blob: ee439ae39d7360ac9272a784463d3af7cef7285a [file] [log] [blame]
// 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/location.h"
#include "base/memory/weak_ptr.h"
#include "base/single_thread_task_runner.h"
#include "base/thread_task_runner_handle.h"
#include "cc/input/main_thread_scrolling_reason.h"
#include "cc/layers/layer.h"
#include "cc/layers/layer_impl.h"
#include "cc/layers/picture_layer.h"
#include "cc/scheduler/begin_frame_source.h"
#include "cc/test/fake_content_layer_client.h"
#include "cc/test/fake_layer_tree_host_client.h"
#include "cc/test/fake_picture_layer.h"
#include "cc/test/fake_picture_layer_impl.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/test/layer_tree_test.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 "ui/gfx/geometry/point_conversions.h"
#include "ui/gfx/geometry/size_conversions.h"
#include "ui/gfx/geometry/vector2d_conversions.h"
namespace cc {
namespace {
scoped_ptr<ScrollState> BeginState(const gfx::Point& point) {
return ScrollState::Create(gfx::Vector2dF(), point, gfx::Vector2dF(), true,
false, false);
}
scoped_ptr<ScrollState> UpdateState(const gfx::Point& point,
const gfx::Vector2dF& delta) {
return ScrollState::Create(delta, point, gfx::Vector2dF(), false, false,
false);
}
scoped_ptr<ScrollState> EndState() {
return ScrollState::Create(gfx::Vector2dF(), gfx::Point(), gfx::Vector2dF(),
false, false, true);
}
class LayerTreeHostScrollTest : public LayerTreeTest {
protected:
void SetupTree() override {
LayerTreeTest::SetupTree();
Layer* root_layer = layer_tree_host()->root_layer();
// Create an effective max_scroll_offset of (100, 100).
gfx::Size scroll_layer_bounds(root_layer->bounds().width() + 100,
root_layer->bounds().height() + 100);
CreateVirtualViewportLayers(root_layer,
root_layer->bounds(),
root_layer->bounds(),
scroll_layer_bounds,
layer_tree_host(),
layer_settings());
}
};
class LayerTreeHostScrollTestScrollSimple : public LayerTreeHostScrollTest {
public:
LayerTreeHostScrollTestScrollSimple()
: initial_scroll_(10, 20),
second_scroll_(40, 5),
scroll_amount_(2, -1),
num_scrolls_(0) {}
void BeginTest() override {
layer_tree_host()->outer_viewport_scroll_layer()->SetScrollOffset(
initial_scroll_);
PostSetNeedsCommitToMainThread();
}
void UpdateLayerTreeHost() override {
Layer* scroll_layer = layer_tree_host()->outer_viewport_scroll_layer();
if (!layer_tree_host()->source_frame_number()) {
EXPECT_VECTOR_EQ(initial_scroll_, scroll_layer->scroll_offset());
} else {
EXPECT_VECTOR_EQ(gfx::ScrollOffsetWithDelta(initial_scroll_,
scroll_amount_),
scroll_layer->scroll_offset());
// Pretend like Javascript updated the scroll position itself.
scroll_layer->SetScrollOffset(second_scroll_);
}
}
void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
LayerImpl* root = impl->active_tree()->root_layer();
LayerImpl* scroll_layer = impl->OuterViewportScrollLayer();
EXPECT_VECTOR_EQ(gfx::Vector2d(), scroll_layer->ScrollDelta());
scroll_layer->SetScrollClipLayer(root->children()[0]->id());
scroll_layer->SetBounds(
gfx::Size(root->bounds().width() + 100, root->bounds().height() + 100));
scroll_layer->ScrollBy(scroll_amount_);
switch (impl->active_tree()->source_frame_number()) {
case 0:
EXPECT_VECTOR_EQ(initial_scroll_, scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(scroll_amount_, scroll_layer->ScrollDelta());
PostSetNeedsCommitToMainThread();
break;
case 1:
EXPECT_VECTOR_EQ(second_scroll_, scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(scroll_amount_, scroll_layer->ScrollDelta());
EndTest();
break;
}
}
void ApplyViewportDeltas(const gfx::Vector2dF& inner_delta,
const gfx::Vector2dF& outer_delta,
const gfx::Vector2dF& elastic_overscroll_delta,
float scale,
float top_controls_delta) override {
num_scrolls_++;
}
void AfterTest() override { EXPECT_EQ(1, num_scrolls_); }
private:
gfx::ScrollOffset initial_scroll_;
gfx::ScrollOffset second_scroll_;
gfx::Vector2dF 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) {}
void BeginTest() override {
scroll_layer_ = layer_tree_host()->outer_viewport_scroll_layer();
scroll_layer_->SetScrollOffset(initial_scroll_);
PostSetNeedsCommitToMainThread();
}
void BeginCommitOnThread(LayerTreeHostImpl* impl) override {
switch (layer_tree_host()->source_frame_number()) {
case 0:
EXPECT_VECTOR_EQ(initial_scroll_, scroll_layer_->scroll_offset());
break;
case 1:
EXPECT_VECTOR_EQ(
gfx::ScrollOffsetWithDelta(initial_scroll_,
scroll_amount_ + scroll_amount_),
scroll_layer_->scroll_offset());
case 2:
EXPECT_VECTOR_EQ(
gfx::ScrollOffsetWithDelta(initial_scroll_,
scroll_amount_ + scroll_amount_),
scroll_layer_->scroll_offset());
break;
}
}
void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
LayerImpl* scroll_layer =
impl->active_tree()->LayerById(scroll_layer_->id());
if (impl->active_tree()->source_frame_number() == 0 &&
impl->SourceAnimationFrameNumberForTesting() == 1) {
// First draw after first commit.
