| // 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 "third_party/blink/renderer/core/layout/ng/ng_length_utils.h" |
| |
| #include "base/memory/scoped_refptr.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/blink/renderer/core/layout/ng/ng_block_node.h" |
| #include "third_party/blink/renderer/core/layout/ng/ng_constraint_space.h" |
| #include "third_party/blink/renderer/core/layout/ng/ng_constraint_space_builder.h" |
| #include "third_party/blink/renderer/core/layout/ng/ng_layout_test.h" |
| #include "third_party/blink/renderer/core/style/computed_style.h" |
| #include "third_party/blink/renderer/platform/geometry/calculation_value.h" |
| #include "third_party/blink/renderer/platform/geometry/layout_unit.h" |
| #include "third_party/blink/renderer/platform/geometry/length.h" |
| |
| namespace blink { |
| namespace { |
| |
| static NGConstraintSpace ConstructConstraintSpace( |
| int inline_size, |
| int block_size, |
| bool fixed_inline = false, |
| bool fixed_block = false, |
| WritingMode writing_mode = WritingMode::kHorizontalTb) { |
| LogicalSize size = {LayoutUnit(inline_size), LayoutUnit(block_size)}; |
| |
| NGConstraintSpaceBuilder builder(writing_mode, |
| {writing_mode, TextDirection::kLtr}, |
| /* is_new_fc */ false); |
| builder.SetAvailableSize(size); |
| builder.SetPercentageResolutionSize(size); |
| builder.SetIsFixedInlineSize(fixed_inline); |
| builder.SetIsFixedBlockSize(fixed_block); |
| return builder.ToConstraintSpace(); |
| } |
| |
| class NGLengthUtilsTest : public testing::Test { |
| protected: |
| void SetUp() override { style_ = ComputedStyle::Create(); } |
| |
| LayoutUnit ResolveMainInlineLength( |
| const Length& length, |
| const base::Optional<MinMaxSizes>& sizes = base::nullopt) { |
| NGConstraintSpace constraint_space = ConstructConstraintSpace(200, 300); |
| NGBoxStrut border_padding = ComputeBordersForTest(*style_) + |
| ComputePadding(constraint_space, *style_); |
| |
| return ::blink::ResolveMainInlineLength(constraint_space, *style_, |
| border_padding, sizes, length); |
| } |
| |
| LayoutUnit ResolveMinInlineLength( |
| const Length& length, |
| LengthResolvePhase phase = LengthResolvePhase::kLayout, |
| const base::Optional<MinMaxSizes>& sizes = base::nullopt) { |
| NGConstraintSpace constraint_space = ConstructConstraintSpace(200, 300); |
| NGBoxStrut border_padding = ComputeBordersForTest(*style_) + |
| ComputePadding(constraint_space, *style_); |
| |
| return ::blink::ResolveMinInlineLength( |
| constraint_space, *style_, border_padding, sizes, length, phase); |
| } |
| |
| LayoutUnit ResolveMaxInlineLength( |
| const Length& length, |
| LengthResolvePhase phase = LengthResolvePhase::kLayout, |
| const base::Optional<MinMaxSizes>& sizes = base::nullopt) { |
| NGConstraintSpace constraint_space = ConstructConstraintSpace(200, 300); |
| NGBoxStrut border_padding = ComputeBordersForTest(*style_) + |
| ComputePadding(constraint_space, *style_); |
| |
| return ::blink::ResolveMaxInlineLength( |
