blob: 4e3c52d3fe9a38434d7a7b836a9ac749e462c613 [file] [log] [blame]
// 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/layers/layer_impl.h"
#include "base/stl_util.h"
#include "cc/layers/painted_scrollbar_layer_impl.h"
#include "cc/layers/solid_color_scrollbar_layer_impl.h"
#include "cc/paint/filter_operation.h"
#include "cc/paint/filter_operations.h"
#include "cc/test/animation_test_common.h"
#include "cc/test/fake_impl_task_runner_provider.h"
#include "cc/test/fake_layer_tree_frame_sink.h"
#include "cc/test/fake_layer_tree_host_impl.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/test/test_task_graph_runner.h"
#include "cc/trees/layer_tree_impl.h"
#include "cc/trees/single_thread_proxy.h"
#include "cc/trees/tree_synchronizer.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/effects/SkBlurImageFilter.h"
namespace cc {
namespace {
#define EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(code_to_test) \
root->layer_tree_impl()->ResetAllChangeTracking(); \
code_to_test; \
EXPECT_FALSE(root->LayerPropertyChanged()); \
EXPECT_FALSE(child->LayerPropertyChanged()); \
EXPECT_FALSE(grand_child->LayerPropertyChanged());
#define EXECUTE_AND_VERIFY_SUBTREE_CHANGED(code_to_test) \
root->layer_tree_impl()->ResetAllChangeTracking(); \
code_to_test; \
EXPECT_TRUE(root->LayerPropertyChanged()); \
EXPECT_TRUE(root->LayerPropertyChangedFromPropertyTrees()); \
EXPECT_FALSE(root->LayerPropertyChangedNotFromPropertyTrees()); \
EXPECT_TRUE(child->LayerPropertyChanged()); \
EXPECT_TRUE(child->LayerPropertyChangedFromPropertyTrees()); \
EXPECT_FALSE(child->LayerPropertyChangedNotFromPropertyTrees()); \
EXPECT_TRUE(grand_child->LayerPropertyChanged()); \
EXPECT_TRUE(grand_child->LayerPropertyChangedFromPropertyTrees()); \
EXPECT_FALSE(grand_child->LayerPropertyChangedNotFromPropertyTrees());
#define EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(code_to_test) \
root->layer_tree_impl()->ResetAllChangeTracking(); \
root->layer_tree_impl()->property_trees()->full_tree_damaged = false; \
code_to_test; \
EXPECT_TRUE(root->LayerPropertyChanged()); \
EXPECT_FALSE(root->LayerPropertyChangedFromPropertyTrees()); \
EXPECT_TRUE(root->LayerPropertyChangedNotFromPropertyTrees()); \
EXPECT_FALSE(child->LayerPropertyChanged()); \
EXPECT_FALSE(grand_child->LayerPropertyChanged());
#define VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(code_to_test) \
root->layer_tree_impl()->ResetAllChangeTracking(); \
host_impl.ForcePrepareToDraw(); \
EXPECT_FALSE(host_impl.active_tree()->needs_update_draw_properties()); \
code_to_test; \
EXPECT_TRUE(host_impl.active_tree()->needs_update_draw_properties());
#define VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(code_to_test) \
root->layer_tree_impl()->ResetAllChangeTracking(); \
host_impl.ForcePrepareToDraw(); \
EXPECT_FALSE(host_impl.active_tree()->needs_update_draw_properties()); \
code_to_test; \
EXPECT_FALSE(host_impl.active_tree()->needs_update_draw_properties());
static gfx::Vector2dF ScrollDelta(LayerImpl* layer_impl) {
gfx::ScrollOffset delta = layer_impl->layer_tree_impl()
->property_trees()
->scroll_tree.GetScrollOffsetDeltaForTesting(
layer_impl->element_id());
return gfx::Vector2dF(delta.x(), delta.y());
}
TEST(LayerImplTest, VerifyPendingLayerChangesAreTrackedProperly) {
//
// This test checks that LayerPropertyChanged() has the correct behavior.
//
// The constructor on this will fake that we are on the correct thread.
