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xserver-multidpi/hw/xwin/winmultiwindowwm.c
Daniel Martin d5379b350f Use ARRAY_SIZE all over the tree 
Roundhouse kick replacing the various (sizeof(foo)/sizeof(foo[0])) with
the ARRAY_SIZE macro from dix.h when possible. A semantic patch for
coccinelle has been used first. Additionally, a few macros have been
inlined as they had only one or two users.

Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2017-10-30 13:45:20 -04:00

1943 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 <xcb/xcb.h>
#include <xcb/xcb_icccm.h>
#include <xcb/xcb_ewmh.h>
#include <xcb/xcb_aux.h>
#include <X11/Xwindows.h>
/* Local headers */
#include "X11/Xdefs.h" // for Bool type
#include "winwindow.h"
#include "winprefs.h"
#include "window.h"
#include "pixmapstr.h"
#include "windowstr.h"
#include "winglobals.h"
#include "windisplay.h"
#include "winmultiwindowicons.h"
/* We need the native HWND atom for intWM, so for consistency use the
same name as extWM does */
#define WINDOWSWM_NATIVE_HWND "_WINDOWSWM_NATIVE_HWND"
#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);
extern xcb_auth_info_t *winGetXcbAuthInfo(void);
#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
/*
* 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;
} WMMsgQueueRec, *WMMsgQueuePtr;
typedef struct _WMInfo {
xcb_connection_t *conn;
WMMsgQueueRec wmMsgQueue;
xcb_atom_t atmWmProtos;
xcb_atom_t atmWmDelete;
xcb_atom_t atmWmTakeFocus;
xcb_atom_t atmPrivMap;
xcb_atom_t atmUtf8String;
xcb_atom_t atmNetWmName;
xcb_ewmh_connection_t ewmh;
} WMInfoRec, *WMInfoPtr;
typedef struct _WMProcArgRec {
DWORD dwScreen;
WMInfoPtr pWMInfo;
pthread_mutex_t *ppmServerStarted;
} WMProcArgRec, *WMProcArgPtr;
typedef struct _XMsgProcArgRec {
xcb_connection_t *conn;
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(WMInfoPtr pWMInfo, xcb_window_t iWin, char **ppWindowName);
static void
SendXMessage(xcb_connection_t *conn, xcb_window_t iWin, xcb_atom_t atmType, long nData);
static void
UpdateName(WMInfoPtr pWMInfo, xcb_window_t iWindow);
static void *winMultiWindowWMProc(void *pArg);
static void *winMultiWindowXMsgProc(void *pArg);
static void
winInitMultiWindowWM(WMInfoPtr pWMInfo, WMProcArgPtr pProcArg);
#if 0
static void
PreserveWin32Stack(WMInfoPtr pWMInfo, xcb_window_t iWindow, UINT direction);
#endif
static Bool
CheckAnotherWindowManager(xcb_connection_t *conn, DWORD dwScreen);
static void
winApplyHints(WMInfoPtr pWMInfo, xcb_window_t iWindow, HWND hWnd, HWND * zstyle);
void
winUpdateWindowPosition(HWND hWnd, HWND * zstyle);
/*
* Local globals
*/
static Bool g_shutdown = FALSE;
/*
* Translate msg id to text, for debug purposes
*/
#if CYGMULTIWINDOW_DEBUG
static const char *
MessageName(winWMMessagePtr msg)
{
switch (msg->msg)
{
case WM_WM_MOVE:
return "WM_WM_MOVE";
break;
case WM_WM_SIZE:
return "WM_WM_SIZE";
break;
case WM_WM_RAISE:
return "WM_WM_RAISE";
break;
case WM_WM_LOWER:
return "WM_WM_LOWER";
break;
case WM_WM_UNMAP:
return "WM_WM_UNMAP";
break;
case WM_WM_KILL:
return "WM_WM_KILL";
break;
case WM_WM_ACTIVATE:
return "WM_WM_ACTIVATE";
break;
case WM_WM_NAME_EVENT:
return "WM_WM_NAME_EVENT";
break;
case WM_WM_ICON_EVENT:
return "WM_WM_ICON_EVENT";
break;
case WM_WM_CHANGE_STATE:
return "WM_WM_CHANGE_STATE";
break;
case WM_WM_MAP2:
return "WM_WM_MAP2";
break;
case WM_WM_MAP3:
return "WM_WM_MAP3";
break;
case WM_WM_HINTS_EVENT:
return "WM_WM_HINTS_EVENT";
break;
default:
return "Unknown Message";
break;
}
}
#endif
/*
* 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;
}
/* Release the queue mutex */
pthread_mutex_unlock(&pQueue->pmMutex);
/* Signal that the queue is not empty */
pthread_cond_signal(&pQueue->pcNotEmpty);
}
/*
* 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;
}
/* Release the queue mutex */
pthread_mutex_unlock(&pQueue->pmMutex);
return pNode;
}
#if 0
/*
* HaveMessage -
*/
static Bool
HaveMessage(WMMsgQueuePtr pQueue, UINT msg, xcb_window_t 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;
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(WMInfoPtr pWMInfo, xcb_icccm_get_text_property_reply_t *xtp)
{
char *pszReturnData;
if ((xtp->encoding == XCB_ATOM_STRING) || // Latin1 ISO 8859-1
(xtp->encoding == pWMInfo->atmUtf8String)) { // UTF-8 ISO 10646
pszReturnData = strndup(xtp->name, xtp->name_len);
}
else {
// Converting from COMPOUND_TEXT to UTF-8 properly is complex to
// implement, and not very much use unless you have an old
// application which isn't UTF-8 aware.
