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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/animation/scroll_timeline_util.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_scroll_timeline_options.h"
#include "third_party/blink/renderer/core/animation/animation_test_helpers.h"
#include "third_party/blink/renderer/core/animation/document_timeline.h"
#include "third_party/blink/renderer/core/html/html_div_element.h"
#include "third_party/blink/renderer/core/testing/core_unit_test_helper.h"
#include "third_party/blink/renderer/platform/heap/heap.h"
namespace blink {
namespace {
HeapVector<Member<ScrollTimelineOffset>>* CreateScrollOffsets(
ScrollTimelineOffset* start_scroll_offset,
ScrollTimelineOffset* end_scroll_offset) {
HeapVector<Member<ScrollTimelineOffset>>* scroll_offsets =
MakeGarbageCollected<HeapVector<Member<ScrollTimelineOffset>>>();
scroll_offsets->push_back(start_scroll_offset);
scroll_offsets->push_back(end_scroll_offset);
return scroll_offsets;
}
} // namespace
namespace scroll_timeline_util {
using ScrollTimelineUtilTest = PageTestBase;
// This test covers only the basic conversions for element id, time range,
// orientation, and start and end scroll offset. Complex orientation conversions
// are tested in the GetOrientation* tests, and complex start/end scroll offset
// resolutions are tested in blink::ScrollTimelineTest.
TEST_F(ScrollTimelineUtilTest, ToCompositorScrollTimeline) {
using animation_test_helpers::OffsetFromString;
SetBodyInnerHTML(R"HTML(
<style>
#scroller {
overflow: auto;
width: 100px;
height: 100px;
}
#contents {
height: 1000px;
}
</style>
<div id='scroller'><div id='contents'></div></div>
)HTML");
Element* scroller = GetElementById("scroller");
base::Optional<CompositorElementId> element_id =
GetCompositorScrollElementId(scroller);
ASSERT_TRUE(element_id.has_value());
ScrollTimelineOptions* options = ScrollTimelineOptions::Create();
options->setScrollSource(scroller);
const double time_range = 100;
options->setTimeRange(
DoubleOrScrollTimelineAutoKeyword::FromDouble(time_range));
options->setOrientation("block");
options->setStartScrollOffset(OffsetFromString(GetDocument(), "50px"));
options->setEndScrollOffset(OffsetFromString(GetDocument(), "auto"));
ScrollTimeline* timeline =
ScrollTimeline::Create(GetDocument(), options, ASSERT_NO_EXCEPTION);
scoped_refptr<CompositorScrollTimeline> compositor_timeline =
ToCompositorScrollTimeline(timeline);
EXPECT_EQ(compositor_timeline->GetActiveIdForTest(), base::nullopt);
EXPECT_EQ(compositor_timeline->GetPendingIdForTest(), element_id);
EXPECT_EQ(compositor_timeline->GetTimeRangeForTest(), time_range);
EXPECT_EQ(compositor_timeline->GetDirectionForTest(),
CompositorScrollTimeline::ScrollDown);
EXPECT_EQ(compositor_timeline->GetStartScrollOffsetForTest(), 50);
// 900 is contents-size - scroller-viewport == 1000 - 100
EXPECT_EQ(compositor_timeline->GetEndScrollOffsetForTest(), 900);
}
TEST_F(ScrollTimelineUtilTest, ToCompositorScrollTimelineNullParameter) {
EXPECT_EQ(ToCompositorScrollTimeline(nullptr), nullptr);
}
TEST_F(ScrollTimelineUtilTest,
ToCompositorScrollTimelineDocumentTimelineParameter) {
DocumentTimeline* timeline =
MakeGarbageCollected<DocumentTimeline>(Document::CreateForTest());
EXPECT_EQ(ToCompositorScrollTimeline(timeline), nullptr);
}
TEST_F(ScrollTimelineUtilTest, ToCompositorScrollTimelineNullScrollSource) {
// Directly call the constructor to make it easier to pass a null
// scrollSource. The alternative approach would require us to remove the
// documentElement from the document.
Element* scroll_source = nullptr;
ScrollTimelineOffset* start_scroll_offset =
MakeGarbageCollected<ScrollTimelineOffset>();
ScrollTimelineOffset* end_scroll_offset =
MakeGarbageCollected<ScrollTimelineOffset>();
ScrollTimeline* timeline = MakeGarbageCollected<ScrollTimeline>(
&GetDocument(), scroll_source, ScrollTimeline::Block,
CreateScrollOffsets(start_scroll_offset, end_scroll_offset), 100);
scoped_refptr<CompositorScrollTimeline> compositor_timeline =
ToCompositorScrollTimeline(timeline);
ASSERT_TRUE(compositor_timeline.get());
EXPECT_EQ(compositor_timeline->GetPendingIdForTest(), base::nullopt);
}
TEST_F(ScrollTimelineUtilTest, ToCompositorScrollTimelineNullLayoutBox) {
auto* div = MakeGarbageCollected<HTMLDivElement>(GetDocument());
ASSERT_FALSE(div->GetLayoutBox());
ScrollTimelineOptions* options = ScrollTimelineOptions::Create();
DoubleOrScrollTimelineAutoKeyword time_range =
DoubleOrScrollTimelineAutoKeyword::FromDouble(100);
options->setTimeRange(time_range);
options->setScrollSource(div);
ScrollTimeline* timeline =
ScrollTimeline::Create(GetDocument(), options, ASSERT_NO_EXCEPTION);
scoped_refptr<CompositorScrollTimeline> compositor_timeline =
ToCompositorScrollTimeline(timeline);
EXPECT_TRUE(compositor_timeline.get());
// Here we just want to test the start/end scroll offset.
