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xenocara/xserver/hw/xwin/winmultiwindowwm.c
matthieu 4f58590a42 Update to xserver 1.16.1. 
Tested by naddy@, jsg@ & kettenis@
2014-09-27 17:52:59 +00:00

1973 lines
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/*
*Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
*Copyright (C) Colin Harrison 2005-2009
*
*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
* Colin Harrison
*/
/* 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>
#include <X11/Xwindows.h>
/* Local headers */
#include "winwindow.h"
#include "winprefs.h"
#include "window.h"
#include "pixmapstr.h"
#include "windowstr.h"
#include "winglobals.h"
#ifdef XWIN_MULTIWINDOWEXTWM
#include <X11/extensions/windowswmstr.h>
#else
/* We need the native HWND atom for intWM, so for consistency use the
same name as extWM would if we were building with enabled... */
#define WINDOWSWM_NATIVE_HWND "_WINDOWSWM_NATIVE_HWND"
#endif
#ifndef HOST_NAME_MAX
#define HOST_NAME_MAX 255
#endif
extern void winDebug(const char *format, ...);
extern void winReshapeMultiWindow(WindowPtr pWin);
extern void winUpdateRgnMultiWindow(WindowPtr pWin);
#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 atmWmTakeFocus;
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;
/*
* 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 **ppWindowName);
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,
Bool fAllowOtherWM);
static void
winApplyHints(Display * pDisplay, Window iWindow, HWND hWnd, HWND * zstyle);
void
winUpdateWindowPosition(HWND hWnd, HWND * zstyle);
/*
* Local globals
*/
static jmp_buf g_jmpWMEntry;
static XIOErrorHandler g_winMultiWindowWMOldIOErrorHandler;
static pthread_t g_winMultiWindowWMThread;
static jmp_buf g_jmpXMsgProcEntry;
static XIOErrorHandler g_winMultiWindowXMsgProcOldIOErrorHandler;
static pthread_t g_winMultiWindowXMsgProcThread;
static Bool g_shutdown = FALSE;
static Bool redirectError = FALSE;
static Bool g_fAnotherWMRunning = 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_MAP2:
ErrorF("\tWM_WM_MAP2\n");
break;
case WM_WM_MAP3:
ErrorF("\tWM_WM_MAP3\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
winDebug("InitQueue - Queue Size %d %d\n", pQueue->nQueueSize,
QueueSize(pQueue));
#endif
winDebug("InitQueue - Calling pthread_mutex_init\n");
/* Create synchronization objects */
pthread_mutex_init(&pQueue->pmMutex, NULL);
winDebug("InitQueue - pthread_mutex_init returned\n");
winDebug("InitQueue - Calling pthread_cond_init\n");
pthread_cond_init(&pQueue->pcNotEmpty, NULL);
winDebug("InitQueue - pthread_cond_init returned\n");
return TRUE;
}
static
char *
Xutf8TextPropertyToString(Display * pDisplay, XTextProperty * xtp)
{
int nNum;
char **ppList;
char *pszReturnData;
if (Xutf8TextPropertyToTextList(pDisplay, xtp, &ppList, &nNum) >= Success &&
nNum > 0 && *ppList) {
int i;
int iLen = 0;
for (i = 0; i < nNum; i++)
iLen += strlen(ppList[i]);
pszReturnData = malloc(iLen + 1);
pszReturnData[0] = '\0';
for (i = 0; i < nNum; i++)
strcat(pszReturnData, ppList[i]);
if (ppList)
XFreeStringList(ppList);
}
else {
pszReturnData = malloc(1);
pszReturnData[0] = '\0';
}
return pszReturnData;
}
/*
* GetWindowName - Retrieve the title of an X Window
*/
static void
GetWindowName(Display * pDisplay, Window iWin, char **ppWindowName)
{
int nResult;
XTextProperty xtpWindowName;
XTextProperty xtpClientMachine;
char *pszWindowName;
char *pszClientMachine;
char hostname[HOST_NAME_MAX + 1];
#if CYGMULTIWINDOW_DEBUG
ErrorF("GetWindowName\n");
#endif
/* Intialize ppWindowName to NULL */
*ppWindowName = NULL;
/* Try to get window name */
nResult = XGetWMName(pDisplay, iWin, &xtpWindowName);
if (!nResult || !xtpWindowName.value || !xtpWindowName.nitems) {
#if CYGMULTIWINDOW_DEBUG
ErrorF("GetWindowName - XGetWMName failed. No name.\n");
#endif
return;
}
pszWindowName = Xutf8TextPropertyToString(pDisplay, &xtpWindowName);
XFree(xtpWindowName.value);
if (g_fHostInTitle) {
/* Try to get client machine name */
nResult = XGetWMClientMachine(pDisplay, iWin, &xtpClientMachine);
if (nResult && xtpClientMachine.value && xtpClientMachine.nitems) {
pszClientMachine =
Xutf8TextPropertyToString(pDisplay, &xtpClientMachine);
XFree(xtpClientMachine.value);
/*
If we have a client machine name
and it's not the local host name
and it's not already in the window title...
