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<div class="refentry">
<a name="GtkSourceCompletionContext"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GtkSourceCompletionContext.top_of_page"></a>GtkSourceCompletionContext</span></h2>
<p>GtkSourceCompletionContext — The context of a completion</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="GtkSourceCompletionContext.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">
<a class="link" href="GtkSourceCompletionContext.html#gtk-source-completion-context-add-proposals" title="gtk_source_completion_context_add_proposals ()">gtk_source_completion_context_add_proposals</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GtkSourceCompletionContext.html#gtk-source-completion-context-get-iter" title="gtk_source_completion_context_get_iter ()">gtk_source_completion_context_get_iter</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkSourceCompletionContext.html#GtkSourceCompletionActivation" title="enum GtkSourceCompletionActivation"><span class="returnvalue">GtkSourceCompletionActivation</span></a>
</td>
<td class="function_name">
<a class="link" href="GtkSourceCompletionContext.html#gtk-source-completion-context-get-activation" title="gtk_source_completion_context_get_activation ()">gtk_source_completion_context_get_activation</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GtkSourceCompletionContext.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type"><a class="link" href="GtkSourceCompletionContext.html#GtkSourceCompletionActivation" title="enum GtkSourceCompletionActivation"><span class="type">GtkSourceCompletionActivation</span></a></td>
<td class="property_name"><a class="link" href="GtkSourceCompletionContext.html#GtkSourceCompletionContext--activation" title="The “activation” property">activation</a></td>
<td class="property_flags">Read / Write / Construct</td>
</tr>
<tr>
<td class="property_type">
<a class="link" href="GtkSourceCompletion.html" title="GtkSourceCompletion"><span class="type">GtkSourceCompletion</span></a> *</td>
<td class="property_name"><a class="link" href="GtkSourceCompletionContext.html#GtkSourceCompletionContext--completion" title="The “completion” property">completion</a></td>
<td class="property_flags">Read / Write / Construct Only</td>
</tr>
<tr>
<td class="property_type">
<a href="../gtk3/GtkTextIter.html#GtkTextIter-struct"><span class="type">GtkTextIter</span></a> *</td>
<td class="property_name"><a class="link" href="GtkSourceCompletionContext.html#GtkSourceCompletionContext--iter" title="The “iter” property">iter</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GtkSourceCompletionContext.signals"></a><h2>Signals</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="signals_return">
<col width="300px" class="signals_name">
<col width="200px" class="signals_flags">
</colgroup>
<tbody><tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="GtkSourceCompletionContext.html#GtkSourceCompletionContext-cancelled" title="The “cancelled” signal">cancelled</a></td>
<td class="signal_flags"><a href="../gobject/gobject-Signals.html#G-SIGNAL-ACTION:CAPS">Action</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GtkSourceCompletionContext.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">enum</td>
<td class="function_name"><a class="link" href="GtkSourceCompletionContext.html#GtkSourceCompletionActivation" title="enum GtkSourceCompletionActivation">GtkSourceCompletionActivation</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GtkSourceCompletionContext.html#GtkSourceCompletionContext-struct" title="GtkSourceCompletionContext">GtkSourceCompletionContext</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GtkSourceCompletionContext.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-Enumeration-and-Flag-Types.html">GFlags</a>
<span class="lineart">╰──</span> GtkSourceCompletionActivation
<a href="../gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
<span class="lineart">╰──</span> <a href="../gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> GtkSourceCompletionContext
</pre>
</div>
<div class="refsect1">
<a name="GtkSourceCompletionContext.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <gtksourceview/gtksource.h>
</pre>
</div>
<div class="refsect1">
<a name="GtkSourceCompletionContext.description"></a><h2>Description</h2>
<p>Initially, the completion window is hidden. For a completion to occur, it has
to be activated. The different possible activations are listed in
<a class="link" href="GtkSourceCompletionContext.html#GtkSourceCompletionActivation" title="enum GtkSourceCompletionActivation"><span class="type">GtkSourceCompletionActivation</span></a>. When an activation occurs, a
<a class="link" href="GtkSourceCompletionContext.html" title="GtkSourceCompletionContext"><span class="type">GtkSourceCompletionContext</span></a> object is created, and the eligible providers are
asked to add proposals with <a class="link" href="GtkSourceCompletionContext.html#gtk-source-completion-context-add-proposals" title="gtk_source_completion_context_add_proposals ()"><code class="function">gtk_source_completion_context_add_proposals()</code></a>.</p>
<p>If no proposals are added, the completion window remains hidden, and the
context is destroyed.</p>
<p>On the other hand, if proposals are added, the completion window becomes
visible, and the user can choose a proposal. If the user is not happy with
the shown proposals, he or she can insert or delete characters, to modify the
completion context and therefore hoping to see the proposal he or she wants.
