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scrollbar_animation_controller_unittest.cc
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scrollbar_animation_controller_unittest.cc
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// Copyright 2013 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 "cc/input/scrollbar_animation_controller.h"
#include "cc/layers/solid_color_scrollbar_layer_impl.h"
#include "cc/test/fake_impl_task_runner_provider.h"
#include "cc/test/fake_layer_tree_host_impl.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/test/test_task_graph_runner.h"
#include "cc/trees/layer_tree_impl.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using testing::AtLeast;
using testing::Mock;
using testing::NiceMock;
using testing::_;
namespace cc {
namespace {
const float kIdleThicknessScale =
SingleScrollbarAnimationControllerThinning::kIdleThicknessScale;
const float kMouseMoveDistanceToTriggerFadeIn =
ScrollbarAnimationController::kMouseMoveDistanceToTriggerFadeIn;
const float kMouseMoveDistanceToTriggerExpand =
SingleScrollbarAnimationControllerThinning::
kMouseMoveDistanceToTriggerExpand;
const int kThumbThickness = 10;
class MockScrollbarAnimationControllerClient
: public ScrollbarAnimationControllerClient {
public:
explicit MockScrollbarAnimationControllerClient(LayerTreeHostImpl* host_impl)
: host_impl_(host_impl) {}
virtual ~MockScrollbarAnimationControllerClient() {}
void PostDelayedScrollbarAnimationTask(const base::Closure& start_fade,
base::TimeDelta delay) override {
start_fade_ = start_fade;
delay_ = delay;
}
void SetNeedsRedrawForScrollbarAnimation() override {}
void SetNeedsAnimateForScrollbarAnimation() override {}
ScrollbarSet ScrollbarsFor(ElementId scroll_element_id) const override {
return host_impl_->ScrollbarsFor(scroll_element_id);
}
MOCK_METHOD0(DidChangeScrollbarVisibility, void());
base::Closure& start_fade() { return start_fade_; }
base::TimeDelta& delay() { return delay_; }
private:
base::Closure start_fade_;
base::TimeDelta delay_;
LayerTreeHostImpl* host_impl_;
};
class ScrollbarAnimationControllerAuraOverlayTest : public testing::Test {
public:
ScrollbarAnimationControllerAuraOverlayTest()
: host_impl_(&task_runner_provider_, &task_graph_runner_),
client_(&host_impl_) {}
void ExpectScrollbarsOpacity(float opacity) {
EXPECT_FLOAT_EQ(opacity, v_scrollbar_layer_->Opacity());
EXPECT_FLOAT_EQ(opacity, h_scrollbar_layer_->Opacity());
}
protected:
const base::TimeDelta kFadeDelay = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kFadeDuration = base::TimeDelta::FromSeconds(3);
const base::TimeDelta kThinningDuration = base::TimeDelta::FromSeconds(2);
void SetUp() override {
std::unique_ptr<LayerImpl> scroll_layer =
LayerImpl::Create(host_impl_.active_tree(), 1);
std::unique_ptr<LayerImpl> clip =
LayerImpl::Create(host_impl_.active_tree(), 2);
clip_layer_ = clip.get();
scroll_layer->SetElementId(
LayerIdToElementIdForTesting(scroll_layer->id()));
scroll_layer->SetScrollClipLayer(clip_layer_->id());
LayerImpl* scroll_layer_ptr = scroll_layer.get();
const int kTrackStart = 0;
const int kTrackLength = 100;
const bool kIsLeftSideVerticalScrollbar = false;
const bool kIsOverlayScrollbar = true;
std::unique_ptr<SolidColorScrollbarLayerImpl> h_scrollbar =
SolidColorScrollbarLayerImpl::Create(
host_impl_.active_tree(), 3, HORIZONTAL, kThumbThickness,
kTrackStart, kIsLeftSideVerticalScrollbar, kIsOverlayScrollbar);
h_scrollbar->test_properties()->opacity = 0.0f;
std::unique_ptr<SolidColorScrollbarLayerImpl> v_scrollbar =
SolidColorScrollbarLayerImpl::Create(
host_impl_.active_tree(), 4, VERTICAL, kThumbThickness, kTrackStart,
kIsLeftSideVerticalScrollbar, kIsOverlayScrollbar);
v_scrollbar->test_properties()->opacity = 0.0f;
v_scrollbar_layer_ = v_scrollbar.get();
h_scrollbar_layer_ = h_scrollbar.get();
scroll_layer->test_properties()->AddChild(std::move(v_scrollbar));
scroll_layer->test_properties()->AddChild(std::move(h_scrollbar));
clip_layer_->test_properties()->AddChild(std::move(scroll_layer));
host_impl_.active_tree()->SetRootLayerForTesting(std::move(clip));
