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hw/xwin: Refactor Xutf8TextPropertyToString() from GetWindowName() as a separate utility function

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Simplify GetWindowName() by moving UTF-8 to wchar conversion out to it's call
site.  This allows us to do extra processing on the window name in future.

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
This commit is contained in:
Jon TURNEY 2012-07-20 13:51:35 +01:00
parent afa53fe7cf
commit 2a47c91eb3
1 changed files with 63 additions and 44 deletions
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107
hw/xwin/winmultiwindowwm.c
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@ -151,7 +151,7 @@ static Bool
InitQueue(WMMsgQueuePtr pQueue);
static void
GetWindowName(Display * pDpy, Window iWin, wchar_t ** ppName);
GetWindowName(Display * pDpy, Window iWin, char **ppWindowName);
static int
SendXMessage(Display * pDisplay, Window iWin, Atom atmType, long nData);
@ -399,38 +399,19 @@ InitQueue(WMMsgQueuePtr pQueue)
return TRUE;
}
/*
* GetWindowName - Retrieve the title of an X Window
*/
static void
GetWindowName(Display * pDisplay, Window iWin, wchar_t ** ppName)
static
char *
Xutf8TextPropertyToString(Display * pDisplay, XTextProperty * xtp)
{
int nResult, nNum;
int nNum;
char **ppList;
char *pszReturnData;
int iLen, i;
XTextProperty xtpName;
#if CYGMULTIWINDOW_DEBUG
ErrorF("GetWindowName\n");
#endif
if (Xutf8TextPropertyToTextList(pDisplay, xtp, &ppList, &nNum) >= Success &&
nNum > 0 && *ppList) {
int i;
int iLen = 0;
/* Intialize ppName to NULL */
*ppName = NULL;
/* Try to get --- */
nResult = XGetWMName(pDisplay, iWin, &xtpName);
if (!nResult || !xtpName.value || !xtpName.nitems) {
#if CYGMULTIWINDOW_DEBUG
ErrorF("GetWindowName - XGetWMName failed. No name.\n");
#endif
return;
}
if (Xutf8TextPropertyToTextList(pDisplay, &xtpName, &ppList, &nNum) >=
Success && nNum > 0 && *ppList) {
iLen = 0;
for (i = 0; i < nNum; i++)
iLen += strlen(ppList[i]);
pszReturnData = (char *) malloc(iLen + 1);
@ -444,15 +425,40 @@ GetWindowName(Display * pDisplay, Window iWin, wchar_t ** ppName)
pszReturnData = (char *) malloc(1);
pszReturnData[0] = '\0';
}
iLen = MultiByteToWideChar(CP_UTF8, 0, pszReturnData, -1, NULL, 0);
*ppName = (wchar_t *) malloc(sizeof(wchar_t) * (iLen + 1));
MultiByteToWideChar(CP_UTF8, 0, pszReturnData, -1, *ppName, iLen);
XFree(xtpName.value);
free(pszReturnData);
return pszReturnData;
}
/*
* GetWindowName - Retrieve the title of an X Window
*/
static void
GetWindowName(Display * pDisplay, Window iWin, char **ppWindowName)
{
int nResult;
XTextProperty xtpWindowName;
char *pszWindowName;
#if CYGMULTIWINDOW_DEBUG
ErrorF("GetWindowName - Returning\n");
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);
*ppWindowName = pszWindowName;
}
/*
@ -528,17 +534,30 @@ UpdateName(WMInfoPtr pWMInfo, Window iWindow)
if (!hWnd)
return;
/* Set the Windows window name */
GetWindowName(pWMInfo->pDisplay, iWindow, &pszName);
if (pszName) {
/* Get the window attributes */
XGetWindowAttributes(pWMInfo->pDisplay, iWindow, &attr);
if (!attr.override_redirect) {
SetWindowTextW(hWnd, pszName);
winUpdateIcon(iWindow);
}
/* If window isn't override-redirect */
XGetWindowAttributes(pWMInfo->pDisplay, iWindow, &attr);
if (!attr.override_redirect) {
char *pszWindowName;
free(pszName);
/* 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 =
(wchar_t *) malloc(sizeof(wchar_t) * (iLen + 1));
MultiByteToWideChar(CP_UTF8, 0, pszWindowName, -1,
pwszWideWindowName, iLen);
/* Set the Windows window name */
SetWindowTextW(hWnd, pwszWideWindowName);
winUpdateIcon(iWindow);
free(pwszWideWindowName);
free(pszWindowName);
}
}
}