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| <a class="edit-on-gh" href="https://github.com/apache/struts-site/edit/master/source/tag-developers/ajax-theme.md" title="Edit this page on GitHub">Edit on GitHub</a> |
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| <a href="themes-and-templates.html" title="back to Themes and Templates"><< back to Themes and Templates</a> |
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| <h1 id="ajax-theme">ajax theme</h1> |
| |
| <blockquote> |
| <p>NOTE: Ajax template (Dojo plugin) is deprecated and won’t be supported any longer.</p> |
| </blockquote> |
| |
| <p>The ajax theme extends the <a href="xhtml-theme.html">xhtml theme</a> with AJAX features. The theme uses the popular DOJO |
| AJAX/JavaScript toolkit. AJAX features include:</p> |
| |
| <ul> |
| <li><a href="../core-developers/ajax-client-side-validation.html">AJAX Client Side Validation</a></li> |
| <li>Remote <a href="form-tag.html">form</a> submission support (works with the <a href="dojo-submit-tag.html">submit</a> tag as well)</li> |
| <li>An advanced <a href="dojo-div-tag.html">div</a> template that provides dynamic reloading of partial HTML</li> |
| <li>An advanced <a href="dojo-a-tag.html">a</a> template that provides the ability to load and evaluate JavaScript remotely</li> |
| <li>An AJAX-only <a href="dojo-tabbedpanel-tag.html">tabbedpanel</a> implementation</li> |
| <li>A rich pub-sub event model</li> |
| <li>Interactive autocomplete tag</li> |
| </ul> |
| |
| <blockquote> |
| <p>See also: <a href="ajax-tags.html">Ajax tags</a></p> |
| </blockquote> |
| |
| <h2 id="browser-compatibility">Browser Compatibility</h2> |
| |
| <p>AJAX (as a technology) uses a browser-side scripting component that varies between browsers (and sometimes versions). |
| To hide those differences from the developer, we utilize the dojo toolkit (<a href="http://www.dojotoolkit.org">http://www.dojotoolkit.org</a>). |
| Several browsers are supported by dojo, and any UI’s created with the ajax theme should act the same way for supported |
| browsers. The supported browsers are:</p> |
| |
| <ul> |
| <li>IE 5.5+</li> |
| <li>FF 1.0+</li> |
| <li>Latest Safari (on up-to-date OS versions)</li> |
| <li>Latest Opera</li> |
| <li>Latest Konqueror</li> |
| </ul> |
| |
| <h2 id="extending-the-ajax-theme">Extending the AJAX Theme</h2> |
| |
| <p>The wrapping technique utilized by the ajax theme is much like <a href="xhtml-theme.html">xhtml theme</a>, but the <code class="highlighter-rouge">controlheader.ftl</code> |
| is a wee bit different.</p> |
| |
| <pre><code class="language-ftl"><#if parameters.label?if_exists != ""> |
| <#include "/${parameters.templateDir}/xhtml/controlheader.ftl" /> |
| </#if> |
| <#if parameters.form?exists && parameters.form.validate?default(false) == true> |
| <#-- can't mutate the data model in freemarker --> |
| <#if parameters.onblur?exists> |
| ${tag.addParameter('onblur', "validate(this);${parameters.onblur}")} |
| <#else> |
| ${tag.addParameter('onblur', "validate(this);")} |
| </#if> |
| </#if> |
| </code></pre> |
| |
| <p>The header provides for <a href="../core-developers/ajax-client-side-validation.html">AJAX Client Side Validation</a> by checking |
| if the <code class="highlighter-rouge">validate</code> attribute is set to true. If it is, a validation request is made on each <code class="highlighter-rouge">onblur</code> event |
| for a HTML <a href="struts-tags.html">Struts Tags</a>. Some people don’t like the <code class="highlighter-rouge">onblur</code> behavior; they would rather a more |
| advanced timer (say, 200ms) be kicked off after every keystroke. You can override this template and provide that |
| type of behavior if you would like.</p> |
| |
| <h2 id="special-interest">Special Interest</h2> |
| |
| <p>Three ajax_xhtml templates of special interest are <code class="highlighter-rouge">head</code>, <code class="highlighter-rouge">div</code> , and <code class="highlighter-rouge">a</code>.</p> |
| |
| <blockquote> |
| <p>Especially with the ajax theme, it is important to use the <a href="dojo-head-tag.html">head</a> tag. |
| (See the <a href="ajax-head-template.html">ajax head template</a> for more information.) Without it, AJAX support may not be set |
| up properly.</p> |
| </blockquote> |
| |
| <ul> |
| <li><a href="ajax-head-template.html">ajax head template</a></li> |
| <li><a href="ajax-div-template.html">ajax div template</a></li> |
| <li><a href="ajax-a-template.html">ajax a template</a></li> |
| </ul> |
| |
| <blockquote> |
| <p>In addition to these templates, be familiar with the <a href="ajax-event-system.html">ajax event system</a> provided by |
| the framework and Dojo.</p> |
| </blockquote> |
| |
| </section> |
| </article> |
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