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// Copyright 2018 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 "third_party/blink/renderer/core/layout/ng/inline/ng_physical_line_box_fragment.h"
#include "third_party/blink/renderer/core/layout/ng/inline/ng_inline_fragment_traversal.h"
#include "third_party/blink/renderer/core/layout/ng/inline/ng_physical_text_fragment.h"
#include "third_party/blink/renderer/core/layout/ng/ng_layout_test.h"
#include "third_party/blink/renderer/core/layout/ng/ng_physical_box_fragment.h"
namespace blink {
class NGPhysicalLineBoxFragmentTest : public NGLayoutTest {
public:
NGPhysicalLineBoxFragmentTest() : NGLayoutTest() {}
protected:
Vector<const NGPhysicalLineBoxFragment*> GetLineBoxes() const {
const Element* container = GetElementById("root");
DCHECK(container);
const LayoutObject* layout_object = container->GetLayoutObject();
DCHECK(layout_object) << container;
DCHECK(layout_object->IsLayoutBlockFlow()) << container;
const NGPhysicalBoxFragment* root_fragment =
To<LayoutBlockFlow>(layout_object)->GetPhysicalFragment(0);
DCHECK(root_fragment) << container;
Vector<const NGPhysicalLineBoxFragment*> lines;
for (const auto& child :
NGInlineFragmentTraversal::DescendantsOf(*root_fragment)) {
if (const NGPhysicalLineBoxFragment* line =
DynamicTo<NGPhysicalLineBoxFragment>(child.fragment.get())) {
lines.push_back(line);
}
}
return lines;
}
const NGPhysicalLineBoxFragment* GetLineBox() const {
Vector<const NGPhysicalLineBoxFragment*> lines = GetLineBoxes();
if (!lines.IsEmpty())
return lines.front();
return nullptr;
}
};
#define EXPECT_TEXT_FRAGMENT(text, fragment) \
{ EXPECT_EQ(text, To<NGPhysicalTextFragment>(fragment)->Text().ToString()); }
#define EXPECT_BOX_FRAGMENT(id, fragment) \
{ \
EXPECT_TRUE(fragment); \
EXPECT_TRUE(fragment->IsBox()); \
EXPECT_TRUE(fragment->GetNode()); \
EXPECT_EQ(GetElementById(id), fragment->GetNode()); \
}
TEST_F(NGPhysicalLineBoxFragmentTest, HasPropagatedDescendantsFloat) {
SetBodyInnerHTML(R"HTML(
<!DOCTYPE html>
<style>
div {
font-size: 10px;
width: 10ch;
}
.float { float: left; }
</style>
<div id=root>12345678 12345<div class=float>float</div></div>
)HTML");
Vector<const NGPhysicalLineBoxFragment*> lines = GetLineBoxes();
EXPECT_EQ(lines.size(), 2u);
EXPECT_FALSE(lines[0]->HasPropagatedDescendants());
EXPECT_TRUE(lines[1]->HasPropagatedDescendants());
}
TEST_F(NGPhysicalLineBoxFragmentTest, HasPropagatedDescendantsOOF) {
SetBodyInnerHTML(R"HTML(
<!DOCTYPE html>
<style>
div {
font-size: 10px;
width: 10ch;
}
.abspos { position: absolute; }
</style>
<div id=root>12345678 12345<div class=abspos>abspos</div></div>
)HTML");
Vector<const NGPhysicalLineBoxFragment*> lines = GetLineBoxes();
EXPECT_EQ(lines.size(), 2u);
EXPECT_FALSE(lines[0]->HasPropagatedDescendants());
EXPECT_TRUE(lines[1]->HasPropagatedDescendants());
}
} // namespace blink
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