| constraint_space, *style_, border_padding, sizes, length, phase); |
| } |
| |
| LayoutUnit ResolveMainBlockLength(const Length& length, |
| LayoutUnit content_size = LayoutUnit()) { |
| NGConstraintSpace constraint_space = ConstructConstraintSpace(200, 300); |
| NGBoxStrut border_padding = ComputeBordersForTest(*style_) + |
| ComputePadding(constraint_space, *style_); |
| |
| return ::blink::ResolveMainBlockLength(constraint_space, *style_, |
| border_padding, length, content_size, |
| LengthResolvePhase::kLayout); |
| } |
| |
| scoped_refptr<ComputedStyle> style_; |
| }; |
| |
| class NGLengthUtilsTestWithNode : public NGLayoutTest { |
| public: |
| void SetUp() override { |
| NGLayoutTest::SetUp(); |
| style_ = ComputedStyle::Create(); |
| } |
| |
| LayoutUnit ComputeInlineSizeForFragment( |
| NGConstraintSpace constraint_space = ConstructConstraintSpace(200, 300), |
| const MinMaxSizes& sizes = MinMaxSizes()) { |
| LayoutBox* body = ToLayoutBox(GetDocument().body()->GetLayoutObject()); |
| body->SetStyle(style_); |
| body->SetIntrinsicLogicalWidthsDirty(); |
| NGBlockNode node(body); |
| |
| NGBoxStrut border_padding = ComputeBordersForTest(*style_) + |
| ComputePadding(constraint_space, *style_); |
| return ::blink::ComputeInlineSizeForFragment(constraint_space, node, |
| border_padding, &sizes); |
| } |
| |
| LayoutUnit ComputeBlockSizeForFragment( |
| NGConstraintSpace constraint_space = ConstructConstraintSpace(200, 300), |
| LayoutUnit content_size = LayoutUnit(), |
| base::Optional<LayoutUnit> inline_size = base::nullopt) { |
| LayoutBox* body = ToLayoutBox(GetDocument().body()->GetLayoutObject()); |
| body->SetStyle(style_); |
| body->SetIntrinsicLogicalWidthsDirty(); |
| |
| NGBoxStrut border_padding = ComputeBordersForTest(*style_) + |
| ComputePadding(constraint_space, *style_); |
| return ::blink::ComputeBlockSizeForFragment( |
| constraint_space, *style_, border_padding, content_size, inline_size); |
| } |
| |
| scoped_refptr<ComputedStyle> style_; |
| }; |
| |
| TEST_F(NGLengthUtilsTest, testResolveInlineLength) { |
| EXPECT_EQ(LayoutUnit(60), ResolveMainInlineLength(Length::Percent(30))); |
| EXPECT_EQ(LayoutUnit(150), ResolveMainInlineLength(Length::Fixed(150))); |
| EXPECT_EQ(LayoutUnit(0), ResolveMinInlineLength( |
| Length::Auto(), LengthResolvePhase::kIntrinsic)); |
| EXPECT_EQ(LayoutUnit(200), ResolveMainInlineLength(Length::Auto())); |
| EXPECT_EQ(LayoutUnit(200), ResolveMainInlineLength(Length::FillAvailable())); |
| |
| EXPECT_EQ(LayoutUnit::Max(), |
| ResolveMaxInlineLength(Length::Percent(30), |
| LengthResolvePhase::kIntrinsic)); |
| EXPECT_EQ(LayoutUnit::Max(), |
| ResolveMaxInlineLength(Length::FillAvailable(), |
| LengthResolvePhase::kIntrinsic)); |
| MinMaxSizes sizes; |
| sizes.min_size = LayoutUnit(30); |
| sizes.max_size = LayoutUnit(40); |
| EXPECT_EQ(LayoutUnit(30), |
| ResolveMainInlineLength(Length::MinContent(), sizes)); |
| EXPECT_EQ(LayoutUnit(40), |
| ResolveMainInlineLength(Length::MaxContent(), sizes)); |
