xserver-multidpi/hw/xwin/winwin32rootlesswindow.c
Jon TURNEY 527cf13135 hw/xwin: Make winOverrideIcon() thread-safe for icon data access
winOverrideIcon() is called from the internal WM client thread.

Accessing server-internal data structures to get icon data or window hints is
not safe, as there is no lock to ensure we do not collide with these data
structures being updated in the server thread.

Rewrite so the internal client thread uses X client calls to obtain this data
safely

We used to also set the icon inside the server when the window was initially
created.  For simplicity, we simply send a message to the internal WM to update
the icon when the window is created (rather than writing different icon update
code which can work in the server thread for that one case...)

extwm mode used to do the icon update in the server. I'm not sure that actually
made much sense.  Let's assume the external WM client can do it instead...

v2
Make sure that WM_WM_ICON_EVENT does nothing for override-redirect windows

v3
Reinstate check that native window actually has expected properties for an X
window before trying to update it's icon; some auxiliary windows owned by the
XWin process don't, which would cause a crash

v4
Various fixes to pixmap icon conversion:
- remove left-over malloc in winScaleXimageToWindowsIcon causing a memory leak
- don't recalculate DDBitmap stride in winScaleXimageToWindowsIcon, when we already have worked it out
- properly check that XGetWindowProperty(NET_WM_ICON) returned some data
- don't try to retrieve WM_HINTS icon_mask if it isn't set
- restore accidentally dropped calculation of effBpp, stride, maskStride of output DDBitmap
- make sure imageMask is zero-initalized before we use it to mask the DDBitmap

