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// 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);
}
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