blob: 14c6135aeb36a2e335c403ee4a59a0aacf5d3c62 [file] [log] [blame]
// Copyright 2014 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_impl.h"
#include "cc/layers/heads_up_display_layer_impl.h"
#include "cc/layers/layer.h"
#include "cc/layers/solid_color_scrollbar_layer_impl.h"
#include "cc/test/fake_impl_task_runner_provider.h"
#include "cc/test/fake_layer_tree_host_impl.h"
#include "cc/test/fake_output_surface.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/test/layer_tree_host_common_test.h"
#include "cc/test/test_shared_bitmap_manager.h"
#include "cc/test/test_task_graph_runner.h"
#include "cc/trees/layer_tree_host_impl.h"
#include "ui/gfx/geometry/size_conversions.h"
namespace cc {
namespace {
class LayerTreeImplTest : public LayerTreeHostCommonTest {
public:
LayerTreeImplTest() : output_surface_(FakeOutputSurface::Create3d()) {
LayerTreeSettings settings;
settings.layer_transforms_should_scale_layer_contents = true;
settings.verify_property_trees = true;
host_impl_.reset(new FakeLayerTreeHostImpl(settings, &task_runner_provider_,
&shared_bitmap_manager_,
&task_graph_runner_));
host_impl_->SetVisible(true);
EXPECT_TRUE(host_impl_->InitializeRenderer(output_surface_.get()));
}
FakeLayerTreeHostImpl& host_impl() { return *host_impl_; }
LayerImpl* root_layer() { return host_impl_->active_tree()->root_layer(); }
int HitTestSimpleTree(int root_id,
int left_child_id,
int right_child_id,
int root_sorting_context,
int left_child_sorting_context,
int right_child_sorting_context,
float root_depth,
float left_child_depth,
float right_child_depth);
const LayerImplList& RenderSurfaceLayerList() const {
return host_impl_->active_tree()->RenderSurfaceLayerList();
}
private:
TestSharedBitmapManager shared_bitmap_manager_;
TestTaskGraphRunner task_graph_runner_;
FakeImplTaskRunnerProvider task_runner_provider_;
scoped_ptr<OutputSurface> output_surface_;
scoped_ptr<FakeLayerTreeHostImpl> host_impl_;
};
TEST_F(LayerTreeImplTest, HitTestingForSingleLayer) {
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), 12345);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetDrawsContent(true);
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
// Hit testing for a point outside the layer should return a null pointer.
gfx::PointF test_point(101.f, 101.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(-1.f, -1.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the root layer.
test_point = gfx::PointF(1.f, 1.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::PointF(99.f, 99.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeImplTest, UpdateViewportAndHitTest) {
// Ensures that the viewport rect is correctly updated by the clip tree.
TestSharedBitmapManager shared_bitmap_manager;
TestTaskGraphRunner task_graph_runner;
FakeImplTaskRunnerProvider task_runner_provider;
LayerTreeSettings settings;
settings.verify_property_trees = true;
scoped_ptr<OutputSurface> output_surface = FakeOutputSurface::Create3d();
scoped_ptr<FakeLayerTreeHostImpl> host_impl;
host_impl.reset(new FakeLayerTreeHostImpl(settings, &task_runner_provider,
&shared_bitmap_manager,
&task_graph_runner));
host_impl->SetVisible(true);
EXPECT_TRUE(host_impl->InitializeRenderer(output_surface.get()));
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl->active_tree(), 12345);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetDrawsContent(true);
host_impl->SetViewportSize(root->bounds());
host_impl->active_tree()->SetRootLayer(root.Pass());
host_impl->UpdateNumChildrenAndDrawPropertiesForActiveTree();
EXPECT_EQ(
gfx::RectF(gfx::SizeF(bounds)),
host_impl->active_tree()->property_trees()->clip_tree.ViewportClip());
EXPECT_EQ(gfx::Rect(bounds),
host_impl->RootLayer()->visible_rect_from_property_trees());
gfx::Size new_bounds(50, 50);
host_impl->SetViewportSize(new_bounds);
gfx::PointF test_point(51.f, 51.f);
host_impl->active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_EQ(
gfx::RectF(gfx::SizeF(new_bounds)),
host_impl->active_tree()->property_trees()->clip_tree.ViewportClip());
EXPECT_EQ(gfx::Rect(new_bounds),
host_impl->RootLayer()->visible_rect_from_property_trees());
}
TEST_F(LayerTreeImplTest, HitTestingForSingleLayerAndHud) {
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), 12345);
scoped_ptr<HeadsUpDisplayLayerImpl> hud =
HeadsUpDisplayLayerImpl::Create(host_impl().active_tree(), 11111);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetDrawsContent(true);
// Create hud and add it as a child of root.
gfx::Size hud_bounds(200, 200);
SetLayerPropertiesForTesting(hud.get(), identity_matrix, transform_origin,
position, hud_bounds, true, false, false);
hud->SetDrawsContent(true);
host_impl().active_tree()->set_hud_layer(hud.get());
root->AddChild(hud.Pass());
host_impl().SetViewportSize(hud_bounds);
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(2u, root_layer()->render_surface()->layer_list().size());
// Hit testing for a point inside HUD, but outside root should return null
gfx::PointF test_point(101.f, 101.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(-1.f, -1.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the root layer, never the HUD
// layer.
