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layer_tree_host_unittest_scroll.cc
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// Copyright 2012 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/trees/layer_tree_host.h"
#include "base/memory/weak_ptr.h"
#include "cc/layers/content_layer.h"
#include "cc/layers/layer.h"
#include "cc/layers/layer_impl.h"
#include "cc/test/fake_content_layer_client.h"
#include "cc/test/fake_layer_tree_host_client.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/test/layer_tree_test.h"
#include "cc/trees/layer_tree_impl.h"
#include "ui/gfx/point_conversions.h"
#include "ui/gfx/size_conversions.h"
#include "ui/gfx/vector2d_conversions.h"
namespace cc {
namespace {
class LayerTreeHostScrollTest : public LayerTreeTest {};
class LayerTreeHostScrollTestScrollSimple : public LayerTreeHostScrollTest {
public:
LayerTreeHostScrollTestScrollSimple()
: initial_scroll_(10, 20),
second_scroll_(40, 5),
scroll_amount_(2, -1),
num_scrolls_(0) {}
virtual void BeginTest() OVERRIDE {
layer_tree_host()->root_layer()->SetScrollable(true);
layer_tree_host()->root_layer()
->SetMaxScrollOffset(gfx::Vector2d(100, 100));
layer_tree_host()->root_layer()->SetScrollOffset(initial_scroll_);
PostSetNeedsCommitToMainThread();
}
virtual void Layout() OVERRIDE {
Layer* root = layer_tree_host()->root_layer();
if (!layer_tree_host()->source_frame_number()) {
EXPECT_VECTOR_EQ(initial_scroll_, root->scroll_offset());
} else {
EXPECT_VECTOR_EQ(initial_scroll_ + scroll_amount_, root->scroll_offset());
// Pretend like Javascript updated the scroll position itself.
root->SetScrollOffset(second_scroll_);
}
}
virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
LayerImpl* root = impl->active_tree()->root_layer();
EXPECT_VECTOR_EQ(gfx::Vector2d(), root->ScrollDelta());
root->SetScrollable(true);
root->SetMaxScrollOffset(gfx::Vector2d(100, 100));
root->ScrollBy(scroll_amount_);
switch (impl->active_tree()->source_frame_number()) {
case 0:
EXPECT_VECTOR_EQ(initial_scroll_, root->scroll_offset());
EXPECT_VECTOR_EQ(scroll_amount_, root->ScrollDelta());
PostSetNeedsCommitToMainThread();
break;
case 1:
EXPECT_VECTOR_EQ(root->scroll_offset(), second_scroll_);
EXPECT_VECTOR_EQ(root->ScrollDelta(), scroll_amount_);
EndTest();
break;
}
}
virtual void ApplyScrollAndScale(gfx::Vector2d scroll_delta,
float scale) OVERRIDE {
num_scrolls_++;
}
virtual void AfterTest() OVERRIDE { EXPECT_EQ(1, num_scrolls_); }
private:
gfx::Vector2d initial_scroll_;
gfx::Vector2d second_scroll_;
gfx::Vector2d scroll_amount_;
int num_scrolls_;
};
MULTI_THREAD_TEST_F(LayerTreeHostScrollTestScrollSimple);
class LayerTreeHostScrollTestScrollMultipleRedraw
: public LayerTreeHostScrollTest {
public:
LayerTreeHostScrollTestScrollMultipleRedraw()
: initial_scroll_(40, 10), scroll_amount_(-3, 17), num_scrolls_(0) {}
virtual void BeginTest() OVERRIDE {
layer_tree_host()->root_layer()->SetScrollable(true);
layer_tree_host()->root_layer()->SetScrollOffset(initial_scroll_);
layer_tree_host()->root_layer()->SetBounds(gfx::Size(200, 200));
layer_tree_host()->root_layer()
->SetMaxScrollOffset(gfx::Vector2d(100, 100));
PostSetNeedsCommitToMainThread();
}
virtual void BeginCommitOnThread(LayerTreeHostImpl* impl) OVERRIDE {
Layer* root = layer_tree_host()->root_layer();
switch (layer_tree_host()->source_frame_number()) {
case 0:
EXPECT_VECTOR_EQ(root->scroll_offset(), initial_scroll_);
break;
case 1:
EXPECT_VECTOR_EQ(root->scroll_offset(),
initial_scroll_ + scroll_amount_ + scroll_amount_);
case 2:
EXPECT_VECTOR_EQ(root->scroll_offset(),
initial_scroll_ + scroll_amount_ + scroll_amount_);
break;
}
}
virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
LayerImpl* root = impl->active_tree()->root_layer();
if (impl->active_tree()->source_frame_number() == 0 &&
impl->SourceAnimationFrameNumber() == 1) {
// First draw after first commit.