EXPECT_VECTOR_EQ(gfx::Vector2d(), scroll_layer->ScrollDelta());
scroll_layer->ScrollBy(scroll_amount_);
EXPECT_VECTOR_EQ(scroll_amount_, scroll_layer->ScrollDelta());
EXPECT_VECTOR_EQ(initial_scroll_, scroll_layer->BaseScrollOffset());
PostSetNeedsRedrawToMainThread();
} else if (impl->active_tree()->source_frame_number() == 0 &&
impl->SourceAnimationFrameNumberForTesting() == 2) {
// Second draw after first commit.
EXPECT_EQ(scroll_layer->ScrollDelta(), scroll_amount_);
scroll_layer->ScrollBy(scroll_amount_);
EXPECT_VECTOR_EQ(scroll_amount_ + scroll_amount_,
scroll_layer->ScrollDelta());
EXPECT_VECTOR_EQ(initial_scroll_, scroll_layer_->scroll_offset());
PostSetNeedsCommitToMainThread();
} else if (impl->active_tree()->source_frame_number() == 1) {
// Third or later draw after second commit.
EXPECT_GE(impl->SourceAnimationFrameNumberForTesting(), 3u);
EXPECT_VECTOR_EQ(gfx::Vector2d(), scroll_layer_->ScrollDelta());
EXPECT_VECTOR_EQ(
gfx::ScrollOffsetWithDelta(initial_scroll_,
scroll_amount_ + scroll_amount_),
scroll_layer_->scroll_offset());
EndTest();
}
}
void ApplyViewportDeltas(const gfx::Vector2dF& inner_delta,
const gfx::Vector2dF& outer_delta,
const gfx::Vector2dF& elastic_overscroll_delta,
float scale,
float top_controls_delta) override {
num_scrolls_++;
}
void AfterTest() override { EXPECT_EQ(1, num_scrolls_); }
private:
gfx::ScrollOffset initial_scroll_;
gfx::Vector2dF scroll_amount_;
int num_scrolls_;
scoped_refptr<Layer> scroll_layer_;
};
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) {}
void BeginTest() override {
layer_tree_host()->outer_viewport_scroll_layer()->SetScrollOffset(
initial_scroll_);
PostSetNeedsCommitToMainThread();
}
void SetupTree() override {
LayerTreeHostScrollTest::SetupTree();
gfx::Size scroll_layer_bounds(200, 200);
layer_tree_host()->outer_viewport_scroll_layer()->SetBounds(
scroll_layer_bounds);
layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 0.01f, 100.f);
}
void WillBeginMainFrame() override {
num_will_begin_main_frames_++;
Layer* root_scroll_layer =
layer_tree_host()->outer_viewport_scroll_layer();
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(initial_scroll_, root_scroll_layer->scroll_offset());
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(
gfx::ScrollOffsetWithDelta(initial_scroll_, impl_scroll_),
root_scroll_layer->scroll_offset());
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_);
// The source frame number still increases even with the abort.
EXPECT_EQ(2, layer_tree_host()->source_frame_number());
EXPECT_VECTOR_EQ(
gfx::ScrollOffsetWithDelta(initial_scroll_,
impl_scroll_ + impl_scroll_),
root_scroll_layer->scroll_offset());
EXPECT_EQ(impl_scale_ * impl_scale_,
layer_tree_host()->page_scale_factor());
root_scroll_layer->SetScrollOffset(gfx::ScrollOffsetWithDelta(
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(3, layer_tree_host()->source_frame_number());
gfx::Vector2dF delta =
impl_scroll_ + impl_scroll_ + impl_scroll_ + second_main_scroll_;
EXPECT_VECTOR_EQ(gfx::ScrollOffsetWithDelta(initial_scroll_, delta),
root_scroll_layer->scroll_offset());
// End the test by drawing to verify this commit is also aborted.