ErrorF("Xutf8TextPropertyToString: text encoding %d is not implemented\n", xtp->encoding);
pszReturnData = strdup("");
}
return pszReturnData;
}
/*
* GetWindowName - Retrieve the title of an X Window
*/
static void
GetWindowName(WMInfoPtr pWMInfo, xcb_window_t iWin, char **ppWindowName)
{
xcb_connection_t *conn = pWMInfo->conn;
char *pszWindowName = NULL;
#if CYGMULTIWINDOW_DEBUG
ErrorF("GetWindowName\n");
#endif
/* Try to get window name from _NET_WM_NAME */
{
xcb_get_property_cookie_t cookie;
xcb_get_property_reply_t *reply;
cookie = xcb_get_property(pWMInfo->conn, FALSE, iWin,
pWMInfo->atmNetWmName,
XCB_GET_PROPERTY_TYPE_ANY, 0, INT_MAX);
reply = xcb_get_property_reply(pWMInfo->conn, cookie, NULL);
if (reply && (reply->type != XCB_NONE)) {
pszWindowName = strndup(xcb_get_property_value(reply),
xcb_get_property_value_length(reply));
free(reply);
}
}
/* Otherwise, try to get window name from WM_NAME */
if (!pszWindowName)
{
xcb_get_property_cookie_t cookie;
xcb_icccm_get_text_property_reply_t reply;
cookie = xcb_icccm_get_wm_name(conn, iWin);
if (!xcb_icccm_get_wm_name_reply(conn, cookie, &reply, NULL)) {
ErrorF("GetWindowName - xcb_icccm_get_wm_name_reply failed. No name.\n");
*ppWindowName = NULL;
return;
}
pszWindowName = Xutf8TextPropertyToString(pWMInfo, &reply);
xcb_icccm_get_text_property_reply_wipe(&reply);
}
/* return the window name, unless... */
*ppWindowName = pszWindowName;
if (g_fHostInTitle) {
xcb_get_property_cookie_t cookie;
xcb_icccm_get_text_property_reply_t reply;
/* Try to get client machine name */
cookie = xcb_icccm_get_wm_client_machine(conn, iWin);
if (xcb_icccm_get_wm_client_machine_reply(conn, cookie, &reply, NULL)) {
char *pszClientMachine;
char *pszClientHostname;
char *dot;
char hostname[HOST_NAME_MAX + 1];
pszClientMachine = Xutf8TextPropertyToString(pWMInfo, &reply);
xcb_icccm_get_text_property_reply_wipe(&reply);
/* If client machine name looks like a FQDN, find the hostname */
pszClientHostname = strdup(pszClientMachine);
dot = strchr(pszClientHostname, '.');
if (dot)
*dot = '\0';
/*
If we have a client machine hostname
and it's not the local hostname
and it's not already in the window title...
*/
if (strlen(pszClientHostname) &&
!gethostname(hostname, HOST_NAME_MAX + 1) &&
strcmp(hostname, pszClientHostname) &&
(strstr(pszWindowName, pszClientHostname) == 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);
free(pszClientHostname);
}
}
}
/*
* Does the client support the specified WM_PROTOCOLS protocol?
*/
static Bool
IsWmProtocolAvailable(WMInfoPtr pWMInfo, xcb_window_t iWindow, xcb_atom_t atmProtocol)
{
int i, found = 0;
xcb_get_property_cookie_t cookie;
xcb_icccm_get_wm_protocols_reply_t reply;
xcb_connection_t *conn = pWMInfo->conn;
cookie = xcb_icccm_get_wm_protocols(conn, iWindow, pWMInfo->ewmh.WM_PROTOCOLS);
if (xcb_icccm_get_wm_protocols_reply(conn, cookie, &reply, NULL)) {
for (i = 0; i < reply.atoms_len; ++i)
if (reply.atoms[i] == atmProtocol) {
++found;
break;
}
xcb_icccm_get_wm_protocols_reply_wipe(&reply);
}
return found > 0;
}
/*
* Send a message to the X server from the WM thread
*/
static void
SendXMessage(xcb_connection_t *conn, xcb_window_t iWin, xcb_atom_t atmType, long nData)
{
xcb_client_message_event_t e;
/* Prepare the X event structure */
memset(&e, 0, sizeof(e));
e.response_type = XCB_CLIENT_MESSAGE;
e.window = iWin;
e.type = atmType;
e.format = 32;
e.data.data32[0] = nData;
e.data.data32[1] = XCB_CURRENT_TIME;
/* Send the event to X */
xcb_send_event(conn, FALSE, iWin, XCB_EVENT_MASK_NO_EVENT, (const char *)&e);
}
/*
* See if we can get the stored HWND for this window...