test_point = gfx::PointF(1.f, 1.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::PointF(99.f, 99.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeImplTest, HitTestingForUninvertibleTransform) {
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), 12345);
gfx::Transform uninvertible_transform;
uninvertible_transform.matrix().set(0, 0, 0.0);
uninvertible_transform.matrix().set(1, 1, 0.0);
uninvertible_transform.matrix().set(2, 2, 0.0);
uninvertible_transform.matrix().set(3, 3, 0.0);
ASSERT_FALSE(uninvertible_transform.IsInvertible());
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), uninvertible_transform,
transform_origin, position, bounds, true, false,
true);
root->SetDrawsContent(true);
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
ASSERT_FALSE(root_layer()->screen_space_transform().IsInvertible());
// Hit testing any point should not hit the layer. If the invertible matrix is
// accidentally ignored and treated like an identity, then the hit testing
// will incorrectly hit the layer when it shouldn't.
gfx::PointF test_point(1.f, 1.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(10.f, 10.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(10.f, 30.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(50.f, 50.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(67.f, 48.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(99.f, 99.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(-1.f, -1.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
}
TEST_F(LayerTreeImplTest, HitTestingForSinglePositionedLayer) {
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), 12345);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
// this layer is positioned, and hit testing should correctly know where the
// layer is located.
gfx::PointF position(50.f, 50.f);
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetDrawsContent(true);
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
// Hit testing for a point outside the layer should return a null pointer.
gfx::PointF test_point(49.f, 49.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
// Even though the layer exists at (101, 101), it should not be visible there
// since the root render surface would clamp it.
test_point = gfx::PointF(101.f, 101.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the root layer.
test_point = gfx::PointF(51.f, 51.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::PointF(99.f, 99.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeImplTest, HitTestingForSingleRotatedLayer) {
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), 12345);
gfx::Transform identity_matrix;
gfx::Transform rotation45_degrees_about_center;
rotation45_degrees_about_center.Translate(50.0, 50.0);
rotation45_degrees_about_center.RotateAboutZAxis(45.0);
rotation45_degrees_about_center.Translate(-50.0, -50.0);
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), rotation45_degrees_about_center,
transform_origin, position, bounds, true, false,
true);
root->SetDrawsContent(true);
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
// Hit testing for points outside the layer.
// These corners would have been inside the un-transformed layer, but they
// should not hit the correctly transformed layer.
gfx::PointF test_point(99.f, 99.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(1.f, 1.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the root layer.
test_point = gfx::PointF(1.f, 50.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
// Hit testing the corners that would overlap the unclipped layer, but are
// outside the clipped region.
test_point = gfx::PointF(50.f, -1.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_FALSE(result_layer);
test_point = gfx::PointF(-1.f, 50.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_FALSE(result_layer);
}
TEST_F(LayerTreeImplTest, HitTestingForSinglePerspectiveLayer) {
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), 12345);
gfx::Transform identity_matrix;
// perspective_projection_about_center * translation_by_z is designed so that
// the 100 x 100 layer becomes 50 x 50, and remains centered at (50, 50).
gfx::Transform perspective_projection_about_center;
perspective_projection_about_center.Translate(50.0, 50.0);
perspective_projection_about_center.ApplyPerspectiveDepth(1.0);
perspective_projection_about_center.Translate(-50.0, -50.0);
gfx::Transform translation_by_z;
translation_by_z.Translate3d(0.0, 0.0, -1.0);
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(
root.get(), perspective_projection_about_center * translation_by_z,
transform_origin, position, bounds, true, false, true);
root->SetDrawsContent(true);
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
// Hit testing for points outside the layer.
// These corners would have been inside the un-transformed layer, but they
// should not hit the correctly transformed layer.
gfx::PointF test_point(24.f, 24.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(76.f, 76.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the root layer.
test_point = gfx::PointF(26.f, 26.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::PointF(74.f, 74.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeImplTest, HitTestingForSimpleClippedLayer) {
// Test that hit-testing will only work for the visible portion of a layer,
// and not the entire layer bounds. Here we just test the simple axis-aligned
// case.
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
{
scoped_ptr<LayerImpl> clipping_layer =
LayerImpl::Create(host_impl().active_tree(), 123);
// this layer is positioned, and hit testing should correctly know where the
// layer is located.
gfx::PointF position(25.f, 25.f);
gfx::Size bounds(50, 50);
SetLayerPropertiesForTesting(clipping_layer.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
clipping_layer->SetMasksToBounds(true);
scoped_ptr<LayerImpl> child =
LayerImpl::Create(host_impl().active_tree(), 456);
position = gfx::PointF(-50.f, -50.f);
bounds = gfx::Size(300, 300);
SetLayerPropertiesForTesting(child.get(), identity_matrix, transform_origin,
position, bounds, true, false, false);
child->SetDrawsContent(true);
clipping_layer->AddChild(child.Pass());
root->AddChild(clipping_layer.Pass());
}
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
ASSERT_EQ(456, root_layer()->render_surface()->layer_list().at(0)->id());
// Hit testing for a point outside the layer should return a null pointer.
// Despite the child layer being very large, it should be clipped to the root
// layer's bounds.
gfx::PointF test_point(24.f, 24.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
// Even though the layer exists at (101, 101), it should not be visible there
// since the clipping_layer would clamp it.
test_point = gfx::PointF(76.f, 76.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the child layer.
test_point = gfx::PointF(26.f, 26.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(456, result_layer->id());
test_point = gfx::PointF(74.f, 74.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(456, result_layer->id());
}
TEST_F(LayerTreeImplTest, HitTestingForMultiClippedRotatedLayer) {
// This test checks whether hit testing correctly avoids hit testing with
// multiple ancestors that clip in non axis-aligned ways. To pass this test,
// the hit testing algorithm needs to recognize that multiple parent layers
// may clip the layer, and should not actually hit those clipped areas.
