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layer_tree_host_impl_unittest.cc
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layer_tree_host_impl_unittest.cc
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// Copyright 2011 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_impl.h"
#include <stddef.h>
#include <algorithm>
#include <cmath>
#include <utility>
#include "base/bind.h"
#include "base/command_line.h"
#include "base/location.h"
#include "base/memory/ptr_util.h"
#include "base/run_loop.h"
#include "base/threading/thread_task_runner_handle.h"
#include "cc/animation/animation_host.h"
#include "cc/animation/animation_id_provider.h"
#include "cc/animation/transform_operations.h"
#include "cc/base/math_util.h"
#include "cc/input/browser_controls_offset_manager.h"
#include "cc/input/main_thread_scrolling_reason.h"
#include "cc/input/page_scale_animation.h"
#include "cc/layers/append_quads_data.h"
#include "cc/layers/heads_up_display_layer_impl.h"
#include "cc/layers/layer_impl.h"
#include "cc/layers/painted_scrollbar_layer_impl.h"
#include "cc/layers/render_surface_impl.h"
#include "cc/layers/solid_color_layer_impl.h"
#include "cc/layers/solid_color_scrollbar_layer_impl.h"
#include "cc/layers/texture_layer_impl.h"
#include "cc/layers/video_layer_impl.h"
#include "cc/layers/viewport.h"
#include "cc/output/begin_frame_args.h"
#include "cc/output/compositor_frame_metadata.h"
#include "cc/output/copy_output_request.h"
#include "cc/output/copy_output_result.h"
#include "cc/output/gl_renderer.h"
#include "cc/output/latency_info_swap_promise.h"
#include "cc/quads/render_pass_draw_quad.h"
#include "cc/quads/solid_color_draw_quad.h"
#include "cc/quads/texture_draw_quad.h"
#include "cc/quads/tile_draw_quad.h"
#include "cc/resources/ui_resource_bitmap.h"
#include "cc/resources/ui_resource_manager.h"
#include "cc/test/animation_test_common.h"
#include "cc/test/begin_frame_args_test.h"
#include "cc/test/fake_compositor_frame_sink.h"
#include "cc/test/fake_layer_tree_host_impl.h"
#include "cc/test/fake_mask_layer_impl.h"
#include "cc/test/fake_output_surface.h"
#include "cc/test/fake_picture_layer_impl.h"
#include "cc/test/fake_raster_source.h"
#include "cc/test/fake_recording_source.h"
#include "cc/test/fake_video_frame_provider.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/test/layer_test_common.h"
#include "cc/test/layer_tree_test.h"
#include "cc/test/skia_common.h"
#include "cc/test/test_compositor_frame_sink.h"
#include "cc/test/test_task_graph_runner.h"
#include "cc/test/test_web_graphics_context_3d.h"
#include "cc/trees/effect_node.h"
#include "cc/trees/layer_tree_host_common.h"
#include "cc/trees/layer_tree_impl.h"
#include "cc/trees/mutator_host.h"
#include "cc/trees/scroll_node.h"
#include "cc/trees/single_thread_proxy.h"
#include "cc/trees/transform_node.h"
#include "media/base/media.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkMallocPixelRef.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/geometry/size_conversions.h"
#include "ui/gfx/geometry/vector2d_conversions.h"
#define EXPECT_SCOPED(statements) \
{ \
SCOPED_TRACE(""); \
statements; \
}
using ::testing::Mock;
using ::testing::Return;
using ::testing::AnyNumber;
using ::testing::AtLeast;
using ::testing::_;
using media::VideoFrame;
namespace cc {
namespace {
struct TestFrameData : public LayerTreeHostImpl::FrameData {
TestFrameData() {
// Set ack to something valid, so DCHECKs don't complain.
begin_frame_ack = BeginFrameAck(0, 1, 1, 0, true);
}
};
class LayerTreeHostImplTest : public testing::Test,
public LayerTreeHostImplClient {
public:
LayerTreeHostImplTest()
: task_runner_provider_(base::ThreadTaskRunnerHandle::Get()),
always_main_thread_blocked_(&task_runner_provider_),
on_can_draw_state_changed_called_(false),
did_notify_ready_to_activate_(false),
did_request_commit_(false),
did_request_redraw_(false),
did_request_next_frame_(false),
did_request_prepare_tiles_(false),
did_complete_page_scale_animation_(false),
reduce_memory_result_(true),
did_request_impl_side_invalidation_(false) {
media::InitializeMediaLibrary();
}
LayerTreeSettings DefaultSettings() {
LayerTreeSettings settings;
settings.minimum_occlusion_tracking_size = gfx::Size();
settings.renderer_settings.texture_id_allocation_chunk_size = 1;
settings.renderer_settings.buffer_to_texture_target_map =
DefaultBufferToTextureTargetMapForTesting();
return settings;
}
void SetUp() override {
CreateHostImpl(DefaultSettings(), CreateCompositorFrameSink());
}
void TearDown() override {
if (host_impl_)
host_impl_->ReleaseCompositorFrameSink();
}
void DidLoseCompositorFrameSinkOnImplThread() override {}
void SetBeginFrameSource(BeginFrameSource* source) override {}
void DidReceiveCompositorFrameAckOnImplThread() override {}
void OnCanDrawStateChanged(bool can_draw) override {
on_can_draw_state_changed_called_ = true;
}
void NotifyReadyToActivate() override {
did_notify_ready_to_activate_ = true;
host_impl_->ActivateSyncTree();
}
void NotifyReadyToDraw() override {}
void SetNeedsRedrawOnImplThread() override { did_request_redraw_ = true; }
void SetNeedsOneBeginImplFrameOnImplThread() override {
did_request_next_frame_ = true;
}
void SetNeedsPrepareTilesOnImplThread() override {