*/
static HWND
getHwnd(WMInfoPtr pWMInfo, xcb_window_t iWindow)
{
HWND hWnd = NULL;
xcb_get_property_cookie_t cookie;
xcb_get_property_reply_t *reply;
cookie = xcb_get_property(pWMInfo->conn, FALSE, iWindow, pWMInfo->atmPrivMap,
XCB_ATOM_INTEGER, 0L, sizeof(HWND)/4L);
reply = xcb_get_property_reply(pWMInfo->conn, cookie, NULL);
if (reply) {
int length = xcb_get_property_value_length(reply);
HWND *value = xcb_get_property_value(reply);
if (value && (length == sizeof(HWND))) {
hWnd = *value;
}
free(reply);
}
/* Some sanity checks */
if (!hWnd)
return NULL;
if (!IsWindow(hWnd))
return NULL;
return hWnd;
}
/*
* Helper function to check for override-redirect
*/
static Bool
IsOverrideRedirect(xcb_connection_t *conn, xcb_window_t iWin)
{
Bool result = FALSE;
xcb_get_window_attributes_reply_t *reply;
xcb_get_window_attributes_cookie_t cookie;
cookie = xcb_get_window_attributes(conn, iWin);
reply = xcb_get_window_attributes_reply(conn, cookie, NULL);
if (reply) {
result = (reply->override_redirect != 0);
free(reply);
}
else {
ErrorF("IsOverrideRedirect: Failed to get window attributes\n");
}
return result;
}
/*
* Helper function to get class and window names
*/
static void
GetClassNames(WMInfoPtr pWMInfo, xcb_window_t iWindow, char **res_name,
char **res_class, char **window_name)
{
xcb_get_property_cookie_t cookie1;
xcb_icccm_get_wm_class_reply_t reply1;
xcb_get_property_cookie_t cookie2;
xcb_icccm_get_text_property_reply_t reply2;
cookie1 = xcb_icccm_get_wm_class(pWMInfo->conn, iWindow);
if (xcb_icccm_get_wm_class_reply(pWMInfo->conn, cookie1, &reply1,
NULL)) {
*res_name = strdup(reply1.instance_name);
*res_class = strdup(reply1.class_name);
xcb_icccm_get_wm_class_reply_wipe(&reply1);
}
else {
*res_name = strdup("");
*res_class = strdup("");
}
cookie2 = xcb_icccm_get_wm_name(pWMInfo->conn, iWindow);
if (xcb_icccm_get_wm_name_reply(pWMInfo->conn, cookie2, &reply2, NULL)) {
*window_name = strndup(reply2.name, reply2.name_len);
xcb_icccm_get_text_property_reply_wipe(&reply2);
}
else {
*window_name = strdup("");
}
}
/*
* Updates the name of a HWND according to its X WM_NAME property
*/
static void
UpdateName(WMInfoPtr pWMInfo, xcb_window_t iWindow)
{
HWND hWnd;
hWnd = getHwnd(pWMInfo, iWindow);
if (!hWnd)
return;
/* If window isn't override-redirect */
if (!IsOverrideRedirect(pWMInfo->conn, iWindow)) {
char *pszWindowName;
/* Get the X windows window name */
GetWindowName(pWMInfo, 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, xcb_window_t iWindow)
{
HWND hWnd;
HICON hIconNew = NULL;
hWnd = getHwnd(pWMInfo, iWindow);
if (!hWnd)
return;
/* If window isn't override-redirect */
if (!IsOverrideRedirect(pWMInfo->conn, iWindow)) {
char *window_name = 0;
char *res_name = 0;
char *res_class = 0;
GetClassNames(pWMInfo, iWindow, &res_name, &res_class, &window_name);
hIconNew = winOverrideIcon(res_name, res_class, window_name);
free(res_name);
free(res_class);
free(window_name);
winUpdateIcon(hWnd, pWMInfo->conn, iWindow, hIconNew);
}
}
/*
* Updates the style of a HWND according to its X style properties
*/
static void
UpdateStyle(WMInfoPtr pWMInfo, xcb_window_t 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, 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);
}
/*
* Updates the state of a HWND
* (only minimization supported at the moment)
*/
static void
UpdateState(WMInfoPtr pWMInfo, xcb_window_t iWindow)
{
HWND hWnd;
winDebug("UpdateState: iWindow 0x%08x\n", (int)iWindow);
hWnd = getHwnd(pWMInfo, iWindow);
if (!hWnd)
return;
ShowWindow(hWnd, SW_MINIMIZE);
}
#if 0
/*
* Fix up any differences between the X11 and Win32 window stacks
* starting at the window passed in
*/
static void
PreserveWin32Stack(WMInfoPtr pWMInfo, xcb_window_t iWindow, UINT direction)
{
HWND hWnd;
DWORD myWinProcID, winProcID;
xcb_window_t 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;
/* 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 - MSG: %s (%d) ID: %d\n",
MessageName(&(pNode->msg)), (int)pNode->msg.msg, (int)pNode->msg.dwID);
#endif
/* Branch on the message type */
switch (pNode->msg.msg) {
#if 0
case WM_WM_MOVE:
break;
case WM_WM_SIZE:
break;
#endif
case WM_WM_RAISE:
/* Raise the window */
{
const static uint32_t values[] = { XCB_STACK_MODE_ABOVE };
xcb_configure_window(pWMInfo->conn, pNode->msg.iWindow,
XCB_CONFIG_WINDOW_STACK_MODE, values);
}
#if 0
PreserveWin32Stack(pWMInfo, pNode->msg.iWindow, GW_HWNDPREV);
#endif
break;
