mDNSWindows/Applications/DNSServiceBrowser/WindowsCE/Sources/BrowserDialog.cpp

   1 /*
   2  * Copyright (c) 2002-2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22
  23     Change History (most recent first):
  24
  25 $Log: BrowserDialog.cpp,v $
  26 Revision 1.1  2003/08/21 02:16:10  bradley
  27 Rendezvous Browser for HTTP services for Windows CE/PocketPC.
  28
  29 */
  30
  31 #include        "stdafx.h"
  32
  33 #include        "Application.h"
  34
  35 #include        "DNSServices.h"
  36
  37 #include        "BrowserDialog.h"
  38
  39 #ifdef _DEBUG
  40 #define new DEBUG_NEW
  41 #undef THIS_FILE
  42 static char THIS_FILE[] = __FILE__;
  43 #endif
  44
  45 //===========================================================================================================================
  46 //      Message Map
  47 //===========================================================================================================================
  48
  49 BEGIN_MESSAGE_MAP(BrowserDialog, CDialog)
  50         //{{AFX_MSG_MAP(BrowserDialog)
  51         //}}AFX_MSG_MAP
  52 END_MESSAGE_MAP()
  53
  54 static DWORD    UTF8StringToStringObject( const char *inUTF8, CString &inObject );
  55
  56 //===========================================================================================================================
  57 //      BrowserDialog
  58 //===========================================================================================================================
  59
  60 BrowserDialog::BrowserDialog( CWnd *inParent )
  61         : CDialog( BrowserDialog::IDD, inParent )
  62 {
  63         //{{AFX_DATA_INIT(BrowserDialog)
  64                 // NOTE: the ClassWizard will add member initialization here
  65         //}}AFX_DATA_INIT
  66
  67         // Note that LoadIcon does not require a subsequent DestroyIcon in Win32.
  68
  69         mIcon = AfxGetApp()->LoadIcon( IDR_MAINFRAME );
  70 }
  71
  72 //===========================================================================================================================
  73 //      DoDataExchange
  74 //===========================================================================================================================
  75
  76 void    BrowserDialog::DoDataExchange( CDataExchange *pDX )
  77 {
  78         CDialog::DoDataExchange(pDX);
  79         //{{AFX_DATA_MAP(BrowserDialog)
  80         DDX_Control(pDX, IDC_BROWSE_LIST, mBrowserList);
  81         //}}AFX_DATA_MAP
  82 }
  83
  84 //===========================================================================================================================
  85 //      OnInitDialog
  86 //===========================================================================================================================
  87
  88 BOOL    BrowserDialog::OnInitDialog()
  89 {
  90         CString         s;
  91
  92         CDialog::OnInitDialog();
  93
  94         // Set the icon for this dialog. The framework does this automatically when the application's main window is not a dialog.
  95
  96         SetIcon( mIcon, TRUE );         // Set big icon
  97         SetIcon( mIcon, FALSE );        // Set small icon
  98
  99         CenterWindow( GetDesktopWindow() );
 100
 101         // Set up the list.
 102
 103         CRect           rect;
 104
 105         s.LoadString( IDS_BROWSER_LIST_COLUMN_NAME );
 106         mBrowserList.GetWindowRect( rect );
 107         mBrowserList.InsertColumn( 0, s, LVCFMT_LEFT, rect.Width() - 8 );
 108
 109         // Start browsing for services.