// Create a simple LayerImpl tree:
FakeImplTaskRunnerProvider task_runner_provider;
TestTaskGraphRunner task_graph_runner;
std::unique_ptr<LayerTreeFrameSink> layer_tree_frame_sink =
FakeLayerTreeFrameSink::Create3d();
FakeLayerTreeHostImpl host_impl(&task_runner_provider, &task_graph_runner);
host_impl.SetVisible(true);
EXPECT_TRUE(host_impl.InitializeFrameSink(layer_tree_frame_sink.get()));
host_impl.CreatePendingTree();
std::unique_ptr<LayerImpl> root_ptr =
LayerImpl::Create(host_impl.pending_tree(), 2);
LayerImpl* root = root_ptr.get();
host_impl.pending_tree()->SetRootLayerForTesting(std::move(root_ptr));
root->test_properties()->force_render_surface = true;
root->SetMasksToBounds(true);
root->layer_tree_impl()->ResetAllChangeTracking();
root->test_properties()->AddChild(
LayerImpl::Create(host_impl.pending_tree(), 7));
LayerImpl* child = root->test_properties()->children[0];
child->test_properties()->AddChild(
LayerImpl::Create(host_impl.pending_tree(), 8));
LayerImpl* grand_child = child->test_properties()->children[0];
host_impl.pending_tree()->BuildLayerListAndPropertyTreesForTesting();
// Adding children is an internal operation and should not mark layers as
// changed.
EXPECT_FALSE(root->LayerPropertyChanged());
EXPECT_FALSE(child->LayerPropertyChanged());
EXPECT_FALSE(grand_child->LayerPropertyChanged());
float arbitrary_number = 0.352f;
gfx::Size arbitrary_size = gfx::Size(111, 222);
gfx::Point arbitrary_point = gfx::Point(333, 444);
gfx::Rect arbitrary_rect = gfx::Rect(arbitrary_point, arbitrary_size);
SkColor arbitrary_color = SkColorSetRGB(10, 20, 30);
gfx::Transform arbitrary_transform;
arbitrary_transform.Scale3d(0.1f, 0.2f, 0.3f);
FilterOperations arbitrary_filters;
arbitrary_filters.Append(FilterOperation::CreateOpacityFilter(0.5f));
// These properties are internal, and should not be considered "change" when
// they are used.
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(
root->SetUpdateRect(arbitrary_rect));
EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->SetBounds(arbitrary_size));
host_impl.pending_tree()->property_trees()->needs_rebuild = true;
host_impl.pending_tree()->BuildLayerListAndPropertyTreesForTesting();
// Changing these properties affects the entire subtree of layers.
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(host_impl.pending_tree()->SetFilterMutated(
root->element_id(), arbitrary_filters));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(host_impl.pending_tree()->SetFilterMutated(
root->element_id(), FilterOperations()));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(
host_impl.pending_tree()->SetOpacityMutated(root->element_id(),
arbitrary_number));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(
host_impl.pending_tree()->SetTransformMutated(root->element_id(),
arbitrary_transform));
// Changing these properties only affects the layer itself.
EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->SetDrawsContent(true));
EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(
root->SetBackgroundColor(arbitrary_color));
// Changing these properties does not cause the layer to be marked as changed
// but does cause the layer to need to push properties.
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->SetElementId(ElementId(2)));
// After setting all these properties already, setting to the exact same
// values again should not cause any change.
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->SetMasksToBounds(true));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->SetContentsOpaque(true));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->SetDrawsContent(true));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->SetBounds(root->bounds()));
}
TEST(LayerImplTest, VerifyActiveLayerChangesAreTrackedProperly) {
FakeImplTaskRunnerProvider task_runner_provider;
TestTaskGraphRunner task_graph_runner;
std::unique_ptr<LayerTreeFrameSink> layer_tree_frame_sink =
FakeLayerTreeFrameSink::Create3d();
FakeLayerTreeHostImpl host_impl(&task_runner_provider, &task_graph_runner);
host_impl.SetVisible(true);
EXPECT_TRUE(host_impl.InitializeFrameSink(layer_tree_frame_sink.get()));
std::unique_ptr<LayerImpl> root_ptr =
LayerImpl::Create(host_impl.active_tree(), 2);
LayerImpl* root = root_ptr.get();
host_impl.active_tree()->SetRootLayerForTesting(std::move(root_ptr));
root->test_properties()->AddChild(
LayerImpl::Create(host_impl.active_tree(), 7));
LayerImpl* child = root->test_properties()->children[0];
root->SetScrollable(gfx::Size(100, 100));
host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
// Make root the outer viewport container layer. This ensures the later call
// to |SetViewportBoundsDelta| will be on a viewport layer.