case WM_WM_LOWER:
/* Lower the window */
{
const static uint32_t values[] = { XCB_STACK_MODE_BELOW };
xcb_configure_window(pWMInfo->conn, pNode->msg.iWindow,
XCB_CONFIG_WINDOW_STACK_MODE, values);
}
break;
case WM_WM_MAP2:
/* Put a note as to the HWND associated with this Window */
xcb_change_property(pWMInfo->conn, XCB_PROP_MODE_REPLACE,
pNode->msg.iWindow, pWMInfo->atmPrivMap,
XCB_ATOM_INTEGER, 32,
sizeof(HWND)/4, &(pNode->msg.hwndWindow));
break;
case WM_WM_MAP3:
/* Put a note as to the HWND associated with this Window */
xcb_change_property(pWMInfo->conn, XCB_PROP_MODE_REPLACE,
pNode->msg.iWindow, pWMInfo->atmPrivMap,
XCB_ATOM_INTEGER, 32,
sizeof(HWND)/4, &(pNode->msg.hwndWindow));
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:
/* Unmap the window */
xcb_unmap_window(pWMInfo->conn, pNode->msg.iWindow);
break;
case WM_WM_KILL:
{
/* --- */
if (IsWmProtocolAvailable(pWMInfo,
pNode->msg.iWindow,
pWMInfo->atmWmDelete))
SendXMessage(pWMInfo->conn,
pNode->msg.iWindow,
pWMInfo->atmWmProtos, pWMInfo->atmWmDelete);
else
xcb_kill_client(pWMInfo->conn, pNode->msg.iWindow);
}
break;
case WM_WM_ACTIVATE:
/* 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;
xcb_get_property_cookie_t cookie;
xcb_icccm_wm_hints_t hints;
cookie = xcb_icccm_get_wm_hints(pWMInfo->conn, pNode->msg.iWindow);
if (xcb_icccm_get_wm_hints_reply(pWMInfo->conn, cookie, &hints,
NULL)) {
if (hints.flags & XCB_ICCCM_WM_HINT_INPUT)
neverFocus = !hints.input;
}
if (!neverFocus)
xcb_set_input_focus(pWMInfo->conn, XCB_INPUT_FOCUS_POINTER_ROOT,
pNode->msg.iWindow, XCB_CURRENT_TIME);
if (IsWmProtocolAvailable(pWMInfo,
pNode->msg.iWindow,
pWMInfo->atmWmTakeFocus))
SendXMessage(pWMInfo->conn,
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:
{
/* Don't do anything if this is an override-redirect window */
if (IsOverrideRedirect(pWMInfo->conn, pNode->msg.iWindow))
break;
UpdateStyle(pWMInfo, pNode->msg.iWindow);
}
break;
case WM_WM_CHANGE_STATE:
UpdateState(pWMInfo, 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 */
xcb_flush(pWMInfo->conn);
/* This is just laziness rather than making sure we used _checked everywhere */
{
xcb_generic_event_t *event = xcb_poll_for_event(pWMInfo->conn);
if (event) {
if ((event->response_type & ~0x80) == 0) {
xcb_generic_error_t *err = (xcb_generic_error_t *)event;
ErrorF("winMultiWindowWMProc - Error code: %i, ID: 0x%08x, "
"Major opcode: %i, Minor opcode: %i\n",
err->error_code, err->resource_id,
err->major_code, err->minor_code);
}
}
}
/* I/O errors etc. */
{
int e = xcb_connection_has_error(pWMInfo->conn);
if (e) {
ErrorF("winMultiWindowWMProc - Fatal error %d on xcb connection\n", e);
break;
}
}
}
/* 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;
}
static xcb_atom_t
intern_atom(xcb_connection_t *conn, const char *atomName)
{
xcb_intern_atom_reply_t *atom_reply;
xcb_intern_atom_cookie_t atom_cookie;
xcb_atom_t atom = XCB_ATOM_NONE;
atom_cookie = xcb_intern_atom(conn, 0, strlen(atomName), atomName);
atom_reply = xcb_intern_atom_reply(conn, atom_cookie, NULL);
if (atom_reply) {
atom = atom_reply->atom;
free(atom_reply);
}
return atom;
}
/*
* X message procedure
*/
static void *
winMultiWindowXMsgProc(void *pArg)
{
winWMMessageRec msg;
XMsgProcArgPtr pProcArg = (XMsgProcArgPtr) pArg;
char pszDisplay[512];
int iRetries;
xcb_atom_t atmWmName;
xcb_atom_t atmNetWmName;
xcb_atom_t atmWmHints;
xcb_atom_t atmWmChange;
xcb_atom_t atmNetWmIcon;
xcb_atom_t atmWindowState, atmMotifWmHints, atmWindowType, atmNormalHints;
int iReturn;
xcb_auth_info_t *auth_info;
winDebug("winMultiWindowXMsgProc - Hello\n");
/* Check that argument pointer is not invalid */
if (pProcArg == NULL) {
ErrorF("winMultiWindowXMsgProc - pProcArg is NULL. Exiting.\n");
pthread_exit(NULL);
}
winDebug("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);
}
winDebug("winMultiWindowXMsgProc - pthread_mutex_lock () returned.\n");
/* Release the server started mutex */
pthread_mutex_unlock(pProcArg->ppmServerStarted);
winDebug("winMultiWindowXMsgProc - pthread_mutex_unlock () returned.\n");
/* Setup the display connection string x */
winGetDisplayName(pszDisplay, (int) pProcArg->dwScreen);
/* Print the display connection string */
ErrorF("winMultiWindowXMsgProc - DISPLAY=%s\n", pszDisplay);
/* Use our generated cookie for authentication */
auth_info = winGetXcbAuthInfo();
/* Initialize retry count */
iRetries = 0;
/* Open the X display */
do {
