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Bug 450930. Fire a DOM event when painting so that content and chrome can track what's being repainted. r=smaug,sr=dbaron

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This commit is contained in:
Robert O'Callahan
2008-09-18 21:47:21 +12:00
parent ccc61e0fb2
commit bee2844b64
58 changed files with 818 additions and 150 deletions
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26
content/base/src/nsGenericElement.cpp
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@@ -1289,28 +1289,6 @@ GetContainingBlockForClientRect(nsIFrame* aFrame)
return aFrame;
}
static double
RoundFloat(double aValue)
{
return floor(aValue + 0.5);
}
static void
SetClientRect(const nsRect& aLayoutRect, nsPresContext* aPresContext,
nsClientRect* aRect)
{
double scale = 65536.0;
// Round to the nearest 1/scale units. We choose scale so it can be represented
// exactly by machine floating point.
double scaleInv = 1/scale;
double t2pScaled = scale/aPresContext->AppUnitsPerCSSPixel();
double x = RoundFloat(aLayoutRect.x*t2pScaled)*scaleInv;
double y = RoundFloat(aLayoutRect.y*t2pScaled)*scaleInv;
aRect->SetRect(x, y,
RoundFloat(aLayoutRect.XMost()*t2pScaled)*scaleInv - x,
RoundFloat(aLayoutRect.YMost()*t2pScaled)*scaleInv - y);
}
NS_IMETHODIMP
nsNSElementTearoff::GetBoundingClientRect(nsIDOMClientRect** aResult)
{
@@ -1330,7 +1308,7 @@ nsNSElementTearoff::GetBoundingClientRect(nsIDOMClientRect** aResult)
nsPresContext* presContext = frame->PresContext();
nsRect r = nsLayoutUtils::GetAllInFlowRectsUnion(frame,
GetContainingBlockForClientRect(frame));
SetClientRect(r, presContext, rect);
rect->SetLayoutRect(r, presContext);
return NS_OK;
}
@@ -1350,7 +1328,7 @@ struct RectListBuilder : public nsLayoutUtils::RectCallback {
return;
}
SetClientRect(aRect, mPresContext, rect);
rect->SetLayoutRect(aRect, mPresContext);
mRectList->Append(rect);
}
};