| EXPECT_EQ(LayoutUnit(40), |
| ResolveMainInlineLength(Length::FitContent(), sizes)); |
| sizes.max_size = LayoutUnit(800); |
| EXPECT_EQ(LayoutUnit(200), |
| ResolveMainInlineLength(Length::FitContent(), sizes)); |
| |
| #if DCHECK_IS_ON() |
| // This should fail a DCHECK. |
| EXPECT_DEATH_IF_SUPPORTED(ResolveMainInlineLength(Length::FitContent()), ""); |
| #endif |
| } |
| |
| TEST_F(NGLengthUtilsTest, testResolveBlockLength) { |
| EXPECT_EQ(LayoutUnit(90), ResolveMainBlockLength(Length::Percent(30))); |
| EXPECT_EQ(LayoutUnit(150), ResolveMainBlockLength(Length::Fixed(150))); |
| EXPECT_EQ(LayoutUnit(0), ResolveMainBlockLength(Length::Auto())); |
| EXPECT_EQ(LayoutUnit(300), ResolveMainBlockLength(Length::FillAvailable())); |
| |
| EXPECT_EQ(LayoutUnit(300), ResolveMainBlockLength(Length::FillAvailable())); |
| } |
| |
| TEST_F(NGLengthUtilsTestWithNode, testComputeContentContribution) { |
| MinMaxSizes sizes; |
| sizes.min_size = LayoutUnit(30); |
| sizes.max_size = LayoutUnit(40); |
| LayoutBox* body = ToLayoutBox(GetDocument().body()->GetLayoutObject()); |
| body->SetStyle(style_); |
| NGBlockNode node(body); |
| |
| MinMaxSizes expected = sizes; |
| style_->SetLogicalWidth(Length::Percent(30)); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes)); |
| |
| style_->SetLogicalWidth(Length::FillAvailable()); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes)); |
| |
| expected = MinMaxSizes{LayoutUnit(150), LayoutUnit(150)}; |
| style_->SetLogicalWidth(Length::Fixed(150)); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes)); |
| |
| expected = sizes; |
| style_->SetLogicalWidth(Length::Auto()); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes)); |
| |
| expected = MinMaxSizes{LayoutUnit(430), LayoutUnit(440)}; |
| style_->SetPaddingLeft(Length::Fixed(400)); |
| auto sizes_padding400 = sizes; |
| sizes_padding400 += LayoutUnit(400); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes_padding400)); |
| |
| expected = MinMaxSizes{LayoutUnit(30), LayoutUnit(40)}; |
| style_->SetPaddingLeft(Length::Fixed(0)); |
| style_->SetLogicalWidth(Length(CalculationValue::Create( |
| PixelsAndPercent(100, -10), kValueRangeNonNegative))); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes)); |
| |
| expected = MinMaxSizes{LayoutUnit(30), LayoutUnit(35)}; |
| style_->SetLogicalWidth(Length::Auto()); |
| style_->SetMaxWidth(Length::Fixed(35)); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes)); |
| |
| expected = MinMaxSizes{LayoutUnit(80), LayoutUnit(80)}; |
| style_->SetLogicalWidth(Length::Fixed(50)); |
| style_->SetMinWidth(Length::Fixed(80)); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes)); |
| |
| expected = MinMaxSizes{LayoutUnit(150), LayoutUnit(150)}; |
| style_ = ComputedStyle::Create(); |
| style_->SetLogicalWidth(Length::Fixed(100)); |
| style_->SetPaddingLeft(Length::Fixed(50)); |
| body->SetStyle(style_); |
| auto sizes_padding50 = sizes; |
