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-rw-r--r--xorg-server/hw/xwin/winmultiwindowwm.c1440
1 files changed, 1440 insertions, 0 deletions
diff --git a/xorg-server/hw/xwin/winmultiwindowwm.c b/xorg-server/hw/xwin/winmultiwindowwm.c
new file mode 100644
index 000000000..5401ecdee
--- /dev/null
+++ b/xorg-server/hw/xwin/winmultiwindowwm.c
@@ -0,0 +1,1440 @@
+/*
+ *Copyright (C) 1994-2000 The XFree86 Project, Inc. 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 THE XFREE86 PROJECT 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 the XFree86 Project
+ *shall not be used in advertising or otherwise to promote the sale, use
+ *or other dealings in this Software without prior written authorization
+ *from the XFree86 Project.
+ *
+ * Authors: Kensuke Matsuzaki
+ */
+
+/* X headers */
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#ifdef __CYGWIN__
+#include <sys/select.h>
+#endif
+#include <fcntl.h>
+#include <setjmp.h>
+#define HANDLE void *
+#include <pthread.h>
+#undef HANDLE
+#include <X11/X.h>
+#include <X11/Xatom.h>
+#include <X11/Xlib.h>
+#include <X11/Xlocale.h>
+#include <X11/Xproto.h>
+#include <X11/Xutil.h>
+#include <X11/cursorfont.h>
+
+/* Windows headers */
+#ifdef __CYGWIN__
+/* Fixups to prevent collisions between Windows and X headers */
+#define ATOM DWORD
+
+#include <windows.h>
+#else
+#include <Xwindows.h>
+#endif
+
+/* Local headers */
+#include "objbase.h"
+#include "ddraw.h"
+#include "winwindow.h"
+#ifdef XWIN_MULTIWINDOWEXTWM
+#include "windowswmstr.h"
+#endif
+
+extern void winDebug(const char *format, ...);
+
+#ifndef CYGDEBUG
+#define CYGDEBUG NO
+#endif
+
+/*
+ * Constant defines
+ */
+
+#define WIN_CONNECT_RETRIES 5
+#define WIN_CONNECT_DELAY 5
+#ifdef HAS_DEVWINDOWS
+# define WIN_MSG_QUEUE_FNAME "/dev/windows"
+#endif
+#define WIN_JMP_OKAY 0
+#define WIN_JMP_ERROR_IO 2
+
+
+/*
+ * Local structures
+ */
+
+typedef struct _WMMsgNodeRec {
+ winWMMessageRec msg;
+ struct _WMMsgNodeRec *pNext;
+} WMMsgNodeRec, *WMMsgNodePtr;
+
+typedef struct _WMMsgQueueRec {
+ struct _WMMsgNodeRec *pHead;
+ struct _WMMsgNodeRec *pTail;
+ pthread_mutex_t pmMutex;
+ pthread_cond_t pcNotEmpty;
+ int nQueueSize;
+} WMMsgQueueRec, *WMMsgQueuePtr;
+
+typedef struct _WMInfo {
+ Display *pDisplay;
+ WMMsgQueueRec wmMsgQueue;
+ Atom atmWmProtos;
+ Atom atmWmDelete;
+ Atom atmPrivMap;
+ Bool fAllowOtherWM;
+} WMInfoRec, *WMInfoPtr;
+
+typedef struct _WMProcArgRec {
+ DWORD dwScreen;
+ WMInfoPtr pWMInfo;
+ pthread_mutex_t *ppmServerStarted;
+} WMProcArgRec, *WMProcArgPtr;
+
+typedef struct _XMsgProcArgRec {
+ Display *pDisplay;
+ DWORD dwScreen;
+ WMInfoPtr pWMInfo;
+ pthread_mutex_t *ppmServerStarted;
+ HWND hwndScreen;
+} XMsgProcArgRec, *XMsgProcArgPtr;
+
+
+/*
+ * References to external symbols
+ */
+
+extern char *display;
+extern void ErrorF (const char* /*f*/, ...);
+
+
+/*
+ * Prototypes for local functions
+ */
+
+static void
+PushMessage (WMMsgQueuePtr pQueue, WMMsgNodePtr pNode);
+
+static WMMsgNodePtr
+PopMessage (WMMsgQueuePtr pQueue, WMInfoPtr pWMInfo);
+
+static Bool
+InitQueue (WMMsgQueuePtr pQueue);
+
+static void
+GetWindowName (Display * pDpy, Window iWin, char **ppName);
+
+static int
+SendXMessage (Display *pDisplay, Window iWin, Atom atmType, long nData);
+
+static void
+UpdateName (WMInfoPtr pWMInfo, Window iWindow);
+
+static void*
+winMultiWindowWMProc (void* pArg);
+
+static int
+winMultiWindowWMErrorHandler (Display *pDisplay, XErrorEvent *pErr);
+
+static int
+winMultiWindowWMIOErrorHandler (Display *pDisplay);
+
+static void *
+winMultiWindowXMsgProc (void *pArg);
+
+static int
+winMultiWindowXMsgProcErrorHandler (Display *pDisplay, XErrorEvent *pErr);
+
+static int
+winMultiWindowXMsgProcIOErrorHandler (Display *pDisplay);
+
+static int
+winRedirectErrorHandler (Display *pDisplay, XErrorEvent *pErr);
+
+static void
