href="#">Support</a> |
| <div class="navbar-dropdown"> |
| <span class="navbar-item navbar-heading">Contact</span> |
| <a class="navbar-item" href="../../../docs/2.0.0-M3/support/slack-channel.html">Slack</a> |
| <a class="navbar-item" href="../../../docs/2.0.0-M3/support/mailing-list.html">Mailing Lists</a> |
| <a class="navbar-item" href="https://issues.apache.org/jira/browse/ISIS">JIRA</a> |
| <a class="navbar-item" href="https://stackoverflow.com/questions/tagged/isis">Stack Overflow</a> |
| <hr class="navbar-divider"/> |
| <span class="navbar-item navbar-heading">Releases</span> |
| <a class="navbar-item" href="../../../docs/2.0.0-M3/downloads/how-to.html">Downloads</a> |
| <a class="navbar-item" href="../../../relnotes/2.0.0-M3/about.html">Release Notes</a> |
| <a class="navbar-item" href="../../../docs/2.0.0-M3/archive/1-x.html">Archive (1.x)</a> |
| <hr class="navbar-divider"/> |
| <span class="navbar-item navbar-heading">Framework</span> |
| <a class="navbar-item" href="../../../conguide/2.0.0-M3/about.html">Contributors' Guide</a> |
| <a class="navbar-item" href="../../../comguide/2.0.0-M3/about.html">Committers' Guide</a> |
| <a class="navbar-item" href="../../../core/2.0.0-M3/about.html">Core Design</a> |
| </div> |
| </div> |
| <div class="navbar-item has-dropdown is-hoverable"> |
| <a class="navbar-link" href="#">ASF</a> |
| <div class="navbar-dropdown"> |
| <a class="navbar-item" href="http://www.apache.org/">Apache Homepage</a> |
| <a class="navbar-item" href="https://www.apache.org/events/current-event">Events</a> |
| <a class="navbar-item" href="https://www.apache.org/licenses/">Licenses</a> |
| <a class="navbar-item" href="https://www.apache.org/security/">Security</a> |
| <a class="navbar-item" href="https://www.apache.org/foundation/sponsorship.html">Sponsorship</a> |
| <a class="navbar-item" href="https://www.apache.org/foundation/thanks.html">Thanks</a> |
| <hr class="navbar-divider"/> |
| <a class="navbar-item" href="https://whimsy.apache.org/board/minutes/Isis.html">PMC board minutes</a> |
| </div> |
| </div> |
| <a class="navbar-item" href="../../../docs/2.0.0-M3/about.html"> |
| <span class="icon"> |
| <img src="../../../_/img/home.png"></img> |
| </span> |
| </a> |
| </div> |
| </div> |
| </nav> |
| </header> |
| <div class="body "> |
| <div class="nav-container" data-component="vw" data-version="2.0.0-M3"> |
| <aside class="nav"> |
| <div class="panels"> |
| <div class="nav-panel-pagination"> |
| <a class="page-previous disabled" rel="prev" href="" title=""><span></span></a> |
| <a class="page-next disabled" rel="next" |
| href="" title=""><span></span></a> |
| <!-- |
| page.parent doesn't seem to be set... |
| <a class="page-parent disabled" rel="prev" href="" title=""><span></span></a> |
| --> |
| </div> |
| <div class="nav-panel-menu is-active" data-panel="menu"> |
| <nav class="nav-menu"> |
| <h3 class="title"><a href="../about.html">Wicket Viewer</a></h3> |
| <ul class="nav-list"> |
| <li class="nav-item" data-depth="0"> |
| <ul class="nav-list"> |
| <li class="nav-item" data-depth="1"> |
| <a class="nav-link" href="../configuration-properties.html">Configuration Properties</a> |
| </li> |
| <li class="nav-item" data-depth="1"> |
| <a class="nav-link" href="../features.html">End-user Features</a> |
| </li> |
| <li class="nav-item" data-depth="1"> |
| <a class="nav-link" href="../security.html">Security</a> |
| </li> |
| <li class="nav-item" data-depth="1"> |
| <a class="nav-link" href="../customisation.html">Customisation</a> |
| </li> |
| <li class="nav-item" data-depth="1"> |
| <a class="nav-link" href="../extending.html">Extending</a> |
| </li> |
| <li class="nav-item" data-depth="1"> |
| <a class="nav-link" href="../hints-and-tips.html">Hints-n-Tips</a> |
| </li> |
| <li class="nav-item" data-depth="1"> |
| <button class="nav-item-toggle"></button> |
| <span class="nav-text">Extensions</span> |
| <ul class="nav-list"> |
| <li class="nav-item" data-depth="2"> |
| <a class="nav-link" href="../exceldownload/about.html">Excel Download</a> |
| </li> |
| <li class="nav-item" data-depth="2"> |
| <a class="nav-link" href="../fullcalendar/about.html">fullcalendar</a> |
| </li> |
| <li class="nav-item" data-depth="2"> |
| <a class="nav-link" href="../gmap3/about.html">GMap3</a> |
| </li> |
| <li class="nav-item" data-depth="2"> |
| <a class="nav-link" href="../pdfjs/about.html">pdf.js</a> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </nav> |
| </div> |
| <div class="nav-panel-explore" data-panel="explore"> |
