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Cleaned up the new control lifetime logic on Windows.

This commit is contained in:
Pietro Gagliardi 2015-04-18 18:07:57 -04:00
parent 55fe50463f
commit cf8871c524
1 changed files with 7 additions and 8 deletions
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15
windows/newcontrol.c
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@ -14,17 +14,17 @@ struct singleHWND {
BOOL containerHid;
BOOL userDisabled;
BOOL containerDisabled;
BOOL canDestroy;
};
static void singleDestroy(uiControl *c)
{
singleHWND *s = (singleHWND *) (c->Internal);
s->canDestroy = TRUE;
SendMessageW(s->hwnd, msgCanDestroyNow, 0, 0);
(*(s->onDestroy))(s->onDestroyData);
if (DestroyWindow(s->hwnd) == 0)
logLastError("error destroying control in singleDestroy()");
// the data structures are destroyed in the subclass procedure
uiFree(s);
}
static uintptr_t singleHandle(uiControl *c)
@ -164,12 +164,10 @@ static LRESULT CALLBACK singleSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam,
return lResult;
break;
case WM_DESTROY:
if (!s->canDestroy)
complain("trying to destroy control with singleWidget at %p before uiControlDestroy()", s);
(*(s->onDestroy))(s->onDestroyData);
uiFree(s);
case WM_NCDESTROY: // just in case
complain("trying to destroy control at %p before uiControlDestroy()", c);
break;
case WM_NCDESTROY:
case msgCanDestroyNow:
if ((*fv_RemoveWindowSubclass)(hwnd, singleSubclassProc, uIdSubclass) == FALSE)
logLastError("error removing Windows control subclass in singleSubclassProc()");
break;
@ -214,6 +212,7 @@ void uiWindowsNewControl(uiControl *c, uiWindowsNewControlParams *p)
if (p->useStandardControlFont)
SendMessageW(s->hwnd, WM_SETFONT, (WPARAM) hMessageFont, (LPARAM) TRUE);
// this handles both blocking control destruction and redirected notification messages
if ((*fv_SetWindowSubclass)(s->hwnd, singleSubclassProc, 0, (DWORD_PTR) c) == FALSE)
logLastError("error subclassing Windows control in uiWindowsNewControl()");