class_c_br_ctl_sample_app_link_resolver.html

S60上实现嵌入式浏览器,可以在应用程序中嵌入浏览器,实现IE功能

          <td class="mdname" nowrap> <em>aFileName</em>, </td>
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          <td class="md" nowrap>const TDesC8 &amp;&nbsp;</td>
          <td class="mdname" nowrap> <em>aData</em></td>
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          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [private]</code></td>
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<p>
Rcognize the mime type. 
<p>
Definition at line <a class="el" href="_br_ctl_sample_app_link_resolver_8cpp-source.html#l00162">162</a> of file <a class="el" href="_br_ctl_sample_app_link_resolver_8cpp-source.html">BrCtlSampleAppLinkResolver.cpp</a>.<div class="fragment"><pre class="fragment"><a name="l00163"></a>00163     {
<a name="l00164"></a>00164     TDataRecognitionResult dataType;
<a name="l00165"></a>00165     RApaLsSession apaSession;
<a name="l00166"></a>00166     TInt ret;
<a name="l00167"></a>00167     HBufC* contentTypeString = NULL;
<a name="l00168"></a>00168 
<a name="l00169"></a>00169     User::LeaveIfError(apaSession.Connect());
<a name="l00170"></a>00170     <span class="comment">// Ask the application architecture to find the file type</span>
<a name="l00171"></a>00171     ret = apaSession.RecognizeData(aFileName, aData, dataType);
<a name="l00172"></a>00172     apaSession.Close();
<a name="l00173"></a>00173 
<a name="l00174"></a>00174     <span class="keywordflow">if</span> (ret == KErrNone &amp;&amp;
<a name="l00175"></a>00175         (dataType.iConfidence == CApaDataRecognizerType::ECertain) ||
<a name="l00176"></a>00176         (dataType.iConfidence == CApaDataRecognizerType::EProbable))
<a name="l00177"></a>00177         {
<a name="l00178"></a>00178         <span class="comment">// If the file type was found, try to match it to a known file type</span>
<a name="l00179"></a>00179         TPtrC8 mimeTypePtr = dataType.iDataType.Des8();
<a name="l00180"></a>00180         TInt len = mimeTypePtr.Length() + 1;
<a name="l00181"></a>00181         contentTypeString = HBufC::NewL(len); 
<a name="l00182"></a>00182         contentTypeString-&gt;Des().Copy(mimeTypePtr);
<a name="l00183"></a>00183         contentTypeString-&gt;Des().ZeroTerminate();
<a name="l00184"></a>00184         }
<a name="l00185"></a>00185     CleanupStack::PushL(contentTypeString);
<a name="l00186"></a>00186     <span class="keywordflow">return</span> contentTypeString;
<a name="l00187"></a>00187     }
</pre></div>
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<a class="anchor" name="fd74fceb06b713999b023e18fb096b64"></a><!-- doxytag: member="CBrCtlSampleAppLinkResolver::GetFileNameL" ref="fd74fceb06b713999b023e18fb096b64" args="(const TDesC &amp;aFileName)" --><p>
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          <td class="md" nowrap valign="top">TBool CBrCtlSampleAppLinkResolver::GetFileNameL           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const TDesC &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>aFileName</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [private]</code></td>
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<p>
Translate the file name from a URL to a valid file name in the system.. 
