From kde-devel  Fri Nov 26 19:07:02 2004
From: Jakub Stachowski <stachowski () hypair ! net>
Date: Fri, 26 Nov 2004 19:07:02 +0000
To: kde-devel
Subject: Re: DNS based service discovery
Message-Id: <200411262007.03640.stachowski () hypair ! net>
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Dnia czwartek, 28 pa=BCdziernika 2004 21:50, David Faure napisa=B3:
> On Thursday 28 October 2004 21:38, Jakub Stachowski wrote:
> > Dnia czwartek, 28 pa=BCdziernika 2004 17:57, David Faure napisa=B3:
> > > > Is there any way to check what directories are "in use" (opened in
> > > > file dialog or in konqueror) ?
> > >
> > > Not currently. But a kded module could keep track of that, maybe.
> >
> > Yes. Maybe KDirLister could emit dcop signals like enteredDirectory(KUR=
L)
> > and leftDirectory(KURL). Then kded module could listen to that and know
> > what to keep track of.
>
> Yes, good idea.
>
This patch will be ok?

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--- kio/kdirlister_p.h	2004-11-26 19:49:46.000000000 +0100
+++ kio-new/kdirlister_p.h	2004-11-26 19:51:13.000000000 +0100
@@ -30,6 +30,7 @@
 #include <kurl.h>
 #include <kio/global.h>
 #include <kdirwatch.h>
+#include <dcopclient.h>
 
 class QTimer;
 class KDirLister;
@@ -229,12 +230,26 @@
 
     ~DirItem()
     {
-      if ( autoUpdates && KDirWatch::exists() )
-        kdirwatch->removeDir( url.path() );
-
+      if ( autoUpdates) 
+      {
+        if ( KDirWatch::exists() )
+	  kdirwatch->removeDir( url.path() );
+	sendSignal(false, url );
+      }
       delete rootItem;
       delete lstItems;
     }
+    
+    void sendSignal(bool entering,const KURL& url) 
+    {
+      DCOPClient* client = DCOPClient::mainClient();
+      if (!client)
+        return;
+      QByteArray data;
+      QDataStream arg( data, IO_WriteOnly );
+      arg << url;
+      client->emitDCOPSignal("KDirNotify", entering ? "enteredDirectory(KURL)" : "leftDirectory(KURL)", data );
+    }
 
     void redirect( const KURL& newUrl )
     {
@@ -242,9 +257,11 @@
       {
         if ( url.isLocalFile() )
           kdirwatch->removeDir( url.path() );
+	sendSignal(false, url );
 
         if ( newUrl.isLocalFile() )
           kdirwatch->addDir( newUrl.path() );
+	sendSignal(true, url );
       }
 
       url = newUrl;
@@ -255,14 +272,23 @@
 
     void incAutoUpdate()
     {
-      if ( autoUpdates++ == 0 && url.isLocalFile() )
-        kdirwatch->addDir( url.path() );
+      if ( autoUpdates++ == 0) 
+      { 
+        if ( url.isLocalFile() )
+          kdirwatch->addDir( url.path() );
+        sendSignal(true, url );
+      }
     }
 
     void decAutoUpdate()
     {
-      if ( --autoUpdates == 0 && url.isLocalFile() )
-        kdirwatch->removeDir( url.path() );
+      if ( --autoUpdates == 0 ) 
+      { 
+        if ( url.isLocalFile() ) 
+          kdirwatch->removeDir( url.path() );
+	sendSignal(false, url );
+      }
+
       else if ( autoUpdates < 0 )
         autoUpdates = 0;
     }

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