v_scrollbar_layer_->SetBounds(gfx::Size(kThumbThickness, kTrackLength));
v_scrollbar_layer_->SetPosition(gfx::PointF(90, 0));
v_scrollbar_layer_->SetScrollElementId(scroll_layer_ptr->element_id());
v_scrollbar_layer_->test_properties()->opacity_can_animate = true;
h_scrollbar_layer_->SetBounds(gfx::Size(kTrackLength, kThumbThickness));
h_scrollbar_layer_->SetPosition(gfx::PointF(0, 90));
h_scrollbar_layer_->SetScrollElementId(scroll_layer_ptr->element_id());
h_scrollbar_layer_->test_properties()->opacity_can_animate = true;
clip_layer_->SetBounds(gfx::Size(100, 100));
scroll_layer_ptr->SetBounds(gfx::Size(200, 200));
host_impl_.active_tree()->BuildLayerListAndPropertyTreesForTesting();
scrollbar_controller_ = ScrollbarAnimationController::
CreateScrollbarAnimationControllerAuraOverlay(
scroll_layer_ptr->element_id(), &client_, kFadeDelay, kFadeDuration,
kThinningDuration, 0.0f);
v_scrollbar_layer_->SetCurrentPos(0);
h_scrollbar_layer_->SetCurrentPos(0);
}
// Return a point with given offset from the top-left of vertical scrollbar.
gfx::PointF NearVerticalScrollbarBegin(float offset_x, float offset_y) {
gfx::PointF p(90, 0);
p.Offset(offset_x, offset_y);
return p;
}
// Return a point with given offset from the bottom-left of vertical
// scrollbar.
gfx::PointF NearVerticalScrollbarEnd(float offset_x, float offset_y) {
gfx::PointF p(90, 90);
p.Offset(offset_x, offset_y);
return p;
}
// Return a point with given offset from the top-left of horizontal scrollbar.
gfx::PointF NearHorizontalScrollbarBegin(float offset_x, float offset_y) {
gfx::PointF p(0, 90);
p.Offset(offset_x, offset_y);
return p;
}
FakeImplTaskRunnerProvider task_runner_provider_;
TestTaskGraphRunner task_graph_runner_;
FakeLayerTreeHostImpl host_impl_;
std::unique_ptr<ScrollbarAnimationController> scrollbar_controller_;
LayerImpl* clip_layer_;
SolidColorScrollbarLayerImpl* v_scrollbar_layer_;
SolidColorScrollbarLayerImpl* h_scrollbar_layer_;
NiceMock<MockScrollbarAnimationControllerClient> client_;
};
// Check initialization of scrollbar. Should start off invisible and thin.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, Idle) {
ExpectScrollbarsOpacity(0);
EXPECT_TRUE(scrollbar_controller_->ScrollbarsHidden());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
}
// Check that scrollbar appears again when the layer becomes scrollable.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, AppearOnResize) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
ExpectScrollbarsOpacity(1);
// Make the Layer non-scrollable, scrollbar disappears.
clip_layer_->SetBounds(gfx::Size(200, 200));
scrollbar_controller_->DidScrollUpdate();
ExpectScrollbarsOpacity(0);
// Make the layer scrollable, scrollbar appears again.
clip_layer_->SetBounds(gfx::Size(100, 100));
scrollbar_controller_->DidScrollUpdate();
ExpectScrollbarsOpacity(1);
}
// Check that scrollbar disappears when the layer becomes non-scrollable.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, HideOnResize) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
LayerImpl* scroll_layer = host_impl_.active_tree()->LayerById(1);
ASSERT_TRUE(scroll_layer);
EXPECT_EQ(gfx::Size(200, 200), scroll_layer->bounds());
// Shrink along X axis, horizontal scrollbar should appear.
clip_layer_->SetBounds(gfx::Size(100, 200));
EXPECT_EQ(gfx::Size(100, 200), clip_layer_->bounds());
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
EXPECT_FLOAT_EQ(1, h_scrollbar_layer_->Opacity());
scrollbar_controller_->DidScrollEnd();
// Shrink along Y axis and expand along X, horizontal scrollbar
// should disappear.
clip_layer_->SetBounds(gfx::Size(200, 100));
EXPECT_EQ(gfx::Size(200, 100), clip_layer_->bounds());
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
EXPECT_FLOAT_EQ(0.0f, h_scrollbar_layer_->Opacity());
scrollbar_controller_->DidScrollEnd();
}
// Scroll content. Confirm the scrollbar appears and fades out.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, BasicAppearAndFadeOut) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
// Scrollbar should be invisible.