| sizes_padding50 += LayoutUnit(50); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes_padding50)); |
| |
| expected = MinMaxSizes{LayoutUnit(100), LayoutUnit(100)}; |
| style_->SetBoxSizing(EBoxSizing::kBorderBox); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes_padding50)); |
| |
| // Content size should never be below zero, even with box-sizing: border-box |
| // and a large padding... |
| expected = MinMaxSizes{LayoutUnit(400), LayoutUnit(400)}; |
| style_->SetPaddingLeft(Length::Fixed(400)); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes_padding400)); |
| |
| expected.min_size = expected.max_size = sizes.min_size + LayoutUnit(400); |
| style_->SetLogicalWidth(Length::MinContent()); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes_padding400)); |
| style_->SetLogicalWidth(Length::Fixed(100)); |
| style_->SetMaxWidth(Length::MaxContent()); |
| // Due to padding and box-sizing, width computes to 400px and max-width to |
| // 440px, so the result is 400. |
| expected = MinMaxSizes{LayoutUnit(400), LayoutUnit(400)}; |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes_padding400)); |
| expected = MinMaxSizes{LayoutUnit(40), LayoutUnit(40)}; |
| style_->SetPaddingLeft(Length::Fixed(0)); |
| EXPECT_EQ(expected, ComputeMinAndMaxContentContributionForTest( |
| style_->GetWritingMode(), node, sizes)); |
| } |
| |
| TEST_F(NGLengthUtilsTestWithNode, testComputeInlineSizeForFragment) { |
| MinMaxSizes sizes; |
| sizes.min_size = LayoutUnit(30); |
| sizes.max_size = LayoutUnit(40); |
| |
| style_->SetLogicalWidth(Length::Percent(30)); |
| EXPECT_EQ(LayoutUnit(60), ComputeInlineSizeForFragment()); |
| |
| style_->SetLogicalWidth(Length::Fixed(150)); |
| EXPECT_EQ(LayoutUnit(150), ComputeInlineSizeForFragment()); |
| |
| style_->SetLogicalWidth(Length::Auto()); |
| EXPECT_EQ(LayoutUnit(200), ComputeInlineSizeForFragment()); |
| |
| style_->SetLogicalWidth(Length::FillAvailable()); |
| EXPECT_EQ(LayoutUnit(200), ComputeInlineSizeForFragment()); |
| |
| style_->SetLogicalWidth(Length(CalculationValue::Create( |
| PixelsAndPercent(100, -10), kValueRangeNonNegative))); |
| EXPECT_EQ(LayoutUnit(80), ComputeInlineSizeForFragment()); |
| |
| NGConstraintSpace constraint_space = |
| ConstructConstraintSpace(120, 120, true, true); |
| style_->SetLogicalWidth(Length::Fixed(150)); |
| EXPECT_EQ(LayoutUnit(120), ComputeInlineSizeForFragment(constraint_space)); |
| |
| style_->SetLogicalWidth(Length::Fixed(200)); |
| style_->SetMaxWidth(Length::Percent(80)); |
| EXPECT_EQ(LayoutUnit(160), ComputeInlineSizeForFragment()); |
| |
| style_->SetLogicalWidth(Length::Fixed(100)); |
| style_->SetMinWidth(Length::Percent(80)); |
| EXPECT_EQ(LayoutUnit(160), ComputeInlineSizeForFragment()); |
| |
| style_ = ComputedStyle::Create(); |
| style_->SetMarginRight(Length::Fixed(20)); |
| EXPECT_EQ(LayoutUnit(180), ComputeInlineSizeForFragment()); |
| |
| style_->SetLogicalWidth(Length::Fixed(100)); |
| style_->SetPaddingLeft(Length::Fixed(50)); |
| EXPECT_EQ(LayoutUnit(150), ComputeInlineSizeForFragment()); |