PostSetNeedsRedrawToMainThread();
break;
}
}
void DidBeginMainFrame() override { num_did_begin_main_frames_++; }
void WillCommit() override { num_will_commits_++; }
void DidCommit() override { num_did_commits_++; }
void BeginCommitOnThread(LayerTreeHostImpl* impl) override {
num_impl_commits_++;
}
void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
LayerImpl* root_scroll_layer = impl->OuterViewportScrollLayer();
if (impl->active_tree()->source_frame_number() == 0 &&
impl->SourceAnimationFrameNumberForTesting() == 1) {
// First draw
EXPECT_VECTOR_EQ(gfx::Vector2d(), root_scroll_layer->ScrollDelta());
root_scroll_layer->ScrollBy(impl_scroll_);
EXPECT_VECTOR_EQ(impl_scroll_, root_scroll_layer->ScrollDelta());
EXPECT_VECTOR_EQ(initial_scroll_, root_scroll_layer->BaseScrollOffset());
EXPECT_EQ(1.f, impl->active_tree()->page_scale_delta());
EXPECT_EQ(1.f, impl->active_tree()->current_page_scale_factor());
impl->active_tree()->SetPageScaleOnActiveTree(impl_scale_);
EXPECT_EQ(impl_scale_, impl->active_tree()->page_scale_delta());
EXPECT_EQ(impl_scale_, impl->active_tree()->current_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->SourceAnimationFrameNumberForTesting() == 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(gfx::Vector2d(), root_scroll_layer->ScrollDelta());
root_scroll_layer->ScrollBy(impl_scroll_);
EXPECT_VECTOR_EQ(impl_scroll_, root_scroll_layer->ScrollDelta());
EXPECT_VECTOR_EQ(
gfx::ScrollOffsetWithDelta(initial_scroll_, impl_scroll_),
root_scroll_layer->BaseScrollOffset());
EXPECT_EQ(1.f, impl->active_tree()->page_scale_delta());
EXPECT_EQ(impl_scale_, impl->active_tree()->current_page_scale_factor());
impl->active_tree()->SetPageScaleOnActiveTree(impl_scale_ * impl_scale_);
EXPECT_EQ(impl_scale_, impl->active_tree()->page_scale_delta());
EXPECT_EQ(impl_scale_ * impl_scale_,
impl->active_tree()->current_page_scale_factor());
impl->SetNeedsCommit();
} else if (impl->active_tree()->source_frame_number() == 1) {
// Commit for source frame 1 is aborted.
NOTREACHED();
} else if (impl->active_tree()->source_frame_number() == 2 &&
impl->SourceAnimationFrameNumberForTesting() == 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(impl_scroll_, root_scroll_layer->ScrollDelta());
gfx::Vector2dF delta = impl_scroll_ + impl_scroll_ + second_main_scroll_;
EXPECT_VECTOR_EQ(gfx::ScrollOffsetWithDelta(initial_scroll_, delta),
root_scroll_layer->BaseScrollOffset());
} else if (impl->active_tree()->source_frame_number() == 2 &&
impl->SourceAnimationFrameNumberForTesting() == 4) {
// Final draw after the second aborted commit.
EXPECT_VECTOR_EQ(gfx::Vector2d(), root_scroll_layer->ScrollDelta());
gfx::Vector2dF delta =
impl_scroll_ + impl_scroll_ + impl_scroll_ + second_main_scroll_;
EXPECT_VECTOR_EQ(gfx::ScrollOffsetWithDelta(initial_scroll_, delta),
root_scroll_layer->BaseScrollOffset());
EndTest();
} else {
// Commit for source frame 3 is aborted.
NOTREACHED();
}
}
void ApplyViewportDeltas(const gfx::Vector2dF& inner_delta,
const gfx::Vector2dF& outer_delta,
const gfx::Vector2dF& elastic_overscroll_delta,
float scale,
float top_controls_delta) override {
num_impl_scrolls_++;
}
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::ScrollOffset initial_scroll_;
gfx::Vector2dF impl_scroll_;
gfx::Vector2dF 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) {}
void SetupTree() override {
LayerTreeHostScrollTest::SetupTree();
layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 0.01f, 100.f);
}
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
LayerImpl* scroll_layer = impl->OuterViewportScrollLayer();
// Check that a fractional scroll delta is correctly accumulated over
// multiple commits.
switch (impl->active_tree()->source_frame_number()) {
case 0:
EXPECT_VECTOR_EQ(gfx::Vector2d(0, 0), scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(gfx::Vector2d(0, 0), scroll_layer->ScrollDelta());
PostSetNeedsCommitToMainThread();
break;
case 1:
EXPECT_VECTOR_EQ(gfx::ToFlooredVector2d(scroll_amount_),
scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(gfx::Vector2dF(fmod(scroll_amount_.x(), 1.0f), 0.0f),
scroll_layer->ScrollDelta());
PostSetNeedsCommitToMainThread();
break;
case 2:
EXPECT_VECTOR_EQ(
gfx::ToFlooredVector2d(scroll_amount_ + scroll_amount_),
scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(
gfx::Vector2dF(fmod(2.0f * scroll_amount_.x(), 1.0f), 0.0f),
scroll_layer->ScrollDelta());
EndTest();
break;
}
scroll_layer->ScrollBy(scroll_amount_);
}
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) {}
void SetupTree() override {
layer_tree_host()->SetDeviceScaleFactor(device_scale_factor_);
scoped_refptr<Layer> root_layer = Layer::Create(layer_settings());
root_layer->SetBounds(gfx::Size(10, 10));
root_scroll_layer_ =
FakePictureLayer::Create(layer_settings(), &fake_content_layer_client_);
root_scroll_layer_->SetBounds(gfx::Size(110, 110));
root_scroll_layer_->SetPosition(gfx::PointF());
root_scroll_layer_->SetIsDrawable(true);
CreateVirtualViewportLayers(root_layer.get(),
root_scroll_layer_,
root_layer->bounds(),
root_layer->bounds(),
layer_tree_host(),
layer_settings());
child_layer_ =
FakePictureLayer::Create(layer_settings(), &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::PointF(5.f, 5.f));
} else {
// Adjust the child layer horizontally so that scrolls will never hit it.
