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authorMike Gabriel <mike.gabriel@das-netzwerkteam.de>2015-02-02 15:02:49 +0100
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2015-02-02 15:02:49 +0100
commitb16b9e4656e7199c2aec74a4c8ebc7a875d3ba73 (patch)
tree4361edef0d42d5bf5ac984ef72b4fac35426eae7 /nx-X11/programs/Xserver/hw/xwin/winclipboardwndproc.c
parent0d5a83e986f39982c0924652a3662e60b1f23162 (diff)
downloadnx-libs-b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73.tar.gz
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massive reduction of unneeded files
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xwin/winclipboardwndproc.c')
-rw-r--r--nx-X11/programs/Xserver/hw/xwin/winclipboardwndproc.c585
1 files changed, 0 insertions, 585 deletions
diff --git a/nx-X11/programs/Xserver/hw/xwin/winclipboardwndproc.c b/nx-X11/programs/Xserver/hw/xwin/winclipboardwndproc.c
deleted file mode 100644
index a006b46d3..000000000
--- a/nx-X11/programs/Xserver/hw/xwin/winclipboardwndproc.c
+++ /dev/null
@@ -1,585 +0,0 @@
-/*
- *Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.
- *
- *Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- *"Software"), to deal in the Software without restriction, including
- *without limitation the rights to use, copy, modify, merge, publish,
- *distribute, sublicense, and/or sell copies of the Software, and to
- *permit persons to whom the Software is furnished to do so, subject to
- *the following conditions:
- *
- *The above copyright notice and this permission notice shall be
- *included in all copies or substantial portions of the Software.
- *
- *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
- *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
- *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- *Except as contained in this notice, the name of Harold L Hunt II
- *shall not be used in advertising or otherwise to promote the sale, use
- *or other dealings in this Software without prior written authorization
- *from Harold L Hunt II.
- *
- * Authors: Harold L Hunt II
- */
-
-#ifdef HAVE_XWIN_CONFIG_H
-#include <xwin-config.h>
-#endif
-#include <sys/types.h>
-#include <sys/time.h>
-#include "winclipboard.h"
-
-
-/*
- * Constants
- */
-
-#define WIN_CLIPBOARD_PROP "cyg_clipboard_prop"
-#define WIN_POLL_TIMEOUT 1
-
-
-/*
- * References to external symbols
- */
-
-extern Bool g_fUseUnicode;
-extern Bool g_fUnicodeSupport;
-extern void *g_pClipboardDisplay;
-extern Window g_iClipboardWindow;
-extern Atom g_atomLastOwnedSelection;
-
-
-/*
- * Local function prototypes
- */
-
-static Bool
-winProcessXEventsTimeout (HWND hwnd, int iWindow, Display *pDisplay,
- Bool fUseUnicode, int iTimeoutSec);
-
-
-/*
- * Process X events up to specified timeout
- */
-
-static int
-winProcessXEventsTimeout (HWND hwnd, int iWindow, Display *pDisplay,
- Bool fUseUnicode, int iTimeoutSec)
-{
- int iConnNumber;
- struct timeval tv;
- int iReturn;
- DWORD dwStopTime = (GetTickCount () / 1000) + iTimeoutSec;
-
- /* We need to ensure that all pending events are processed */
- XSync (pDisplay, FALSE);
-
- /* Get our connection number */
- iConnNumber = ConnectionNumber (pDisplay);
-
- /* Loop for X events */
- while (1)
- {
- fd_set fdsRead;
-
- /* Setup the file descriptor set */
- FD_ZERO (&fdsRead);
- FD_SET (iConnNumber, &fdsRead);
-
- /* Adjust timeout */
- tv.tv_sec = dwStopTime - (GetTickCount () / 1000);
- tv.tv_usec = 0;
-
- /* Break out if no time left */