EXPECT_VECTOR_EQ(root->ScrollDelta(), gfx::Vector2d());
root->ScrollBy(scroll_amount_);
EXPECT_VECTOR_EQ(root->ScrollDelta(), scroll_amount_);
EXPECT_VECTOR_EQ(root->scroll_offset(), initial_scroll_);
PostSetNeedsRedrawToMainThread();
} else if (impl->active_tree()->source_frame_number() == 0 &&
impl->SourceAnimationFrameNumber() == 2) {
// Second draw after first commit.
EXPECT_EQ(root->ScrollDelta(), scroll_amount_);
root->ScrollBy(scroll_amount_);
EXPECT_VECTOR_EQ(root->ScrollDelta(), scroll_amount_ + scroll_amount_);
EXPECT_VECTOR_EQ(root->scroll_offset(), initial_scroll_);
PostSetNeedsCommitToMainThread();
} else if (impl->active_tree()->source_frame_number() == 1) {
// Third or later draw after second commit.
EXPECT_GE(impl->SourceAnimationFrameNumber(), 3);
EXPECT_VECTOR_EQ(root->ScrollDelta(), gfx::Vector2d());
EXPECT_VECTOR_EQ(root->scroll_offset(),
initial_scroll_ + scroll_amount_ + scroll_amount_);
EndTest();
}
}
virtual void ApplyScrollAndScale(gfx::Vector2d scroll_delta,
float scale) OVERRIDE {
num_scrolls_++;
}
virtual void AfterTest() OVERRIDE { EXPECT_EQ(1, num_scrolls_); }
private:
gfx::Vector2d initial_scroll_;
gfx::Vector2d scroll_amount_;
int num_scrolls_;
};
MULTI_THREAD_TEST_F(LayerTreeHostScrollTestScrollMultipleRedraw);
class LayerTreeHostScrollTestScrollAbortedCommit
: public LayerTreeHostScrollTest {
public:
LayerTreeHostScrollTestScrollAbortedCommit()
: initial_scroll_(50, 60),
impl_scroll_(-3, 2),
second_main_scroll_(14, -3),
impl_scale_(2.f),
num_will_begin_main_frames_(0),
num_did_begin_main_frames_(0),
num_will_commits_(0),
num_did_commits_(0),
num_impl_commits_(0),
num_impl_scrolls_(0) {}
virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
virtual void SetupTree() OVERRIDE {
LayerTreeHostScrollTest::SetupTree();
scoped_refptr<Layer> root_scroll_layer = Layer::Create();
root_scroll_layer->SetScrollable(true);
root_scroll_layer->SetScrollOffset(initial_scroll_);
root_scroll_layer->SetBounds(gfx::Size(200, 200));
root_scroll_layer->SetMaxScrollOffset(gfx::Vector2d(100, 100));
root_scroll_layer->SetIsDrawable(true);
layer_tree_host()->root_layer()->AddChild(root_scroll_layer);
layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 0.01f, 100.f);
}
virtual void WillBeginMainFrame() OVERRIDE {
num_will_begin_main_frames_++;
Layer* root_scroll_layer = layer_tree_host()->root_layer()->children()[0];
switch (num_will_begin_main_frames_) {
case 1:
// This will not be aborted because of the initial prop changes.
EXPECT_EQ(0, num_impl_scrolls_);
EXPECT_EQ(0, layer_tree_host()->source_frame_number());
EXPECT_VECTOR_EQ(root_scroll_layer->scroll_offset(), initial_scroll_);
EXPECT_EQ(1.f, layer_tree_host()->page_scale_factor());
break;
case 2:
// This commit will be aborted, and another commit will be
// initiated from the redraw.
EXPECT_EQ(1, num_impl_scrolls_);
EXPECT_EQ(1, layer_tree_host()->source_frame_number());
EXPECT_VECTOR_EQ(root_scroll_layer->scroll_offset(),
initial_scroll_ + impl_scroll_);
EXPECT_EQ(impl_scale_, layer_tree_host()->page_scale_factor());
PostSetNeedsRedrawToMainThread();
break;
case 3:
// This commit will not be aborted because of the scroll change.
EXPECT_EQ(2, num_impl_scrolls_);
EXPECT_EQ(1, layer_tree_host()->source_frame_number());
EXPECT_VECTOR_EQ(root_scroll_layer->scroll_offset(),
initial_scroll_ + impl_scroll_ + impl_scroll_);
EXPECT_EQ(impl_scale_ * impl_scale_,
layer_tree_host()->page_scale_factor());
root_scroll_layer->SetScrollOffset(root_scroll_layer->scroll_offset() +
second_main_scroll_);
break;
case 4:
// This commit will also be aborted.
EXPECT_EQ(3, num_impl_scrolls_);
EXPECT_EQ(2, layer_tree_host()->source_frame_number());
EXPECT_VECTOR_EQ(root_scroll_layer->scroll_offset(),
initial_scroll_ + impl_scroll_ + impl_scroll_ +
impl_scroll_ + second_main_scroll_);
// End the test by drawing to verify this commit is also aborted.