*/
if (strlen(pszClientMachine) &&
!gethostname(hostname, HOST_NAME_MAX + 1) &&
strcmp(hostname, pszClientMachine) &&
(strstr(pszWindowName, pszClientMachine) == 0)) {
/* ... add '@<clientmachine>' to end of window name */
*ppWindowName =
malloc(strlen(pszWindowName) +
strlen(pszClientMachine) + 2);
strcpy(*ppWindowName, pszWindowName);
strcat(*ppWindowName, "@");
strcat(*ppWindowName, pszClientMachine);
free(pszWindowName);
free(pszClientMachine);
return;
}
}
}
/* otherwise just return the window name */
*ppWindowName = pszWindowName;
}
/*
* Does the client support the specified WM_PROTOCOLS protocol?
*/
static Bool
IsWmProtocolAvailable(Display * pDisplay, Window iWindow, Atom atmProtocol)
{
int i, n, found = 0;
Atom *protocols;
if (XGetWMProtocols(pDisplay, iWindow, &protocols, &n)) {
for (i = 0; i < n; ++i)
if (protocols[i] == atmProtocol)
++found;
XFree(protocols);
}
return found > 0;
}
/*
* 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);
}
/*
* See if we can get the stored HWND for this window...
*/
static HWND
getHwnd(WMInfoPtr pWMInfo, Window iWindow)
{
Atom atmType;
int fmtRet;
unsigned long items, remain;
HWND *retHwnd, hWnd = NULL;
if (XGetWindowProperty(pWMInfo->pDisplay,
iWindow,
pWMInfo->atmPrivMap,
0,
sizeof(HWND)/4,
False,
XA_INTEGER,
&atmType,
&fmtRet,
&items,
&remain, (unsigned char **) &retHwnd) == Success) {
if (retHwnd) {
hWnd = *retHwnd;
XFree(retHwnd);
}
}
/* Some sanity checks */
if (!hWnd)
return NULL;
if (!IsWindow(hWnd))
return NULL;
return hWnd;
}
/*
* Updates the name of a HWND according to its X WM_NAME property
*/
static void
UpdateName(WMInfoPtr pWMInfo, Window iWindow)
{
HWND hWnd;
XWindowAttributes attr;
hWnd = getHwnd(pWMInfo, iWindow);
if (!hWnd)
return;
/* If window isn't override-redirect */
XGetWindowAttributes(pWMInfo->pDisplay, iWindow, &attr);
if (!attr.override_redirect) {
char *pszWindowName;
/* Get the X windows window name */
GetWindowName(pWMInfo->pDisplay, iWindow, &pszWindowName);
if (pszWindowName) {
/* Convert from UTF-8 to wide char */
int iLen =
MultiByteToWideChar(CP_UTF8, 0, pszWindowName, -1, NULL, 0);
wchar_t *pwszWideWindowName =
malloc(sizeof(wchar_t)*(iLen + 1));
MultiByteToWideChar(CP_UTF8, 0, pszWindowName, -1,
pwszWideWindowName, iLen);
/* Set the Windows window name */
SetWindowTextW(hWnd, pwszWideWindowName);
free(pwszWideWindowName);
free(pszWindowName);
}
}
}
/*
* Updates the icon of a HWND according to its X icon properties
*/
static void
UpdateIcon(WMInfoPtr pWMInfo, Window iWindow)
{
HWND hWnd;
HICON hIconNew = NULL;
XWindowAttributes attr;
hWnd = getHwnd(pWMInfo, iWindow);
if (!hWnd)
return;
/* If window isn't override-redirect */
XGetWindowAttributes(pWMInfo->pDisplay, iWindow, &attr);
if (!attr.override_redirect) {
XClassHint class_hint = { 0, 0 };
char *window_name = 0;
if (XGetClassHint(pWMInfo->pDisplay, iWindow, &class_hint)) {
XFetchName(pWMInfo->pDisplay, iWindow, &window_name);
hIconNew =
(HICON) winOverrideIcon(class_hint.res_name,
class_hint.res_class, window_name);
if (class_hint.res_name)
XFree(class_hint.res_name);
if (class_hint.res_class)
XFree(class_hint.res_class);
if (window_name)
XFree(window_name);
}
}
winUpdateIcon(hWnd, pWMInfo->pDisplay, iWindow, hIconNew);
}
/*
* Updates the style of a HWND according to its X style properties
*/
static void
UpdateStyle(WMInfoPtr pWMInfo, Window iWindow)
{
HWND hWnd;
HWND zstyle = HWND_NOTOPMOST;
UINT flags;
hWnd = getHwnd(pWMInfo, iWindow);
if (!hWnd)
return;
/* Determine the Window style, which determines borders and clipping region... */
winApplyHints(pWMInfo->pDisplay, iWindow, hWnd, &zstyle);
winUpdateWindowPosition(hWnd, &zstyle);
/* Apply the updated window style, without changing it's show or activation state */
flags = SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE;
if (zstyle == HWND_NOTOPMOST)
flags |= SWP_NOZORDER | SWP_NOOWNERZORDER;
SetWindowPos(hWnd, NULL, 0, 0, 0, 0, flags);
/*
Use the WS_EX_TOOLWINDOW style to remove window from Alt-Tab window switcher
According to MSDN, this is supposed to remove the window from the taskbar as well,
if we SW_HIDE before changing the style followed by SW_SHOW afterwards.