+winInitMultiWindowWM (WMInfoPtr pWMInfo, WMProcArgPtr pProcArg);
+
+#if 0
+static void
+PreserveWin32Stack(WMInfoPtr pWMInfo, Window iWindow, UINT direction);
+#endif
+
+static Bool
+CheckAnotherWindowManager (Display *pDisplay, DWORD dwScreen);
+
+
+/*
+ * Local globals
+ */
+
+static jmp_buf g_jmpWMEntry;
+static jmp_buf g_jmpXMsgProcEntry;
+static Bool g_shutdown = FALSE;
+static Bool redirectError = FALSE;
+static Bool g_fAnotherWMRunnig = FALSE;
+
+/*
+ * PushMessage - Push a message onto the queue
+ */
+
+static void
+PushMessage (WMMsgQueuePtr pQueue, WMMsgNodePtr pNode)
+{
+
+ /* Lock the queue mutex */
+ pthread_mutex_lock (&pQueue->pmMutex);
+
+ pNode->pNext = NULL;
+
+ if (pQueue->pTail != NULL)
+ {
+ pQueue->pTail->pNext = pNode;
+ }
+ pQueue->pTail = pNode;
+
+ if (pQueue->pHead == NULL)
+ {
+ pQueue->pHead = pNode;
+ }
+
+
+#if 0
+ switch (pNode->msg.msg)
+ {
+ case WM_WM_MOVE:
+ ErrorF ("\tWM_WM_MOVE\n");
+ break;
+ case WM_WM_SIZE:
+ ErrorF ("\tWM_WM_SIZE\n");
+ break;
+ case WM_WM_RAISE:
+ ErrorF ("\tWM_WM_RAISE\n");
+ break;
+ case WM_WM_LOWER:
+ ErrorF ("\tWM_WM_LOWER\n");
+ break;
+ case WM_WM_MAP:
+ ErrorF ("\tWM_WM_MAP\n");
+ break;
+ case WM_WM_UNMAP:
+ ErrorF ("\tWM_WM_UNMAP\n");
+ break;
+ case WM_WM_KILL:
+ ErrorF ("\tWM_WM_KILL\n");
+ break;
+ case WM_WM_ACTIVATE:
+ ErrorF ("\tWM_WM_ACTIVATE\n");
+ break;
+ default:
+ ErrorF ("\tUnknown Message.\n");
+ break;
+ }
+#endif
+
+ /* Increase the count of elements in the queue by one */
+ ++(pQueue->nQueueSize);
+
+ /* Release the queue mutex */
+ pthread_mutex_unlock (&pQueue->pmMutex);
+
+ /* Signal that the queue is not empty */
+ pthread_cond_signal (&pQueue->pcNotEmpty);
+}
+
+
+#if CYGMULTIWINDOW_DEBUG
+/*
+ * QueueSize - Return the size of the queue
+ */
+
+static int
+QueueSize (WMMsgQueuePtr pQueue)
+{
+ WMMsgNodePtr pNode;
+ int nSize = 0;
+
+ /* Loop through all elements in the queue */
+ for (pNode = pQueue->pHead; pNode != NULL; pNode = pNode->pNext)
+ ++nSize;
+
+ return nSize;
+}
+#endif
+
+
+/*
+ * PopMessage - Pop a message from the queue
+ */
+
+static WMMsgNodePtr
+PopMessage (WMMsgQueuePtr pQueue, WMInfoPtr pWMInfo)
+{
+ WMMsgNodePtr pNode;
+
+ /* Lock the queue mutex */
+ pthread_mutex_lock (&pQueue->pmMutex);
+
+ /* Wait for --- */
+ while (pQueue->pHead == NULL)
+ {
+ pthread_cond_wait (&pQueue->pcNotEmpty, &pQueue->pmMutex);
+ }
+
+ pNode = pQueue->pHead;
+ if (pQueue->pHead != NULL)
+ {
+ pQueue->pHead = pQueue->pHead->pNext;
+ }
+
+ if (pQueue->pTail == pNode)
+ {
+ pQueue->pTail = NULL;
+ }
+
+ /* Drop the number of elements in the queue by one */
+ --(pQueue->nQueueSize);
+
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("Queue Size %d %d\n", pQueue->nQueueSize, QueueSize(pQueue));
+#endif
+
+ /* Release the queue mutex */
+ pthread_mutex_unlock (&pQueue->pmMutex);
+
+ return pNode;
+}
+
+
+#if 0
+/*
+ * HaveMessage -
+ */
+
+static Bool
+HaveMessage (WMMsgQueuePtr pQueue, UINT msg, Window iWindow)
+{
+ WMMsgNodePtr pNode;
+
+ for (pNode = pQueue->pHead; pNode != NULL; pNode = pNode->pNext)
+ {
+ if (pNode->msg.msg==msg && pNode->msg.iWindow==iWindow)
+ return True;
+ }
+
+ return False;
+}
+#endif
+
+
+/*
+ * InitQueue - Initialize the Window Manager message queue
+ */
+
+static
+Bool
+InitQueue (WMMsgQueuePtr pQueue)
+{
+ /* Check if the pQueue pointer is NULL */
+ if (pQueue == NULL)
+ {
+ ErrorF ("InitQueue - pQueue is NULL. Exiting.\n");
+ return FALSE;
+ }
+
+ /* Set the head and tail to NULL */
+ pQueue->pHead = NULL;
+ pQueue->pTail = NULL;
+
+ /* There are no elements initially */
+ pQueue->nQueueSize = 0;
+
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("InitQueue - Queue Size %d %d\n", pQueue->nQueueSize,
+ QueueSize(pQueue));
+#endif
+
+ ErrorF ("InitQueue - Calling pthread_mutex_init\n");
+
+ /* Create synchronization objects */
+ pthread_mutex_init (&pQueue->pmMutex, NULL);
+
