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// Copyright 2015 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "cobalt/cssom/cascaded_style.h"
#include "cobalt/css_parser/parser.h"
#include "cobalt/cssom/cascade_precedence.h"
#include "cobalt/cssom/css_computed_style_data.h"
#include "cobalt/cssom/css_declaration_data.h"
#include "cobalt/cssom/css_declared_style_data.h"
#include "cobalt/cssom/css_rule_style_declaration.h"
#include "cobalt/cssom/css_style_rule.h"
#include "cobalt/cssom/css_style_sheet.h"
#include "cobalt/cssom/keyword_value.h"
#include "googleurl/src/gurl.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cobalt {
namespace cssom {
TEST(CascadedStyleTest, PromoteToCascadedStyle) {
scoped_ptr<css_parser::Parser> css_parser = css_parser::Parser::Create();
scoped_refptr<CSSDeclaredStyleData> style = new CSSDeclaredStyleData();
RulesWithCascadePrecedence rules_with_cascade_precedence;
GURLMap property_key_to_base_url_map;
style->SetPropertyValueAndImportance(kVerticalAlignProperty,
KeywordValue::GetBottom(), true);
style->SetPropertyValueAndImportance(kTextAlignProperty,
KeywordValue::GetLeft(), false);
// The order of cascade precedence of the following rules:
// rule 2 > rule 3 > rule 1.
scoped_refptr<CSSStyleRule> css_style_rule_1 =
css_parser->ParseRule(
"div {"
" left: 100px !important;"
" right: 100px;"
" width: 100px;"
" height: 100px;"
"}",
base::SourceLocation("[object CascadedStyleTest]", 1, 1))
->AsCSSStyleRule();
CascadePrecedence cascade_precedence_1(kNormalUserAgent);
rules_with_cascade_precedence.push_back(
std::make_pair(css_style_rule_1, cascade_precedence_1));
scoped_refptr<CSSStyleRule> css_style_rule_2 =
css_parser->ParseRule(
"div {"
" left: 200px;"
" right: 200px !important;"
" width: 200px;"
" height: 200px;"
" vertical-align: top !important;"
" text-align: center !important;"
"}",
base::SourceLocation("[object CascadedStyleTest]", 1, 1))
->AsCSSStyleRule();
CascadePrecedence cascade_precedence_2(kNormalOverride);
rules_with_cascade_precedence.push_back(
std::make_pair(css_style_rule_2, cascade_precedence_2));
scoped_refptr<CSSStyleRule> css_style_rule_3 =
css_parser->ParseRule(
"div {"
" left: 300px;"
" right: 300px;"
" width: 300px !important;"
" height: 300px;"
"}",
base::SourceLocation("[object CascadedStyleTest]", 1, 1))
->AsCSSStyleRule();
CascadePrecedence cascade_precedence_3(kNormalAuthor);
rules_with_cascade_precedence.push_back(
std::make_pair(css_style_rule_3, cascade_precedence_3));
scoped_refptr<CSSComputedStyleData> computed_style = PromoteToCascadedStyle(
style, &rules_with_cascade_precedence, &property_key_to_base_url_map);
EXPECT_EQ(
computed_style->left(),
css_style_rule_1->declared_style_data()->GetPropertyValue(kLeftProperty));
EXPECT_EQ(computed_style->right(),
css_style_rule_2->declared_style_data()->GetPropertyValue(
kRightProperty));
EXPECT_EQ(computed_style->width(),
css_style_rule_3->declared_style_data()->GetPropertyValue(
kWidthProperty));
EXPECT_EQ(computed_style->height(),
css_style_rule_2->declared_style_data()->GetPropertyValue(
kHeightProperty));
EXPECT_EQ(computed_style->vertical_align(),
style->GetPropertyValue(kVerticalAlignProperty));
EXPECT_EQ(computed_style->text_align(),
css_style_rule_2->declared_style_data()->GetPropertyValue(
kTextAlignProperty));
}
TEST(CascadedStyleTest, PromoteToCascadedStyleWithBackgroundImage) {
scoped_ptr<css_parser::Parser> css_parser = css_parser::Parser::Create();
scoped_refptr<CSSDeclaredStyleData> style = new CSSDeclaredStyleData();
RulesWithCascadePrecedence rules_with_cascade_precedence;
GURLMap property_key_to_base_url_map;
// The order of cascade precedence of the following rules:
// rule 2 > rule 1.
