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<li>Installation</li>
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<li><a href="/enigma-bbs/installation/installation-methods.html">Installation Methods</a></li>
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<li>Modding</li>
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<li><a href="/enigma-bbs/modding/last-callers.html">Last Callers</a></li>
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<li><a href="/enigma-bbs/modding/bbs-list.html">BBS List</a></li>
<li><a href="/enigma-bbs/modding/rumorz.html">Rumorz</a></li>
<li><a href="/enigma-bbs/modding/file-transfer-protocol-select.html">File Transfer Protocol Select</a></li>
<li><a href="/enigma-bbs/modding/onelinerz.html">Onelinerz</a></li>
<li><a href="/enigma-bbs/modding/show-art.html">The Show Art Module</a></li>
<li><a href="/enigma-bbs/modding/file-base-download-manager.html">File Base Download Manager</a></li>
<li><a href="/enigma-bbs/modding/file-base-web-download-manager.html">File Base Web Download Manager</a></li>
<li><a href="/enigma-bbs/modding/set-newscan-date.html">Set Newscan Date Module</a></li>
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<li><a href="/enigma-bbs/modding/autosig-edit.html">Auto Signature Editor</a></li>
<li class="active-nav">Menu Modules</li>
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<li>Administration</li>
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<li><a href="/enigma-bbs/admin/administration.html">Administration</a></li>
<li><a href="/enigma-bbs/admin/oputil.html">oputil</a></li>
<li><a href="/enigma-bbs/admin/updating.html">Updating</a></li>
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<li>Troubleshooting</li>
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<li><a href="/enigma-bbs/troubleshooting/monitoring-logs.html">Monitoring Logs</a></li>
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<li>Modding</li>
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<li><a href="/enigma-bbs/modding/wfc.html">Waiting For Caller (WFC)</a></li>
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<div class="page">
<h1 class="page-title">Menu Modules</h1>
<h2 id="menu-modules">Menu Modules</h2>
<p>From initial connection to the screens and mods your users interact with, the entire experience is made up of menu entries — And all menu entries found within <code class="language-plaintext highlighter-rouge">menu.hjson</code> are backed by <em>Menu Modules</em>. For basic menus, a standard handler is implemented requiring no code. However, if you would like to create a menu that has custom handling, you will very likely be inheriting from from <code class="language-plaintext highlighter-rouge">MenuModule</code>. More on this below.</p>
<blockquote>
<p><img class="emoji" title=":information_source:" alt=":information_source:" src="https://github.githubassets.com/images/icons/emoji/unicode/2139.png" height="20" width="20"> Remember that ENiGMA does not impose any stucture to your system! The “flow” of all <code class="language-plaintext highlighter-rouge">menu.hjson</code> entries is up to you!</p>
</blockquote>
<blockquote>
<p><img class="emoji" title=":bulb:" alt=":bulb:" src="https://github.githubassets.com/images/icons/emoji/unicode/1f4a1.png" height="20" width="20"> If the <code class="language-plaintext highlighter-rouge">module</code> entry is not present in a <code class="language-plaintext highlighter-rouge">menu.hjson</code> entry, the system automatically uses <a href="/core/standard_menu.js">standard_menu.js</a>.</p>
</blockquote>
<h2 id="creating-a-new-module">Creating a New Module</h2>
<p>At the highest level, to create a new custom menu or mod, inherit from <code class="language-plaintext highlighter-rouge">MenuModule</code> and expose it via the <code class="language-plaintext highlighter-rouge">getModule</code> exported method:</p>
<div class="language-javascript highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="c1">// my_fancy_module.js</span>
<span class="nx">exports</span><span class="p">.</span><span class="nx">getModule</span> <span class="o">=</span> <span class="kd">class</span> <span class="nx">MyFancyModule</span> <span class="kd">extends</span> <span class="nx">MenuModule</span> <span class="p">{</span>