| |
| style_->SetBoxSizing(EBoxSizing::kBorderBox); |
| EXPECT_EQ(LayoutUnit(100), ComputeInlineSizeForFragment()); |
| |
| // Content size should never be below zero, even with box-sizing: border-box |
| // and a large padding... |
| style_->SetPaddingLeft(Length::Fixed(400)); |
| EXPECT_EQ(LayoutUnit(400), ComputeInlineSizeForFragment()); |
| auto sizes_padding400 = sizes; |
| sizes_padding400 += LayoutUnit(400); |
| |
| // ...and the same goes for fill-available with a large padding. |
| style_->SetLogicalWidth(Length::FillAvailable()); |
| EXPECT_EQ(LayoutUnit(400), ComputeInlineSizeForFragment()); |
| |
| constraint_space = ConstructConstraintSpace(120, 140); |
| style_->SetLogicalWidth(Length::MinContent()); |
| EXPECT_EQ(LayoutUnit(430), |
| ComputeInlineSizeForFragment(constraint_space, sizes_padding400)); |
| style_->SetLogicalWidth(Length::Fixed(100)); |
| style_->SetMaxWidth(Length::MaxContent()); |
| // Due to padding and box-sizing, width computes to 400px and max-width to |
| // 440px, so the result is 400. |
| EXPECT_EQ(LayoutUnit(400), |
| ComputeInlineSizeForFragment(constraint_space, sizes_padding400)); |
| style_->SetPaddingLeft(Length::Fixed(0)); |
| EXPECT_EQ(LayoutUnit(40), |
| ComputeInlineSizeForFragment(constraint_space, sizes)); |
| } |
| |
| TEST_F(NGLengthUtilsTestWithNode, testComputeBlockSizeForFragment) { |
| style_->SetLogicalHeight(Length::Percent(30)); |
| EXPECT_EQ(LayoutUnit(90), ComputeBlockSizeForFragment()); |
| |
| style_->SetLogicalHeight(Length::Fixed(150)); |
| EXPECT_EQ(LayoutUnit(150), ComputeBlockSizeForFragment()); |
| |
| style_->SetLogicalHeight(Length::Auto()); |
| EXPECT_EQ(LayoutUnit(0), ComputeBlockSizeForFragment()); |
| |
| NGConstraintSpace constraint_space = ConstructConstraintSpace(200, 300); |
| style_->SetLogicalHeight(Length::Auto()); |
| EXPECT_EQ(LayoutUnit(120), |
| ComputeBlockSizeForFragment(constraint_space, LayoutUnit(120))); |
| |
| style_->SetLogicalHeight(Length::FillAvailable()); |
| EXPECT_EQ(LayoutUnit(300), ComputeBlockSizeForFragment()); |
| |
| style_->SetLogicalHeight(Length(CalculationValue::Create( |
| PixelsAndPercent(100, -10), kValueRangeNonNegative))); |
| EXPECT_EQ(LayoutUnit(70), ComputeBlockSizeForFragment()); |
| |
| constraint_space = ConstructConstraintSpace(200, 200, true, true); |
| style_->SetLogicalHeight(Length::Fixed(150)); |
| EXPECT_EQ(LayoutUnit(200), ComputeBlockSizeForFragment(constraint_space)); |
| |
| style_->SetLogicalHeight(Length::Fixed(300)); |
| style_->SetMaxHeight(Length::Percent(80)); |
| EXPECT_EQ(LayoutUnit(240), ComputeBlockSizeForFragment()); |
| |
| style_->SetLogicalHeight(Length::Fixed(100)); |
| style_->SetMinHeight(Length::Percent(80)); |
| EXPECT_EQ(LayoutUnit(240), ComputeBlockSizeForFragment()); |
| |
| style_ = ComputedStyle::Create(); |
| style_->SetMarginTop(Length::Fixed(20)); |
| style_->SetLogicalHeight(Length::FillAvailable()); |
| EXPECT_EQ(LayoutUnit(280), ComputeBlockSizeForFragment()); |