PostSetNeedsRedrawToMainThread();
break;
}
}
virtual void DidBeginMainFrame() OVERRIDE { num_did_begin_main_frames_++; }
virtual void WillCommit() OVERRIDE { num_will_commits_++; }
virtual void DidCommit() OVERRIDE { num_did_commits_++; }
virtual void BeginCommitOnThread(LayerTreeHostImpl* impl) OVERRIDE {
num_impl_commits_++;
}
virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
LayerImpl* root_scroll_layer =
impl->active_tree()->root_layer()->children()[0];
if (impl->active_tree()->source_frame_number() == 0 &&
impl->SourceAnimationFrameNumber() == 1) {
// First draw
EXPECT_VECTOR_EQ(root_scroll_layer->ScrollDelta(), gfx::Vector2d());
root_scroll_layer->ScrollBy(impl_scroll_);
EXPECT_VECTOR_EQ(root_scroll_layer->ScrollDelta(), impl_scroll_);
EXPECT_VECTOR_EQ(root_scroll_layer->scroll_offset(), initial_scroll_);
EXPECT_EQ(1.f, impl->active_tree()->page_scale_delta());
EXPECT_EQ(1.f, impl->active_tree()->total_page_scale_factor());
impl->active_tree()->SetPageScaleDelta(impl_scale_);
EXPECT_EQ(impl_scale_, impl->active_tree()->page_scale_delta());
EXPECT_EQ(impl_scale_, impl->active_tree()->total_page_scale_factor());
// To simplify the testing flow, don't redraw here, just commit.
impl->SetNeedsCommit();
} else if (impl->active_tree()->source_frame_number() == 0 &&
impl->SourceAnimationFrameNumber() == 2) {
// Test a second draw after an aborted commit.
// The scroll/scale values should be baked into the offset/scale factor
// since the main thread consumed but aborted the begin frame.
EXPECT_VECTOR_EQ(root_scroll_layer->ScrollDelta(), gfx::Vector2d());
root_scroll_layer->ScrollBy(impl_scroll_);
EXPECT_VECTOR_EQ(root_scroll_layer->ScrollDelta(), impl_scroll_);
EXPECT_VECTOR_EQ(root_scroll_layer->scroll_offset(),
initial_scroll_ + impl_scroll_);
EXPECT_EQ(1.f, impl->active_tree()->page_scale_delta());
EXPECT_EQ(impl_scale_, impl->active_tree()->total_page_scale_factor());
impl->active_tree()->SetPageScaleDelta(impl_scale_);
EXPECT_EQ(impl_scale_, impl->active_tree()->page_scale_delta());
EXPECT_EQ(impl_scale_ * impl_scale_,
impl->active_tree()->total_page_scale_factor());
impl->SetNeedsCommit();
} else if (impl->active_tree()->source_frame_number() == 1 &&
impl->SourceAnimationFrameNumber() == 3) {
// Third draw after the second full commit.
EXPECT_EQ(root_scroll_layer->ScrollDelta(), gfx::Vector2d());
root_scroll_layer->ScrollBy(impl_scroll_);
impl->SetNeedsCommit();
EXPECT_VECTOR_EQ(root_scroll_layer->ScrollDelta(), impl_scroll_);
EXPECT_VECTOR_EQ(
root_scroll_layer->scroll_offset(),
initial_scroll_ + impl_scroll_ + impl_scroll_ + second_main_scroll_);
} else if (impl->active_tree()->source_frame_number() == 1 &&
impl->SourceAnimationFrameNumber() == 4) {
// Final draw after the second aborted commit.
EXPECT_VECTOR_EQ(root_scroll_layer->ScrollDelta(), gfx::Vector2d());
EXPECT_VECTOR_EQ(root_scroll_layer->scroll_offset(),
initial_scroll_ + impl_scroll_ + impl_scroll_ +
impl_scroll_ + second_main_scroll_);
EndTest();
}
}
virtual void ApplyScrollAndScale(gfx::Vector2d scroll_delta,
float scale) OVERRIDE {
num_impl_scrolls_++;
}
virtual void AfterTest() OVERRIDE {
EXPECT_EQ(3, num_impl_scrolls_);
// Verify that the embedder sees aborted commits as real commits.
EXPECT_EQ(4, num_will_begin_main_frames_);
EXPECT_EQ(4, num_did_begin_main_frames_);
EXPECT_EQ(4, num_will_commits_);
EXPECT_EQ(4, num_did_commits_);
// ...but the compositor thread only sees two real ones.
