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<div class="title">dcopsignals.cpp</div>  </div>
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<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) 2000 Waldo Bastian &lt;bastian@kde.org&gt;</span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment">Permission is hereby granted, free of charge, to any person obtaining a copy</span>
<a name="l00005"></a>00005 <span class="comment">of this software and associated documentation files (the &quot;Software&quot;), to deal</span>
<a name="l00006"></a>00006 <span class="comment">in the Software without restriction, including without limitation the rights</span>
<a name="l00007"></a>00007 <span class="comment">to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</span>
<a name="l00008"></a>00008 <span class="comment">copies of the Software, and to permit persons to whom the Software is</span>
<a name="l00009"></a>00009 <span class="comment">furnished to do so, subject to the following conditions:</span>
<a name="l00010"></a>00010 <span class="comment"></span>
<a name="l00011"></a>00011 <span class="comment">The above copyright notice and this permission notice shall be included in</span>
<a name="l00012"></a>00012 <span class="comment">all copies or substantial portions of the Software.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment">THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span>
<a name="l00015"></a>00015 <span class="comment">IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span>
<a name="l00016"></a>00016 <span class="comment">FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE</span>
<a name="l00017"></a>00017 <span class="comment">AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN</span>
<a name="l00018"></a>00018 <span class="comment">AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN</span>
<a name="l00019"></a>00019 <span class="comment">CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.</span>
<a name="l00020"></a>00020 <span class="comment">*/</span>
<a name="l00021"></a>00021 
<a name="l00022"></a>00022 <span class="preprocessor">#include &lt;dcopserver.h&gt;</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include &lt;dcopsignals.h&gt;</span>
<a name="l00024"></a>00024 
<a name="l00025"></a>00025 <span class="keyword">template</span> <span class="keyword">class </span><a class="codeRef" href="qptrlist.html">QPtrList&lt;DCOPSignalConnection&gt;</a>;
<a name="l00026"></a>00026 
<a name="l00027"></a>00027 DCOPSignals::DCOPSignals()
<a name="l00028"></a>00028 {
<a name="l00029"></a>00029    connections.<a class="codeRef" href="qptrlist.html#setAutoDelete">setAutoDelete</a>(<span class="keyword">true</span>);
<a name="l00030"></a>00030 }
<a name="l00031"></a>00031 
<a name="l00037"></a>00037 <span class="keywordtype">void</span>
<a name="l00038"></a>00038 DCOPSignals::emitSignal( DCOPConnection *conn, <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &amp;_fun, <span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &amp;data, <span class="keywordtype">bool</span> excludeSelf)
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040    <a class="codeRef" href="qcstring.html">QCString</a> senderObj;
<a name="l00041"></a>00041    <a class="codeRef" href="qcstring.html">QCString</a> fun = _fun;
<a name="l00042"></a>00042    <span class="keywordtype">int</span> i = fun.<a class="codeRef" href="qcstring.html#find">find</a>(<span class="charliteral">&#39;#&#39;</span>);
<a name="l00043"></a>00043    <span class="keywordflow">if</span> (i &gt; -1)
<a name="l00044"></a>00044    {
<a name="l00045"></a>00045       senderObj = fun.<a class="codeRef" href="qcstring.html#left">left</a>(i);
<a name="l00046"></a>00046       fun = fun.<a class="codeRef" href="qcstring.html#mid">mid</a>(i+1);
<a name="l00047"></a>00047    }
<a name="l00048"></a>00048 
<a name="l00049"></a>00049    DCOPSignalConnectionList *list = connections.find(fun);
<a name="l00050"></a>00050    <span class="keywordflow">if</span> (!list) <span class="keywordflow">return</span>;
