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<title>NautilusInfoProvider: Nautilus Extension Reference Manual</title>
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<a href="#NautilusInfoProvider.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_prerequisites"> <span class="dim">|</span>
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<a name="NautilusInfoProvider"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="NautilusInfoProvider.top_of_page"></a>NautilusInfoProvider</span></h2>
<p>NautilusInfoProvider — Interface to provide additional information about files</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
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<div class="refsect1">
<a name="NautilusInfoProvider.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="NautilusInfoProvider.html#NautilusInfoProviderUpdateComplete" title="NautilusInfoProviderUpdateComplete ()">*NautilusInfoProviderUpdateComplete</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="NautilusInfoProvider.html#NautilusOperationResult" title="enum NautilusOperationResult"><span class="returnvalue">NautilusOperationResult</span></a>
</td>
<td class="function_name">
<a class="link" href="NautilusInfoProvider.html#nautilus-info-provider-update-file-info" title="nautilus_info_provider_update_file_info ()">nautilus_info_provider_update_file_info</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="NautilusInfoProvider.html#nautilus-info-provider-cancel-update" title="nautilus_info_provider_cancel_update ()">nautilus_info_provider_cancel_update</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="NautilusInfoProvider.html#nautilus-info-provider-update-complete-invoke" title="nautilus_info_provider_update_complete_invoke ()">nautilus_info_provider_update_complete_invoke</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="NautilusInfoProvider.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="NautilusInfoProvider.html#NautilusInfoProvider-struct" title="NautilusInfoProvider">NautilusInfoProvider</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="NautilusInfoProvider.html#NautilusInfoProviderIface" title="struct NautilusInfoProviderIface">NautilusInfoProviderIface</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="NautilusInfoProvider.html#NautilusOperationHandle" title="NautilusOperationHandle">NautilusOperationHandle</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="NautilusInfoProvider.html#NautilusOperationResult" title="enum NautilusOperationResult">NautilusOperationResult</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="NautilusInfoProvider.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-Enumeration-and-Flag-Types.html">GEnum</a>
<span class="lineart">╰──</span> NautilusOperationResult
<a href="/usr/share/gtk-doc/html/gobject/GTypeModule.html">GInterface</a>
<span class="lineart">╰──</span> NautilusInfoProvider
</pre>
</div>
<div class="refsect1">
<a name="NautilusInfoProvider.prerequisites"></a><h2>Prerequisites</h2>
<p>
NautilusInfoProvider requires
<a href="../gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>.</p>
</div>
<div class="refsect1">
<a name="NautilusInfoProvider.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <libnautilus-extension/nautilus-column-provider.h>
</pre>
</div>
<div class="refsect1">
<a name="NautilusInfoProvider.description"></a><h2>Description</h2>
<p><a class="link" href="NautilusInfoProvider.html" title="NautilusInfoProvider"><span class="type">NautilusInfoProvider</span></a> allows extension to provide additional information about
files. When <a class="link" href="NautilusInfoProvider.html#nautilus-info-provider-update-file-info" title="nautilus_info_provider_update_file_info ()"><code class="function">nautilus_info_provider_update_file_info()</code></a> is called by the application,
extensions will know that it's time to add extra information to the provided
<a class="link" href="NautilusFileInfo.html" title="NautilusFileInfo"><span class="type">NautilusFileInfo</span></a>.</p>
</div>
<div class="refsect1">
<a name="NautilusInfoProvider.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="NautilusInfoProviderUpdateComplete"></a><h3>NautilusInfoProviderUpdateComplete ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*NautilusInfoProviderUpdateComplete<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="NautilusInfoProvider.html" title="NautilusInfoProvider"><span class="type">NautilusInfoProvider</span></a> *provider</code></em>,
<em class="parameter"><code><a class="link" href="NautilusInfoProvider.html#NautilusOperationHandle" title="NautilusOperationHandle"><span class="type">NautilusOperationHandle</span></a> *handle</code></em>,
<em class="parameter"><code><a class="link" href="NautilusInfoProvider.html#NautilusOperationResult" title="enum NautilusOperationResult"><span class="type">NautilusOperationResult</span></a> result</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="nautilus-info-provider-update-file-info"></a><h3>nautilus_info_provider_update_file_info ()</h3>
<pre class="programlisting"><a class="link" href="NautilusInfoProvider.html#NautilusOperationResult" title="enum NautilusOperationResult"><span class="returnvalue">NautilusOperationResult</span></a>
nautilus_info_provider_update_file_info
(<em class="parameter"><code><a class="link" href="NautilusInfoProvider.html" title="NautilusInfoProvider"><span class="type">NautilusInfoProvider</span></a> *provider</code></em>,
<em class="parameter"><code><a class="link" href="NautilusFileInfo.html" title="NautilusFileInfo"><span class="type">NautilusFileInfo</span></a> *file</code></em>,
<em class="parameter"><code><a href="../gobject/gobject-Closures.html#GClosure"><span class="type">GClosure</span></a> *update_complete</code></em>,