EXPECT_EQ(2, num_impl_commits_);
}
private:
gfx::Vector2d initial_scroll_;
gfx::Vector2d impl_scroll_;
gfx::Vector2d second_main_scroll_;
float impl_scale_;
int num_will_begin_main_frames_;
int num_did_begin_main_frames_;
int num_will_commits_;
int num_did_commits_;
int num_impl_commits_;
int num_impl_scrolls_;
};
MULTI_THREAD_TEST_F(LayerTreeHostScrollTestScrollAbortedCommit);
class LayerTreeHostScrollTestFractionalScroll : public LayerTreeHostScrollTest {
public:
LayerTreeHostScrollTestFractionalScroll() : scroll_amount_(1.75, 0) {}
virtual void BeginTest() OVERRIDE {
layer_tree_host()->root_layer()->SetScrollable(true);
layer_tree_host()->root_layer()
->SetMaxScrollOffset(gfx::Vector2d(100, 100));
PostSetNeedsCommitToMainThread();
}
virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
LayerImpl* root = impl->active_tree()->root_layer();
// Check that a fractional scroll delta is correctly accumulated over
// multiple commits.
switch (impl->active_tree()->source_frame_number()) {
case 0:
EXPECT_VECTOR_EQ(root->scroll_offset(), gfx::Vector2d(0, 0));
EXPECT_VECTOR_EQ(root->ScrollDelta(), gfx::Vector2d(0, 0));
PostSetNeedsCommitToMainThread();
break;
case 1:
EXPECT_VECTOR_EQ(root->scroll_offset(),
gfx::ToFlooredVector2d(scroll_amount_));
EXPECT_VECTOR_EQ(root->ScrollDelta(),
gfx::Vector2dF(fmod(scroll_amount_.x(), 1.0f), 0.0f));
PostSetNeedsCommitToMainThread();
break;
case 2:
EXPECT_VECTOR_EQ(
root->scroll_offset(),
gfx::ToFlooredVector2d(scroll_amount_ + scroll_amount_));
EXPECT_VECTOR_EQ(
root->ScrollDelta(),
gfx::Vector2dF(fmod(2.0f * scroll_amount_.x(), 1.0f), 0.0f));
EndTest();
break;
}
root->ScrollBy(scroll_amount_);
}
virtual void AfterTest() OVERRIDE {}
private:
gfx::Vector2dF scroll_amount_;
};
MULTI_THREAD_TEST_F(LayerTreeHostScrollTestFractionalScroll);
class LayerTreeHostScrollTestCaseWithChild : public LayerTreeHostScrollTest {
public:
LayerTreeHostScrollTestCaseWithChild()
: initial_offset_(10, 20),
javascript_scroll_(40, 5),
scroll_amount_(2, -1),
num_scrolls_(0) {}
virtual void SetupTree() OVERRIDE {
layer_tree_host()->SetDeviceScaleFactor(device_scale_factor_);
scoped_refptr<Layer> root_layer = Layer::Create();
root_layer->SetBounds(gfx::Size(10, 10));
root_scroll_layer_ = ContentLayer::Create(&fake_content_layer_client_);
root_scroll_layer_->SetBounds(gfx::Size(110, 110));
root_scroll_layer_->SetPosition(gfx::Point());
root_scroll_layer_->SetAnchorPoint(gfx::PointF());
root_scroll_layer_->SetIsDrawable(true);
root_scroll_layer_->SetScrollable(true);
root_scroll_layer_->SetMaxScrollOffset(gfx::Vector2d(100, 100));
root_layer->AddChild(root_scroll_layer_);
child_layer_ = ContentLayer::Create(&fake_content_layer_client_);
child_layer_->set_did_scroll_callback(
base::Bind(&LayerTreeHostScrollTestCaseWithChild::DidScroll,
base::Unretained(this)));
child_layer_->SetBounds(gfx::Size(110, 110));
if (scroll_child_layer_) {
// Scrolls on the child layer will happen at 5, 5. If they are treated
// like device pixels, and device scale factor is 2, then they will
// be considered at 2.5, 2.5 in logical pixels, and will miss this layer.
child_layer_->SetPosition(gfx::Point(5, 5));
} else {
// Adjust the child layer horizontally so that scrolls will never hit it.
child_layer_->SetPosition(gfx::Point(60, 5));
}
child_layer_->SetAnchorPoint(gfx::PointF());
child_layer_->SetIsDrawable(true);
child_layer_->SetScrollable(true);
child_layer_->SetMaxScrollOffset(gfx::Vector2d(100, 100));
root_scroll_layer_->AddChild(child_layer_);
if (scroll_child_layer_) {
expected_scroll_layer_ = child_layer_;
expected_no_scroll_layer_ = root_scroll_layer_;
} else {
expected_scroll_layer_ = root_scroll_layer_;
expected_no_scroll_layer_ = child_layer_;
}
expected_scroll_layer_->SetScrollOffset(initial_offset_);
layer_tree_host()->SetRootLayer(root_layer);
LayerTreeHostScrollTest::SetupTree();
}
virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
virtual void WillCommit() OVERRIDE {
// Keep the test committing (otherwise the early out for no update
// will stall the test).