//
// The child and grand_child layers are both initialized to clip the
// rotated_leaf. The child layer is rotated about the top-left corner, so that
// the root + child clips combined create a triangle. The rotated_leaf will
// only be visible where it overlaps this triangle.
//
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), 123);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetMasksToBounds(true);
{
scoped_ptr<LayerImpl> child =
LayerImpl::Create(host_impl().active_tree(), 456);
scoped_ptr<LayerImpl> grand_child =
LayerImpl::Create(host_impl().active_tree(), 789);
scoped_ptr<LayerImpl> rotated_leaf =
LayerImpl::Create(host_impl().active_tree(), 2468);
position = gfx::PointF(10.f, 10.f);
bounds = gfx::Size(80, 80);
SetLayerPropertiesForTesting(child.get(), identity_matrix, transform_origin,
position, bounds, true, false, false);
child->SetMasksToBounds(true);
gfx::Transform rotation45_degrees_about_corner;
rotation45_degrees_about_corner.RotateAboutZAxis(45.0);
// remember, positioned with respect to its parent which is already at 10,
// 10
position = gfx::PointF();
bounds =
gfx::Size(200, 200); // to ensure it covers at least sqrt(2) * 100.
SetLayerPropertiesForTesting(
grand_child.get(), rotation45_degrees_about_corner, transform_origin,
position, bounds, true, false, false);
grand_child->SetMasksToBounds(true);
// Rotates about the center of the layer
gfx::Transform rotated_leaf_transform;
rotated_leaf_transform.Translate(
-10.0, -10.0); // cancel out the grand_parent's position
rotated_leaf_transform.RotateAboutZAxis(
-45.0); // cancel out the corner 45-degree rotation of the parent.
rotated_leaf_transform.Translate(50.0, 50.0);
rotated_leaf_transform.RotateAboutZAxis(45.0);
rotated_leaf_transform.Translate(-50.0, -50.0);
position = gfx::PointF();
bounds = gfx::Size(100, 100);
SetLayerPropertiesForTesting(rotated_leaf.get(), rotated_leaf_transform,
transform_origin, position, bounds, true,
false, false);
rotated_leaf->SetDrawsContent(true);
grand_child->AddChild(rotated_leaf.Pass());
child->AddChild(grand_child.Pass());
root->AddChild(child.Pass());
}
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// (11, 89) is close to the the bottom left corner within the clip, but it is
// not inside the layer.
gfx::PointF test_point(11.f, 89.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
// Closer inwards from the bottom left will overlap the layer.
test_point = gfx::PointF(25.f, 75.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(2468, result_layer->id());
// (4, 50) is inside the unclipped layer, but that corner of the layer should
// be clipped away by the grandparent and should not get hit. If hit testing
// blindly uses visible content rect without considering how parent may clip
// the layer, then hit testing would accidentally think that the point
// successfully hits the layer.
test_point = gfx::PointF(4.f, 50.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
// (11, 50) is inside the layer and within the clipped area.
test_point = gfx::PointF(11.f, 50.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(2468, result_layer->id());
// Around the middle, just to the right and up, would have hit the layer
// except that that area should be clipped away by the parent.
test_point = gfx::PointF(51.f, 49.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
// Around the middle, just to the left and down, should successfully hit the
// layer.
test_point = gfx::PointF(49.f, 51.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(2468, result_layer->id());
}
TEST_F(LayerTreeImplTest, HitTestingForNonClippingIntermediateLayer) {
// This test checks that hit testing code does not accidentally clip to layer
// bounds for a layer that actually does not clip.
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
{
scoped_ptr<LayerImpl> intermediate_layer =
LayerImpl::Create(host_impl().active_tree(), 123);
// this layer is positioned, and hit testing should correctly know where the
// layer is located.
gfx::PointF position(10.f, 10.f);
gfx::Size bounds(50, 50);
SetLayerPropertiesForTesting(intermediate_layer.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
// Sanity check the intermediate layer should not clip.
ASSERT_FALSE(intermediate_layer->masks_to_bounds());
ASSERT_FALSE(intermediate_layer->mask_layer());
// The child of the intermediate_layer is translated so that it does not
// overlap intermediate_layer at all. If child is incorrectly clipped, we
// would not be able to hit it successfully.
scoped_ptr<LayerImpl> child =
LayerImpl::Create(host_impl().active_tree(), 456);
position = gfx::PointF(60.f, 60.f); // 70, 70 in screen space
bounds = gfx::Size(20, 20);
SetLayerPropertiesForTesting(child.get(), identity_matrix, transform_origin,
position, bounds, true, false, false);
child->SetDrawsContent(true);
intermediate_layer->AddChild(child.Pass());
root->AddChild(intermediate_layer.Pass());
}
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
ASSERT_EQ(456, root_layer()->render_surface()->layer_list().at(0)->id());
// Hit testing for a point outside the layer should return a null pointer.
gfx::PointF test_point(69.f, 69.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(91.f, 91.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the child layer.
test_point = gfx::PointF(71.f, 71.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(456, result_layer->id());
test_point = gfx::PointF(89.f, 89.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(456, result_layer->id());
}
TEST_F(LayerTreeImplTest, HitTestingForMultipleLayers) {
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetDrawsContent(true);
{
// child 1 and child2 are initialized to overlap between x=50 and x=60.
