diff options
Diffstat (limited to 'xorg-server/hw/xwin/winclipboardwrappers.c')
| -rw-r--r-- | xorg-server/hw/xwin/winclipboardwrappers.c | 557 |
1 files changed, 265 insertions, 292 deletions
diff --git a/xorg-server/hw/xwin/winclipboardwrappers.c b/xorg-server/hw/xwin/winclipboardwrappers.c index ec6e95a8a..53b419ea0 100644 --- a/xorg-server/hw/xwin/winclipboardwrappers.c +++ b/xorg-server/hw/xwin/winclipboardwrappers.c @@ -37,7 +37,6 @@ #include "dixstruct.h" #include <X11/Xatom.h> - /* * Constants */ @@ -46,38 +45,36 @@ #define CLIP_OWN_PRIMARY 0 #define CLIP_OWN_CLIPBOARD 1 - /* * Local function prototypes */ -int winProcEstablishConnection(ClientPtr /* client */); -int winProcQueryTree(ClientPtr /* client */); -int winProcSetSelectionOwner(ClientPtr /* client */); +int winProcEstablishConnection(ClientPtr /* client */ ); +int winProcQueryTree(ClientPtr /* client */ ); +int winProcSetSelectionOwner(ClientPtr /* client */ ); + DISPATCH_PROC(winProcEstablishConnection); DISPATCH_PROC(winProcSetSelectionOwner); - /* * References to external symbols */ -extern Bool g_fUnicodeSupport; -extern int g_iNumScreens; -extern unsigned int g_uiAuthDataLen; -extern char *g_pAuthData; -extern Bool g_fXdmcpEnabled; -extern Bool g_fClipboardLaunched; -extern Bool g_fClipboardStarted; -extern Bool g_fClipboard; -extern Window g_iClipboardWindow; -extern Atom g_atomLastOwnedSelection; -extern HWND g_hwndClipboard; - -extern winDispatchProcPtr winProcEstablishConnectionOrig; -extern winDispatchProcPtr winProcQueryTreeOrig; -extern winDispatchProcPtr winProcSetSelectionOwnerOrig; - +extern Bool g_fUnicodeSupport; +extern int g_iNumScreens; +extern unsigned int g_uiAuthDataLen; +extern char *g_pAuthData; +extern Bool g_fXdmcpEnabled; +extern Bool g_fClipboardLaunched; +extern Bool g_fClipboardStarted; +extern Bool g_fClipboard; +extern Window g_iClipboardWindow; +extern Atom g_atomLastOwnedSelection; +extern HWND g_hwndClipboard; + +extern winDispatchProcPtr winProcEstablishConnectionOrig; +extern winDispatchProcPtr winProcQueryTreeOrig; +extern winDispatchProcPtr winProcSetSelectionOwnerOrig; /* * Wrapper for internal EstablishConnection function. @@ -86,109 +83,103 @@ extern winDispatchProcPtr winProcSetSelectionOwnerOrig; */ int -winProcEstablishConnection (ClientPtr client) +winProcEstablishConnection(ClientPtr client) { - int iReturn; - static int s_iCallCount = 0; - static unsigned long s_ulServerGeneration = 0; - - if (s_iCallCount == 0) ErrorF ("winProcEstablishConnection - Hello\n"); - - /* Do nothing if clipboard is not enabled */ - if (!g_fClipboard) - { - ErrorF ("winProcEstablishConnection - Clipboard is not enabled, " - "returning.\n"); - - /* Unwrap the original function, call it, and return */ - InitialVector[2] = winProcEstablishConnectionOrig; - iReturn = (*winProcEstablishConnectionOrig) (client); - winProcEstablishConnectionOrig = NULL; - return iReturn; + int iReturn; + static int s_iCallCount = 0; + static unsigned long s_ulServerGeneration = 0; + + if (s_iCallCount == 0) + ErrorF("winProcEstablishConnection - Hello\n"); + + /* Do nothing if clipboard is not enabled */ + if (!g_fClipboard) { + ErrorF("winProcEstablishConnection - Clipboard is not enabled, " + "returning.