LayerTreeImpl::ViewportLayerIds viewport_ids;
viewport_ids.outer_viewport_container = root->id();
host_impl.active_tree()->SetViewportLayersFromIds(viewport_ids);
root->SetMasksToBounds(true);
host_impl.active_tree()->property_trees()->needs_rebuild = true;
host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
root->layer_tree_impl()->ResetAllChangeTracking();
// SetViewportBoundsDelta changes subtree only when masks_to_bounds is true.
root->SetViewportBoundsDelta(gfx::Vector2d(222, 333));
EXPECT_TRUE(root->LayerPropertyChanged());
EXPECT_TRUE(root->LayerPropertyChangedFromPropertyTrees());
EXPECT_FALSE(root->LayerPropertyChangedNotFromPropertyTrees());
EXPECT_TRUE(host_impl.active_tree()->property_trees()->full_tree_damaged);
root->SetMasksToBounds(false);
host_impl.active_tree()->property_trees()->needs_rebuild = true;
host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
root->layer_tree_impl()->ResetAllChangeTracking();
// SetViewportBoundsDelta does not change the subtree without masks_to_bounds.
root->SetViewportBoundsDelta(gfx::Vector2d(333, 444));
EXPECT_TRUE(root->LayerPropertyChanged());
EXPECT_FALSE(root->LayerPropertyChangedFromPropertyTrees());
EXPECT_TRUE(root->LayerPropertyChangedNotFromPropertyTrees());
EXPECT_FALSE(host_impl.active_tree()->property_trees()->full_tree_damaged);
host_impl.active_tree()->property_trees()->needs_rebuild = true;
host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
root->layer_tree_impl()->ResetAllChangeTracking();
// Ensure some node is affected by the outer viewport bounds delta. This
// ensures the later call to |SetViewportBoundsDelta| will require a
// transform tree update.
TransformTree& transform_tree =
host_impl.active_tree()->property_trees()->transform_tree;
transform_tree.AddNodeAffectedByOuterViewportBoundsDelta(
child->transform_tree_index());
EXPECT_FALSE(transform_tree.needs_update());
root->SetViewportBoundsDelta(gfx::Vector2d(111, 222));
EXPECT_TRUE(transform_tree.needs_update());
host_impl.active_tree()->property_trees()->needs_rebuild = true;
host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
root->layer_tree_impl()->ResetAllChangeTracking();
// Ensure scrolling changes the transform tree but does not damage all trees.
root->ScrollBy(gfx::Vector2d(7, 9));
EXPECT_TRUE(transform_tree.needs_update());
EXPECT_TRUE(root->LayerPropertyChanged());
EXPECT_TRUE(root->LayerPropertyChangedFromPropertyTrees());
EXPECT_FALSE(root->LayerPropertyChangedNotFromPropertyTrees());
EXPECT_FALSE(host_impl.active_tree()->property_trees()->full_tree_damaged);
}
TEST(LayerImplTest, VerifyNeedsUpdateDrawProperties) {
FakeImplTaskRunnerProvider task_runner_provider;
TestTaskGraphRunner task_graph_runner;
std::unique_ptr<LayerTreeFrameSink> layer_tree_frame_sink =
FakeLayerTreeFrameSink::Create3d();
FakeLayerTreeHostImpl host_impl(&task_runner_provider, &task_graph_runner);
host_impl.SetVisible(true);
EXPECT_TRUE(host_impl.InitializeFrameSink(layer_tree_frame_sink.get()));
host_impl.active_tree()->SetRootLayerForTesting(
LayerImpl::Create(host_impl.active_tree(), 1));
LayerImpl* root = host_impl.active_tree()->root_layer_for_testing();
std::unique_ptr<LayerImpl> layer_ptr =
LayerImpl::Create(host_impl.active_tree(), 2);
LayerImpl* layer = layer_ptr.get();
root->test_properties()->AddChild(std::move(layer_ptr));
layer->SetScrollable(gfx::Size(1, 1));
std::unique_ptr<LayerImpl> layer2_ptr =
LayerImpl::Create(host_impl.active_tree(), 3);
LayerImpl* layer2 = layer2_ptr.get();
root->test_properties()->AddChild(std::move(layer2_ptr));
host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
DCHECK(host_impl.CanDraw());
float arbitrary_number = 0.352f;
gfx::Size arbitrary_size = gfx::Size(111, 222);
gfx::Vector2d arbitrary_vector2d = gfx::Vector2d(111, 222);
gfx::Size large_size = gfx::Size(1000, 1000);
SkColor arbitrary_color = SkColorSetRGB(10, 20, 30);
gfx::Transform arbitrary_transform;
arbitrary_transform.Scale3d(0.1f, 0.2f, 0.3f);
FilterOperations arbitrary_filters;
arbitrary_filters.Append(FilterOperation::CreateOpacityFilter(0.5f));
// Set layer to draw content so that their draw property by property trees is
// verified.