But that doesn't seem to work reliably, and causes the window to flicker, so use
the iTaskbarList interface to tell the taskbar to show or hide this window.
*/
winShowWindowOnTaskbar(hWnd,
(GetWindowLongPtr(hWnd, GWL_EXSTYLE) &
WS_EX_APPWINDOW) ? TRUE : FALSE);
}
#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)
{
HWND hWnd;
DWORD myWinProcID, winProcID;
Window xWindow;
WINDOWPLACEMENT wndPlace;
hWnd = getHwnd(pWMInfo, iWindow);
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 explicitly break out */
for (;;) {
WMMsgNodePtr pNode;
if (g_fAnotherWMRunning) { /* 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,
32,
PropModeReplace,
(unsigned char *) &(pNode->msg.hwndWindow), sizeof(HWND)/4);
UpdateName(pWMInfo, pNode->msg.iWindow);
UpdateIcon(pWMInfo, pNode->msg.iWindow);
break;
case WM_WM_MAP2:
#if CYGMULTIWINDOW_DEBUG
ErrorF("\tWM_WM_MAP2\n");
#endif
XChangeProperty(pWMInfo->pDisplay, pNode->msg.iWindow, pWMInfo->atmPrivMap, XA_INTEGER,
32,
PropModeReplace,
(unsigned char *) &(pNode->msg.hwndWindow), sizeof(HWND)/4);
break;
case WM_WM_MAP3:
#if CYGMULTIWINDOW_DEBUG
ErrorF("\tWM_WM_MAP3\n");
#endif
/* Put a note as to the HWND associated with this Window */
XChangeProperty(pWMInfo->pDisplay, pNode->msg.iWindow, pWMInfo->atmPrivMap, XA_INTEGER,
32,
PropModeReplace,
(unsigned char *) &(pNode->msg.hwndWindow), sizeof(HWND)/4);
UpdateName(pWMInfo, pNode->msg.iWindow);
UpdateIcon(pWMInfo, pNode->msg.iWindow);
UpdateStyle(pWMInfo, pNode->msg.iWindow);
/* Reshape */
{
WindowPtr pWin =
GetProp(pNode->msg.hwndWindow, WIN_WINDOW_PROP);
if (pWin) {
winReshapeMultiWindow(pWin);
winUpdateRgnMultiWindow(pWin);
}
}
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
{
/* --- */
if (IsWmProtocolAvailable(pWMInfo->pDisplay,
pNode->msg.iWindow,
pWMInfo->atmWmDelete))
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 */
/*
ICCCM 4.1.7 is pretty opaque, but it appears that the rules are
actually quite simple:
-- the WM_HINTS input field determines whether the WM should call
XSetInputFocus()
-- independently, the WM_TAKE_FOCUS protocol determines whether
the WM should send a WM_TAKE_FOCUS ClientMessage.