\n"); + + /* Unwrap the original function, call it, and return */ + InitialVector[2] = winProcEstablishConnectionOrig; + iReturn = (*winProcEstablishConnectionOrig) (client); + winProcEstablishConnectionOrig = NULL; + return iReturn; } - /* Watch for server reset */ - if (s_ulServerGeneration != serverGeneration) - { - /* Save new generation number */ - s_ulServerGeneration = serverGeneration; + /* Watch for server reset */ + if (s_ulServerGeneration != serverGeneration) { + /* Save new generation number */ + s_ulServerGeneration = serverGeneration; - /* Reset call count */ - s_iCallCount = 0; + /* Reset call count */ + s_iCallCount = 0; } - /* Increment call count */ - ++s_iCallCount; - - /* - * This procedure is only used for initialization. - * We can unwrap the original procedure at this point - * so that this function is no longer called until the - * server resets and the function is wrapped again. - */ - InitialVector[2] = winProcEstablishConnectionOrig; - - /* - * Call original function and bail if it fails. - * NOTE: We must do this first, since we need XdmcpOpenDisplay - * to be called before we initialize our clipboard client. - */ - iReturn = (*winProcEstablishConnectionOrig) (client); - if (iReturn != 0) - { - ErrorF ("winProcEstablishConnection - ProcEstablishConnection " - "failed, bailing.\n"); - return iReturn; + /* Increment call count */ + ++s_iCallCount; + + /* + * This procedure is only used for initialization. + * We can unwrap the original procedure at this point + * so that this function is no longer called until the + * server resets and the function is wrapped again. + */ + InitialVector[2] = winProcEstablishConnectionOrig; + + /* + * Call original function and bail if it fails. + * NOTE: We must do this first, since we need XdmcpOpenDisplay + * to be called before we initialize our clipboard client. + */ + iReturn = (*winProcEstablishConnectionOrig) (client); + if (iReturn != 0) { + ErrorF("winProcEstablishConnection - ProcEstablishConnection " + "failed, bailing.\n"); + return iReturn; } - /* Clear original function pointer */ - winProcEstablishConnectionOrig = NULL; + /* Clear original function pointer */ + winProcEstablishConnectionOrig = NULL; - /* If the clipboard client has already been started, abort */ - if (g_fClipboardLaunched) - { - ErrorF ("winProcEstablishConnection - Clipboard client already " - "launched, returning.\n"); - return iReturn; + /* If the clipboard client has already been started, abort */ + if (g_fClipboardLaunched) { + ErrorF("winProcEstablishConnection - Clipboard client already " + "launched, returning.\n"); + return iReturn; } - /* Startup the clipboard client if clipboard mode is being used */ - if (g_fClipboard) - { - /* - * NOTE: The clipboard client is started here for a reason: - * 1) Assume you are using XDMCP (e.g. XWin -query %hostname%) - * 2) If the clipboard client attaches during X Server startup, - * then it becomes the "magic client" that causes the X Server - * to reset if it exits. - * 3) XDMCP calls KillAllClients when it starts up. - * 4) The clipboard client is a client, so it is killed. - * 5) The clipboard client is the "magic client", so the X Server - * resets itself. - * 6) This repeats ad infinitum. - * 7) We avoid this by waiting until at least one client (could - * be XDM, could be another client) connects, which makes it - * almost certain that the clipboard client will not connect - * until after XDM when using XDMCP. - */ - - /* Create the clipboard client thread */ - if (!winInitClipboard ()) - { - ErrorF ("winProcEstablishConnection - winClipboardInit " - "failed.