- if (tv.tv_sec < 0)
- return WIN_XEVENTS_SUCCESS;
-
- /* Wait for a Windows event or an X event */
- iReturn = select (iConnNumber + 1,/* Highest fds number */
- &fdsRead, /* Read mask */
- NULL, /* No write mask */
- NULL, /* No exception mask */
- &tv); /* No timeout */
- if (iReturn <= 0)
- {
- ErrorF ("winProcessXEventsTimeout - Call to select () failed: %d. "
- "Bailing.\n", iReturn);
- break;
- }
-
- /* Branch on which descriptor became active */
- if (FD_ISSET (iConnNumber, &fdsRead))
- {
- /* Process X events */
- /* Exit when we see that server is shutting down */
- iReturn = winClipboardFlushXEvents (hwnd,
- iWindow,
- pDisplay,
- fUseUnicode);
- if (WIN_XEVENTS_NOTIFY == iReturn
- || WIN_XEVENTS_CONVERT == iReturn)
- {
- /* Bail out if convert or notify processed */
- return iReturn;
- }
- }
- }
-
- return WIN_XEVENTS_SUCCESS;
-}
-
-
-/*
- * Process a given Windows message
- */
-
-LRESULT CALLBACK
-winClipboardWindowProc (HWND hwnd, UINT message,
- WPARAM wParam, LPARAM lParam)
-{
- static HWND s_hwndNextViewer;
- static Bool s_fCBCInitialized;
-
- /* Branch on message type */
- switch (message)
- {
- case WM_DESTROY:
- {
- winDebug ("winClipboardWindowProc - WM_DESTROY\n");
-
- /* Remove ourselves from the clipboard chain */
- ChangeClipboardChain (hwnd, s_hwndNextViewer);
-
- s_hwndNextViewer = NULL;
-
- PostQuitMessage (0);
- }
- return 0;
-
-
- case WM_CREATE:
- {
- winDebug ("winClipboardWindowProc - WM_CREATE\n");
-
- /* Add ourselves to the clipboard viewer chain */
- s_hwndNextViewer = SetClipboardViewer (hwnd);
- if (s_hwndNextViewer == hwnd)
- {
- s_hwndNextViewer = NULL;
- winErrorFVerb (1, "winClipboardWindowProc - WM_CREATE: "
- "attempted to set next window to ourselves.");
- }
- }
- return 0;
-
-
- case WM_CHANGECBCHAIN:
- {
- static Bool s_fProcessingChangeCBChain = FALSE;
- winDebug ("winClipboardWindowProc - WM_CHANGECBCHAIN: wParam(%x) "
- "lParam(%x) s_hwndNextViewer(%x)\n",
- wParam, lParam, s_hwndNextViewer);
-
-
- /*
- * We've occasionally seen a loop in the clipboard chain. Break
- * it on the first hint of recursion.
- */
- if (! s_fProcessingChangeCBChain)
- {
- s_fProcessingChangeCBChain = TRUE;
- }
- else
- {
- winErrorFVerb (1, "winClipboardWindowProc - WM_CHANGECBCHAIN - "
- "Nested calls detected. Bailing.\n");
- winDebug ("winClipboardWindowProc - WM_CHANGECBCHAIN: Exit\n");
- return 0;
- }
-
- if ((HWND) wParam == s_hwndNextViewer)
- {
- s_hwndNextViewer = (HWND) lParam;
- if (s_hwndNextViewer == hwnd)
- {
- s_hwndNextViewer = NULL;
- winErrorFVerb (1, "winClipboardWindowProc - WM_CHANGECBCHAIN: "
- "attempted to set next window to ourselves.");
- }
- }
- else if (s_hwndNextViewer)
- SendMessage (s_hwndNextViewer, message,
- wParam, lParam);
-
- s_fProcessingChangeCBChain = FALSE;
- }
- winDebug ("winClipboardWindowProc - WM_CHANGECBCHAIN: Exit\n");
- return 0;
-
- case WM_WM_REINIT:
- {
- /* Ensure that we're in the clipboard chain. Some apps,
- * WinXP's remote desktop for one, don't play nice with the
- * chain. This message is called whenever we receive a
- * WM_ACTIVATEAPP message to ensure that we continue to
- * receive clipboard messages.
- *
- * It might be possible to detect if we're still in the chain
- * by calling SendMessage (GetClipboardViewer(),
- * WM_DRAWCLIPBOARD, 0, 0); and then seeing if we get the
- * WM_DRAWCLIPBOARD message. That, however, might be more
- * expensive than just putting ourselves back into the chain.