ExpectScrollbarsOpacity(0);
EXPECT_TRUE(scrollbar_controller_->ScrollbarsHidden());
// Scrollbar should appear only on scroll update.
scrollbar_controller_->DidScrollBegin();
ExpectScrollbarsOpacity(0);
EXPECT_TRUE(scrollbar_controller_->ScrollbarsHidden());
scrollbar_controller_->DidScrollUpdate();
ExpectScrollbarsOpacity(1);
EXPECT_FALSE(scrollbar_controller_->ScrollbarsHidden());
scrollbar_controller_->DidScrollEnd();
ExpectScrollbarsOpacity(1);
EXPECT_FALSE(scrollbar_controller_->ScrollbarsHidden());
// An fade out animation should have been enqueued.
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
client_.start_fade().Run();
// Scrollbar should fade out over kFadeDuration.
scrollbar_controller_->Animate(time);
time += kFadeDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(0);
EXPECT_TRUE(scrollbar_controller_->ScrollbarsHidden());
}
// Confirm the scrollbar appears by WillUpdateScroll and fade out.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest,
BasicAppearByWillUpdateScrollThenFadeOut) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
// Scrollbar should be invisible.
ExpectScrollbarsOpacity(0);
EXPECT_TRUE(scrollbar_controller_->ScrollbarsHidden());
// Scrollbar should appear when scroll will update.
scrollbar_controller_->WillUpdateScroll();
ExpectScrollbarsOpacity(1);
EXPECT_FALSE(scrollbar_controller_->ScrollbarsHidden());
// An fade out animation should have been enqueued.
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
client_.start_fade().Run();
// Scrollbar should fade out over kFadeDuration.
scrollbar_controller_->Animate(time);
time += kFadeDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(0);
EXPECT_TRUE(scrollbar_controller_->ScrollbarsHidden());
}
// Scroll content. Move the mouse near the scrollbar track but not near thumb
// and confirm it stay thin. Move the mouse near the scrollbar thumb and
// confirm it becomes thick.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest,
MoveNearTrackThenNearThumb) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
// An fade out animation should have been enqueued.
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
EXPECT_FALSE(client_.start_fade().IsCancelled());
// Now move the mouse near the vertical scrollbar track. This should cancel
// the currently queued fading animation and stay scrollbar thin.
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarEnd(-1, 0));
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_TRUE(client_.start_fade().IsCancelled());
scrollbar_controller_->Animate(time);
time += kThinningDuration;
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(-1, 0));
scrollbar_controller_->Animate(time);
time += kThinningDuration;
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarEnd(-1, 0));
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_TRUE(client_.start_fade().IsCancelled());
scrollbar_controller_->Animate(time);
time += kThinningDuration;
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
}
// Scroll content. Move the mouse near the scrollbar thumb and confirm it
// becomes thick. Ensure it remains visible as long as the mouse is near the
// scrollbar.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, MoveNearAndDontFadeOut) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
// An fade out animation should have been enqueued.
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
EXPECT_FALSE(client_.start_fade().IsCancelled());
// Now move the mouse near the vertical scrollbar thumb. This should cancel
// the currently queued fading animation and start animating thickness.
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(-1, 0));
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_TRUE(client_.start_fade().IsCancelled());
// Vertical scrollbar should become thick.
scrollbar_controller_->Animate(time);
time += kThinningDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// Mouse is still near the Scrollbar. Once the thickness animation is
// complete, the queued delayed fade out animation should be either cancelled
// or null.
EXPECT_TRUE(client_.start_fade().is_null() ||
client_.start_fade().IsCancelled());
}
// Scroll content. Move the mouse over the scrollbar and confirm it becomes
// thick. Ensure it remains visible as long as the mouse is over the scrollbar.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, MoveOverAndDontFadeOut) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
// An fade out animation should have been enqueued.
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
EXPECT_FALSE(client_.start_fade().IsCancelled());
// Now move the mouse over the vertical scrollbar thumb. This should cancel
// the currently queued fading animation and start animating thickness.
