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<h1>dbusnamelistener.h</h1><a href="dbusnamelistener_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (C) 2008 Nokia Corporation.</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * Contact: Marius Vollmer <marius.vollmer@nokia.com></span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the GNU Lesser General Public License</span>
<a name="l00008"></a>00008 <span class="comment"> * version 2.1 as published by the Free Software Foundation.</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * This library is distributed in the hope that it will be useful, but</span>
<a name="l00011"></a>00011 <span class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00012"></a>00012 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00013"></a>00013 <span class="comment"> * Lesser General Public License for more details.</span>
<a name="l00014"></a>00014 <span class="comment"> *</span>
<a name="l00015"></a>00015 <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span>
<a name="l00016"></a>00016 <span class="comment"> * License along with this library; if not, write to the Free Software</span>
<a name="l00017"></a>00017 <span class="comment"> * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA</span>
<a name="l00018"></a>00018 <span class="comment"> * 02110-1301 USA</span>
<a name="l00019"></a>00019 <span class="comment"> *</span>
<a name="l00020"></a>00020 <span class="comment"> */</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef DBUSNAMELISTENER_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define DBUSNAMELISTENER_H</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <QObject></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <QString></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <QDBusConnection></span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="keyword">class </span>QDBusPendingCallWatcher;
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="keyword">namespace </span>ContextSubscriber {
<a name="l00032"></a>00032
<a name="l00033"></a>00033
<a name="l00034"></a><a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html">00034</a> <span class="keyword">class </span><a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html" title="Listens for changes in a specific service name on a D-Bus bus, optionally gets the...">DBusNameListener</a> : <span class="keyword">public</span> QObject
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036 Q_OBJECT
<a name="l00037"></a>00037 <span class="keyword">public</span>:
<a name="l00038"></a><a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#c265c0eaa26e4e3b3c3182652563032dd3f04d9af475c8f8a465d7aa0e0bd48c">00038</a> <span class="keyword">enum</span> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#c265c0eaa26e4e3b3c3182652563032d">ServicePresence</a> {<a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#c265c0eaa26e4e3b3c3182652563032de05cd8cfb673aebec9380153d11a8884">NotPresent</a> = 0, <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#c265c0eaa26e4e3b3c3182652563032d7d8b53934031f453839328d87f1602ab">Present</a>, <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#c265c0eaa26e4e3b3c3182652563032dd3f04d9af475c8f8a465d7aa0e0bd48c">Unknown</a>};
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <span class="keyword">explicit</span> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#80cd4b4576989625cefc639d21bfee5d">DBusNameListener</a>(QDBusConnection::BusType <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#4ae2ef44be74c21c952f1bddb2a152f9" title="The service bus type we are interested in.">busType</a>, <span class="keyword">const</span> QString &<a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#86d18fe068b5a9e7b722aaf76dd897bd" title="The service name we are interested in.">busName</a>, QObject *parent = 0);
<a name="l00041"></a>00041 <span class="keyword">explicit</span> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#80cd4b4576989625cefc639d21bfee5d">DBusNameListener</a>(<span class="keyword">const</span> QDBusConnection bus, <span class="keyword">const</span> QString &<a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#86d18fe068b5a9e7b722aaf76dd897bd" title="The service name we are interested in.">busName</a>, QObject *parent = 0);
<a name="l00042"></a>00042 <span class="keyword">virtual</span> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#0049dbd454615122dcfca92253b7e7d7">~DBusNameListener</a>();
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <span class="keywordtype">void</span> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#29c51998308e0448bee857df8f8206cc" title="Start listening to the NameOwnerChanged signal over D-Bus.">startListening</a>(<span class="keywordtype">bool</span> nameHasOwnerCheck);
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#c265c0eaa26e4e3b3c3182652563032d">ServicePresence</a> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#c6727dbeb9c1f8ef2c101b223ef3acca" title="Return our current understanding (not present, present, unknown) of the presence...">isServicePresent</a>() <span class="keyword">const</span>;
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">private</span> slots:
<a name="l00049"></a>00049 <span class="keywordtype">void</span> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#ca7dd6273d3e2335a436b34b284d1830" title="This slot is called when DBusNameOwnerChanged signal arrives and it just filters...">onServiceOwnerChanged</a>(<span class="keyword">const</span> QString &name, <span class="keyword">const</span> QString &oldOwner, <span class="keyword">const</span> QString &newOwner);
<a name="l00050"></a>00050 <span class="keywordtype">void</span> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#fd2c19f9dc41d1e68bc2d22a1e2ac4a7" title="Handling of the asynchronous reply of the initial query.">onNameHasOwnerFinished</a>(QDBusPendingCallWatcher* watcher);
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="keyword">private</span>:
<a name="l00053"></a><a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#b1dd997605d2d5ef768c1b113ee42c52">00053</a> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#c265c0eaa26e4e3b3c3182652563032d">ServicePresence</a> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#b1dd997605d2d5ef768c1b113ee42c52" title="Our current understanding about the service name&#39;s state.">servicePresent</a>;
<a name="l00054"></a><a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#4ae2ef44be74c21c952f1bddb2a152f9">00054</a> QDBusConnection::BusType <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#4ae2ef44be74c21c952f1bddb2a152f9" title="The service bus type we are interested in.">busType</a>;
<a name="l00055"></a><a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#86d18fe068b5a9e7b722aaf76dd897bd">00055</a> QString <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#86d18fe068b5a9e7b722aaf76dd897bd" title="The service name we are interested in.">busName</a>;
<a name="l00056"></a><a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#2141c57da98b81259101f6e782cf92f5">00056</a> <span class="keywordtype">bool</span> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#2141c57da98b81259101f6e782cf92f5">listeningStarted</a>;
<a name="l00057"></a><a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#e09ac9d58b9c15e9ba77bf7f8247a5e7">00057</a> QDBusConnection* <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#e09ac9d58b9c15e9ba77bf7f8247a5e7">connection</a>;
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="keywordtype">void</span> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#888a8557a7246d7c268e8037220f3156">setServicePresent</a>();
<a name="l00060"></a>00060 <span class="keywordtype">void</span> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#2a28de9dd87121d688410053a025c470">setServiceGone</a>();
<a name="l00061"></a>00061
<a name="l00062"></a>00062 signals:
<a name="l00063"></a>00063 <span class="keywordtype">void</span> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#156d249adafb167b396e61786590480b">nameAppeared</a>();
<a name="l00064"></a>00064 <span class="keywordtype">void</span> <a class="code" href="class_context_subscriber_1_1_d_bus_name_listener.html#96df4b22f35d6e39d0db58e1e26a9550">nameDisappeared</a>();
<a name="l00065"></a>00065 };
<a name="l00066"></a>00066
<a name="l00067"></a>00067 } <span class="comment">// end namespace</span>
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="preprocessor">#endif</span>
</pre></div></div>
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