 110
 111         DNSStatus               err;
 112
 113         err = DNSBrowserCreate( 0, BrowserCallBack, this, &mBrowser );
 114         if( err )
 115         {
 116                 AfxMessageBox( IDP_SOCKETS_INIT_FAILED );
 117                 goto exit;
 118         }
 119
 120         err = DNSBrowserStartServiceSearch( mBrowser, 0, "_http._tcp", NULL );
 121         if( err )
 122         {
 123                 AfxMessageBox( IDP_SOCKETS_INIT_FAILED );
 124                 goto exit;
 125         }
 126
 127 exit:
 128         return( TRUE );
 129 }
 130
 131 //===========================================================================================================================
 132 //      BrowserCallBack [static]
 133 //===========================================================================================================================
 134
 135 void
 136         BrowserDialog::BrowserCallBack(
 137                 void *                                  inContext,
 138                 DNSBrowserRef                   inRef,
 139                 DNSStatus                               inStatusCode,
 140                 const DNSBrowserEvent * inEvent )
 141 {
 142         BrowserDialog *         dialog;
 143
 144         DNS_UNUSED( inStatusCode );
 145         dialog = reinterpret_cast < BrowserDialog * > ( inContext );
 146
 147         switch( inEvent->type )
 148         {
 149                 case kDNSBrowserEventTypeAddService:
 150                         dialog->BrowserAddService( inEvent->data.addService.name );
 151                         break;
 152
 153                 case kDNSBrowserEventTypeRemoveService:
 154                         dialog->BrowserRemoveService( inEvent->data.removeService.name );
 155                         break;
 156
 157                 default:
 158                         break;
 159         }
 160 }
 161
 162 //===========================================================================================================================
 163 //      BrowserAddService
 164 //===========================================================================================================================
 165
 166 void    BrowserDialog::BrowserAddService( const char *inName )
 167 {
 168         BrowserEntry            newEntry;
 169         INT_PTR                         n;
 170         INT_PTR                         i;
 171
 172         UTF8StringToStringObject( inName, newEntry.name );
 173
 174         n = mBrowserEntries.GetSize();
 175         for( i = 0; i < n; ++i )
 176         {
 177                 BrowserEntry &          entry = mBrowserEntries.ElementAt( i );
 178
 179                 if( entry.name.CompareNoCase( newEntry.name ) == 0 )
 180                 {
 181                         break;
 182                 }
 183         }
 184         if( i >= n )
 185         {
 186                 mBrowserEntries.Add( newEntry );
 187                 mBrowserList.InsertItem( i, newEntry.name );
 188         }
 189 }
 190
 191 //===========================================================================================================================
 192 //      BrowserRemoveService
 193 //===========================================================================================================================
 194
 195 void    BrowserDialog::BrowserRemoveService( const char *inName )
 196 {
 197         BrowserEntry            newEntry;
 198         INT_PTR                         n;
 199         INT_PTR                         i;
 200
 201         UTF8StringToStringObject( inName, newEntry.name );
 202
 203         n = mBrowserEntries.GetSize();
 204         for( i = 0; i < n; ++i )
 205         {
 206                 BrowserEntry &          entry = mBrowserEntries.ElementAt( i );
 207
 208                 if( entry.name.CompareNoCase( newEntry.name ) == 0 )
 209                 {
 210                         break;
 211                 }
 212         }
 213         if( i < n )
 214         {
 215                 mBrowserEntries.RemoveAt( i );
 216                 mBrowserList.DeleteItem( i );
 217         }
 218 }
 219
 220 #if 0
 221 #pragma mark -
 222 #endif
 223
 224 //===========================================================================================================================
 225 //      UTF8StringToStringObject
 226 //===========================================================================================================================
 227
 228 static DWORD    UTF8StringToStringObject( const char *inUTF8, CString &inObject )
 229 {
 230         DWORD                   err;
 231         int                             n;
 232         wchar_t *               unicode;
 233
 234         unicode = NULL;
 235
 236         n = MultiByteToWideChar( CP_UTF8, 0, inUTF8, -1, NULL, 0 );
 237         if( n > 0 )
 238         {
 239                 unicode = (wchar_t *) malloc( (size_t)( n * sizeof( wchar_t ) ) );
 240                 if( !unicode ) { err = ERROR_INSUFFICIENT_BUFFER; goto exit; };
 241
 242                 n = MultiByteToWideChar( CP_UTF8, 0, inUTF8, -1, unicode, n );
 243                 inObject = unicode;
 244         }
 245         else
 246         {
 247                 inObject = "";
 248         }
 249         err = 0;
 250
 251 exit:
 252         if( unicode )
 253         {
 254                 free( unicode );
 255         }
 256         return( err );
 257 }