*/
{
Bool neverFocus = FALSE;
XWMHints *hints = XGetWMHints(pWMInfo->pDisplay, pNode->msg.iWindow);
if (hints) {
if (hints->flags & InputHint)
neverFocus = !hints->input;
XFree(hints);
}
if (!neverFocus)
XSetInputFocus(pWMInfo->pDisplay,
pNode->msg.iWindow,
RevertToPointerRoot, CurrentTime);
if (IsWmProtocolAvailable(pWMInfo->pDisplay,
pNode->msg.iWindow,
pWMInfo->atmWmTakeFocus))
SendXMessage(pWMInfo->pDisplay,
pNode->msg.iWindow,
pWMInfo->atmWmProtos, pWMInfo->atmWmTakeFocus);
}
break;
case WM_WM_NAME_EVENT:
UpdateName(pWMInfo, pNode->msg.iWindow);
break;
case WM_WM_ICON_EVENT:
UpdateIcon(pWMInfo, pNode->msg.iWindow);
break;
case WM_WM_HINTS_EVENT:
{
XWindowAttributes attr;
/* Don't do anything if this is an override-redirect window */
XGetWindowAttributes (pWMInfo->pDisplay, pNode->msg.iWindow, &attr);
if (attr.override_redirect)
break;
UpdateStyle(pWMInfo, 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
return NULL;
}
/*
* 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;
Atom atmNetWmIcon;
Atom atmWindowState, atmMotifWmHints, atmWindowType, atmNormalHints;
int iReturn;
XIconSize *xis;
winDebug("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 - Warning: locale not supported by X\n");
}
/* Release the server started mutex */
pthread_mutex_unlock(pProcArg->ppmServerStarted);
ErrorF("winMultiWindowXMsgProc - pthread_mutex_unlock () returned.\n");
/* Install our error handler */
XSetErrorHandler(winMultiWindowXMsgProcErrorHandler);
g_winMultiWindowXMsgProcThread = pthread_self();
g_winMultiWindowXMsgProcOldIOErrorHandler =
XSetIOErrorHandler(winMultiWindowXMsgProcIOErrorHandler);
/* 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);
}
/* 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);
/* Use our generated cookie for authentication */
winSetAuthorization();
/* 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", 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 */
g_fAnotherWMRunning =
CheckAnotherWindowManager(pProcArg->pDisplay, pProcArg->dwScreen,
pProcArg->pWMInfo->fAllowOtherWM);
if (g_fAnotherWMRunning && !pProcArg->pWMInfo->fAllowOtherWM) {
ErrorF("winMultiWindowXMsgProc - "
"another window manager is running. Exiting.\n");
pthread_exit(NULL);
}
/* 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);
atmNetWmIcon = XInternAtom(pProcArg->pDisplay, "_NET_WM_ICON", False);
atmWindowState = XInternAtom(pProcArg->pDisplay, "_NET_WM_STATE", False);
atmMotifWmHints = XInternAtom(pProcArg->pDisplay, "_MOTIF_WM_HINTS", False);
atmWindowType = XInternAtom(pProcArg->pDisplay, "_NET_WM_WINDOW_TYPE", False);
atmNormalHints = XInternAtom(pProcArg->pDisplay, "WM_NORMAL_HINTS", False);
/*
iiimxcf had a bug until 2009-04-27, assuming that the
WM_STATE atom exists, causing clients to fail with
a BadAtom X error if it doesn't.
Since this is on in the default Solaris 10 install,
workaround this by making sure it does exist...
*/
XInternAtom(pProcArg->pDisplay, "WM_STATE", 0);
/* 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, TRUE)) {
if (!g_fAnotherWMRunning) {
g_fAnotherWMRunning = TRUE;
SendMessage(pProcArg->hwndScreen, WM_UNMANAGE, 0, 0);
}
}
else {
if (g_fAnotherWMRunning) {
g_fAnotherWMRunning = FALSE;
SendMessage(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 == MapNotify) {
/* Fake a reparentNotify event as SWT/Motif expects a
Window Manager to reparent a top-level window when
it is mapped and waits until they do.
We don't actually need to reparent, as the frame is
a native window, not an X window
We do this on MapNotify, not MapRequest like a real
Window Manager would, so we don't have do get involved
in actually mapping the window via it's (non-existent)
parent...