v5
Remove a left-over unused variable

v6
Avoid XDestroyImage(NULL) crash if XGetImage failed for icon_pixmap

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
2012-08-03 22:47:42 +01:00

436 lines
14 KiB
C

/*
*Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
*
*Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
*"Software"), to deal in the Software without restriction, including
*without limitation the rights to use, copy, modify, merge, publish,
*distribute, sublicense, and/or sell copies of the Software, and to
*permit persons to whom the Software is furnished to do so, subject to
*the following conditions:
*
*The above copyright notice and this permission notice shall be
*included in all copies or substantial portions of the Software.
*
*THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
*EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
*MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
*NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
*ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
*CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
*WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*Except as contained in this notice, the name of the XFree86 Project
*shall not be used in advertising or otherwise to promote the sale, use
*or other dealings in this Software without prior written authorization
*from the XFree86 Project.
*
* Authors: Kensuke Matsuzaki
* Earle F. Philhower, III
* Harold L Hunt II
*/
#ifdef HAVE_XWIN_CONFIG_H
#include <xwin-config.h>
#endif
#include "win.h"
#include "winprefs.h"
#if 0
/*
* winMWExtWMReorderWindows
*/
void
winMWExtWMReorderWindows(ScreenPtr pScreen)
{
winScreenPriv(pScreen);
HWND hwnd = NULL;
win32RootlessWindowPtr pRLWin = NULL;
win32RootlessWindowPtr pRLWinSib = NULL;
DWORD dwCurrentProcessID = GetCurrentProcessId();
DWORD dwWindowProcessID = 0;
XID vlist[2];
#if CYGMULTIWINDOW_DEBUG && FALSE
winDebug("winMWExtWMReorderWindows\n");
#endif
pScreenPriv->fRestacking = TRUE;
if (pScreenPriv->fWindowOrderChanged) {
#if CYGMULTIWINDOW_DEBUG
winDebug("winMWExtWMReorderWindows - Need to restack\n");
#endif
hwnd = GetTopWindow(NULL);
while (hwnd) {
GetWindowThreadProcessId(hwnd, &dwWindowProcessID);
if ((dwWindowProcessID == dwCurrentProcessID)
&& GetProp(hwnd, WIN_WINDOW_PROP)) {
pRLWinSib = pRLWin;
pRLWin =
(win32RootlessWindowPtr) GetProp(hwnd, WIN_WINDOW_PROP);
if (pRLWinSib) {
vlist[0] = pRLWinSib->pFrame->win->drawable.id;
vlist[1] = Below;
ConfigureWindow(pRLWin->pFrame->win,
CWSibling | CWStackMode, vlist,
wClient(pRLWin->pFrame->win));
}
else {
/* 1st window - raise to the top */
vlist[0] = Above;
ConfigureWindow(pRLWin->pFrame->win, CWStackMode,
vlist, wClient(pRLWin->pFrame->win));
}
}
hwnd = GetNextWindow(hwnd, GW_HWNDNEXT);
}
}
pScreenPriv->fRestacking = FALSE;
pScreenPriv->fWindowOrderChanged = FALSE;
}
#endif
/*
* winMWExtWMMoveXWindow
*/
void
winMWExtWMMoveXWindow(WindowPtr pWin, int x, int y)
{
CARD32 *vlist = malloc(sizeof(CARD32) * 2);
vlist[0] = x;
vlist[1] = y;
ConfigureWindow(pWin, CWX | CWY, vlist, wClient(pWin));
free(vlist);
}
/*
* winMWExtWMResizeXWindow
*/
void
winMWExtWMResizeXWindow(WindowPtr pWin, int w, int h)
{
CARD32 *vlist = malloc(sizeof(CARD32) * 2);
vlist[0] = w;
vlist[1] = h;
ConfigureWindow(pWin, CWWidth | CWHeight, vlist, wClient(pWin));
free(vlist);
}
/*
* winMWExtWMMoveResizeXWindow
*/
void
winMWExtWMMoveResizeXWindow(WindowPtr pWin, int x, int y, int w, int h)
{
CARD32 *vlist = malloc(sizeof(long) * 4);
vlist[0] = x;
vlist[1] = y;
vlist[2] = w;
vlist[3] = h;
ConfigureWindow(pWin, CWX | CWY | CWWidth | CWHeight, vlist, wClient(pWin));
