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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 WebCore;
     45 using namespace blink;
     46 
     47 namespace {
     48 
     49 class MockGraphicsLayerClient : public GraphicsLayerClient {
     50 public:
     51     virtual void notifyAnimationStarted(const GraphicsLayer*, double monotonicTime) OVERRIDE { }
     52     virtual void paintContents(const GraphicsLayer*, GraphicsContext&, GraphicsLayerPaintingPhase, const IntRect& inClip) OVERRIDE { }
     53     virtual String debugName(const GraphicsLayer*) OVERRIDE { return String(); }
     54 };
     55 
     56 class GraphicsLayerForTesting : public GraphicsLayer {
     57 public:
     58     explicit GraphicsLayerForTesting(GraphicsLayerClient* client)
     59         : GraphicsLayer(client) { };
     60 
     61     virtual blink::WebLayer* contentsLayer() const { return GraphicsLayer::contentsLayer(); }
     62 };
     63 
     64 class GraphicsLayerTest : public testing::Test {
     65 public:
     66     GraphicsLayerTest()
     67     {
     68         m_clipLayer = adoptPtr(new GraphicsLayerForTesting(&m_client));
     69         m_graphicsLayer = adoptPtr(new GraphicsLayerForTesting(&m_client));
     70         m_clipLayer->addChild(m_graphicsLayer.get());
     71         m_graphicsLayer->platformLayer()->setScrollClipLayer(
     72             m_clipLayer->platformLayer());
     73         m_platformLayer = m_graphicsLayer->platformLayer();
     74         m_layerTreeView = adoptPtr(Platform::current()->unitTestSupport()->createLayerTreeViewForTesting());
     75         ASSERT(m_layerTreeView);
     76         m_layerTreeView->setRootLayer(*m_clipLayer->platformLayer());
     77         m_layerTreeView->registerViewportLayers(
     78             m_clipLayer->platformLayer(), m_graphicsLayer->platformLayer(), 0);
     79         m_layerTreeView->setViewportSize(WebSize(1, 1));
     80     }
     81 
     82     virtual ~GraphicsLayerTest()
     83     {
     84         m_graphicsLayer.clear();
     85         m_layerTreeView.clear();
     86     }
     87 
     88 protected:
     89     WebLayer* m_platformLayer;
     90     OwnPtr<GraphicsLayerForTesting> m_graphicsLayer;
     91     OwnPtr<GraphicsLayerForTesting> m_clipLayer;
     92 
     93 private:
     94     OwnPtr<WebLayerTreeView> m_layerTreeView;
     95     MockGraphicsLayerClient m_client;
     96 };
     97 
     98 TEST_F(GraphicsLayerTest, updateLayerShouldFlattenTransformWithAnimations)
     99 {
    100     ASSERT_FALSE(m_platformLayer->hasActiveAnimation());
    101 
    102     OwnPtr<WebFloatAnimationCurve> curve = adoptPtr(Platform::current()->compositorSupport()->createFloatAnimationCurve());
    103     curve->add(WebFloatKeyframe(0.0, 0.0));
    104     OwnPtr<WebAnimation> floatAnimation(adoptPtr(Platform::current()->compositorSupport()->createAnimation(*curve, WebAnimation::TargetPropertyOpacity)));
    105     int animationId = floatAnimation->id();
    106     ASSERT_TRUE(m_platformLayer->addAnimation(floatAnimation.leakPtr()));
    107 
    108     ASSERT_TRUE(m_platformLayer->hasActiveAnimation());
    109 
    110     m_graphicsLayer->setShouldFlattenTransform(false);
    111 
    112     m_platformLayer = m_graphicsLayer->platformLayer();
    113     ASSERT_TRUE(m_platformLayer);
    114 
    115     ASSERT_TRUE(m_platformLayer->hasActiveAnimation());
    116     m_platformLayer->removeAnimation(animationId);
    117     ASSERT_FALSE(m_platformLayer->hasActiveAnimation());
    118 
    119     m_graphicsLayer->setShouldFlattenTransform(true);
    120 
    121     m_platformLayer = m_graphicsLayer->platformLayer();
    122     ASSERT_TRUE(m_platformLayer);
    123 
    124     ASSERT_FALSE(m_platformLayer->hasActiveAnimation());
    125 }
    126 
    127 class FakeScrollableArea : public ScrollableArea {
    128 public:
    129     virtual bool isActive() const OVERRIDE { return false; }
    130     virtual int scrollSize(ScrollbarOrientation) const OVERRIDE { return 100; }
    131     virtual bool isScrollCornerVisible() const OVERRIDE { return false; }
    132     virtual IntRect scrollCornerRect() const OVERRIDE { return IntRect(); }
    133     virtual int visibleWidth() const OVERRIDE { return 10; }
    134     virtual int visibleHeight() const OVERRIDE { return 10; }
    135     virtual IntSize contentsSize() const OVERRIDE { return IntSize(100, 100); }
    136     virtual bool scrollbarsCanBeActive() const OVERRIDE { return false; }
    137     virtual IntRect scrollableAreaBoundingBox() const OVERRIDE { return IntRect(); }
    138     virtual void invalidateScrollbarRect(Scrollbar*, const IntRect&) OVERRIDE { }
    139     virtual void invalidateScrollCornerRect(const IntRect&) OVERRIDE { }
    140     virtual bool userInputScrollable(ScrollbarOrientation) const OVERRIDE { return true; }
    141     virtual bool shouldPlaceVerticalScrollbarOnLeft() const OVERRIDE { return false; }
    142     virtual int pageStep(ScrollbarOrientation) const OVERRIDE { return 0; }
    143     virtual IntPoint minimumScrollPosition() const OVERRIDE { return IntPoint(); }
    144     virtual IntPoint maximumScrollPosition() const OVERRIDE
    145     {
    146         return IntPoint(contentsSize().width() - visibleWidth(), contentsSize().height() - visibleHeight());
    147     }
    148 
    149     virtual void setScrollOffset(const IntPoint& scrollOffset) OVERRIDE { m_scrollPosition = scrollOffset; }
    150     virtual IntPoint scrollPosition() const OVERRIDE { return m_scrollPosition; }
    151 
    152 private:
    153     IntPoint m_scrollPosition;
    154 };
    155 
    156 TEST_F(GraphicsLayerTest, applyScrollToScrollableArea)
    157 {
    158     FakeScrollableArea scrollableArea;
    159     m_graphicsLayer->setScrollableArea(&scrollableArea, false);
    160 
    161     WebPoint scrollPosition(7, 9);
    162     m_platformLayer->setScrollPosition(scrollPosition);
    163     m_graphicsLayer->didScroll();
    164 
    165     EXPECT_EQ(scrollPosition, WebPoint(scrollableArea.scrollPosition()));
    166 }
    167 
    168 } // namespace
    169