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      1 /*
      2  * Copyright (C) 2012 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1.  Redistributions of source code must retain the above copyright
      8  *     notice, this list of conditions and the following disclaimer.
      9  * 2.  Redistributions in binary form must reproduce the above copyright
     10  *     notice, this list of conditions and the following disclaimer in the
     11  *     documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     16  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23  */
     24 
     25 #include "config.h"
     26 
     27 #include "platform/graphics/GraphicsLayer.h"
     28 
     29 #include "platform/scroll/ScrollableArea.h"
     30 #include "platform/transforms/Matrix3DTransformOperation.h"
     31 #include "platform/transforms/RotateTransformOperation.h"
     32 #include "platform/transforms/TranslateTransformOperation.h"
     33 #include "public/platform/Platform.h"
     34 #include "public/platform/WebCompositorSupport.h"
     35 #include "public/platform/WebFloatAnimationCurve.h"
     36 #include "public/platform/WebGraphicsContext3D.h"
     37 #include "public/platform/WebLayer.h"
     38 #include "public/platform/WebLayerTreeView.h"
     39 #include "public/platform/WebUnitTestSupport.h"
     40 #include "wtf/PassOwnPtr.h"
     41 
     42 #include <gtest/gtest.h>
     43 
     44 using namespace blink;
     45 
     46 namespace {
     47 
     48 class MockGraphicsLayerClient : public GraphicsLayerClient {
     49 public:
     50     virtual void notifyAnimationStarted(const GraphicsLayer*, double monotonicTime) OVERRIDE { }
     51     virtual void paintContents(const GraphicsLayer*, GraphicsContext&, GraphicsLayerPaintingPhase, const IntRect& inClip) OVERRIDE { }
     52     virtual String debugName(const GraphicsLayer*) OVERRIDE { return String(); }
     53 };
     54 
     55 class GraphicsLayerForTesting : public GraphicsLayer {
     56 public:
     57     explicit GraphicsLayerForTesting(GraphicsLayerClient* client)
     58         : GraphicsLayer(client) { };
     59 
     60     virtual WebLayer* contentsLayer() const { return GraphicsLayer::contentsLayer(); }
     61 };
     62 
     63 class GraphicsLayerTest : public testing::Test {
     64 public:
     65     GraphicsLayerTest()
     66     {
     67         m_clipLayer = adoptPtr(new GraphicsLayerForTesting(&m_client));
     68         m_graphicsLayer = adoptPtr(new GraphicsLayerForTesting(&m_client));
     69         m_clipLayer->addChild(m_graphicsLayer.get());
     70         m_graphicsLayer->platformLayer()->setScrollClipLayer(
     71             m_clipLayer->platformLayer());
     72         m_platformLayer = m_graphicsLayer->platformLayer();
     73         m_layerTreeView = adoptPtr(Platform::current()->unitTestSupport()->createLayerTreeViewForTesting());
     74         ASSERT(m_layerTreeView);
     75         m_layerTreeView->setRootLayer(*m_clipLayer->platformLayer());
     76         m_layerTreeView->registerViewportLayers(
     77             m_clipLayer->platformLayer(), m_graphicsLayer->platformLayer(), 0);
     78         m_layerTreeView->setViewportSize(WebSize(1, 1));
     79     }
     80 
     81     virtual ~GraphicsLayerTest()
     82     {
     83         m_graphicsLayer.clear();
     84         m_layerTreeView.clear();
     85     }
     86 
     87 protected:
     88     WebLayer* m_platformLayer;
     89     OwnPtr<GraphicsLayerForTesting> m_graphicsLayer;
     90     OwnPtr<GraphicsLayerForTesting> m_clipLayer;
     91 
     92 private:
     93     OwnPtr<WebLayerTreeView> m_layerTreeView;
     94     MockGraphicsLayerClient m_client;
     95 };
     96 
