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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Using a Context Menu: Panel Applet Reference Manual</title>
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<div class="chapter">
<div class="titlepage"><div><div><h2 class="title">
<a name="getting-started.context-menu"></a>Using a Context Menu</h2></div></div></div>
<div class="toc"><dl class="toc">
<dt><span class="sect1"><a href="getting-started.context-menu.html#getting-started.context-menu.content">Guidelines for Context Menu</a></span></dt>
<dt><span class="sect1"><a href="getting-started.context-menu.setup.html">Setting Up the Menu</a></span></dt>
</dl></div>
<p>
     The Panel Applet library uses <span class="type">GAction</span> to define menu items appearing in the context menu of the
     applet. This chapter provides some guidelines to applet developers and explains how to setup the context menu.
    </p>
<div class="sect1">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="getting-started.context-menu.content"></a>Guidelines for Context Menu</h2></div></div></div>
<p>
      To help guarantee consistency in the interaction with applets, there are some guidelines that are
      recommended to follow:
     </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>
        Do not make the context menu too long: if you have more than five or six menu items, then it might be worth
        investing efforts on rethinking what is important in the menu.
       </p></li>
<li class="listitem"><p>
        For the menu item that will enable the user to configure the applet, use "Preferences" for the label,
        and try to avoid "Configure", "Configuration", "Settings", etc.
       </p></li>
<li class="listitem"><p>
        Avoid putting a "Help" menu item. The user will usually explicitly add the applet, so it is expected that he knows what the applet is about.
        Putting a "Help" menu item in the context menu is therefore too prominent. It might make sense to add a "Help" button in the Preferences dialog, though.
       </p></li>
<li class="listitem"><p>
        If you agree, avoid putting a "About" menu item. To the user, applets are not different applications but elements of one global application, the panel. Of course, this means that credits
        for working on the applet are not visible to the user.
       </p></li>
</ul></div>
</div>
<div class="sect2">
<div class="titlepage"><div><div><h3 class="title">
<a name="getting-started.context-menu.xml-file"></a>Menu XML File</h3></div></div></div>
<p>
      The file that is used to setup menu with the <a class="link" href="libpanel-applet-Panel-Applet.html#panel-applet-setup-menu-from-file" title="panel_applet_setup_menu_from_file ()"><code class="function">panel_applet_setup_menu_from_file()</code></a> function is a <span class="type">GtkUIManager</span> UI definition file, without the top-level <code class="constant">&lt;ui&gt;</code> tag. It must only contain menuitem entries and separators. For example:
     </p>
<div class="informalexample"><pre class="programlisting">
&lt;menuitem name="Hello World Prefs" action="HelloWorldPrefs" /&gt;
&lt;separator/&gt;
&lt;menuitem name="Hello World Say"   action="HelloWorldSay" /&gt;
      </pre></div>
<p>
     Alternatively, the <a class="link" href="libpanel-applet-Panel-Applet.html#panel-applet-setup-menu" title="panel_applet_setup_menu ()"><code class="function">panel_applet_setup_menu()</code></a> function can be used with a string containing directly the XML.
    </p>
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