- */
-
- winDebug ("winClipboardWindowProc - WM_WM_REINIT: Enter\n");
- if (hwnd != GetClipboardViewer ())
- {
- winDebug (" WM_WM_REINIT: Replacing us(%x) with %x at head "
- "of chain\n", hwnd, s_hwndNextViewer);
- s_fCBCInitialized = FALSE;
- ChangeClipboardChain (hwnd, s_hwndNextViewer);
- s_hwndNextViewer = NULL;
- s_fCBCInitialized = FALSE;
- winDebug (" WM_WM_REINIT: Putting us back at head of chain.\n");
- s_hwndNextViewer = SetClipboardViewer (hwnd);
- if (s_hwndNextViewer == hwnd)
- {
- s_hwndNextViewer = NULL;
- winErrorFVerb (1, "winClipboardWindowProc - WM_WM_REINIT: "
- "attempted to set next window to ourselves.\n");
- }
- }
- else
- {
- winDebug (" WM_WM_REINIT: already at head of viewer chain.\n");
- }
- }
- winDebug ("winClipboardWindowProc - WM_WM_REINIT: Exit\n");
- return 0;
-
-
- case WM_DRAWCLIPBOARD:
- {
- static Bool s_fProcessingDrawClipboard = FALSE;
- Display *pDisplay = g_pClipboardDisplay;
- Window iWindow = g_iClipboardWindow;
- int iReturn;
-
- winDebug ("winClipboardWindowProc - WM_DRAWCLIPBOARD: Enter\n");
-
- /*
- * We've occasionally seen a loop in the clipboard chain. Break
- * it on the first hint of recursion.
- */
- if (! s_fProcessingDrawClipboard)
- {
- s_fProcessingDrawClipboard = TRUE;
- }
- else
- {
- winErrorFVerb (1, "winClipboardWindowProc - WM_DRAWCLIPBOARD - "
- "Nested calls detected. Bailing.\n");
- winDebug ("winClipboardWindowProc - WM_DRAWCLIPBOARD: Exit\n");
- return 0;
- }
-
- /* Pass the message on the next window in the clipboard viewer chain */
- if (s_hwndNextViewer)
- SendMessage (s_hwndNextViewer, message, 0, 0);
-
- /* Bail on first message */
- if (!s_fCBCInitialized)
- {
- s_fCBCInitialized = TRUE;
- s_fProcessingDrawClipboard = FALSE;
- winDebug ("winClipboardWindowProc - WM_DRAWCLIPBOARD: Exit\n");
- return 0;
- }
-
- /*
- * NOTE: We cannot bail out when NULL == GetClipboardOwner ()
- * because some applications deal with the clipboard in a manner
- * that causes the clipboard owner to be NULL when they are in
- * fact taking ownership. One example of this is the Win32
- * native compile of emacs.
- */
-
- /* Bail when we still own the clipboard */
- if (hwnd == GetClipboardOwner ())
- {
-
- winDebug ("winClipboardWindowProc - WM_DRAWCLIPBOARD - "
- "We own the clipboard, returning.\n");
- winDebug ("winClipboardWindowProc - WM_DRAWCLIPBOARD: Exit\n");
- s_fProcessingDrawClipboard = FALSE;
- return 0;
- }
-
- /*
- * Do not take ownership of the X11 selections when something
- * other than CF_TEXT or CF_UNICODETEXT has been copied
- * into the Win32 clipboard.
- */
- if (!IsClipboardFormatAvailable (CF_TEXT)
- && !IsClipboardFormatAvailable (CF_UNICODETEXT))
- {
-
- winDebug ("winClipboardWindowProc - WM_DRAWCLIPBOARD - "
- "Clipboard does not contain CF_TEXT nor "
- "CF_UNICODETEXT.\n");
-
- /*
- * We need to make sure that the X Server has processed
- * previous XSetSelectionOwner messages.
