Fix key handling bug 1268

1 files changed, 34 insertions, 45 deletions

diff --git a/noncore/comm/keypebble/krfbdecoder.cpp b/noncore/comm/keypebble/krfbdecoder.cpp
index 2c9ad71..db95154 100644
--- a/noncore/comm/keypebble/krfbdecoder.cpp
+++ b/noncore/comm/keypebble/krfbdecoder.cpp
@@ -206,13 +206,13 @@ void KRFBDecoder::gotDesktopName()
 {
   assert( info );
   assert( currentState == AwaitingDesktopName );
 
   qWarning( "Got desktop name" );
 
-  disconnect( con, SIGNAL( gotEnoughData() ), 
+  disconnect( con, SIGNAL( gotEnoughData() ),
 	      this, SLOT( gotDesktopName() ) );
 
   char *buf = new char[ info->nameLength + 1 ];
   CHECK_PTR( buf );
 
   con->read( buf, info->nameLength );
@@ -260,13 +260,13 @@ void KRFBDecoder::decidePixelFormat()
     chosenDepth = bestDepth;
 
   qWarning( "Screen depth=%d, server depth=%d, best depth=%d, " \
 	   "eight bit %d, chosenDepth=%d",
 	   screenDepth,
 	   info->depth,
-	   bestDepth, 
+	   bestDepth,
 	   con->options()->colors256, chosenDepth );
 
   format->depth = chosenDepth;
 
   // If we're using the servers native depth
   if ( chosenDepth == info->depth ) {
@@ -370,13 +370,13 @@ void KRFBDecoder::sendUpdateRequest( bool incremental )
 void KRFBDecoder::gotUpdateHeader()
 {
   assert( currentState == AwaitingUpdate );
 
   //  qWarning( "Got update header" );
 
-  disconnect( con, SIGNAL( gotEnoughData() ), 
+  disconnect( con, SIGNAL( gotEnoughData() ),
 	      this, SLOT( gotUpdateHeader() ) );
 
   CARD8 msgType;
   con->read( &msgType, 1 );
 
   if ( msgType != UpdateId ) {
@@ -394,13 +394,13 @@ void KRFBDecoder::gotUpdateHeader()
       QString protocolError = tr( "Protocol Error: Message Id %1 was "
                                     "found when expecting an update "
                                     "message." ).arg( msg );
       currentState = Error;
       emit error( protocolError );
     }
-    return;    
+    return;
   }
 
   CARD8 padding;
   con->read( &padding, 1 );
 
   con->read( &noRects, 2 );
@@ -417,13 +417,13 @@ void KRFBDecoder::gotUpdateHeader()
 void KRFBDecoder::gotRectHeader()
 {
   assert( currentState == AwaitingRectHeader );
 
   //  qWarning( "Got rect header" );
 
-  disconnect( con, SIGNAL( gotEnoughData() ), 
+  disconnect( con, SIGNAL( gotEnoughData() ),
 	      this, SLOT( gotRectHeader() ) );
 
   con->read( &x, 2 );
   x = Swap16IfLE( x );
   con->read( &y, 2 );
   y = Swap16IfLE( y );
@@ -433,13 +433,13 @@ void KRFBDecoder::gotRectHeader()
   con->read( &h, 2 );
   h = Swap16IfLE( h );
 
   con->read( &encoding, 4 );
 
   //  CARD32 encodingLocal = Swap32IfLE( encoding );
-  //  qWarning( "Rect: x=%d, y= %d, w=%d, h=%d, encoding=%ld", 
+  //  qWarning( "Rect: x=%d, y= %d, w=%d, h=%d, encoding=%ld",
   //	   x, y, w, h, encodingLocal );
 
   //
   // Each encoding needs to be handled differently. Some require
   // waiting for more data, but others like a copyrect do not.
   // Our constants have already been byte swapped, so we use
@@ -517,21 +517,21 @@ void KRFBDecoder::getRawRectChunk( int lines )
 }
 
 void KRFBDecoder::gotRawRectChunk()
 {
   assert( currentState == AwaitingRawRectChunk );
 
