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<h1>metainfojob.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// -*- c++ -*-</span>
<a name="l00002"></a>00002 <span class="comment">// vim: ts=4 sw=4 et</span>
<a name="l00003"></a>00003 <span class="comment">/*  This file is part of the KDE libraries</span>
<a name="l00004"></a>00004 <span class="comment">    Copyright (C) 2002 Rolf Magnus &lt;ramagnus@kde.org&gt;</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 Library General Public</span>
<a name="l00008"></a>00008 <span class="comment">    License as published by the Free Software Foundation version 2.0.</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,</span>
<a name="l00011"></a>00011 <span class="comment">    but 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">    Library 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 Library General Public License</span>
<a name="l00016"></a>00016 <span class="comment">    along with this library; see the file COPYING.LIB.  If not, write to</span>
<a name="l00017"></a>00017 <span class="comment">    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00018"></a>00018 <span class="comment">    Boston, MA 02110-1301, USA.</span>
<a name="l00019"></a>00019 <span class="comment"></span>
<a name="l00020"></a>00020 <span class="comment">    $Id: metainfojob.cpp 465272 2005-09-29 09:47:40Z mueller $</span>
<a name="l00021"></a>00021 <span class="comment">*/</span>
<a name="l00022"></a>00022 
<a name="l00023"></a>00023 <span class="preprocessor">#include &lt;kdatastream.h&gt;</span> <span class="comment">// Do not remove, needed for correct bool serialization</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include &lt;kfileitem.h&gt;</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include &lt;kdebug.h&gt;</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include &lt;kfilemetainfo.h&gt;</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include &lt;kio/kservice.h&gt;</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include &lt;kparts/componentfactory.h&gt;</span>
<a name="l00029"></a>00029 
<a name="l00030"></a>00030 <span class="preprocessor">#include &lt;qtimer.h&gt;</span>
<a name="l00031"></a>00031 
<a name="l00032"></a>00032 <span class="preprocessor">#include "metainfojob.moc"</span>
<a name="l00033"></a>00033 
<a name="l00034"></a>00034 <span class="keyword">using namespace </span>KIO;
<a name="l00035"></a>00035 
<a name="l00036"></a>00036 <span class="keyword">struct </span>KIO::MetaInfoJobPrivate
<a name="l00037"></a>00037 {
<a name="l00038"></a>00038     <a class="codeRef" doxygen="qt.tag:" href="qptrlist.html">KFileItemList</a>          items;       <span class="comment">// all the items we got</span>
<a name="l00039"></a>00039     <a class="codeRef" doxygen="qt.tag:" href="qptrlistiterator.html">KFileItemListIterator</a>* currentItem; <span class="comment">// argh! No default constructor</span>
<a name="l00040"></a>00040     <span class="keywordtype">bool</span>                   deleteItems; <span class="comment">// Delete the KFileItems when done?</span>
<a name="l00041"></a>00041     <span class="keywordtype">bool</span>                   succeeded;   <span class="comment">// if the current item is ok</span>
<a name="l00042"></a>00042 };
<a name="l00043"></a>00043 
<a name="l00044"></a><a class="code" href="classKIO_1_1MetaInfoJob.html#4dbd1bbd1adf2c3ae0680f0bc9f55c55">00044</a> <a class="code" href="classKIO_1_1MetaInfoJob.html#4dbd1bbd1adf2c3ae0680f0bc9f55c55">MetaInfoJob::MetaInfoJob</a>(<span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qptrlist.html">KFileItemList</a> &amp;items, <span class="keywordtype">bool</span> deleteItems)
