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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "core/html/HTMLEmbedElement.h"
#include "core/dom/Document.h"
#include "core/frame/FrameView.h"
#include "core/html/HTMLObjectElement.h"
#include "core/style/ComputedStyle.h"
#include "core/testing/DummyPageHolder.h"
#include "testing/gtest/include/gtest/gtest.h"
#include <memory>
namespace blink {
class HTMLEmbedElementTest : public testing::Test {
protected:
HTMLEmbedElementTest() {}
void SetUp() override;
Document& document() const { return *m_document; }
void setHtmlInnerHTML(const char* htmlContent);
std::unique_ptr<DummyPageHolder> m_dummyPageHolder;
Persistent<Document> m_document;
};
void HTMLEmbedElementTest::SetUp() {
m_dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
m_document = &m_dummyPageHolder->document();
DCHECK(m_document);
}
void HTMLEmbedElementTest::setHtmlInnerHTML(const char* htmlContent) {
document().documentElement()->setInnerHTML(String::fromUTF8(htmlContent));
document().view()->updateAllLifecyclePhases();
}
TEST_F(HTMLEmbedElementTest, FallbackState) {
// Load <object> element with a <embed> child.
// This can be seen on sites with Flash cookies,
// for example on www.yandex.ru
setHtmlInnerHTML(
"<div>"
"<object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' width='1' "
"height='1' id='fco'>"
"<param name='movie' value='//site.com/flash-cookie.swf'>"
"<param name='allowScriptAccess' value='Always'>"
"<embed src='//site.com/flash-cookie.swf' allowscriptaccess='Always' "
"width='1' height='1' id='fce'>"
"</object></div>");
auto* objectElement = document().getElementById("fco");
ASSERT_TRUE(objectElement);
ASSERT_TRUE(isHTMLObjectElement(objectElement));
HTMLObjectElement* object = toHTMLObjectElement(objectElement);
// At this moment updateWidget() function is not called, so
// useFallbackContent() will return false.
// But the element will likely to use fallback content after updateWidget().
EXPECT_TRUE(object->hasFallbackContent());
EXPECT_FALSE(object->useFallbackContent());
EXPECT_TRUE(object->willUseFallbackContentAtLayout());
auto* embedElement = document().getElementById("fce");
ASSERT_TRUE(embedElement);
ASSERT_TRUE(isHTMLEmbedElement(embedElement));
HTMLEmbedElement* embed = toHTMLEmbedElement(embedElement);
document().view()->updateAllLifecyclePhases();
// We should get |true| as a result and don't trigger a DCHECK.
EXPECT_TRUE(static_cast<Element*>(embed)->layoutObjectIsNeeded(
ComputedStyle::initialStyle()));
// This call will update fallback state of the object.
object->updateWidget();
EXPECT_TRUE(object->hasFallbackContent());
EXPECT_TRUE(object->useFallbackContent());
EXPECT_TRUE(object->willUseFallbackContentAtLayout());
document().view()->updateAllLifecyclePhases();
EXPECT_TRUE(static_cast<Element*>(embed)->layoutObjectIsNeeded(
ComputedStyle::initialStyle()));
}
} // namespace blink
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