1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/pickle.h" 6 #include "content/common/cursors/webcursor.h" 7 #include "testing/gtest/include/gtest/gtest.h" 8 #include "third_party/WebKit/public/platform/WebCursorInfo.h" 9 10 using blink::WebCursorInfo; 11 12 namespace content { 13 14 TEST(WebCursorTest, OKCursorSerialization) { 15 WebCursor custom_cursor; 16 // This is a valid custom cursor. 17 Pickle ok_custom_pickle; 18 // Type and hotspots. 19 ok_custom_pickle.WriteInt(WebCursorInfo::TypeCustom); 20 ok_custom_pickle.WriteInt(0); 21 ok_custom_pickle.WriteInt(0); 22 // X & Y 23 ok_custom_pickle.WriteInt(1); 24 ok_custom_pickle.WriteInt(1); 25 // Scale 26 ok_custom_pickle.WriteFloat(1.0); 27 // Data len including enough data for a 1x1 image. 28 ok_custom_pickle.WriteInt(4); 29 ok_custom_pickle.WriteUInt32(0); 30 // Custom Windows message. 31 ok_custom_pickle.WriteUInt32(0); 32 PickleIterator iter(ok_custom_pickle); 33 EXPECT_TRUE(custom_cursor.Deserialize(&iter)); 34 } 35 36 TEST(WebCursorTest, BrokenCursorSerialization) { 37 WebCursor custom_cursor; 38 // This custom cursor has not been send with enough data. 39 Pickle short_custom_pickle; 40 // Type and hotspots. 41 short_custom_pickle.WriteInt(WebCursorInfo::TypeCustom); 42 short_custom_pickle.WriteInt(0); 43 short_custom_pickle.WriteInt(0); 44 // X & Y 45 short_custom_pickle.WriteInt(1); 46 short_custom_pickle.WriteInt(1); 47 // Scale 48 short_custom_pickle.WriteFloat(1.0); 49 // Data len not including enough data for a 1x1 image. 50 short_custom_pickle.WriteInt(3); 51 short_custom_pickle.WriteUInt32(0); 52 PickleIterator iter(short_custom_pickle); 53 EXPECT_FALSE(custom_cursor.Deserialize(&iter)); 54 55 // This custom cursor has enough data but is too big. 56 Pickle large_custom_pickle; 57 // Type and hotspots. 58 large_custom_pickle.WriteInt(WebCursorInfo::TypeCustom); 59 large_custom_pickle.WriteInt(0); 60 large_custom_pickle.WriteInt(0); 61 // X & Y 62 static const int kTooBigSize = 4096 + 1; 63 large_custom_pickle.WriteInt(kTooBigSize); 64 large_custom_pickle.WriteInt(1); 65 // Scale 66 large_custom_pickle.WriteFloat(1.0); 67 // Data len including enough data for a 4097x1 image. 68 large_custom_pickle.WriteInt(kTooBigSize * 4); 69 for (int i = 0; i < kTooBigSize; ++i) 70 large_custom_pickle.WriteUInt32(0); 71 iter = PickleIterator(large_custom_pickle); 72 EXPECT_FALSE(custom_cursor.Deserialize(&iter)); 73 74 // This custom cursor uses negative lengths. 75 Pickle neg_custom_pickle; 76 // Type and hotspots. 77 neg_custom_pickle.WriteInt(WebCursorInfo::TypeCustom); 78 neg_custom_pickle.WriteInt(0); 79 neg_custom_pickle.WriteInt(0); 80 // X & Y 81 neg_custom_pickle.WriteInt(-1); 82 neg_custom_pickle.WriteInt(-1); 83 // Scale 84 neg_custom_pickle.WriteFloat(1.0); 85 // Data len including enough data for a 1x1 image. 86 neg_custom_pickle.WriteInt(4); 87 neg_custom_pickle.WriteUInt32(0); 88 // Custom Windows message. 89 neg_custom_pickle.WriteUInt32(0); 90 iter = PickleIterator(neg_custom_pickle); 91 EXPECT_FALSE(custom_cursor.Deserialize(&iter)); 92 93 // This custom cursor uses zero scale. 94 Pickle scale_zero_custom_pickle; 95 // Type and hotspots. 96 scale_zero_custom_pickle.WriteInt(WebCursorInfo::TypeCustom); 97 scale_zero_custom_pickle.WriteInt(0); 98 scale_zero_custom_pickle.WriteInt(0); 99 // X & Y 100 scale_zero_custom_pickle.WriteInt(1); 101 scale_zero_custom_pickle.WriteInt(1); 102 // Scale 103 scale_zero_custom_pickle.WriteFloat(0); 104 // Data len including enough data for a 1x1 image. 105 scale_zero_custom_pickle.WriteInt(4); 106 scale_zero_custom_pickle.WriteUInt32(0); 107 // Custom Windows message. 