<em class="parameter"><code><a class="link" href="NautilusInfoProvider.html#NautilusOperationHandle" title="NautilusOperationHandle"><span class="type">NautilusOperationHandle</span></a> **handle</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="nautilus-info-provider-cancel-update"></a><h3>nautilus_info_provider_cancel_update ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
nautilus_info_provider_cancel_update (<em class="parameter"><code><a class="link" href="NautilusInfoProvider.html" title="NautilusInfoProvider"><span class="type">NautilusInfoProvider</span></a> *provider</code></em>,
<em class="parameter"><code><a class="link" href="NautilusInfoProvider.html#NautilusOperationHandle" title="NautilusOperationHandle"><span class="type">NautilusOperationHandle</span></a> *handle</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="nautilus-info-provider-update-complete-invoke"></a><h3>nautilus_info_provider_update_complete_invoke ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
nautilus_info_provider_update_complete_invoke
(<em class="parameter"><code><a href="../gobject/gobject-Closures.html#GClosure"><span class="type">GClosure</span></a> *update_complete</code></em>,
<em class="parameter"><code><a class="link" href="NautilusInfoProvider.html" title="NautilusInfoProvider"><span class="type">NautilusInfoProvider</span></a> *provider</code></em>,
<em class="parameter"><code><a class="link" href="NautilusInfoProvider.html#NautilusOperationHandle" title="NautilusOperationHandle"><span class="type">NautilusOperationHandle</span></a> *handle</code></em>,
<em class="parameter"><code><a class="link" href="NautilusInfoProvider.html#NautilusOperationResult" title="enum NautilusOperationResult"><span class="type">NautilusOperationResult</span></a> result</code></em>);</pre>
</div>
</div>
<div class="refsect1">
<a name="NautilusInfoProvider.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="NautilusInfoProvider-struct"></a><h3>NautilusInfoProvider</h3>
<pre class="programlisting">typedef struct _NautilusInfoProvider NautilusInfoProvider;</pre>
</div>
<hr>
<div class="refsect2">
<a name="NautilusInfoProviderIface"></a><h3>struct NautilusInfoProviderIface</h3>
<pre class="programlisting">struct NautilusInfoProviderIface {
GTypeInterface g_iface;
NautilusOperationResult (*update_file_info) (NautilusInfoProvider *provider,
NautilusFileInfo *file,
GClosure *update_complete,
NautilusOperationHandle **handle);
void (*cancel_update) (NautilusInfoProvider *provider,
NautilusOperationHandle *handle);
};
</pre>
<p>Interface for extensions to provide additional information about files.</p>
<div class="refsect3">
<a name="NautilusInfoProviderIface.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="NautilusInfoProviderIface.update-file-info"></a>update_file_info</code></em> ()</p></td>
<td class="struct_member_description"><p>Returns a <a class="link" href="NautilusInfoProvider.html#NautilusOperationResult" title="enum NautilusOperationResult"><span class="type">NautilusOperationResult</span></a>.
See <a class="link" href="NautilusInfoProvider.html#nautilus-info-provider-update-file-info" title="nautilus_info_provider_update_file_info ()"><code class="function">nautilus_info_provider_update_file_info()</code></a> for details.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="NautilusInfoProviderIface.cancel-update"></a>cancel_update</code></em> ()</p></td>
<td class="struct_member_description"><p>Cancels a previous call to <a class="link" href="NautilusInfoProvider.html#nautilus-info-provider-update-file-info" title="nautilus_info_provider_update_file_info ()"><code class="function">nautilus_info_provider_update_file_info()</code></a>.
See <a class="link" href="NautilusInfoProvider.html#nautilus-info-provider-cancel-update" title="nautilus_info_provider_cancel_update ()"><code class="function">nautilus_info_provider_cancel_update()</code></a> for details.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="NautilusOperationHandle"></a><h3>NautilusOperationHandle</h3>
<pre class="programlisting">typedef struct _NautilusOperationHandle NautilusOperationHandle;</pre>
<p>Handle for asynchronous interfaces. These are opaque handles that must
be unique within an extension object. These are returned by operations
that return <a class="link" href="NautilusInfoProvider.html#NAUTILUS-OPERATION-IN-PROGRESS:CAPS"><span class="type">NAUTILUS_OPERATION_IN_PROGRESS</span></a>.</p>
</div>
<hr>
<div class="refsect2">
<a name="NautilusOperationResult"></a><h3>enum NautilusOperationResult</h3>
<p>Return values for asynchronous operations performed by the extension.
See <a class="link" href="NautilusInfoProvider.html#nautilus-info-provider-update-file-info" title="nautilus_info_provider_update_file_info ()"><code class="function">nautilus_info_provider_update_file_info()</code></a>.</p>
<div class="refsect3">
<a name="NautilusOperationResult.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="NAUTILUS-OPERATION-COMPLETE:CAPS"></a>NAUTILUS_OPERATION_COMPLETE</p></td>
<td class="enum_member_description">
<p>the operation succeeded, and the extension
is done with the request.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="NAUTILUS-OPERATION-FAILED:CAPS"></a>NAUTILUS_OPERATION_FAILED</p></td>
<td class="enum_member_description">
<p>the operation failed.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="NAUTILUS-OPERATION-IN-PROGRESS:CAPS"></a>NAUTILUS_OPERATION_IN_PROGRESS</p></td>
<td class="enum_member_description">
<p>the extension has begin an async operation.
When this value is returned, the extension must set the handle parameter
and call the callback closure when the operation is complete.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
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