-  disconnect( con, SIGNAL( gotEnoughData() ), 
+  disconnect( con, SIGNAL( gotEnoughData() ),
               this, SLOT( gotRawRectChunk() ) );
 
   //  qWarning( "Got raw rect chunk" );
 
   //
   // Read the rect data and copy it to the buffer.
   //
-  
+
   // TODO: Replace this!
   int count = lines * w * format->bpp / 8;
   char *hack = new char[ count ];
   con->read( hack, count );
   buf->drawRawRectChunk( hack, x, y, w, lines );
   delete hack;
@@ -717,13 +717,13 @@ void KRFBDecoder::gotServerCutText()
   CHECK_PTR( cutbuf );
 
   con->read( cutbuf, serverCutTextLen );
   cutbuf[ serverCutTextLen ] = '\0';
 
   /* For some reason QApplication::clipboard()->setText() segfaults when called
-   * from within keypebble's mass of signals and slots 
+   * from within keypebble's mass of signals and slots
   qWarning( "Server cut: %s", cutbuf );
 
   QString cutText( cutbuf ); // DANGER!!
   qApp->clipboard()->setText( cutText );
   */
 
@@ -795,47 +795,36 @@ void KRFBDecoder::sendKeyReleaseEvent( QKeyEvent *event )
     con->write( &padding, 2 );
     con->write( &key, 4 );
   }
 }
 
 
+
+
+//
+// The RFB protocol spec says 'For most ordinary keys, the 'keysym'
+// is the same as the corresponding ASCII value.', but doesn't
+// elaborate what the most ordinary keys are.  The spec also lists
+// a set (possibly subset, it's unspecified) of mappings for
+// "other common keys" (backspace, tab, return, escape, etc).
+//
 int KRFBDecoder::toKeySym( QKeyEvent *k )
 {
-  int ke = 0;
-
-  ke = k->ascii();
-  // Markus: Crappy hack. I dont know why lower case letters are
-  // not defined in qkeydefs.h. The key() for e.g. 'l' == 'L'. 
-  // This sucks. :-(
-
-  if ( (ke == 'a') || (ke == 'b') || (ke == 'c') || (ke == 'd') 
-       || (ke == 'e') || (ke == 'f') || (ke == 'g') || (ke == 'h')
-       || (ke == 'i') || (ke == 'j') || (ke == 'k') || (ke == 'l')
-       || (ke == 'm') || (ke == 'n') || (ke == 'o') || (ke == 'p')
-       || (ke == 'q') || (ke == 'r') || (ke == 's') || (ke == 't')
-       || (ke == 'u') || (ke == 'v') ||( ke == 'w') || (ke == 'x')
-       || (ke == 'y') || (ke == 'z') ) {
-    ke = k->key();
-    ke = ke + 0x20;
-    return ke;
-  }
 
-  // qkeydefs = xkeydefs! :-)
-  if ( ( k->key() >= 0x0a0 ) && k->key() <= 0x0ff )
-      return k->key();
-
-  if ( ( k->key() >= 0x20 ) && ( k->key() <= 0x7e ) )
-    return k->key();
-  
-  // qkeydefs != xkeydefs! :-(
-  // This is gonna suck :-(
-
-  int i = 0;
-  while ( keyMap[i].keycode ) {
-    if ( k->key() == keyMap[i].keycode )
-	return keyMap[i].keysym;
-    i++;
-  }
+    //
+    // Try and map these "other common keys" first.
+    //
+    if ((k->key() >= Qt::Key_Escape) && (k->key() <= Qt::Key_F12)) {
+	for(int i = 0; keyMap[i].keycode != 0; i++) {
+	    if (k->key() == keyMap[i].keycode) {
+		return keyMap[i].keysym;
+	    }
+	}
+    }
 
-  return 0;
+    //
+    // If these keys aren't matched, return the ascii code and let the
+    // server figure it out.  We don't return k->key(), as the data in
+    // key differs between input methods, and we don't want special cases.
+    //
+    return k->ascii();
 }
-