// grand_child is set to overlap both child1 and child2 between y=50 and
// y=60. The expected stacking order is: (front) child2, (second)
// grand_child, (third) child1, and (back) the root layer behind all other
// layers.
scoped_ptr<LayerImpl> child1 =
LayerImpl::Create(host_impl().active_tree(), 2);
scoped_ptr<LayerImpl> child2 =
LayerImpl::Create(host_impl().active_tree(), 3);
scoped_ptr<LayerImpl> grand_child1 =
LayerImpl::Create(host_impl().active_tree(), 4);
position = gfx::PointF(10.f, 10.f);
bounds = gfx::Size(50, 50);
SetLayerPropertiesForTesting(child1.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
child1->SetDrawsContent(true);
position = gfx::PointF(50.f, 10.f);
bounds = gfx::Size(50, 50);
SetLayerPropertiesForTesting(child2.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
child2->SetDrawsContent(true);
// Remember that grand_child is positioned with respect to its parent (i.e.
// child1). In screen space, the intended position is (10, 50), with size
// 100 x 50.
position = gfx::PointF(0.f, 40.f);
bounds = gfx::Size(100, 50);
SetLayerPropertiesForTesting(grand_child1.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
grand_child1->SetDrawsContent(true);
child1->AddChild(grand_child1.Pass());
root->AddChild(child1.Pass());
root->AddChild(child2.Pass());
}
LayerImpl* child1 = root->children()[0];
LayerImpl* child2 = root->children()[1];
LayerImpl* grand_child1 = child1->children()[0];
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_TRUE(child1);
ASSERT_TRUE(child2);
ASSERT_TRUE(grand_child1);
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
RenderSurfaceImpl* root_render_surface = root_layer()->render_surface();
ASSERT_EQ(4u, root_render_surface->layer_list().size());
ASSERT_EQ(1, root_render_surface->layer_list().at(0)->id()); // root layer
ASSERT_EQ(2, root_render_surface->layer_list().at(1)->id()); // child1
ASSERT_EQ(4, root_render_surface->layer_list().at(2)->id()); // grand_child1
ASSERT_EQ(3, root_render_surface->layer_list().at(3)->id()); // child2
// Nothing overlaps the root_layer at (1, 1), so hit testing there should find
// the root layer.
gfx::PointF test_point = gfx::PointF(1.f, 1.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(1, result_layer->id());
// At (15, 15), child1 and root are the only layers. child1 is expected to be
// on top.
test_point = gfx::PointF(15.f, 15.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(2, result_layer->id());
// At (51, 20), child1 and child2 overlap. child2 is expected to be on top.
test_point = gfx::PointF(51.f, 20.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (80, 51), child2 and grand_child1 overlap. child2 is expected to be on
// top.
test_point = gfx::PointF(80.f, 51.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (51, 51), all layers overlap each other. child2 is expected to be on top
// of all other layers.
test_point = gfx::PointF(51.f, 51.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (20, 51), child1 and grand_child1 overlap. grand_child1 is expected to
// be on top.
test_point = gfx::PointF(20.f, 51.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(4, result_layer->id());
}
int LayerTreeImplTest::HitTestSimpleTree(int root_id,
int left_child_id,
int right_child_id,
int root_sorting_context,
int left_child_sorting_context,
int right_child_sorting_context,
float root_depth,
float left_child_depth,
float right_child_depth) {
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), root_id);
scoped_ptr<LayerImpl> left_child =
LayerImpl::Create(host_impl().active_tree(), left_child_id);
scoped_ptr<LayerImpl> right_child =
LayerImpl::Create(host_impl().active_tree(), right_child_id);
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
{
gfx::Transform translate_z;
translate_z.Translate3d(0, 0, root_depth);
SetLayerPropertiesForTesting(root.get(), translate_z, transform_origin,
position, bounds, false, false, true);
root->SetDrawsContent(true);
root->Set3dSortingContextId(root_sorting_context);
}
{
gfx::Transform translate_z;
translate_z.Translate3d(0, 0, left_child_depth);
SetLayerPropertiesForTesting(left_child.get(), translate_z,
transform_origin, position, bounds, false,
false, false);
left_child->SetDrawsContent(true);
left_child->Set3dSortingContextId(left_child_sorting_context);
}
{
gfx::Transform translate_z;
translate_z.Translate3d(0, 0, right_child_depth);
SetLayerPropertiesForTesting(right_child.get(), translate_z,
transform_origin, position, bounds, false,
false, false);
right_child->SetDrawsContent(true);
right_child->Set3dSortingContextId(right_child_sorting_context);
}
root->AddChild(left_child.Pass());
root->AddChild(right_child.Pass());
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
CHECK_EQ(1u, RenderSurfaceLayerList().size());
gfx::PointF test_point = gfx::PointF(1.f, 1.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
CHECK(result_layer);
return result_layer->id();
}
TEST_F(LayerTreeImplTest, HitTestingSameSortingContextTied) {
int hit_layer_id = HitTestSimpleTree(/* ids */ 1, 2, 3,
/* sorting_contexts */ 10, 10, 10,
/* depths */ 0, 0, 0);
// 3 is the last in tree order, and so should be on top.