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(0, 0));
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_TRUE(client_.start_fade().IsCancelled());
// Vertical scrollbar should become thick.
scrollbar_controller_->Animate(time);
time += kThinningDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// Mouse is still over the Scrollbar. Once the thickness animation is
// complete, the queued delayed fade out animation should be either cancelled
// or null.
EXPECT_TRUE(client_.start_fade().is_null() ||
client_.start_fade().IsCancelled());
}
// Make sure a scrollbar captured before the thickening animation doesn't try
// to fade out.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest,
DontFadeWhileCapturedBeforeThick) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
// An fade out animation should have been enqueued.
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
// Now move the mouse over the vertical scrollbar thumb and capture it. It
// should become thick without need for an animation.
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(0, 0));
scrollbar_controller_->DidMouseDown();
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// The fade out animation should have been cleared or cancelled.
EXPECT_TRUE(client_.start_fade().is_null() ||
client_.start_fade().IsCancelled());
}
// Make sure a scrollbar captured then move mouse away doesn't try to fade out.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest,
DontFadeWhileCapturedThenAway) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
// An fade out animation should have been enqueued.
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
// Now move the mouse over the vertical scrollbar and capture it. It should
// become thick without need for an animation.
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(0, 0));
scrollbar_controller_->DidMouseDown();
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// The fade out animation should have been cleared or cancelled.
EXPECT_TRUE(client_.start_fade().is_null() ||
client_.start_fade().IsCancelled());
// Then move mouse away, The fade out animation should have been cleared or
// cancelled.
scrollbar_controller_->DidMouseMove(
NearVerticalScrollbarBegin(-kMouseMoveDistanceToTriggerExpand, 0));
EXPECT_TRUE(client_.start_fade().is_null() ||
client_.start_fade().IsCancelled());
}
// Make sure a scrollbar captured after a thickening animation doesn't try to
// fade out.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, DontFadeWhileCaptured) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
// An fade out animation should have been enqueued.
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
EXPECT_FALSE(client_.start_fade().IsCancelled());
// Now move the mouse over the vertical scrollbar thumb and animate it until
// it's thick.
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(0, 0));
scrollbar_controller_->Animate(time);
time += kThinningDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// Since the mouse is over the scrollbar, it should either clear or cancel the
// queued fade.
EXPECT_TRUE(client_.start_fade().is_null() ||
client_.start_fade().IsCancelled());
// Make sure the queued fade out animation is still null or cancelled after
// capturing the scrollbar.
scrollbar_controller_->DidMouseDown();
EXPECT_TRUE(client_.start_fade().is_null() ||
client_.start_fade().IsCancelled());
}
// Make sure releasing a captured scrollbar when the mouse isn't near it, causes
// the scrollbar to fade out.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, FadeAfterReleasedFar) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
// An fade out animation should have been enqueued.
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
EXPECT_FALSE(client_.start_fade().IsCancelled());
// Now move the mouse over the vertical scrollbar thumb and capture it.
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(0, 0));
scrollbar_controller_->DidMouseDown();
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// Since the mouse is still near the scrollbar, the queued fade should be
// either null or cancelled.
EXPECT_TRUE(client_.start_fade().is_null() ||
client_.start_fade().IsCancelled());
// Now move the mouse away from the scrollbar and release it.
scrollbar_controller_->DidMouseMove(
NearVerticalScrollbarBegin(-kMouseMoveDistanceToTriggerFadeIn, 0));
scrollbar_controller_->DidMouseUp();
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
time += kThinningDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// The thickness animation is complete, a fade out must be queued.
EXPECT_FALSE(client_.start_fade().is_null());
EXPECT_FALSE(client_.start_fade().IsCancelled());
}
// Make sure releasing a captured scrollbar when the mouse is near/over it,
// doesn't cause the scrollbar to fade out.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, DontFadeAfterReleasedNear) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
// An fade out animation should have been enqueued.
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
EXPECT_FALSE(client_.start_fade().IsCancelled());
// Now move the mouse over the vertical scrollbar thumb and capture it.
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(0, 0));
scrollbar_controller_->DidMouseDown();
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// Since the mouse is over the scrollbar, the queued fade must be either
// null or cancelled.