<p>
Definition at line <a class="el" href="_br_ctl_sample_app_link_resolver_8cpp-source.html#l00195">195</a> of file <a class="el" href="_br_ctl_sample_app_link_resolver_8cpp-source.html">BrCtlSampleAppLinkResolver.cpp</a>.<div class="fragment"><pre class="fragment"><a name="l00196"></a>00196     {
<a name="l00197"></a>00197     <span class="comment">// This function accepts URLs in the following format:</span>
<a name="l00198"></a>00198     <span class="comment">// file://filename.xxx</span>
<a name="l00199"></a>00199     <span class="comment">// file:///filename.xxx</span>
<a name="l00200"></a>00200     <span class="comment">// file://c:/filename.xxx</span>
<a name="l00201"></a>00201     <span class="comment">// file:///c:/filename.xxx</span>
<a name="l00202"></a>00202     <span class="comment">//</span>
<a name="l00203"></a>00203     _LIT(KFileScheme, <span class="stringliteral">"file://"</span>);
<a name="l00204"></a>00204     _LIT(KDefaultDrivePath, <span class="stringliteral">"C:\\"</span>);
<a name="l00205"></a>00205     _LIT(KPathChar, <span class="stringliteral">"\\"</span>);
<a name="l00206"></a>00206     
<a name="l00207"></a>00207     TInt count;
<a name="l00208"></a>00208     TInt index = 0;
<a name="l00209"></a>00209     TBool drvLetter = EFalse;
<a name="l00210"></a>00210     TUint16 c;
<a name="l00211"></a>00211     
<a name="l00212"></a>00212     <span class="comment">// Verify the file scheme</span>
<a name="l00213"></a>00213     TPtrC urlPtr(aFileName);
<a name="l00214"></a>00214     <span class="keywordflow">if</span> (urlPtr.FindF(KFileScheme) != 0)
<a name="l00215"></a>00215         {
<a name="l00216"></a>00216         <span class="keywordflow">return</span> EFalse;
<a name="l00217"></a>00217         }
<a name="l00218"></a>00218     urlPtr.Set(urlPtr.Mid(KFileScheme().Length()));
<a name="l00219"></a>00219     
<a name="l00220"></a>00220     <span class="comment">// make sure there are enough characters in the filename before</span>
<a name="l00221"></a>00221     <span class="comment">// trying to check them</span>
<a name="l00222"></a>00222     count = urlPtr.Length();
<a name="l00223"></a>00223     <span class="keywordflow">if</span>(count == 0)
<a name="l00224"></a>00224         {
<a name="l00225"></a>00225         <span class="keywordflow">return</span> EFalse;            <span class="comment">// no filename, so can't look at urlPtr[0]</span>
<a name="l00226"></a>00226         }
<a name="l00227"></a>00227     
<a name="l00228"></a>00228     <span class="comment">// Skip the first '/' if there is one</span>
<a name="l00229"></a>00229     <span class="keywordflow">if</span> (urlPtr[0] == <span class="charliteral">'/'</span>)
<a name="l00230"></a>00230         {
<a name="l00231"></a>00231         urlPtr.Set(urlPtr.Mid(1));
<a name="l00232"></a>00232         }
<a name="l00233"></a>00233     count = urlPtr.Length();
<a name="l00234"></a>00234     
<a name="l00235"></a>00235     <span class="comment">// Is there a drive letter?</span>
<a name="l00236"></a>00236     <span class="keywordflow">if</span>(count &gt; 1)
<a name="l00237"></a>00237         {
<a name="l00238"></a>00238         <span class="comment">// can check for drive letter</span>
<a name="l00239"></a>00239         <span class="keywordflow">if</span> (urlPtr[1 + index] == <span class="charliteral">':'</span>)
<a name="l00240"></a>00240             {
<a name="l00241"></a>00241             drvLetter = ETrue;
<a name="l00242"></a>00242             }
<a name="l00243"></a>00243         }
<a name="l00244"></a>00244     <span class="keywordflow">if</span>(drvLetter == EFalse)
<a name="l00245"></a>00245         {
<a name="l00246"></a>00246         <span class="comment">// 3 additional characters for the string "c:\"</span>
<a name="l00247"></a>00247         count = urlPtr.Length() + 3;
<a name="l00248"></a>00248         }
<a name="l00249"></a>00249     <a class="code" href="class_c_br_ctl_sample_app_link_resolver.html#17710d20100c676856cfb8e54134a8c3">iFileName</a> = HBufC::NewL(count);
<a name="l00250"></a>00250     <span class="keywordflow">if</span> (!drvLetter)
<a name="l00251"></a>00251         {
<a name="l00252"></a>00252         <a class="code" href="class_c_br_ctl_sample_app_link_resolver.html#17710d20100c676856cfb8e54134a8c3">iFileName</a>-&gt;Des().Append(KDefaultDrivePath);
<a name="l00253"></a>00253         }
<a name="l00254"></a>00254     
<a name="l00255"></a>00255     TBool fragment(EFalse);
<a name="l00256"></a>00256     <span class="comment">// Convert relative path containing /./ and /../ to absolute path</span>