/* Try to open the display */
pProcArg->conn = xcb_connect_to_display_with_auth_info(pszDisplay,
auth_info, NULL);
if (xcb_connection_has_error(pProcArg->conn)) {
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 (xcb_connection_has_error(pProcArg->conn) && iRetries < WIN_CONNECT_RETRIES);
/* Make sure that the display opened */
if (xcb_connection_has_error(pProcArg->conn)) {
ErrorF("winMultiWindowXMsgProc - Failed opening the display. "
"Exiting.\n");
pthread_exit(NULL);
}
ErrorF("winMultiWindowXMsgProc - xcb_connect() returned and "
"successfully opened the display.\n");
/* Check if another window manager is already running */
if (CheckAnotherWindowManager(pProcArg->conn, pProcArg->dwScreen)) {
ErrorF("winMultiWindowXMsgProc - "
"another window manager is running. Exiting.\n");
pthread_exit(NULL);
}
{
/* Get root window id */
xcb_screen_t *root_screen = xcb_aux_get_screen(pProcArg->conn, pProcArg->dwScreen);
xcb_window_t root_window_id = root_screen->root;
/* Set WM_ICON_SIZE property indicating desired icon sizes */
typedef struct {
uint32_t min_width, min_height;
uint32_t max_width, max_height;
int32_t width_inc, height_inc;
} xcb_wm_icon_size_hints_hints_t;
xcb_wm_icon_size_hints_hints_t xis;
xis.min_width = xis.min_height = 16;
xis.max_width = xis.max_height = 48;
xis.width_inc = xis.height_inc = 16;
xcb_change_property(pProcArg->conn, XCB_PROP_MODE_REPLACE, root_window_id,
XCB_ATOM_WM_ICON_SIZE, XCB_ATOM_WM_ICON_SIZE, 32,
sizeof(xis)/4, &xis);
}
atmWmName = intern_atom(pProcArg->conn, "WM_NAME");
atmNetWmName = intern_atom(pProcArg->conn, "_NET_WM_NAME");
atmWmHints = intern_atom(pProcArg->conn, "WM_HINTS");
atmWmChange = intern_atom(pProcArg->conn, "WM_CHANGE_STATE");
atmNetWmIcon = intern_atom(pProcArg->conn, "_NET_WM_ICON");
atmWindowState = intern_atom(pProcArg->conn, "_NET_WM_STATE");
atmMotifWmHints = intern_atom(pProcArg->conn, "_MOTIF_WM_HINTS");
atmWindowType = intern_atom(pProcArg->conn, "_NET_WM_WINDOW_TYPE");
atmNormalHints = intern_atom(pProcArg->conn, "WM_NORMAL_HINTS");
/*
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...
*/
intern_atom(pProcArg->conn, "WM_STATE");
/* Loop until we explicitly break out */
while (1) {
xcb_generic_event_t *event;
uint8_t type;
Bool send_event;
if (g_shutdown)
break;
/* Fetch next event */
event = xcb_wait_for_event(pProcArg->conn);
if (!event) { // returns NULL on I/O error
int e = xcb_connection_has_error(pProcArg->conn);
ErrorF("winMultiWindowXMsgProc - Fatal error %d on xcb connection\n", e);
break;
}
type = event->response_type & ~0x80;
send_event = event->response_type & 0x80;
winDebug("winMultiWindowXMsgProc - event %d\n", type);
/* Branch on event type */
if (type == 0) {
xcb_generic_error_t *err = (xcb_generic_error_t *)event;
ErrorF("winMultiWindowXMsgProc - Error code: %i, ID: 0x%08x, "
"Major opcode: %i, Minor opcode: %i\n",
err->error_code, err->resource_id,
err->major_code, err->minor_code);
}
else if (type == XCB_CREATE_NOTIFY) {
xcb_create_notify_event_t *notify = (xcb_create_notify_event_t *)event;
/* Request property change events */
const static uint32_t mask_value[] = { XCB_EVENT_MASK_PROPERTY_CHANGE };
xcb_change_window_attributes (pProcArg->conn, notify->window,
XCB_CW_EVENT_MASK, mask_value);
/* If it's not override-redirect, set the border-width to 0 */
if (!IsOverrideRedirect(pProcArg->conn, notify->window)) {
const static uint32_t width_value[] = { 0 };
xcb_configure_window(pProcArg->conn, notify->window,
XCB_CONFIG_WINDOW_BORDER_WIDTH, width_value);
}
}
else if (type == XCB_MAP_NOTIFY) {
/* 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
*/
xcb_map_notify_event_t *notify = (xcb_map_notify_event_t *)event;
xcb_get_geometry_cookie_t cookie;
xcb_get_geometry_reply_t *reply;
xcb_query_tree_cookie_t cookie_qt;
xcb_query_tree_reply_t *reply_qt;
cookie = xcb_get_geometry(pProcArg->conn, notify->window);
cookie_qt = xcb_query_tree(pProcArg->conn, notify->window);
reply = xcb_get_geometry_reply(pProcArg->conn, cookie, NULL);
reply_qt = xcb_query_tree_reply(pProcArg->conn, cookie_qt, NULL);
if (reply && reply_qt) {
/*
It's a top-level window if the parent window is a root window
Only non-override_redirect windows can get reparented
*/
if ((reply->root == reply_qt->parent) && !notify->override_redirect) {
xcb_reparent_notify_event_t event_send;
event_send.response_type = ReparentNotify;
event_send.event = notify->window;
event_send.window = notify->window;
