summaryrefslogtreecommitdiff
path: root/xfa/fde/css/cfde_cssstylesheet_unittest.cpp
blob: 1c50f65607a832ca59cf2054577bbf3ca35fd20d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
// Copyright 2017 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#include "xfa/fde/css/cfde_cssstylesheet.h"

#include <memory>
#include <vector>

#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/base/ptr_util.h"
#include "third_party/base/stl_util.h"
#include "xfa/fde/css/cfde_cssdeclaration.h"
#include "xfa/fde/css/cfde_cssenumvalue.h"
#include "xfa/fde/css/cfde_cssnumbervalue.h"
#include "xfa/fde/css/cfde_cssstylerule.h"
#include "xfa/fde/css/cfde_cssvaluelist.h"

class CFDE_CSSStyleSheetTest : public testing::Test {
 public:
  void SetUp() override {
    sheet_ = pdfium::MakeUnique<CFDE_CSSStyleSheet>();
    decl_ = nullptr;
  }

  void TearDown() override { decl_ = nullptr; }

  void LoadAndVerifyDecl(const FX_WCHAR* buf,
                         const std::vector<CFX_WideString>& selectors,
                         size_t decl_count) {
    ASSERT(sheet_);

    EXPECT_TRUE(sheet_->LoadBuffer(buf, FXSYS_wcslen(buf)));
    EXPECT_EQ(sheet_->CountRules(), 1);

    CFDE_CSSStyleRule* style = sheet_->GetRule(0);
    EXPECT_EQ(selectors.size(), style->CountSelectorLists());

    for (size_t i = 0; i < selectors.size(); i++) {
      uint32_t hash = FX_HashCode_GetW(selectors[i].AsStringC(), true);
      EXPECT_EQ(hash, style->GetSelectorList(i)->GetNameHash());
    }

    decl_ = style->GetDeclaration();
    EXPECT_EQ(decl_->PropertyCountForTesting(), decl_count);
  }

  void VerifyFloat(FDE_CSSProperty prop, float val, FDE_CSSNumberType type) {
    ASSERT(decl_);

    bool important;
    CFDE_CSSValue* v = decl_->GetProperty(prop, important);
    EXPECT_EQ(v->GetType(), FDE_CSSPrimitiveType::Number);
    EXPECT_EQ(static_cast<CFDE_CSSNumberValue*>(v)->Kind(), type);
    EXPECT_EQ(static_cast<CFDE_CSSNumberValue*>(v)->Value(), val);
  }

  void VerifyEnum(FDE_CSSProperty prop, FDE_CSSPropertyValue val) {
    ASSERT(decl_);

    bool important;
    CFDE_CSSValue* v = decl_->GetProperty(prop, important);
    EXPECT_EQ(v->GetType(), FDE_CSSPrimitiveType::Enum);
    EXPECT_EQ(static_cast<CFDE_CSSEnumValue*>(v)->Value(), val);
  }

  void VerifyList(FDE_CSSProperty prop,
                  std::vector<FDE_CSSPropertyValue> values) {
    ASSERT(decl_);

    bool important;
    CFDE_CSSValue* v = decl_->GetProperty(prop, important);
    CFDE_CSSValueList* list = static_cast<CFDE_CSSValueList*>(v);
    EXPECT_EQ(list->CountValues(), pdfium::CollectionSize<int32_t>(values));

    for (size_t i = 0; i < values.size(); i++) {
      CFDE_CSSValue* val = list->GetValue(i);
      EXPECT_EQ(val->GetType(), FDE_CSSPrimitiveType::Enum);
      EXPECT_EQ(static_cast<CFDE_CSSEnumValue*>(val)->Value(), values[i]);
    }
  }

  std::unique_ptr<CFDE_CSSStyleSheet> sheet_;
  CFDE_CSSDeclaration* decl_;
};

TEST_F(CFDE_CSSStyleSheetTest, ParseMultipleSelectors) {
  const FX_WCHAR* buf =
      L"a { border: 10px; }\nb { text-decoration: underline; }";
  EXPECT_TRUE(sheet_->LoadBuffer(buf, FXSYS_wcslen(buf)));
  EXPECT_EQ(2, sheet_->CountRules());

  CFDE_CSSStyleRule* style = sheet_->GetRule(0);
  EXPECT_EQ(1UL, style->CountSelectorLists());

  bool found_selector = false;
  uint32_t hash = FX_HashCode_GetW(L"a", true);
  for (size_t i = 0; i < style->CountSelectorLists(); i++) {
    if (style->GetSelectorList(i)->GetNameHash() == hash) {
      found_selector = true;
      break;
    }
  }
  EXPECT_TRUE(found_selector);

  decl_ = style->GetDeclaration();
  EXPECT_EQ(4UL, decl_->PropertyCountForTesting());