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetDrawsContent(true));
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer2->SetDrawsContent(true));
// Create a render surface, because we must have a render surface if we have
// filters.
layer->test_properties()->force_render_surface = true;
host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
// Related filter functions.
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(host_impl.active_tree()->SetFilterMutated(
root->element_id(), arbitrary_filters));
VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(
host_impl.active_tree()->SetFilterMutated(root->element_id(),
arbitrary_filters));
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(host_impl.active_tree()->SetFilterMutated(
root->element_id(), FilterOperations()));
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(host_impl.active_tree()->SetFilterMutated(
root->element_id(), arbitrary_filters));
// Related scrolling functions.
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetBounds(large_size));
VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetBounds(large_size));
host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
host_impl.active_tree()->set_needs_update_draw_properties();
host_impl.active_tree()->UpdateDrawProperties();
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->ScrollBy(arbitrary_vector2d));
VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(layer->ScrollBy(gfx::Vector2d()));
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(
layer->layer_tree_impl()->DidUpdateScrollOffset(layer->element_id()));
layer->layer_tree_impl()
->property_trees()
->scroll_tree.SetScrollOffsetDeltaForTesting(layer->element_id(),
gfx::Vector2dF());
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetCurrentScrollOffset(
gfx::ScrollOffset(arbitrary_vector2d.x(), arbitrary_vector2d.y())));
VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetCurrentScrollOffset(
gfx::ScrollOffset(arbitrary_vector2d.x(), arbitrary_vector2d.y())));
// Unrelated functions, always set to new values, always set needs update.
host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
host_impl.active_tree()->set_needs_update_draw_properties();
host_impl.active_tree()->UpdateDrawProperties();
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetMasksToBounds(true);
layer->NoteLayerPropertyChanged());
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetContentsOpaque(true);
layer->NoteLayerPropertyChanged());
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(
layer->SetBackgroundColor(arbitrary_color));
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(
host_impl.active_tree()->SetOpacityMutated(layer->element_id(),
arbitrary_number));
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(
host_impl.active_tree()->SetTransformMutated(layer->element_id(),
arbitrary_transform));
VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetBounds(arbitrary_size);
layer->NoteLayerPropertyChanged());
// Unrelated functions, set to the same values, no needs update.