<span class="kd">constructor</span><span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
<span class="k">super</span><span class="p">(</span><span class="nx">options</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">};</span>
</code></pre></div></div>
<p>Next, override the appropriate methods to add some functionality! Below is an example fragment overriding just <code class="language-plaintext highlighter-rouge">initSequence()</code>:</p>
<div class="language-javascript highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nx">initSequence</span><span class="p">()</span> <span class="p">{</span>
<span class="k">async</span><span class="p">.</span><span class="nx">series</span><span class="p">(</span>
<span class="p">[</span>
<span class="nx">callback</span> <span class="o">=&gt;</span> <span class="p">{</span>
<span class="c1">// call base method</span>
<span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">beforeArt</span><span class="p">(</span><span class="nx">callback</span><span class="p">);</span>
<span class="p">},</span>
<span class="nx">callback</span> <span class="o">=&gt;</span> <span class="p">{</span>
<span class="c1">// a private method to display a main "page"</span>
<span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">_displayMainPage</span><span class="p">(</span><span class="kc">false</span><span class="p">,</span> <span class="nx">callback</span><span class="p">);</span>
<span class="p">},</span>
<span class="p">],</span>
<span class="p">()</span> <span class="o">=&gt;</span> <span class="p">{</span>
<span class="k">this</span><span class="p">.</span><span class="nx">finishedLoading</span><span class="p">();</span>
<span class="p">}</span>
<span class="p">);</span>
<span class="p">}</span>
</code></pre></div></div>
<h2 id="moduleinfo">ModuleInfo</h2>
<p>To register your module with the system, include a <code class="language-plaintext highlighter-rouge">ModuleInfo</code> declaration in your exports:</p>
<div class="language-javascript highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nx">exports</span><span class="p">.</span><span class="nx">ModuleInfo</span> <span class="o">=</span> <span class="p">{</span>
<span class="na">name</span><span class="p">:</span> <span class="dl">'</span><span class="s1">Super Dope Mod</span><span class="dl">'</span><span class="p">,</span>
<span class="na">desc</span><span class="p">:</span> <span class="dl">'</span><span class="s1">...a super dope mod, duh.</span><span class="dl">'</span><span class="p">,</span>
<span class="na">author</span><span class="p">:</span> <span class="dl">'</span><span class="s1">You!</span><span class="dl">'</span><span class="p">,</span>
<span class="p">};</span>
</code></pre></div></div>
<h2 id="lifecycle">Lifecycle</h2>
<p>Below is a very high level diagram showing the basic lifecycle of a menu.</p>
<p><img src="/enigma-bbs/assets/images/basic_menu_lifecycle.png" alt="Basic Menu Lifecycle"></p>
<p>Methods indicated above with <code class="language-plaintext highlighter-rouge">()</code> in their name such as <code class="language-plaintext highlighter-rouge">enter()</code> are overridable when inheriting form <code class="language-plaintext highlighter-rouge">MenuModule</code>.</p>
<h2 id="menumodule-helper-methods">MenuModule Helper Methods</h2>
<p>Many helper methods exist and are available to code inheriting from <code class="language-plaintext highlighter-rouge">MenuModule</code>. Below are some examples. Poke around at <a href="../../../core/menu_module.js">menu_module.js</a> to discover more!</p>
<h3 id="views--view-controller">Views &amp; View Controller</h3>
<ul>
<li><code class="language-plaintext highlighter-rouge">displayAsset()</code></li>
<li><code class="language-plaintext highlighter-rouge">prepViewController()</code></li>
<li><code class="language-plaintext highlighter-rouge">prepViewControllerWithArt()</code></li>
<li><code class="language-plaintext highlighter-rouge">displayArtAndPrepViewController()</code></li>
<li><code class="language-plaintext highlighter-rouge">setViewText()</code></li>