See sourceware bugzilla #9848
*/
XWindowAttributes attr;
Window root;
Window parent;
Window *children;
unsigned int nchildren;
if (XGetWindowAttributes(event.xmap.display,
event.xmap.window,
&attr) &&
XQueryTree(event.xmap.display,
event.xmap.window,
&root, &parent, &children, &nchildren)) {
if (children)
XFree(children);
/*
It's a top-level window if the parent window is a root window
Only non-override_redirect windows can get reparented
*/
if ((attr.root == parent) && !event.xmap.override_redirect) {
XEvent event_send;
event_send.type = ReparentNotify;
event_send.xreparent.event = event.xmap.window;
event_send.xreparent.window = event.xmap.window;
event_send.xreparent.parent = parent;
event_send.xreparent.x = attr.x;
event_send.xreparent.y = attr.y;
XSendEvent(event.xmap.display,
event.xmap.window,
True, StructureNotifyMask, &event_send);
}
}
}
else if (event.type == ConfigureNotify) {
if (!event.xconfigure.send_event) {
/*
Java applications using AWT on JRE 1.6.0 break with non-reparenting WMs AWT
doesn't explicitly know about (See sun bug #6434227)
XDecoratedPeer.handleConfigureNotifyEvent() only processes non-synthetic
ConfigureNotify events to update window location if it's identified the
WM as a non-reparenting WM it knows about (compiz or lookingglass)
Rather than tell all sorts of lies to get XWM to recognize us as one of
those, simply send a synthetic ConfigureNotify for every non-synthetic one
*/
XEvent event_send = event;
event_send.xconfigure.send_event = TRUE;
event_send.xconfigure.event = event.xconfigure.window;
XSendEvent(event.xconfigure.display,
event.xconfigure.window,
True, StructureNotifyMask, &event_send);
}
}
else if (event.type == PropertyNotify) {
if (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 {
/*
Several properties are considered for WM hints, check if this property change affects any of them...
(this list needs to be kept in sync with winApplyHints())
*/
if ((event.xproperty.atom == atmWmHints) ||
(event.xproperty.atom == atmWindowState) ||
(event.xproperty.atom == atmMotifWmHints) ||
(event.xproperty.atom == atmWindowType) ||
(event.xproperty.atom == atmNormalHints)) {
memset(&msg, 0, sizeof(msg));
msg.msg = WM_WM_HINTS_EVENT;
msg.iWindow = event.xproperty.window;
/* Other fields ignored */
winSendMessageToWM(pProcArg->pWMInfo, &msg);
}
/* Not an else as WM_HINTS affects both style and icon */
if ((event.xproperty.atom == atmWmHints) ||
(event.xproperty.atom == atmNetWmIcon)) {
memset(&msg, 0, sizeof(msg));
msg.msg = WM_WM_ICON_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);
return 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 = malloc(sizeof(WMProcArgRec));
WMInfoPtr pWMInfo = malloc(sizeof(WMInfoRec));
XMsgProcArgPtr pXMsgArg = malloc(sizeof(XMsgProcArgRec));
/* Bail if the input parameters are bad */
if (pArg == NULL || pWMInfo == NULL || pXMsgArg == NULL) {
ErrorF("winInitWM - malloc failed.\n");
free(pArg);
free(pWMInfo);
free(pXMsgArg);
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;
winDebug("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 - Warning: Locale not supported by X.\n");
}
/* Release the server started mutex */
pthread_mutex_unlock(pProcArg->ppmServerStarted);
ErrorF("winInitMultiWindowWM - pthread_mutex_unlock () returned.\n");
/* Install our error handler */
XSetErrorHandler(winMultiWindowWMErrorHandler);
g_winMultiWindowWMThread = pthread_self();
g_winMultiWindowWMOldIOErrorHandler =
XSetIOErrorHandler(winMultiWindowWMIOErrorHandler);
/* 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);
}
/* 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);
/* Use our generated cookie for authentication */
winSetAuthorization();
/* 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", 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);
pWMInfo->atmWmTakeFocus = XInternAtom(pWMInfo->pDisplay,
"WM_TAKE_FOCUS", False);
pWMInfo->atmPrivMap = XInternAtom(pWMInfo->pDisplay,
WINDOWSWM_NATIVE_HWND, False);
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 = 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("winMultiWindowWMIOErrorHandler!\n");
if (pthread_equal(pthread_self(), g_winMultiWindowWMThread)) {
if (g_shutdown)
pthread_exit(NULL);
/* Restart at the main entry point */
longjmp(g_jmpWMEntry, WIN_JMP_ERROR_IO);
}
if (g_winMultiWindowWMOldIOErrorHandler)
g_winMultiWindowWMOldIOErrorHandler(pDisplay);
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));
#if CYGMULTIWINDOW_DEBUG
ErrorF("winMultiWindowXMsgProcErrorHandler - ERROR: %s\n", pszErrorMsg);
#endif
return 0;
}
/*
* X message procedure IO error handler
*/
static int
winMultiWindowXMsgProcIOErrorHandler(Display * pDisplay)
{
ErrorF("winMultiWindowXMsgProcIOErrorHandler!\n");
if (pthread_equal(pthread_self(), g_winMultiWindowXMsgProcThread)) {
/* Restart at the main entry point */
longjmp(g_jmpXMsgProcEntry, WIN_JMP_ERROR_IO);
}
if (g_winMultiWindowXMsgProcOldIOErrorHandler)
g_winMultiWindowXMsgProcOldIOErrorHandler(pDisplay);
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,
Bool fAllowOtherWM)
{
/*
Try to select the events which only one client at a time is allowed to select.
