// Tests that scrolling the viewport when the layout viewport is
// !userInputScrollable (as happens when overflow:hidden is set) works
// correctly, that is, the visual viewport can scroll, but not the layout.
TEST_F(RootFrameViewportTest, UserInputScrollable) {
IntSize viewportSize(100, 150);
RootFrameViewStub* layoutViewport =
RootFrameViewStub::create(viewportSize, IntSize(200, 300));
VisualViewportStub* visualViewport =
VisualViewportStub::create(viewportSize, viewportSize);
ScrollableArea* rootFrameViewport =
RootFrameViewport::create(*visualViewport, *layoutViewport);
visualViewport->setScale(2);
// Disable just the layout viewport's horizontal scrolling, the
// RootFrameViewport should remain scrollable overall.
layoutViewport->setUserInputScrollable(false, true);
visualViewport->setUserInputScrollable(true, true);
EXPECT_TRUE(rootFrameViewport->userInputScrollable(HorizontalScrollbar));
EXPECT_TRUE(rootFrameViewport->userInputScrollable(VerticalScrollbar));
// Layout viewport shouldn't scroll since it's not horizontally scrollable,
// but visual viewport should.
rootFrameViewport->userScroll(ScrollByPixel, FloatSize(300, 0));
EXPECT_SIZE_EQ(ScrollOffset(0, 0), layoutViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(50, 0), visualViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(50, 0), rootFrameViewport->getScrollOffset());
// Vertical scrolling should be unaffected.
rootFrameViewport->userScroll(ScrollByPixel, FloatSize(0, 300));
EXPECT_SIZE_EQ(ScrollOffset(0, 150), layoutViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(50, 75), visualViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(50, 225), rootFrameViewport->getScrollOffset());
// Try the same checks as above but for the vertical direction.
// ===============================================
rootFrameViewport->setScrollOffset(ScrollOffset(), ProgrammaticScroll);
// Disable just the layout viewport's vertical scrolling, the
// RootFrameViewport should remain scrollable overall.
layoutViewport->setUserInputScrollable(true, false);
visualViewport->setUserInputScrollable(true, true);
EXPECT_TRUE(rootFrameViewport->userInputScrollable(HorizontalScrollbar));
EXPECT_TRUE(rootFrameViewport->userInputScrollable(VerticalScrollbar));
// Layout viewport shouldn't scroll since it's not vertically scrollable,
// but visual viewport should.
rootFrameViewport->userScroll(ScrollByPixel, FloatSize(0, 300));
EXPECT_SIZE_EQ(ScrollOffset(0, 0), layoutViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 75), visualViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 75), rootFrameViewport->getScrollOffset());
// Horizontal scrolling should be unaffected.
rootFrameViewport->userScroll(ScrollByPixel, FloatSize(300, 0));
EXPECT_SIZE_EQ(ScrollOffset(100, 0), layoutViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(50, 75), visualViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(150, 75), rootFrameViewport->getScrollOffset());
}
// Tests that scrolls on the root frame scroll the visual viewport before
// trying to scroll the layout viewport.
TEST_F(RootFrameViewportTest, ViewportScrollOrder) {
IntSize viewportSize(100, 100);
RootFrameViewStub* layoutViewport =
RootFrameViewStub::create(viewportSize, IntSize(200, 300));
VisualViewportStub* visualViewport =
VisualViewportStub::create(viewportSize, viewportSize);
ScrollableArea* rootFrameViewport =
RootFrameViewport::create(*visualViewport, *layoutViewport);
visualViewport->setScale(2);
rootFrameViewport->setScrollOffset(ScrollOffset(40, 40), UserScroll);
EXPECT_SIZE_EQ(ScrollOffset(40, 40), visualViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 0), layoutViewport->getScrollOffset());
rootFrameViewport->setScrollOffset(ScrollOffset(60, 60), ProgrammaticScroll);
EXPECT_SIZE_EQ(ScrollOffset(50, 50), visualViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(10, 10), layoutViewport->getScrollOffset());
}
// Make sure scrolls using the scroll animator (scroll(), setScrollOffset())
// work correctly when one of the subviewports is explicitly scrolled without
// using the // RootFrameViewport interface.