<a name="l00051"></a>00051    <span class="keywordflow">for</span>(DCOPSignalConnection *current = list-&gt;first(); current; current = list-&gt;next())
<a name="l00052"></a>00052    {
<a name="l00053"></a>00053       <span class="keywordtype">bool</span> doSend = <span class="keyword">false</span>;
<a name="l00054"></a>00054       <span class="keywordflow">if</span> (current-&gt;senderConn)
<a name="l00055"></a>00055       {
<a name="l00056"></a>00056          <span class="keywordflow">if</span> (current-&gt;senderConn == conn)
<a name="l00057"></a>00057         doSend = <span class="keyword">true</span>;
<a name="l00058"></a>00058       }
<a name="l00059"></a>00059       <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!current-&gt;sender.isEmpty())
<a name="l00060"></a>00060       {
<a name="l00061"></a>00061          <span class="keywordflow">if</span> ((conn &amp;&amp; current-&gt;sender == conn-&gt;appId) || (current-&gt;sender == <span class="stringliteral">&quot;DCOPServer&quot;</span>))
<a name="l00062"></a>00062         doSend = <span class="keyword">true</span>;
<a name="l00063"></a>00063       }
<a name="l00064"></a>00064       <span class="keywordflow">else</span>
<a name="l00065"></a>00065       {
<a name="l00066"></a>00066          doSend = <span class="keyword">true</span>;
<a name="l00067"></a>00067       }
<a name="l00068"></a>00068 
<a name="l00069"></a>00069       <span class="keywordflow">if</span> (!current-&gt;senderObj.isEmpty() &amp;&amp;
<a name="l00070"></a>00070           (current-&gt;senderObj != senderObj))
<a name="l00071"></a>00071       {
<a name="l00072"></a>00072          doSend = <span class="keyword">false</span>;
<a name="l00073"></a>00073       }
<a name="l00074"></a>00074 
<a name="l00075"></a>00075       <span class="keywordflow">if</span> (excludeSelf &amp;&amp; (conn == current-&gt;recvConn))
<a name="l00076"></a>00076          doSend = <span class="keyword">false</span>;
<a name="l00077"></a>00077       <span class="keywordflow">if</span> (doSend)
<a name="l00078"></a>00078       {
<a name="l00079"></a>00079          the_server-&gt;sendMessage(current-&gt;recvConn, conn ? conn-&gt;appId : <a class="codeRef" href="qcstring.html">QCString</a>(<span class="stringliteral">&quot;DCOPServer&quot;</span>),
<a name="l00080"></a>00080                                  current-&gt;recvConn-&gt;appId, current-&gt;recvObj,
<a name="l00081"></a>00081                                  current-&gt;slot, data);
<a name="l00082"></a>00082       }
<a name="l00083"></a>00083    }
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085 
<a name="l00096"></a>00096 <span class="keywordtype">bool</span>
<a name="l00097"></a>00097 DCOPSignals::connectSignal( <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &amp;sender, <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &amp;senderObj,
<a name="l00098"></a>00098                        <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &amp;signal,
<a name="l00099"></a>00099                        DCOPConnection *conn, <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &amp;receiverObj,
<a name="l00100"></a>00100                        <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &amp;slot, <span class="keywordtype">bool</span> Volatile)
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102    <span class="comment">// TODO: Check if signal and slot match</span>
<a name="l00103"></a>00103    <a class="codeRef" href="qcstring.html">QCString</a> signalArgs, slotArgs;
<a name="l00104"></a>00104    <span class="keywordtype">int</span> i,j;
<a name="l00105"></a>00105    i = signal.<a class="codeRef" href="qcstring.html#find">find</a>(<span class="charliteral">&#39;(&#39;</span>);
<a name="l00106"></a>00106    <span class="keywordflow">if</span> (i &lt; 0) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00107"></a>00107    signalArgs = signal.<a class="codeRef" href="qcstring.html#mid">mid</a>(i+1);
