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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:
const NGPhysicalLineBoxFragment* GetLineBox() 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 =
ToLayoutBlockFlow(layout_object)->CurrentFragment();
DCHECK(root_fragment) << container;
for (const auto& child :
NGInlineFragmentTraversal::DescendantsOf(*root_fragment)) {
if (child.fragment->IsLineBox())
return ToNGPhysicalLineBoxFragment(child.fragment.get());
}
NOTREACHED();
return nullptr;
}
};
#define EXPECT_TEXT_FRAGMENT(text, fragment) \
{ \
EXPECT_TRUE(fragment); \
EXPECT_TRUE(fragment->IsText()); \
EXPECT_EQ(text, ToNGPhysicalTextFragment(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, FirstLastLogicalLeafInSimpleText) {
SetBodyInnerHTML(
"<div id=root>"
"<span>foo</span>"
"<span>bar</span>"
"</div>");
EXPECT_TEXT_FRAGMENT("foo", GetLineBox()->FirstLogicalLeaf());
EXPECT_TEXT_FRAGMENT("bar", GetLineBox()->LastLogicalLeaf());
}
TEST_F(NGPhysicalLineBoxFragmentTest, FirstLastLogicalLeafInRtlText) {
SetBodyInnerHTML(
"<bdo id=root dir=rtl style='display: block'>"
"<span>foo</span>"
"<span>bar</span>"
"</bdo>");
EXPECT_TEXT_FRAGMENT("foo", GetLineBox()->FirstLogicalLeaf());
EXPECT_TEXT_FRAGMENT("bar", GetLineBox()->LastLogicalLeaf());
}
TEST_F(NGPhysicalLineBoxFragmentTest,
FirstLastLogicalLeafInTextAsDeepDescendants) {
SetBodyInnerHTML(
"<style>span {border: 1px solid black}</style>"
"<div id=root>"
"<span><span>f</span>oo</span>"
"<span>ba<span>r</span></span>"
"</div>");
EXPECT_TEXT_FRAGMENT("f", GetLineBox()->FirstLogicalLeaf());
EXPECT_TEXT_FRAGMENT("r", GetLineBox()->LastLogicalLeaf());
}
TEST_F(NGPhysicalLineBoxFragmentTest, FirstLastLogicalLeafWithInlineBlock) {
SetBodyInnerHTML(
"<div id=root>"
"<span id=foo style='display: inline-block'>foo</span>"
"bar"
"<span id=baz style='display: inline-block'>baz</span>"
"</div>");
EXPECT_BOX_FRAGMENT("foo", GetLineBox()->FirstLogicalLeaf());
EXPECT_BOX_FRAGMENT("baz", GetLineBox()->LastLogicalLeaf());
}
TEST_F(NGPhysicalLineBoxFragmentTest, FirstLastLogicalLeafWithImages) {
SetBodyInnerHTML("<div id=root><img id=img1>foo<img id=img2></div>");
EXPECT_BOX_FRAGMENT("img1", GetLineBox()->FirstLogicalLeaf());
EXPECT_BOX_FRAGMENT("img2", GetLineBox()->LastLogicalLeaf());
}
} // namespace blink
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