+ ErrorF ("InitQueue - pthread_mutex_init returned\n");
+ ErrorF ("InitQueue - Calling pthread_cond_init\n");
+
+ pthread_cond_init (&pQueue->pcNotEmpty, NULL);
+
+ ErrorF ("InitQueue - pthread_cond_init returned\n");
+
+ return TRUE;
+}
+
+
+/*
+ * GetWindowName - Retrieve the title of an X Window
+ */
+
+static void
+GetWindowName (Display *pDisplay, Window iWin, char **ppName)
+{
+ int nResult, nNum;
+ char **ppList;
+ XTextProperty xtpName;
+
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("GetWindowName\n");
+#endif
+
+ /* Intialize ppName to NULL */
+ *ppName = NULL;
+
+ /* Try to get --- */
+ nResult = XGetWMName (pDisplay, iWin, &xtpName);
+ if (!nResult || !xtpName.value || !xtpName.nitems)
+ {
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("GetWindowName - XGetWMName failed. No name.\n");
+#endif
+ return;
+ }
+
+ /* */
+ if (xtpName.encoding == XA_STRING)
+ {
+ /* */
+ if (xtpName.value)
+ {
+ int size = xtpName.nitems * (xtpName.format >> 3);
+ *ppName = malloc(size + 1);
+ strncpy(*ppName, xtpName.value, size);
+ (*ppName)[size] = 0;
+ XFree (xtpName.value);
+ }
+
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("GetWindowName - XA_STRING %s\n", *ppName);
+#endif
+ }
+ else
+ {
+ if (XmbTextPropertyToTextList (pDisplay, &xtpName, &ppList, &nNum) >= Success && nNum > 0 && *ppList)
+ {
+ *ppName = strdup (*ppList);
+ XFreeStringList (ppList);
+ }
+ XFree (xtpName.value);
+
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("GetWindowName - %s %s\n",
+ XGetAtomName (pDisplay, xtpName.encoding), *ppName);
+#endif
+ }
+
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("GetWindowName - Returning\n");
+#endif
+}
+
+
+/*
+ * Send a message to the X server from the WM thread
+ */
+
+static int
+SendXMessage (Display *pDisplay, Window iWin, Atom atmType, long nData)
+{
+ XEvent e;
+
+ /* Prepare the X event structure */
+ e.type = ClientMessage;
+ e.xclient.window = iWin;
+ e.xclient.message_type = atmType;
+ e.xclient.format = 32;
+ e.xclient.data.l[0] = nData;
+ e.xclient.data.l[1] = CurrentTime;
+
+ /* Send the event to X */
+ return XSendEvent (pDisplay, iWin, False, NoEventMask, &e);
+}
+
+
+/*
+ * Updates the name of a HWND according to its X WM_NAME property
+ */
+
+static void
+UpdateName (WMInfoPtr pWMInfo, Window iWindow)
+{
+ char *pszName;
+ Atom atmType;
+ int fmtRet;
+ unsigned long items, remain;
+ HWND *retHwnd, hWnd;
+ XWindowAttributes attr;
+
+ hWnd = 0;
+
+ /* See if we can get the cached HWND for this window... */
+ if (XGetWindowProperty (pWMInfo->pDisplay,
+ iWindow,
+ pWMInfo->atmPrivMap,
+ 0,
+ 1,
+ False,
+ XA_INTEGER,//pWMInfo->atmPrivMap,
+ &atmType,
+ &fmtRet,
+ &items,
+ &remain,
+ (unsigned char **) &retHwnd) == Success)
+ {
+ if (retHwnd)
+ {
+ hWnd = *retHwnd;
+ XFree (retHwnd);
+ }
+ }
+
+ /* Some sanity checks */
+ if (!hWnd) return;
+ if (!IsWindow (hWnd)) return;
+
+ /* Set the Windows window name */
+ GetWindowName (pWMInfo->pDisplay, iWindow, &pszName);
+ if (pszName)
+ {
+ /* Get the window attributes */
+ XGetWindowAttributes (pWMInfo->pDisplay,
+ iWindow,
+ &attr);
+ if (!attr.override_redirect)
+ {
+ SetWindowText (hWnd, pszName);
+ winUpdateIcon (iWindow);
+ }
+
+ free (pszName);
+ }
+}
+
+
+#if 0
+/*
+ * Fix up any differences between the X11 and Win32 window stacks
+ * starting at the window passed in
+ */
+static void
+PreserveWin32Stack(WMInfoPtr pWMInfo, Window iWindow, UINT direction)
+{
+ Atom atmType;
+ int fmtRet;
+ unsigned long items, remain;
+ HWND hWnd, *retHwnd;
+ DWORD myWinProcID, winProcID;
+ Window xWindow;
+ WINDOWPLACEMENT wndPlace;
+
+ hWnd = NULL;
+ /* See if we can get the cached HWND for this window... */
+ if (XGetWindowProperty (pWMInfo->pDisplay,
+ iWindow,
+ pWMInfo->atmPrivMap,
+ 0,
+ 1,
+ False,
+ XA_INTEGER,//pWMInfo->atmPrivMap,
+ &atmType,
+ &fmtRet,
+ &items,
+ &remain,