did_request_prepare_tiles_ = true;
}
void SetNeedsCommitOnImplThread() override { did_request_commit_ = true; }
void SetVideoNeedsBeginFrames(bool needs_begin_frames) override {}
void PostAnimationEventsToMainThreadOnImplThread(
std::unique_ptr<MutatorEvents> events) override {}
bool IsInsideDraw() override { return false; }
void RenewTreePriority() override {}
void PostDelayedAnimationTaskOnImplThread(const base::Closure& task,
base::TimeDelta delay) override {
animation_task_ = task;
requested_animation_delay_ = delay;
}
void DidActivateSyncTree() override {}
void WillPrepareTiles() override {}
void DidPrepareTiles() override {}
void DidCompletePageScaleAnimationOnImplThread() override {
did_complete_page_scale_animation_ = true;
}
void OnDrawForCompositorFrameSink(bool resourceless_software_draw) override {
std::unique_ptr<TestFrameData> frame(new TestFrameData);
EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(frame.get()));
last_on_draw_render_passes_.clear();
RenderPass::CopyAll(frame->render_passes, &last_on_draw_render_passes_);
host_impl_->DrawLayers(frame.get());
host_impl_->DidDrawAllLayers(*frame);
last_on_draw_frame_ = std::move(frame);
}
void NeedsImplSideInvalidation() override {
did_request_impl_side_invalidation_ = true;
}
void set_reduce_memory_result(bool reduce_memory_result) {
reduce_memory_result_ = reduce_memory_result;
}
virtual bool CreateHostImpl(
const LayerTreeSettings& settings,
std::unique_ptr<CompositorFrameSink> compositor_frame_sink) {
return CreateHostImplWithTaskRunnerProvider(
settings, std::move(compositor_frame_sink), &task_runner_provider_);
}
AnimationHost* GetImplAnimationHost() const {
return static_cast<AnimationHost*>(host_impl_->mutator_host());
}
virtual bool CreateHostImplWithTaskRunnerProvider(
const LayerTreeSettings& settings,
std::unique_ptr<CompositorFrameSink> compositor_frame_sink,
TaskRunnerProvider* task_runner_provider) {
if (host_impl_)
host_impl_->ReleaseCompositorFrameSink();
host_impl_.reset();
InitializeImageWorker(settings);
host_impl_ = LayerTreeHostImpl::Create(
settings, this, task_runner_provider, &stats_instrumentation_,
&task_graph_runner_,
AnimationHost::CreateForTesting(ThreadInstance::IMPL), 0,
image_worker_ ? image_worker_->task_runner() : nullptr);
compositor_frame_sink_ = std::move(compositor_frame_sink);
host_impl_->SetVisible(true);
bool init = host_impl_->InitializeRenderer(compositor_frame_sink_.get());
host_impl_->SetViewportSize(gfx::Size(10, 10));
host_impl_->active_tree()->PushPageScaleFromMainThread(1.f, 1.f, 1.f);
// Set the BeginFrameArgs so that methods which use it are able to.
host_impl_->WillBeginImplFrame(CreateBeginFrameArgsForTesting(
BEGINFRAME_FROM_HERE, 0, 1,
base::TimeTicks() + base::TimeDelta::FromMilliseconds(1)));
host_impl_->DidFinishImplFrame();
timeline_ =
AnimationTimeline::Create(AnimationIdProvider::NextTimelineId());
GetImplAnimationHost()->AddAnimationTimeline(timeline_);
return init;
}
void SetupRootLayerImpl(std::unique_ptr<LayerImpl> root) {
root->SetPosition(gfx::PointF());
root->SetBounds(gfx::Size(10, 10));
root->SetDrawsContent(true);
root->draw_properties().visible_layer_rect = gfx::Rect(0, 0, 10, 10);
root->test_properties()->force_render_surface = true;
host_impl_->active_tree()->SetRootLayerForTesting(std::move(root));
}
static gfx::Vector2dF ScrollDelta(LayerImpl* layer_impl) {
gfx::ScrollOffset delta =
layer_impl->layer_tree_impl()
->property_trees()
->scroll_tree.GetScrollOffsetDeltaForTesting(layer_impl->id());
return gfx::Vector2dF(delta.x(), delta.y());
}
static void ExpectClearedScrollDeltasRecursive(LayerImpl* root) {
for (auto* layer : *root->layer_tree_impl())
ASSERT_EQ(ScrollDelta(layer), gfx::Vector2d());
}
static ::testing::AssertionResult ScrollInfoContains(
const ScrollAndScaleSet& scroll_info,
int id,
const gfx::Vector2d& scroll_delta) {
int times_encountered = 0;
for (size_t i = 0; i < scroll_info.scrolls.size(); ++i) {
if (scroll_info.scrolls[i].layer_id != id)
continue;
if (scroll_delta != scroll_info.scrolls[i].scroll_delta) {
return ::testing::AssertionFailure()
<< "Expected " << scroll_delta.ToString() << ", not "
<< scroll_info.scrolls[i].scroll_delta.ToString();
}
times_encountered++;
}
if (id == scroll_info.inner_viewport_scroll.layer_id) {
if (scroll_delta != scroll_info.inner_viewport_scroll.scroll_delta) {
return ::testing::AssertionFailure()
<< "Expected " << scroll_delta.ToString() << ", not "
<< scroll_info.inner_viewport_scroll.scroll_delta.ToString();
}
times_encountered++;
}
if (times_encountered != 1)
return ::testing::AssertionFailure() << "No layer found with id " << id;
return ::testing::AssertionSuccess();
}
static void ExpectNone(const ScrollAndScaleSet& scroll_info, int id) {
int times_encountered = 0;
for (size_t i = 0; i < scroll_info.scrolls.size(); ++i) {
if (scroll_info.scrolls[i].layer_id != id)
continue;
times_encountered++;
}
ASSERT_EQ(0, times_encountered);
}
LayerImpl* CreateScrollAndContentsLayers(LayerTreeImpl* layer_tree_impl,
const gfx::Size& content_size) {
// Create both an inner viewport scroll layer and an outer viewport scroll
// layer. The MaxScrollOffset of the outer viewport scroll layer will be
// 0x0, so the scrolls will be applied directly to the inner viewport.