child_layer_->SetPosition(gfx::PointF(60.f, 5.f));
}
scoped_refptr<Layer> outer_container_layer =
layer_tree_host()->outer_viewport_scroll_layer()->parent();
child_layer_->SetIsDrawable(true);
child_layer_->SetScrollClipLayerId(outer_container_layer->id());
child_layer_->SetBounds(root_scroll_layer_->bounds());
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);
LayerTreeTest::SetupTree();
fake_content_layer_client_.set_bounds(root_layer->bounds());
}
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
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();
}
void ApplyViewportDeltas(const gfx::Vector2dF& inner_delta,
const gfx::Vector2dF& outer_delta,
const gfx::Vector2dF& elastic_overscroll_delta,
float scale,
float top_controls_delta) override {
num_scrolls_++;
}
void UpdateLayerTreeHost() 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(
gfx::ScrollOffsetWithDelta(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(gfx::ScrollOffsetWithDelta(javascript_scroll_,
scroll_amount_),
expected_scroll_layer_->scroll_offset());
break;
}
}
void DidActivateTreeOnThread(LayerTreeHostImpl* impl) override {
LayerImpl* inner_scroll = impl->InnerViewportScrollLayer();
FakePictureLayerImpl* root_scroll_layer_impl =
static_cast<FakePictureLayerImpl*>(impl->OuterViewportScrollLayer());
FakePictureLayerImpl* child_layer_impl = static_cast<FakePictureLayerImpl*>(
root_scroll_layer_impl->children()[0].get());
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(), inner_scroll->ScrollDelta());
EXPECT_VECTOR_EQ(gfx::Vector2d(),
expected_no_scroll_layer_impl->ScrollDelta());
// Ensure device scale factor matches the active tree.
EXPECT_EQ(device_scale_factor_, impl->active_tree()->device_scale_factor());
switch (impl->active_tree()->source_frame_number()) {
case 0: {
// GESTURE scroll on impl thread. Also tests that the last scrolled
// layer id is stored even after the scrolling ends.
gfx::Point scroll_point =
gfx::ToCeiledPoint(expected_scroll_layer_impl->position() -
gfx::Vector2dF(0.5f, 0.5f));
InputHandler::ScrollStatus status = impl->ScrollBegin(
BeginState(scroll_point).get(), InputHandler::GESTURE);
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
impl->ScrollBy(UpdateState(gfx::Point(), scroll_amount_).get());
LayerImpl* scrolling_layer = impl->CurrentlyScrollingLayer();
CHECK(scrolling_layer);
impl->ScrollEnd(EndState().get());
CHECK(!impl->CurrentlyScrollingLayer());
EXPECT_EQ(scrolling_layer->id(),
impl->active_tree()->LastScrolledLayerId());
// Check the scroll is applied as a delta.
EXPECT_VECTOR_EQ(initial_offset_,
expected_scroll_layer_impl->BaseScrollOffset());
EXPECT_VECTOR_EQ(scroll_amount_,
expected_scroll_layer_impl->ScrollDelta());
break;
}
case 1: {
// WHEEL scroll on impl thread.
gfx::Point scroll_point =
gfx::ToCeiledPoint(expected_scroll_layer_impl->position() +
gfx::Vector2dF(0.5f, 0.5f));
InputHandler::ScrollStatus status = impl->ScrollBegin(
BeginState(scroll_point).get(), InputHandler::WHEEL);
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
impl->ScrollBy(UpdateState(gfx::Point(), scroll_amount_).get());
impl->ScrollEnd(EndState().get());
// Check the scroll is applied as a delta.