+ (unsigned char **) &retHwnd) == Success)
+ {
+ if (retHwnd)
+ {
+ hWnd = *retHwnd;
+ XFree (retHwnd);
+ }
+ }
+
+ if (!hWnd) return;
+
+ GetWindowThreadProcessId (hWnd, &myWinProcID);
+ hWnd = GetNextWindow (hWnd, direction);
+
+ while (hWnd) {
+ GetWindowThreadProcessId (hWnd, &winProcID);
+ if (winProcID == myWinProcID)
+ {
+ wndPlace.length = sizeof(WINDOWPLACEMENT);
+ GetWindowPlacement (hWnd, &wndPlace);
+ if ( !(wndPlace.showCmd==SW_HIDE ||
+ wndPlace.showCmd==SW_MINIMIZE) )
+ {
+ xWindow = (Window)GetProp (hWnd, WIN_WID_PROP);
+ if (xWindow)
+ {
+ if (direction==GW_HWNDPREV)
+ XRaiseWindow (pWMInfo->pDisplay, xWindow);
+ else
+ XLowerWindow (pWMInfo->pDisplay, xWindow);
+ }
+ }
+ }
+ hWnd = GetNextWindow(hWnd, direction);
+ }
+}
+#endif /* PreserveWin32Stack */
+
+
+/*
+ * winMultiWindowWMProc
+ */
+
+static void *
+winMultiWindowWMProc (void *pArg)
+{
+ WMProcArgPtr pProcArg = (WMProcArgPtr)pArg;
+ WMInfoPtr pWMInfo = pProcArg->pWMInfo;
+
+ /* Initialize the Window Manager */
+ winInitMultiWindowWM (pWMInfo, pProcArg);
+
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("winMultiWindowWMProc ()\n");
+#endif
+
+ /* Loop until we explicity break out */
+ for (;;)
+ {
+ WMMsgNodePtr pNode;
+
+ if(g_fAnotherWMRunnig)/* Another Window manager exists. */
+ {
+ Sleep (1000);
+ continue;
+ }
+
+ /* Pop a message off of our queue */
+ pNode = PopMessage (&pWMInfo->wmMsgQueue, pWMInfo);
+ if (pNode == NULL)
+ {
+ /* Bail if PopMessage returns without a message */
+ /* NOTE: Remember that PopMessage is a blocking function. */
+ ErrorF ("winMultiWindowWMProc - Queue is Empty? Exiting.\n");
+ pthread_exit (NULL);
+ }
+
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("winMultiWindowWMProc - %d ms MSG: %d ID: %d\n",
+ GetTickCount (), (int)pNode->msg.msg, (int)pNode->msg.dwID);
+#endif
+
+ /* Branch on the message type */
+ switch (pNode->msg.msg)
+ {
+#if 0
+ case WM_WM_MOVE:
+ ErrorF ("\tWM_WM_MOVE\n");
+ break;
+
+ case WM_WM_SIZE:
+ ErrorF ("\tWM_WM_SIZE\n");
+ break;
+#endif
+
+ case WM_WM_RAISE:
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("\tWM_WM_RAISE\n");
+#endif
+ /* Raise the window */
+ XRaiseWindow (pWMInfo->pDisplay, pNode->msg.iWindow);
+#if 0
+ PreserveWin32Stack (pWMInfo, pNode->msg.iWindow, GW_HWNDPREV);
+#endif
+ break;
+
+ case WM_WM_LOWER:
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("\tWM_WM_LOWER\n");
+#endif
+
+ /* Lower the window */
+ XLowerWindow (pWMInfo->pDisplay, pNode->msg.iWindow);
+ break;
+
+ case WM_WM_MAP:
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("\tWM_WM_MAP\n");
+#endif
+ /* Put a note as to the HWND associated with this Window */
+ XChangeProperty (pWMInfo->pDisplay,
+ pNode->msg.iWindow,
+ pWMInfo->atmPrivMap,
+ XA_INTEGER,//pWMInfo->atmPrivMap,
+ 32,
+ PropModeReplace,
+ (unsigned char *) &(pNode->msg.hwndWindow),
+ 1);
+ UpdateName (pWMInfo, pNode->msg.iWindow);
+ winUpdateIcon (pNode->msg.iWindow);
+#if 0
+ /* Handles the case where there are AOT windows above it in W32 */
+ PreserveWin32Stack (pWMInfo, pNode->msg.iWindow, GW_HWNDPREV);
+#endif
+ break;
+
+ case WM_WM_UNMAP:
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("\tWM_WM_UNMAP\n");
+#endif
+
+ /* Unmap the window */
+ XUnmapWindow (pWMInfo->pDisplay, pNode->msg.iWindow);
+ break;
+
+ case WM_WM_KILL:
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("\tWM_WM_KILL\n");
+#endif
+ {
+ int i, n, found = 0;
+ Atom *protocols;
+
+ /* --- */
+ if (XGetWMProtocols (pWMInfo->pDisplay,
+ pNode->msg.iWindow,
+ &protocols,
+ &n))
+ {
+ for (i = 0; i < n; ++i)
+ if (protocols[i] == pWMInfo->atmWmDelete)
+ ++found;
+
+ XFree (protocols);
+ }
+
+ /* --- */
+ if (found)
+ SendXMessage (pWMInfo->pDisplay,
+ pNode->msg.iWindow,
+ pWMInfo->atmWmProtos,
+ pWMInfo->atmWmDelete);
+ else
+ XKillClient (pWMInfo->pDisplay,
+ pNode->msg.iWindow);
+ }
+ break;
+
+ case WM_WM_ACTIVATE:
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("\tWM_WM_ACTIVATE\n");
+#endif
+
+ /* Set the input focus */
+ XSetInputFocus (pWMInfo->pDisplay,
+ pNode->msg.iWindow,
+ RevertToPointerRoot,
+ CurrentTime);
+ break;
+
+ case WM_WM_NAME_EVENT:
+ UpdateName (pWMInfo, pNode->msg.iWindow);
+ break;
+
+ case WM_WM_HINTS_EVENT:
+ winUpdateIcon (pNode->msg.iWindow);
+ break;
+
+ case WM_WM_CHANGE_STATE:
+ /* Minimize the window in Windows */
+ winMinimizeWindow (pNode->msg.iWindow);
+ break;
+
+ default:
+ ErrorF ("winMultiWindowWMProc - Unknown Message. Exiting.\n");
+ pthread_exit (NULL);
+ break;
+ }
+
+ /* Free the retrieved message */
+ free (pNode);
+
+ /* Flush any pending events on our display */
+ XFlush (pWMInfo->pDisplay);
+ }
+
+ /* Free the condition variable */
+ pthread_cond_destroy (&pWMInfo->wmMsgQueue.pcNotEmpty);
+
+ /* Free the mutex variable */
+ pthread_mutex_destroy (&pWMInfo->wmMsgQueue.pmMutex);
+
+ /* Free the passed-in argument */
+ free (pProcArg);
+
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF("-winMultiWindowWMProc ()\n");
+#endif
+}
+
+
+/*
+ * X message procedure
+ */
+
+static void *
+winMultiWindowXMsgProc (void *pArg)
+{
+ winWMMessageRec msg;
+ XMsgProcArgPtr pProcArg = (XMsgProcArgPtr) pArg;
+ char pszDisplay[512];
+ int iRetries;
+ XEvent event;
+ Atom atmWmName;
+ Atom atmWmHints;
+ Atom atmWmChange;
+ int iReturn;
+ XIconSize *xis;
+
+ ErrorF ("winMultiWindowXMsgProc - Hello\n");
+
+ /* Check that argument pointer is not invalid */
+ if (pProcArg == NULL)
+ {
+ ErrorF ("winMultiWindowXMsgProc - pProcArg is NULL. Exiting.\n");
+ pthread_exit (NULL);
+ }
+
+ ErrorF ("winMultiWindowXMsgProc - Calling pthread_mutex_lock ()\n");
+
+ /* Grab the server started mutex - pause until we get it */
+ iReturn = pthread_mutex_lock (pProcArg->ppmServerStarted);
+ if (iReturn != 0)
+ {
+ ErrorF ("winMultiWindowXMsgProc - pthread_mutex_lock () failed: %d. "
+ "Exiting.\n",
+ iReturn);
+ pthread_exit (NULL);
+ }
+
+ ErrorF ("winMultiWindowXMsgProc - pthread_mutex_lock () returned.\n");
+
+ /* Allow multiple threads to access Xlib */
+ if (XInitThreads () == 0)
+ {
+ ErrorF ("winMultiWindowXMsgProc - XInitThreads () failed. Exiting.\n");
+ pthread_exit (NULL);
+ }
+
+ /* See if X supports the current locale */
+ if (XSupportsLocale () == False)
+ {
+ ErrorF ("winMultiWindowXMsgProc - Locale not supported by X. "
+ "Exiting.\n");
+ pthread_exit (NULL);
+ }
+
+ /* Release the server started mutex */
+ pthread_mutex_unlock (pProcArg->ppmServerStarted);
+
+ ErrorF ("winMultiWindowXMsgProc - pthread_mutex_unlock () returned.\n");
+
+ /* Set jump point for IO Error exits */
+ iReturn = setjmp (g_jmpXMsgProcEntry);
+
+ /* Check if we should continue operations */
+ if (iReturn != WIN_JMP_ERROR_IO
+ && iReturn != WIN_JMP_OKAY)
+ {
+ /* setjmp returned an unknown value, exit */
+ ErrorF ("winInitMultiWindowXMsgProc - setjmp returned: %d. Exiting.\n",
+ iReturn);
+ pthread_exit (NULL);
+ }
+ else if (iReturn == WIN_JMP_ERROR_IO)
+ {
+ ErrorF ("winInitMultiWindowXMsgProc - Caught IO Error. Exiting.\n");
+ pthread_exit (NULL);
+ }
+
+ /* Install our error handler */
+ XSetErrorHandler (winMultiWindowXMsgProcErrorHandler);
+ XSetIOErrorHandler (winMultiWindowXMsgProcIOErrorHandler);
+
+ /* Setup the display connection string x */
+ snprintf (pszDisplay,
+ 512, "127.0.0.1:%s.%d", display, (int)pProcArg->dwScreen);
+
+ /* Print the display connection string */
+ ErrorF ("winMultiWindowXMsgProc - DISPLAY=%s\n", pszDisplay);
+
+ /* Initialize retry count */
+ iRetries = 0;
+
+ /* Open the X display */
+ do
+ {
+ /* Try to open the display */
+ pProcArg->pDisplay = XOpenDisplay (pszDisplay);
+ if (pProcArg->pDisplay == NULL)
+ {
+ ErrorF ("winMultiWindowXMsgProc - Could not open display, try: %d, "
+ "sleeping: %d\n\f",
+ iRetries + 1, WIN_CONNECT_DELAY);
+ ++iRetries;