const int kOuterViewportClipLayerId = 116;
const int kOuterViewportScrollLayerId = 117;
const int kContentLayerId = 118;
const int kInnerViewportScrollLayerId = 2;
const int kInnerViewportClipLayerId = 4;
const int kPageScaleLayerId = 5;
std::unique_ptr<LayerImpl> root = LayerImpl::Create(layer_tree_impl, 1);
root->SetBounds(content_size);
root->SetPosition(gfx::PointF());
root->test_properties()->force_render_surface = true;
std::unique_ptr<LayerImpl> inner_scroll =
LayerImpl::Create(layer_tree_impl, kInnerViewportScrollLayerId);
inner_scroll->test_properties()->is_container_for_fixed_position_layers =
true;
inner_scroll->layer_tree_impl()
->property_trees()
->scroll_tree.UpdateScrollOffsetBaseForTesting(inner_scroll->id(),
gfx::ScrollOffset());
std::unique_ptr<LayerImpl> inner_clip =
LayerImpl::Create(layer_tree_impl, kInnerViewportClipLayerId);
inner_clip->SetBounds(
gfx::Size(content_size.width() / 2, content_size.height() / 2));
std::unique_ptr<LayerImpl> page_scale =
LayerImpl::Create(layer_tree_impl, kPageScaleLayerId);
inner_scroll->SetScrollClipLayer(inner_clip->id());
inner_scroll->SetElementId(
LayerIdToElementIdForTesting(inner_scroll->id()));
inner_scroll->SetBounds(content_size);
inner_scroll->SetPosition(gfx::PointF());
std::unique_ptr<LayerImpl> outer_clip =
LayerImpl::Create(layer_tree_impl, kOuterViewportClipLayerId);
outer_clip->SetBounds(content_size);
outer_clip->test_properties()->is_container_for_fixed_position_layers =
true;
std::unique_ptr<LayerImpl> outer_scroll =
LayerImpl::Create(layer_tree_impl, kOuterViewportScrollLayerId);
outer_scroll->SetScrollClipLayer(outer_clip->id());
outer_scroll->SetElementId(
LayerIdToElementIdForTesting(outer_scroll->id()));
outer_scroll->layer_tree_impl()
->property_trees()
->scroll_tree.UpdateScrollOffsetBaseForTesting(outer_scroll->id(),
gfx::ScrollOffset());
outer_scroll->SetBounds(content_size);
outer_scroll->SetPosition(gfx::PointF());
std::unique_ptr<LayerImpl> contents =
LayerImpl::Create(layer_tree_impl, kContentLayerId);
contents->SetDrawsContent(true);
contents->SetBounds(content_size);
contents->SetPosition(gfx::PointF());
outer_scroll->test_properties()->AddChild(std::move(contents));
outer_clip->test_properties()->AddChild(std::move(outer_scroll));
inner_scroll->test_properties()->AddChild(std::move(outer_clip));
page_scale->test_properties()->AddChild(std::move(inner_scroll));
inner_clip->test_properties()->AddChild(std::move(page_scale));
root->test_properties()->AddChild(std::move(inner_clip));
layer_tree_impl->SetRootLayerForTesting(std::move(root));
layer_tree_impl->BuildPropertyTreesForTesting();
layer_tree_impl->SetViewportLayersFromIds(
Layer::INVALID_ID, kPageScaleLayerId, kInnerViewportScrollLayerId,
kOuterViewportScrollLayerId);
layer_tree_impl->DidBecomeActive();
return layer_tree_impl->InnerViewportScrollLayer();
}
LayerImpl* SetupScrollAndContentsLayers(const gfx::Size& content_size) {
LayerImpl* scroll_layer =
CreateScrollAndContentsLayers(host_impl_->active_tree(), content_size);
host_impl_->active_tree()->DidBecomeActive();
return scroll_layer;
}
// Sets up a typical virtual viewport setup with one child content layer.
// Returns a pointer to the content layer.
LayerImpl* CreateBasicVirtualViewportLayers(const gfx::Size& viewport_size,
const gfx::Size& content_size) {
// CreateScrollAndContentsLayers makes the outer viewport unscrollable and
// the inner a different size from the outer. We'll reuse its layer
// hierarchy but adjust the sizing to our needs.
