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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/views/animation/square_ink_drop_ripple.h"
#include <memory>
#include <vector>
#include "base/numerics/safe_conversions.h"
#include "base/time/time.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/compositor/compositor.h"
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/geometry/size_f.h"
#include "ui/views/animation/ink_drop_ripple_observer.h"
#include "ui/views/animation/ink_drop_state.h"
#include "ui/views/animation/test/square_ink_drop_ripple_test_api.h"
#include "ui/views/animation/test/test_ink_drop_ripple_observer.h"
#include "ui/views/test/widget_test.h"
namespace views::test {
namespace {
using PaintedShape = views::test::SquareInkDropRippleTestApi::PaintedShape;
class SquareInkDropRippleCalculateTransformsTest : public WidgetTest {
public:
SquareInkDropRippleCalculateTransformsTest();
SquareInkDropRippleCalculateTransformsTest(
const SquareInkDropRippleCalculateTransformsTest&) = delete;
SquareInkDropRippleCalculateTransformsTest& operator=(
const SquareInkDropRippleCalculateTransformsTest&) = delete;
~SquareInkDropRippleCalculateTransformsTest() override;
protected:
// Half the width/height of the drawn ink drop.
static constexpr int kHalfDrawnSize = 5;
// The full width/height of the drawn ink drop.
static constexpr int kDrawnSize = 2 * kHalfDrawnSize;
// The radius of the rounded rectangle corners.
static constexpr int kTransformedRadius = 10;
// Half the width/height of the transformed ink drop.
static const int kHalfTransformedSize = 100;
// The full width/height of the transformed ink drop.
static const int kTransformedSize = 2 * kHalfTransformedSize;
// Constant points in the drawn space that will be transformed.
static constexpr gfx::Point kDrawnCenterPoint =
gfx::Point(kHalfDrawnSize, kHalfDrawnSize);
static constexpr gfx::Point kDrawnMidLeftPoint =
gfx::Point(0, kHalfDrawnSize);
static constexpr gfx::Point kDrawnMidRightPoint =
gfx::Point(kDrawnSize, kHalfDrawnSize);
static constexpr gfx::Point kDrawnTopMidPoint = gfx::Point(kHalfDrawnSize, 0);
static constexpr gfx::Point kDrawnBottomMidPoint =
gfx::Point(kHalfDrawnSize, kDrawnSize);
// The test target.
SquareInkDropRipple ink_drop_ripple_{
nullptr,
gfx::Size(kDrawnSize, kDrawnSize),
2,
gfx::Size(kHalfDrawnSize, kHalfDrawnSize),
1,
gfx::Point(),
SK_ColorBLACK,
0.175f};
// Provides internal access to the test target.
SquareInkDropRippleTestApi test_api_{&ink_drop_ripple_};
// The gfx::Transforms collection that is populated via the
// Calculate*Transforms() calls.
SquareInkDropRippleTestApi::InkDropTransforms transforms_;
};
SquareInkDropRippleCalculateTransformsTest::
SquareInkDropRippleCalculateTransformsTest() = default;
SquareInkDropRippleCalculateTransformsTest::
~SquareInkDropRippleCalculateTransformsTest() = default;
constexpr gfx::Point
SquareInkDropRippleCalculateTransformsTest::kDrawnCenterPoint;
constexpr gfx::Point
SquareInkDropRippleCalculateTransformsTest::kDrawnMidLeftPoint;
constexpr gfx::Point
SquareInkDropRippleCalculateTransformsTest::kDrawnMidRightPoint;
constexpr gfx::Point
SquareInkDropRippleCalculateTransformsTest::kDrawnTopMidPoint;
constexpr gfx::Point
SquareInkDropRippleCalculateTransformsTest::kDrawnBottomMidPoint;
} // namespace
TEST_F(SquareInkDropRippleCalculateTransformsTest,
TransformedPointsUsingTransformsFromCalculateCircleTransforms) {
test_api_.CalculateCircleTransforms(
gfx::Size(kTransformedSize, kTransformedSize), &transforms_);
constexpr struct {