<a name="l00108"></a>00108    j = signalArgs.<a class="codeRef" href="qcstring.html#find">find</a>(<span class="charliteral">&#39;)&#39;</span>);
<a name="l00109"></a>00109    <span class="keywordflow">if</span> (j &lt; 0) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00110"></a>00110    signalArgs.<a class="codeRef" href="qcstring.html#truncate">truncate</a>(j);
<a name="l00111"></a>00111    i = slot.<a class="codeRef" href="qcstring.html#find">find</a>(<span class="charliteral">&#39;(&#39;</span>);
<a name="l00112"></a>00112    <span class="keywordflow">if</span> (i &lt; 0) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00113"></a>00113    slotArgs = slot.<a class="codeRef" href="qcstring.html#mid">mid</a>(i+1);
<a name="l00114"></a>00114    j = slotArgs.<a class="codeRef" href="qcstring.html#find">find</a>(<span class="charliteral">&#39;)&#39;</span>);
<a name="l00115"></a>00115    <span class="keywordflow">if</span> (j &lt; 0) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00116"></a>00116    slotArgs.<a class="codeRef" href="qcstring.html#truncate">truncate</a>(j);
<a name="l00117"></a>00117 
<a name="l00118"></a>00118    <span class="keywordflow">if</span>(signalArgs != slotArgs)
<a name="l00119"></a>00119    {
<a name="l00120"></a>00120       <span class="comment">// Maybe the signal has more arguments than the slot...</span>
<a name="l00121"></a>00121       <span class="keywordflow">if</span> (signalArgs.<a class="codeRef" href="qcstring.html#length">length</a>() &lt;= slotArgs.<a class="codeRef" href="qcstring.html#length">length</a>())
<a name="l00122"></a>00122          <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00123"></a>00123       <span class="keywordflow">if</span> ((slotArgs.<a class="codeRef" href="qcstring.html#length">length</a>() &gt; 0) &amp;&amp; (signalArgs[slotArgs.<a class="codeRef" href="qcstring.html#length">length</a>()] != <span class="charliteral">&#39;,&#39;</span>))
<a name="l00124"></a>00124          <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00125"></a>00125       <span class="keywordflow">if</span> (signalArgs.<a class="codeRef" href="qcstring.html#left">left</a>(slotArgs.<a class="codeRef" href="qcstring.html#length">length</a>()) != slotArgs)
<a name="l00126"></a>00126          <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00127"></a>00127    }
<a name="l00128"></a>00128 
<a name="l00129"></a>00129    DCOPConnection *senderConn = 0;
<a name="l00130"></a>00130    <span class="keywordflow">if</span> (Volatile)
<a name="l00131"></a>00131    {
<a name="l00132"></a>00132       senderConn = the_server-&gt;findApp(sender);
<a name="l00133"></a>00133       <span class="keywordflow">if</span> (!senderConn)
<a name="l00134"></a>00134          <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Sender does not exist.</span>
<a name="l00135"></a>00135    }
<a name="l00136"></a>00136    DCOPSignalConnection *current = <span class="keyword">new</span> DCOPSignalConnection;
<a name="l00137"></a>00137    current-&gt;sender = sender;
<a name="l00138"></a>00138    current-&gt;senderObj = senderObj;
<a name="l00139"></a>00139    current-&gt;senderConn = senderConn;
<a name="l00140"></a>00140    current-&gt;signal = signal;
<a name="l00141"></a>00141    current-&gt;recvConn = conn;
<a name="l00142"></a>00142    current-&gt;recvObj = receiverObj;
<a name="l00143"></a>00143    current-&gt;slot = slot;
<a name="l00144"></a>00144 
<a name="l00145"></a>00145    DCOPSignalConnectionList *list = connections.<a class="codeRef" href="qcstring.html#find">find</a>(signal);
<a name="l00146"></a>00146    <span class="keywordflow">if</span> (!list)
<a name="l00147"></a>00147    {
<a name="l00148"></a>00148       list = <span class="keyword">new</span> DCOPSignalConnectionList;
<a name="l00149"></a>00149       connections.insert(signal, list);
<a name="l00150"></a>00150    }
<a name="l00151"></a>00151 
<a name="l00152"></a>00152    list-&gt;append( current );
<a name="l00153"></a>00153    conn-&gt;signalConnectionList()-&gt;append(current);