  VerifyFloat(FDE_CSSProperty::BorderLeftWidth, 10.0,
              FDE_CSSNumberType::Pixels);
  VerifyFloat(FDE_CSSProperty::BorderRightWidth, 10.0,
              FDE_CSSNumberType::Pixels);
  VerifyFloat(FDE_CSSProperty::BorderTopWidth, 10.0, FDE_CSSNumberType::Pixels);
  VerifyFloat(FDE_CSSProperty::BorderBottomWidth, 10.0,
              FDE_CSSNumberType::Pixels);

  style = sheet_->GetRule(1);
  EXPECT_EQ(1UL, style->CountSelectorLists());

  found_selector = false;
  hash = FX_HashCode_GetW(L"b", true);
  for (size_t i = 0; i < style->CountSelectorLists(); i++) {
    if (style->GetSelectorList(i)->GetNameHash() == hash) {
      found_selector = true;
      break;
    }
  }
  EXPECT_TRUE(found_selector);

  decl_ = style->GetDeclaration();
  EXPECT_EQ(1UL, decl_->PropertyCountForTesting());
  VerifyList(FDE_CSSProperty::TextDecoration,
             {FDE_CSSPropertyValue::Underline});
}

TEST_F(CFDE_CSSStyleSheetTest, ParseMultipleSelectorsCombined) {
  LoadAndVerifyDecl(L"a, b, c { border: 5px; }", {L"a", L"b", L"c"}, 4);
}

TEST_F(CFDE_CSSStyleSheetTest, ParseWithPseudo) {
  // TODO(dsinclair): I think this is wrong, as the selector just becomes
  // :before and we lose the a?
  LoadAndVerifyDecl(L"a:before { border: 10px; }", {L":before"}, 4);
}

TEST_F(CFDE_CSSStyleSheetTest, ParseWithSelectorsAndPseudo) {
  // TODO(dsinclair): I think this is wrong as we lose the b on the b:before
  LoadAndVerifyDecl(L"a, b:before, c { border: 1px; }",
                    {L"a", L":before", L"c"}, 4);
}

TEST_F(CFDE_CSSStyleSheetTest, ParseBorder) {
  LoadAndVerifyDecl(L"a { border: 5px; }", {L"a"}, 4);
  VerifyFloat(FDE_CSSProperty::BorderLeftWidth, 5.0, FDE_CSSNumberType::Pixels);
  VerifyFloat(FDE_CSSProperty::BorderRightWidth, 5.0,
              FDE_CSSNumberType::Pixels);
  VerifyFloat(FDE_CSSProperty::BorderTopWidth, 5.0, FDE_CSSNumberType::Pixels);
  VerifyFloat(FDE_CSSProperty::BorderBottomWidth, 5.0,
              FDE_CSSNumberType::Pixels);
}

TEST_F(CFDE_CSSStyleSheetTest, ParseBorderFull) {
  LoadAndVerifyDecl(L"a { border: 5px solid red; }", {L"a"}, 4);
  VerifyFloat(FDE_CSSProperty::BorderLeftWidth, 5.0, FDE_CSSNumberType::Pixels);
  VerifyFloat(FDE_CSSProperty::BorderRightWidth, 5.0,
              FDE_CSSNumberType::Pixels);
  VerifyFloat(FDE_CSSProperty::BorderTopWidth, 5.0, FDE_CSSNumberType::Pixels);
  VerifyFloat(FDE_CSSProperty::BorderBottomWidth, 5.0,
              FDE_CSSNumberType::Pixels);
}

TEST_F(CFDE_CSSStyleSheetTest, ParseBorderLeft) {
  LoadAndVerifyDecl(L"a { border-left: 2.5pc; }", {L"a"}, 1);
  VerifyFloat(FDE_CSSProperty::BorderLeftWidth, 2.5, FDE_CSSNumberType::Picas);
}

TEST_F(CFDE_CSSStyleSheetTest, ParseBorderLeftThick) {
  LoadAndVerifyDecl(L"a { border-left: thick; }", {L"a"}, 1);
  VerifyEnum(FDE_CSSProperty::BorderLeftWidth, FDE_CSSPropertyValue::Thick);
}

TEST_F(CFDE_CSSStyleSheetTest, ParseBorderRight) {
  LoadAndVerifyDecl(L"a { border-right: 2.5pc; }", {L"a"}, 1);
  VerifyFloat(FDE_CSSProperty::BorderRightWidth, 2.5, FDE_CSSNumberType::Picas);
}

TEST_F(CFDE_CSSStyleSheetTest, ParseBorderTop) {
  LoadAndVerifyDecl(L"a { border-top: 2.5pc; }", {L"a"}, 1);
  VerifyFloat(FDE_CSSProperty::BorderTopWidth, 2.5, FDE_CSSNumberType::Picas);
}

TEST_F(CFDE_CSSStyleSheetTest, ParseBorderBottom) {
  LoadAndVerifyDecl(L"a { border-bottom: 2.5pc; }", {L"a"}, 1);
  VerifyFloat(FDE_CSSProperty::BorderBottomWidth, 2.5,
              FDE_CSSNumberType::Picas);
}