// ToCompositorScrollTimelineNullScrollSource covers the expected pending id
// and ConvertOrientationNullStyle covers the orientation conversion.
EXPECT_EQ(compositor_timeline->GetStartScrollOffsetForTest(), base::nullopt);
EXPECT_EQ(compositor_timeline->GetEndScrollOffsetForTest(), base::nullopt);
}
TEST_F(ScrollTimelineUtilTest, ConvertOrientationPhysicalCases) {
// For physical the writing-mode and directionality shouldn't matter, so make
// sure it doesn't.
Vector<WritingMode> writing_modes = {WritingMode::kHorizontalTb,
WritingMode::kVerticalLr,
WritingMode::kVerticalRl};
Vector<TextDirection> directions = {TextDirection::kLtr, TextDirection::kRtl};
scoped_refptr<ComputedStyle> style = ComputedStyle::Create();
for (const WritingMode& writing_mode : writing_modes) {
for (const TextDirection& direction : directions) {
style->SetWritingMode(writing_mode);
style->SetDirection(direction);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Vertical, style.get()),
CompositorScrollTimeline::ScrollDown);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Horizontal, style.get()),
CompositorScrollTimeline::ScrollRight);
}
}
}
TEST_F(ScrollTimelineUtilTest, ConvertOrientationLogical) {
scoped_refptr<ComputedStyle> style = ComputedStyle::Create();
// horizontal-tb, ltr
style->SetWritingMode(WritingMode::kHorizontalTb);
style->SetDirection(TextDirection::kLtr);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Block, style.get()),
CompositorScrollTimeline::ScrollDown);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Inline, style.get()),
CompositorScrollTimeline::ScrollRight);
// vertical-lr, ltr
style->SetWritingMode(WritingMode::kVerticalLr);
style->SetDirection(TextDirection::kLtr);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Block, style.get()),
CompositorScrollTimeline::ScrollRight);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Inline, style.get()),
CompositorScrollTimeline::ScrollDown);
// vertical-rl, ltr
style->SetWritingMode(WritingMode::kVerticalRl);
style->SetDirection(TextDirection::kLtr);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Block, style.get()),
CompositorScrollTimeline::ScrollLeft);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Inline, style.get()),
CompositorScrollTimeline::ScrollDown);
// horizontal-tb, rtl
style->SetWritingMode(WritingMode::kHorizontalTb);
style->SetDirection(TextDirection::kRtl);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Block, style.get()),
CompositorScrollTimeline::ScrollDown);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Inline, style.get()),
CompositorScrollTimeline::ScrollLeft);
// vertical-lr, rtl
style->SetWritingMode(WritingMode::kVerticalLr);
style->SetDirection(TextDirection::kRtl);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Block, style.get()),
CompositorScrollTimeline::ScrollRight);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Inline, style.get()),
CompositorScrollTimeline::ScrollUp);
// vertical-rl, rtl
style->SetWritingMode(WritingMode::kVerticalRl);
style->SetDirection(TextDirection::kRtl);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Block, style.get()),
CompositorScrollTimeline::ScrollLeft);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Inline, style.get()),
CompositorScrollTimeline::ScrollUp);
}
TEST_F(ScrollTimelineUtilTest, ConvertOrientationNullStyle) {
// When the style is nullptr we assume horizontal-tb and ltr direction. This
// means that block is ScrollDown and inline is ScrollRight
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Vertical, nullptr),
CompositorScrollTimeline::ScrollDown);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Horizontal, nullptr),
CompositorScrollTimeline::ScrollRight);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Block, nullptr),
CompositorScrollTimeline::ScrollDown);
EXPECT_EQ(ConvertOrientation(ScrollTimeline::Inline, nullptr),
CompositorScrollTimeline::ScrollRight);
}
TEST_F(ScrollTimelineUtilTest, GetCompositorScrollElementIdNullNode) {
EXPECT_EQ(GetCompositorScrollElementId(nullptr), base::nullopt);
}
TEST_F(ScrollTimelineUtilTest, GetCompositorScrollElementIdNullLayoutObject) {
auto* div = MakeGarbageCollected<HTMLDivElement>(GetDocument());
ASSERT_FALSE(div->GetLayoutObject());
EXPECT_EQ(GetCompositorScrollElementId(nullptr), base::nullopt);
}
TEST_F(ScrollTimelineUtilTest, GetCompositorScrollElementIdNoUniqueId) {
SetBodyInnerHTML("<div id='test'></div>");
Element* test = GetElementById("test");
ASSERT_TRUE(test->GetLayoutObject());
EXPECT_EQ(GetCompositorScrollElementId(test), base::nullopt);
}
} // namespace scroll_timeline_util
} // namespace blink
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