EXPECT_TRUE(client_.start_fade().is_null() ||
client_.start_fade().IsCancelled());
// Mouse is still near the scrollbar, releasing it shouldn't do anything.
scrollbar_controller_->DidMouseUp();
EXPECT_TRUE(client_.start_fade().is_null() ||
client_.start_fade().IsCancelled());
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
}
// Make sure moving near a scrollbar while it's fading out causes it to reset
// the opacity and thicken.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest,
MoveNearScrollbarWhileFading) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
// A fade out animation should have been enqueued. Start it.
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
client_.start_fade().Run();
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
// Proceed half way through the fade out animation.
time += kFadeDuration / 2;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(.5f);
// Now move the mouse near the vertical scrollbar thumb. It should reset
// opacity to 1 instantly and start animating to thick.
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(0, 0));
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
scrollbar_controller_->Animate(time);
time += kThinningDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
}
// Make sure we can't capture scrollbar that's completely faded out.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, TestCantCaptureWhenFaded) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
EXPECT_FALSE(client_.start_fade().IsCancelled());
client_.start_fade().Run();
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
// Fade the scrollbar out completely.
time += kFadeDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(0);
// Move mouse over the vertical scrollbar thumb. It shouldn't thicken the
// scrollbar since it's completely faded out.
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(0, 0));
scrollbar_controller_->Animate(time);
time += kThinningDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(0);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
client_.start_fade().Reset();
// Now try to capture the scrollbar. It shouldn't do anything since it's
// completely faded out.
scrollbar_controller_->DidMouseDown();
ExpectScrollbarsOpacity(0);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_TRUE(client_.start_fade().is_null());
// Similarly, releasing the scrollbar should have no effect.
scrollbar_controller_->DidMouseUp();
ExpectScrollbarsOpacity(0);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_TRUE(client_.start_fade().is_null());
}
// Initiate a scroll when the pointer is already near the scrollbar. It should
// appear thick and remain thick.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, ScrollWithMouseNear) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(-1, 0));
scrollbar_controller_->Animate(time);
time += kThinningDuration;
// Since the scrollbar isn't visible yet (because we haven't scrolled), we
// shouldn't have applied the thickening.
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
// Now that we've received a scroll, we should be thick without an animation.
ExpectScrollbarsOpacity(1);
// An animation for the fade should be either null or cancelled, since
// mouse is still near the scrollbar.
scrollbar_controller_->DidScrollEnd();
EXPECT_TRUE(client_.start_fade().is_null() ||
client_.start_fade().IsCancelled());
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// Scrollbar should still be thick and visible.
time += kFadeDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
}
// Tests that main thread scroll updates immediatley queue a fade out animation
// without requiring a ScrollEnd.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest,
MainThreadScrollQueuesFade) {
ASSERT_TRUE(client_.start_fade().is_null());
// A ScrollUpdate without a ScrollBegin indicates a main thread scroll update
// so we should schedule a fade out animation without waiting for a ScrollEnd
// (which will never come).
scrollbar_controller_->DidScrollUpdate();
EXPECT_FALSE(client_.start_fade().is_null());
EXPECT_EQ(kFadeDelay, client_.delay());
client_.start_fade().Reset();
// If we got a ScrollBegin, we shouldn't schedule the fade out animation until
// we get a corresponding ScrollEnd.
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
EXPECT_TRUE(client_.start_fade().is_null());
scrollbar_controller_->DidScrollEnd();
EXPECT_FALSE(client_.start_fade().is_null());
EXPECT_EQ(kFadeDelay, client_.delay());
}
// Tests that the fade effect is animated.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, FadeAnimated) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
// Scroll to make the scrollbars visible.
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
// Appearance is instant.
ExpectScrollbarsOpacity(1);
// An fade out animation should have been enqueued.
EXPECT_EQ(kFadeDelay, client_.delay());
EXPECT_FALSE(client_.start_fade().is_null());
client_.start_fade().Run();
// Test that at half the fade duration time, the opacity is at half.
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
time += kFadeDuration / 2;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(.5f);
time += kFadeDuration / 2;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(0);
}
// Tests that the controller tells the client when the scrollbars hide/show.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, NotifyChangedVisibility) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
EXPECT_CALL(client_, DidChangeScrollbarVisibility()).Times(1);
// Scroll to make the scrollbars visible.
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
EXPECT_FALSE(scrollbar_controller_->ScrollbarsHidden());
Mock::VerifyAndClearExpectations(&client_);
scrollbar_controller_->DidScrollEnd();
// Play out the fade out animation. We shouldn't notify that the scrollbars
// are hidden until the animation is completly over. We can (but don't have
// to) notify during the animation that the scrollbars are still visible.