layer->test_properties()->filters = arbitrary_filters;
host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(
host_impl.active_tree()->SetFilterMutated(layer->element_id(),
arbitrary_filters));
VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetMasksToBounds(true));
VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetContentsOpaque(true));
VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetDrawsContent(true));
VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(
layer->SetBackgroundColor(arbitrary_color));
VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetBounds(arbitrary_size));
VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetElementId(ElementId(2)));
}
TEST(LayerImplTest, SafeOpaqueBackgroundColor) {
FakeImplTaskRunnerProvider task_runner_provider;
TestTaskGraphRunner task_graph_runner;
std::unique_ptr<LayerTreeFrameSink> layer_tree_frame_sink =
FakeLayerTreeFrameSink::Create3d();
FakeLayerTreeHostImpl host_impl(&task_runner_provider, &task_graph_runner);
host_impl.SetVisible(true);
EXPECT_TRUE(host_impl.InitializeFrameSink(layer_tree_frame_sink.get()));
host_impl.active_tree()->SetRootLayerForTesting(
LayerImpl::Create(host_impl.active_tree(), 1));
LayerImpl* layer = host_impl.active_tree()->root_layer_for_testing();
for (int contents_opaque = 0; contents_opaque < 2; ++contents_opaque) {
for (int layer_opaque = 0; layer_opaque < 2; ++layer_opaque) {
for (int host_opaque = 0; host_opaque < 2; ++host_opaque) {
layer->SetContentsOpaque(!!contents_opaque);
layer->SetBackgroundColor(layer_opaque ? SK_ColorRED
: SK_ColorTRANSPARENT);
host_impl.active_tree()->set_background_color(
host_opaque ? SK_ColorRED : SK_ColorTRANSPARENT);
host_impl.active_tree()->property_trees()->needs_rebuild = true;
host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
SkColor safe_color = layer->SafeOpaqueBackgroundColor();
if (contents_opaque) {
EXPECT_EQ(SkColorGetA(safe_color), 255u)
<< "Flags: " << contents_opaque << ", " << layer_opaque << ", "
<< host_opaque << "\n";
} else {
EXPECT_NE(SkColorGetA(safe_color), 255u)
<< "Flags: " << contents_opaque << ", " << layer_opaque << ", "
<< host_opaque << "\n";
}
}
}
}
}
TEST(LayerImplTest, PerspectiveTransformHasReasonableScale) {
FakeImplTaskRunnerProvider task_runner_provider;
TestTaskGraphRunner task_graph_runner;
std::unique_ptr<LayerTreeFrameSink> layer_tree_frame_sink =
FakeLayerTreeFrameSink::Create3d();
LayerTreeSettings settings;
FakeLayerTreeHostImpl host_impl(settings, &task_runner_provider,
&task_graph_runner);
auto owned_layer = LayerImpl::Create(host_impl.active_tree(), 1);
LayerImpl* layer = owned_layer.get();
layer->SetBounds(gfx::Size(10, 10));
layer->set_contributes_to_drawn_render_surface(true);
host_impl.active_tree()->SetRootLayerForTesting(std::move(owned_layer));
host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
// Ensure that we are close to the maximum scale for the matrix.
{
gfx::Transform transform;
transform.Scale(10.2f, 15.1f);
transform.ApplyPerspectiveDepth(10);
layer->draw_properties().screen_space_transform = transform;
ASSERT_TRUE(layer->ScreenSpaceTransform().HasPerspective());
EXPECT_FLOAT_EQ(15.f, layer->GetIdealContentsScale());
}
// Ensure that we don't fall below the device scale factor.
{
gfx::Transform transform;
transform.Scale(0.1f, 0.2f);
transform.ApplyPerspectiveDepth(10);
layer->draw_properties().screen_space_transform = transform;
ASSERT_TRUE(layer->ScreenSpaceTransform().HasPerspective());
EXPECT_FLOAT_EQ(1.f, layer->GetIdealContentsScale());
}
// Ensure that large scales don't end up extremely large.
{
gfx::Transform transform;
transform.Scale(10000.1f, 10000.2f);
transform.ApplyPerspectiveDepth(10);
layer->draw_properties().screen_space_transform = transform;
ASSERT_TRUE(layer->ScreenSpaceTransform().HasPerspective());
EXPECT_FLOAT_EQ(127.f, layer->GetIdealContentsScale());
}
// Test case from crbug.com/766021.
{
gfx::Transform transform(-0.9397f, -0.7019f, 0.2796f, 2383.4521f, // row 1
-0.0038f, 0.0785f, 1.0613f, 1876.4553f, // row 2
-0.0835f, 0.9081f, -0.4105f, -2208.3035f, // row 3
0.0001f, -0.0008f, 0.0003f, 2.8435f); // row 4
layer->draw_properties().screen_space_transform = transform;
ASSERT_TRUE(layer->ScreenSpaceTransform().HasPerspective());
EXPECT_FLOAT_EQ(1.f, layer->GetIdealContentsScale());
}
}
class LayerImplScrollTest : public testing::Test {
public:
LayerImplScrollTest() : LayerImplScrollTest(LayerTreeSettings()) {}
explicit LayerImplScrollTest(const LayerTreeSettings& settings)
: host_impl_(settings, &task_runner_provider_, &task_graph_runner_),
root_id_(7) {
host_impl_.active_tree()->SetRootLayerForTesting(
LayerImpl::Create(host_impl_.active_tree(), root_id_));
host_impl_.active_tree()
->root_layer_for_testing()
->test_properties()
->AddChild(LayerImpl::Create(host_impl_.active_tree(), root_id_ + 1));
// Set the max scroll offset by noting that the root layer has bounds (1,1),
// thus whatever bounds are set for the layer will be the max scroll
// offset plus 1 in each direction.