- */
- XSync (pDisplay, FALSE);
-
- winDebug("winClipboardWindowProc - XSync done.\n");
-
- /* Release PRIMARY selection if owned */
- iReturn = XGetSelectionOwner (pDisplay, XA_PRIMARY);
- if (iReturn == g_iClipboardWindow)
- {
- winDebug ("winClipboardWindowProc - WM_DRAWCLIPBOARD - "
- "PRIMARY selection is owned by us.\n");
- XSetSelectionOwner (pDisplay,
- XA_PRIMARY,
- None,
- CurrentTime);
- }
- else if (BadWindow == iReturn || BadAtom == iReturn)
- winErrorFVerb (1, "winClipboardWindowProc - WM_DRAWCLIPBOARD - "
- "XGetSelection failed for PRIMARY: %d\n", iReturn);
-
- /* Release CLIPBOARD selection if owned */
- iReturn = XGetSelectionOwner (pDisplay,
- XInternAtom (pDisplay,
- "CLIPBOARD",
- False));
- if (iReturn == g_iClipboardWindow)
- {
- winDebug ("winClipboardWindowProc - WM_DRAWCLIPBOARD - "
- "CLIPBOARD selection is owned by us.\n");
- XSetSelectionOwner (pDisplay,
- XInternAtom (pDisplay,
- "CLIPBOARD",
- False),
- None,
- CurrentTime);
- }
- else if (BadWindow == iReturn || BadAtom == iReturn)
- winErrorFVerb (1, "winClipboardWindowProc - WM_DRAWCLIPBOARD - "
- "XGetSelection failed for CLIPBOARD: %d\n", iReturn);
-
- winDebug ("winClipboardWindowProc - WM_DRAWCLIPBOARD: Exit\n");
- s_fProcessingDrawClipboard = FALSE;
- return 0;
- }
-
- /* Reassert ownership of PRIMARY */
- iReturn = XSetSelectionOwner (pDisplay,
- XA_PRIMARY,
- iWindow,
- CurrentTime);
- if (iReturn == BadAtom || iReturn == BadWindow)
- {
- winErrorFVerb (1, "winClipboardWindowProc - WM_DRAWCLIPBOARD - "
- "Could not reassert ownership of PRIMARY\n");
- }
- else
- {
- winDebug ("winClipboardWindowProc - WM_DRAWCLIPBOARD - "
- "Reasserted ownership of PRIMARY\n");
- }
-
- /* Reassert ownership of the CLIPBOARD */
- iReturn = XSetSelectionOwner (pDisplay,
- XInternAtom (pDisplay,
- "CLIPBOARD",
- False),
- iWindow,
- CurrentTime);
- if (iReturn == BadAtom || iReturn == BadWindow)
- {
- winErrorFVerb (1, "winClipboardWindowProc - WM_DRAWCLIPBOARD - "
- "Could not reassert ownership of CLIPBOARD\n");
- }
- else
- {
- winDebug ("winClipboardWindowProc - WM_DRAWCLIPBOARD - "
- "Reasserted ownership of CLIPBOARD\n");
- }
-
- /* Flush the pending SetSelectionOwner event now */
- XFlush (pDisplay);
-
- s_fProcessingDrawClipboard = FALSE;
- }
- winDebug ("winClipboardWindowProc - WM_DRAWCLIPBOARD: Exit\n");
- return 0;
-
-
- case WM_DESTROYCLIPBOARD:
- /*
- * NOTE: Intentionally do nothing.
- * Changes in the Win32 clipboard are handled by WM_DRAWCLIPBOARD
- * above. We only process this message to conform to the specs
- * for delayed clipboard rendering in Win32. You might think
- * that we need to release ownership of the X11 selections, but
- * we do not, because a WM_DRAWCLIPBOARD message will closely
- * follow this message and reassert ownership of the X11
- * selections, handling the issue for us.