if (layer_tree_host()->source_frame_number() < 2) {
layer_tree_host()->SetNeedsCommit();
}
}
void DidScroll() {
final_scroll_offset_ = expected_scroll_layer_->scroll_offset();
}
virtual void ApplyScrollAndScale(gfx::Vector2d scroll_delta,
float scale) OVERRIDE {
num_scrolls_++;
}
virtual void Layout() OVERRIDE {
EXPECT_VECTOR_EQ(gfx::Vector2d(),
expected_no_scroll_layer_->scroll_offset());
switch (layer_tree_host()->source_frame_number()) {
case 0:
EXPECT_VECTOR_EQ(initial_offset_,
expected_scroll_layer_->scroll_offset());
break;
case 1:
EXPECT_VECTOR_EQ(initial_offset_ + scroll_amount_,
expected_scroll_layer_->scroll_offset());
// Pretend like Javascript updated the scroll position itself.
expected_scroll_layer_->SetScrollOffset(javascript_scroll_);
break;
case 2:
EXPECT_VECTOR_EQ(javascript_scroll_ + scroll_amount_,
expected_scroll_layer_->scroll_offset());
break;
}
}
virtual void DidActivateTreeOnThread(LayerTreeHostImpl* impl) OVERRIDE {
LayerImpl* root_impl = impl->active_tree()->root_layer();
LayerImpl* root_scroll_layer_impl = root_impl->children()[0];
LayerImpl* child_layer_impl = root_scroll_layer_impl->children()[0];
LayerImpl* expected_scroll_layer_impl = NULL;
LayerImpl* expected_no_scroll_layer_impl = NULL;
if (scroll_child_layer_) {
expected_scroll_layer_impl = child_layer_impl;
expected_no_scroll_layer_impl = root_scroll_layer_impl;
} else {
expected_scroll_layer_impl = root_scroll_layer_impl;
expected_no_scroll_layer_impl = child_layer_impl;
}
EXPECT_VECTOR_EQ(gfx::Vector2d(), root_impl->ScrollDelta());
EXPECT_VECTOR_EQ(gfx::Vector2d(),
expected_no_scroll_layer_impl->ScrollDelta());
// Ensure device scale factor is affecting the layers.
gfx::Size expected_content_bounds = gfx::ToCeiledSize(
gfx::ScaleSize(root_scroll_layer_impl->bounds(), device_scale_factor_));
EXPECT_SIZE_EQ(expected_content_bounds,
root_scroll_layer_->content_bounds());
expected_content_bounds = gfx::ToCeiledSize(
gfx::ScaleSize(child_layer_impl->bounds(), device_scale_factor_));
EXPECT_SIZE_EQ(expected_content_bounds, child_layer_->content_bounds());
switch (impl->active_tree()->source_frame_number()) {
case 0: {
// Gesture scroll on impl thread.
InputHandler::ScrollStatus status = impl->ScrollBegin(
gfx::ToCeiledPoint(expected_scroll_layer_impl->position() -
gfx::Vector2dF(0.5f, 0.5f)),
InputHandler::Gesture);
EXPECT_EQ(InputHandler::ScrollStarted, status);
impl->ScrollBy(gfx::Point(), scroll_amount_);
impl->ScrollEnd();
// Check the scroll is applied as a delta.
EXPECT_VECTOR_EQ(initial_offset_,
expected_scroll_layer_impl->scroll_offset());
EXPECT_VECTOR_EQ(scroll_amount_,
expected_scroll_layer_impl->ScrollDelta());
break;
}
case 1: {
// Wheel scroll on impl thread.
InputHandler::ScrollStatus status = impl->ScrollBegin(
gfx::ToCeiledPoint(expected_scroll_layer_impl->position() +
gfx::Vector2dF(0.5f, 0.5f)),
InputHandler::Wheel);
EXPECT_EQ(InputHandler::ScrollStarted, status);
impl->ScrollBy(gfx::Point(), scroll_amount_);
impl->ScrollEnd();
// Check the scroll is applied as a delta.