event_send.parent = reply_qt->parent;
event_send.x = reply->x;
event_send.y = reply->y;
xcb_send_event (pProcArg->conn, TRUE, notify->window,
XCB_EVENT_MASK_STRUCTURE_NOTIFY,
(const char *)&event_send);
free(reply_qt);
free(reply);
}
}
}
else if (type == XCB_CONFIGURE_NOTIFY) {
if (!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
*/
xcb_configure_notify_event_t *notify = (xcb_configure_notify_event_t *)event;
xcb_configure_notify_event_t event_send = *notify;
event_send.event = notify->window;
xcb_send_event(pProcArg->conn, TRUE, notify->window,
XCB_EVENT_MASK_STRUCTURE_NOTIFY,
(const char *)&event_send);
}
}
else if (type == XCB_PROPERTY_NOTIFY) {
xcb_property_notify_event_t *notify = (xcb_property_notify_event_t *)event;
if ((notify->atom == atmWmName) ||
(notify->atom == atmNetWmName)) {
memset(&msg, 0, sizeof(msg));
msg.msg = WM_WM_NAME_EVENT;
msg.iWindow = notify->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 ((notify->atom == atmWmHints) ||
(notify->atom == atmWindowState) ||
(notify->atom == atmMotifWmHints) ||
(notify->atom == atmWindowType) ||
(notify->atom == atmNormalHints)) {
memset(&msg, 0, sizeof(msg));
msg.msg = WM_WM_HINTS_EVENT;
msg.iWindow = notify->window;
/* Other fields ignored */
winSendMessageToWM(pProcArg->pWMInfo, &msg);
}
/* Not an else as WM_HINTS affects both style and icon */
if ((notify->atom == atmWmHints) ||
(notify->atom == atmNetWmIcon)) {
memset(&msg, 0, sizeof(msg));
msg.msg = WM_WM_ICON_EVENT;
msg.iWindow = notify->window;
/* Other fields ignored */
winSendMessageToWM(pProcArg->pWMInfo, &msg);
}
}
}
else if (type == XCB_CLIENT_MESSAGE) {
xcb_client_message_event_t *client_msg = (xcb_client_message_event_t *)event;
if (client_msg->type == atmWmChange
&& client_msg->data.data32[0] == XCB_ICCCM_WM_STATE_ICONIC) {
ErrorF("winMultiWindowXMsgProc - WM_CHANGE_STATE - IconicState\n");
memset(&msg, 0, sizeof(msg));
msg.msg = WM_WM_CHANGE_STATE;
msg.iWindow = client_msg->window;
winSendMessageToWM(pProcArg->pWMInfo, &msg);
}
}
/* Free the event */
free(event);
}
xcb_disconnect(pProcArg->conn);
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)
{
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;
/* 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;
xcb_auth_info_t *auth_info;
winDebug("winInitMultiWindowWM - Hello\n");
/* Check that argument pointer is not invalid */
if (pProcArg == NULL) {
ErrorF("winInitMultiWindowWM - pProcArg is NULL. Exiting.\n");
pthread_exit(NULL);
}
winDebug("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);
}
winDebug("winInitMultiWindowWM - pthread_mutex_lock () returned.\n");
/* Release the server started mutex */
pthread_mutex_unlock(pProcArg->ppmServerStarted);
winDebug("winInitMultiWindowWM - pthread_mutex_unlock () returned.\n");
/* Setup the display connection string x */
winGetDisplayName(pszDisplay, (int) pProcArg->dwScreen);
/* Print the display connection string */
ErrorF("winInitMultiWindowWM - DISPLAY=%s\n", pszDisplay);
/* Use our generated cookie for authentication */
auth_info = winGetXcbAuthInfo();
/* Open the X display */
do {
/* Try to open the display */
pWMInfo->conn = xcb_connect_to_display_with_auth_info(pszDisplay,
auth_info, NULL);
if (xcb_connection_has_error(pWMInfo->conn)) {
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 (xcb_connection_has_error(pWMInfo->conn) && iRetries < WIN_CONNECT_RETRIES);
/* Make sure that the display opened */
if (xcb_connection_has_error(pWMInfo->conn)) {
ErrorF("winInitMultiWindowWM - Failed opening the display. "
"Exiting.\n");
pthread_exit(NULL);
}
ErrorF("winInitMultiWindowWM - xcb_connect () returned and "
"successfully opened the display.\n");
/* Create some atoms */
pWMInfo->atmWmProtos = intern_atom(pWMInfo->conn, "WM_PROTOCOLS");
pWMInfo->atmWmDelete = intern_atom(pWMInfo->conn, "WM_DELETE_WINDOW");
pWMInfo->atmWmTakeFocus = intern_atom(pWMInfo->conn, "WM_TAKE_FOCUS");
pWMInfo->atmPrivMap = intern_atom(pWMInfo->conn, WINDOWSWM_NATIVE_HWND);
pWMInfo->atmUtf8String = intern_atom(pWMInfo->conn, "UTF8_STRING");
pWMInfo->atmNetWmName = intern_atom(pWMInfo->conn, "_NET_WM_NAME");
/* Initialization for the xcb_ewmh and EWMH atoms */
{
xcb_intern_atom_cookie_t *atoms_cookie;
atoms_cookie = xcb_ewmh_init_atoms(pWMInfo->conn, &pWMInfo->ewmh);
if (xcb_ewmh_init_atoms_replies(&pWMInfo->ewmh, atoms_cookie, NULL)) {
/* Set the _NET_SUPPORTED atom for this context.