If this causes an error, another window manager is already running...
*/
redirectError = FALSE;
XSetErrorHandler(winRedirectErrorHandler);
XSelectInput(pDisplay, RootWindow(pDisplay, dwScreen),
ResizeRedirectMask | SubstructureRedirectMask |
ButtonPressMask);
XSync(pDisplay, 0);
XSetErrorHandler(winMultiWindowXMsgProcErrorHandler);
/*
Side effect: select the events we are actually interested in...
If other WMs are not allowed, also select one of the events which only one client
at a time is allowed to select, so other window managers won't start...
*/
XSelectInput(pDisplay, RootWindow(pDisplay, dwScreen),
SubstructureNotifyMask | (!fAllowOtherWM ? ButtonPressMask :
0));
XSync(pDisplay, 0);
return redirectError;
}
/*
* Notify the MWM thread we're exiting and not to reconnect
*/
void
winDeinitMultiWindowWM(void)
{
ErrorF("winDeinitMultiWindowWM - Noting shutdown in progress\n");
g_shutdown = TRUE;
}
/* Windows window styles */
#define HINT_NOFRAME (1L<<0)
#define HINT_BORDER (1L<<1)
#define HINT_SIZEBOX (1L<<2)
#define HINT_CAPTION (1L<<3)
#define HINT_NOMAXIMIZE (1L<<4)
#define HINT_NOMINIMIZE (1L<<5)
#define HINT_NOSYSMENU (1L<<6)
#define HINT_SKIPTASKBAR (1L<<7)
/* These two are used on their own */
#define HINT_MAX (1L<<0)
#define HINT_MIN (1L<<1)
static void
winApplyHints(Display * pDisplay, Window iWindow, HWND hWnd, HWND * zstyle)
{
static Atom windowState, motif_wm_hints, windowType;
static Atom hiddenState, fullscreenState, belowState, aboveState,
skiptaskbarState;
static Atom dockWindow;
static int generation;
Atom type, *pAtom = NULL;
int format;
unsigned long hint = 0, maxmin = 0, nitems = 0, left = 0;
unsigned long style, exStyle;
MwmHints *mwm_hint = NULL;
if (!hWnd)
return;
if (!IsWindow(hWnd))
return;
if (generation != serverGeneration) {
generation = serverGeneration;
windowState = XInternAtom(pDisplay, "_NET_WM_STATE", False);
motif_wm_hints = XInternAtom(pDisplay, "_MOTIF_WM_HINTS", False);
windowType = XInternAtom(pDisplay, "_NET_WM_WINDOW_TYPE", False);
hiddenState = XInternAtom(pDisplay, "_NET_WM_STATE_HIDDEN", False);
fullscreenState =
XInternAtom(pDisplay, "_NET_WM_STATE_FULLSCREEN", False);
belowState = XInternAtom(pDisplay, "_NET_WM_STATE_BELOW", False);
aboveState = XInternAtom(pDisplay, "_NET_WM_STATE_ABOVE", False);
dockWindow = XInternAtom(pDisplay, "_NET_WM_WINDOW_TYPE_DOCK", False);
skiptaskbarState =
XInternAtom(pDisplay, "_NET_WM_STATE_SKIP_TASKBAR", False);
}
if (XGetWindowProperty(pDisplay, iWindow, windowState, 0L,
MAXINT, False, XA_ATOM, &type, &format,
&nitems, &left,
(unsigned char **) &pAtom) == Success) {
if (pAtom ) {
unsigned long i;
for (i = 0; i < nitems; i++) {
if (pAtom[i] == skiptaskbarState)
hint |= HINT_SKIPTASKBAR;
if (pAtom[i] == hiddenState)
maxmin |= HINT_MIN;
else if (pAtom[i] == fullscreenState)
maxmin |= HINT_MAX;
if (pAtom[i] == belowState)
*zstyle = HWND_BOTTOM;
else if (pAtom[i] == aboveState)
*zstyle = HWND_TOPMOST;
}
XFree(pAtom);
}
}
nitems = left = 0;
if (XGetWindowProperty(pDisplay, iWindow, motif_wm_hints, 0L,
PropMwmHintsElements, False, motif_wm_hints, &type,
&format, &nitems, &left,
(unsigned char **) &mwm_hint) == Success) {
if (mwm_hint && nitems == PropMwmHintsElements &&
(mwm_hint->flags & MwmHintsDecorations)) {
if (!mwm_hint->decorations)
hint |= HINT_NOFRAME;
else if (!(mwm_hint->decorations & MwmDecorAll)) {
if (mwm_hint->decorations & MwmDecorBorder)
hint |= HINT_BORDER;
if (mwm_hint->decorations & MwmDecorHandle)
hint |= HINT_SIZEBOX;
if (mwm_hint->decorations & MwmDecorTitle)
hint |= HINT_CAPTION;
if (!(mwm_hint->decorations & MwmDecorMenu))
hint |= HINT_NOSYSMENU;
if (!(mwm_hint->decorations & MwmDecorMinimize))
hint |= HINT_NOMINIMIZE;
if (!(mwm_hint->decorations & MwmDecorMaximize))
hint |= HINT_NOMAXIMIZE;
}
else {
/*
MwmDecorAll means all decorations *except* those specified by other flag
bits that are set. Not yet implemented.