free(vlist);
}
/*
* winMWExtWMDecorateWindow - Update window style. Called by EnumWindows.
*/
wBOOL CALLBACK
winMWExtWMDecorateWindow(HWND hwnd, LPARAM lParam)
{
win32RootlessWindowPtr pRLWinPriv = NULL;
ScreenPtr pScreen = NULL;
winPrivScreenPtr pScreenPriv = NULL;
winScreenInfo *pScreenInfo = NULL;
/* Check if the Windows window property for our X window pointer is valid */
if ((pRLWinPriv =
(win32RootlessWindowPtr) GetProp(hwnd, WIN_WINDOW_PROP)) != NULL) {
if (pRLWinPriv != NULL && pRLWinPriv->pFrame != NULL &&
pRLWinPriv->pFrame->win != NULL)
pScreen = pRLWinPriv->pFrame->win->drawable.pScreen;
if (pScreen)
pScreenPriv = winGetScreenPriv(pScreen);
if (pScreenPriv)
pScreenInfo = pScreenPriv->pScreenInfo;
if (pRLWinPriv && pScreenInfo)
winMWExtWMUpdateWindowDecoration(pRLWinPriv, pScreenInfo);
}
return TRUE;
}
/*
* winMWExtWMUpdateWindowDecoration - Update window style.
*/
void
winMWExtWMUpdateWindowDecoration(win32RootlessWindowPtr pRLWinPriv,
winScreenInfoPtr pScreenInfo)
{
Bool fDecorate = FALSE;
DWORD dwExStyle = 0;
DWORD dwStyle = 0;
WINDOWPLACEMENT wndPlace;
UINT showCmd = 0;
wndPlace.length = sizeof(WINDOWPLACEMENT);
/* Get current window placement */
GetWindowPlacement(pRLWinPriv->hWnd, &wndPlace);
if (winIsInternalWMRunning(pScreenInfo)) {
if (!pRLWinPriv->pFrame->win->overrideRedirect)
fDecorate = TRUE;
}
#if 0
if (wndPlace.showCmd == SW_HIDE)
return; //showCmd = SWP_HIDEWINDOW;
else
showCmd = SWP_SHOWWINDOW;
#else
if (wndPlace.showCmd == SW_HIDE)
return;
if (IsWindowVisible(pRLWinPriv->hWnd))
showCmd = SWP_SHOWWINDOW;
#endif
showCmd |= SWP_NOMOVE | SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOZORDER;
winDebug("winMWExtWMUpdateWindowDecoration %08x %s\n",
(int) pRLWinPriv, fDecorate ? "Decorate" : "Bare");
/* Get the standard and extended window style information */
dwExStyle = GetWindowLongPtr(pRLWinPriv->hWnd, GWL_EXSTYLE);
dwStyle = GetWindowLongPtr(pRLWinPriv->hWnd, GWL_STYLE);
if (fDecorate) {
RECT rcNew;
int iDx, iDy;
winWMMessageRec wmMsg;
winScreenPriv(pScreenInfo->pScreen);
/* */
if (!(dwExStyle & WS_EX_APPWINDOW)) {
winDebug("\tBare=>Decorate\n");
/* Setup a rectangle with the X window position and size */
SetRect(&rcNew,
pRLWinPriv->pFrame->x,
pRLWinPriv->pFrame->y,
pRLWinPriv->pFrame->x + pRLWinPriv->pFrame->width,
pRLWinPriv->pFrame->y + pRLWinPriv->pFrame->height);
#ifdef CYGMULTIWINDOW_DEBUG
winDebug("\tWindow extend {%d, %d, %d, %d}, {%d, %d}\n",
rcNew.left, rcNew.top, rcNew.right, rcNew.bottom,
rcNew.right - rcNew.left, rcNew.bottom - rcNew.top);
#endif
/* */
AdjustWindowRectEx(&rcNew,
WS_POPUP | WS_SIZEBOX | WS_OVERLAPPEDWINDOW,
FALSE, WS_EX_APPWINDOW);
#ifdef CYGMULTIWINDOW_DEBUG
winDebug("\tAdjusted {%d, %d, %d, %d}, {%d, %d}\n",
rcNew.left, rcNew.top, rcNew.right, rcNew.bottom,
rcNew.right - rcNew.left, rcNew.bottom - rcNew.top);
#endif
/* Calculate position deltas */
iDx = pRLWinPriv->pFrame->x - rcNew.left;
iDy = pRLWinPriv->pFrame->y - rcNew.top;
/* Calculate new rectangle */
rcNew.left += iDx;
rcNew.right += iDx;
rcNew.top += iDy;
rcNew.bottom += iDy;
/* Set the window extended style flags */
SetWindowLongPtr(pRLWinPriv->hWnd, GWL_EXSTYLE, WS_EX_APPWINDOW);
/* Set the window standard style flags */
SetWindowLongPtr(pRLWinPriv->hWnd, GWL_STYLE,
WS_POPUP | WS_SIZEBOX | WS_OVERLAPPEDWINDOW);
#ifdef CYGMULTIWINDOW_DEBUG
winDebug("\tWindowStyle: %08x %08x\n",
WS_POPUP | WS_SIZEBOX | WS_OVERLAPPEDWINDOW,
WS_EX_APPWINDOW);
#endif
/* Position the Windows window */
#ifdef CYGMULTIWINDOW_DEBUG
winDebug("\tMoved {%d, %d, %d, %d}, {%d, %d}\n",