EXPECT_VECTOR_EQ(javascript_scroll_,
expected_scroll_layer_impl->BaseScrollOffset());
EXPECT_VECTOR_EQ(scroll_amount_,
expected_scroll_layer_impl->ScrollDelta());
break;
}
case 2:
EXPECT_VECTOR_EQ(
gfx::ScrollOffsetWithDelta(javascript_scroll_, scroll_amount_),
expected_scroll_layer_impl->BaseScrollOffset());
EXPECT_VECTOR_EQ(gfx::Vector2d(),
expected_scroll_layer_impl->ScrollDelta());
EndTest();
break;
}
}
void AfterTest() override {
if (scroll_child_layer_) {
EXPECT_EQ(0, num_scrolls_);
EXPECT_VECTOR_EQ(gfx::ScrollOffsetWithDelta(javascript_scroll_,
scroll_amount_),
final_scroll_offset_);
} else {
EXPECT_EQ(2, num_scrolls_);
EXPECT_VECTOR_EQ(gfx::ScrollOffset(), final_scroll_offset_);
}
}
protected:
float device_scale_factor_;
bool scroll_child_layer_;
gfx::ScrollOffset initial_offset_;
gfx::ScrollOffset javascript_scroll_;
gfx::Vector2d scroll_amount_;
int num_scrolls_;
gfx::ScrollOffset 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) {
device_scale_factor_ = 1.f;
scroll_child_layer_ = true;
RunTest(CompositorMode::Threaded, false);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor1_ScrollChild_DelegatingRenderer) {
device_scale_factor_ = 1.f;
scroll_child_layer_ = true;
RunTest(CompositorMode::Threaded, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor15_ScrollChild_DirectRenderer) {
device_scale_factor_ = 1.5f;
scroll_child_layer_ = true;
RunTest(CompositorMode::Threaded, false);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor15_ScrollChild_DelegatingRenderer) {
device_scale_factor_ = 1.5f;
scroll_child_layer_ = true;
RunTest(CompositorMode::Threaded, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor2_ScrollChild_DirectRenderer) {
device_scale_factor_ = 2.f;
scroll_child_layer_ = true;
RunTest(CompositorMode::Threaded, false);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor2_ScrollChild_DelegatingRenderer) {
device_scale_factor_ = 2.f;
scroll_child_layer_ = true;
RunTest(CompositorMode::Threaded, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor1_ScrollRootScrollLayer_DirectRenderer) {
device_scale_factor_ = 1.f;
scroll_child_layer_ = false;
RunTest(CompositorMode::Threaded, false);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor1_ScrollRootScrollLayer_DelegatingRenderer) {
device_scale_factor_ = 1.f;
scroll_child_layer_ = false;
RunTest(CompositorMode::Threaded, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor15_ScrollRootScrollLayer_DirectRenderer) {
device_scale_factor_ = 1.5f;
scroll_child_layer_ = false;
RunTest(CompositorMode::Threaded, false);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor15_ScrollRootScrollLayer_DelegatingRenderer) {
device_scale_factor_ = 1.5f;
scroll_child_layer_ = false;
RunTest(CompositorMode::Threaded, true);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor2_ScrollRootScrollLayer_DirectRenderer) {
device_scale_factor_ = 2.f;
scroll_child_layer_ = false;
RunTest(CompositorMode::Threaded, false);
}
TEST_F(LayerTreeHostScrollTestCaseWithChild,
DeviceScaleFactor2_ScrollRootScrollLayer_DelegatingRenderer) {
device_scale_factor_ = 2.f;
scroll_child_layer_ = false;
RunTest(CompositorMode::Threaded, true);
}
class LayerTreeHostScrollTestSimple : public LayerTreeHostScrollTest {
public:
LayerTreeHostScrollTestSimple()
: initial_scroll_(10, 20),
main_thread_scroll_(40, 5),
impl_thread_scroll1_(2, -1),
impl_thread_scroll2_(-3, 10),
num_scrolls_(0) {}
void SetupTree() override {
LayerTreeHostScrollTest::SetupTree();
layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 0.01f, 100.f);
}
void BeginTest() override {
layer_tree_host()->outer_viewport_scroll_layer()->SetScrollOffset(
initial_scroll_);
PostSetNeedsCommitToMainThread();
}
void UpdateLayerTreeHost() override {
Layer* scroll_layer = layer_tree_host()->outer_viewport_scroll_layer();
if (!layer_tree_host()->source_frame_number()) {
EXPECT_VECTOR_EQ(initial_scroll_, scroll_layer->scroll_offset());
} else {
EXPECT_VECTOR_EQ(
scroll_layer->scroll_offset(),
gfx::ScrollOffsetWithDelta(initial_scroll_, impl_thread_scroll1_));
// Pretend like Javascript updated the scroll position itself with a
// change of main_thread_scroll.