CreateScrollAndContentsLayers(host_impl_->active_tree(), content_size);
LayerImpl* content_layer = host_impl_->OuterViewportScrollLayer()
->test_properties()
->children.back();
content_layer->SetBounds(content_size);
host_impl_->OuterViewportScrollLayer()->SetBounds(content_size);
LayerImpl* outer_clip =
host_impl_->OuterViewportScrollLayer()->test_properties()->parent;
outer_clip->SetBounds(viewport_size);
LayerImpl* inner_clip_layer = host_impl_->InnerViewportScrollLayer()
->test_properties()
->parent->test_properties()
->parent;
inner_clip_layer->SetBounds(viewport_size);
host_impl_->InnerViewportScrollLayer()->SetBounds(viewport_size);
host_impl_->active_tree()->BuildPropertyTreesForTesting();
host_impl_->SetViewportSize(viewport_size);
host_impl_->active_tree()->DidBecomeActive();
return content_layer;
}
std::unique_ptr<LayerImpl> CreateScrollableLayer(int id,
const gfx::Size& size,
LayerImpl* clip_layer) {
DCHECK(clip_layer);
DCHECK(id != clip_layer->id());
std::unique_ptr<LayerImpl> layer =
LayerImpl::Create(host_impl_->active_tree(), id);
layer->SetScrollClipLayer(clip_layer->id());
layer->SetElementId(LayerIdToElementIdForTesting(layer->id()));
layer->SetDrawsContent(true);
layer->SetBounds(size);
clip_layer->SetBounds(gfx::Size(size.width() / 2, size.height() / 2));
return layer;
}
std::unique_ptr<ScrollState> BeginState(const gfx::Point& point) {
ScrollStateData scroll_state_data;
scroll_state_data.is_beginning = true;
scroll_state_data.position_x = point.x();
scroll_state_data.position_y = point.y();
std::unique_ptr<ScrollState> scroll_state(
new ScrollState(scroll_state_data));
return scroll_state;
}
std::unique_ptr<ScrollState> UpdateState(const gfx::Point& point,
const gfx::Vector2dF& delta) {
ScrollStateData scroll_state_data;
scroll_state_data.delta_x = delta.x();
scroll_state_data.delta_y = delta.y();
scroll_state_data.position_x = point.x();
scroll_state_data.position_y = point.y();
std::unique_ptr<ScrollState> scroll_state(
new ScrollState(scroll_state_data));
return scroll_state;
}
std::unique_ptr<ScrollState> EndState() {
ScrollStateData scroll_state_data;
scroll_state_data.is_ending = true;
std::unique_ptr<ScrollState> scroll_state(
new ScrollState(scroll_state_data));
return scroll_state;
}
void DrawFrame() {
TestFrameData frame;
EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
host_impl_->DrawLayers(&frame);
host_impl_->DidDrawAllLayers(frame);
}
void pinch_zoom_pan_viewport_forces_commit_redraw(float device_scale_factor);
void pinch_zoom_pan_viewport_test(float device_scale_factor);
void pinch_zoom_pan_viewport_and_scroll_test(float device_scale_factor);
void pinch_zoom_pan_viewport_and_scroll_boundary_test(
float device_scale_factor);
void SetupMouseMoveAtWithDeviceScale(float device_scale_factor);
void SetupMouseMoveAtTestScrollbarStates(bool main_thread_scrolling);
scoped_refptr<AnimationTimeline> timeline() { return timeline_; }
protected:
virtual std::unique_ptr<CompositorFrameSink> CreateCompositorFrameSink() {
return FakeCompositorFrameSink::Create3dForGpuRasterization();
}
void DrawOneFrame() {
TestFrameData frame_data;
host_impl_->PrepareToDraw(&frame_data);
host_impl_->DidDrawAllLayers(frame_data);
}
static void SetScrollOffsetDelta(LayerImpl* layer_impl,
const gfx::Vector2dF& delta) {
if (layer_impl->layer_tree_impl()
->property_trees()
->scroll_tree.SetScrollOffsetDeltaForTesting(layer_impl->id(),
delta))
layer_impl->layer_tree_impl()->DidUpdateScrollOffset(layer_impl->id());
}
void BeginImplFrameAndAnimate(BeginFrameArgs begin_frame_args,
base::TimeTicks frame_time) {
begin_frame_args.frame_time = frame_time;
host_impl_->WillBeginImplFrame(begin_frame_args);
host_impl_->Animate();
host_impl_->UpdateAnimationState(true);
host_impl_->DidFinishImplFrame();
}
void InitializeImageWorker(const LayerTreeSettings& settings) {
if (settings.enable_checker_imaging) {
image_worker_ = base::MakeUnique<base::Thread>("ImageWorker");
ASSERT_TRUE(image_worker_->Start());
} else {
image_worker_.reset();
}
}
FakeImplTaskRunnerProvider task_runner_provider_;
DebugScopedSetMainThreadBlocked always_main_thread_blocked_;
TestTaskGraphRunner task_graph_runner_;
std::unique_ptr<CompositorFrameSink> compositor_frame_sink_;
std::unique_ptr<LayerTreeHostImpl> host_impl_;
FakeRenderingStatsInstrumentation stats_instrumentation_;
bool on_can_draw_state_changed_called_;
bool did_notify_ready_to_activate_;
bool did_request_commit_;
bool did_request_redraw_;
bool did_request_next_frame_;
bool did_request_prepare_tiles_;
bool did_complete_page_scale_animation_;
bool reduce_memory_result_;
bool did_request_impl_side_invalidation_;
base::Closure animation_task_;
base::TimeDelta requested_animation_delay_;
std::unique_ptr<TestFrameData> last_on_draw_frame_;
RenderPassList last_on_draw_render_passes_;
scoped_refptr<AnimationTimeline> timeline_;
std::unique_ptr<base::Thread> image_worker_;
};
// A test fixture for new animation timelines tests.