| <div class="context"> |
| <span class="title">Wicket Viewer</span> |
| <span class="version">2.0.0-M3</span> |
| </div> |
| <ul class="components"> |
| <li class="component"> |
| <span class="title"> </span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../docs/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">BC Mappings Catalog</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../mappings/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Committers' Guide</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../comguide/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Contributors' Guide</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../conguide/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Design Docs</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../core/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Extensions Catalog</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../extensions/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Incubator Catalog</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../incubator/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">JDO/DataNucleus</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../pjdo/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Legacy Catalog</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../legacy/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Reference Guide</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../refguide/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Release Notes</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../relnotes/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Restful Objects Viewer</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../vro/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Security Guide</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../security/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Setup Guide</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../setupguide/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Subdomains Catalog</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../subdomains/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Testing Guide</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../testing/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">User Guide</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../userguide/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component"> |
| <span class="title">Value Types Catalog</span> |
| <ul class="versions"> |
| <li class="version is-latest"> |
| <a href="../../../valuetypes/2.0.0-M3/about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| <li class="component is-current"> |
| <span class="title">Wicket Viewer</span> |
| <ul class="versions"> |
| <li class="version is-current is-latest"> |
| <a href="../about.html">2.0.0-M3</a> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </aside> |
| </div> |
| <main role="main"> |
| <div class="toolbar" role="navigation"> |
| <button class="nav-toggle"></button> |
| <a href="../../../docs/2.0.0-M3/about.html" class="home-link"></a> |
| <nav class="breadcrumbs" aria-label="breadcrumbs"> |
| <ul> |
| <li><a href="../about.html">Wicket Viewer</a></li> |
| <li><a href="highlight-current-row.html">Highlight Current Row</a></li> |
| </ul> |
| </nav> |
| <div class="edit-this-page"><a href="https://github.com/apache/isis/edit/2.0.0-M3/viewers/wicket/adoc/modules/ROOT/pages/hints-and-tips/highlight-current-row.adoc">Edit</a></div> |
| </div> |
| <article class="doc"> |
| <a name="section-top"></a> |
| <h1 class="page">Highlight Current Row</h1> |
| <div class="paragraph"> |
| <p>Demo App: Highlighting Current |
| As a by-the-by, the demo app has one further "trick up its sleeve". |
| If you run the app you’ll notice that the currently selected <code>DemoObject</code> is highlighted in the left-hand table of the <code>HomePageViewModel</code>.</p> |
| </div> |
| <div class="paragraph"> |
| <p>This is accomplished by having the view model collaborate with a subscribing domain service that configures a CSS class.</p> |
| </div> |
| <div class="paragraph"> |
| <p>We start by ensuring that the <code>DemoObject</code> emits an event for its CSS class:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="title">DemoObject.java</div> |
| <div class="content"> |
| <pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@DomainObjectLayout( |
| ... |
| cssClassUiEvent = DemoObject.CssClassUiEvent.class |
