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
39 using namespace WebCore;
40
41 namespace {
42
43 class TestImage : public Image {
44 public:
45
create(const IntSize & size)46 static PassRefPtr<TestImage> create(const IntSize& size)
47 {
48 return adoptRef(new TestImage(size));
49 }
50
TestImage(const IntSize & size)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
~TestImage()61 virtual ~TestImage()
62 {
63 delete m_nativeImage;
64 }
65
size() const66 virtual IntSize size() const
67 {
68 return m_size;
69 }
70
nativeImageForCurrentFrame()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.
destroyDecodedData(bool)80 virtual void destroyDecodedData(bool)
81 {
82 }
83
decodedSize() const84 virtual unsigned int decodedSize() const
85 {
86 return 0u;
87 }
88
draw(WebCore::GraphicsContext *,const WebCore::FloatRect &,const WebCore::FloatRect &,WebCore::ColorSpace,WebCore::CompositeOperator)89 virtual void draw(WebCore::GraphicsContext*, const WebCore::FloatRect&,
90 const WebCore::FloatRect&, WebCore::ColorSpace,
91 WebCore::CompositeOperator)
92 {
93 }
94
95 private:
96
97 IntSize m_size;
98
99 NativeImagePtr m_nativeImage;
100 };
101
TEST(DragImageTest,NullHandling)102 TEST(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
TEST(DragImageTest,NonNullHandling)114 TEST(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
TEST(DragImageTest,CreateDragImage)132 TEST(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