Implemented prototype for new ink drop specs.

ui/views/animation/ink_drop_animation_unittest.cc

Index: ui/views/animation/ink_drop_animation_unittest.cc
diff --git a/ui/views/animation/ink_drop_animation_unittest.cc b/ui/views/animation/ink_drop_animation_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..478013589e4ee56af4824df932f5a5a6866e1a15
--- /dev/null
+++ b/ui/views/animation/ink_drop_animation_unittest.cc
@@ -0,0 +1,301 @@
+// Copyright 2015 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.
+
+#ifndef UI_VIEWS_ANIMATION_INK_DROP_ANIMATION_UNITTEST_H_
+#define UI_VIEWS_ANIMATION_INK_DROP_ANIMATION_UNITTEST_H_
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/gfx/geometry/size.h"
+#include "ui/gfx/geometry/size_f.h"
+#include "ui/views/animation/ink_drop_animation.h"
+#include "ui/views/animation/ink_drop_state.h"
+#include "ui/views/animation/test/ink_drop_animation_test_api.h"
+
+namespace views {
+namespace test {
+
+namespace {
+
+// Transforms a copy of |point| with |transform| and returns it.
+gfx::Point TransformPoint(const gfx::Transform& transform,
+                          const gfx::Point& point) {
+  gfx::Point transformed_point = point;
+  transform.TransformPoint(&transformed_point);
+  return transformed_point;
+}
+
+}  // namespace
+
+class InkDropAnimationTest : public testing::Test {
+ public:
+  InkDropAnimationTest() {}
+  ~InkDropAnimationTest() override {}
+
+ protected:
+  scoped_ptr<InkDropAnimation> CreateInkDropAnimation() const;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(InkDropAnimationTest);
+};
+
+// Returns a new InkDropAnimation with default parameters.
+scoped_ptr<InkDropAnimation> InkDropAnimationTest::CreateInkDropAnimation()
+    const {
+  return make_scoped_ptr(
+      new InkDropAnimation(gfx::Size(10, 10), 2, gfx::Size(8, 8), 1));
+}
+
+TEST_F(InkDropAnimationTest, InitialStateAfterConstruction) {
+  scoped_ptr<InkDropAnimation> ink_drop_animation = CreateInkDropAnimation();
+  EXPECT_EQ(views::InkDropState::HIDDEN, ink_drop_animation->ink_drop_state());
+}
+
+TEST_F(InkDropAnimationTest, AnimateToActionPending) {
+  scoped_ptr<InkDropAnimation> ink_drop_animation = CreateInkDropAnimation();
+  ink_drop_animation->AnimateToState(views::InkDropState::ACTION_PENDING);
+  EXPECT_EQ(views::InkDropState::ACTION_PENDING,
+            ink_drop_animation->ink_drop_state());
+}
+
+TEST_F(InkDropAnimationTest, AnimateToQuickAction) {
+  scoped_ptr<InkDropAnimation> ink_drop_animation = CreateInkDropAnimation();
+  ink_drop_animation->AnimateToState(views::InkDropState::QUICK_ACTION);
+  EXPECT_EQ(views::InkDropState::HIDDEN, ink_drop_animation->ink_drop_state());
+}
+
+TEST_F(InkDropAnimationTest, AnimateToSlowActionPending) {
+  scoped_ptr<InkDropAnimation> ink_drop_animation = CreateInkDropAnimation();
+  ink_drop_animation->AnimateToState(views::InkDropState::SLOW_ACTION_PENDING);
+  EXPECT_EQ(views::InkDropState::SLOW_ACTION_PENDING,
+            ink_drop_animation->ink_drop_state());
+}
+
+TEST_F(InkDropAnimationTest, AnimateToSlowAction) {
+  scoped_ptr<InkDropAnimation> ink_drop_animation = CreateInkDropAnimation();
+  ink_drop_animation->AnimateToState(views::InkDropState::SLOW_ACTION);
+  EXPECT_EQ(views::InkDropState::HIDDEN, ink_drop_animation->ink_drop_state());
+}
+
+TEST_F(InkDropAnimationTest, AnimateToActivated) {
+  scoped_ptr<InkDropAnimation> ink_drop_animation = CreateInkDropAnimation();
+  ink_drop_animation->AnimateToState(views::InkDropState::ACTIVATED);
+  EXPECT_EQ(views::InkDropState::ACTIVATED,
+            ink_drop_animation->ink_drop_state());
+}
+
+TEST_F(InkDropAnimationTest, AnimateToDeactivated) {
+  scoped_ptr<InkDropAnimation> ink_drop_animation = CreateInkDropAnimation();
+  ink_drop_animation->AnimateToState(views::InkDropState::DEACTIVATED);
+  EXPECT_EQ(views::InkDropState::HIDDEN, ink_drop_animation->ink_drop_state());
+}
+
+TEST_F(InkDropAnimationTest,
+       TransformedPointsUsingTransformsFromCalculateCircleTransforms) {
+  const int kHalfDrawnSize = 5;
+  const int kDrawnSize = 2 * kHalfDrawnSize;
+
+  const int kHalfTransformedSize = 100;
+  const int kTransformedSize = 2 * kHalfTransformedSize;
+
+  // Constant points in the drawn space that will be transformed.