host_impl_.active_tree()->root_layer_for_testing()->SetBounds(
gfx::Size(1, 1));
layer()->SetScrollable(gfx::Size(1, 1));
gfx::Vector2d max_scroll_offset(51, 81);
layer()->SetBounds(gfx::Size(max_scroll_offset.x(), max_scroll_offset.y()));
host_impl_.active_tree()->BuildLayerListAndPropertyTreesForTesting();
}
LayerImpl* layer() {
return host_impl_.active_tree()
->root_layer_for_testing()
->test_properties()
->children[0];
}
ScrollTree* scroll_tree(LayerImpl* layer_impl) {
return &layer_impl->layer_tree_impl()->property_trees()->scroll_tree;
}
LayerTreeHostImpl& host_impl() { return host_impl_; }
LayerTreeImpl* tree() { return host_impl_.active_tree(); }
private:
FakeImplTaskRunnerProvider task_runner_provider_;
TestTaskGraphRunner task_graph_runner_;
FakeLayerTreeHostImpl host_impl_;
int root_id_;
};
class CommitToPendingTreeLayerImplScrollTest : public LayerImplScrollTest {
public:
CommitToPendingTreeLayerImplScrollTest() : LayerImplScrollTest(settings()) {}
LayerTreeSettings settings() {
LayerTreeSettings tree_settings;
tree_settings.commit_to_active_tree = false;
return tree_settings;
}
};
TEST_F(LayerImplScrollTest, ScrollByWithZeroOffset) {
// Test that LayerImpl::ScrollBy only affects ScrollDelta and total scroll
// offset is bounded by the range [0, max scroll offset].
EXPECT_VECTOR_EQ(gfx::Vector2dF(), layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(gfx::Vector2dF(),
scroll_tree(layer())->GetScrollOffsetBaseForTesting(
layer()->element_id()));
EXPECT_VECTOR_EQ(gfx::Vector2dF(), ScrollDelta(layer()));
layer()->ScrollBy(gfx::Vector2dF(-100, 100));
EXPECT_VECTOR_EQ(gfx::Vector2dF(0, 80), layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(ScrollDelta(layer()), layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(gfx::Vector2dF(),
scroll_tree(layer())->GetScrollOffsetBaseForTesting(
layer()->element_id()));
layer()->ScrollBy(gfx::Vector2dF(100, -100));
EXPECT_VECTOR_EQ(gfx::Vector2dF(50, 0), layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(ScrollDelta(layer()), layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(gfx::Vector2dF(),
scroll_tree(layer())->GetScrollOffsetBaseForTesting(
layer()->element_id()));
}
TEST_F(LayerImplScrollTest, ScrollByWithNonZeroOffset) {
gfx::ScrollOffset scroll_offset(10, 5);
scroll_tree(layer())->UpdateScrollOffsetBaseForTesting(layer()->element_id(),
scroll_offset);
EXPECT_VECTOR_EQ(scroll_offset, layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(scroll_offset,
scroll_tree(layer())->GetScrollOffsetBaseForTesting(
layer()->element_id()));
EXPECT_VECTOR_EQ(gfx::Vector2dF(), ScrollDelta(layer()));
layer()->ScrollBy(gfx::Vector2dF(-100, 100));
EXPECT_VECTOR_EQ(gfx::Vector2dF(0, 80), layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(
gfx::ScrollOffsetWithDelta(scroll_offset, ScrollDelta(layer())),
layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(scroll_offset,
scroll_tree(layer())->GetScrollOffsetBaseForTesting(
layer()->element_id()));
layer()->ScrollBy(gfx::Vector2dF(100, -100));
EXPECT_VECTOR_EQ(gfx::Vector2dF(50, 0), layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(