PaintedShape shape;
gfx::Point center_point;
gfx::Point mid_left_point;
gfx::Point mid_right_point;
gfx::Point top_mid_point;
gfx::Point bottom_mid_point;
} test_cases[] = {
{PaintedShape::TOP_LEFT_CIRCLE, gfx::Point(0, 0),
gfx::Point(-kHalfTransformedSize, 0),
gfx::Point(kHalfTransformedSize, 0),
gfx::Point(0, -kHalfTransformedSize),
gfx::Point(0, kHalfTransformedSize)},
{PaintedShape::TOP_RIGHT_CIRCLE, gfx::Point(0, 0),
gfx::Point(-kHalfTransformedSize, 0),
gfx::Point(kHalfTransformedSize, 0),
gfx::Point(0, -kHalfTransformedSize),
gfx::Point(0, kHalfTransformedSize)},
{PaintedShape::BOTTOM_RIGHT_CIRCLE, gfx::Point(0, 0),
gfx::Point(-kHalfTransformedSize, 0),
gfx::Point(kHalfTransformedSize, 0),
gfx::Point(0, -kHalfTransformedSize),
gfx::Point(0, kHalfTransformedSize)},
{PaintedShape::BOTTOM_LEFT_CIRCLE, gfx::Point(0, 0),
gfx::Point(-kHalfTransformedSize, 0),
gfx::Point(kHalfTransformedSize, 0),
gfx::Point(0, -kHalfTransformedSize),
gfx::Point(0, kHalfTransformedSize)},
{PaintedShape::HORIZONTAL_RECT, gfx::Point(0, 0),
gfx::Point(-kHalfTransformedSize, 0),
gfx::Point(kHalfTransformedSize, 0), gfx::Point(0, 0), gfx::Point(0, 0)},
{PaintedShape::VERTICAL_RECT, gfx::Point(0, 0), gfx::Point(0, 0),
gfx::Point(0, 0), gfx::Point(0, -kHalfTransformedSize),
gfx::Point(0, kHalfTransformedSize)}};
for (const auto& test_case : test_cases) {
PaintedShape shape = test_case.shape;
SCOPED_TRACE(testing::Message() << " shape=" << shape);
gfx::Transform transform = transforms_[shape];
EXPECT_EQ(test_case.center_point, transform.MapPoint(kDrawnCenterPoint));
EXPECT_EQ(test_case.mid_left_point, transform.MapPoint(kDrawnMidLeftPoint));
EXPECT_EQ(test_case.mid_right_point,
transform.MapPoint(kDrawnMidRightPoint));
EXPECT_EQ(test_case.top_mid_point, transform.MapPoint(kDrawnTopMidPoint));
EXPECT_EQ(test_case.bottom_mid_point,
transform.MapPoint(kDrawnBottomMidPoint));
}
}
TEST_F(SquareInkDropRippleCalculateTransformsTest,
TransformedPointsUsingTransformsFromCalculateRectTransforms) {
test_api_.CalculateRectTransforms(
gfx::Size(kTransformedSize, kTransformedSize), kTransformedRadius,
&transforms_);
constexpr int x_offset = kHalfTransformedSize - kTransformedRadius;
constexpr int y_offset = kHalfTransformedSize - kTransformedRadius;
constexpr struct {
PaintedShape shape;
gfx::Point center_point;
gfx::Point mid_left_point;
gfx::Point mid_right_point;
gfx::Point top_mid_point;
gfx::Point bottom_mid_point;
} test_cases[] = {
{PaintedShape::TOP_LEFT_CIRCLE, gfx::Point(-x_offset, -y_offset),
gfx::Point(-kHalfTransformedSize, -y_offset),
gfx::Point(-x_offset + kTransformedRadius, -y_offset),
gfx::Point(-x_offset, -kHalfTransformedSize),
gfx::Point(-x_offset, -y_offset + kTransformedRadius)},
{PaintedShape::TOP_RIGHT_CIRCLE, gfx::Point(x_offset, -y_offset),
gfx::Point(x_offset - kTransformedRadius, -y_offset),
gfx::Point(kHalfTransformedSize, -y_offset),
gfx::Point(x_offset, -kHalfTransformedSize),
gfx::Point(x_offset, -y_offset + kTransformedRadius)},
{PaintedShape::BOTTOM_RIGHT_CIRCLE, gfx::Point(x_offset, y_offset),
gfx::Point(x_offset - kTransformedRadius, y_offset),
gfx::Point(kHalfTransformedSize, y_offset),
gfx::Point(x_offset, y_offset - kTransformedRadius),
gfx::Point(x_offset, kHalfTransformedSize)},
{PaintedShape::BOTTOM_LEFT_CIRCLE, gfx::Point(-x_offset, y_offset),
gfx::Point(-kHalfTransformedSize, y_offset),
gfx::Point(-x_offset + kTransformedRadius, y_offset),
gfx::Point(-x_offset, y_offset - kTransformedRadius),
gfx::Point(-x_offset, kHalfTransformedSize)},