EXPECT_VECTOR_EQ(javascript_scroll_,
expected_scroll_layer_impl->scroll_offset());
EXPECT_VECTOR_EQ(scroll_amount_,
expected_scroll_layer_impl->ScrollDelta());
break;
}
case 2:
EXPECT_VECTOR_EQ(javascript_scroll_ + scroll_amount_,
expected_scroll_layer_impl->scroll_offset());
EXPECT_VECTOR_EQ(gfx::Vector2d(),
expected_scroll_layer_impl->ScrollDelta());
EndTest();
break;
}
}
virtual void AfterTest() OVERRIDE {
if (scroll_child_layer_) {
EXPECT_EQ(0, num_scrolls_);
EXPECT_VECTOR_EQ(javascript_scroll_ + scroll_amount_,
final_scroll_offset_);
} else {
EXPECT_EQ(2, num_scrolls_);
EXPECT_VECTOR_EQ(gfx::Vector2d(), final_scroll_offset_);
}
}
protected:
float device_scale_factor_;
bool scroll_child_layer_;
gfx::Vector2d initial_offset_;
gfx::Vector2d javascript_scroll_;
gfx::Vector2d scroll_amount_;
int num_scrolls_;
gfx::Vector2d final_scroll_offset_;
FakeContentLayerClient fake_content_layer_client_;
scoped_refptr<Layer> root_scroll_layer_;
scoped_refptr<Layer> child_layer_;
scoped_refptr<Layer> expected_scroll_layer_;
scoped_refptr<Layer> expected_no_scroll_layer_;
};
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor1_ScrollChild_DirectRenderer_MainThreadPaint) {
device_scale_factor_ = 1.f;
scroll_child_layer_ = true;
RunTest(true, false, false);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor1_ScrollChild_DirectRenderer_ImplSidePaint) {
device_scale_factor_ = 1.f;
scroll_child_layer_ = true;
RunTest(true, false, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor1_ScrollChild_DelegatingRenderer_MainThreadPaint) {
device_scale_factor_ = 1.f;
scroll_child_layer_ = true;
RunTest(true, true, false);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor1_ScrollChild_DelegatingRenderer_ImplSidePaint) {
device_scale_factor_ = 1.f;
scroll_child_layer_ = true;
RunTest(true, true, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor15_ScrollChild_DirectRenderer) {
device_scale_factor_ = 1.5f;
scroll_child_layer_ = true;
RunTest(true, false, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor15_ScrollChild_DelegatingRenderer) {
device_scale_factor_ = 1.5f;
scroll_child_layer_ = true;
RunTest(true, true, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor2_ScrollChild_DirectRenderer) {
device_scale_factor_ = 2.f;
scroll_child_layer_ = true;
RunTest(true, false, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor2_ScrollChild_DelegatingRenderer) {
device_scale_factor_ = 2.f;
scroll_child_layer_ = true;
RunTest(true, true, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor1_ScrollRootScrollLayer_DirectRenderer) {
device_scale_factor_ = 1.f;
scroll_child_layer_ = false;
RunTest(true, false, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor1_ScrollRootScrollLayer_DelegatingRenderer) {
device_scale_factor_ = 1.f;
scroll_child_layer_ = false;
RunTest(true, true, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor15_ScrollRootScrollLayer_DirectRenderer) {
device_scale_factor_ = 1.5f;
scroll_child_layer_ = false;
RunTest(true, false, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor15_ScrollRootScrollLayer_DelegatingRenderer) {
device_scale_factor_ = 1.5f;
scroll_child_layer_ = false;
RunTest(true, true, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor2_ScrollRootScrollLayer_DirectRenderer_MainSidePaint) {
device_scale_factor_ = 2.f;
scroll_child_layer_ = false;
RunTest(true, false, false);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor2_ScrollRootScrollLayer_DirectRenderer_ImplSidePaint) {
device_scale_factor_ = 2.f;
scroll_child_layer_ = false;
RunTest(true, false, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor2_ScrollRootScrollLayer_DelegatingRenderer) {
device_scale_factor_ = 2.f;
scroll_child_layer_ = false;
RunTest(true, true, true);
}
class ImplSidePaintingScrollTest : public LayerTreeHostScrollTest {
public:
virtual void InitializeSettings(LayerTreeSettings* settings) OVERRIDE {
settings->impl_side_painting = true;
}
virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
if (impl->pending_tree())
impl->SetNeedsRedraw();
}
};
class ImplSidePaintingScrollTestSimple : public ImplSidePaintingScrollTest {
public:
ImplSidePaintingScrollTestSimple()
: initial_scroll_(10, 20),
main_thread_scroll_(40, 5),
impl_thread_scroll1_(2, -1),
impl_thread_scroll2_(-3, 10),
num_scrolls_(0) {}
virtual void BeginTest() OVERRIDE {
layer_tree_host()->root_layer()->SetScrollable(true);
layer_tree_host()->root_layer()
->SetMaxScrollOffset(gfx::Vector2d(100, 100));
layer_tree_host()->root_layer()->SetScrollOffset(initial_scroll_);
PostSetNeedsCommitToMainThread();
}
virtual void Layout() OVERRIDE {
Layer* root = layer_tree_host()->root_layer();
if (!layer_tree_host()->source_frame_number()) {
EXPECT_VECTOR_EQ(root->scroll_offset(), initial_scroll_);
} else {
EXPECT_VECTOR_EQ(root->scroll_offset(),
initial_scroll_ + impl_thread_scroll1_);
// Pretend like Javascript updated the scroll position itself with a
// change of main_thread_scroll.
root->SetScrollOffset(initial_scroll_ + main_thread_scroll_ +
impl_thread_scroll1_);
}
}
virtual void CommitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE {
// We force a second draw here of the first commit before activating
// the second commit.
if (impl->active_tree()->source_frame_number() == 0)
impl->SetNeedsRedraw();
}
virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
ImplSidePaintingScrollTest::DrawLayersOnThread(impl);
LayerImpl* root = impl->active_tree()->root_layer();
LayerImpl* pending_root =
impl->active_tree()->FindPendingTreeLayerById(root->id());
switch (impl->active_tree()->source_frame_number()) {
case 0:
if (!impl->pending_tree()) {
impl->BlockNotifyReadyToActivateForTesting(true);
EXPECT_VECTOR_EQ(root->ScrollDelta(), gfx::Vector2d());
root->ScrollBy(impl_thread_scroll1_);
EXPECT_VECTOR_EQ(root->scroll_offset(), initial_scroll_);
EXPECT_VECTOR_EQ(root->ScrollDelta(), impl_thread_scroll1_);
EXPECT_VECTOR_EQ(root->sent_scroll_delta(), gfx::Vector2d());
PostSetNeedsCommitToMainThread();
// CommitCompleteOnThread will trigger this function again
// and cause us to take the else clause.