rcNew.left, rcNew.top, rcNew.right, rcNew.bottom,
rcNew.right - rcNew.left, rcNew.bottom - rcNew.top);
#endif
SetWindowPos(pRLWinPriv->hWnd, NULL,
rcNew.left, rcNew.top,
rcNew.right - rcNew.left, rcNew.bottom - rcNew.top,
showCmd);
wmMsg.hwndWindow = pRLWinPriv->hWnd;
wmMsg.iWindow = (Window) pRLWinPriv->pFrame->win->drawable.id;
wmMsg.msg = WM_WM_NAME_EVENT;
winSendMessageToWM(pScreenPriv->pWMInfo, &wmMsg);
winMWExtWMReshapeFrame((RootlessFrameID) pRLWinPriv,
wBoundingShape(pRLWinPriv->pFrame->win));
}
}
else {
RECT rcNew;
/* */
if (dwExStyle & WS_EX_APPWINDOW) {
winDebug("\tDecorate=>Bare\n");
/* Setup a rectangle with the X window position and size */
SetRect(&rcNew,
pRLWinPriv->pFrame->x,
pRLWinPriv->pFrame->y,
pRLWinPriv->pFrame->x + pRLWinPriv->pFrame->width,
pRLWinPriv->pFrame->y + pRLWinPriv->pFrame->height);
#if 0
/* */
AdjustWindowRectEx(&rcNew,
WS_POPUP | WS_CLIPCHILDREN,
FALSE, WS_EX_TOOLWINDOW);
/* Calculate position deltas */
iDx = pRLWinPriv->pFrame->x - rcNew.left;
iDy = pRLWinPriv->pFrame->y - rcNew.top;
/* Calculate new rectangle */
rcNew.left += iDx;
rcNew.right += iDx;
rcNew.top += iDy;
rcNew.bottom += iDy;
#endif
/* Hide window temporary to remove from taskbar. */
ShowWindow(pRLWinPriv->hWnd, SW_HIDE);
/* Set the window extended style flags */
SetWindowLongPtr(pRLWinPriv->hWnd, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
/* Set the window standard style flags */
SetWindowLongPtr(pRLWinPriv->hWnd, GWL_STYLE,
WS_POPUP | WS_CLIPCHILDREN);
/* Position the Windows window */
SetWindowPos(pRLWinPriv->hWnd, NULL,
rcNew.left, rcNew.top,
rcNew.right - rcNew.left, rcNew.bottom - rcNew.top,
showCmd);
winMWExtWMReshapeFrame((RootlessFrameID) pRLWinPriv,
wBoundingShape(pRLWinPriv->pFrame->win));
}
}
}
/*
* winIsInternalWMRunning (winScreenInfoPtr pScreenInfo)
*/
Bool
winIsInternalWMRunning(winScreenInfoPtr pScreenInfo)
{
return pScreenInfo->fInternalWM && !pScreenInfo->fAnotherWMRunning;
}
/*
* winMWExtWMRestackWindows
*/
void
winMWExtWMRestackWindows(ScreenPtr pScreen)
{
winScreenPriv(pScreen);
WindowPtr pRoot = pScreen->root;
WindowPtr pWin = NULL;
WindowPtr pWinPrev = NULL;
win32RootlessWindowPtr pRLWin = NULL;
win32RootlessWindowPtr pRLWinPrev = NULL;
int nWindow = 0;
HDWP hWinPosInfo = NULL;
#if CYGMULTIWINDOW_DEBUG
winDebug("winMWExtWMRestackWindows\n");
#endif
pScreenPriv->fRestacking = TRUE;
if (pRoot != NULL) {
for (pWin = pRoot->firstChild; pWin; pWin = pWin->nextSib)
nWindow++;
hWinPosInfo = BeginDeferWindowPos(nWindow);
for (pWin = pRoot->firstChild; pWin; pWin = pWin->nextSib) {
if (pWin->realized) {
UINT uFlags;
pRLWin =
(win32RootlessWindowPtr) RootlessFrameForWindow(pWin,
FALSE);
if (pRLWin == NULL)
continue;
if (pWinPrev)
pRLWinPrev =
(win32RootlessWindowPtr)
RootlessFrameForWindow(pWinPrev, FALSE);
uFlags = SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW;
if (pRLWinPrev != NULL)
uFlags |= SWP_NOACTIVATE;
#if CYGMULTIWINDOW_DEBUG
winDebug
("winMWExtWMRestackWindows - DeferWindowPos (%08x, %08x)\n",
pRLWin->hWnd, pRLWinPrev ? pRLWinPrev->hWnd : HWND_TOP);
#endif
hWinPosInfo = DeferWindowPos(hWinPosInfo, pRLWin->hWnd,
pRLWinPrev ? pRLWinPrev->
hWnd : HWND_TOP, 0, 0, 0, 0,
uFlags);
if (hWinPosInfo == NULL) {
ErrorF
("winMWExtWMRestackWindows - DeferWindowPos () failed: %d\n",
(int) GetLastError());
return;
}
pWinPrev = pWin;
}
}
if (!EndDeferWindowPos(hWinPosInfo)) {
ErrorF
("winMWExtWMRestackWindows - EndDeferWindowPos () failed: %d\n",
(int) GetLastError());
return;
}
}
#if CYGMULTIWINDOW_DEBUG
winDebug("winMWExtWMRestackWindows - done\n");
#endif
pScreenPriv->fRestacking = FALSE;
}