This means that when an insertion or deletion occurs in the <a href="../gtk3/GtkTextBuffer.html#GtkTextBuffer-struct"><span class="type">GtkTextBuffer</span></a>
when the completion window is visible, the eligible providers are again asked
to add proposals. The <a class="link" href="GtkSourceCompletionContext.html#GtkSourceCompletionContext--activation" title="The “activation” property"><span class="type">“activation”</span></a> remains the
same in this case.</p>
<p>When the completion window is hidden, the interactive completion is triggered
only on insertion in the buffer, not on deletion. Once the completion window
is visible, then on each insertion or deletion, there is a new population and
the providers are asked to add proposals. If there are no more proposals, the
completion window disappears. So if you want to keep the completion window
visible, but there are no proposals, you can insert a dummy proposal named
"No proposals". For example, the user types progressively the name of
a function, and some proposals appear. The user types a bad character and
there are no proposals anymore. What the user wants is to delete the last
character, and see the previous proposals. If the completion window
disappears, the previous proposals will not reappear on the character
deletion.</p>
<p>A <a href="../gtk3/GtkTextIter.html#GtkTextIter-struct"><span class="type">GtkTextIter</span></a> is associated with the context, this is where the completion
takes place. With this <a href="../gtk3/GtkTextIter.html#GtkTextIter-struct"><span class="type">GtkTextIter</span></a>, you can get the associated
<a href="../gtk3/GtkTextBuffer.html#GtkTextBuffer-struct"><span class="type">GtkTextBuffer</span></a> with <a href="../gtk3/GtkTextIter.html#gtk-text-iter-get-buffer"><code class="function">gtk_text_iter_get_buffer()</code></a>.</p>
</div>
<div class="refsect1">
<a name="GtkSourceCompletionContext.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gtk-source-completion-context-add-proposals"></a><h3>gtk_source_completion_context_add_proposals ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_source_completion_context_add_proposals
(<em class="parameter"><code><a class="link" href="GtkSourceCompletionContext.html" title="GtkSourceCompletionContext"><span class="type">GtkSourceCompletionContext</span></a> *context</code></em>,
<em class="parameter"><code><a class="link" href="GtkSourceCompletionProvider.html" title="GtkSourceCompletionProvider"><span class="type">GtkSourceCompletionProvider</span></a> *provider</code></em>,
<em class="parameter"><code><a href="../glib/glib-Doubly-Linked-Lists.html#GList"><span class="type">GList</span></a> *proposals</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> finished</code></em>);</pre>
<p>Providers can use this function to add proposals to the completion. They
can do so asynchronously by means of the <em class="parameter"><code>finished</code></em>
argument. Providers must
ensure that they always call this function with <em class="parameter"><code>finished</code></em>
set to <a href="../glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>
once each population (even if no proposals need to be added).
Population occurs when the <a class="link" href="GtkSourceCompletionProvider.html#gtk-source-completion-provider-populate" title="gtk_source_completion_provider_populate ()"><code class="function">gtk_source_completion_provider_populate()</code></a>
function is called.</p>
<div class="refsect3">
<a name="gtk-source-completion-context-add-proposals.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>context</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkSourceCompletionContext.html" title="GtkSourceCompletionContext"><span class="type">GtkSourceCompletionContext</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>provider</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkSourceCompletionProvider.html" title="GtkSourceCompletionProvider"><span class="type">GtkSourceCompletionProvider</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>proposals</p></td>
<td class="parameter_description"><p>The list of proposals to add. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> GtkSource.CompletionProposal]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>finished</p></td>
<td class="parameter_description"><p>Whether the provider is finished adding proposals.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-source-completion-context-get-iter"></a><h3>gtk_source_completion_context_get_iter ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gtk_source_completion_context_get_iter
(<em class="parameter"><code><a class="link" href="GtkSourceCompletionContext.html" title="GtkSourceCompletionContext"><span class="type">GtkSourceCompletionContext</span></a> *context</code></em>,
<em class="parameter"><code><a href="../gtk3/GtkTextIter.html#GtkTextIter-struct"><span class="type">GtkTextIter</span></a> *iter</code></em>);</pre>
<p>Get the iter at which the completion was invoked. Providers can use this
to determine how and if to match proposals.</p>
<div class="refsect3">
<a name="gtk-source-completion-context-get-iter.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>context</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkSourceCompletionContext.html" title="GtkSourceCompletionContext"><span class="type">GtkSourceCompletionContext</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a <a href="../gtk3/GtkTextIter.html#GtkTextIter-struct"><span class="type">GtkTextIter</span></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-source-completion-context-get-iter.returns"></a><h4>Returns</h4>