TODO: Audit to ensure we implement everything defined as MUSTs
for window managers in the EWMH standard.*/
xcb_atom_t supported[] =
{
pWMInfo->ewmh.WM_PROTOCOLS,
pWMInfo->ewmh._NET_SUPPORTED,
pWMInfo->ewmh._NET_SUPPORTING_WM_CHECK,
pWMInfo->ewmh._NET_CLOSE_WINDOW,
pWMInfo->ewmh._NET_WM_WINDOW_TYPE,
pWMInfo->ewmh._NET_WM_WINDOW_TYPE_DOCK,
pWMInfo->ewmh._NET_WM_WINDOW_TYPE_SPLASH,
pWMInfo->ewmh._NET_WM_STATE,
pWMInfo->ewmh._NET_WM_STATE_HIDDEN,
pWMInfo->ewmh._NET_WM_STATE_ABOVE,
pWMInfo->ewmh._NET_WM_STATE_BELOW,
pWMInfo->ewmh._NET_WM_STATE_SKIP_TASKBAR,
};
xcb_ewmh_set_supported(&pWMInfo->ewmh, pProcArg->dwScreen,
ARRAY_SIZE(supported), supported);
}
else {
ErrorF("winInitMultiWindowWM - xcb_ewmh_init_atoms() failed\n");
}
}
/*
Set the root window cursor to left_ptr (this controls the cursor an
application gets over it's windows when it doesn't set one)
*/
{
#define XC_left_ptr 68
xcb_cursor_t cursor = xcb_generate_id(pWMInfo->conn);
xcb_font_t font = xcb_generate_id(pWMInfo->conn);
xcb_font_t *mask_font = &font; /* An alias to clarify */
int shape = XC_left_ptr;
uint32_t mask = XCB_CW_CURSOR;
uint32_t value_list = cursor;
xcb_screen_t *root_screen = xcb_aux_get_screen(pWMInfo->conn, pProcArg->dwScreen);
xcb_window_t window = root_screen->root;
static const uint16_t fgred = 0, fggreen = 0, fgblue = 0;
static const uint16_t bgred = 0xFFFF, bggreen = 0xFFFF, bgblue = 0xFFFF;
xcb_open_font(pWMInfo->conn, font, sizeof("cursor"), "cursor");
xcb_create_glyph_cursor(pWMInfo->conn, cursor, font, *mask_font,
shape, shape + 1,
fgred, fggreen, fgblue, bgred, bggreen, bgblue);
xcb_change_window_attributes(pWMInfo->conn, window, mask, &value_list);
xcb_free_cursor(pWMInfo->conn, cursor);
xcb_close_font(pWMInfo->conn, font);
}
}
/*
* 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 %s\n", MessageName(pMsg));
#endif
pNode = malloc(sizeof(WMMsgNodeRec));
if (pNode != NULL) {
memcpy(&pNode->msg, pMsg, sizeof(winWMMessageRec));
PushMessage(&((WMInfoPtr) pWMInfo)->wmMsgQueue, pNode);
}
}
/*
* Check if another window manager is running
*/
static Bool
CheckAnotherWindowManager(xcb_connection_t *conn, DWORD dwScreen)
{
Bool redirectError = FALSE;
/* Get root window id */
xcb_screen_t *root_screen = xcb_aux_get_screen(conn, dwScreen);
xcb_window_t root_window_id = root_screen->root;
/*
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...
*/
const static uint32_t test_mask[] = { XCB_EVENT_MASK_RESIZE_REDIRECT |
XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
XCB_EVENT_MASK_BUTTON_PRESS };
xcb_void_cookie_t cookie = xcb_change_window_attributes_checked(conn,
root_window_id,
XCB_CW_EVENT_MASK,
test_mask);
xcb_generic_error_t *error;
if ((error = xcb_request_check(conn, cookie)))
{
redirectError = TRUE;
free(error);
}
/*
Side effect: select the events we are actually interested in...
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...