<a name="l00257"></a>00257     <span class="keywordflow">for</span> (; index &lt; urlPtr.Length() &amp;&amp; !fragment; index ++)
<a name="l00258"></a>00258         {
<a name="l00259"></a>00259         <span class="keywordflow">switch</span>(urlPtr[index])
<a name="l00260"></a>00260             {
<a name="l00261"></a>00261             <span class="keywordflow">case</span> <span class="charliteral">'#'</span>:    <span class="comment">//Check if there is a fragment '#'</span>
<a name="l00262"></a>00262                 {
<a name="l00263"></a>00263                 fragment = ETrue;
<a name="l00264"></a>00264                 <span class="keywordflow">continue</span>; <span class="comment">// Just stop there</span>
<a name="l00265"></a>00265                 }
<a name="l00266"></a>00266                 
<a name="l00267"></a>00267             <span class="keywordflow">case</span> <span class="charliteral">'/'</span>:
<a name="l00268"></a>00268                 {
<a name="l00269"></a>00269                 <a class="code" href="class_c_br_ctl_sample_app_link_resolver.html#17710d20100c676856cfb8e54134a8c3">iFileName</a>-&gt;Des().Append(KPathChar);
<a name="l00270"></a>00270                 <span class="keywordflow">break</span>;
<a name="l00271"></a>00271                 }
<a name="l00272"></a>00272             <span class="keywordflow">case</span> <span class="charliteral">'.'</span>:
<a name="l00273"></a>00273                 {
<a name="l00274"></a>00274                 <span class="keywordflow">if</span> (index &gt; 1 &amp;&amp; urlPtr[index - 1] == <span class="charliteral">'/'</span>)
<a name="l00275"></a>00275                     {
<a name="l00276"></a>00276                     <span class="keywordflow">if</span> (index &lt; count - 1 &amp;&amp; urlPtr[index + 1] == <span class="charliteral">'/'</span>)
<a name="l00277"></a>00277                         {
<a name="l00278"></a>00278                         index ++; <span class="comment">// skip  ./</span>
<a name="l00279"></a>00279                         <span class="keywordflow">break</span>;
<a name="l00280"></a>00280                         }
<a name="l00281"></a>00281                     <span class="keywordflow">if</span> (index &gt; 2 &amp;&amp; index &lt; count - 3 &amp;&amp;
<a name="l00282"></a>00282                         urlPtr[index + 1] == <span class="charliteral">'.'</span> &amp;&amp; urlPtr[index + 2] == <span class="charliteral">'/'</span>)
<a name="l00283"></a>00283                         {
<a name="l00284"></a>00284                         TInt i = index - 2;
<a name="l00285"></a>00285                         
<a name="l00286"></a>00286                         <span class="keywordflow">for</span> (; i &gt; 0 &amp;&amp; urlPtr[i] != <span class="charliteral">'/'</span>; i--) {} <span class="comment">// skip  /../</span>
<a name="l00287"></a>00287                         
<a name="l00288"></a>00288                         <a class="code" href="class_c_br_ctl_sample_app_link_resolver.html#17710d20100c676856cfb8e54134a8c3">iFileName</a>-&gt;Des().SetLength(<a class="code" href="class_c_br_ctl_sample_app_link_resolver.html#17710d20100c676856cfb8e54134a8c3">iFileName</a>-&gt;Des().Length() - (index - i));
<a name="l00289"></a>00289                         index += 2;
<a name="l00290"></a>00290                         <span class="keywordflow">break</span>;
<a name="l00291"></a>00291                         }
<a name="l00292"></a>00292                     }
<a name="l00293"></a>00293                 }
<a name="l00294"></a>00294                 <span class="comment">// no break</span>
<a name="l00295"></a>00295                 <span class="comment">//lint -fallthrough</span>
<a name="l00296"></a>00296                 
<a name="l00297"></a>00297             <span class="keywordflow">default</span>:
<a name="l00298"></a>00298                 {
<a name="l00299"></a>00299                 c = urlPtr[index];
<a name="l00300"></a>00300                 <a class="code" href="class_c_br_ctl_sample_app_link_resolver.html#17710d20100c676856cfb8e54134a8c3">iFileName</a>-&gt;Des().Append(&amp;c, 1);
<a name="l00301"></a>00301                 <span class="keywordflow">break</span>;
<a name="l00302"></a>00302                 }
<a name="l00303"></a>00303             }   <span class="comment">// end of switch</span>
<a name="l00304"></a>00304         }
<a name="l00305"></a>00305     <span class="keywordflow">return</span> ETrue;
<a name="l00306"></a>00306 }
</pre></div>
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