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Backed out changeset 43282679151a (bug 1805322) for EnumFirstChild related bustages. CLOSED TREE

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This commit is contained in:
Stanca Serban 2023-05-02 17:54:13 +03:00
parent 167da1b7f7
commit e22d1a4b5b
2 changed files with 47 additions and 0 deletions
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40
widget/windows/WinUtils.cpp
View file

@ -785,6 +785,46 @@ static BOOL WINAPI EnumFirstChild(HWND hwnd, LPARAM lParam) {
return FALSE;
}
/* static */
void WinUtils::InvalidatePluginAsWorkaround(nsIWidget* aWidget,
const LayoutDeviceIntRect& aRect) {
aWidget->Invalidate(aRect);
// XXX - Even more evil workaround!! See bug 762948, flash's bottom
// level sandboxed window doesn't seem to get our invalidate. We send
// an invalidate to it manually. This is totally specialized for this
// bug, for other child window structures this will just be a more or
// less bogus invalidate but since that should not have any bad
// side-effects this will have to do for now.
HWND current = (HWND)aWidget->GetNativeData(NS_NATIVE_WINDOW);
RECT windowRect;
RECT parentRect;
::GetWindowRect(current, &parentRect);
HWND next = current;
do {
current = next;
::EnumChildWindows(current, &EnumFirstChild, (LPARAM)&next);
::GetWindowRect(next, &windowRect);
// This is relative to the screen, adjust it to be relative to the
// window we're reconfiguring.
windowRect.left -= parentRect.left;
windowRect.top -= parentRect.top;
} while (next != current && windowRect.top == 0 && windowRect.left == 0);
if (windowRect.top == 0 && windowRect.left == 0) {
RECT rect;
rect.left = aRect.X();
rect.top = aRect.Y();
rect.right = aRect.XMost();
rect.bottom = aRect.YMost();
::InvalidateRect(next, &rect, FALSE);
}
}
#ifdef MOZ_PLACES
/************************************************************************
* Constructs as AsyncFaviconDataReady Object

7
widget/windows/WinUtils.h
View file

@ -492,6 +492,13 @@ class WinUtils {
*/
static LayoutDeviceIntRect ToIntRect(const RECT& aRect);
/**
* Helper used in invalidating flash plugin windows owned
* by low rights flash containers.
*/
static void InvalidatePluginAsWorkaround(nsIWidget* aWidget,
const LayoutDeviceIntRect& aRect);
/**
* Returns true if the context or IME state is enabled. Otherwise, false.
*/