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// Copyright 2021 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 "base/callback.h"
#include "base/timer/lap_timer.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/perf/perf_result_reporter.h"
#include "third_party/blink/public/common/input/web_mouse_event.h"
#include "third_party/blink/renderer/core/input/event_handler.h"
#include "third_party/blink/renderer/core/input/event_handling_util.h"
#include "third_party/blink/renderer/core/layout/svg/svg_layout_support.h"
#include "third_party/blink/renderer/core/layout/svg/transformed_hit_test_location.h"
#include "third_party/blink/renderer/core/testing/core_unit_test_helper.h"
namespace blink {
namespace {
constexpr int kLaps = 5000;
constexpr int kWarmupLaps = 5;
constexpr char kMetricCallsPerSecondRunsPerS[] = "calls_per_second";
constexpr float kSvgWidth = 800.0f;
constexpr float kSvgHeight = 600.0f;
class SvgHitTestPerfTest : public RenderingTest {
public:
perf_test::PerfResultReporter SetUpReporter(const std::string& story) {
perf_test::PerfResultReporter reporter("SvgHitTestPerfTest.", story);
reporter.RegisterImportantMetric(kMetricCallsPerSecondRunsPerS, "runs/s");
return reporter;
}
void SetupSvgHitTest() {
constexpr size_t num_rows = 10;
constexpr size_t num_columns = 10;
constexpr size_t num_group_nodes_per_leaf = 100;
constexpr float row_stride = kSvgHeight / num_rows;
constexpr float column_stride = kSvgWidth / num_rows;
WTF::StringBuilder html;
html.AppendFormat(
"<svg width='%.2f' height='%.2f' viewBox='0 0 %.2f %.2f' "
"style='cursor: auto;'>",
kSvgWidth, kSvgHeight, kSvgWidth, kSvgHeight);
for (size_t row = 0; row < num_rows; ++row) {
for (size_t column = 0; column < num_columns; ++column) {
for (size_t i = 0; i < num_group_nodes_per_leaf; ++i)
html.Append("<g>");
html.AppendFormat(
"<rect id='leaf_%zu' x='%.2f' y='%.2f' width='%.2f' height='%.2f' "
"/>",
column * row, column * column_stride, row * row_stride,
column_stride, row_stride);
for (size_t i = 0; i < num_group_nodes_per_leaf; ++i)
html.Append("</g>");
}
}
html.Append("</svg>");
SetBodyInnerHTML(html.ToString());
}
void RunTest(const std::string& story,
base::RepeatingCallback<void()> test_case) {
base::LapTimer timer(kWarmupLaps, base::TimeDelta(), kLaps);
for (int i = 0; i < kLaps + kWarmupLaps; ++i) {
test_case.Run();
timer.NextLap();
}
auto reporter = SetUpReporter(story);
reporter.AddResult(kMetricCallsPerSecondRunsPerS, timer.LapsPerSecond());
}
};
} // namespace
TEST_F(SvgHitTestPerfTest, HandleMouseMoveEvent) {
SetupSvgHitTest();
EventHandler& event_handler = GetDocument().GetFrame()->GetEventHandler();
RunTest("HandleMouseMoveEvent",
WTF::BindRepeating(
[](EventHandler& event_handler) {
WebMouseEvent mouse_move_event(
WebMouseEvent::Type::kMouseMove, gfx::PointF(1, 1),
gfx::PointF(1, 1), WebPointerProperties::Button::kNoButton,
0, WebInputEvent::Modifiers::kNoModifiers,
WebInputEvent::GetStaticTimeStampForTests());
mouse_move_event.SetFrameScale(1);
event_handler.HandleMouseMoveEvent(mouse_move_event,
Vector<WebMouseEvent>(),
Vector<WebMouseEvent>());
},
std::ref(event_handler)));
}
TEST_F(SvgHitTestPerfTest, IntersectsClipPath) {
SetupSvgHitTest();
LayoutObject* leaf_0_layout_object = GetLayoutObjectByElementId("leaf_0");
ASSERT_NE(leaf_0_layout_object, nullptr);
LayoutObject* container = leaf_0_layout_object->Parent();
PhysicalOffset document_point =
event_handling_util::ContentPointFromRootFrame(GetDocument().GetFrame(),
FloatPoint(1, 1));
TransformedHitTestLocation local_location(
HitTestLocation(document_point), container->LocalToSVGParentTransform());
ASSERT_TRUE(local_location);
FloatRect object_bounding_box = container->ObjectBoundingBox();
RunTest(
"IntersectsClipPath",
WTF::BindRepeating(
[](const LayoutObject* container, FloatRect& container_bounding_box,
TransformedHitTestLocation& local_location) {
SVGLayoutSupport::IntersectsClipPath(
*container, container_bounding_box, *local_location);
},
WTF::Unretained(container), std::ref(object_bounding_box),
std::ref(local_location)));
}
} // namespace blink
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