class LayerTreeHostImplTimelinesTest : public LayerTreeHostImplTest {
public:
void SetUp() override {
CreateHostImpl(DefaultSettings(), CreateCompositorFrameSink());
}
};
TEST_F(LayerTreeHostImplTest, NotifyIfCanDrawChanged) {
// Note: It is not possible to disable the renderer once it has been set,
// so we do not need to test that disabling the renderer notifies us
// that can_draw changed.
EXPECT_FALSE(host_impl_->CanDraw());
on_can_draw_state_changed_called_ = false;
// Set up the root layer, which allows us to draw.
SetupScrollAndContentsLayers(gfx::Size(100, 100));
EXPECT_TRUE(host_impl_->CanDraw());
EXPECT_TRUE(on_can_draw_state_changed_called_);
on_can_draw_state_changed_called_ = false;
// Toggle the root layer to make sure it toggles can_draw
host_impl_->active_tree()->SetRootLayerForTesting(nullptr);
host_impl_->active_tree()->DetachLayers();
EXPECT_FALSE(host_impl_->CanDraw());
EXPECT_TRUE(on_can_draw_state_changed_called_);
on_can_draw_state_changed_called_ = false;
SetupScrollAndContentsLayers(gfx::Size(100, 100));
EXPECT_TRUE(host_impl_->CanDraw());
EXPECT_TRUE(on_can_draw_state_changed_called_);
on_can_draw_state_changed_called_ = false;
// Toggle the device viewport size to make sure it toggles can_draw.
host_impl_->SetViewportSize(gfx::Size());
EXPECT_FALSE(host_impl_->CanDraw());
EXPECT_TRUE(on_can_draw_state_changed_called_);
on_can_draw_state_changed_called_ = false;
host_impl_->SetViewportSize(gfx::Size(100, 100));
EXPECT_TRUE(host_impl_->CanDraw());
EXPECT_TRUE(on_can_draw_state_changed_called_);
on_can_draw_state_changed_called_ = false;
}
TEST_F(LayerTreeHostImplTest, ResourcelessDrawWithEmptyViewport) {
CreateHostImpl(DefaultSettings(), FakeCompositorFrameSink::CreateSoftware());
SetupScrollAndContentsLayers(gfx::Size(100, 100));
host_impl_->active_tree()->BuildPropertyTreesForTesting();
EXPECT_TRUE(host_impl_->CanDraw());
host_impl_->SetViewportSize(gfx::Size());
EXPECT_FALSE(host_impl_->CanDraw());
FakeCompositorFrameSink* fake_compositor_frame_sink =
static_cast<FakeCompositorFrameSink*>(
host_impl_->compositor_frame_sink());
EXPECT_EQ(fake_compositor_frame_sink->num_sent_frames(), 0u);
gfx::Transform identity;
gfx::Rect viewport(100, 100);
const bool resourceless_software_draw = true;
host_impl_->OnDraw(identity, viewport, resourceless_software_draw);
ASSERT_EQ(fake_compositor_frame_sink->num_sent_frames(), 1u);
EXPECT_EQ(
gfx::SizeF(100.f, 100.f),
fake_compositor_frame_sink->last_sent_frame()->metadata.root_layer_size);
}
TEST_F(LayerTreeHostImplTest, ScrollDeltaNoLayers) {
ASSERT_FALSE(host_impl_->active_tree()->root_layer_for_testing());
std::unique_ptr<ScrollAndScaleSet> scroll_info =
host_impl_->ProcessScrollDeltas();
ASSERT_EQ(scroll_info->scrolls.size(), 0u);
}
TEST_F(LayerTreeHostImplTest, ScrollDeltaTreeButNoChanges) {
{
std::unique_ptr<LayerImpl> root =
LayerImpl::Create(host_impl_->active_tree(), 1);
root->test_properties()->AddChild(
LayerImpl::Create(host_impl_->active_tree(), 2));
root->test_properties()->AddChild(
LayerImpl::Create(host_impl_->active_tree(), 3));
root->test_properties()->children[1]->test_properties()->AddChild(
LayerImpl::Create(host_impl_->active_tree(), 4));
root->test_properties()->children[1]->test_properties()->AddChild(
LayerImpl::Create(host_impl_->active_tree(), 5));
root->test_properties()
->children[1]
->test_properties()
->children[0]
->test_properties()
->AddChild(LayerImpl::Create(host_impl_->active_tree(), 6));
host_impl_->active_tree()->SetRootLayerForTesting(std::move(root));
}
LayerImpl* root = *host_impl_->active_tree()->begin();
ExpectClearedScrollDeltasRecursive(root);
std::unique_ptr<ScrollAndScaleSet> scroll_info;
scroll_info = host_impl_->ProcessScrollDeltas();
ASSERT_EQ(scroll_info->scrolls.size(), 0u);
ExpectClearedScrollDeltasRecursive(root);
scroll_info = host_impl_->ProcessScrollDeltas();
ASSERT_EQ(scroll_info->scrolls.size(), 0u);
ExpectClearedScrollDeltasRecursive(root);
}
