root/Source/platform/graphics/GraphicsLayerTest.cpp

DEFINITIONS

1. notifyAnimationStarted
2. paintContents
3. debugName
4. contentsLayer
5. TEST_F
6. isActive
7. scrollSize
8. isScrollCornerVisible
9. scrollCornerRect
10. visibleWidth
11. visibleHeight
12. contentsSize
13. scrollbarsCanBeActive
14. scrollableAreaBoundingBox
15. invalidateScrollbarRect
16. invalidateScrollCornerRect
17. userInputScrollable
18. shouldPlaceVerticalScrollbarOnLeft
19. pageStep
20. minimumScrollPosition
21. maximumScrollPosition
22. setScrollOffset
23. scrollPosition
24. TEST_F

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"

#include "platform/graphics/GraphicsLayer.h"

#include "platform/scroll/ScrollableArea.h"
#include "platform/transforms/Matrix3DTransformOperation.h"
#include "platform/transforms/RotateTransformOperation.h"
#include "platform/transforms/TranslateTransformOperation.h"
#include "public/platform/Platform.h"
#include "public/platform/WebCompositorSupport.h"
#include "public/platform/WebFloatAnimationCurve.h"
#include "public/platform/WebGraphicsContext3D.h"
#include "public/platform/WebLayer.h"
#include "public/platform/WebLayerTreeView.h"
#include "public/platform/WebUnitTestSupport.h"
#include "wtf/PassOwnPtr.h"

#include <gtest/gtest.h>

using namespace WebCore;
using namespace blink;

namespace {

class MockGraphicsLayerClient : public GraphicsLayerClient {
public:
    virtual void notifyAnimationStarted(const GraphicsLayer*, double monotonicTime) OVERRIDE { }
    virtual void paintContents(const GraphicsLayer*, GraphicsContext&, GraphicsLayerPaintingPhase, const IntRect& inClip) OVERRIDE { }
    virtual String debugName(const GraphicsLayer*) OVERRIDE { return String(); }
};

class GraphicsLayerForTesting : public GraphicsLayer {
public:
    explicit GraphicsLayerForTesting(GraphicsLayerClient* client)
        : GraphicsLayer(client) { };

    virtual blink::WebLayer* contentsLayer() const { return GraphicsLayer::contentsLayer(); }
};

class GraphicsLayerTest : public testing::Test {
public:
    GraphicsLayerTest()
    {
        m_clipLayer = adoptPtr(new GraphicsLayerForTesting(&m_client));
        m_graphicsLayer = adoptPtr(new GraphicsLayerForTesting(&m_client));
        m_clipLayer->addChild(m_graphicsLayer.get());
        m_graphicsLayer->platformLayer()->setScrollClipLayer(
            m_clipLayer->platformLayer());
        m_platformLayer = m_graphicsLayer->platformLayer();
        m_layerTreeView = adoptPtr(Platform::current()->unitTestSupport()->createLayerTreeViewForTesting(WebUnitTestSupport::TestViewTypeUnitTest));
        ASSERT(m_layerTreeView);
        m_layerTreeView->setRootLayer(*m_clipLayer->platformLayer());
        m_layerTreeView->registerViewportLayers(
            m_clipLayer->platformLayer(), m_graphicsLayer->platformLayer(), 0);
        m_layerTreeView->setViewportSize(WebSize(1, 1), WebSize(1, 1));
    }

    virtual ~GraphicsLayerTest()
    {
        m_graphicsLayer.clear();
        m_layerTreeView.clear();
    }

protected:
    WebLayer* m_platformLayer;
    OwnPtr<GraphicsLayerForTesting> m_graphicsLayer;
    OwnPtr<GraphicsLayerForTesting> m_clipLayer;

private:
    OwnPtr<WebLayerTreeView> m_layerTreeView;
    MockGraphicsLayerClient m_client;
};

TEST_F(GraphicsLayerTest, updateLayerShouldFlattenTransformWithAnimations)
{
    ASSERT_FALSE(m_platformLayer->hasActiveAnimation());

    OwnPtr<WebFloatAnimationCurve> curve = adoptPtr(Platform::current()->compositorSupport()->createFloatAnimationCurve());
    curve->add(WebFloatKeyframe(0.0, 0.0));
    OwnPtr<WebAnimation> floatAnimation(adoptPtr(Platform::current()->compositorSupport()->createAnimation(*curve, WebAnimation::TargetPropertyOpacity)));
    int animationId = floatAnimation->id();
    ASSERT_TRUE(m_platformLayer->addAnimation(floatAnimation.leakPtr()));

    ASSERT_TRUE(m_platformLayer->hasActiveAnimation());

    m_graphicsLayer->setShouldFlattenTransform(false);

    m_platformLayer = m_graphicsLayer->platformLayer();
    ASSERT_TRUE(m_platformLayer);

    ASSERT_TRUE(m_platformLayer->hasActiveAnimation());
    m_platformLayer->removeAnimation(animationId);
    ASSERT_FALSE(m_platformLayer->hasActiveAnimation());

    m_graphicsLayer->setShouldFlattenTransform(true);

    m_platformLayer = m_graphicsLayer->platformLayer();
    ASSERT_TRUE(m_platformLayer);

    ASSERT_FALSE(m_platformLayer->hasActiveAnimation());
}

class FakeScrollableArea : public ScrollableArea {
public:
    virtual bool isActive() const OVERRIDE { return false; }
    virtual int scrollSize(ScrollbarOrientation) const OVERRIDE { return 100; }
    virtual bool isScrollCornerVisible() const OVERRIDE { return false; }
    virtual IntRect scrollCornerRect() const OVERRIDE { return IntRect(); }
    virtual int visibleWidth() const OVERRIDE { return 10; }
    virtual int visibleHeight() const OVERRIDE { return 10; }
    virtual IntSize contentsSize() const OVERRIDE { return IntSize(100, 100); }
    virtual bool scrollbarsCanBeActive() const OVERRIDE { return false; }
    virtual IntRect scrollableAreaBoundingBox() const OVERRIDE { return IntRect(); }
    virtual void invalidateScrollbarRect(Scrollbar*, const IntRect&) OVERRIDE { }
    virtual void invalidateScrollCornerRect(const IntRect&) OVERRIDE { }
    virtual bool userInputScrollable(ScrollbarOrientation) const OVERRIDE { return true; }
    virtual bool shouldPlaceVerticalScrollbarOnLeft() const OVERRIDE { return false; }
    virtual int pageStep(ScrollbarOrientation) const OVERRIDE { return 0; }
    virtual IntPoint minimumScrollPosition() const OVERRIDE { return IntPoint(); }
    virtual IntPoint maximumScrollPosition() const OVERRIDE
    {
        return IntPoint(contentsSize().width() - visibleWidth(), contentsSize().height() - visibleHeight());
    }

    virtual void setScrollOffset(const IntPoint& scrollOffset) OVERRIDE { m_scrollPosition = scrollOffset; }
    virtual IntPoint scrollPosition() const OVERRIDE { return m_scrollPosition; }

private:
    IntPoint m_scrollPosition;
};

TEST_F(GraphicsLayerTest, applyScrollToScrollableArea)
{
    FakeScrollableArea scrollableArea;
    m_graphicsLayer->setScrollableArea(&scrollableArea, false);

    WebPoint scrollPosition(7, 9);
    m_platformLayer->setScrollPosition(scrollPosition);
    m_graphicsLayer->didScroll();

    EXPECT_EQ(scrollPosition, WebPoint(scrollableArea.scrollPosition()));
}

} // namespace