<a name="l00045"></a>00045     : KIO::<a class="code" href="classKIO_1_1Job.html">Job</a>(false <span class="comment">/* no GUI */</span>)
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047     d               = <span class="keyword">new</span> MetaInfoJobPrivate;
<a name="l00048"></a>00048     d-&gt;deleteItems  = deleteItems;
<a name="l00049"></a>00049     d-&gt;succeeded    = <span class="keyword">false</span>;
<a name="l00050"></a>00050     d-&gt;items        = items;
<a name="l00051"></a>00051     d-&gt;currentItem  = <span class="keyword">new</span> <a class="codeRef" doxygen="qt.tag:" href="qptrlistiterator.html">KFileItemListIterator</a>(d-&gt;items);
<a name="l00052"></a>00052 
<a name="l00053"></a>00053     d-&gt;items.setAutoDelete(deleteItems);
<a name="l00054"></a>00054 
<a name="l00055"></a>00055     <span class="keywordflow">if</span> (d-&gt;currentItem-&gt;isEmpty())
<a name="l00056"></a>00056     {
<a name="l00057"></a>00057         kdDebug(7007) &lt;&lt; <span class="stringliteral">"nothing to do for the MetaInfoJob\n"</span>;
<a name="l00058"></a>00058         <a class="code" href="classKIO_1_1Job.html#7e7c57e01250f3466f74221afce28df0">emitResult</a>();
<a name="l00059"></a>00059         <span class="keywordflow">return</span>;
<a name="l00060"></a>00060     }
<a name="l00061"></a>00061 
<a name="l00062"></a>00062     kdDebug(7007) &lt;&lt; <span class="stringliteral">"starting MetaInfoJob\n"</span>;
<a name="l00063"></a>00063 
<a name="l00064"></a>00064     <span class="comment">// Return to event loop first, determineNextFile() might delete this;</span>
<a name="l00065"></a>00065     <span class="comment">// (no idea what that means, it comes from previewjob)</span>
<a name="l00066"></a>00066     <a class="codeRef" doxygen="qt.tag:" href="qtimer.html#singleShot">QTimer::singleShot</a>(0, <span class="keyword">this</span>, SLOT(start()));
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068 
<a name="l00069"></a><a class="code" href="classKIO_1_1MetaInfoJob.html#b36d6fee845f8dceae82d5dda832515a">00069</a> <a class="code" href="classKIO_1_1MetaInfoJob.html#b36d6fee845f8dceae82d5dda832515a">MetaInfoJob::~MetaInfoJob</a>()
<a name="l00070"></a>00070 {
<a name="l00071"></a>00071     <span class="keyword">delete</span> d-&gt;currentItem;
<a name="l00072"></a>00072     <span class="keyword">delete</span> d;
<a name="l00073"></a>00073 }
<a name="l00074"></a>00074 
<a name="l00075"></a>00075 <span class="keywordtype">void</span> MetaInfoJob::start()
<a name="l00076"></a>00076 {
<a name="l00077"></a>00077     <a class="code" href="classKIO_1_1MetaInfoJob.html#28cd3aab32e07d6d1fa11cdc48f76f9d">getMetaInfo</a>();
<a name="l00078"></a>00078 }
<a name="l00079"></a>00079 
<a name="l00080"></a><a class="code" href="classKIO_1_1MetaInfoJob.html#8a6e290e2b9a98d7bf61b70cd67c07c2">00080</a> <span class="keywordtype">void</span> <a class="code" href="classKIO_1_1MetaInfoJob.html#8a6e290e2b9a98d7bf61b70cd67c07c2">MetaInfoJob::removeItem</a>(<span class="keyword">const</span> <a class="code" href="classKFileItem.html">KFileItem</a>* item)
<a name="l00081"></a>00081 {
<a name="l00082"></a>00082     <span class="keywordflow">if</span> (d-&gt;currentItem-&gt;current() == item)
<a name="l00083"></a>00083     {
<a name="l00084"></a>00084         <a class="code" href="classKIO_1_1Job.html#8119c9f1fa67c9980ed6e0f0a810ef57">subjobs</a>.first()-&gt;kill();
<a name="l00085"></a>00085         <a class="code" href="classKIO_1_1Job.html#8119c9f1fa67c9980ed6e0f0a810ef57">subjobs</a>.removeFirst();
<a name="l00086"></a>00086         determineNextFile();