*/
}
}
if (mwm_hint)
XFree(mwm_hint);
}
nitems = left = 0;
pAtom = NULL;
if (XGetWindowProperty(pDisplay, iWindow, windowType, 0L,
1L, False, XA_ATOM, &type, &format,
&nitems, &left,
(unsigned char **) &pAtom) == Success) {
if (pAtom && nitems == 1) {
if (*pAtom == dockWindow) {
hint = (hint & ~HINT_NOFRAME) | HINT_SIZEBOX; /* Xming puts a sizebox on dock windows */
*zstyle = HWND_TOPMOST;
}
}
if (pAtom)
XFree(pAtom);
}
{
XSizeHints *normal_hint = XAllocSizeHints();
long supplied;
if (normal_hint &&
(XGetWMNormalHints(pDisplay, iWindow, normal_hint, &supplied) ==
Success)) {
if (normal_hint->flags & PMaxSize) {
/* Not maximizable if a maximum size is specified */
hint |= HINT_NOMAXIMIZE;
if (normal_hint->flags & PMinSize) {
/*
If both minimum size and maximum size are specified and are the same,
don't bother with a resizing frame
*/
if ((normal_hint->min_width == normal_hint->max_width)
&& (normal_hint->min_height == normal_hint->max_height))
hint = (hint & ~HINT_SIZEBOX);
}
}
}
XFree(normal_hint);
}
/*
Override hint settings from above with settings from config file and set
application id for grouping.
*/
{
XClassHint class_hint = { 0, 0 };
char *window_name = 0;
char *application_id = 0;
if (XGetClassHint(pDisplay, iWindow, &class_hint)) {
XFetchName(pDisplay, iWindow, &window_name);
style =
winOverrideStyle(class_hint.res_name, class_hint.res_class,
window_name);
#define APPLICATION_ID_FORMAT "%s.xwin.%s"
#define APPLICATION_ID_UNKNOWN "unknown"
if (class_hint.res_class) {
asprintf(&application_id, APPLICATION_ID_FORMAT, XVENDORNAME,
class_hint.res_class);
}
else {
asprintf(&application_id, APPLICATION_ID_FORMAT, XVENDORNAME,
APPLICATION_ID_UNKNOWN);
}
winSetAppUserModelID(hWnd, application_id);
if (class_hint.res_name)
XFree(class_hint.res_name);
if (class_hint.res_class)
XFree(class_hint.res_class);
if (application_id)
free(application_id);
if (window_name)
XFree(window_name);
}
else {
style = STYLE_NONE;
}
}
if (style & STYLE_TOPMOST)
*zstyle = HWND_TOPMOST;
else if (style & STYLE_MAXIMIZE)
maxmin = (hint & ~HINT_MIN) | HINT_MAX;
else if (style & STYLE_MINIMIZE)
maxmin = (hint & ~HINT_MAX) | HINT_MIN;
else if (style & STYLE_BOTTOM)
*zstyle = HWND_BOTTOM;
if (maxmin & HINT_MAX)
SendMessage(hWnd, WM_SYSCOMMAND, SC_MAXIMIZE, 0);
else if (maxmin & HINT_MIN)
SendMessage(hWnd, WM_SYSCOMMAND, SC_MINIMIZE, 0);
if (style & STYLE_NOTITLE)
hint =
(hint & ~HINT_NOFRAME & ~HINT_BORDER & ~HINT_CAPTION) |
HINT_SIZEBOX;
else if (style & STYLE_OUTLINE)
hint =
(hint & ~HINT_NOFRAME & ~HINT_SIZEBOX & ~HINT_CAPTION) |
HINT_BORDER;
else if (style & STYLE_NOFRAME)
hint =
(hint & ~HINT_BORDER & ~HINT_CAPTION & ~HINT_SIZEBOX) |
HINT_NOFRAME;
/* Now apply styles to window */
style = GetWindowLongPtr(hWnd, GWL_STYLE);
if (!style)