<a name="l00154"></a>00154    <span class="keywordflow">if</span> (senderConn &amp;&amp; senderConn != conn)
<a name="l00155"></a>00155       senderConn-&gt;signalConnectionList()-&gt;append(current);
<a name="l00156"></a>00156    <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 
<a name="l00168"></a>00168 <span class="keywordtype">bool</span>
<a name="l00169"></a>00169 DCOPSignals::disconnectSignal( <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &amp;sender, <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &amp;senderObj,
<a name="l00170"></a>00170                        <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &amp;signal,
<a name="l00171"></a>00171                        DCOPConnection *conn, <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &amp;receiverObj,
<a name="l00172"></a>00172                        <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &amp;slot)
<a name="l00173"></a>00173 {
<a name="l00174"></a>00174    <span class="keywordflow">if</span> (sender.<a class="codeRef" href="qcstring.html#isEmpty">isEmpty</a>() &amp;&amp; signal.<a class="codeRef" href="qcstring.html#isEmpty">isEmpty</a>())
<a name="l00175"></a>00175    {
<a name="l00176"></a>00176       removeConnections(conn, receiverObj);
<a name="l00177"></a>00177       <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00178"></a>00178    }
<a name="l00179"></a>00179 
<a name="l00180"></a>00180    DCOPSignalConnectionList *list = connections.find(signal);
<a name="l00181"></a>00181    <span class="keywordflow">if</span> (!list)
<a name="l00182"></a>00182       <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Not found...</span>
<a name="l00183"></a>00183 
<a name="l00184"></a>00184    DCOPSignalConnection *<a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/namespaceKStdAccel.html#a3c93cec83afd9c54d443fe78a9899502">next</a> = 0;
<a name="l00185"></a>00185    <span class="keywordtype">bool</span> result = <span class="keyword">false</span>;
<a name="l00186"></a>00186 
<a name="l00187"></a>00187    <span class="keywordflow">for</span>(DCOPSignalConnection *current = list-&gt;first(); current; current = next)
<a name="l00188"></a>00188    {
<a name="l00189"></a>00189       next = list-&gt;next();
<a name="l00190"></a>00190 
<a name="l00191"></a>00191       <span class="keywordflow">if</span> (current-&gt;recvConn != conn)
<a name="l00192"></a>00192          <span class="keywordflow">continue</span>;
<a name="l00193"></a>00193 
<a name="l00194"></a>00194       <span class="keywordflow">if</span> (current-&gt;senderConn)
<a name="l00195"></a>00195       {
<a name="l00196"></a>00196          <span class="keywordflow">if</span> (current-&gt;senderConn-&gt;appId != sender)
<a name="l00197"></a>00197         <span class="keywordflow">continue</span>;
<a name="l00198"></a>00198       }
<a name="l00199"></a>00199       <span class="keywordflow">else</span> <span class="keywordflow">if</span> (current-&gt;sender != sender)
<a name="l00200"></a>00200         <span class="keywordflow">continue</span>;
<a name="l00201"></a>00201 
<a name="l00202"></a>00202       <span class="keywordflow">if</span> (!senderObj.<a class="codeRef" href="qcstring.html#isEmpty">isEmpty</a>() &amp;&amp;
<a name="l00203"></a>00203           (current-&gt;senderObj != senderObj))
<a name="l00204"></a>00204          <span class="keywordflow">continue</span>;
<a name="l00205"></a>00205 
<a name="l00206"></a>00206       <span class="keywordflow">if</span> (!receiverObj.<a class="codeRef" href="qcstring.html#isEmpty">isEmpty</a>() &amp;&amp;
<a name="l00207"></a>00207           (current-&gt;recvObj != receiverObj))
<a name="l00208"></a>00208          <span class="keywordflow">continue</span>;
<a name="l00209"></a>00209 
<a name="l00210"></a>00210       <span class="keywordflow">if</span> (!slot.<a class="codeRef" href="qcstring.html#isEmpty">isEmpty</a>() &amp;&amp;
<a name="l00211"></a>00211           (current-&gt;slot != slot))
<a name="l00212"></a>00212          <span class="keywordflow">continue</span>;
<a name="l00213"></a>00213 
