| // 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 "core/fxcrt/css/cfx_cssstylesheet.h" |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "core/fxcrt/css/cfx_cssdeclaration.h" |
| #include "core/fxcrt/css/cfx_cssenumvalue.h" |
| #include "core/fxcrt/css/cfx_cssnumbervalue.h" |
| #include "core/fxcrt/css/cfx_cssstylerule.h" |
| #include "core/fxcrt/css/cfx_cssvaluelist.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/base/ptr_util.h" |
| #include "third_party/base/stl_util.h" |
| |
| class CFX_CSSStyleSheetTest : public testing::Test { |
| public: |
| void SetUp() override { |
| sheet_ = pdfium::MakeUnique<CFX_CSSStyleSheet>(); |
| decl_ = nullptr; |
| } |
| |
| void TearDown() override { decl_ = nullptr; } |
| |
| void LoadAndVerifyDecl(const wchar_t* buf, |
| const std::vector<WideString>& selectors, |
| size_t decl_count) { |
| ASSERT(sheet_); |
| |
| EXPECT_TRUE(sheet_->LoadBuffer(buf, wcslen(buf))); |
| EXPECT_EQ(sheet_->CountRules(), 1); |
| |
| CFX_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].AsStringView(), true); |
| EXPECT_EQ(hash, style->GetSelectorList(i)->GetNameHash()); |
| } |
| |
| decl_ = style->GetDeclaration(); |
| EXPECT_EQ(decl_->PropertyCountForTesting(), decl_count); |
| } |
| |
| void VerifyFloat(CFX_CSSProperty prop, float val, CFX_CSSNumberType type) { |
| ASSERT(decl_); |
| |
| bool important; |
| RetainPtr<CFX_CSSValue> v = decl_->GetProperty(prop, &important); |
| EXPECT_EQ(v->GetType(), CFX_CSSPrimitiveType::Number); |
| EXPECT_EQ(v.As<CFX_CSSNumberValue>()->Kind(), type); |
| EXPECT_EQ(v.As<CFX_CSSNumberValue>()->Value(), val); |
| } |
| |
| void VerifyEnum(CFX_CSSProperty prop, CFX_CSSPropertyValue val) { |
| ASSERT(decl_); |
| |
| bool important; |
| RetainPtr<CFX_CSSValue> v = decl_->GetProperty(prop, &important); |
| EXPECT_EQ(v->GetType(), CFX_CSSPrimitiveType::Enum); |
| EXPECT_EQ(v.As<CFX_CSSEnumValue>()->Value(), val); |
| } |
| |
| void VerifyList(CFX_CSSProperty prop, |
| std::vector<CFX_CSSPropertyValue> values) { |
| ASSERT(decl_); |
| |
| bool important; |
| RetainPtr<CFX_CSSValueList> list = |
| decl_->GetProperty(prop, &important).As<CFX_CSSValueList>(); |
| EXPECT_EQ(list->CountValues(), pdfium::CollectionSize<int32_t>(values)); |
| |
| for (size_t i = 0; i < values.size(); i++) { |
| RetainPtr<CFX_CSSValue> val = list->GetValue(i); |
| EXPECT_EQ(val->GetType(), CFX_CSSPrimitiveType::Enum); |
| EXPECT_EQ(val.As<CFX_CSSEnumValue>()->Value(), values[i]); |
| } |
| } |
| |
| std::unique_ptr<CFX_CSSStyleSheet> sheet_; |
| CFX_CSSDeclaration* decl_; |
| }; |
| |
| TEST_F(CFX_CSSStyleSheetTest, ParseMultipleSelectors) { |
| const wchar_t* buf = |
| L"a { border: 10px; }\nb { text-decoration: underline; }"; |
| EXPECT_TRUE(sheet_->LoadBuffer(buf, wcslen(buf))); |
| EXPECT_EQ(2, sheet_->CountRules()); |
| |
| CFX_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(CFX_CSSProperty::BorderLeftWidth, 10.0, |
| CFX_CSSNumberType::Pixels); |
| VerifyFloat(CFX_CSSProperty::BorderRightWidth, 10.0, |
| CFX_CSSNumberType::Pixels); |
| VerifyFloat(CFX_CSSProperty::BorderTopWidth, 10.0, CFX_CSSNumberType::Pixels); |
| VerifyFloat(CFX_CSSProperty::BorderBottomWidth, 10.0, |
| CFX_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(CFX_CSSProperty::TextDecoration, |
| {CFX_CSSPropertyValue::Underline}); |
| } |
| |
| TEST_F(CFX_CSSStyleSheetTest, ParseChildSelectors) { |
| const wchar_t* buf = L"a b c { border: 10px; }"; |
| EXPECT_TRUE(sheet_->LoadBuffer(buf, wcslen(buf))); |
| EXPECT_EQ(1, sheet_->CountRules()); |
| |
| CFX_CSSStyleRule* style = sheet_->GetRule(0); |
| EXPECT_EQ(1UL, style->CountSelectorLists()); |
| |
| auto* sel = style->GetSelectorList(0); |