return; /* GetWindowLongPointer returns 0 on failure, we hope this isn't a valid style */
style &= ~WS_CAPTION & ~WS_SIZEBOX; /* Just in case */
if (!(hint & ~HINT_SKIPTASKBAR)) /* No hints, default */
style = style | WS_CAPTION | WS_SIZEBOX;
else if (hint & HINT_NOFRAME) /* No frame, no decorations */
style = style & ~WS_CAPTION & ~WS_SIZEBOX;
else
style = style | ((hint & HINT_BORDER) ? WS_BORDER : 0) |
((hint & HINT_SIZEBOX) ? WS_SIZEBOX : 0) |
((hint & HINT_CAPTION) ? WS_CAPTION : 0);
if (hint & HINT_NOMAXIMIZE)
style = style & ~WS_MAXIMIZEBOX;
if (hint & HINT_NOMINIMIZE)
style = style & ~WS_MINIMIZEBOX;
if (hint & HINT_NOSYSMENU)
style = style & ~WS_SYSMENU;
if (hint & HINT_SKIPTASKBAR)
style = style & ~WS_MINIMIZEBOX; /* window will become lost if minimized */
SetWindowLongPtr(hWnd, GWL_STYLE, style);
exStyle = GetWindowLongPtr(hWnd, GWL_EXSTYLE);
if (hint & HINT_SKIPTASKBAR)
exStyle = (exStyle & ~WS_EX_APPWINDOW) | WS_EX_TOOLWINDOW;
else
exStyle = (exStyle & ~WS_EX_TOOLWINDOW) | WS_EX_APPWINDOW;
SetWindowLongPtr(hWnd, GWL_EXSTYLE, exStyle);
winDebug
("winApplyHints: iWindow 0x%08x hints 0x%08x style 0x%08x exstyle 0x%08x\n",
iWindow, hint, style, exStyle);
}
void
winUpdateWindowPosition(HWND hWnd, HWND * zstyle)
{
int iX, iY, iWidth, iHeight;
int iDx, iDy;
RECT rcNew;
WindowPtr pWin = GetProp(hWnd, WIN_WINDOW_PROP);
DrawablePtr pDraw = NULL;
if (!pWin)
return;
pDraw = &pWin->drawable;
if (!pDraw)
return;
/* Get the X and Y location of the X window */
iX = pWin->drawable.x + GetSystemMetrics(SM_XVIRTUALSCREEN);
iY = pWin->drawable.y + GetSystemMetrics(SM_YVIRTUALSCREEN);
/* Get the height and width of the X window */
iWidth = pWin->drawable.width;
iHeight = pWin->drawable.height;
/* Setup a rectangle with the X window position and size */
SetRect(&rcNew, iX, iY, iX + iWidth, iY + iHeight);
winDebug("winUpdateWindowPosition - drawable extent (%d, %d)-(%d, %d)\n",
rcNew.left, rcNew.top, rcNew.right, rcNew.bottom);
AdjustWindowRectEx(&rcNew, GetWindowLongPtr(hWnd, GWL_STYLE), FALSE,
GetWindowLongPtr(hWnd, GWL_EXSTYLE));
/* Don't allow window decoration to disappear off to top-left as a result of this adjustment */
if (rcNew.left < GetSystemMetrics(SM_XVIRTUALSCREEN)) {
iDx = GetSystemMetrics(SM_XVIRTUALSCREEN) - rcNew.left;
rcNew.left += iDx;
rcNew.right += iDx;
}
if (rcNew.top < GetSystemMetrics(SM_YVIRTUALSCREEN)) {
iDy = GetSystemMetrics(SM_YVIRTUALSCREEN) - rcNew.top;
rcNew.top += iDy;
rcNew.bottom += iDy;
}
winDebug("winUpdateWindowPosition - Window extent (%d, %d)-(%d, %d)\n",
rcNew.left, rcNew.top, rcNew.right, rcNew.bottom);
/* Position the Windows window */
SetWindowPos(hWnd, *zstyle, rcNew.left, rcNew.top,
rcNew.right - rcNew.left, rcNew.bottom - rcNew.top, 0);
}
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