scroll_layer->SetScrollOffset(
gfx::ScrollOffsetWithDelta(
initial_scroll_, main_thread_scroll_ + impl_thread_scroll1_));
}
}
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();
}
void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
if (impl->pending_tree())
impl->SetNeedsRedraw();
LayerImpl* root = impl->active_tree()->root_layer();
LayerImpl* scroll_layer = impl->OuterViewportScrollLayer();
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(gfx::Vector2d(), scroll_layer->ScrollDelta());
scroll_layer->ScrollBy(impl_thread_scroll1_);
EXPECT_VECTOR_EQ(initial_scroll_, scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(impl_thread_scroll1_, scroll_layer->ScrollDelta());
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);
scroll_layer->ScrollBy(impl_thread_scroll2_);
EXPECT_VECTOR_EQ(initial_scroll_, scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(impl_thread_scroll1_ + impl_thread_scroll2_,
scroll_layer->ScrollDelta());
LayerImpl* pending_scroll_layer =
impl->pending_tree()->OuterViewportScrollLayer();
EXPECT_VECTOR_EQ(
gfx::ScrollOffsetWithDelta(
initial_scroll_, main_thread_scroll_ + impl_thread_scroll1_),
pending_scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(impl_thread_scroll2_,
pending_scroll_layer->ScrollDelta());
}
break;
case 1:
EXPECT_FALSE(impl->pending_tree());
EXPECT_VECTOR_EQ(
gfx::ScrollOffsetWithDelta(
initial_scroll_, main_thread_scroll_ + impl_thread_scroll1_),
scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(impl_thread_scroll2_, scroll_layer->ScrollDelta());
EndTest();
break;
}
}
void ApplyViewportDeltas(const gfx::Vector2dF& inner_delta,
const gfx::Vector2dF& outer_delta,
const gfx::Vector2dF& elastic_overscroll_delta,
float scale,
float top_controls_delta) override {
num_scrolls_++;
}
void AfterTest() override { EXPECT_EQ(1, num_scrolls_); }
private:
gfx::ScrollOffset initial_scroll_;
gfx::Vector2dF main_thread_scroll_;
gfx::Vector2dF impl_thread_scroll1_;
gfx::Vector2dF impl_thread_scroll2_;
int num_scrolls_;
};
// This tests scrolling on the impl side which is only possible with a thread.
MULTI_THREAD_TEST_F(LayerTreeHostScrollTestSimple);
// 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 LayerTreeHostScrollTestImplOnlyScroll : public LayerTreeHostScrollTest {
public:
LayerTreeHostScrollTestImplOnlyScroll()
: initial_scroll_(20, 10), impl_thread_scroll_(-2, 3), impl_scale_(2.f) {}
void SetupTree() override {
LayerTreeHostScrollTest::SetupTree();
layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 0.01f, 100.f);
}
void BeginTest() override {
layer_tree_host()->outer_viewport_scroll_layer()->SetScrollOffset(
initial_scroll_);
PostSetNeedsCommitToMainThread();
}
void WillCommit() override {
Layer* scroll_layer = layer_tree_host()->outer_viewport_scroll_layer();
switch (layer_tree_host()->source_frame_number()) {
case 0:
EXPECT_TRUE(scroll_layer->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(scroll_layer->needs_push_properties());
break;
}
}
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();
LayerImpl* active_scroll_layer = impl->OuterViewportScrollLayer();
ASSERT_TRUE(active_root);
ASSERT_TRUE(active_scroll_layer);
active_scroll_layer->ScrollBy(impl_thread_scroll_);
impl->active_tree()->SetPageScaleOnActiveTree(impl_scale_);
}
}
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* active_scroll_layer =
active_root ? impl->OuterViewportScrollLayer() : NULL;
LayerImpl* pending_root = impl->pending_tree()->root_layer();
LayerImpl* pending_scroll_layer =
impl->pending_tree()->OuterViewportScrollLayer();
ASSERT_TRUE(pending_root);
ASSERT_TRUE(pending_scroll_layer);
switch (impl->pending_tree()->source_frame_number()) {
case 0:
EXPECT_VECTOR_EQ(initial_scroll_,
pending_scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(gfx::Vector2d(), pending_scroll_layer->ScrollDelta());
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(initial_scroll_,
pending_scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(impl_thread_scroll_,
pending_scroll_layer->ScrollDelta());
ASSERT_TRUE(active_root);
EXPECT_VECTOR_EQ(initial_scroll_,
active_scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(impl_thread_scroll_,
active_scroll_layer->ScrollDelta());
break;
case 2:
// On the next commit, this delta should have been sent and applied.
EXPECT_VECTOR_EQ(
gfx::ScrollOffsetWithDelta(initial_scroll_, impl_thread_scroll_),
pending_scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(gfx::Vector2d(), pending_scroll_layer->ScrollDelta());
break;
}
}
void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
if (impl->pending_tree())
impl->SetNeedsRedraw();
LayerImpl* scroll_layer = impl->OuterViewportScrollLayer();
switch (impl->active_tree()->source_frame_number()) {
case 0:
EXPECT_VECTOR_EQ(initial_scroll_, scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(gfx::Vector2d(), scroll_layer->ScrollDelta());
EXPECT_EQ(1.f, impl->active_tree()->page_scale_delta());
EXPECT_EQ(1.f, impl->active_tree()->current_page_scale_factor());
PostSetNeedsCommitToMainThread();
break;
case 1:
EXPECT_VECTOR_EQ(initial_scroll_, scroll_layer->BaseScrollOffset());
EXPECT_VECTOR_EQ(impl_thread_scroll_, scroll_layer->ScrollDelta());
EXPECT_EQ(impl_scale_, impl->active_tree()->page_scale_delta());
EXPECT_EQ(impl_scale_,
impl->active_tree()->current_page_scale_factor());
PostSetNeedsCommitToMainThread();
break;
case 2:
EXPECT_EQ(1.f, impl->active_tree()->page_scale_delta());
EXPECT_EQ(impl_scale_,
impl->active_tree()->current_page_scale_factor());
EndTest();
break;
}
}
void AfterTest() override {}
private:
gfx::ScrollOffset initial_scroll_;
gfx::Vector2dF impl_thread_scroll_;
float impl_scale_;
};
// This tests scrolling on the impl side which is only possible with a thread.
