1/* 2 * Copyright (C) 2010 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32 33#include <gtest/gtest.h> 34 35#include "DragImage.h" 36#include "Image.h" 37#include "NativeImageSkia.h" 38 39using namespace WebCore; 40 41namespace { 42 43class TestImage : public Image { 44public: 45 46 static PassRefPtr<TestImage> create(const IntSize& size) 47 { 48 return adoptRef(new TestImage(size)); 49 } 50 51 explicit TestImage(const IntSize& size) 52 : Image(0) 53 , m_size(size) 54 { 55 m_nativeImage = new NativeImageSkia(); 56 m_nativeImage->setConfig(SkBitmap::kARGB_8888_Config, 57 size.width(), size.height(), 0); 58 m_nativeImage->allocPixels(); 59 } 60 61 virtual ~TestImage() 62 { 63 delete m_nativeImage; 64 } 65 66 virtual IntSize size() const 67 { 68 return m_size; 69 } 70 71 virtual NativeImagePtr nativeImageForCurrentFrame() 72 { 73 if (m_size.isZero()) 74 return 0; 75 76 return m_nativeImage; 77 } 78 79 // Stub implementations of pure virtual Image functions. 80 virtual void destroyDecodedData(bool) 81 { 82 } 83 84 virtual unsigned int decodedSize() const 85 { 86 return 0u; 87 } 88 89 virtual void draw(WebCore::GraphicsContext*, const WebCore::FloatRect&, 90 const WebCore::FloatRect&, WebCore::ColorSpace, 91 WebCore::CompositeOperator) 92 { 93 } 94 95private: 96 97 IntSize m_size; 98 99 NativeImagePtr m_nativeImage; 100}; 101 102TEST(DragImageTest, NullHandling) 103{ 104 EXPECT_FALSE(createDragImageFromImage(0)); 105 106 deleteDragImage(0); 107 EXPECT_TRUE(dragImageSize(0).isZero()); 108 EXPECT_FALSE(scaleDragImage(0, FloatSize(0.5, 0.5))); 109 EXPECT_FALSE(dissolveDragImageToFraction(0, 0.5)); 110 EXPECT_FALSE(createDragImageFromImage(0)); 111 EXPECT_FALSE(createDragImageIconForCachedImage(0)); 112} 113 114TEST(DragImageTest, NonNullHandling) 115{ 116 RefPtr<TestImage> testImage(TestImage::create(IntSize(2, 2))); 117 DragImageRef dragImage = createDragImageFromImage(testImage.get()); 118 ASSERT_TRUE(dragImage); 119 120 dragImage = scaleDragImage(dragImage, FloatSize(0.5, 0.5)); 121 ASSERT_TRUE(dragImage); 122 IntSize size = dragImageSize(dragImage); 123 EXPECT_EQ(1, size.width()); 124 EXPECT_EQ(1, size.height()); 125 126 dragImage = dissolveDragImageToFraction(dragImage, 0.5); 127 ASSERT_TRUE(dragImage); 128 129 deleteDragImage(dragImage); 130} 131 132TEST(DragImageTest, CreateDragImage) 133{ 134 { 135 // Tests that the DrageImage implementation doesn't choke on null values 136 // of nativeImageForCurrentFrame(). 137 RefPtr<TestImage> testImage(TestImage::create(IntSize())); 138 EXPECT_FALSE(createDragImageFromImage(testImage.get())); 139 } 140 141 { 142 // Tests that the drag image is a deep copy. 143 RefPtr<TestImage> testImage(TestImage::create(IntSize(1, 1))); 144 DragImageRef dragImage = createDragImageFromImage(testImage.get()); 145 ASSERT_TRUE(dragImage); 146 SkAutoLockPixels lock1(*dragImage), lock2(*(testImage->nativeImageForCurrentFrame())); 147 EXPECT_NE(dragImage->getPixels(), testImage->nativeImageForCurrentFrame()->getPixels()); 148 } 149} 150 151} // anonymous namespace 152