<li><code class="language-plaintext highlighter-rouge">getView()</code></li>
<li><code class="language-plaintext highlighter-rouge">updateCustomViewTextsWithFilter()</code></li>
<li><code class="language-plaintext highlighter-rouge">refreshPredefinedMciViewsByCode()</code></li>
</ul>
<h3 id="validation">Validation</h3>
<ul>
<li><code class="language-plaintext highlighter-rouge">validateMCIByViewIds()</code></li>
<li><code class="language-plaintext highlighter-rouge">validateConfigFields()</code></li>
</ul>
<h3 id="datetime-helpers">Date/Time Helpers</h3>
<p>The following methods take a single input to specify style, defaulting to <code class="language-plaintext highlighter-rouge">short</code>:</p>
<ul>
<li><code class="language-plaintext highlighter-rouge">getDateFormat()</code></li>
<li><code class="language-plaintext highlighter-rouge">getTimeFormat()</code></li>
<li><code class="language-plaintext highlighter-rouge">getDateTimeFormat()</code></li>
</ul>
<h3 id="misc">Misc</h3>
<ul>
<li><code class="language-plaintext highlighter-rouge">promptForInput()</code></li>
</ul>
<p><code class="language-plaintext highlighter-rouge">standardMCIReadyHandler()</code>: This is a standard and commonly used <code class="language-plaintext highlighter-rouge">mciReady()</code> implemenation:</p>
<div class="language-javascript highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nx">mciReady</span><span class="p">(</span><span class="nx">mciData</span><span class="p">,</span> <span class="nx">cb</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">standardMCIReadyHandler</span><span class="p">(</span><span class="nx">mciData</span><span class="p">,</span> <span class="nx">cb</span><span class="p">);</span>
<span class="p">}</span>
</code></pre></div></div>
<blockquote>
<p><img class="emoji" title=":information_source:" alt=":information_source:" src="https://github.githubassets.com/images/icons/emoji/unicode/2139.png" height="20" width="20"> Search the code for the above methods to see how they are used in the base system!</p>
</blockquote>
<h2 id="menu-methods">Menu Methods</h2>
<p>Form handler methods specified by <code class="language-plaintext highlighter-rouge">@method:someName</code> in your <code class="language-plaintext highlighter-rouge">menu.hjson</code> entries map to those found in your module’s <code class="language-plaintext highlighter-rouge">menuMethods</code> object. That is, <code class="language-plaintext highlighter-rouge">this.menuMethods</code> and have the following signature <code class="language-plaintext highlighter-rouge">(formData, extraArgs, cb)</code>. For example, consider the following <code class="language-plaintext highlighter-rouge">menu.hjson</code> fragment:</p>
<pre><code class="language-hjson">actionKeys: [
{
keys: [ "a", "shift + a" ]
action: @method:toggleAvailable
}
]
</code></pre>
<p>We can handle this in our module as such:</p>
<div class="language-javascript highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nx">exports</span><span class="p">.</span><span class="nx">getModule</span> <span class="o">=</span> <span class="kd">class</span> <span class="nx">MyFancyModule</span> <span class="kd">extends</span> <span class="nx">MenuModule</span> <span class="p">{</span>
<span class="kd">constructor</span><span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
<span class="k">super</span><span class="p">(</span><span class="nx">options</span><span class="p">);</span>
<span class="k">this</span><span class="p">.</span><span class="nx">menuMethods</span> <span class="o">=</span> <span class="p">{</span>
<span class="na">toggleAvailable</span><span class="p">:</span> <span class="p">(</span><span class="nx">formData</span><span class="p">,</span> <span class="nx">extraArgs</span><span class="p">,</span> <span class="nx">cb</span><span class="p">)</span> <span class="o">=&gt;</span> <span class="p">{</span>
<span class="c1">// ...do something fancy...</span>
<span class="k">return</span> <span class="nx">cb</span><span class="p">(</span><span class="kc">null</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="p">}</span>
<span class="p">}</span>
</code></pre></div></div>
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