EXPECT_EQ(3, hit_layer_id);
}
TEST_F(LayerTreeImplTest, HitTestingSameSortingContextChildWins) {
int hit_layer_id = HitTestSimpleTree(/* ids */ 1, 2, 3,
/* sorting_contexts */ 10, 10, 10,
/* depths */ 0, 1, 0);
EXPECT_EQ(2, hit_layer_id);
}
TEST_F(LayerTreeImplTest, HitTestingWithoutSortingContext) {
int hit_layer_id = HitTestSimpleTree(/* ids */ 1, 2, 3,
/* sorting_contexts */ 0, 0, 0,
/* depths */ 0, 1, 0);
EXPECT_EQ(3, hit_layer_id);
}
TEST_F(LayerTreeImplTest, HitTestingDistinctSortingContext) {
int hit_layer_id = HitTestSimpleTree(/* ids */ 1, 2, 3,
/* sorting_contexts */ 10, 11, 12,
/* depths */ 0, 1, 0);
EXPECT_EQ(3, hit_layer_id);
}
TEST_F(LayerTreeImplTest, HitTestingSameSortingContextParentWins) {
int hit_layer_id = HitTestSimpleTree(/* ids */ 1, 2, 3,
/* sorting_contexts */ 10, 10, 10,
/* depths */ 0, -1, -1);
EXPECT_EQ(1, hit_layer_id);
}
TEST_F(LayerTreeImplTest, HitTestingForMultipleLayersAtVaryingDepths) {
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetDrawsContent(true);
root->SetShouldFlattenTransform(false);
root->Set3dSortingContextId(1);
{
// child 1 and child2 are initialized to overlap between x=50 and x=60.
// grand_child is set to overlap both child1 and child2 between y=50 and
// y=60. The expected stacking order is: (front) child2, (second)
// grand_child, (third) child1, and (back) the root layer behind all other
// layers.
scoped_ptr<LayerImpl> child1 =
LayerImpl::Create(host_impl().active_tree(), 2);
scoped_ptr<LayerImpl> child2 =
LayerImpl::Create(host_impl().active_tree(), 3);
scoped_ptr<LayerImpl> grand_child1 =
LayerImpl::Create(host_impl().active_tree(), 4);
position = gfx::PointF(10.f, 10.f);
bounds = gfx::Size(50, 50);
SetLayerPropertiesForTesting(child1.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
child1->SetDrawsContent(true);
child1->SetShouldFlattenTransform(false);
child1->Set3dSortingContextId(1);
position = gfx::PointF(50.f, 10.f);
bounds = gfx::Size(50, 50);
gfx::Transform translate_z;
translate_z.Translate3d(0, 0, 10.f);
SetLayerPropertiesForTesting(child2.get(), translate_z, transform_origin,
position, bounds, true, false, false);
child2->SetDrawsContent(true);
child2->SetShouldFlattenTransform(false);
child2->Set3dSortingContextId(1);
// Remember that grand_child is positioned with respect to its parent (i.e.
// child1). In screen space, the intended position is (10, 50), with size
// 100 x 50.
position = gfx::PointF(0.f, 40.f);
bounds = gfx::Size(100, 50);
SetLayerPropertiesForTesting(grand_child1.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
grand_child1->SetDrawsContent(true);
grand_child1->SetShouldFlattenTransform(false);
child1->AddChild(grand_child1.Pass());
root->AddChild(child1.Pass());
root->AddChild(child2.Pass());
}
LayerImpl* child1 = root->children()[0];
LayerImpl* child2 = root->children()[1];
LayerImpl* grand_child1 = child1->children()[0];
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_TRUE(child1);
ASSERT_TRUE(child2);
ASSERT_TRUE(grand_child1);
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
// Nothing overlaps the root_layer at (1, 1), so hit testing there should find
// the root layer.
gfx::PointF test_point = gfx::PointF(1.f, 1.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(1, result_layer->id());
// At (15, 15), child1 and root are the only layers. child1 is expected to be
// on top.
test_point = gfx::PointF(15.f, 15.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(2, result_layer->id());
// At (51, 20), child1 and child2 overlap. child2 is expected to be on top,
// as it was transformed to the foreground.
test_point = gfx::PointF(51.f, 20.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (80, 51), child2 and grand_child1 overlap. child2 is expected to
// be on top, as it was transformed to the foreground.
test_point = gfx::PointF(80.f, 51.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (51, 51), child1, child2 and grand_child1 overlap. child2 is expected to
// be on top, as it was transformed to the foreground.
test_point = gfx::PointF(51.f, 51.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (20, 51), child1 and grand_child1 overlap. grand_child1 is expected to
// be on top, as it descends from child1.
test_point = gfx::PointF(20.f, 51.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(4, result_layer->id());
}
TEST_F(LayerTreeImplTest, HitTestingRespectsClipParents) {
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetDrawsContent(true);
{
scoped_ptr<LayerImpl> child =
LayerImpl::Create(host_impl().active_tree(), 2);
scoped_ptr<LayerImpl> grand_child =
LayerImpl::Create(host_impl().active_tree(), 4);
position = gfx::PointF(10.f, 10.f);
bounds = gfx::Size(1, 1);
SetLayerPropertiesForTesting(child.get(), identity_matrix, transform_origin,
position, bounds, true, false, false);
child->SetDrawsContent(true);
child->SetMasksToBounds(true);
position = gfx::PointF(0.f, 40.f);
bounds = gfx::Size(100, 50);
SetLayerPropertiesForTesting(grand_child.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
grand_child->SetDrawsContent(true);
grand_child->SetHasRenderSurface(true);
// This should let |grand_child| "escape" |child|'s clip.
grand_child->SetClipParent(root.get());
child->AddChild(grand_child.Pass());
root->AddChild(child.Pass());
}
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
gfx::PointF test_point(12.f, 52.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(4, result_layer->id());
}
TEST_F(LayerTreeImplTest, HitTestingRespectsScrollParents) {
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetDrawsContent(true);
{
scoped_ptr<LayerImpl> child =
LayerImpl::Create(host_impl().active_tree(), 2);
scoped_ptr<LayerImpl> scroll_child =
LayerImpl::Create(host_impl().active_tree(), 3);
scoped_ptr<LayerImpl> grand_child =
LayerImpl::Create(host_impl().active_tree(), 4);
position = gfx::PointF(10.f, 10.f);
bounds = gfx::Size(1, 1);
SetLayerPropertiesForTesting(child.get(), identity_matrix, transform_origin,
position, bounds, true, false, false);
child->SetDrawsContent(true);
child->SetMasksToBounds(true);
position = gfx::PointF();
bounds = gfx::Size(200, 200);
SetLayerPropertiesForTesting(scroll_child.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
scroll_child->SetDrawsContent(true);
// This should cause scroll child and its descendants to be affected by
// |child|'s clip.