MULTI_THREAD_TEST_F(LayerTreeHostScrollTestImplOnlyScroll);
class LayerTreeHostScrollTestScrollZeroMaxScrollOffset
: public LayerTreeHostScrollTest {
public:
LayerTreeHostScrollTestScrollZeroMaxScrollOffset() {}
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
LayerImpl* root = impl->active_tree()->root_layer();
LayerImpl* scroll_layer = impl->OuterViewportScrollLayer();
scroll_layer->SetScrollClipLayer(root->children()[0]->id());
// Set max_scroll_offset = (100, 100).
scroll_layer->SetBounds(
gfx::Size(root->bounds().width() + 100, root->bounds().height() + 100));
InputHandler::ScrollStatus status = scroll_layer->TryScroll(
gfx::PointF(0.0f, 1.0f), InputHandler::GESTURE);
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
status.main_thread_scrolling_reasons);
// Set max_scroll_offset = (0, 0).
scroll_layer->SetBounds(root->bounds());
status = scroll_layer->TryScroll(
gfx::PointF(0.0f, 1.0f), InputHandler::GESTURE);
EXPECT_EQ(InputHandler::SCROLL_IGNORED, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollable,
status.main_thread_scrolling_reasons);
// Set max_scroll_offset = (-100, -100).
scroll_layer->SetBounds(gfx::Size());
status = scroll_layer->TryScroll(
gfx::PointF(0.0f, 1.0f), InputHandler::GESTURE);
EXPECT_EQ(InputHandler::SCROLL_IGNORED, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollable,
status.main_thread_scrolling_reasons);
EndTest();
}
void AfterTest() override {}
};
SINGLE_AND_MULTI_THREAD_TEST_F(
LayerTreeHostScrollTestScrollZeroMaxScrollOffset);
class LayerTreeHostScrollTestScrollNonDrawnLayer
: public LayerTreeHostScrollTest {
public:
LayerTreeHostScrollTestScrollNonDrawnLayer() {}
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void SetupTree() override {
LayerTreeHostScrollTest::SetupTree();
layer_tree_host()->outer_viewport_scroll_layer()->SetIsDrawable(false);
layer_tree_host()->outer_viewport_scroll_layer()->SetScrollOffset(
gfx::ScrollOffset(20.f, 20.f));
layer_tree_host()
->outer_viewport_scroll_layer()
->SetNonFastScrollableRegion(gfx::Rect(20, 20, 20, 20));
}
void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
LayerImpl* scroll_layer = impl->OuterViewportScrollLayer();
// Verify that the scroll layer's scroll offset is taken into account when
// checking whether the screen space point is inside the non-fast
// scrollable region.
InputHandler::ScrollStatus status = scroll_layer->TryScroll(
gfx::PointF(1.f, 1.f), InputHandler::GESTURE);
EXPECT_EQ(InputHandler::SCROLL_ON_MAIN_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNonFastScrollableRegion,
status.main_thread_scrolling_reasons);
status = scroll_layer->TryScroll(
gfx::PointF(21.f, 21.f), InputHandler::GESTURE);
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
status.main_thread_scrolling_reasons);
EndTest();
}
void AfterTest() override {}
};
SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostScrollTestScrollNonDrawnLayer);
class ThreadCheckingInputHandlerClient : public InputHandlerClient {
public:
ThreadCheckingInputHandlerClient(base::SingleThreadTaskRunner* runner,
bool* received_stop_flinging)
: task_runner_(runner), received_stop_flinging_(received_stop_flinging) {}
void WillShutdown() override {
if (!received_stop_flinging_)
ADD_FAILURE() << "WillShutdown() called before fling stopped";
}
void Animate(base::TimeTicks time) override {
if (!task_runner_->BelongsToCurrentThread())
ADD_FAILURE() << "Animate called on wrong thread";
}
void MainThreadHasStoppedFlinging() override {
if (!task_runner_->BelongsToCurrentThread())
ADD_FAILURE() << "MainThreadHasStoppedFlinging called on wrong thread";
*received_stop_flinging_ = true;
}
void ReconcileElasticOverscrollAndRootScroll() override {
if (!task_runner_->BelongsToCurrentThread()) {
ADD_FAILURE() << "ReconcileElasticOverscrollAndRootScroll called on "
<< "wrong thread";
}
}
void UpdateRootLayerStateForSynchronousInputHandler(
const gfx::ScrollOffset& total_scroll_offset,
const gfx::ScrollOffset& max_scroll_offset,
const gfx::SizeF& scrollable_size,
float page_scale_factor,
float min_page_scale_factor,
float max_page_scale_factor) override {
if (!task_runner_->BelongsToCurrentThread()) {