<a name="l00087"></a>00087     }
<a name="l00088"></a>00088 
<a name="l00089"></a>00089     d-&gt;items.remove(d-&gt;items.find(item));
<a name="l00090"></a>00090 }
<a name="l00091"></a>00091 
<a name="l00092"></a>00092 <span class="keywordtype">void</span> MetaInfoJob::determineNextFile()
<a name="l00093"></a>00093 {
<a name="l00094"></a>00094     <span class="keywordflow">if</span> (d-&gt;currentItem-&gt;atLast())
<a name="l00095"></a>00095     {
<a name="l00096"></a>00096         kdDebug(7007) &lt;&lt; <span class="stringliteral">"finished MetaInfoJob\n"</span>;
<a name="l00097"></a>00097         <a class="code" href="classKIO_1_1Job.html#7e7c57e01250f3466f74221afce28df0">emitResult</a>();
<a name="l00098"></a>00098         <span class="keywordflow">return</span>;
<a name="l00099"></a>00099     }
<a name="l00100"></a>00100 
<a name="l00101"></a>00101     ++(*d-&gt;currentItem);
<a name="l00102"></a>00102     d-&gt;succeeded = <span class="keyword">false</span>;
<a name="l00103"></a>00103 
<a name="l00104"></a>00104     <span class="comment">// does the file item already have the needed info? Then shortcut</span>
<a name="l00105"></a>00105     <span class="keywordflow">if</span> (d-&gt;currentItem-&gt;current()-&gt;metaInfo(<span class="keyword">false</span>).isValid())
<a name="l00106"></a>00106     {
<a name="l00107"></a>00107 <span class="comment">//        kdDebug(7007) &lt;&lt; "Is already valid *************************\n";</span>
<a name="l00108"></a>00108         emit <a class="code" href="classKIO_1_1MetaInfoJob.html#e39d4ef1980b5d9bc93a6c11b1a05435">gotMetaInfo</a>(d-&gt;currentItem-&gt;current());
<a name="l00109"></a>00109         determineNextFile();
<a name="l00110"></a>00110         <span class="keywordflow">return</span>;
<a name="l00111"></a>00111     }
<a name="l00112"></a>00112 
<a name="l00113"></a>00113     <a class="code" href="classKIO_1_1MetaInfoJob.html#28cd3aab32e07d6d1fa11cdc48f76f9d">getMetaInfo</a>();
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115 
<a name="l00116"></a><a class="code" href="classKIO_1_1MetaInfoJob.html#400db711155d3ad56519f7f6022adedc">00116</a> <span class="keywordtype">void</span> <a class="code" href="classKIO_1_1MetaInfoJob.html#400db711155d3ad56519f7f6022adedc">MetaInfoJob::slotResult</a>( <a class="code" href="classKIO_1_1Job.html">KIO::Job</a> *job )
<a name="l00117"></a>00117 {
<a name="l00118"></a>00118     <a class="code" href="classKIO_1_1Job.html#8119c9f1fa67c9980ed6e0f0a810ef57">subjobs</a>.remove(job);
<a name="l00119"></a>00119     Q_ASSERT(<a class="code" href="classKIO_1_1Job.html#8119c9f1fa67c9980ed6e0f0a810ef57">subjobs</a>.isEmpty()); <span class="comment">// We should have only one job at a time ...</span>
<a name="l00120"></a>00120 
<a name="l00121"></a>00121     determineNextFile();
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123 
<a name="l00124"></a><a class="code" href="classKIO_1_1MetaInfoJob.html#28cd3aab32e07d6d1fa11cdc48f76f9d">00124</a> <span class="keywordtype">void</span> <a class="code" href="classKIO_1_1MetaInfoJob.html#28cd3aab32e07d6d1fa11cdc48f76f9d">MetaInfoJob::getMetaInfo</a>()
<a name="l00125"></a>00125 {
<a name="l00126"></a>00126     Q_ASSERT(!d-&gt;currentItem-&gt;isEmpty());
<a name="l00127"></a>00127 
<a name="l00128"></a>00128     KURL URL;
<a name="l00129"></a>00129     URL.setProtocol(<span class="stringliteral">"metainfo"</span>);
<a name="l00130"></a>00130     URL.setPath(d-&gt;currentItem-&gt;current()-&gt;url().path());
<a name="l00131"></a>00131 