scroll_child->SetScrollParent(child.get());
scoped_ptr<std::set<LayerImpl*>> scroll_children(new std::set<LayerImpl*>);
scroll_children->insert(scroll_child.get());
child->SetScrollChildren(scroll_children.release());
SetLayerPropertiesForTesting(grand_child.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
grand_child->SetDrawsContent(true);
grand_child->SetHasRenderSurface(true);
scroll_child->AddChild(grand_child.Pass());
root->AddChild(scroll_child.Pass());
root->AddChild(child.Pass());
}
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
gfx::PointF test_point(12.f, 52.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
// The |test_point| should have been clipped away by |child|, the scroll
// parent, so the only thing that should be hit is |root|.
ASSERT_TRUE(result_layer);
ASSERT_EQ(1, result_layer->id());
}
TEST_F(LayerTreeImplTest, HitTestingForMultipleLayerLists) {
//
// The geometry is set up similarly to the previous case, but
// all layers are forced to be render surfaces now.
//
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetDrawsContent(true);
{
// child 1 and child2 are initialized to overlap between x=50 and x=60.
// grand_child is set to overlap both child1 and child2 between y=50 and
// y=60. The expected stacking order is: (front) child2, (second)
// grand_child, (third) child1, and (back) the root layer behind all other
// layers.
scoped_ptr<LayerImpl> child1 =
LayerImpl::Create(host_impl().active_tree(), 2);
scoped_ptr<LayerImpl> child2 =
LayerImpl::Create(host_impl().active_tree(), 3);
scoped_ptr<LayerImpl> grand_child1 =
LayerImpl::Create(host_impl().active_tree(), 4);
position = gfx::PointF(10.f, 10.f);
bounds = gfx::Size(50, 50);
SetLayerPropertiesForTesting(child1.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
child1->SetDrawsContent(true);
child1->SetHasRenderSurface(true);
position = gfx::PointF(50.f, 10.f);
bounds = gfx::Size(50, 50);
SetLayerPropertiesForTesting(child2.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
child2->SetDrawsContent(true);
child2->SetHasRenderSurface(true);
// Remember that grand_child is positioned with respect to its parent (i.e.
// child1). In screen space, the intended position is (10, 50), with size
// 100 x 50.
position = gfx::PointF(0.f, 40.f);
bounds = gfx::Size(100, 50);
SetLayerPropertiesForTesting(grand_child1.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
grand_child1->SetDrawsContent(true);
grand_child1->SetHasRenderSurface(true);
child1->AddChild(grand_child1.Pass());
root->AddChild(child1.Pass());
root->AddChild(child2.Pass());
}
LayerImpl* child1 = root->children()[0];
LayerImpl* child2 = root->children()[1];
LayerImpl* grand_child1 = child1->children()[0];
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_TRUE(child1);
ASSERT_TRUE(child2);
ASSERT_TRUE(grand_child1);
ASSERT_TRUE(child1->render_surface());
ASSERT_TRUE(child2->render_surface());
ASSERT_TRUE(grand_child1->render_surface());
ASSERT_EQ(4u, RenderSurfaceLayerList().size());
// The root surface has the root layer, and child1's and child2's render
// surfaces.
ASSERT_EQ(3u, root_layer()->render_surface()->layer_list().size());
// The child1 surface has the child1 layer and grand_child1's render surface.
ASSERT_EQ(2u, child1->render_surface()->layer_list().size());
ASSERT_EQ(1u, child2->render_surface()->layer_list().size());
ASSERT_EQ(1u, grand_child1->render_surface()->layer_list().size());
ASSERT_EQ(1, RenderSurfaceLayerList().at(0)->id()); // root layer
ASSERT_EQ(2, RenderSurfaceLayerList()[1]->id()); // child1
ASSERT_EQ(4, RenderSurfaceLayerList().at(2)->id()); // grand_child1
ASSERT_EQ(3, RenderSurfaceLayerList()[3]->id()); // child2
// Nothing overlaps the root_layer at (1, 1), so hit testing there should find
// the root layer.
gfx::PointF test_point(1.f, 1.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(1, result_layer->id());
// At (15, 15), child1 and root are the only layers. child1 is expected to be
// on top.
test_point = gfx::PointF(15.f, 15.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(2, result_layer->id());
// At (51, 20), child1 and child2 overlap. child2 is expected to be on top.
test_point = gfx::PointF(51.f, 20.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (80, 51), child2 and grand_child1 overlap. child2 is expected to be on
// top.
test_point = gfx::PointF(80.f, 51.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (51, 51), all layers overlap each other. child2 is expected to be on top
// of all other layers.
test_point = gfx::PointF(51.f, 51.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (20, 51), child1 and grand_child1 overlap. grand_child1 is expected to
// be on top.
test_point = gfx::PointF(20.f, 51.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPoint(test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(4, result_layer->id());
}
TEST_F(LayerTreeImplTest, HitCheckingTouchHandlerRegionsForSingleLayer) {
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), 12345);
gfx::Transform identity_matrix;
Region touch_handler_region(gfx::Rect(10, 10, 50, 50));
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetDrawsContent(true);
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
// Hit checking for any point should return a null pointer for a layer without
// any touch event handler regions.