| |
| style_->SetLogicalHeight(Length::Fixed(100)); |
| style_->SetPaddingBottom(Length::Fixed(50)); |
| EXPECT_EQ(LayoutUnit(150), ComputeBlockSizeForFragment()); |
| |
| style_->SetBoxSizing(EBoxSizing::kBorderBox); |
| EXPECT_EQ(LayoutUnit(100), ComputeBlockSizeForFragment()); |
| |
| // Content size should never be below zero, even with box-sizing: border-box |
| // and a large padding... |
| style_->SetPaddingBottom(Length::Fixed(400)); |
| EXPECT_EQ(LayoutUnit(400), ComputeBlockSizeForFragment()); |
| |
| // ...and the same goes for fill-available with a large padding. |
| style_->SetLogicalHeight(Length::FillAvailable()); |
| EXPECT_EQ(LayoutUnit(400), ComputeBlockSizeForFragment()); |
| |
| // Now check aspect-ratio. |
| style_ = ComputedStyle::Create(); |
| style_->SetLogicalWidth(Length::Fixed(100)); |
| style_->SetAspectRatio( |
| StyleAspectRatio(EAspectRatioType::kRatio, FloatSize(2, 1))); |
| EXPECT_EQ(LayoutUnit(50), |
| ComputeBlockSizeForFragment(ConstructConstraintSpace(200, 300), |
| LayoutUnit(), LayoutUnit(100))); |
| |
| // Default box-sizing |
| style_->SetPaddingRight(Length::Fixed(10)); |
| style_->SetPaddingBottom(Length::Fixed(20)); |
| // Should be (100 - 10) / 2 + 20 = 65. |
| EXPECT_EQ(LayoutUnit(65), |
| ComputeBlockSizeForFragment(ConstructConstraintSpace(200, 300), |
| LayoutUnit(20), LayoutUnit(100))); |
| // With box-sizing: border-box, should be 50. |
| style_->SetBoxSizing(EBoxSizing::kBorderBox); |
| EXPECT_EQ(LayoutUnit(50), |
| ComputeBlockSizeForFragment(ConstructConstraintSpace(200, 300), |
| LayoutUnit(20), LayoutUnit(100))); |
| |
| // TODO(layout-ng): test {min,max}-content on max-height. |
| } |
| |
| TEST_F(NGLengthUtilsTestWithNode, testIndefinitePercentages) { |
| style_->SetMinHeight(Length::Fixed(20)); |
| style_->SetHeight(Length::Percent(20)); |
| |
| EXPECT_EQ(kIndefiniteSize, |
| ComputeBlockSizeForFragment(ConstructConstraintSpace(200, -1), |
| LayoutUnit(-1))); |
| EXPECT_EQ(LayoutUnit(20), |
| ComputeBlockSizeForFragment(ConstructConstraintSpace(200, -1), |
| LayoutUnit(10))); |
| EXPECT_EQ(LayoutUnit(120), |
| ComputeBlockSizeForFragment(ConstructConstraintSpace(200, -1), |
| LayoutUnit(120))); |
| } |
| |
| TEST_F(NGLengthUtilsTest, testMargins) { |
| style_->SetMarginTop(Length::Percent(10)); |
| style_->SetMarginRight(Length::Fixed(52)); |
| style_->SetMarginBottom(Length::Auto()); |
| style_->SetMarginLeft(Length::Percent(11)); |
| |
| NGConstraintSpace constraint_space = ConstructConstraintSpace(200, 300); |
| |
| NGPhysicalBoxStrut margins = |
| ComputePhysicalMargins(constraint_space, *style_); |
| |
| EXPECT_EQ(LayoutUnit(20), margins.top); |
| EXPECT_EQ(LayoutUnit(52), margins.right); |
| EXPECT_EQ(LayoutUnit(), margins.bottom); |
| EXPECT_EQ(LayoutUnit(22), margins.left); |
| } |
| |
| TEST_F(NGLengthUtilsTest, testBorders) { |
| style_->SetBorderTopWidth(1); |
| style_->SetBorderRightWidth(2); |
| style_->SetBorderBottomWidth(3); |
| style_->SetBorderLeftWidth(4); |