<a name="l00132"></a>00132     <a class="code" href="classKIO_1_1TransferJob.html">KIO::TransferJob</a>* job = <a class="code" href="namespaceKIO.html#548287017571dc5aa2116ac8d31aaf8c">KIO::get</a>(URL, <span class="keyword">false</span>, <span class="keyword">false</span>);
<a name="l00133"></a>00133     <a class="code" href="classKIO_1_1Job.html#e1e2d1f6755e3fcc077da63521286a35">addSubjob</a>(job);
<a name="l00134"></a>00134 
<a name="l00135"></a>00135     <a class="codeRef" doxygen="qt.tag:" href="qobject.html#connect">connect</a>(job,  SIGNAL(data(<a class="code" href="classKIO_1_1Job.html">KIO::Job</a> *, <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qbytearray.html">QByteArray</a> &amp;)),
<a name="l00136"></a>00136             <span class="keyword">this</span>, SLOT(slotMetaInfo(<a class="code" href="classKIO_1_1Job.html">KIO::Job</a> *, <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qbytearray.html">QByteArray</a> &amp;)));
<a name="l00137"></a>00137 
<a name="l00138"></a>00138     job-&gt;<a class="code" href="classKIO_1_1Job.html#293a401bb466217331ded54ce3673763">addMetaData</a>(<span class="stringliteral">"mimeType"</span>, d-&gt;currentItem-&gt;current()-&gt;mimetype());
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140 
<a name="l00141"></a>00141 
<a name="l00142"></a>00142 <span class="keywordtype">void</span> MetaInfoJob::slotMetaInfo(<a class="code" href="classKIO_1_1Job.html">KIO::Job</a>*, <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qbytearray.html">QByteArray</a> &amp;data)
<a name="l00143"></a>00143 {
<a name="l00144"></a>00144     <a class="code" href="classKFileMetaInfo.html">KFileMetaInfo</a> info;
<a name="l00145"></a>00145     <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a> s(data, IO_ReadOnly);
<a name="l00146"></a>00146 
<a name="l00147"></a>00147     s &gt;&gt; info;
<a name="l00148"></a>00148 
<a name="l00149"></a>00149     d-&gt;currentItem-&gt;current()-&gt;setMetaInfo(info);
<a name="l00150"></a>00150     emit <a class="code" href="classKIO_1_1MetaInfoJob.html#e39d4ef1980b5d9bc93a6c11b1a05435">gotMetaInfo</a>(d-&gt;currentItem-&gt;current());
<a name="l00151"></a>00151     d-&gt;succeeded = <span class="keyword">true</span>;
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153 
<a name="l00154"></a><a class="code" href="classKIO_1_1MetaInfoJob.html#1dd5f0e80a6977b14a5acb97702c2ef6">00154</a> <a class="codeRef" doxygen="qt.tag:" href="qstringlist.html">QStringList</a> <a class="code" href="classKIO_1_1MetaInfoJob.html#1dd5f0e80a6977b14a5acb97702c2ef6">MetaInfoJob::availablePlugins</a>()
<a name="l00155"></a>00155 {
<a name="l00156"></a>00156     <a class="codeRef" doxygen="qt.tag:" href="qstringlist.html">QStringList</a> <a class="code" href="classKIO_1_1Job.html#c7b363bb6cc3c6fabcc9bdbf3a7751f9">result</a>;
<a name="l00157"></a>00157     <a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html">KTrader::OfferList</a> plugins = <a class="code" href="classKTrader.html#3fce6f1332504c3f4621b18cf8635ce0">KTrader::self</a>()-&gt;<a class="code" href="classKTrader.html#f317c76b7cfb2a1e8ccc0df72676b2d5">query</a>(<span class="stringliteral">"KFilePlugin"</span>);
<a name="l00158"></a>00158     <span class="keywordflow">for</span> (<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#ConstIterator">KTrader::OfferList::ConstIterator</a> it = plugins.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#begin">begin</a>(); it != plugins.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#end">end</a>(); ++it)
<a name="l00159"></a>00159         <a class="code" href="classKIO_1_1Job.html#c7b363bb6cc3c6fabcc9bdbf3a7751f9">result</a>.append((*it)-&gt;desktopEntryName());
<a name="l00160"></a>00160     <span class="keywordflow">return</span> <a class="code" href="classKIO_1_1Job.html#c7b363bb6cc3c6fabcc9bdbf3a7751f9">result</a>;