+ sleep (WIN_CONNECT_DELAY);
+ continue;
+ }
+ else
+ break;
+ }
+ while (pProcArg->pDisplay == NULL && iRetries < WIN_CONNECT_RETRIES);
+
+ /* Make sure that the display opened */
+ if (pProcArg->pDisplay == NULL)
+ {
+ ErrorF ("winMultiWindowXMsgProc - Failed opening the display. "
+ "Exiting.\n");
+ pthread_exit (NULL);
+ }
+
+ ErrorF ("winMultiWindowXMsgProc - XOpenDisplay () returned and "
+ "successfully opened the display.\n");
+
+ /* Check if another window manager is already running */
+ if (pProcArg->pWMInfo->fAllowOtherWM)
+ {
+ g_fAnotherWMRunnig = CheckAnotherWindowManager (pProcArg->pDisplay, pProcArg->dwScreen);
+ } else {
+ redirectError = FALSE;
+ XSetErrorHandler (winRedirectErrorHandler);
+ XSelectInput(pProcArg->pDisplay,
+ RootWindow (pProcArg->pDisplay, pProcArg->dwScreen),
+ SubstructureNotifyMask | ButtonPressMask);
+ XSync (pProcArg->pDisplay, 0);
+ XSetErrorHandler (winMultiWindowXMsgProcErrorHandler);
+ if (redirectError)
+ {
+ ErrorF ("winMultiWindowXMsgProc - "
+ "another window manager is running. Exiting.\n");
+ pthread_exit (NULL);
+ }
+ g_fAnotherWMRunnig = FALSE;
+ }
+
+ /* Set up the supported icon sizes */
+ xis = XAllocIconSize ();
+ if (xis)
+ {
+ xis->min_width = xis->min_height = 16;
+ xis->max_width = xis->max_height = 48;
+ xis->width_inc = xis->height_inc = 16;
+ XSetIconSizes (pProcArg->pDisplay,
+ RootWindow (pProcArg->pDisplay, pProcArg->dwScreen),
+ xis,
+ 1);
+ XFree (xis);
+ }
+
+ atmWmName = XInternAtom (pProcArg->pDisplay,
+ "WM_NAME",
+ False);
+ atmWmHints = XInternAtom (pProcArg->pDisplay,
+ "WM_HINTS",
+ False);
+ atmWmChange = XInternAtom (pProcArg->pDisplay,
+ "WM_CHANGE_STATE",
+ False);
+
+ /* Loop until we explicitly break out */
+ while (1)
+ {
+ if (g_shutdown)
+ break;
+
+ if (pProcArg->pWMInfo->fAllowOtherWM && !XPending (pProcArg->pDisplay))
+ {
+ if (CheckAnotherWindowManager (pProcArg->pDisplay, pProcArg->dwScreen))
+ {
+ if (!g_fAnotherWMRunnig)
+ {
+ g_fAnotherWMRunnig = TRUE;
+ SendMessage(*(HWND*)pProcArg->hwndScreen, WM_UNMANAGE, 0, 0);
+ }
+ }
+ else
+ {
+ if (g_fAnotherWMRunnig)
+ {
+ g_fAnotherWMRunnig = FALSE;
+ SendMessage(*(HWND*)pProcArg->hwndScreen, WM_MANAGE, 0, 0);
+ }
+ }
+ Sleep (500);
+ continue;
+ }
+
+ /* Fetch next event */
+ XNextEvent (pProcArg->pDisplay, &event);
+
+ /* Branch on event type */
+ if (event.type == CreateNotify)
+ {
+ XWindowAttributes attr;
+
+ XSelectInput (pProcArg->pDisplay,
+ event.xcreatewindow.window,
+ PropertyChangeMask);
+
+ /* Get the window attributes */
+ XGetWindowAttributes (pProcArg->pDisplay,
+ event.xcreatewindow.window,
+ &attr);
+
+ if (!attr.override_redirect)
+ XSetWindowBorderWidth(pProcArg->pDisplay,
+ event.xcreatewindow.window,
+ 0);
+ }
+ else if (event.type == PropertyNotify
+ && event.xproperty.atom == atmWmName)
+ {
+ memset (&msg, 0, sizeof (msg));
+
+ msg.msg = WM_WM_NAME_EVENT;
+ msg.iWindow = event.xproperty.window;
+
+ /* Other fields ignored */
+ winSendMessageToWM (pProcArg->pWMInfo, &msg);
+ }
+ else if (event.type == PropertyNotify
+ && event.xproperty.atom == atmWmHints)
+ {
+ memset (&msg, 0, sizeof (msg));
+
+ msg.msg = WM_WM_HINTS_EVENT;
+ msg.iWindow = event.xproperty.window;
+
+ /* Other fields ignored */
+ winSendMessageToWM (pProcArg->pWMInfo, &msg);
+ }
+ else if (event.type == ClientMessage
+ && event.xclient.message_type == atmWmChange
+ && event.xclient.data.l[0] == IconicState)
+ {
+ ErrorF ("winMultiWindowXMsgProc - WM_CHANGE_STATE - IconicState\n");
+
+ memset (&msg, 0, sizeof (msg));
+
+ msg.msg = WM_WM_CHANGE_STATE;
+ msg.iWindow = event.xclient.window;
+
+ winSendMessageToWM (pProcArg->pWMInfo, &msg);
+ }
+ }
+
+ XCloseDisplay (pProcArg->pDisplay);
+ pthread_exit (NULL);
+
+}
+
+
+/*
+ * winInitWM - Entry point for the X server to spawn
+ * the Window Manager thread. Called from
+ * winscrinit.c/winFinishScreenInitFB ().
