LCOV - code coverage report
Current view: directory - objdir/dist/include/mozilla/plugins - NPEventUnix.h (source / functions) Found Hit Coverage
Test: app.info Lines: 16 0 0.0 %
Date: 2012-06-02 Functions: 3 0 0.0 %

       1                 : /* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8 -*- */
       2                 : /* vim: set sw=4 ts=8 et tw=80 ft=cpp : */
       3                 : /* ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is Mozilla Plugin App.
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is
      19                 :  *   The Mozilla Foundation.
      20                 :  * Portions created by the Initial Developer are Copyright (C) 2009
      21                 :  * the Initial Developer. All Rights Reserved.
      22                 :  *
      23                 :  * Contributor(s):
      24                 :  *   Chris Jones <jones.chris.g@gmail.com>
      25                 :  *
      26                 :  * Alternatively, the contents of this file may be used under the terms of
      27                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      28                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      29                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      30                 :  * of those above. If you wish to allow use of your version of this file only
      31                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      32                 :  * use your version of this file under the terms of the MPL, indicate your
      33                 :  * decision by deleting the provisions above and replace them with the notice
      34                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      35                 :  * the provisions above, a recipient may use your version of this file under
      36                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      37                 :  *
      38                 :  * ***** END LICENSE BLOCK ***** */
      39                 : 
      40                 : #ifndef mozilla_dom_plugins_NPEventUnix_h
      41                 : #define mozilla_dom_plugins_NPEventUnix_h 1
      42                 : 
      43                 : #include "npapi.h"
      44                 : 
      45                 : #ifdef MOZ_X11
      46                 : #include "mozilla/X11Util.h"
      47                 : #endif
      48                 : 
      49                 : namespace mozilla {
      50                 : 
      51                 : namespace plugins {
      52                 : 
      53                 : struct NPRemoteEvent {
      54                 :     NPEvent event;
      55                 : };
      56                 : 
      57                 : }
      58                 : 
      59                 : }
      60                 : 
      61                 : 
      62                 : //
      63                 : // XEvent is defined as a union of all more specific X*Events.
      64                 : // Luckily, as of xorg 1.6.0 / X protocol 11 rev 0, the only pointer
      65                 : // field contained in any of these specific X*Event structs is a
      66                 : // |Display*|.  So to simplify serializing these XEvents, we make the
      67                 : // 
      68                 : // ********** XXX ASSUMPTION XXX **********
      69                 : //
      70                 : // that the process to which the event is forwarded shares the same
      71                 : // display as the process on which the event originated.
      72                 : //
      73                 : // With this simplification, serialization becomes a simple memcpy to
      74                 : // the output stream.  Deserialization starts as just a memcpy from
      75                 : // the input stream, BUT we then have to write the correct |Display*|
      76                 : // into the right field of each X*Event that contains one.
      77                 : //
      78                 : 
      79                 : namespace IPC {
      80                 : 
      81                 : template <>
      82                 : struct ParamTraits<mozilla::plugins::NPRemoteEvent>     // synonym for XEvent
      83                 : {
      84                 :     typedef mozilla::plugins::NPRemoteEvent paramType;
      85                 : 
      86               0 :     static void Write(Message* aMsg, const paramType& aParam)
      87                 :     {
      88               0 :         aMsg->WriteBytes(&aParam, sizeof(paramType));
      89               0 :     }
      90                 : 
      91               0 :     static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
      92                 :     {
      93               0 :         const char* bytes = 0;
      94                 : 
      95               0 :         if (!aMsg->ReadBytes(aIter, &bytes, sizeof(paramType))) {
      96               0 :             return false;
      97                 :         }
      98                 : 
      99               0 :         memcpy(aResult, bytes, sizeof(paramType));
     100                 : 
     101                 : #ifdef MOZ_X11
     102               0 :         SetXDisplay(aResult->event);
     103                 : #endif
     104               0 :         return true;
     105                 :     }
     106                 : 
     107                 :     static void Log(const paramType& aParam, std::wstring* aLog)
     108                 :     {
     109                 :         // TODO
     110                 :         aLog->append(L"(XEvent)");
     111                 :     }
     112                 : 
     113                 : #ifdef MOZ_X11
     114                 : private:
     115               0 :     static void SetXDisplay(XEvent& ev)
     116                 :     {
     117               0 :         Display* display = mozilla::DefaultXDisplay();
     118               0 :         if (ev.type >= KeyPress) {
     119               0 :             ev.xany.display = display;
     120                 :         }
     121                 :         else {
     122                 :             // XXX assuming that this is an error event
     123                 :             // (type == 0? not clear from Xlib.h)
     124               0 :             ev.xerror.display = display;
     125                 :         }
     126               0 :     }
     127                 : #endif
     128                 : };
     129                 : 
     130                 : } // namespace IPC
     131                 : 
     132                 : 
     133                 : #endif // ifndef mozilla_dom_plugins_NPEventX11_h

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