\n"); - return iReturn; - } - - ErrorF ("winProcEstablishConnection - winInitClipboard returned.\n"); + /* Startup the clipboard client if clipboard mode is being used */ + if (g_fClipboard) { + /* + * NOTE: The clipboard client is started here for a reason: + * 1) Assume you are using XDMCP (e.g. XWin -query %hostname%) + * 2) If the clipboard client attaches during X Server startup, + * then it becomes the "magic client" that causes the X Server + * to reset if it exits. + * 3) XDMCP calls KillAllClients when it starts up. + * 4) The clipboard client is a client, so it is killed. + * 5) The clipboard client is the "magic client", so the X Server + * resets itself. + * 6) This repeats ad infinitum. + * 7) We avoid this by waiting until at least one client (could + * be XDM, could be another client) connects, which makes it + * almost certain that the clipboard client will not connect + * until after XDM when using XDMCP. + */ + + /* Create the clipboard client thread */ + if (!winInitClipboard()) { + ErrorF("winProcEstablishConnection - winClipboardInit " + "failed.\n"); + return iReturn; + } + + ErrorF("winProcEstablishConnection - winInitClipboard returned.\n"); } - - /* Flag that clipboard client has been launched */ - g_fClipboardLaunched = TRUE; - return iReturn; -} + /* Flag that clipboard client has been launched */ + g_fClipboardLaunched = TRUE; + return iReturn; +} /* * Wrapper for internal SetSelectionOwner function. @@ -196,216 +187,198 @@ winProcEstablishConnection (ClientPtr client) */ int -winProcSetSelectionOwner (ClientPtr client) +winProcSetSelectionOwner(ClientPtr client) { - int i; - DrawablePtr pDrawable; - WindowPtr pWindow = None; - Bool fOwnedToNotOwned = FALSE; - static Window s_iOwners[CLIP_NUM_SELECTIONS] = {None}; - static unsigned long s_ulServerGeneration = 0; - REQUEST(xSetSelectionOwnerReq); - - REQUEST_SIZE_MATCH(xSetSelectionOwnerReq); - - winDebug("winProcSetSelectionOwner - Hello.\n"); - - /* Watch for server reset */ - if (s_ulServerGeneration != serverGeneration) - { - /* Save new generation number */ - s_ulServerGeneration = serverGeneration; - - /* Initialize static variables */ - for (i = 0; i < CLIP_NUM_SELECTIONS; ++i) - s_iOwners[i] = None; + int i; + DrawablePtr pDrawable; + WindowPtr pWindow = None; + Bool fOwnedToNotOwned = FALSE; + static Window s_iOwners[CLIP_NUM_SELECTIONS] = { None }; + static unsigned long s_ulServerGeneration = 0; + + REQUEST(xSetSelectionOwnerReq); + + REQUEST_SIZE_MATCH(xSetSelectionOwnerReq); + + winDebug("winProcSetSelectionOwner - Hello.\n"); + + /* Watch for server reset */ + if (s_ulServerGeneration != serverGeneration) { + /* Save new generation number */ + s_ulServerGeneration = serverGeneration; + + /* Initialize static variables */ + for (i = 0; i < CLIP_NUM_SELECTIONS; ++i) + s_iOwners[i] = None; } - /* Abort if clipboard not completely initialized yet */ - if (!g_fClipboardStarted) - { - /* ErrorF ("winProcSetSelectionOwner - Clipboard not yet started, " - "aborting.\n"); */ - goto winProcSetSelectionOwner_Done; + /* Abort if clipboard not completely initialized yet */ + if (!g_fClipboardStarted) { + /* ErrorF ("winProcSetSelectionOwner - Clipboard not yet started, " + "aborting.