TEST_F(RootFrameViewportTest, TestScrollAnimatorUpdatedBeforeScroll) {
IntSize viewportSize(100, 150);
RootFrameViewStub* layoutViewport =
RootFrameViewStub::create(viewportSize, IntSize(200, 300));
VisualViewportStub* visualViewport =
VisualViewportStub::create(viewportSize, viewportSize);
ScrollableArea* rootFrameViewport =
RootFrameViewport::create(*visualViewport, *layoutViewport);
visualViewport->setScale(2);
visualViewport->setScrollOffset(ScrollOffset(50, 75), ProgrammaticScroll);
EXPECT_SIZE_EQ(ScrollOffset(50, 75), rootFrameViewport->getScrollOffset());
// If the scroll animator doesn't update, it will still think it's at (0, 0)
// and so it may early exit.
rootFrameViewport->setScrollOffset(ScrollOffset(0, 0), ProgrammaticScroll);
EXPECT_SIZE_EQ(ScrollOffset(0, 0), rootFrameViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 0), visualViewport->getScrollOffset());
// Try again for userScroll()
visualViewport->setScrollOffset(ScrollOffset(50, 75), ProgrammaticScroll);
EXPECT_SIZE_EQ(ScrollOffset(50, 75), rootFrameViewport->getScrollOffset());
rootFrameViewport->userScroll(ScrollByPixel, FloatSize(-50, 0));
EXPECT_SIZE_EQ(ScrollOffset(0, 75), rootFrameViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 75), visualViewport->getScrollOffset());
// Make sure the layout viewport is also accounted for.
rootFrameViewport->setScrollOffset(ScrollOffset(0, 0), ProgrammaticScroll);
layoutViewport->setScrollOffset(ScrollOffset(100, 150), ProgrammaticScroll);
EXPECT_SIZE_EQ(ScrollOffset(100, 150), rootFrameViewport->getScrollOffset());
rootFrameViewport->userScroll(ScrollByPixel, FloatSize(-100, 0));
EXPECT_SIZE_EQ(ScrollOffset(0, 150), rootFrameViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 150), layoutViewport->getScrollOffset());
}
// Tests that the setScrollOffset method works correctly with both viewports.
TEST_F(RootFrameViewportTest, SetScrollOffset) {
IntSize viewportSize(500, 500);
RootFrameViewStub* layoutViewport =
RootFrameViewStub::create(viewportSize, IntSize(1000, 2000));
VisualViewportStub* visualViewport =
VisualViewportStub::create(viewportSize, viewportSize);
ScrollableArea* rootFrameViewport =
RootFrameViewport::create(*visualViewport, *layoutViewport);
visualViewport->setScale(2);
// Ensure that the visual viewport scrolls first.
rootFrameViewport->setScrollOffset(ScrollOffset(100, 100),
ProgrammaticScroll);
EXPECT_SIZE_EQ(ScrollOffset(100, 100), visualViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 0), layoutViewport->getScrollOffset());
// Scroll to the visual viewport's extent, the layout viewport should scroll
// the remainder.
rootFrameViewport->setScrollOffset(ScrollOffset(300, 400),
ProgrammaticScroll);
EXPECT_SIZE_EQ(ScrollOffset(250, 250), visualViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(50, 150), layoutViewport->getScrollOffset());
// Only the layout viewport should scroll further. Make sure it doesn't scroll
// out of bounds.
rootFrameViewport->setScrollOffset(ScrollOffset(780, 1780),
ProgrammaticScroll);
EXPECT_SIZE_EQ(ScrollOffset(250, 250), visualViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(500, 1500), layoutViewport->getScrollOffset());
// Scroll all the way back.
rootFrameViewport->setScrollOffset(ScrollOffset(0, 0), ProgrammaticScroll);
EXPECT_SIZE_EQ(ScrollOffset(0, 0), visualViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 0), layoutViewport->getScrollOffset());
}
// Tests that the visible rect (i.e. visual viewport rect) is correctly
// calculated, taking into account both viewports and page scale.
TEST_F(RootFrameViewportTest, VisibleContentRect) {
IntSize viewportSize(500, 401);
RootFrameViewStub* layoutViewport =
RootFrameViewStub::create(viewportSize, IntSize(1000, 2000));
VisualViewportStub* visualViewport =
VisualViewportStub::create(viewportSize, viewportSize);
ScrollableArea* rootFrameViewport =
RootFrameViewport::create(*visualViewport, *layoutViewport);
rootFrameViewport->setScrollOffset(ScrollOffset(100, 75), ProgrammaticScroll);
EXPECT_POINT_EQ(IntPoint(100, 75),
rootFrameViewport->visibleContentRect().location());
EXPECT_SIZE_EQ(ScrollOffset(500, 401),
rootFrameViewport->visibleContentRect().size());
visualViewport->setScale(2);
EXPECT_POINT_EQ(IntPoint(100, 75),
rootFrameViewport->visibleContentRect().location());
EXPECT_SIZE_EQ(ScrollOffset(250, 201),
rootFrameViewport->visibleContentRect().size());
}
// Test that the scrollIntoView correctly scrolls the main frame
// and visual viewport such that the given rect is centered in the viewport.