<p> <a href="../glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>iter</code></em>
is correctly set, <a href="../glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-source-completion-context-get-activation"></a><h3>gtk_source_completion_context_get_activation ()</h3>
<pre class="programlisting"><a class="link" href="GtkSourceCompletionContext.html#GtkSourceCompletionActivation" title="enum GtkSourceCompletionActivation"><span class="returnvalue">GtkSourceCompletionActivation</span></a>
gtk_source_completion_context_get_activation
(<em class="parameter"><code><a class="link" href="GtkSourceCompletionContext.html" title="GtkSourceCompletionContext"><span class="type">GtkSourceCompletionContext</span></a> *context</code></em>);</pre>
<p>Get the context activation.</p>
<div class="refsect3">
<a name="gtk-source-completion-context-get-activation.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>context</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkSourceCompletionContext.html" title="GtkSourceCompletionContext"><span class="type">GtkSourceCompletionContext</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-source-completion-context-get-activation.returns"></a><h4>Returns</h4>
<p> The context activation.</p>
</div>
</div>
</div>
<div class="refsect1">
<a name="GtkSourceCompletionContext.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GtkSourceCompletionActivation"></a><h3>enum GtkSourceCompletionActivation</h3>
<div class="refsect3">
<a name="GtkSourceCompletionActivation.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="GTK-SOURCE-COMPLETION-ACTIVATION-NONE:CAPS"></a>GTK_SOURCE_COMPLETION_ACTIVATION_NONE</p></td>
<td class="enum_member_description">
<p>None.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GTK-SOURCE-COMPLETION-ACTIVATION-INTERACTIVE:CAPS"></a>GTK_SOURCE_COMPLETION_ACTIVATION_INTERACTIVE</p></td>
<td class="enum_member_description">
<p>Interactive activation. By
default, it occurs on each insertion in the <a href="../gtk3/GtkTextBuffer.html#GtkTextBuffer-struct"><span class="type">GtkTextBuffer</span></a>. This can be
blocked temporarily with <a class="link" href="GtkSourceCompletion.html#gtk-source-completion-block-interactive" title="gtk_source_completion_block_interactive ()"><code class="function">gtk_source_completion_block_interactive()</code></a>.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GTK-SOURCE-COMPLETION-ACTIVATION-USER-REQUESTED:CAPS"></a>GTK_SOURCE_COMPLETION_ACTIVATION_USER_REQUESTED</p></td>
<td class="enum_member_description">
<p>User requested activation.
By default, it occurs when the user presses</p>
<span class="keycap"><strong>Control</strong></span>+<span class="keycap"><strong>space</strong></span>.
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GtkSourceCompletionContext-struct"></a><h3>GtkSourceCompletionContext</h3>
<pre class="programlisting">typedef struct _GtkSourceCompletionContext GtkSourceCompletionContext;</pre>
</div>
</div>
<div class="refsect1">
<a name="GtkSourceCompletionContext.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GtkSourceCompletionContext--activation"></a><h3>The <code class="literal">“activation”</code> property</h3>
<pre class="programlisting"> “activation” <a class="link" href="GtkSourceCompletionContext.html#GtkSourceCompletionActivation" title="enum GtkSourceCompletionActivation"><span class="type">GtkSourceCompletionActivation</span></a></pre>
<p>The completion activation</p>
<p>Flags: Read / Write / Construct</p>
<p>Default value: GTK_SOURCE_COMPLETION_ACTIVATION_USER_REQUESTED</p>
</div>
<hr>
<div class="refsect2">
<a name="GtkSourceCompletionContext--completion"></a><h3>The <code class="literal">“completion”</code> property</h3>
<pre class="programlisting"> “completion” <a class="link" href="GtkSourceCompletion.html" title="GtkSourceCompletion"><span class="type">GtkSourceCompletion</span></a> *</pre>
<p>The <a class="link" href="GtkSourceCompletion.html" title="GtkSourceCompletion"><span class="type">GtkSourceCompletion</span></a> associated with the context.</p>
<p>Flags: Read / Write / Construct Only</p>
</div>
<hr>
<div class="refsect2">
<a name="GtkSourceCompletionContext--iter"></a><h3>The <code class="literal">“iter”</code> property</h3>
<pre class="programlisting"> “iter” <a href="../gtk3/GtkTextIter.html#GtkTextIter-struct"><span class="type">GtkTextIter</span></a> *</pre>
<p>The <a href="../gtk3/GtkTextIter.html#GtkTextIter-struct"><span class="type">GtkTextIter</span></a> at which the completion is invoked.</p>
<p>Flags: Read / Write</p>
</div>
</div>
<div class="refsect1">
<a name="GtkSourceCompletionContext.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="GtkSourceCompletionContext-cancelled"></a><h3>The <code class="literal">“cancelled”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="GtkSourceCompletionContext.html" title="GtkSourceCompletionContext"><span class="type">GtkSourceCompletionContext</span></a> *sourcecompletioncontext,
<a href="../glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data)</pre>
<p>Emitted when the current population of proposals has been cancelled.
Providers adding proposals asynchronously should connect to this signal
to know when to cancel running proposal queries.</p>
<div class="refsect3">
<a name="GtkSourceCompletionContext-cancelled.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<p>Flags: <a href="../gobject/gobject-Signals.html#G-SIGNAL-ACTION:CAPS">Action</a></p>
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