} else {
impl->BlockNotifyReadyToActivateForTesting(false);
ASSERT_TRUE(pending_root);
EXPECT_EQ(impl->pending_tree()->source_frame_number(), 1);
root->ScrollBy(impl_thread_scroll2_);
EXPECT_VECTOR_EQ(root->scroll_offset(), initial_scroll_);
EXPECT_VECTOR_EQ(root->ScrollDelta(),
impl_thread_scroll1_ + impl_thread_scroll2_);
EXPECT_VECTOR_EQ(root->sent_scroll_delta(), impl_thread_scroll1_);
EXPECT_VECTOR_EQ(
pending_root->scroll_offset(),
initial_scroll_ + main_thread_scroll_ + impl_thread_scroll1_);
EXPECT_VECTOR_EQ(pending_root->ScrollDelta(), impl_thread_scroll2_);
EXPECT_VECTOR_EQ(pending_root->sent_scroll_delta(), gfx::Vector2d());
}
break;
case 1:
EXPECT_FALSE(impl->pending_tree());
EXPECT_VECTOR_EQ(
root->scroll_offset(),
initial_scroll_ + main_thread_scroll_ + impl_thread_scroll1_);
EXPECT_VECTOR_EQ(root->ScrollDelta(), impl_thread_scroll2_);
EXPECT_VECTOR_EQ(root->sent_scroll_delta(), gfx::Vector2d());
EndTest();
break;
}
}
virtual void ApplyScrollAndScale(gfx::Vector2d scroll_delta,
float scale) OVERRIDE {
num_scrolls_++;
}
virtual void AfterTest() OVERRIDE { EXPECT_EQ(1, num_scrolls_); }
private:
gfx::Vector2d initial_scroll_;
gfx::Vector2d main_thread_scroll_;
gfx::Vector2d impl_thread_scroll1_;
gfx::Vector2d impl_thread_scroll2_;
int num_scrolls_;
};
MULTI_THREAD_TEST_F(ImplSidePaintingScrollTestSimple);
// This test makes sure that layers pick up scrolls that occur between
// beginning a commit and finishing a commit (aka scroll deltas not
// included in sent scroll delta) still apply to layers that don't
// push properties.
class ImplSidePaintingScrollTestImplOnlyScroll
: public ImplSidePaintingScrollTest {
public:
ImplSidePaintingScrollTestImplOnlyScroll()
: initial_scroll_(20, 10), impl_thread_scroll_(-2, 3) {}
virtual void BeginTest() OVERRIDE {
layer_tree_host()->root_layer()->SetScrollable(true);
layer_tree_host()->root_layer()->SetMaxScrollOffset(
gfx::Vector2d(100, 100));
layer_tree_host()->root_layer()->SetScrollOffset(initial_scroll_);
PostSetNeedsCommitToMainThread();
}
virtual void WillCommit() OVERRIDE {
Layer* root = layer_tree_host()->root_layer();
switch (layer_tree_host()->source_frame_number()) {
case 0:
EXPECT_TRUE(root->needs_push_properties());
break;
case 1:
// Even if this layer doesn't need push properties, it should
// still pick up scrolls that happen on the active layer during
// commit.
EXPECT_FALSE(root->needs_push_properties());
break;
}
}
virtual void BeginCommitOnThread(LayerTreeHostImpl* impl) OVERRIDE {
// Scroll after the 2nd commit has started.
if (impl->active_tree()->source_frame_number() == 0) {
LayerImpl* active_root = impl->active_tree()->root_layer();
ASSERT_TRUE(active_root);
active_root->ScrollBy(impl_thread_scroll_);
}
}
virtual void CommitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE {
// We force a second draw here of the first commit before activating
// the second commit.
LayerImpl* active_root = impl->active_tree()->root_layer();
LayerImpl* pending_root = impl->pending_tree()->root_layer();
ASSERT_TRUE(pending_root);
switch (impl->pending_tree()->source_frame_number()) {
case 0:
EXPECT_VECTOR_EQ(pending_root->scroll_offset(), initial_scroll_);
EXPECT_VECTOR_EQ(pending_root->ScrollDelta(), gfx::Vector2d());
EXPECT_VECTOR_EQ(pending_root->sent_scroll_delta(), gfx::Vector2d());
EXPECT_FALSE(active_root);
break;
case 1:
// Even though the scroll happened during the commit, both layers
// should have the appropriate scroll delta.