<a name="l00214"></a>00214       result = <span class="keyword">true</span>;
<a name="l00215"></a>00215       list-&gt;removeRef(current);
<a name="l00216"></a>00216       conn-&gt;signalConnectionList()-&gt;removeRef(current);
<a name="l00217"></a>00217       <span class="keywordflow">if</span> (current-&gt;senderConn)
<a name="l00218"></a>00218          current-&gt;senderConn-&gt;signalConnectionList()-&gt;removeRef(current);
<a name="l00219"></a>00219       <span class="keyword">delete</span> current;
<a name="l00220"></a>00220    }
<a name="l00221"></a>00221    <span class="keywordflow">return</span> result;
<a name="l00222"></a>00222 }
<a name="l00223"></a>00223 
<a name="l00230"></a>00230 <span class="keywordtype">void</span>
<a name="l00231"></a>00231 DCOPSignals::removeConnections(DCOPConnection *conn, <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &amp;obj)
<a name="l00232"></a>00232 {
<a name="l00233"></a>00233    DCOPSignalConnectionList *list = conn-&gt;_signalConnectionList;
<a name="l00234"></a>00234    <span class="keywordflow">if</span> (!list)
<a name="l00235"></a>00235       <span class="keywordflow">return</span>; <span class="comment">// Nothing to do...</span>
<a name="l00236"></a>00236 
<a name="l00237"></a>00237    DCOPSignalConnection *next = 0;
<a name="l00238"></a>00238 
<a name="l00239"></a>00239    <span class="keywordflow">for</span>(DCOPSignalConnection *current = list-&gt;first(); current; current = next)
<a name="l00240"></a>00240    {
<a name="l00241"></a>00241       next = list-&gt;next();
<a name="l00242"></a>00242 
<a name="l00243"></a>00243       <span class="keywordflow">if</span> (!obj.<a class="codeRef" href="qcstring.html#isEmpty">isEmpty</a>())
<a name="l00244"></a>00244       {
<a name="l00245"></a>00245          <span class="keywordflow">if</span> ((current-&gt;senderConn == conn) &amp;&amp; (current-&gt;senderObj != obj))
<a name="l00246"></a>00246             <span class="keywordflow">continue</span>;
<a name="l00247"></a>00247 
<a name="l00248"></a>00248          <span class="keywordflow">if</span> ((current-&gt;recvConn == conn) &amp;&amp; (current-&gt;recvObj != obj))
<a name="l00249"></a>00249             <span class="keywordflow">continue</span>;
<a name="l00250"></a>00250       }
<a name="l00251"></a>00251 
<a name="l00252"></a>00252       <span class="keywordflow">if</span> (current-&gt;senderConn &amp;&amp; (current-&gt;senderConn != conn))
<a name="l00253"></a>00253          current-&gt;senderConn-&gt;signalConnectionList()-&gt;removeRef(current);
<a name="l00254"></a>00254 
<a name="l00255"></a>00255       <span class="keywordflow">if</span> (current-&gt;recvConn != conn)
<a name="l00256"></a>00256          current-&gt;recvConn-&gt;signalConnectionList()-&gt;removeRef(current);
<a name="l00257"></a>00257 
<a name="l00258"></a>00258       DCOPSignalConnectionList *signalList = connections.find(current-&gt;signal);
<a name="l00259"></a>00259       <span class="keywordflow">if</span> (signalList)
<a name="l00260"></a>00260       {
<a name="l00261"></a>00261          signalList-&gt;removeRef(current);
<a name="l00262"></a>00262          <span class="keywordflow">if</span> (signalList-&gt;isEmpty())
<a name="l00263"></a>00263             connections.<a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/classKShortcut.html#a32410ff25cbb5452989b60b153164a6d">remove</a>(current-&gt;signal);
<a name="l00264"></a>00264       }
<a name="l00265"></a>00265       <span class="keywordflow">else</span>
<a name="l00266"></a>00266       {
<a name="l00267"></a>00267          qDebug(<span class="stringliteral">&quot;Error: Signal Connection was not in signalList!\n&quot;</span>);
<a name="l00268"></a>00268       }
<a name="l00269"></a>00269       list-&gt;removeRef(current);
<a name="l00270"></a>00270       <span class="keyword">delete</span> current;
<a name="l00271"></a>00271    }
<a name="l00272"></a>00272 }
<a name="l00273"></a>00273 
<a name="l00274"></a>00274 
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