\n"); */ + goto winProcSetSelectionOwner_Done; } - - /* Grab window if we have one */ - if (None != stuff->window) - { - /* Grab the Window from the request */ - int rc = dixLookupWindow(&pWindow, stuff->window, client, DixReadAccess); - if (rc != Success) { - ErrorF ("winProcSetSelectionOwner - Found BadWindow, aborting.\n"); - goto winProcSetSelectionOwner_Done; - } + + /* Grab window if we have one */ + if (None != stuff->window) { + /* Grab the Window from the request */ + int rc = + dixLookupWindow(&pWindow, stuff->window, client, DixReadAccess); + if (rc != Success) { + ErrorF("winProcSetSelectionOwner - Found BadWindow, aborting.\n"); + goto winProcSetSelectionOwner_Done; + } } - /* Now we either have a valid window or None */ - - /* Save selection owners for monitored selections, ignore other selections */ - if (XA_PRIMARY == stuff->selection) - { - /* Look for owned -> not owned transition */ - if (None == stuff->window - && None != s_iOwners[CLIP_OWN_PRIMARY]) - { - fOwnedToNotOwned = TRUE; - - winDebug("winProcSetSelectionOwner - PRIMARY - Going from " - "owned to not owned.\n"); - - /* Adjust last owned selection */ - if (None != s_iOwners[CLIP_OWN_CLIPBOARD]) - g_atomLastOwnedSelection = MakeAtom ("CLIPBOARD", 9, TRUE); - else - g_atomLastOwnedSelection = None; - } - - /* Save new selection owner or None */ - s_iOwners[CLIP_OWN_PRIMARY] = stuff->window; - - winDebug("winProcSetSelectionOwner - PRIMARY - Now owned by: %d\n", - stuff->window); + /* Now we either have a valid window or None */ + + /* Save selection owners for monitored selections, ignore other selections */ + if (XA_PRIMARY == stuff->selection) { + /* Look for owned -> not owned transition */ + if (None == stuff->window && None != s_iOwners[CLIP_OWN_PRIMARY]) { + fOwnedToNotOwned = TRUE; + + winDebug("winProcSetSelectionOwner - PRIMARY - Going from " + "owned to not owned.\n"); + + /* Adjust last owned selection */ + if (None != s_iOwners[CLIP_OWN_CLIPBOARD]) + g_atomLastOwnedSelection = MakeAtom("CLIPBOARD", 9, TRUE); + else + g_atomLastOwnedSelection = None; + } + + /* Save new selection owner or None */ + s_iOwners[CLIP_OWN_PRIMARY] = stuff->window; + + winDebug("winProcSetSelectionOwner - PRIMARY - Now owned by: %d\n", + stuff->window); } - else if (MakeAtom ("CLIPBOARD", 9, TRUE) == stuff->selection) - { - /* Look for owned -> not owned transition */ - if (None == stuff->window - && None != s_iOwners[CLIP_OWN_CLIPBOARD]) - { - fOwnedToNotOwned = TRUE; - - winDebug("winProcSetSelectionOwner - CLIPBOARD - Going from " - "owned to not owned.\n"); - - /* Adjust last owned selection */ - if (None != s_iOwners[CLIP_OWN_PRIMARY]) - g_atomLastOwnedSelection = XA_PRIMARY; - else - g_atomLastOwnedSelection = None; - } - - /* Save new selection owner or None */ - s_iOwners[CLIP_OWN_CLIPBOARD] = stuff->window; - - winDebug("winProcSetSelectionOwner - CLIPBOARD - Now owned by: %d\n", - stuff->window); + else if (MakeAtom("CLIPBOARD", 9, TRUE) == stuff->selection) { + /* Look for owned -> not owned transition */ + if (None == stuff->window && None != s_iOwners[CLIP_OWN_CLIPBOARD]) { + fOwnedToNotOwned = TRUE; + + winDebug("winProcSetSelectionOwner - CLIPBOARD - Going from " + "owned to not owned.