EXPECT_VECTOR_EQ(pending_root->scroll_offset(), initial_scroll_);
EXPECT_VECTOR_EQ(pending_root->ScrollDelta(), impl_thread_scroll_);
EXPECT_VECTOR_EQ(pending_root->sent_scroll_delta(), gfx::Vector2d());
ASSERT_TRUE(active_root);
EXPECT_VECTOR_EQ(active_root->scroll_offset(), initial_scroll_);
EXPECT_VECTOR_EQ(active_root->ScrollDelta(), impl_thread_scroll_);
EXPECT_VECTOR_EQ(active_root->sent_scroll_delta(), gfx::Vector2d());
break;
case 2:
// On the next commit, this delta should have been sent and applied.
EXPECT_VECTOR_EQ(pending_root->scroll_offset(),
initial_scroll_ + impl_thread_scroll_);
EXPECT_VECTOR_EQ(pending_root->ScrollDelta(), gfx::Vector2d());
EXPECT_VECTOR_EQ(pending_root->sent_scroll_delta(), gfx::Vector2d());
EndTest();
break;
}
}
virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
ImplSidePaintingScrollTest::DrawLayersOnThread(impl);
LayerImpl* root = impl->active_tree()->root_layer();
switch (impl->active_tree()->source_frame_number()) {
case 0:
EXPECT_VECTOR_EQ(root->scroll_offset(), initial_scroll_);
EXPECT_VECTOR_EQ(root->ScrollDelta(), gfx::Vector2d());
EXPECT_VECTOR_EQ(root->sent_scroll_delta(), gfx::Vector2d());
PostSetNeedsCommitToMainThread();
break;
case 1:
EXPECT_VECTOR_EQ(root->scroll_offset(), initial_scroll_);
EXPECT_VECTOR_EQ(root->ScrollDelta(), impl_thread_scroll_);
EXPECT_VECTOR_EQ(root->sent_scroll_delta(), gfx::Vector2d());
PostSetNeedsCommitToMainThread();
break;
}
}
virtual void AfterTest() OVERRIDE {}
private:
gfx::Vector2d initial_scroll_;
gfx::Vector2d impl_thread_scroll_;
};
MULTI_THREAD_TEST_F(ImplSidePaintingScrollTestImplOnlyScroll);
class LayerTreeHostScrollTestScrollZeroMaxScrollOffset
: public LayerTreeHostScrollTest {
public:
LayerTreeHostScrollTestScrollZeroMaxScrollOffset() {}
virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
LayerImpl* root = impl->active_tree()->root_layer();
root->SetScrollable(true);
root->SetMaxScrollOffset(gfx::Vector2d(100, 100));
EXPECT_EQ(InputHandler::ScrollStarted,
root->TryScroll(gfx::PointF(0.0f, 1.0f), InputHandler::Gesture));
root->SetMaxScrollOffset(gfx::Vector2d(0, 0));
EXPECT_EQ(InputHandler::ScrollIgnored,
root->TryScroll(gfx::PointF(0.0f, 1.0f), InputHandler::Gesture));
root->SetMaxScrollOffset(gfx::Vector2d(-100, -100));
EXPECT_EQ(InputHandler::ScrollIgnored,
root->TryScroll(gfx::PointF(0.0f, 1.0f), InputHandler::Gesture));
EndTest();
}
virtual void AfterTest() OVERRIDE {}
};
SINGLE_AND_MULTI_THREAD_TEST_F(
LayerTreeHostScrollTestScrollZeroMaxScrollOffset);
class ThreadCheckingInputHandlerClient : public InputHandlerClient {
public:
ThreadCheckingInputHandlerClient(base::SingleThreadTaskRunner* runner,
bool* received_stop_flinging)
: task_runner_(runner), received_stop_flinging_(received_stop_flinging) {}
virtual void WillShutdown() OVERRIDE {
if (!received_stop_flinging_)
ADD_FAILURE() << "WillShutdown() called before fling stopped";
}
virtual void Animate(base::TimeTicks time) OVERRIDE {
if (!task_runner_->BelongsToCurrentThread())
ADD_FAILURE() << "Animate called on wrong thread";
}
virtual void MainThreadHasStoppedFlinging() OVERRIDE {
if (!task_runner_->BelongsToCurrentThread())
ADD_FAILURE() << "MainThreadHasStoppedFlinging called on wrong thread";
*received_stop_flinging_ = true;
}
virtual void DidOverscroll(const DidOverscrollParams& params) OVERRIDE {
if (!task_runner_->BelongsToCurrentThread())
ADD_FAILURE() << "DidOverscroll called on wrong thread";
}
private:
base::SingleThreadTaskRunner* task_runner_;
bool* received_stop_flinging_;
};
void BindInputHandlerOnCompositorThread(
const base::WeakPtr<InputHandler>& input_handler,
ThreadCheckingInputHandlerClient* client) {
input_handler->BindToClient(client);