+  const gfx::Point center(kHalfDrawnSize, kHalfDrawnSize);
+  const gfx::Point mid_left(0, kHalfDrawnSize);
+  const gfx::Point mid_right(kDrawnSize, kHalfDrawnSize);
+  const gfx::Point top_mid(kHalfDrawnSize, 0);
+  const gfx::Point bottom_mid(kHalfDrawnSize, kDrawnSize);
+
+  scoped_ptr<InkDropAnimation> ink_drop_animation(
+      new InkDropAnimation(gfx::Size(kDrawnSize, kDrawnSize), 2,
+                           gfx::Size(kHalfDrawnSize, kHalfDrawnSize), 1));
+  InkDropAnimationTestApi test_api(ink_drop_animation.get());
+
+  InkDropAnimationTestApi::InkDropTransforms transforms;
+  test_api.CalculateCircleTransforms(
+      gfx::SizeF(kTransformedSize, kTransformedSize), &transforms);
+
+  // Transform variables to reduce verbosity of actual verification code.
+  const gfx::Transform kTopLeftTransform =
+      transforms[InkDropAnimationTestApi::PaintedShape::TOP_LEFT_CIRCLE];
+  const gfx::Transform kTopRightTransform =
+      transforms[InkDropAnimationTestApi::PaintedShape::TOP_RIGHT_CIRCLE];
+  const gfx::Transform kBottomRightTransform =
+      transforms[InkDropAnimationTestApi::PaintedShape::BOTTOM_RIGHT_CIRCLE];
+  const gfx::Transform kBottomLeftTransform =
+      transforms[InkDropAnimationTestApi::PaintedShape::BOTTOM_LEFT_CIRCLE];
+  const gfx::Transform kHorizontalTransform =
+      transforms[InkDropAnimationTestApi::PaintedShape::HORIZONTAL_RECT];
+  const gfx::Transform kVerticalTransform =
+      transforms[InkDropAnimationTestApi::PaintedShape::VERTICAL_RECT];
+
+  // Top left circle
+  EXPECT_EQ(gfx::Point(0, 0), TransformPoint(kTopLeftTransform, center));
+  EXPECT_EQ(gfx::Point(-kHalfTransformedSize, 0),
+            TransformPoint(kTopLeftTransform, mid_left));
+  EXPECT_EQ(gfx::Point(kHalfTransformedSize, 0),
+            TransformPoint(kTopLeftTransform, mid_right));
+  EXPECT_EQ(gfx::Point(0, -kHalfTransformedSize),
+            TransformPoint(kTopLeftTransform, top_mid));
+  EXPECT_EQ(gfx::Point(0, kHalfTransformedSize),
+            TransformPoint(kTopLeftTransform, bottom_mid));
+
+  // Top right circle
+  EXPECT_EQ(gfx::Point(0, 0), TransformPoint(kTopRightTransform, center));
+  EXPECT_EQ(gfx::Point(-kHalfTransformedSize, 0),
+            TransformPoint(kTopRightTransform, mid_left));
+  EXPECT_EQ(gfx::Point(kHalfTransformedSize, 0),
+            TransformPoint(kTopRightTransform, mid_right));
+  EXPECT_EQ(gfx::Point(0, -kHalfTransformedSize),
+            TransformPoint(kTopRightTransform, top_mid));
+  EXPECT_EQ(gfx::Point(0, kHalfTransformedSize),
+            TransformPoint(kTopRightTransform, bottom_mid));
+
+  // Bottom right circle
+  EXPECT_EQ(gfx::Point(0, 0), TransformPoint(kBottomRightTransform, center));
+  EXPECT_EQ(gfx::Point(-kHalfTransformedSize, 0),
+            TransformPoint(kBottomRightTransform, mid_left));
+  EXPECT_EQ(gfx::Point(kHalfTransformedSize, 0),
+            TransformPoint(kBottomRightTransform, mid_right));
+  EXPECT_EQ(gfx::Point(0, -kHalfTransformedSize),