\n"); + + /* Adjust last owned selection */ + if (None != s_iOwners[CLIP_OWN_PRIMARY]) + g_atomLastOwnedSelection = XA_PRIMARY; + else + g_atomLastOwnedSelection = None; + } + + /* Save new selection owner or None */ + s_iOwners[CLIP_OWN_CLIPBOARD] = stuff->window; + + winDebug("winProcSetSelectionOwner - CLIPBOARD - Now owned by: %d\n", + stuff->window); } - else - goto winProcSetSelectionOwner_Done; - - /* - * At this point, if one of the selections is still owned by the - * clipboard manager then it should be marked as unowned since - * we will be taking ownership of the Win32 clipboard. - */ - if (g_iClipboardWindow == s_iOwners[CLIP_OWN_PRIMARY]) - s_iOwners[CLIP_OWN_PRIMARY] = None; - if (g_iClipboardWindow == s_iOwners[CLIP_OWN_CLIPBOARD]) - s_iOwners[CLIP_OWN_CLIPBOARD] = None; - - /* - * Handle case when selection is being disowned, - * WM_DRAWCLIPBOARD did not do the disowning, - * both monitored selections are no longer owned, - * an owned to not owned transition was detected, - * and we currently own the Win32 clipboard. - */ - if (stuff->window == None - && s_iOwners[CLIP_OWN_PRIMARY] == None - && s_iOwners[CLIP_OWN_CLIPBOARD] == None - && fOwnedToNotOwned - && g_hwndClipboard != NULL - && g_hwndClipboard == GetClipboardOwner ()) - { - winDebug("winProcSetSelectionOwner - We currently own the " - "clipboard and neither the PRIMARY nor the CLIPBOARD " - "selections are owned, releasing ownership of Win32 " - "clipboard.\n"); - - /* Release ownership of the Windows clipboard */ - OpenClipboard (NULL); - EmptyClipboard (); - CloseClipboard (); - - goto winProcSetSelectionOwner_Done; + else + goto winProcSetSelectionOwner_Done; + + /* + * At this point, if one of the selections is still owned by the + * clipboard manager then it should be marked as unowned since + * we will be taking ownership of the Win32 clipboard. + */ + if (g_iClipboardWindow == s_iOwners[CLIP_OWN_PRIMARY]) + s_iOwners[CLIP_OWN_PRIMARY] = None; + if (g_iClipboardWindow == s_iOwners[CLIP_OWN_CLIPBOARD]) + s_iOwners[CLIP_OWN_CLIPBOARD] = None; + + /* + * Handle case when selection is being disowned, + * WM_DRAWCLIPBOARD did not do the disowning, + * both monitored selections are no longer owned, + * an owned to not owned transition was detected, + * and we currently own the Win32 clipboard. + */ + if (stuff->window == None + && s_iOwners[CLIP_OWN_PRIMARY] == None + && s_iOwners[CLIP_OWN_CLIPBOARD] == None + && fOwnedToNotOwned + && g_hwndClipboard != NULL && g_hwndClipboard == GetClipboardOwner()) { + winDebug("winProcSetSelectionOwner - We currently own the " + "clipboard and neither the PRIMARY nor the CLIPBOARD " + "selections are owned, releasing ownership of Win32 " + "clipboard.\n"); + + /* Release ownership of the Windows clipboard */ + OpenClipboard(NULL); + EmptyClipboard(); + CloseClipboard(); + + goto winProcSetSelectionOwner_Done; } - /* Abort if no window at this point */ - if (None == stuff->window) - { - winDebug("winProcSetSelectionOwner - No window, returning.\n"); - goto winProcSetSelectionOwner_Done; + /* Abort if no window at this point */ + if (None == stuff->window) { + winDebug("winProcSetSelectionOwner - No window, returning.\n"); + goto winProcSetSelectionOwner_Done; } - /* Abort if invalid selection */ - if (!ValidAtom (stuff->selection)) - { - ErrorF ("winProcSetSelectionOwner - Found BadAtom, aborting.