EXPECT_CALL(client_, DidChangeScrollbarVisibility()).Times(0);
ASSERT_FALSE(client_.start_fade().is_null());
client_.start_fade().Run();
scrollbar_controller_->Animate(time);
time += kFadeDuration / 4;
EXPECT_FALSE(scrollbar_controller_->ScrollbarsHidden());
scrollbar_controller_->Animate(time);
time += kFadeDuration / 4;
EXPECT_FALSE(scrollbar_controller_->ScrollbarsHidden());
scrollbar_controller_->Animate(time);
time += kFadeDuration / 4;
EXPECT_FALSE(scrollbar_controller_->ScrollbarsHidden());
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(.25f);
Mock::VerifyAndClearExpectations(&client_);
EXPECT_CALL(client_, DidChangeScrollbarVisibility()).Times(1);
time += kFadeDuration / 4;
scrollbar_controller_->Animate(time);
EXPECT_TRUE(scrollbar_controller_->ScrollbarsHidden());
ExpectScrollbarsOpacity(0);
Mock::VerifyAndClearExpectations(&client_);
// Calling DidScrollUpdate without a begin (i.e. update from commit) should
// also notify.
EXPECT_CALL(client_, DidChangeScrollbarVisibility()).Times(1);
scrollbar_controller_->DidScrollUpdate();
EXPECT_FALSE(scrollbar_controller_->ScrollbarsHidden());
Mock::VerifyAndClearExpectations(&client_);
}
// Move the pointer near each scrollbar. Confirm it gets thick and narrow when
// moved away.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, MouseNearEach) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
// Scroll to make the scrollbars visible.
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
// Near vertical scrollbar.
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(-1, 0));
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// Should animate to thickened.
time += kThinningDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// Subsequent moves within the nearness threshold should not change anything.
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarBegin(-2, 0));
scrollbar_controller_->Animate(time);
time += base::TimeDelta::FromSeconds(10);
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// Now move away from bar.
scrollbar_controller_->DidMouseMove(
NearVerticalScrollbarBegin(-kMouseMoveDistanceToTriggerExpand, 0));
scrollbar_controller_->Animate(time);
time += kThinningDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// Near horizontal scrollbar
scrollbar_controller_->DidMouseMove(NearHorizontalScrollbarBegin(0, -1));
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// Should animate to thickened.
time += kThinningDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(1, h_scrollbar_layer_->thumb_thickness_scale_factor());
// Subsequent moves within the nearness threshold should not change anything.
scrollbar_controller_->DidMouseMove(NearHorizontalScrollbarBegin(0, -2));
scrollbar_controller_->Animate(time);
time += base::TimeDelta::FromSeconds(10);
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(1, h_scrollbar_layer_->thumb_thickness_scale_factor());
// Now move away from bar.
scrollbar_controller_->DidMouseMove(
NearHorizontalScrollbarBegin(0, -kMouseMoveDistanceToTriggerExpand));
scrollbar_controller_->Animate(time);
time += kThinningDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// An fade out animation should have been enqueued.
EXPECT_FALSE(client_.start_fade().is_null());
EXPECT_EQ(kFadeDelay, client_.delay());
}
// Move mouse near both scrollbars at the same time.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest, MouseNearBoth) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
// Scroll to make the scrollbars visible.
scrollbar_controller_->DidScrollBegin();
scrollbar_controller_->DidScrollUpdate();
scrollbar_controller_->DidScrollEnd();
// Move scrollbar thumb to the end of track.
v_scrollbar_layer_->SetCurrentPos(100);
h_scrollbar_layer_->SetCurrentPos(100);
// Near both Scrollbar
scrollbar_controller_->DidMouseMove(NearVerticalScrollbarEnd(-1, -1));
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(kIdleThicknessScale,
v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(kIdleThicknessScale,
h_scrollbar_layer_->thumb_thickness_scale_factor());
// Should animate to thickened.
time += kThinningDuration;
scrollbar_controller_->Animate(time);
ExpectScrollbarsOpacity(1);
EXPECT_FLOAT_EQ(1, v_scrollbar_layer_->thumb_thickness_scale_factor());
EXPECT_FLOAT_EQ(1, h_scrollbar_layer_->thumb_thickness_scale_factor());
}
// Move mouse from one to the other scrollbar before animation is finished, then
// away before animation finished.
TEST_F(ScrollbarAnimationControllerAuraOverlayTest,
MouseNearOtherBeforeAnimationFinished) {