ADD_FAILURE() << "UpdateRootLayerStateForSynchronousInputHandler 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);
}
TEST(LayerTreeHostFlingTest, DidStopFlingingThread) {
base::Thread impl_thread("cc");
ASSERT_TRUE(impl_thread.Start());
bool received_stop_flinging = false;
LayerTreeSettings settings;
ThreadCheckingInputHandlerClient input_handler_client(
impl_thread.task_runner().get(), &received_stop_flinging);
FakeLayerTreeHostClient client(FakeLayerTreeHostClient::DIRECT_3D);
ASSERT_TRUE(impl_thread.task_runner());
TestSharedBitmapManager shared_bitmap_manager;
TestTaskGraphRunner task_graph_runner;
LayerTreeHost::InitParams params;
params.client = &client;
params.shared_bitmap_manager = &shared_bitmap_manager;
params.task_graph_runner = &task_graph_runner;
params.settings = &settings;
params.main_task_runner = base::ThreadTaskRunnerHandle::Get();
scoped_ptr<LayerTreeHost> layer_tree_host =
LayerTreeHost::CreateThreaded(impl_thread.task_runner(), &params);
impl_thread.task_runner()->PostTask(
FROM_HERE, base::Bind(&BindInputHandlerOnCompositorThread,
layer_tree_host->GetInputHandler(),
base::Unretained(&input_handler_client)));
layer_tree_host->DidStopFlinging();
layer_tree_host = nullptr;
impl_thread.Stop();
EXPECT_TRUE(received_stop_flinging);
}
class LayerTreeHostScrollTestLayerStructureChange
: public LayerTreeHostScrollTest {
public:
LayerTreeHostScrollTestLayerStructureChange()
: scroll_destroy_whole_tree_(false) {}
void SetupTree() override {
LayerTreeTest::SetupTree();
Layer* root_layer = layer_tree_host()->root_layer();
root_layer->SetBounds(gfx::Size(10, 10));
CreateVirtualViewportLayers(root_layer,
root_layer->bounds(),
root_layer->bounds(),
root_layer->bounds(),
layer_tree_host(),
layer_settings());
Layer* outer_scroll_layer =
layer_tree_host()->outer_viewport_scroll_layer();
Layer* root_scroll_layer =
CreateScrollLayer(outer_scroll_layer, &root_scroll_layer_client_);
CreateScrollLayer(outer_scroll_layer, &sibling_scroll_layer_client_);
CreateScrollLayer(root_scroll_layer, &child_scroll_layer_client_);
fake_content_layer_client_.set_bounds(root_layer->bounds());
}
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
LayerImpl* root = impl->OuterViewportScrollLayer();
switch (impl->active_tree()->source_frame_number()) {
case 0:
root->child_at(0)->SetScrollDelta(gfx::Vector2dF(5, 5));
root->child_at(0)->child_at(0)->SetScrollDelta(gfx::Vector2dF(5, 5));
root->child_at(1)->SetScrollDelta(gfx::Vector2dF(5, 5));
PostSetNeedsCommitToMainThread();
break;
case 1:
EndTest();
break;
}
}
void AfterTest() override {}
virtual void DidScroll(Layer* layer) {
if (scroll_destroy_whole_tree_) {
layer_tree_host()->RegisterViewportLayers(NULL, NULL, NULL, NULL);
layer_tree_host()->SetRootLayer(NULL);
EndTest();
return;
}
layer->RemoveFromParent();
}
protected:
class FakeLayerScrollClient {
public:
void DidScroll() {
owner_->DidScroll(layer_);
}
LayerTreeHostScrollTestLayerStructureChange* owner_;
Layer* layer_;
};
Layer* CreateScrollLayer(Layer* parent, FakeLayerScrollClient* client) {
scoped_refptr<PictureLayer> scroll_layer =
PictureLayer::Create(layer_settings(), &fake_content_layer_client_);
scroll_layer->SetBounds(gfx::Size(110, 110));
scroll_layer->SetPosition(gfx::PointF());
scroll_layer->SetIsDrawable(true);
scroll_layer->SetScrollClipLayerId(parent->id());
scroll_layer->SetBounds(gfx::Size(parent->bounds().width() + 100,
parent->bounds().height() + 100));
scroll_layer->set_did_scroll_callback(base::Bind(
&FakeLayerScrollClient::DidScroll, base::Unretained(client)));
client->owner_ = this;
client->layer_ = scroll_layer.get();
parent->AddChild(scroll_layer);
return scroll_layer.get();
}
FakeLayerScrollClient root_scroll_layer_client_;
FakeLayerScrollClient sibling_scroll_layer_client_;
FakeLayerScrollClient child_scroll_layer_client_;
FakeContentLayerClient fake_content_layer_client_;
bool scroll_destroy_whole_tree_;
};
TEST_F(LayerTreeHostScrollTestLayerStructureChange, ScrollDestroyLayer) {
RunTest(CompositorMode::Threaded, false);
}
TEST_F(LayerTreeHostScrollTestLayerStructureChange, ScrollDestroyWholeTree) {
scroll_destroy_whole_tree_ = true;
RunTest(CompositorMode::Threaded, false);
}
} // namespace
} // namespace cc