| style_->SetBorderTopStyle(EBorderStyle::kSolid); |
| style_->SetBorderRightStyle(EBorderStyle::kSolid); |
| style_->SetBorderBottomStyle(EBorderStyle::kSolid); |
| style_->SetBorderLeftStyle(EBorderStyle::kSolid); |
| style_->SetWritingMode(WritingMode::kVerticalLr); |
| |
| NGBoxStrut borders = ComputeBordersForTest(*style_); |
| |
| EXPECT_EQ(LayoutUnit(4), borders.block_start); |
| EXPECT_EQ(LayoutUnit(3), borders.inline_end); |
| EXPECT_EQ(LayoutUnit(2), borders.block_end); |
| EXPECT_EQ(LayoutUnit(1), borders.inline_start); |
| } |
| |
| TEST_F(NGLengthUtilsTest, testPadding) { |
| style_->SetPaddingTop(Length::Percent(10)); |
| style_->SetPaddingRight(Length::Fixed(52)); |
| style_->SetPaddingBottom(Length::Auto()); |
| style_->SetPaddingLeft(Length::Percent(11)); |
| style_->SetWritingMode(WritingMode::kVerticalRl); |
| |
| NGConstraintSpace constraint_space = ConstructConstraintSpace( |
| 200, 300, false, false, WritingMode::kVerticalRl); |
| |
| NGBoxStrut padding = ComputePadding(constraint_space, *style_); |
| |
| EXPECT_EQ(LayoutUnit(52), padding.block_start); |
| EXPECT_EQ(LayoutUnit(), padding.inline_end); |
| EXPECT_EQ(LayoutUnit(22), padding.block_end); |
| EXPECT_EQ(LayoutUnit(20), padding.inline_start); |
| } |
| |
| TEST_F(NGLengthUtilsTest, testAutoMargins) { |
| style_->SetMarginRight(Length::Auto()); |
| style_->SetMarginLeft(Length::Auto()); |
| |
| LayoutUnit kInlineSize(150); |
| LayoutUnit kAvailableInlineSize(200); |
| |
| NGBoxStrut margins; |
| ResolveInlineMargins(*style_, *style_, kAvailableInlineSize, kInlineSize, |
| &margins); |
| |
| EXPECT_EQ(LayoutUnit(), margins.block_start); |
| EXPECT_EQ(LayoutUnit(), margins.block_end); |
| EXPECT_EQ(LayoutUnit(25), margins.inline_start); |
| EXPECT_EQ(LayoutUnit(25), margins.inline_end); |
| |
| style_->SetMarginLeft(Length::Fixed(0)); |
| margins = NGBoxStrut(); |
| ResolveInlineMargins(*style_, *style_, kAvailableInlineSize, kInlineSize, |
| &margins); |
| EXPECT_EQ(LayoutUnit(0), margins.inline_start); |
| EXPECT_EQ(LayoutUnit(50), margins.inline_end); |
| |
| style_->SetMarginLeft(Length::Auto()); |
| style_->SetMarginRight(Length::Fixed(0)); |
| margins = NGBoxStrut(); |
| ResolveInlineMargins(*style_, *style_, kAvailableInlineSize, kInlineSize, |
| &margins); |
| EXPECT_EQ(LayoutUnit(50), margins.inline_start); |
| EXPECT_EQ(LayoutUnit(0), margins.inline_end); |
| |
| // Test that we don't end up with negative "auto" margins when the box is too |
| // big. |
| style_->SetMarginLeft(Length::Auto()); |
| style_->SetMarginRight(Length::Fixed(5000)); |
| margins = NGBoxStrut(); |
| margins.inline_end = LayoutUnit(5000); |
| ResolveInlineMargins(*style_, *style_, kAvailableInlineSize, kInlineSize, |
| &margins); |
| EXPECT_EQ(LayoutUnit(0), margins.inline_start); |
| EXPECT_EQ(LayoutUnit(50), margins.inline_end); |
| } |
| |
| // Simple wrappers that don't use LayoutUnit(). Their only purpose is to make |
| // the tests below humanly readable (to make the expectation expressions fit on |