gfx::PointF test_point(11.f, 11.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
host_impl().active_tree()->root_layer()->SetTouchEventHandlerRegion(
touch_handler_region);
// Hit checking for a point outside the layer should return a null pointer.
test_point = gfx::PointF(101.f, 101.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(-1.f, -1.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the layer, but outside the touch handler
// region should return a null pointer.
test_point = gfx::PointF(1.f, 1.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(99.f, 99.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the touch event handler region should
// return the root layer.
test_point = gfx::PointF(11.f, 11.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::PointF(59.f, 59.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeImplTest,
HitCheckingTouchHandlerRegionsForUninvertibleTransform) {
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), 12345);
gfx::Transform uninvertible_transform;
uninvertible_transform.matrix().set(0, 0, 0.0);
uninvertible_transform.matrix().set(1, 1, 0.0);
uninvertible_transform.matrix().set(2, 2, 0.0);
uninvertible_transform.matrix().set(3, 3, 0.0);
ASSERT_FALSE(uninvertible_transform.IsInvertible());
gfx::Transform identity_matrix;
Region touch_handler_region(gfx::Rect(10, 10, 50, 50));
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), uninvertible_transform,
transform_origin, position, bounds, true, false,
true);
root->SetDrawsContent(true);
root->SetTouchEventHandlerRegion(touch_handler_region);
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
ASSERT_FALSE(root_layer()->screen_space_transform().IsInvertible());
// Hit checking any point should not hit the touch handler region on the
// layer. If the invertible matrix is accidentally ignored and treated like an
// identity, then the hit testing will incorrectly hit the layer when it
// shouldn't.
gfx::PointF test_point(1.f, 1.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(10.f, 10.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(10.f, 30.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(50.f, 50.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(67.f, 48.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(99.f, 99.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(-1.f, -1.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
}
TEST_F(LayerTreeImplTest,
HitCheckingTouchHandlerRegionsForSinglePositionedLayer) {
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), 12345);
gfx::Transform identity_matrix;
Region touch_handler_region(gfx::Rect(10, 10, 50, 50));
gfx::Point3F transform_origin;
// this layer is positioned, and hit testing should correctly know where the
// layer is located.
gfx::PointF position(50.f, 50.f);
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetDrawsContent(true);
root->SetTouchEventHandlerRegion(touch_handler_region);
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
// Hit checking for a point outside the layer should return a null pointer.
gfx::PointF test_point(49.f, 49.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
// Even though the layer has a touch handler region containing (101, 101), it
// should not be visible there since the root render surface would clamp it.
test_point = gfx::PointF(101.f, 101.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the layer, but outside the touch handler
// region should return a null pointer.
test_point = gfx::PointF(51.f, 51.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the touch event handler region should
// return the root layer.
test_point = gfx::PointF(61.f, 61.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::PointF(99.f, 99.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeImplTest,
HitCheckingTouchHandlerRegionsForSingleLayerWithDeviceScale) {
// The layer's device_scale_factor and page_scale_factor should scale the
// content rect and we should be able to hit the touch handler region by
// scaling the points accordingly.
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
// Set the bounds of the root layer big enough to fit the child when scaled.
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
{
Region touch_handler_region(gfx::Rect(10, 10, 30, 30));
gfx::PointF position(25.f, 25.f);
gfx::Size bounds(50, 50);
scoped_ptr<LayerImpl> test_layer =
LayerImpl::Create(host_impl().active_tree(), 12345);
SetLayerPropertiesForTesting(test_layer.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
test_layer->SetDrawsContent(true);
test_layer->SetTouchEventHandlerRegion(touch_handler_region);
root->AddChild(test_layer.Pass());
}
float device_scale_factor = 3.f;
float page_scale_factor = 5.f;
float max_page_scale_factor = 10.f;
gfx::Size scaled_bounds_for_root = gfx::ScaleToCeiledSize(
root->bounds(), device_scale_factor * page_scale_factor);
host_impl().SetViewportSize(scaled_bounds_for_root);
host_impl().active_tree()->SetDeviceScaleFactor(device_scale_factor);
host_impl().active_tree()->PushPageScaleFromMainThread(
page_scale_factor, page_scale_factor, max_page_scale_factor);
host_impl().active_tree()->SetPageScaleOnActiveTree(page_scale_factor);
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().active_tree()->SetViewportLayersFromIds(Layer::INVALID_ID, 1, 1,
Layer::INVALID_ID);
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
// The visible content rect for test_layer is actually 100x100, even though
// its layout size is 50x50, positioned at 25x25.
LayerImpl* test_layer =
host_impl().active_tree()->root_layer()->children()[0];
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
// Check whether the child layer fits into the root after scaled.
EXPECT_EQ(gfx::Rect(test_layer->bounds()), test_layer->visible_layer_rect());
// Hit checking for a point outside the layer should return a null pointer
// (the root layer does not have a touch event handler, so it will not be
// tested either).
gfx::PointF test_point(76.f, 76.f);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the layer, but outside the touch handler
// region should return a null pointer.
test_point = gfx::PointF(26.f, 26.f);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(34.f, 34.f);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(65.f, 65.f);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(74.f, 74.f);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the touch event handler region should
// return the root layer.
test_point = gfx::PointF(35.f, 35.f);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::PointF(64.f, 64.f);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
// Check update of page scale factor on the active tree when page scale layer
// is also the root layer.
page_scale_factor *= 1.5f;
host_impl().active_tree()->SetPageScaleOnActiveTree(page_scale_factor);
EXPECT_EQ(host_impl().active_tree()->root_layer(),
host_impl().active_tree()->PageScaleLayer());
test_point = gfx::Point(35, 35);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::Point(64, 64);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeImplTest, HitCheckingTouchHandlerRegionsForSimpleClippedLayer) {
// Test that hit-checking will only work for the visible portion of a layer,
// and not the entire layer bounds. Here we just test the simple axis-aligned
// case.