TEST_F(LayerTreeHostImplTest, ScrollDeltaRepeatedScrolls) {
gfx::ScrollOffset scroll_offset(20, 30);
gfx::Vector2d scroll_delta(11, -15);
auto root_clip_owned = LayerImpl::Create(host_impl_->active_tree(), 2);
auto* root_clip = root_clip_owned.get();
auto root_owned = LayerImpl::Create(host_impl_->active_tree(), 1);
auto* root = root_owned.get();
root_clip->SetBounds(gfx::Size(10, 10));
root_clip->test_properties()->AddChild(std::move(root_owned));
root->SetBounds(gfx::Size(110, 110));
root->SetScrollClipLayer(root_clip->id());
root->SetElementId(LayerIdToElementIdForTesting(root->id()));
root->layer_tree_impl()
->property_trees()
->scroll_tree.UpdateScrollOffsetBaseForTesting(root->id(), scroll_offset);
host_impl_->active_tree()->SetRootLayerForTesting(std::move(root_clip_owned));
host_impl_->active_tree()->BuildPropertyTreesForTesting();
std::unique_ptr<ScrollAndScaleSet> scroll_info;
root->ScrollBy(scroll_delta);
scroll_info = host_impl_->ProcessScrollDeltas();
ASSERT_EQ(scroll_info->scrolls.size(), 1u);
EXPECT_TRUE(ScrollInfoContains(*scroll_info, root->id(), scroll_delta));
gfx::Vector2d scroll_delta2(-5, 27);
root->ScrollBy(scroll_delta2);
scroll_info = host_impl_->ProcessScrollDeltas();
ASSERT_EQ(scroll_info->scrolls.size(), 1u);
EXPECT_TRUE(ScrollInfoContains(*scroll_info, root->id(),
scroll_delta + scroll_delta2));
root->ScrollBy(gfx::Vector2d());
scroll_info = host_impl_->ProcessScrollDeltas();
EXPECT_TRUE(ScrollInfoContains(*scroll_info, root->id(),
scroll_delta + scroll_delta2));
}
TEST_F(LayerTreeHostImplTest, ScrollRootCallsCommitAndRedraw) {
SetupScrollAndContentsLayers(gfx::Size(100, 100));
host_impl_->active_tree()->BuildPropertyTreesForTesting();
host_impl_->SetViewportSize(gfx::Size(50, 50));
DrawFrame();
InputHandler::ScrollStatus status = host_impl_->ScrollBegin(
BeginState(gfx::Point()).get(), InputHandler::WHEEL);
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
status.main_thread_scrolling_reasons);
EXPECT_TRUE(host_impl_->IsCurrentlyScrollingLayerAt(gfx::Point(),
InputHandler::WHEEL));
host_impl_->ScrollBy(UpdateState(gfx::Point(), gfx::Vector2d(0, 10)).get());
EXPECT_TRUE(host_impl_->IsCurrentlyScrollingLayerAt(gfx::Point(0, 10),
InputHandler::WHEEL));
host_impl_->ScrollEnd(EndState().get());
EXPECT_FALSE(host_impl_->IsCurrentlyScrollingLayerAt(gfx::Point(),
InputHandler::WHEEL));
EXPECT_TRUE(did_request_redraw_);
EXPECT_TRUE(did_request_commit_);
}
TEST_F(LayerTreeHostImplTest, ScrollActiveOnlyAfterScrollMovement) {
SetupScrollAndContentsLayers(gfx::Size(100, 100));
host_impl_->active_tree()->BuildPropertyTreesForTesting();
host_impl_->SetViewportSize(gfx::Size(50, 50));
DrawFrame();
InputHandler::ScrollStatus status = host_impl_->ScrollBegin(
BeginState(gfx::Point()).get(), InputHandler::WHEEL);
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
status.main_thread_scrolling_reasons);
EXPECT_FALSE(host_impl_->IsActivelyScrolling());
host_impl_->ScrollBy(UpdateState(gfx::Point(), gfx::Vector2d(0, 10)).get());
EXPECT_TRUE(host_impl_->IsActivelyScrolling());
host_impl_->ScrollEnd(EndState().get());
EXPECT_FALSE(host_impl_->IsActivelyScrolling());
}
TEST_F(LayerTreeHostImplTest, ScrollWithoutRootLayer) {
// We should not crash when trying to scroll an empty layer tree.
InputHandler::ScrollStatus status = host_impl_->ScrollBegin(
BeginState(gfx::Point()).get(), InputHandler::WHEEL);
EXPECT_EQ(InputHandler::SCROLL_IGNORED, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNoScrollingLayer,
status.main_thread_scrolling_reasons);
}
TEST_F(LayerTreeHostImplTest, ScrollWithoutRenderer) {
std::unique_ptr<TestWebGraphicsContext3D> context_owned =
TestWebGraphicsContext3D::Create();
context_owned->set_context_lost(true);
// Initialization will fail.
EXPECT_FALSE(CreateHostImpl(
DefaultSettings(),
FakeCompositorFrameSink::Create3d(std::move(context_owned))));
SetupScrollAndContentsLayers(gfx::Size(100, 100));
// We should not crash when trying to scroll after the renderer initialization
// fails.