| EXPECT_TRUE(sel != nullptr); |
| EXPECT_EQ(FX_HashCode_GetW(L"c", true), sel->GetNameHash()); |
| |
| sel = sel->GetNextSelector(); |
| EXPECT_TRUE(sel != nullptr); |
| EXPECT_EQ(FX_HashCode_GetW(L"b", true), sel->GetNameHash()); |
| |
| sel = sel->GetNextSelector(); |
| EXPECT_TRUE(sel != nullptr); |
| EXPECT_EQ(FX_HashCode_GetW(L"a", true), sel->GetNameHash()); |
| |
| sel = sel->GetNextSelector(); |
| EXPECT_TRUE(sel == nullptr); |
| |
| decl_ = style->GetDeclaration(); |
| EXPECT_EQ(4UL, decl_->PropertyCountForTesting()); |
| |
| VerifyFloat(CFX_CSSProperty::BorderLeftWidth, 10.0, |
| CFX_CSSNumberType::Pixels); |
| VerifyFloat(CFX_CSSProperty::BorderRightWidth, 10.0, |
| CFX_CSSNumberType::Pixels); |
| VerifyFloat(CFX_CSSProperty::BorderTopWidth, 10.0, CFX_CSSNumberType::Pixels); |
| VerifyFloat(CFX_CSSProperty::BorderBottomWidth, 10.0, |
| CFX_CSSNumberType::Pixels); |
| } |
| |
| TEST_F(CFX_CSSStyleSheetTest, ParseUnhandledSelectors) { |
| const wchar_t* buf = L"a > b { padding: 0; }"; |
| EXPECT_TRUE(sheet_->LoadBuffer(buf, wcslen(buf))); |
| EXPECT_EQ(0, sheet_->CountRules()); |
| |
| buf = L"a[first] { padding: 0; }"; |
| EXPECT_TRUE(sheet_->LoadBuffer(buf, wcslen(buf))); |
| EXPECT_EQ(0, sheet_->CountRules()); |
| |
| buf = L"a+b { padding: 0; }"; |
| EXPECT_TRUE(sheet_->LoadBuffer(buf, wcslen(buf))); |
| EXPECT_EQ(0, sheet_->CountRules()); |
| |
| buf = L"a ^ b { padding: 0; }"; |
| EXPECT_TRUE(sheet_->LoadBuffer(buf, wcslen(buf))); |
| EXPECT_EQ(0, sheet_->CountRules()); |
| } |
| |
| TEST_F(CFX_CSSStyleSheetTest, ParseMultipleSelectorsCombined) { |
| LoadAndVerifyDecl(L"a, b, c { border: 5px; }", {L"a", L"b", L"c"}, 4); |
| } |
| |
| TEST_F(CFX_CSSStyleSheetTest, ParseBorder) { |
| LoadAndVerifyDecl(L"a { border: 5px; }", {L"a"}, 4); |
| VerifyFloat(CFX_CSSProperty::BorderLeftWidth, 5.0, CFX_CSSNumberType::Pixels); |
| VerifyFloat(CFX_CSSProperty::BorderRightWidth, 5.0, |
| CFX_CSSNumberType::Pixels); |
| VerifyFloat(CFX_CSSProperty::BorderTopWidth, 5.0, CFX_CSSNumberType::Pixels); |
| VerifyFloat(CFX_CSSProperty::BorderBottomWidth, 5.0, |
| CFX_CSSNumberType::Pixels); |
| } |
| |
| TEST_F(CFX_CSSStyleSheetTest, ParseBorderFull) { |
| LoadAndVerifyDecl(L"a { border: 5px solid red; }", {L"a"}, 4); |
| VerifyFloat(CFX_CSSProperty::BorderLeftWidth, 5.0, CFX_CSSNumberType::Pixels); |
| VerifyFloat(CFX_CSSProperty::BorderRightWidth, 5.0, |
| CFX_CSSNumberType::Pixels); |
| VerifyFloat(CFX_CSSProperty::BorderTopWidth, 5.0, CFX_CSSNumberType::Pixels); |
| VerifyFloat(CFX_CSSProperty::BorderBottomWidth, 5.0, |
| CFX_CSSNumberType::Pixels); |
| } |
| |
| TEST_F(CFX_CSSStyleSheetTest, ParseBorderLeft) { |
| LoadAndVerifyDecl(L"a { border-left: 2.5pc; }", {L"a"}, 1); |
| VerifyFloat(CFX_CSSProperty::BorderLeftWidth, 2.5, CFX_CSSNumberType::Picas); |
| } |
| |
| TEST_F(CFX_CSSStyleSheetTest, ParseBorderLeftThick) { |
| LoadAndVerifyDecl(L"a { border-left: thick; }", {L"a"}, 1); |
| VerifyEnum(CFX_CSSProperty::BorderLeftWidth, CFX_CSSPropertyValue::Thick); |
| } |
| |
| TEST_F(CFX_CSSStyleSheetTest, ParseBorderRight) { |
| LoadAndVerifyDecl(L"a { border-right: 2.5pc; }", {L"a"}, 1); |
| VerifyFloat(CFX_CSSProperty::BorderRightWidth, 2.5, CFX_CSSNumberType::Picas); |
| } |
| |
| TEST_F(CFX_CSSStyleSheetTest, ParseBorderTop) { |
| LoadAndVerifyDecl(L"a { border-top: 2.5pc; }", {L"a"}, 1); |
| VerifyFloat(CFX_CSSProperty::BorderTopWidth, 2.5, CFX_CSSNumberType::Picas); |
| } |
| |
| TEST_F(CFX_CSSStyleSheetTest, ParseBorderBottom) { |
| LoadAndVerifyDecl(L"a { border-bottom: 2.5pc; }", {L"a"}, 1); |
| VerifyFloat(CFX_CSSProperty::BorderBottomWidth, 2.5, |
| CFX_CSSNumberType::Picas); |
| } |