108 scale_zero_custom_pickle.WriteUInt32(0); 109 iter = PickleIterator(scale_zero_custom_pickle); 110 EXPECT_FALSE(custom_cursor.Deserialize(&iter)); 111 112 // This custom cursor uses tiny scale. 113 Pickle scale_tiny_custom_pickle; 114 // Type and hotspots. 115 scale_tiny_custom_pickle.WriteInt(WebCursorInfo::TypeCustom); 116 scale_tiny_custom_pickle.WriteInt(0); 117 scale_tiny_custom_pickle.WriteInt(0); 118 // X & Y 119 scale_tiny_custom_pickle.WriteInt(1); 120 scale_tiny_custom_pickle.WriteInt(1); 121 // Scale 122 scale_tiny_custom_pickle.WriteFloat(0.001f); 123 // Data len including enough data for a 1x1 image. 124 scale_tiny_custom_pickle.WriteInt(4); 125 scale_tiny_custom_pickle.WriteUInt32(0); 126 // Custom Windows message. 127 scale_tiny_custom_pickle.WriteUInt32(0); 128 iter = PickleIterator(scale_tiny_custom_pickle); 129 EXPECT_FALSE(custom_cursor.Deserialize(&iter)); 130 } 131 132 TEST(WebCursorTest, ClampHotspot) { 133 WebCursor custom_cursor; 134 // This is a valid custom cursor. 135 Pickle ok_custom_pickle; 136 // Type and hotspots. 137 ok_custom_pickle.WriteInt(WebCursorInfo::TypeCustom); 138 // Hotspot is invalid --- outside the bounds of the image. 139 ok_custom_pickle.WriteInt(5); 140 ok_custom_pickle.WriteInt(5); 141 // X & Y 142 ok_custom_pickle.WriteInt(2); 143 ok_custom_pickle.WriteInt(2); 144 // Scale 145 ok_custom_pickle.WriteFloat(1.0); 146 // Data len including enough data for a 2x2 image. 147 ok_custom_pickle.WriteInt(4 * 4); 148 for (size_t i = 0; i < 4; i++) 149 ok_custom_pickle.WriteUInt32(0); 150 // Custom Windows message. 151 ok_custom_pickle.WriteUInt32(0); 152 PickleIterator iter(ok_custom_pickle); 153 ASSERT_TRUE(custom_cursor.Deserialize(&iter)); 154 155 // Convert to WebCursorInfo, make sure the hotspot got clamped. 156 WebCursor::CursorInfo info; 157 custom_cursor.GetCursorInfo(&info); 158 EXPECT_EQ(gfx::Point(1, 1), info.hotspot); 159 160 // Set hotspot to an invalid point again, pipe back through WebCursor, 161 // and make sure the hotspot got clamped again. 162 info.hotspot = gfx::Point(-1, -1); 163 custom_cursor.InitFromCursorInfo(info); 164 custom_cursor.GetCursorInfo(&info); 165 EXPECT_EQ(gfx::Point(0, 0), info.hotspot); 166 } 167 168 TEST(WebCursorTest, EmptyImage) { 169 WebCursor custom_cursor; 170 Pickle broken_cursor_pickle; 171 broken_cursor_pickle.WriteInt(WebCursorInfo::TypeCustom); 172 // Hotspot is at origin 173 broken_cursor_pickle.WriteInt(0); 174 broken_cursor_pickle.WriteInt(0); 175 // X & Y are empty 176 broken_cursor_pickle.WriteInt(0); 177 broken_cursor_pickle.WriteInt(0); 178 // Scale 179 broken_cursor_pickle.WriteFloat(1.0); 180 // No data for the image since the size is 0. 181 broken_cursor_pickle.WriteInt(0); 182 // Custom Windows message. 183 broken_cursor_pickle.WriteInt(0); 184 185 // Make sure we can read this on all platforms; it is technicaally a valid 186 // cursor. 187 PickleIterator iter(broken_cursor_pickle); 188 ASSERT_TRUE(custom_cursor.Deserialize(&iter)); 189 } 190 191 TEST(WebCursorTest, Scale2) { 192 WebCursor custom_cursor; 193 // This is a valid custom cursor. 194 Pickle ok_custom_pickle; 195 // Type and hotspots. 196 ok_custom_pickle.WriteInt(WebCursorInfo::TypeCustom); 197 ok_custom_pickle.WriteInt(0); 198 ok_custom_pickle.WriteInt(0); 199 // X & Y 200 ok_custom_pickle.WriteInt(1); 201 ok_custom_pickle.WriteInt(1); 202 // Scale - 2 image pixels per UI pixel. 203 ok_custom_pickle.WriteFloat(2.0); 204 // Data len including enough data for a 1x1 image. 205 ok_custom_pickle.WriteInt(4); 206 ok_custom_pickle.WriteUInt32(0); 207 // Custom Windows message. 208 ok_custom_pickle.WriteUInt32(0); 209 PickleIterator iter(ok_custom_pickle); 210 EXPECT_TRUE(custom_cursor.Deserialize(&iter)); 211 } 212 213 } // namespace content 214