InputHandler::ScrollStatus status = host_impl_->ScrollBegin(
BeginState(gfx::Point()).get(), InputHandler::WHEEL);
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
status.main_thread_scrolling_reasons);
}
TEST_F(LayerTreeHostImplTest, ReplaceTreeWhileScrolling) {
LayerImpl* scroll_layer = SetupScrollAndContentsLayers(gfx::Size(100, 100));
host_impl_->SetViewportSize(gfx::Size(50, 50));
DrawFrame();
// We should not crash if the tree is replaced while we are scrolling.
EXPECT_EQ(
InputHandler::SCROLL_ON_IMPL_THREAD,
host_impl_
->ScrollBegin(BeginState(gfx::Point()).get(), InputHandler::WHEEL)
.thread);
host_impl_->active_tree()->DetachLayers();
scroll_layer = SetupScrollAndContentsLayers(gfx::Size(100, 100));
// We should still be scrolling, because the scrolled layer also exists in the
// new tree.
gfx::Vector2d scroll_delta(0, 10);
host_impl_->ScrollBy(UpdateState(gfx::Point(), scroll_delta).get());
host_impl_->ScrollEnd(EndState().get());
std::unique_ptr<ScrollAndScaleSet> scroll_info =
host_impl_->ProcessScrollDeltas();
EXPECT_TRUE(
ScrollInfoContains(*scroll_info, scroll_layer->id(), scroll_delta));
}
TEST_F(LayerTreeHostImplTest, ScrollBlocksOnWheelEventHandlers) {
SetupScrollAndContentsLayers(gfx::Size(100, 100));
host_impl_->SetViewportSize(gfx::Size(50, 50));
DrawFrame();
// Wheel handlers determine whether mouse events block scroll.
host_impl_->active_tree()->set_event_listener_properties(
EventListenerClass::kMouseWheel, EventListenerProperties::kBlocking);
EXPECT_EQ(
EventListenerProperties::kBlocking,
host_impl_->GetEventListenerProperties(EventListenerClass::kMouseWheel));
// But they don't influence the actual handling of the scroll gestures.
InputHandler::ScrollStatus status = host_impl_->ScrollBegin(
BeginState(gfx::Point()).get(), InputHandler::WHEEL);
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
status.main_thread_scrolling_reasons);
host_impl_->ScrollEnd(EndState().get());
}
TEST_F(LayerTreeHostImplTest, ScrollBlocksOnTouchEventHandlers) {
LayerImpl* scroll = SetupScrollAndContentsLayers(gfx::Size(100, 100));
host_impl_->SetViewportSize(gfx::Size(50, 50));
DrawFrame();
LayerImpl* root = host_impl_->active_tree()->root_layer_for_testing();
LayerImpl* child = 0;
{
std::unique_ptr<LayerImpl> child_layer =
LayerImpl::Create(host_impl_->active_tree(), 6);
child = child_layer.get();
child_layer->SetDrawsContent(true);
child_layer->SetPosition(gfx::PointF(0, 20));
child_layer->SetBounds(gfx::Size(50, 50));
scroll->test_properties()->AddChild(std::move(child_layer));
host_impl_->active_tree()->BuildPropertyTreesForTesting();
}
// Touch handler regions determine whether touch events block scroll.
root->SetTouchEventHandlerRegion(gfx::Rect(0, 0, 100, 100));
EXPECT_EQ(InputHandler::TouchStartEventListenerType::HANDLER,
host_impl_->EventListenerTypeForTouchStartAt(gfx::Point(10, 10)));
// But they don't influence the actual handling of the scroll gestures.
InputHandler::ScrollStatus status = host_impl_->ScrollBegin(
BeginState(gfx::Point()).get(), InputHandler::TOUCHSCREEN);
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
status.main_thread_scrolling_reasons);
host_impl_->ScrollEnd(EndState().get());
EXPECT_EQ(InputHandler::TouchStartEventListenerType::HANDLER,
host_impl_->EventListenerTypeForTouchStartAt(gfx::Point(10, 30)));
root->SetTouchEventHandlerRegion(gfx::Rect());
EXPECT_EQ(InputHandler::TouchStartEventListenerType::NO_HANDLER,
host_impl_->EventListenerTypeForTouchStartAt(gfx::Point(10, 30)));
child->SetTouchEventHandlerRegion(gfx::Rect(0, 0, 50, 50));
EXPECT_EQ(InputHandler::TouchStartEventListenerType::HANDLER,
host_impl_->EventListenerTypeForTouchStartAt(gfx::Point(10, 30)));
}
TEST_F(LayerTreeHostImplTest, FlingOnlyWhenScrollingTouchscreen) {
SetupScrollAndContentsLayers(gfx::Size(100, 100));
host_impl_->SetViewportSize(gfx::Size(50, 50));
DrawFrame();
// Ignore the fling since no layer is being scrolled
InputHandler::ScrollStatus status = host_impl_->FlingScrollBegin();
EXPECT_EQ(InputHandler::SCROLL_IGNORED, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNoScrollingLayer,
status.main_thread_scrolling_reasons);
// Start scrolling a layer
status = host_impl_->ScrollBegin(BeginState(gfx::Point()).get(),
InputHandler::TOUCHSCREEN);
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
status.main_thread_scrolling_reasons);
// Now the fling should go ahead since we've started scrolling a layer
status = host_impl_->FlingScrollBegin();
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