+ */
+
+Bool
+winInitWM (void **ppWMInfo,
+ pthread_t *ptWMProc,
+ pthread_t *ptXMsgProc,
+ pthread_mutex_t *ppmServerStarted,
+ int dwScreen,
+ HWND hwndScreen,
+ BOOL allowOtherWM)
+{
+ WMProcArgPtr pArg = (WMProcArgPtr) malloc (sizeof(WMProcArgRec));
+ WMInfoPtr pWMInfo = (WMInfoPtr) malloc (sizeof(WMInfoRec));
+ XMsgProcArgPtr pXMsgArg = (XMsgProcArgPtr) malloc (sizeof(XMsgProcArgRec));
+
+ /* Bail if the input parameters are bad */
+ if (pArg == NULL || pWMInfo == NULL)
+ {
+ ErrorF ("winInitWM - malloc failed.\n");
+ return FALSE;
+ }
+
+ /* Zero the allocated memory */
+ ZeroMemory (pArg, sizeof (WMProcArgRec));
+ ZeroMemory (pWMInfo, sizeof (WMInfoRec));
+ ZeroMemory (pXMsgArg, sizeof (XMsgProcArgRec));
+
+ /* Set a return pointer to the Window Manager info structure */
+ *ppWMInfo = pWMInfo;
+ pWMInfo->fAllowOtherWM = allowOtherWM;
+
+ /* Setup the argument structure for the thread function */
+ pArg->dwScreen = dwScreen;
+ pArg->pWMInfo = pWMInfo;
+ pArg->ppmServerStarted = ppmServerStarted;
+
+ /* Intialize the message queue */
+ if (!InitQueue (&pWMInfo->wmMsgQueue))
+ {
+ ErrorF ("winInitWM - InitQueue () failed.\n");
+ return FALSE;
+ }
+
+ /* Spawn a thread for the Window Manager */
+ if (pthread_create (ptWMProc, NULL, winMultiWindowWMProc, pArg))
+ {
+ /* Bail if thread creation failed */
+ ErrorF ("winInitWM - pthread_create failed for Window Manager.\n");
+ return FALSE;
+ }
+
+ /* Spawn the XNextEvent thread, will send messages to WM */
+ pXMsgArg->dwScreen = dwScreen;
+ pXMsgArg->pWMInfo = pWMInfo;
+ pXMsgArg->ppmServerStarted = ppmServerStarted;
+ pXMsgArg->hwndScreen = hwndScreen;
+ if (pthread_create (ptXMsgProc, NULL, winMultiWindowXMsgProc, pXMsgArg))
+ {
+ /* Bail if thread creation failed */
+ ErrorF ("winInitWM - pthread_create failed on XMSG.\n");
+ return FALSE;
+ }
+
+#if CYGDEBUG || YES
+ winDebug ("winInitWM - Returning.\n");
+#endif
+
+ return TRUE;
+}
+
+
+/*
+ * Window manager thread - setup
+ */
+
+static void
+winInitMultiWindowWM (WMInfoPtr pWMInfo, WMProcArgPtr pProcArg)
+{
+ int iRetries = 0;
+ char pszDisplay[512];
+ int iReturn;
+
+ ErrorF ("winInitMultiWindowWM - Hello\n");
+
+ /* Check that argument pointer is not invalid */
+ if (pProcArg == NULL)
+ {
+ ErrorF ("winInitMultiWindowWM - pProcArg is NULL. Exiting.\n");
+ pthread_exit (NULL);
+ }
+
+ ErrorF ("winInitMultiWindowWM - Calling pthread_mutex_lock ()\n");
+
+ /* Grab our garbage mutex to satisfy pthread_cond_wait */
+ iReturn = pthread_mutex_lock (pProcArg->ppmServerStarted);
+ if (iReturn != 0)
+ {
+ ErrorF ("winInitMultiWindowWM - pthread_mutex_lock () failed: %d. "
+ "Exiting.\n",
+ iReturn);
+ pthread_exit (NULL);
+ }
+
+ ErrorF ("winInitMultiWindowWM - pthread_mutex_lock () returned.\n");
+
+ /* Allow multiple threads to access Xlib */
+ if (XInitThreads () == 0)
+ {
+ ErrorF ("winInitMultiWindowWM - XInitThreads () failed. Exiting.\n");
+ pthread_exit (NULL);
+ }
+
+ /* See if X supports the current locale */
+ if (XSupportsLocale () == False)
+ {
+ ErrorF ("winInitMultiWindowWM - Locale not supported by X. Exiting.\n");
+ pthread_exit (NULL);
+ }
+
+ /* Release the server started mutex */
+ pthread_mutex_unlock (pProcArg->ppmServerStarted);
+
+ ErrorF ("winInitMultiWindowWM - pthread_mutex_unlock () returned.\n");
+
+ /* Set jump point for IO Error exits */
+ iReturn = setjmp (g_jmpWMEntry);
+
+ /* Check if we should continue operations */
+ if (iReturn != WIN_JMP_ERROR_IO
+ && iReturn != WIN_JMP_OKAY)
+ {
+ /* setjmp returned an unknown value, exit */
+ ErrorF ("winInitMultiWindowWM - setjmp returned: %d. Exiting.\n",
+ iReturn);
+ pthread_exit (NULL);
+ }
+ else if (iReturn == WIN_JMP_ERROR_IO)
+ {
+ ErrorF ("winInitMultiWindowWM - Caught IO Error. Exiting.\n");
+ pthread_exit (NULL);
+ }
+
+ /* Install our error handler */
+ XSetErrorHandler (winMultiWindowWMErrorHandler);
+ XSetIOErrorHandler (winMultiWindowWMIOErrorHandler);
+
+ /* Setup the display connection string x */
+ snprintf (pszDisplay,
+ 512,
+ "127.0.0.1:%s.%d",
+ display,
+ (int) pProcArg->dwScreen);
+
+ /* Print the display connection string */
+ ErrorF ("winInitMultiWindowWM - DISPLAY=%s\n", pszDisplay);
+
+ /* Open the X display */
+ do
+ {
+ /* Try to open the display */
+ pWMInfo->pDisplay = XOpenDisplay (pszDisplay);
+ if (pWMInfo->pDisplay == NULL)
