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Bug 1454908 - do an empty paint when skipping the actual paint for the blank window, to stop Windows from sending messages repeatedly, r=jimm.

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This commit is contained in:
Florian Quèze 2018-04-18 21:17:46 +02:00
parent ee8a623de2
commit 0bf69fee2b
1 changed files with 5 additions and 2 deletions
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7
widget/windows/nsWindowGfx.cpp
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@ -221,8 +221,13 @@ bool nsWindow::OnPaint(HDC aDC, uint32_t aNestingLevel)
return true;
}
PAINTSTRUCT ps;
// Avoid starting the GPU process for the initial navigator:blank window.
if (mIsEarlyBlankWindow) {
// Call BeginPaint/EndPaint or Windows will keep sending us messages.
::BeginPaint(mWnd, &ps);
::EndPaint(mWnd, &ps);
return true;
}
@ -233,8 +238,6 @@ bool nsWindow::OnPaint(HDC aDC, uint32_t aNestingLevel)
}
mLastPaintBounds = mBounds;
PAINTSTRUCT ps;
#ifdef MOZ_XUL
if (!aDC && (eTransparencyTransparent == mTransparencyMode))
{