TEST_F(RootFrameViewportTest, ScrollIntoView) {
IntSize viewportSize(100, 150);
RootFrameViewStub* layoutViewport =
RootFrameViewStub::create(viewportSize, IntSize(200, 300));
VisualViewportStub* visualViewport =
VisualViewportStub::create(viewportSize, viewportSize);
ScrollableArea* rootFrameViewport =
RootFrameViewport::create(*visualViewport, *layoutViewport);
// Test that the visual viewport is scrolled if the viewport has been
// resized (as is the case when the ChromeOS keyboard comes up) but not
// scaled.
visualViewport->setViewportSize(IntSize(100, 100));
rootFrameViewport->scrollIntoView(LayoutRect(100, 250, 50, 50),
ScrollAlignment::alignToEdgeIfNeeded,
ScrollAlignment::alignToEdgeIfNeeded);
EXPECT_SIZE_EQ(ScrollOffset(50, 150), layoutViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 50), visualViewport->getScrollOffset());
rootFrameViewport->scrollIntoView(LayoutRect(25, 75, 50, 50),
ScrollAlignment::alignToEdgeIfNeeded,
ScrollAlignment::alignToEdgeIfNeeded);
EXPECT_SIZE_EQ(ScrollOffset(25, 75), layoutViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 0), visualViewport->getScrollOffset());
// Reset the visual viewport's size, scale the page, and repeat the test
visualViewport->setViewportSize(IntSize(100, 150));
visualViewport->setScale(2);
rootFrameViewport->setScrollOffset(ScrollOffset(), ProgrammaticScroll);
rootFrameViewport->scrollIntoView(LayoutRect(50, 75, 50, 75),
ScrollAlignment::alignToEdgeIfNeeded,
ScrollAlignment::alignToEdgeIfNeeded);
EXPECT_SIZE_EQ(ScrollOffset(0, 0), layoutViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(50, 75), visualViewport->getScrollOffset());
rootFrameViewport->scrollIntoView(LayoutRect(190, 290, 10, 10),
ScrollAlignment::alignToEdgeIfNeeded,
ScrollAlignment::alignToEdgeIfNeeded);
EXPECT_SIZE_EQ(ScrollOffset(100, 150), layoutViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(50, 75), visualViewport->getScrollOffset());
// Scrolling into view the viewport rect itself should be a no-op.
visualViewport->setViewportSize(IntSize(100, 100));
visualViewport->setScale(1.5f);
visualViewport->setScrollOffset(ScrollOffset(0, 10), ProgrammaticScroll);
layoutViewport->setScrollOffset(ScrollOffset(50, 50), ProgrammaticScroll);
rootFrameViewport->setScrollOffset(rootFrameViewport->getScrollOffset(),
ProgrammaticScroll);
rootFrameViewport->scrollIntoView(
LayoutRect(rootFrameViewport->visibleContentRect(ExcludeScrollbars)),
ScrollAlignment::alignToEdgeIfNeeded,
ScrollAlignment::alignToEdgeIfNeeded);
EXPECT_SIZE_EQ(ScrollOffset(50, 50), layoutViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 10), visualViewport->getScrollOffset());
rootFrameViewport->scrollIntoView(
LayoutRect(rootFrameViewport->visibleContentRect(ExcludeScrollbars)),
ScrollAlignment::alignCenterAlways, ScrollAlignment::alignCenterAlways);
EXPECT_SIZE_EQ(ScrollOffset(50, 50), layoutViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 10), visualViewport->getScrollOffset());
rootFrameViewport->scrollIntoView(
LayoutRect(rootFrameViewport->visibleContentRect(ExcludeScrollbars)),
ScrollAlignment::alignTopAlways, ScrollAlignment::alignTopAlways);
EXPECT_SIZE_EQ(ScrollOffset(50, 50), layoutViewport->getScrollOffset());
EXPECT_SIZE_EQ(ScrollOffset(0, 10), visualViewport->getScrollOffset());
}