| // one line each). Passing 0 for column width or column count means "auto". |
| int GetUsedColumnWidth(int computed_column_count, |
| int computed_column_width, |
| int used_column_gap, |
| int available_inline_size) { |
| LayoutUnit column_width(computed_column_width); |
| if (!computed_column_width) |
| column_width = LayoutUnit(kIndefiniteSize); |
| return ResolveUsedColumnInlineSize(computed_column_count, column_width, |
| LayoutUnit(used_column_gap), |
| LayoutUnit(available_inline_size)) |
| .ToInt(); |
| } |
| int GetUsedColumnCount(int computed_column_count, |
| int computed_column_width, |
| int used_column_gap, |
| int available_inline_size) { |
| LayoutUnit column_width(computed_column_width); |
| if (!computed_column_width) |
| column_width = LayoutUnit(kIndefiniteSize); |
| return ResolveUsedColumnCount(computed_column_count, column_width, |
| LayoutUnit(used_column_gap), |
| LayoutUnit(available_inline_size)); |
| } |
| |
| TEST_F(NGLengthUtilsTest, testColumnWidthAndCount) { |
| EXPECT_EQ(100, GetUsedColumnWidth(0, 100, 0, 300)); |
| EXPECT_EQ(3, GetUsedColumnCount(0, 100, 0, 300)); |
| EXPECT_EQ(150, GetUsedColumnWidth(0, 101, 0, 300)); |
| EXPECT_EQ(2, GetUsedColumnCount(0, 101, 0, 300)); |
| EXPECT_EQ(300, GetUsedColumnWidth(0, 151, 0, 300)); |
| EXPECT_EQ(1, GetUsedColumnCount(0, 151, 0, 300)); |
| EXPECT_EQ(300, GetUsedColumnWidth(0, 1000, 0, 300)); |
| EXPECT_EQ(1, GetUsedColumnCount(0, 1000, 0, 300)); |
| |
| EXPECT_EQ(100, GetUsedColumnWidth(0, 100, 10, 320)); |
| EXPECT_EQ(3, GetUsedColumnCount(0, 100, 10, 320)); |
| EXPECT_EQ(150, GetUsedColumnWidth(0, 101, 10, 310)); |
| EXPECT_EQ(2, GetUsedColumnCount(0, 101, 10, 310)); |
| EXPECT_EQ(300, GetUsedColumnWidth(0, 151, 10, 300)); |
| EXPECT_EQ(1, GetUsedColumnCount(0, 151, 10, 300)); |
| EXPECT_EQ(300, GetUsedColumnWidth(0, 1000, 10, 300)); |
| EXPECT_EQ(1, GetUsedColumnCount(0, 1000, 10, 300)); |
| |
| EXPECT_EQ(125, GetUsedColumnWidth(4, 0, 0, 500)); |
| EXPECT_EQ(4, GetUsedColumnCount(4, 0, 0, 500)); |
| EXPECT_EQ(125, GetUsedColumnWidth(4, 100, 0, 500)); |
| EXPECT_EQ(4, GetUsedColumnCount(4, 100, 0, 500)); |
| EXPECT_EQ(100, GetUsedColumnWidth(6, 100, 0, 500)); |
| EXPECT_EQ(5, GetUsedColumnCount(6, 100, 0, 500)); |
| EXPECT_EQ(100, GetUsedColumnWidth(0, 100, 0, 500)); |
| EXPECT_EQ(5, GetUsedColumnCount(0, 100, 0, 500)); |
| |
| EXPECT_EQ(125, GetUsedColumnWidth(4, 0, 10, 530)); |
| EXPECT_EQ(4, GetUsedColumnCount(4, 0, 10, 530)); |
| EXPECT_EQ(125, GetUsedColumnWidth(4, 100, 10, 530)); |
| EXPECT_EQ(4, GetUsedColumnCount(4, 100, 10, 530)); |
| EXPECT_EQ(100, GetUsedColumnWidth(6, 100, 10, 540)); |
| EXPECT_EQ(5, GetUsedColumnCount(6, 100, 10, 540)); |
| EXPECT_EQ(100, GetUsedColumnWidth(0, 100, 10, 540)); |
| EXPECT_EQ(5, GetUsedColumnCount(0, 100, 10, 540)); |
| |
| EXPECT_EQ(0, GetUsedColumnWidth(3, 0, 10, 10)); |
| EXPECT_EQ(3, GetUsedColumnCount(3, 0, 10, 10)); |
| } |
| |
| } // namespace |
| } // namespace blink |