     97 TEST_F(GraphicsLayerTest, updateLayerShouldFlattenTransformWithAnimations)
     98 {
     99     ASSERT_FALSE(m_platformLayer->hasActiveAnimation());
    100 
    101     OwnPtr<WebFloatAnimationCurve> curve = adoptPtr(Platform::current()->compositorSupport()->createFloatAnimationCurve());
    102     curve->add(WebFloatKeyframe(0.0, 0.0));
    103     OwnPtr<WebCompositorAnimation> floatAnimation(adoptPtr(Platform::current()->compositorSupport()->createAnimation(*curve, WebCompositorAnimation::TargetPropertyOpacity)));
    104     int animationId = floatAnimation->id();
    105     ASSERT_TRUE(m_platformLayer->addAnimation(floatAnimation.leakPtr()));
    106 
    107     ASSERT_TRUE(m_platformLayer->hasActiveAnimation());
    108 
    109     m_graphicsLayer->setShouldFlattenTransform(false);
    110 
    111     m_platformLayer = m_graphicsLayer->platformLayer();
    112     ASSERT_TRUE(m_platformLayer);
    113 
    114     ASSERT_TRUE(m_platformLayer->hasActiveAnimation());
    115     m_platformLayer->removeAnimation(animationId);
    116     ASSERT_FALSE(m_platformLayer->hasActiveAnimation());
    117 
    118     m_graphicsLayer->setShouldFlattenTransform(true);
    119 
    120     m_platformLayer = m_graphicsLayer->platformLayer();
    121     ASSERT_TRUE(m_platformLayer);
    122 
    123     ASSERT_FALSE(m_platformLayer->hasActiveAnimation());
    124 }
    125 
    126 class FakeScrollableArea : public ScrollableArea {
    127 public:
    128     virtual bool isActive() const OVERRIDE { return false; }
    129     virtual int scrollSize(ScrollbarOrientation) const OVERRIDE { return 100; }
    130     virtual bool isScrollCornerVisible() const OVERRIDE { return false; }
    131     virtual IntRect scrollCornerRect() const OVERRIDE { return IntRect(); }
    132     virtual int visibleWidth() const OVERRIDE { return 10; }
    133     virtual int visibleHeight() const OVERRIDE { return 10; }
    134     virtual IntSize contentsSize() const OVERRIDE { return IntSize(100, 100); }
    135     virtual bool scrollbarsCanBeActive() const OVERRIDE { return false; }
    136     virtual IntRect scrollableAreaBoundingBox() const OVERRIDE { return IntRect(); }
    137     virtual void invalidateScrollbarRect(Scrollbar*, const IntRect&) OVERRIDE { }
    138     virtual void invalidateScrollCornerRect(const IntRect&) OVERRIDE { }
    139     virtual bool userInputScrollable(ScrollbarOrientation) const OVERRIDE { return true; }
    140     virtual bool shouldPlaceVerticalScrollbarOnLeft() const OVERRIDE { return false; }
    141     virtual int pageStep(ScrollbarOrientation) const OVERRIDE { return 0; }
    142     virtual IntPoint minimumScrollPosition() const OVERRIDE { return IntPoint(); }
    143     virtual IntPoint maximumScrollPosition() const OVERRIDE
    144     {
    145         return IntPoint(contentsSize().width() - visibleWidth(), contentsSize().height() - visibleHeight());
    146     }
    147 
    148     virtual void setScrollOffset(const IntPoint& scrollOffset) OVERRIDE { m_scrollPosition = scrollOffset; }
    149     virtual IntPoint scrollPosition() const OVERRIDE { return m_scrollPosition; }
    150 
    151 private:
    152     IntPoint m_scrollPosition;
    153 };
    154 
    155 TEST_F(GraphicsLayerTest, applyScrollToScrollableArea)
    156 {
    157     FakeScrollableArea scrollableArea;
    158     m_graphicsLayer->setScrollableArea(&scrollableArea, false);
    159 
    160     WebPoint scrollPosition(7, 9);
    161     m_platformLayer->setScrollPosition(scrollPosition);
    162     m_graphicsLayer->didScroll();
    163 
    164     EXPECT_EQ(scrollPosition, WebPoint(scrollableArea.scrollPosition()));
    165 }
    166 
    167 } // namespace
    168