| ) |
| public class DemoObject ... { |
| |
| public static class CssClassUiEvent |
| extends org.apache.isis.applib.events.ui.CssClassUiEvent<DemoObject> {} |
| ... |
| }</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>Next, we define the domain service to act as the subscriber:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="title">HomePageViewModel.java</div> |
| <div class="content"> |
| <pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">import org.springframework.context.event.EventListener; |
| import org.springframework.stereotype.Service; |
| |
| public class HomePageViewModel { |
| |
| @Service |
| public static class CssHighlighter { |
| @EventListener(DemoObject.CssClassUiEvent.class) |
| public void on(DemoObject.CssClassUiEvent ev) { |
| if(getContext() == null) { return; } |
| if(ev.getSource() == getContext().getSelected()) { <i class="conum" data-value="1"></i><b>(1)</b> |
| ev.setCssClass("selected"); |
| } |
| } |
| private HomePageViewModel getContext() { <i class="conum" data-value="2"></i><b>(2)</b> |
| return (HomePageViewModel) scratchpad.get("context"); |
| } |
| void setContext(final HomePageViewModel homePageViewModel) { |
| scratchpad.put("context", homePageViewModel); |
| } |
| @Inject |
| Scratchpad scratchpad; <i class="conum" data-value="3"></i><b>(3)</b> |
| } |
| |
| }</code></pre> |
| </div> |
| </div> |
| <div class="colist arabic"> |
| <table> |
| <tr> |
| <td><i class="conum" data-value="1"></i><b>1</b></td> |
| <td>If the domain object is the currently selected then set the CSS class</td> |
| </tr> |
| <tr> |
| <td><i class="conum" data-value="2"></i><b>2</b></td> |
| <td>Provide methods to set and get the current <code>HomePageViewModel</code> (acting as the context)</td> |
| </tr> |
| <tr> |
| <td><i class="conum" data-value="3"></i><b>3</b></td> |
| <td>Store the context using the <code>Scratchpad</code> domain service (request-scoped so thread-safe).</td> |
| </tr> |
| </table> |
| </div> |
| <div class="paragraph"> |
| <p>The <code>HomePageViewModel</code> is responsible for setting itself as the context for the domain service:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="title">HomePageViewModel.java</div> |
| <div class="content"> |
| <pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">public class HomePageViewModel ... { |
| ... |
| public TranslatableString title() { |
| cssHighlighter.setContext(this); <i class="conum" data-value="1"></i><b>(1)</b> |
| ... |
| } |
| ... |
| @javax.inject.Inject |
| CssHighlighter cssHighlighter; |
| }</code></pre> |
| </div> |
| </div> |
| <div class="colist arabic"> |
| <table> |
| <tr> |
| <td><i class="conum" data-value="1"></i><b>1</b></td> |
| <td>set the context on the domain service</td> |
| </tr> |
| </table> |
| </div> |
| <div class="paragraph"> |
| <p>Finally we just need some CSS, in the <code>application.css</code> file:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="title">application.css</div> |
| <div class="content"> |
| <pre class="highlightjs highlight"><code class="language-css hljs" data-lang="css">.selected { |
| font-style: italic; font-weight: bolder; |
| }</code></pre> |
| </div> |
| </div> |
| </article> |
| <aside class="article-aside toc" role="navigation"> |
| <p class="toc-title">On this page</p> |
| <div id="article-toc"></div> |
| </aside> |
| </main> |
| </div> |
| <footer class="footer"> |
| <div class="content"> |
| <div class="copyright"> |
| <p> |
| Copyright © 2010~2020 The Apache Software Foundation, licensed under the Apache License, v2.0. |
| <br/> |
| Apache, the Apache feather logo, Apache Isis, and the Apache Isis project logo are all trademarks of The Apache Software Foundation. |
| </p> |
| </div> |
| <div class="revision"> |
| <p>Revision: SNAPSHOT</p> |
| </div> |
| </div> |
| </footer> |
| <script src="../../../_/js/site.js"></script> |
| <script async src="../../../_/js/vendor/highlight.js"></script> |
| <script src="../../../_/js/vendor/jquery-3.4.1.min.js"></script> |
| <script src="../../../_/js/vendor/jquery-ui-1.12.1.custom.widget-only.min.js"></script> |
| <script src="../../../_/js/vendor/jquery.tocify.min.js"></script> |
| |
| <script> |
| $(function() { |
| $("#article-toc").tocify( { |
| showEffect: "slideDown", |
| hashGenerator: "pretty", |
| hideEffect: "slideUp", |
| selectors: "h2, h3", |
| scrollTo: 120, |
| smoothScroll: true, |
| theme: "jqueryui", |
| highlightOnScroll: true |
| } ); |
| }); |
| </script> |
| </body> |
| </html> |
