xorg-server-1.4/hw/xwin/winclipboardinit.c

   1 /*
   2  *Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.
   3  *
   4  *Permission is hereby granted, free of charge, to any person obtaining
   5  * a copy of this software and associated documentation files (the
   6  *"Software"), to deal in the Software without restriction, including
   7  *without limitation the rights to use, copy, modify, merge, publish,
   8  *distribute, sublicense, and/or sell copies of the Software, and to
   9  *permit persons to whom the Software is furnished to do so, subject to
  10  *the following conditions:
  11  *
  12  *The above copyright notice and this permission notice shall be
  13  *included in all copies or substantial portions of the Software.
  14  *
  15  *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
  19  *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
  20  *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21  *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  *Except as contained in this notice, the name of Harold L Hunt II
  24  *shall not be used in advertising or otherwise to promote the sale, use
  25  *or other dealings in this Software without prior written authorization
  26  *from Harold L Hunt II.
  27  *
  28  * Authors:     Harold L Hunt II
  29  */
  30
  31 #ifdef HAVE_XWIN_CONFIG_H
  32 #include <xwin-config.h>
  33 #endif
  34 #include "dixstruct.h"
  35 #include "winclipboard.h"
  36
  37
  38 /*
  39  * Local typedefs
  40  */
  41
  42 typedef int (*winDispatchProcPtr) (ClientPtr);
  43
  44 DISPATCH_PROC(winProcSetSelectionOwner);
  45
  46
  47 /*
  48  * References to external symbols
  49  */
  50
  51 extern pthread_t                g_ptClipboardProc;
  52 extern winDispatchProcPtr       winProcSetSelectionOwnerOrig;
  53 extern Bool                     g_fClipboard;
  54 extern HWND                     g_hwndClipboard;
  55
  56
  57 /*
  58  * Intialize the Clipboard module
  59  */
  60
  61 Bool
  62 winInitClipboard ()
  63 {
  64   ErrorF ("winInitClipboard ()\n");
  65
  66   /* Wrap some internal server functions */
  67   if (ProcVector[X_SetSelectionOwner] != winProcSetSelectionOwner)
  68     {
  69       winProcSetSelectionOwnerOrig = ProcVector[X_SetSelectionOwner];
  70       ProcVector[X_SetSelectionOwner] = winProcSetSelectionOwner;
  71     }
  72
  73   /* Spawn a thread for the Clipboard module */
  74   if (pthread_create (&g_ptClipboardProc,
  75                       NULL,
  76                       winClipboardProc,
  77                       NULL))
  78     {
  79       /* Bail if thread creation failed */
  80       ErrorF ("winInitClipboard - pthread_create failed.\n");
  81       return FALSE;
  82     }
  83
  84   return TRUE;
  85 }
  86
  87
  88 /*
  89  * Create the Windows window that we use to recieve Windows messages
  90  */
  91
  92 HWND
  93 winClipboardCreateMessagingWindow ()
  94 {
  95   WNDCLASS                      wc;
  96   HWND                          hwnd;
  97
  98   /* Setup our window class */
  99   wc.style = CS_HREDRAW | CS_VREDRAW;
 100   wc.lpfnWndProc = winClipboardWindowProc;
 101   wc.cbClsExtra = 0;
 102   wc.cbWndExtra = 0;
 103   wc.hInstance = GetModuleHandle (NULL);
 104   wc.hIcon = 0;
 105   wc.hCursor = 0;
 106   wc.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH);
 107   wc.lpszMenuName = NULL;
 108   wc.lpszClassName = WIN_CLIPBOARD_WINDOW_CLASS;
 109   RegisterClass (&wc);
 110
 111   /* Create the window */
 112   hwnd = CreateWindowExA (0,                    /* Extended styles */
 113                           WIN_CLIPBOARD_WINDOW_CLASS,/* Class name */
 114                           WIN_CLIPBOARD_WINDOW_TITLE,/* Window name */
 115                           WS_OVERLAPPED,        /* Not visible anyway */
 116                           CW_USEDEFAULT,        /* Horizontal position */
 117                           CW_USEDEFAULT,        /* Vertical position */
 118                           CW_USEDEFAULT,        /* Right edge */
 119                           CW_USEDEFAULT,        /* Bottom edge */
 120                           (HWND) NULL,          /* No parent or owner window */
 121                           (HMENU) NULL,         /* No menu */
 122                           GetModuleHandle (NULL),/* Instance handle */
 123                           NULL);                /* Creation data */
 124   assert (hwnd != NULL);
 125
 126   /* I'm not sure, but we may need to call this to start message processing */
 127   ShowWindow (hwnd, SW_HIDE);
 128
 129   /* Similarly, we may need a call to this even though we don't paint */
 130   UpdateWindow (hwnd);
 131
 132   return hwnd;
 133 }
 134
 135 void
 136 winFixClipboardChain (void)
 137 {
 138    if (g_fClipboard
 139        && g_hwndClipboard)
 140      {
 141        PostMessage (g_hwndClipboard, WM_WM_REINIT, 0, 0);
 142      }
 143 }