gfx::ScrollOffsetWithDelta(scroll_offset, ScrollDelta(layer())),
layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(scroll_offset,
scroll_tree(layer())->GetScrollOffsetBaseForTesting(
layer()->element_id()));
}
TEST_F(LayerImplScrollTest, ApplySentScrollsNoListener) {
gfx::ScrollOffset scroll_offset(10, 5);
gfx::Vector2dF scroll_delta(20.5f, 8.5f);
gfx::Vector2d sent_scroll_delta(12, -3);
scroll_tree(layer())->UpdateScrollOffsetBaseForTesting(layer()->element_id(),
scroll_offset);
layer()->ScrollBy(sent_scroll_delta);
scroll_tree(layer())->CollectScrollDeltasForTesting();
layer()->SetCurrentScrollOffset(scroll_offset +
gfx::ScrollOffset(scroll_delta));
EXPECT_VECTOR_EQ(gfx::ScrollOffsetWithDelta(scroll_offset, scroll_delta),
layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(scroll_delta, ScrollDelta(layer()));
EXPECT_VECTOR_EQ(scroll_offset,
scroll_tree(layer())->GetScrollOffsetBaseForTesting(
layer()->element_id()));
scroll_tree(layer())->ApplySentScrollDeltasFromAbortedCommit();
EXPECT_VECTOR_EQ(gfx::ScrollOffsetWithDelta(scroll_offset, scroll_delta),
layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(scroll_delta - sent_scroll_delta, ScrollDelta(layer()));
EXPECT_VECTOR_EQ(gfx::ScrollOffsetWithDelta(scroll_offset, sent_scroll_delta),
scroll_tree(layer())->GetScrollOffsetBaseForTesting(
layer()->element_id()));
}
TEST_F(LayerImplScrollTest, ScrollUserUnscrollableLayer) {
gfx::ScrollOffset scroll_offset(10, 5);
gfx::Vector2dF scroll_delta(20.5f, 8.5f);
layer()->test_properties()->user_scrollable_vertical = false;
layer()->layer_tree_impl()->property_trees()->needs_rebuild = true;
layer()->layer_tree_impl()->BuildLayerListAndPropertyTreesForTesting();
scroll_tree(layer())->UpdateScrollOffsetBaseForTesting(layer()->element_id(),
scroll_offset);
gfx::Vector2dF unscrolled = layer()->ScrollBy(scroll_delta);
EXPECT_VECTOR_EQ(gfx::Vector2dF(0, 8.5f), unscrolled);
EXPECT_VECTOR_EQ(gfx::Vector2dF(30.5f, 5), layer()->CurrentScrollOffset());
}
TEST_F(CommitToPendingTreeLayerImplScrollTest,
PushPropertiesToMirrorsCurrentScrollOffset) {
gfx::ScrollOffset scroll_offset(10, 5);
gfx::Vector2dF scroll_delta(12, 18);
host_impl().CreatePendingTree();
scroll_tree(layer())->UpdateScrollOffsetBaseForTesting(layer()->element_id(),
scroll_offset);
gfx::Vector2dF unscrolled = layer()->ScrollBy(scroll_delta);
EXPECT_VECTOR_EQ(gfx::Vector2dF(0, 0), unscrolled);
EXPECT_VECTOR_EQ(gfx::Vector2dF(22, 23), layer()->CurrentScrollOffset());
scroll_tree(layer())->CollectScrollDeltasForTesting();
std::unique_ptr<LayerImpl> pending_layer =
LayerImpl::Create(host_impl().sync_tree(), layer()->id());
pending_layer->SetElementId(
LayerIdToElementIdForTesting(pending_layer->id()));
scroll_tree(pending_layer.get())
->UpdateScrollOffsetBaseForTesting(pending_layer->element_id(),
layer()->CurrentScrollOffset());
pending_layer->PushPropertiesTo(layer());
EXPECT_VECTOR_EQ(gfx::Vector2dF(22, 23), layer()->CurrentScrollOffset());
EXPECT_VECTOR_EQ(layer()->CurrentScrollOffset(),
pending_layer->CurrentScrollOffset());
}
} // namespace
} // namespace cc