+ {
+ ErrorF ("winInitMultiWindowWM - Could not open display, try: %d, "
+ "sleeping: %d\n\f",
+ iRetries + 1, WIN_CONNECT_DELAY);
+ ++iRetries;
+ sleep (WIN_CONNECT_DELAY);
+ continue;
+ }
+ else
+ break;
+ }
+ while (pWMInfo->pDisplay == NULL && iRetries < WIN_CONNECT_RETRIES);
+
+ /* Make sure that the display opened */
+ if (pWMInfo->pDisplay == NULL)
+ {
+ ErrorF ("winInitMultiWindowWM - Failed opening the display. "
+ "Exiting.\n");
+ pthread_exit (NULL);
+ }
+
+ ErrorF ("winInitMultiWindowWM - XOpenDisplay () returned and "
+ "successfully opened the display.\n");
+
+
+ /* Create some atoms */
+ pWMInfo->atmWmProtos = XInternAtom (pWMInfo->pDisplay,
+ "WM_PROTOCOLS",
+ False);
+ pWMInfo->atmWmDelete = XInternAtom (pWMInfo->pDisplay,
+ "WM_DELETE_WINDOW",
+ False);
+#ifdef XWIN_MULTIWINDOWEXTWM
+ pWMInfo->atmPrivMap = XInternAtom (pWMInfo->pDisplay,
+ WINDOWSWM_NATIVE_HWND,
+ False);
+#endif
+
+
+ if (1) {
+ Cursor cursor = XCreateFontCursor (pWMInfo->pDisplay, XC_left_ptr);
+ if (cursor)
+ {
+ XDefineCursor (pWMInfo->pDisplay, DefaultRootWindow(pWMInfo->pDisplay), cursor);
+ XFreeCursor (pWMInfo->pDisplay, cursor);
+ }
+ }
+}
+
+
+/*
+ * winSendMessageToWM - Send a message from the X thread to the WM thread
+ */
+
+void
+winSendMessageToWM (void *pWMInfo, winWMMessagePtr pMsg)
+{
+ WMMsgNodePtr pNode;
+
+#if CYGMULTIWINDOW_DEBUG
+ ErrorF ("winSendMessageToWM ()\n");
+#endif
+
+ pNode = (WMMsgNodePtr)malloc(sizeof(WMMsgNodeRec));
+ if (pNode != NULL)
+ {
+ memcpy (&pNode->msg, pMsg, sizeof(winWMMessageRec));
+ PushMessage (&((WMInfoPtr)pWMInfo)->wmMsgQueue, pNode);
+ }
+}
+
+
+/*
+ * Window manager error handler
+ */
+
+static int
+winMultiWindowWMErrorHandler (Display *pDisplay, XErrorEvent *pErr)
+{
+ char pszErrorMsg[100];
+
+ if (pErr->request_code == X_ChangeWindowAttributes
+ && pErr->error_code == BadAccess)
+ {
+ ErrorF ("winMultiWindowWMErrorHandler - ChangeWindowAttributes "
+ "BadAccess.\n");
+ return 0;
+ }
+
+ XGetErrorText (pDisplay,
+ pErr->error_code,
+ pszErrorMsg,
+ sizeof (pszErrorMsg));
+ ErrorF ("winMultiWindowWMErrorHandler - ERROR: %s\n", pszErrorMsg);
+
+ return 0;
+}
+
+
+/*
+ * Window manager IO error handler
+ */
+
+static int
+winMultiWindowWMIOErrorHandler (Display *pDisplay)
+{
+ ErrorF ("\nwinMultiWindowWMIOErrorHandler!\n\n");
+
+ if (g_shutdown)
+ pthread_exit(NULL);
+
+ /* Restart at the main entry point */
+ longjmp (g_jmpWMEntry, WIN_JMP_ERROR_IO);
+
+ return 0;
+}
+
+
+/*
+ * X message procedure error handler
+ */
+
+static int
+winMultiWindowXMsgProcErrorHandler (Display *pDisplay, XErrorEvent *pErr)
+{
+ char pszErrorMsg[100];
+
+ XGetErrorText (pDisplay,
+ pErr->error_code,
+ pszErrorMsg,
+ sizeof (pszErrorMsg));
+ ErrorF ("winMultiWindowXMsgProcErrorHandler - ERROR: %s\n", pszErrorMsg);
+
+ return 0;
+}
+
+
+/*
+ * X message procedure IO error handler
+ */
+
+static int
+winMultiWindowXMsgProcIOErrorHandler (Display *pDisplay)
+{
+ ErrorF ("\nwinMultiWindowXMsgProcIOErrorHandler!\n\n");
+
+ /* Restart at the main entry point */
+ longjmp (g_jmpXMsgProcEntry, WIN_JMP_ERROR_IO);
+
+ return 0;
+}
+
+
+/*
+ * Catch RedirectError to detect other window manager running
+ */
+
+static int
+winRedirectErrorHandler (Display *pDisplay, XErrorEvent *pErr)
+{
+ redirectError = TRUE;
+ return 0;
+}
+
+
+/*
+ * Check if another window manager is running
+ */
+
+static Bool
+CheckAnotherWindowManager (Display *pDisplay, DWORD dwScreen)
+{
+ redirectError = FALSE;
+ XSetErrorHandler (winRedirectErrorHandler);
+ XSelectInput(pDisplay, RootWindow (pDisplay, dwScreen),
+ // SubstructureNotifyMask | ButtonPressMask
+ ColormapChangeMask | EnterWindowMask | PropertyChangeMask |
+ SubstructureRedirectMask | KeyPressMask |
+ ButtonPressMask | ButtonReleaseMask);
+ XSync (pDisplay, 0);
+ XSetErrorHandler (winMultiWindowXMsgProcErrorHandler);
+ XSelectInput(pDisplay, RootWindow (pDisplay, dwScreen),
+ SubstructureNotifyMask);
+ XSync (pDisplay, 0);
+ if (redirectError)
+ {
+ //ErrorF ("CheckAnotherWindowManager() - another window manager is running. Exiting.\n");
+ return TRUE;
+ }
+ else
+ {
+ return FALSE;
+ }
+}
+
+/*
+ * Notify the MWM thread we're exiting and not to reconnect
+ */
+
+void
+winDeinitMultiWindowWM ()
+{
+ ErrorF ("winDeinitMultiWindowWM - Noting shutdown in progress\n");
+ g_shutdown = TRUE;
+}