status.main_thread_scrolling_reasons);
}
TEST_F(LayerTreeHostImplTest, FlingOnlyWhenScrollingTouchpad) {
SetupScrollAndContentsLayers(gfx::Size(100, 100));
host_impl_->SetViewportSize(gfx::Size(50, 50));
DrawFrame();
// Ignore the fling since no layer is being scrolled
InputHandler::ScrollStatus status = host_impl_->FlingScrollBegin();
EXPECT_EQ(InputHandler::SCROLL_IGNORED, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNoScrollingLayer,
status.main_thread_scrolling_reasons);
// Start scrolling a layer
status = host_impl_->ScrollBegin(BeginState(gfx::Point()).get(),
InputHandler::WHEEL);
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
status.main_thread_scrolling_reasons);
// Now the fling should go ahead since we've started scrolling a layer
status = host_impl_->FlingScrollBegin();
EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
status.main_thread_scrolling_reasons);
}
TEST_F(LayerTreeHostImplTest, NoFlingWhenScrollingOnMain) {
SetupScrollAndContentsLayers(gfx::Size(100, 100));
host_impl_->SetViewportSize(gfx::Size(50, 50));
LayerImpl* root = host_impl_->active_tree()->root_layer_for_testing();
root->set_main_thread_scrolling_reasons(
MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects);
host_impl_->active_tree()->BuildPropertyTreesForTesting();
DrawFrame();
// Start scrolling a layer
InputHandler::ScrollStatus status = host_impl_->ScrollBegin(
BeginState(gfx::Point()).get(), InputHandler::TOUCHSCREEN);
EXPECT_EQ(InputHandler::SCROLL_ON_MAIN_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects,
status.main_thread_scrolling_reasons);
// The fling should be ignored since there's no layer being scrolled impl-side
status = host_impl_->FlingScrollBegin();
EXPECT_EQ(InputHandler::SCROLL_IGNORED, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kNoScrollingLayer,
status.main_thread_scrolling_reasons);
}
TEST_F(LayerTreeHostImplTest, ShouldScrollOnMainThread) {
SetupScrollAndContentsLayers(gfx::Size(100, 100));
host_impl_->SetViewportSize(gfx::Size(50, 50));
LayerImpl* root = host_impl_->active_tree()->root_layer_for_testing();
root->set_main_thread_scrolling_reasons(
MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects);
host_impl_->active_tree()->BuildPropertyTreesForTesting();
DrawFrame();
InputHandler::ScrollStatus status = host_impl_->ScrollBegin(
BeginState(gfx::Point()).get(), InputHandler::WHEEL);
EXPECT_EQ(InputHandler::SCROLL_ON_MAIN_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects,
status.main_thread_scrolling_reasons);
status = host_impl_->ScrollBegin(BeginState(gfx::Point()).get(),
InputHandler::TOUCHSCREEN);
EXPECT_EQ(InputHandler::SCROLL_ON_MAIN_THREAD, status.thread);
EXPECT_EQ(MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects,
status.main_thread_scrolling_reasons);
}
TEST_F(LayerTreeHostImplTest, ScrollWithOverlappingNonScrollableLayer) {
LayerTreeImpl* layer_tree_impl = host_impl_->active_tree();
gfx::Size content_size = gfx::Size(360, 600);
gfx::Size scroll_content_size = gfx::Size(345, 3800);
gfx::Size scrollbar_size = gfx::Size(15, 600);
host_impl_->SetViewportSize(content_size);
std::unique_ptr<LayerImpl> root = LayerImpl::Create(layer_tree_impl, 1);
root->SetBounds(content_size);
root->SetPosition(gfx::PointF());
std::unique_ptr<LayerImpl> clip = LayerImpl::Create(layer_tree_impl, 2);
clip->SetBounds(content_size);
clip->SetPosition(gfx::PointF());
std::unique_ptr<LayerImpl> scroll = LayerImpl::Create(layer_tree_impl, 3);
scroll->SetBounds(scroll_content_size);
scroll->SetScrollClipLayer(clip->id());
scroll->SetElementId(LayerIdToElementIdForTesting(scroll->id()));
scroll->SetDrawsContent(true);
std::unique_ptr<SolidColorScrollbarLayerImpl> scrollbar =
SolidColorScrollbarLayerImpl::Create(layer_tree_impl, 4, VERTICAL, 10, 0,
false, true);
scrollbar->SetBounds(scrollbar_size);
scrollbar->SetPosition(gfx::PointF(345, 0));
scrollbar->SetScrollLayerId(scroll->id());
scrollbar->SetDrawsContent(true);
scrollbar->test_properties()->opacity = 1.f;
std::unique_ptr<LayerImpl> squash1 = LayerImpl::Create(layer_tree_impl, 5);
squash1->SetBounds(gfx::Size(140, 300));
squash1->SetPosition(gfx::PointF(220, 0));
squash1->SetDrawsContent(true);
std::unique_ptr<LayerImpl> squash2 = LayerImpl::Create(layer_tree_impl, 6);
squash2->SetBounds(gfx::Size(140, 300));
squash2->SetPosition(gfx::PointF(220, 300));
squash2->SetDrawsContent(true);
scroll->test_properties()->AddChild(std::move(squash2));
clip->test_properties()->AddChild(std::move(scroll));