scoped_refptr<CSSStyleRule> css_style_rule_1 =
css_parser->ParseRule(
"div {"
" left: 100px !important;"
" right: 100px;"
"}",
base::SourceLocation("[object CascadedStyleTest]", 1, 1))
->AsCSSStyleRule();
CascadePrecedence cascade_precedence_1(kNormalUserAgent);
rules_with_cascade_precedence.push_back(
std::make_pair(css_style_rule_1, cascade_precedence_1));
scoped_refptr<CSSStyleRule> css_style_rule_2 =
css_parser->ParseRule(
"div {"
" left: 200px;"
" right: 200px !important;"
" background-image: url(foo.png);"
"}",
base::SourceLocation("[object CascadedStyleTest]", 1, 1))
->AsCSSStyleRule();
CascadePrecedence cascade_precedence_2(kNormalOverride);
rules_with_cascade_precedence.push_back(
std::make_pair(css_style_rule_2, cascade_precedence_2));
scoped_refptr<CSSStyleSheet> parent_style_sheet(new CSSStyleSheet());
parent_style_sheet->SetLocationUrl(GURL("https:///www.youtube.com/tv/img"));
css_style_rule_2->set_parent_style_sheet(parent_style_sheet.get());
scoped_refptr<CSSComputedStyleData> computed_style = PromoteToCascadedStyle(
style, &rules_with_cascade_precedence, &property_key_to_base_url_map);
EXPECT_EQ(
computed_style->left(),
css_style_rule_1->declared_style_data()->GetPropertyValue(kLeftProperty));
EXPECT_EQ(computed_style->right(),
css_style_rule_2->declared_style_data()->GetPropertyValue(
kRightProperty));
EXPECT_EQ(computed_style->background_image(),
css_style_rule_2->declared_style_data()->GetPropertyValue(
kBackgroundImageProperty));
ASSERT_FALSE(property_key_to_base_url_map.empty());
EXPECT_EQ(property_key_to_base_url_map[kBackgroundImageProperty].spec(),
"https://www.youtube.com/tv/img");
}
TEST(CascadedStyleTest,
PromoteToCascadedStyleWithParentStyleSheetLocationUnset) {
scoped_ptr<css_parser::Parser> css_parser = css_parser::Parser::Create();
scoped_refptr<CSSDeclaredStyleData> style = new CSSDeclaredStyleData();
RulesWithCascadePrecedence rules_with_cascade_precedence;
GURLMap property_key_to_base_url_map;
property_key_to_base_url_map[kBackgroundImageProperty] =
GURL("https://www.youtube.com/tv/img");
scoped_refptr<CSSStyleRule> css_style_rule =
css_parser->ParseRule(
"div {"
" left: 200px;"
" right: 200px !important;"
" background-image: url(foo.png);"
"}",
base::SourceLocation("[object CascadedStyleTest]", 1, 1))
->AsCSSStyleRule();
CascadePrecedence cascade_precedence(kNormalOverride);
rules_with_cascade_precedence.push_back(
std::make_pair(css_style_rule, cascade_precedence));
scoped_refptr<CSSStyleSheet> parent_style_sheet(new CSSStyleSheet());
css_style_rule->set_parent_style_sheet(parent_style_sheet.get());
scoped_refptr<CSSComputedStyleData> computed_style = PromoteToCascadedStyle(
style, &rules_with_cascade_precedence, &property_key_to_base_url_map);
EXPECT_EQ(
computed_style->left(),
css_style_rule->declared_style_data()->GetPropertyValue(kLeftProperty));
EXPECT_EQ(
computed_style->right(),
css_style_rule->declared_style_data()->GetPropertyValue(kRightProperty));
EXPECT_EQ(computed_style->background_image(),
css_style_rule->declared_style_data()->GetPropertyValue(
kBackgroundImageProperty));
ASSERT_FALSE(property_key_to_base_url_map.empty());
EXPECT_EQ(property_key_to_base_url_map[kBackgroundImageProperty].spec(),
"https://www.youtube.com/tv/img");
}
TEST(CascadedStyleTest,
PromoteToCascadedStyleWithHigherBackgroundImagePriorityInFirstRule) {
scoped_ptr<css_parser::Parser> css_parser = css_parser::Parser::Create();
scoped_refptr<CSSDeclaredStyleData> style = new CSSDeclaredStyleData();
RulesWithCascadePrecedence rules_with_cascade_precedence;
GURLMap property_key_to_base_url_map;
// The order of cascade precedence of the following rules:
// rule 2 > rule 1.
scoped_refptr<CSSStyleRule> css_style_rule_1 =
css_parser->ParseRule(
"div {"
" right: 100px;"
" background-image: url(bar.png) !important;"
"}",
base::SourceLocation("[object CascadedStyleTest]", 1, 1))
->AsCSSStyleRule();
CascadePrecedence cascade_precedence_1(kNormalUserAgent);
rules_with_cascade_precedence.push_back(
std::make_pair(css_style_rule_1, cascade_precedence_1));
scoped_refptr<CSSStyleSheet> parent_style_sheet_1(new CSSStyleSheet());
parent_style_sheet_1->SetLocationUrl(
GURL("https:///www.youtube.com/tv/img1"));
css_style_rule_1->set_parent_style_sheet(parent_style_sheet_1.get());
scoped_refptr<CSSStyleRule> css_style_rule_2 =
css_parser->ParseRule(
"div {"
" right: 200px !important;"
" background-image: url(foo.png);"
"}",
base::SourceLocation("[object CascadedStyleTest]", 1, 1))
->AsCSSStyleRule();
CascadePrecedence cascade_precedence_2(kNormalOverride);
rules_with_cascade_precedence.push_back(
std::make_pair(css_style_rule_2, cascade_precedence_2));
scoped_refptr<CSSStyleSheet> parent_style_sheet_2(new CSSStyleSheet());
parent_style_sheet_2->SetLocationUrl(
GURL("https:///www.youtube.com/tv/img2"));
css_style_rule_2->set_parent_style_sheet(parent_style_sheet_2.get());
scoped_refptr<CSSComputedStyleData> computed_style = PromoteToCascadedStyle(
style, &rules_with_cascade_precedence, &property_key_to_base_url_map);
EXPECT_EQ(computed_style->right(),
css_style_rule_2->declared_style_data()->GetPropertyValue(
kRightProperty));
EXPECT_EQ(computed_style->background_image(),
css_style_rule_1->declared_style_data()->GetPropertyValue(
kBackgroundImageProperty));
ASSERT_FALSE(property_key_to_base_url_map.empty());
EXPECT_EQ(property_key_to_base_url_map[kBackgroundImageProperty].spec(),
"https://www.youtube.com/tv/img1");
}
} // namespace cssom
} // namespace cobalt