*/
{
const uint32_t mask[] = { XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY |
XCB_EVENT_MASK_BUTTON_PRESS };
xcb_change_window_attributes(conn, root_window_id, XCB_CW_EVENT_MASK, mask);
}
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(WMInfoPtr pWMInfo, xcb_window_t iWindow, HWND hWnd, HWND * zstyle)
{
xcb_connection_t *conn = pWMInfo->conn;
static xcb_atom_t windowState, motif_wm_hints;
static xcb_atom_t hiddenState, fullscreenState, belowState, aboveState,
skiptaskbarState;
static xcb_atom_t splashType;
static int generation;
unsigned long hint = 0, maxmin = 0;
unsigned long style, exStyle;
if (!hWnd)
return;
if (!IsWindow(hWnd))
return;
if (generation != serverGeneration) {
generation = serverGeneration;
windowState = intern_atom(conn, "_NET_WM_STATE");
motif_wm_hints = intern_atom(conn, "_MOTIF_WM_HINTS");
hiddenState = intern_atom(conn, "_NET_WM_STATE_HIDDEN");
fullscreenState = intern_atom(conn, "_NET_WM_STATE_FULLSCREEN");
belowState = intern_atom(conn, "_NET_WM_STATE_BELOW");
aboveState = intern_atom(conn, "_NET_WM_STATE_ABOVE");
skiptaskbarState = intern_atom(conn, "_NET_WM_STATE_SKIP_TASKBAR");
splashType = intern_atom(conn, "_NET_WM_WINDOW_TYPE_SPLASHSCREEN");
}
{
xcb_get_property_cookie_t cookie_wm_state = xcb_get_property(conn, FALSE, iWindow, windowState, XCB_ATOM_ATOM, 0L, INT_MAX);
xcb_get_property_reply_t *reply = xcb_get_property_reply(conn, cookie_wm_state, NULL);
if (reply) {
int i;
int nitems = xcb_get_property_value_length(reply)/sizeof(xcb_atom_t);
xcb_atom_t *pAtom = xcb_get_property_value(reply);
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;
}
free(reply);
}
}
{
xcb_get_property_cookie_t cookie_mwm_hint = xcb_get_property(conn, FALSE, iWindow, motif_wm_hints, motif_wm_hints, 0L, sizeof(MwmHints));
xcb_get_property_reply_t *reply = xcb_get_property_reply(conn, cookie_mwm_hint, NULL);
if (reply) {
int nitems = xcb_get_property_value_length(reply)/4;
MwmHints *mwm_hint = xcb_get_property_value(reply);
if (mwm_hint && (nitems >= PropMwmHintsElements) &&
(mwm_hint->flags & MwmHintsDecorations)) {
if (!mwm_hint->decorations)
hint |= (HINT_NOFRAME | HINT_NOSYSMENU | HINT_NOMINIMIZE | HINT_NOMAXIMIZE);
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.
*/
}
}
free(reply);
}
}
{
int i;
xcb_ewmh_get_atoms_reply_t type;
xcb_get_property_cookie_t cookie = xcb_ewmh_get_wm_window_type(&pWMInfo->ewmh, iWindow);
if (xcb_ewmh_get_wm_window_type_reply(&pWMInfo->ewmh, cookie, &type, NULL)) {
for (i = 0; i < type.atoms_len; i++) {
if (type.atoms[i] == pWMInfo->ewmh._NET_WM_WINDOW_TYPE_DOCK) {
hint = (hint & ~HINT_NOFRAME) | HINT_SKIPTASKBAR | HINT_SIZEBOX;
*zstyle = HWND_TOPMOST;
}
else if ((type.atoms[i] == pWMInfo->ewmh._NET_WM_WINDOW_TYPE_SPLASH)
|| (type.atoms[i] == splashType)) {
hint |= (HINT_SKIPTASKBAR | HINT_NOSYSMENU | HINT_NOMINIMIZE | HINT_NOMAXIMIZE);
*zstyle = HWND_TOPMOST;
}
}
}
}
{
xcb_size_hints_t size_hints;
xcb_get_property_cookie_t cookie;
cookie = xcb_icccm_get_wm_normal_hints(conn, iWindow);
if (xcb_icccm_get_wm_normal_hints_reply(conn, cookie, &size_hints, NULL)) {
if (size_hints.flags & XCB_ICCCM_SIZE_HINT_P_MAX_SIZE) {
/* Not maximizable if a maximum size is specified, and that size
is smaller (in either dimension) than the screen size */
if ((size_hints.max_width < GetSystemMetrics(SM_CXVIRTUALSCREEN))
|| (size_hints.max_height < GetSystemMetrics(SM_CYVIRTUALSCREEN)))
hint |= HINT_NOMAXIMIZE;
if (size_hints.flags & XCB_ICCCM_SIZE_HINT_P_MIN_SIZE) {
/*
If both minimum size and maximum size are specified and are the same,
don't bother with a resizing frame
*/
if ((size_hints.min_width == size_hints.max_width)
&& (size_hints.min_height == size_hints.max_height))
hint = (hint & ~HINT_SIZEBOX);
}
}
}
}
/*
Override hint settings from above with settings from config file and set
application id for grouping.
*/
{
char *application_id = 0;
char *window_name = 0;
char *res_name = 0;
char *res_class = 0;
GetClassNames(pWMInfo, iWindow, &res_name, &res_class, &window_name);
style = STYLE_NONE;
style = winOverrideStyle(res_name, res_class, window_name);
#define APPLICATION_ID_FORMAT "%s.xwin.%s"
#define APPLICATION_ID_UNKNOWN "unknown"
if (res_class) {
asprintf(&application_id, APPLICATION_ID_FORMAT, XVENDORNAME,
res_class);
}
else {
asprintf(&application_id, APPLICATION_ID_FORMAT, XVENDORNAME,
APPLICATION_ID_UNKNOWN);
}
winSetAppUserModelID(hWnd, application_id);
free(application_id);
free(res_name);
free(res_class);
free(window_name);
}
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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