FrameMetrics GetPinchableFrameMetrics()
{
FrameMetrics fm;
fm.SetCompositionBounds(ParentLayerRect(200, 200, 100, 200));
fm.SetScrollableRect(CSSRect(0, 0, 980, 1000));
fm.SetScrollOffset(CSSPoint(300, 300));
fm.SetZoom(CSSToParentLayerScale2D(2.0, 2.0));
// APZC only allows zooming on the root scrollable frame.
fm.SetIsRootContent(true);
// the visible area of the document in CSS pixels is x=300 y=300 w=50 h=100
return fm;
}
TEST_F(APZCBasicTester, Overzoom) {
// the visible area of the document in CSS pixels is x=10 y=0 w=100 h=100
FrameMetrics fm;
fm.SetCompositionBounds(ParentLayerRect(0, 0, 100, 100));
fm.SetScrollableRect(CSSRect(0, 0, 125, 150));
fm.SetScrollOffset(CSSPoint(10, 0));
fm.SetZoom(CSSToParentLayerScale2D(1.0, 1.0));
fm.SetIsRootContent(true);
apzc->SetFrameMetrics(fm);
MakeApzcZoomable();
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(1);
PinchWithPinchInputAndCheckStatus(apzc, ScreenIntPoint(50, 50), 0.5, true);
fm = apzc->GetFrameMetrics();
EXPECT_EQ(0.8f, fm.GetZoom().ToScaleFactor().scale);
// bug 936721 - PGO builds introduce rounding error so
// use a fuzzy match instead
EXPECT_LT(std::abs(fm.GetScrollOffset().x), 1e-5);
EXPECT_LT(std::abs(fm.GetScrollOffset().y), 1e-5);
}