{PaintedShape::HORIZONTAL_RECT, gfx::Point(0, 0),
gfx::Point(-kHalfTransformedSize, 0),
gfx::Point(kHalfTransformedSize, 0), gfx::Point(0, -y_offset),
gfx::Point(0, y_offset)},
{PaintedShape::VERTICAL_RECT, gfx::Point(0, 0), gfx::Point(-x_offset, 0),
gfx::Point(x_offset, 0), gfx::Point(0, -kHalfTransformedSize),
gfx::Point(0, kHalfTransformedSize)}};
for (const auto& test_case : test_cases) {
PaintedShape shape = test_case.shape;
SCOPED_TRACE(testing::Message() << " shape=" << shape);
gfx::Transform transform = transforms_[shape];
EXPECT_EQ(test_case.center_point, transform.MapPoint(kDrawnCenterPoint));
EXPECT_EQ(test_case.mid_left_point, transform.MapPoint(kDrawnMidLeftPoint));
EXPECT_EQ(test_case.mid_right_point,
transform.MapPoint(kDrawnMidRightPoint));
EXPECT_EQ(test_case.top_mid_point, transform.MapPoint(kDrawnTopMidPoint));
EXPECT_EQ(test_case.bottom_mid_point,
transform.MapPoint(kDrawnBottomMidPoint));
}
}
TEST_F(SquareInkDropRippleCalculateTransformsTest, RippleIsPixelAligned) {
// Create a ripple that would not naturally be pixel aligned at a fractional
// scale factor.
constexpr gfx::Point kCenter(14, 14);
constexpr gfx::Rect kDrawnRectBounds(0, 0, 10, 10);
SquareInkDropRipple ink_drop_ripple(nullptr, kDrawnRectBounds.size(), 2,
gfx::Size(1, 1), // unimportant
1, kCenter, SK_ColorBLACK, 0.175f);
SquareInkDropRippleTestApi test_api(&ink_drop_ripple);
// Add to a widget so we can control the DSF.
auto* widget = CreateTopLevelPlatformWidget();
widget->SetBounds(gfx::Rect(0, 0, 100, 100));
auto* host_view =
widget->GetContentsView()->AddChildView(std::make_unique<View>());
host_view->SetPaintToLayer();
host_view->layer()->Add(ink_drop_ripple.GetRootLayer());
// Test a variety of scale factors and target transform sizes.
const std::vector<float> dsfs({1.0f, 1.25f, 1.5f, 2.0f, 3.0f});
const std::vector<int> target_sizes({5, 7, 11, 13, 31});
for (float dsf : dsfs) {
for (int target_size : target_sizes) {
SCOPED_TRACE(testing::Message()
<< "target_size=" << target_size << " dsf=" << dsf);
host_view->layer()->GetCompositor()->SetScaleAndSize(
dsf, gfx::Size(100, 100), viz::LocalSurfaceId());
SquareInkDropRippleTestApi::InkDropTransforms transforms;
test_api.CalculateRectTransforms(gfx::Size(target_size, target_size), 0,
&transforms);
// Checks that a rectangle is integer-aligned modulo floating point error.
auto verify_bounds = [](const gfx::RectF& rect) {
float float_min_x = rect.x();
float float_min_y = rect.y();
float float_max_x = rect.right();
float float_max_y = rect.bottom();
int min_x = base::ClampRound(float_min_x);
int min_y = base::ClampRound(float_min_y);
int max_x = base::ClampRound(float_max_x);
int max_y = base::ClampRound(float_max_y);
EXPECT_LT(std::abs(min_x - float_min_x), 0.01f);
EXPECT_LT(std::abs(min_y - float_min_y), 0.01f);
EXPECT_LT(std::abs(max_x - float_max_x), 0.01f);
EXPECT_LT(std::abs(max_y - float_max_y), 0.01f);
};
// When you feed in the bounds of the rectangle layer delegate, no matter
// what the target size was you should get an integer aligned bounding
// box.
gfx::Transform transform = transforms[PaintedShape::HORIZONTAL_RECT];
gfx::RectF horizontal_rect =
transform.MapRect(gfx::RectF(kDrawnRectBounds));
horizontal_rect.Scale(dsf);
verify_bounds(horizontal_rect);
transform = transforms[PaintedShape::VERTICAL_RECT];
gfx::RectF vertical_rect =
transform.MapRect(gfx::RectF(kDrawnRectBounds));
vertical_rect.Scale(dsf);
verify_bounds(vertical_rect);
}
}
widget->CloseNow();
}
} // namespace views::test
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