\n"); - goto winProcSetSelectionOwner_Done; + /* Abort if invalid selection */ + if (!ValidAtom(stuff->selection)) { + ErrorF("winProcSetSelectionOwner - Found BadAtom, aborting.\n"); + goto winProcSetSelectionOwner_Done; } - /* Cast Window to Drawable */ - pDrawable = (DrawablePtr) pWindow; - - /* Abort if clipboard manager is owning the selection */ - if (pDrawable->id == g_iClipboardWindow) - { - winDebug("winProcSetSelectionOwner - We changed ownership, " - "aborting.\n"); - goto winProcSetSelectionOwner_Done; + /* Cast Window to Drawable */ + pDrawable = (DrawablePtr) pWindow; + + /* Abort if clipboard manager is owning the selection */ + if (pDrawable->id == g_iClipboardWindow) { + winDebug("winProcSetSelectionOwner - We changed ownership, " + "aborting.\n"); + goto winProcSetSelectionOwner_Done; } - /* Abort if root window is taking ownership */ - if (pDrawable->id == 0) - { - ErrorF ("winProcSetSelectionOwner - Root window taking ownership, " - "aborting\n"); - goto winProcSetSelectionOwner_Done; + /* Abort if root window is taking ownership */ + if (pDrawable->id == 0) { + ErrorF("winProcSetSelectionOwner - Root window taking ownership, " + "aborting\n"); + goto winProcSetSelectionOwner_Done; } - /* Close clipboard if we have it open already */ - if (GetOpenClipboardWindow () == g_hwndClipboard) - { - CloseClipboard (); + /* Close clipboard if we have it open already */ + if (GetOpenClipboardWindow() == g_hwndClipboard) { + CloseClipboard(); } - /* Access the Windows clipboard */ - if (!OpenClipboard (g_hwndClipboard)) - { - ErrorF ("winProcSetSelectionOwner - OpenClipboard () failed: %08x\n", - (int) GetLastError ()); - goto winProcSetSelectionOwner_Done; + /* Access the Windows clipboard */ + if (!OpenClipboard(g_hwndClipboard)) { + ErrorF("winProcSetSelectionOwner - OpenClipboard () failed: %08x\n", + (int) GetLastError()); + goto winProcSetSelectionOwner_Done; } - /* Take ownership of the Windows clipboard */ - if (!EmptyClipboard ()) - { - ErrorF ("winProcSetSelectionOwner - EmptyClipboard () failed: %08x\n", - (int) GetLastError ()); - goto winProcSetSelectionOwner_Done; + /* Take ownership of the Windows clipboard */ + if (!EmptyClipboard()) { + ErrorF("winProcSetSelectionOwner - EmptyClipboard () failed: %08x\n", + (int) GetLastError()); + goto winProcSetSelectionOwner_Done; } - /* Advertise Unicode if we support it */ - if (g_fUnicodeSupport) - SetClipboardData (CF_UNICODETEXT, NULL); + /* Advertise Unicode if we support it */ + if (g_fUnicodeSupport) + SetClipboardData(CF_UNICODETEXT, NULL); - /* Always advertise regular text */ - SetClipboardData (CF_TEXT, NULL); + /* Always advertise regular text */ + SetClipboardData(CF_TEXT, NULL); - /* Save handle to last owned selection */ - g_atomLastOwnedSelection = stuff->selection; + /* Save handle to last owned selection */ + g_atomLastOwnedSelection = stuff->selection; - /* Release the clipboard */ - if (!CloseClipboard ()) - { - ErrorF ("winProcSetSelectionOwner - CloseClipboard () failed: " - "%08x\n", - (int) GetLastError ()); - goto winProcSetSelectionOwner_Done; + /* Release the clipboard */ + if (!CloseClipboard()) { + ErrorF("winProcSetSelectionOwner - CloseClipboard () failed: " + "%08x\n", (int) GetLastError()); + goto winProcSetSelectionOwner_Done; } winProcSetSelectionOwner_Done: - return (*winProcSetSelectionOwnerOrig) (client); + return (*winProcSetSelectionOwnerOrig) (client); } |