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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/animation/scrollbar_animation_controller_thinning.h"
#include "cc/layers/solid_color_scrollbar_layer_impl.h"
#include "cc/test/fake_impl_proxy.h"
#include "cc/test/fake_layer_tree_host_impl.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/test/test_shared_bitmap_manager.h"
#include "cc/test/test_task_graph_runner.h"
#include "cc/trees/layer_tree_impl.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cc {
namespace {
class ScrollbarAnimationControllerThinningTest
: public testing::Test,
public ScrollbarAnimationControllerClient {
public:
ScrollbarAnimationControllerThinningTest()
: host_impl_(&proxy_, &shared_bitmap_manager_, &task_graph_runner_) {}
void StartAnimatingScrollbarAnimationController(
ScrollbarAnimationController* controller) override {
is_animating_ = true;
}
void StopAnimatingScrollbarAnimationController(
ScrollbarAnimationController* controller) override {
is_animating_ = false;
}
void PostDelayedScrollbarAnimationTask(const base::Closure& start_fade,
base::TimeDelta delay) override {
start_fade_ = start_fade;
delay_ = delay;
}
void SetNeedsRedrawForScrollbarAnimation() override {
did_request_redraw_ = true;
}
protected:
void SetUp() override {
scoped_ptr<LayerImpl> scroll_layer =
LayerImpl::Create(host_impl_.active_tree(), 1);
clip_layer_ = LayerImpl::Create(host_impl_.active_tree(), 3);
scroll_layer->SetScrollClipLayer(clip_layer_->id());
LayerImpl* scroll_layer_ptr = scroll_layer.get();
clip_layer_->AddChild(scroll_layer.Pass());
const int kId = 2;
const int kThumbThickness = 10;
const int kTrackStart = 0;
const bool kIsLeftSideVerticalScrollbar = false;
const bool kIsOverlayScrollbar = true;
scrollbar_layer_ =
SolidColorScrollbarLayerImpl::Create(host_impl_.active_tree(),
kId,
HORIZONTAL,
kThumbThickness,
kTrackStart,
kIsLeftSideVerticalScrollbar,
kIsOverlayScrollbar);
scrollbar_layer_->SetScrollLayerAndClipLayerByIds(scroll_layer_ptr->id(),
clip_layer_->id());
clip_layer_->SetBounds(gfx::Size(100, 100));
scroll_layer_ptr->SetBounds(gfx::Size(200, 200));
scrollbar_controller_ = ScrollbarAnimationControllerThinning::Create(
scroll_layer_ptr, this, base::TimeDelta::FromSeconds(2),
base::TimeDelta::FromSeconds(5), base::TimeDelta::FromSeconds(3));
}
FakeImplProxy proxy_;
TestSharedBitmapManager shared_bitmap_manager_;
TestTaskGraphRunner task_graph_runner_;
FakeLayerTreeHostImpl host_impl_;
scoped_ptr<ScrollbarAnimationControllerThinning> scrollbar_controller_;
scoped_ptr<LayerImpl> clip_layer_;
scoped_ptr<SolidColorScrollbarLayerImpl> scrollbar_layer_;
base::Closure start_fade_;
base::TimeDelta delay_;
bool is_animating_;
bool did_request_redraw_;
};
// Check initialization of scrollbar.
TEST_F(ScrollbarAnimationControllerThinningTest, Idle) {
scrollbar_controller_->Animate(base::TimeTicks());
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
}
// Check that scrollbar disappears when the layer becomes non-scrollable.
TEST_F(ScrollbarAnimationControllerThinningTest, HideOnResize) {
LayerImpl* scroll_layer = host_impl_.active_tree()->LayerById(1);
ASSERT_TRUE(scroll_layer);
EXPECT_EQ(gfx::Size(200, 200), scroll_layer->bounds());
EXPECT_EQ(HORIZONTAL, scrollbar_layer_->orientation());
// 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(false);
EXPECT_FLOAT_EQ(1.0f, 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(false);
EXPECT_FLOAT_EQ(0.0f, scrollbar_layer_->opacity());
scrollbar_controller_->DidScrollEnd();
}
// Scroll content. Confirm the scrollbar gets dark and then becomes light
// after stopping.
TEST_F(ScrollbarAnimationControllerThinningTest, AwakenByProgrammaticScroll) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidScrollUpdate(false);
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
// Scrollbar doesn't change size if triggered by scroll.
EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
start_fade_.Run();
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
// Subsequent scroll restarts animation.
scrollbar_controller_->DidScrollUpdate(false);
start_fade_.Run();
time += base::TimeDelta::FromSeconds(2);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.9f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
}
// Initiate a scroll when the pointer is already near the scrollbar. It should
// remain thick.
TEST_F(ScrollbarAnimationControllerThinningTest, ScrollWithMouseNear) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidMouseMoveNear(1);
scrollbar_controller_->Animate(time);
time += base::TimeDelta::FromSeconds(3);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
scrollbar_controller_->DidScrollUpdate(false);
start_fade_.Run();
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
// Scrollbar should still be thick.
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(5);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
}
// Move the pointer near the scrollbar. Confirm it gets thick and narrow when
// moved away.
TEST_F(ScrollbarAnimationControllerThinningTest, MouseNear) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidMouseMoveNear(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
// Should animate to thickened but not darken.
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.6f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
// Subsequent moves should not change anything.
scrollbar_controller_->DidMouseMoveNear(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
// Now move away from bar.
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidMouseMoveNear(26);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
// Animate to narrow.
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.6f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
}
// Move the pointer over the scrollbar. Make sure it gets thick and dark
// and that it gets thin and light when moved away.
TEST_F(ScrollbarAnimationControllerThinningTest, MouseOver) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidMouseMoveNear(0);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
// Should animate to thickened and darkened.
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.6f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.9f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
// Subsequent moves should not change anything.
scrollbar_controller_->DidMouseMoveNear(0);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
// Now move away from bar.
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidMouseMoveNear(26);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
// Animate to narrow.
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.9f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.6f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
}
// First move the pointer near the scrollbar, then over it, then back near
// then far away. Confirm that first the bar gets thick, then dark, then light,
// then narrow.
TEST_F(ScrollbarAnimationControllerThinningTest, MouseNearThenOver) {
base::TimeTicks time;
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidMouseMoveNear(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
// Should animate to thickened but not darken.
time += base::TimeDelta::FromSeconds(3);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
// Now move over.
scrollbar_controller_->DidMouseMoveNear(0);
scrollbar_controller_->Animate(time);
// Should animate to darkened.
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.9f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
// This is tricky. The DidMouseMoveOffScrollbar() is sent before the
// subsequent DidMouseMoveNear(), if the mouse moves in that direction.
// This results in the thumb thinning. We want to make sure that when the
// thumb starts expanding it doesn't first narrow to the idle thinness.
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->DidMouseMoveOffScrollbar();
scrollbar_controller_->Animate(time);
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.9f, scrollbar_layer_->opacity());
EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
scrollbar_controller_->DidMouseMoveNear(1);
scrollbar_controller_->Animate(time);
// A new animation is kicked off.
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
// We will initiate the narrowing again, but it won't get decremented until
// the new animation catches up to it.
EXPECT_FLOAT_EQ(0.9f, scrollbar_layer_->opacity());
// Now the thickness should be increasing, but it shouldn't happen until the
// animation catches up.
EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->opacity());
// The thickness now gets big again.
EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
time += base::TimeDelta::FromSeconds(1);
scrollbar_controller_->Animate(time);
EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
// The thickness now gets big again.
EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
}
} // namespace
} // namespace cc