+            TransformPoint(kBottomRightTransform, top_mid));
+  EXPECT_EQ(gfx::Point(0, kHalfTransformedSize),
+            TransformPoint(kBottomRightTransform, bottom_mid));
+
+  // Bottom left circle
+  EXPECT_EQ(gfx::Point(0, 0), TransformPoint(kBottomLeftTransform, center));
+  EXPECT_EQ(gfx::Point(-kHalfTransformedSize, 0),
+            TransformPoint(kBottomLeftTransform, mid_left));
+  EXPECT_EQ(gfx::Point(kHalfTransformedSize, 0),
+            TransformPoint(kBottomLeftTransform, mid_right));
+  EXPECT_EQ(gfx::Point(0, -kHalfTransformedSize),
+            TransformPoint(kBottomLeftTransform, top_mid));
+  EXPECT_EQ(gfx::Point(0, kHalfTransformedSize),
+            TransformPoint(kBottomLeftTransform, bottom_mid));
+
+  // Horizontal rectangle
+  EXPECT_EQ(gfx::Point(0, 0), TransformPoint(kHorizontalTransform, center));
+  EXPECT_EQ(gfx::Point(-kHalfTransformedSize, 0),
+            TransformPoint(kHorizontalTransform, mid_left));
+  EXPECT_EQ(gfx::Point(kHalfTransformedSize, 0),
+            TransformPoint(kHorizontalTransform, mid_right));
+  EXPECT_EQ(gfx::Point(0, 0), TransformPoint(kHorizontalTransform, top_mid));
+  EXPECT_EQ(gfx::Point(0, 0), TransformPoint(kHorizontalTransform, bottom_mid));
+
+  // Vertical rectangle
+  EXPECT_EQ(gfx::Point(0, 0), TransformPoint(kVerticalTransform, center));
+  EXPECT_EQ(gfx::Point(0, 0), TransformPoint(kVerticalTransform, mid_left));
+  EXPECT_EQ(gfx::Point(0, 0), TransformPoint(kVerticalTransform, mid_right));
+  EXPECT_EQ(gfx::Point(0, -kHalfTransformedSize),
+            TransformPoint(kVerticalTransform, top_mid));
+  EXPECT_EQ(gfx::Point(0, kHalfTransformedSize),
+            TransformPoint(kVerticalTransform, bottom_mid));
+}
+
+TEST_F(InkDropAnimationTest,
+       TransformedPointsUsingTransformsFromCalculateRectTransforms) {
+  const int kHalfDrawnSize = 5;
+  const int kDrawnSize = 2 * kHalfDrawnSize;
+
+  const int kTransformedRadius = 10;
+
+  const int kHalfTransformedWidth = 100;
+  const int kTransformedWidth = 2 * kHalfTransformedWidth;
+
+  const int kHalfTransformedHeight = 100;
+  const int kTransformedHeight = 2 * kHalfTransformedHeight;
+
+  // Constant points in the drawn space that will be transformed.
+  const gfx::Point center(kHalfDrawnSize, kHalfDrawnSize);
+  const gfx::Point mid_left(0, kHalfDrawnSize);
+  const gfx::Point mid_right(kDrawnSize, kHalfDrawnSize);
+  const gfx::Point top_mid(kHalfDrawnSize, 0);
+  const gfx::Point bottom_mid(kHalfDrawnSize, kDrawnSize);
+
+  scoped_ptr<InkDropAnimation> ink_drop_animation(
+      new InkDropAnimation(gfx::Size(kDrawnSize, kDrawnSize), 2,
+                           gfx::Size(kHalfDrawnSize, kHalfDrawnSize), 1));
+  InkDropAnimationTestApi test_api(ink_drop_animation.get());
+
+  InkDropAnimationTestApi::InkDropTransforms transforms;
+  test_api.CalculateRectTransforms(
+      gfx::SizeF(kTransformedWidth, kTransformedHeight), kTransformedRadius,
+      &transforms);
+
+  // Transform variables to reduce verbosity of actual verification code.
