TEST_F(PaintPropertyTreeBuilderTest, PositionAndScroll)
{
loadTestData("position-and-scroll.html");
Element* scroller = document().getElementById("scroller");
scroller->scrollTo(0, 100);
FrameView* frameView = document().view();
frameView->updateAllLifecyclePhases();
ObjectPaintProperties* scrollerProperties = scroller->layoutObject()->objectPaintProperties();
EXPECT_EQ(TransformationMatrix().translate(0, -100), scrollerProperties->scrollTranslation()->matrix());
EXPECT_EQ(frameView->scrollTranslation(), scrollerProperties->scrollTranslation()->parent());
// The relative-positioned element should have accumulated box offset (exclude scrolling),
// and should be affected by ancestor scroll transforms.
Element* relPos = document().getElementById("rel-pos");
ObjectPaintProperties* relPosProperties = relPos->layoutObject()->objectPaintProperties();
EXPECT_EQ(TransformationMatrix().translate(680, 1120), relPosProperties->paintOffsetTranslation()->matrix());
EXPECT_EQ(scrollerProperties->scrollTranslation(), relPosProperties->paintOffsetTranslation()->parent());
// The absolute-positioned element should not be affected by non-positioned scroller at all.
Element* absPos = document().getElementById("abs-pos");
ObjectPaintProperties* absPosProperties = absPos->layoutObject()->objectPaintProperties();
EXPECT_EQ(TransformationMatrix().translate(123, 456), absPosProperties->paintOffsetTranslation()->matrix());
EXPECT_EQ(frameView->scrollTranslation(), absPosProperties->paintOffsetTranslation()->parent());
}
TEST_F(PaintPropertyTreeBuilderTest, FixedPosition)
{
loadTestData("fixed-position.html");
FrameView* frameView = document().view();
// target1 is a fixed-position element inside an absolute-position scrolling element.
// It should be attached under the viewport to skip scrolling and offset of the parent.
Element* target1 = document().getElementById("target1");
ObjectPaintProperties* target1Properties = target1->layoutObject()->objectPaintProperties();
EXPECT_EQ(TransformationMatrix().translate(200, 150), target1Properties->paintOffsetTranslation()->matrix());
EXPECT_EQ(frameView->preTranslation(), target1Properties->paintOffsetTranslation()->parent());
EXPECT_EQ(target1Properties->paintOffsetTranslation(), target1Properties->overflowClip()->localTransformSpace());
EXPECT_EQ(FloatRoundedRect(0, 0, 100, 100), target1Properties->overflowClip()->clipRect());
// Likewise, it inherits clip from the viewport, skipping overflow clip of the scroller.
EXPECT_EQ(frameView->contentClip(), target1Properties->overflowClip()->parent());
// target2 is a fixed-position element inside a transformed scrolling element.
// It should be attached under the scrolled box of the transformed element.
Element* target2 = document().getElementById("target2");
ObjectPaintProperties* target2Properties = target2->layoutObject()->objectPaintProperties();
Element* scroller = document().getElementById("scroller");
ObjectPaintProperties* scrollerProperties = scroller->layoutObject()->objectPaintProperties();
EXPECT_EQ(TransformationMatrix().translate(200, 150), target2Properties->paintOffsetTranslation()->matrix());
EXPECT_EQ(scrollerProperties->scrollTranslation(), target2Properties->paintOffsetTranslation()->parent());
EXPECT_EQ(target2Properties->paintOffsetTranslation(), target2Properties->overflowClip()->localTransformSpace());
EXPECT_EQ(FloatRoundedRect(0, 0, 100, 100), target2Properties->overflowClip()->clipRect());
EXPECT_EQ(scrollerProperties->overflowClip(), target2Properties->overflowClip()->parent());
}
// TODO(trchen): Settings::rootLayerScrolls cannot be switched after main frame being created.
// Need to set it during test setup. Besides that, the test still won't work because
// root layer scrolling mode is not compatible with SPv2 at this moment.
// (Duplicate display item ID for FrameView and LayoutView.)
TEST_F(PaintPropertyTreeBuilderTest, DISABLED_FrameScrollingRootLayerScrolls)
{
document().settings()->setRootLayerScrolls(true);
setBodyInnerHTML("<style> body { height: 10000px; } </style>");
document().domWindow()->scrollTo(0, 100);
FrameView* frameView = document().view();
frameView->updateAllLifecyclePhases();
EXPECT_EQ(TransformationMatrix(), frameView->preTranslation()->matrix());
EXPECT_EQ(nullptr, frameView->preTranslation()->parent());
EXPECT_EQ(TransformationMatrix(), frameView->scrollTranslation()->matrix());
EXPECT_EQ(frameView->preTranslation(), frameView->scrollTranslation()->parent());
LayoutView* layoutView = document().layoutView();
ObjectPaintProperties* layoutViewProperties = layoutView->objectPaintProperties();
EXPECT_EQ(TransformationMatrix().translate(0, -100), layoutViewProperties->scrollTranslation()->matrix());
EXPECT_EQ(frameView->scrollTranslation(), layoutViewProperties->scrollTranslation()->parent());
}
TEST_F(PaintPropertyTreeBuilderTest, FixedPosition)
{
loadTestData("fixed-position.html");
// target1 is a fixed-position element inside an absolute-position scrolling element.
// It should be attached under the viewport to skip scrolling and offset of the parent.
Element* target1 = document().getElementById("target1");
ObjectPaintProperties* target1Properties = target1->layoutObject()->objectPaintProperties();
EXPECT_EQ(TransformationMatrix().translate(200, 150), target1Properties->paintOffsetTranslation()->matrix());
EXPECT_EQ(document().view()->preTranslation(), target1Properties->paintOffsetTranslation()->parent());
// target2 is a fixed-position element inside a transformed scrolling element.
// It should be attached under the scrolled box of the transformed element.
Element* target2 = document().getElementById("target2");
ObjectPaintProperties* target2Properties = target2->layoutObject()->objectPaintProperties();
Element* scroller = document().getElementById("scroller");
ObjectPaintProperties* scrollerProperties = scroller->layoutObject()->objectPaintProperties();
EXPECT_EQ(TransformationMatrix().translate(200, 150), target2Properties->paintOffsetTranslation()->matrix());
EXPECT_EQ(scrollerProperties->scrollTranslation(), target2Properties->paintOffsetTranslation()->parent());
}