<a name="l00161"></a>00161 }
<a name="l00162"></a>00162 
<a name="l00163"></a><a class="code" href="classKIO_1_1MetaInfoJob.html#100ce7f84c53517df8f0c5d44bedea03">00163</a> <a class="codeRef" doxygen="qt.tag:" href="qstringlist.html">QStringList</a> <a class="code" href="classKIO_1_1MetaInfoJob.html#100ce7f84c53517df8f0c5d44bedea03">MetaInfoJob::supportedMimeTypes</a>()
<a name="l00164"></a>00164 {
<a name="l00165"></a>00165     <a class="codeRef" doxygen="qt.tag:" href="qstringlist.html">QStringList</a> <a class="code" href="classKIO_1_1Job.html#c7b363bb6cc3c6fabcc9bdbf3a7751f9">result</a>;
<a name="l00166"></a>00166     <a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html">KTrader::OfferList</a> plugins = <a class="code" href="classKTrader.html#3fce6f1332504c3f4621b18cf8635ce0">KTrader::self</a>()-&gt;<a class="code" href="classKTrader.html#f317c76b7cfb2a1e8ccc0df72676b2d5">query</a>(<span class="stringliteral">"KFilePlugin"</span>);
<a name="l00167"></a>00167     <span class="keywordflow">for</span> (<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#ConstIterator">KTrader::OfferList::ConstIterator</a> it = plugins.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#begin">begin</a>(); it != plugins.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#end">end</a>(); ++it)
<a name="l00168"></a>00168         <a class="code" href="classKIO_1_1Job.html#c7b363bb6cc3c6fabcc9bdbf3a7751f9">result</a> += (*it)-&gt;property(<span class="stringliteral">"MimeTypes"</span>).toStringList();
<a name="l00169"></a>00169     <span class="keywordflow">return</span> <a class="code" href="classKIO_1_1Job.html#c7b363bb6cc3c6fabcc9bdbf3a7751f9">result</a>;
<a name="l00170"></a>00170 }
<a name="l00171"></a>00171 
<a name="l00172"></a><a class="code" href="namespaceKIO.html#ff8ad9e4f4a83bb48efebad1baaf2d2b">00172</a> KIO_EXPORT <a class="code" href="classKIO_1_1MetaInfoJob.html">MetaInfoJob</a> *<a class="code" href="namespaceKIO.html#ff8ad9e4f4a83bb48efebad1baaf2d2b">KIO::fileMetaInfo</a>( <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qptrlist.html">KFileItemList</a> &amp;items)
<a name="l00173"></a>00173 {
<a name="l00174"></a>00174     <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classKIO_1_1MetaInfoJob.html">MetaInfoJob</a>(items, <span class="keyword">false</span>);
<a name="l00175"></a>00175 }
<a name="l00176"></a>00176 
<a name="l00177"></a><a class="code" href="namespaceKIO.html#5fa51c2690d95475087a4aa62d5484be">00177</a> KIO_EXPORT <a class="code" href="classKIO_1_1MetaInfoJob.html">MetaInfoJob</a> *<a class="code" href="namespaceKIO.html#ff8ad9e4f4a83bb48efebad1baaf2d2b">KIO::fileMetaInfo</a>( <span class="keyword">const</span> KURL::List &amp;items)
<a name="l00178"></a>00178 {
<a name="l00179"></a>00179     <a class="codeRef" doxygen="qt.tag:" href="qptrlist.html">KFileItemList</a> fileItems;
<a name="l00180"></a>00180     <span class="keywordflow">for</span> (KURL::List::ConstIterator it = items.begin(); it != items.end(); ++it)
<a name="l00181"></a>00181         fileItems.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#append">append</a>(<span class="keyword">new</span> <a class="code" href="classKFileItem.html">KFileItem</a>(KFileItem::Unknown, KFileItem::Unknown, *it, <span class="keyword">true</span>));
<a name="l00182"></a>00182     <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classKIO_1_1MetaInfoJob.html">MetaInfoJob</a>(fileItems, <span class="keyword">true</span>);
<a name="l00183"></a>00183 }
<a name="l00184"></a>00184 
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