+  const gfx::Transform kTopLeftTransform =
+      transforms[InkDropAnimationTestApi::PaintedShape::TOP_LEFT_CIRCLE];
+  const gfx::Transform kTopRightTransform =
+      transforms[InkDropAnimationTestApi::PaintedShape::TOP_RIGHT_CIRCLE];
+  const gfx::Transform kBottomRightTransform =
+      transforms[InkDropAnimationTestApi::PaintedShape::BOTTOM_RIGHT_CIRCLE];
+  const gfx::Transform kBottomLeftTransform =
+      transforms[InkDropAnimationTestApi::PaintedShape::BOTTOM_LEFT_CIRCLE];
+  const gfx::Transform kHorizontalTransform =
+      transforms[InkDropAnimationTestApi::PaintedShape::HORIZONTAL_RECT];
+  const gfx::Transform kVerticalTransform =
+      transforms[InkDropAnimationTestApi::PaintedShape::VERTICAL_RECT];
+
+  const int x_offset = kHalfTransformedWidth - kTransformedRadius;
+  const int y_offset = kHalfTransformedWidth - kTransformedRadius;
+
+  // Top left circle
+  EXPECT_EQ(gfx::Point(-x_offset, -y_offset),
+            TransformPoint(kTopLeftTransform, center));
+  EXPECT_EQ(gfx::Point(-kHalfTransformedWidth, -y_offset),
+            TransformPoint(kTopLeftTransform, mid_left));
+  EXPECT_EQ(gfx::Point(-x_offset, -kHalfTransformedHeight),
+            TransformPoint(kTopLeftTransform, top_mid));
+
+  // Top right circle
+  EXPECT_EQ(gfx::Point(x_offset, -y_offset),
+            TransformPoint(kTopRightTransform, center));
+  EXPECT_EQ(gfx::Point(kHalfTransformedWidth, -y_offset),
+            TransformPoint(kTopRightTransform, mid_right));
+  EXPECT_EQ(gfx::Point(x_offset, -kHalfTransformedHeight),
+            TransformPoint(kTopRightTransform, top_mid));
+
+  // Bottom right circle
+  EXPECT_EQ(gfx::Point(x_offset, y_offset),
+            TransformPoint(kBottomRightTransform, center));
+  EXPECT_EQ(gfx::Point(kHalfTransformedWidth, y_offset),
+            TransformPoint(kBottomRightTransform, mid_right));
+  EXPECT_EQ(gfx::Point(x_offset, kHalfTransformedHeight),
+            TransformPoint(kBottomRightTransform, bottom_mid));
+
+  // Bottom left circle
+  EXPECT_EQ(gfx::Point(-x_offset, y_offset),
+            TransformPoint(kBottomLeftTransform, center));
+  EXPECT_EQ(gfx::Point(-kHalfTransformedWidth, y_offset),
+            TransformPoint(kBottomLeftTransform, mid_left));
+  EXPECT_EQ(gfx::Point(-x_offset, kHalfTransformedHeight),
+            TransformPoint(kBottomLeftTransform, bottom_mid));
+
+  // Horizontal rectangle
+  EXPECT_EQ(gfx::Point(0, 0), TransformPoint(kHorizontalTransform, center));
+  EXPECT_EQ(gfx::Point(-kHalfTransformedWidth, 0),
+            TransformPoint(kHorizontalTransform, mid_left));
+  EXPECT_EQ(gfx::Point(kHalfTransformedWidth, 0),
+            TransformPoint(kHorizontalTransform, mid_right));
+  EXPECT_EQ(gfx::Point(0, -y_offset),
+            TransformPoint(kHorizontalTransform, top_mid));
+  EXPECT_EQ(gfx::Point(0, y_offset),
+            TransformPoint(kHorizontalTransform, bottom_mid));
+
+  // Vertical rectangle
+  EXPECT_EQ(gfx::Point(0, 0), TransformPoint(kVerticalTransform, center));
+  EXPECT_EQ(gfx::Point(-x_offset, 0),
+            TransformPoint(kVerticalTransform, mid_left));
+  EXPECT_EQ(gfx::Point(x_offset, 0),
+            TransformPoint(kVerticalTransform, mid_right));
+  EXPECT_EQ(gfx::Point(0, -kHalfTransformedHeight),
+            TransformPoint(kVerticalTransform, top_mid));
+  EXPECT_EQ(gfx::Point(0, kHalfTransformedHeight),
+            TransformPoint(kVerticalTransform, bottom_mid));
+}
+
+}  // namespace test
+}  // namespace views
+
+#endif  // UI_VIEWS_ANIMATION_INK_DROP_ANIMATION_UNITTEST_H_