- */
- return 0;
-
-
- case WM_RENDERFORMAT:
- case WM_RENDERALLFORMATS:
- {
- int iReturn;
- Display *pDisplay = g_pClipboardDisplay;
- Window iWindow = g_iClipboardWindow;
- Bool fConvertToUnicode;
-
- winDebug ("winClipboardWindowProc - WM_RENDER*FORMAT - Hello.\n");
-
- /* Flag whether to convert to Unicode or not */
- if (message == WM_RENDERALLFORMATS)
- fConvertToUnicode = FALSE;
- else
- fConvertToUnicode = g_fUnicodeSupport && (CF_UNICODETEXT == wParam);
-
- /* Request the selection contents */
- iReturn = XConvertSelection (pDisplay,
- g_atomLastOwnedSelection,
- XInternAtom (pDisplay,
- "COMPOUND_TEXT", False),
- XInternAtom (pDisplay,
- "CYGX_CUT_BUFFER", False),
- iWindow,
- CurrentTime);
- if (iReturn == BadAtom || iReturn == BadWindow)
- {
- winErrorFVerb (1, "winClipboardWindowProc - WM_RENDER*FORMAT - "
- "XConvertSelection () failed\n");
- break;
- }
-
- /* Special handling for WM_RENDERALLFORMATS */
- if (message == WM_RENDERALLFORMATS)
- {
- /* We must open and empty the clipboard */
-
- /* Close clipboard if we have it open already */
- if (GetOpenClipboardWindow () == hwnd)
- {
- CloseClipboard ();
- }
-
- if (!OpenClipboard (hwnd))
- {
- winErrorFVerb (1, "winClipboardWindowProc - WM_RENDER*FORMATS - "
- "OpenClipboard () failed: %08x\n",
- GetLastError ());
- break;
- }
-
- if (!EmptyClipboard ())
- {
- winErrorFVerb (1, "winClipboardWindowProc - WM_RENDER*FORMATS - "
- "EmptyClipboard () failed: %08x\n",
- GetLastError ());
- break;
- }
- }
-
- /* Process the SelectionNotify event */
- iReturn = winProcessXEventsTimeout (hwnd,
- iWindow,
- pDisplay,
- fConvertToUnicode,
- WIN_POLL_TIMEOUT);
- if (WIN_XEVENTS_CONVERT == iReturn)
- {
- /*
- * The selection was offered for conversion first, so we have
- * to process a second SelectionNotify event to get the actual
- * data in the selection.
- */
- iReturn = winProcessXEventsTimeout (hwnd,
- iWindow,
- pDisplay,
- fConvertToUnicode,
- WIN_POLL_TIMEOUT);
- }
-
- /*
- * The last of the up-to two calls to winProcessXEventsTimeout
- * from above had better have seen a notify event, or else we
- * are dealing with a buggy or old X11 app. In these cases we
- * have to paste some fake data to the Win32 clipboard to
- * satisfy the requirement that we write something to it.
- */
- if (WIN_XEVENTS_NOTIFY != iReturn)
- {
- /* Paste no data, to satisfy required call to SetClipboardData */
- if (g_fUnicodeSupport)
- SetClipboardData (CF_UNICODETEXT, NULL);
- SetClipboardData (CF_TEXT, NULL);
- }
-
- /* Special handling for WM_RENDERALLFORMATS */
- if (message == WM_RENDERALLFORMATS)
- {
- /* We must close the clipboard */
-
- if (!CloseClipboard ())
- {
- winErrorFVerb (1, "winClipboardWindowProc - WM_RENDERALLFORMATS - "
- "CloseClipboard () failed: %08x\n",
- GetLastError ());
- break;
- }
- }
-
- winDebug ("winClipboardWindowProc - WM_RENDER*FORMAT - Returning.\n");
- return 0;
- }
- }
-
- /* Let Windows perform default processing for unhandled messages */
- return DefWindowProc (hwnd, message, wParam, lParam);
-}
-
-
-/*
- * Process any pending Windows messages
- */
-
-BOOL
-winClipboardFlushWindowsMessageQueue (HWND hwnd)
-{
- MSG msg;
-
- /* Flush the messaging window queue */
- /* NOTE: Do not pass the hwnd of our messaging window to PeekMessage,
- * as this will filter out many non-window-specific messages that
- * are sent to our thread, such as WM_QUIT.
- */
- while (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE))
- {
- /* Dispatch the message if not WM_QUIT */
- if (msg.message == WM_QUIT)
- return FALSE;
- else
- DispatchMessage (&msg);
- }
-
- return TRUE;
-}