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
{
scoped_ptr<LayerImpl> clipping_layer =
LayerImpl::Create(host_impl().active_tree(), 123);
// this layer is positioned, and hit testing should correctly know where the
// layer is located.
gfx::PointF position(25.f, 25.f);
gfx::Size bounds(50, 50);
SetLayerPropertiesForTesting(clipping_layer.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
clipping_layer->SetMasksToBounds(true);
scoped_ptr<LayerImpl> child =
LayerImpl::Create(host_impl().active_tree(), 456);
Region touch_handler_region(gfx::Rect(10, 10, 50, 50));
position = gfx::PointF(-50.f, -50.f);
bounds = gfx::Size(300, 300);
SetLayerPropertiesForTesting(child.get(), identity_matrix, transform_origin,
position, bounds, true, false, false);
child->SetDrawsContent(true);
child->SetTouchEventHandlerRegion(touch_handler_region);
clipping_layer->AddChild(child.Pass());
root->AddChild(clipping_layer.Pass());
}
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
ASSERT_EQ(456, root_layer()->render_surface()->layer_list().at(0)->id());
// Hit checking for a point outside the layer should return a null pointer.
// Despite the child layer being very large, it should be clipped to the root
// layer's bounds.
gfx::PointF test_point(24.f, 24.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the layer, but outside the touch handler
// region should return a null pointer.
test_point = gfx::PointF(35.f, 35.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
test_point = gfx::PointF(74.f, 74.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the touch event handler region should
// return the root layer.
test_point = gfx::PointF(25.f, 25.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(456, result_layer->id());
test_point = gfx::PointF(34.f, 34.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(456, result_layer->id());
}
TEST_F(LayerTreeImplTest, HitCheckingTouchHandlerOverlappingRegions) {
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
{
scoped_ptr<LayerImpl> touch_layer =
LayerImpl::Create(host_impl().active_tree(), 123);
// this layer is positioned, and hit testing should correctly know where the
// layer is located.
gfx::PointF position;
gfx::Size bounds(50, 50);
SetLayerPropertiesForTesting(touch_layer.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
touch_layer->SetDrawsContent(true);
touch_layer->SetTouchEventHandlerRegion(gfx::Rect(0, 0, 50, 50));
root->AddChild(touch_layer.Pass());
}
{
scoped_ptr<LayerImpl> notouch_layer =
LayerImpl::Create(host_impl().active_tree(), 1234);
// this layer is positioned, and hit testing should correctly know where the
// layer is located.
gfx::PointF position(0, 25);
gfx::Size bounds(50, 50);
SetLayerPropertiesForTesting(notouch_layer.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
notouch_layer->SetDrawsContent(true);
root->AddChild(notouch_layer.Pass());
}
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(2u, root_layer()->render_surface()->layer_list().size());
ASSERT_EQ(123, root_layer()->render_surface()->layer_list().at(0)->id());
ASSERT_EQ(1234, root_layer()->render_surface()->layer_list().at(1)->id());
gfx::PointF test_point(35.f, 35.f);
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
// We should have passed through the no-touch layer and found the layer
// behind it.
EXPECT_TRUE(result_layer);
host_impl().active_tree()->LayerById(1234)->SetContentsOpaque(true);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
// Even with an opaque layer in the middle, we should still find the layer
// with
// the touch handler behind it (since we can't assume that opaque layers are
// opaque to hit testing).
EXPECT_TRUE(result_layer);
test_point = gfx::PointF(35.f, 15.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
ASSERT_TRUE(result_layer);
EXPECT_EQ(123, result_layer->id());
test_point = gfx::PointF(35.f, 65.f);
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
}
TEST_F(LayerTreeImplTest, HitTestingTouchHandlerRegionsForLayerThatIsNotDrawn) {
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
root->SetDrawsContent(true);
{
Region touch_handler_region(gfx::Rect(10, 10, 30, 30));
gfx::PointF position;
gfx::Size bounds(50, 50);
scoped_ptr<LayerImpl> test_layer =
LayerImpl::Create(host_impl().active_tree(), 12345);
SetLayerPropertiesForTesting(test_layer.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
test_layer->SetDrawsContent(false);
test_layer->SetTouchEventHandlerRegion(touch_handler_region);
root->AddChild(test_layer.Pass());
}
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
LayerImpl* test_layer =
host_impl().active_tree()->root_layer()->children()[0];
// As test_layer doesn't draw content, the layer list of root's render surface
// should contain only the root layer.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
// Hit testing for a point outside the test layer should return null pointer.
// We also implicitly check that the updated screen space transform of a layer
// that is not in drawn render surface layer list (test_layer) is used during
// hit testing (becuase the point is inside test_layer with respect to the old
// screen space transform).
gfx::PointF test_point(24.f, 24.f);
test_layer->SetPosition(gfx::PointF(25.f, 25.f));
gfx::Transform expected_screen_space_transform;
expected_screen_space_transform.Translate(25.f, 25.f);
host_impl().active_tree()->property_trees()->needs_rebuild = true;
host_impl().active_tree()->BuildPropertyTreesForTesting();
LayerImpl* result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
EXPECT_FALSE(result_layer);
EXPECT_FALSE(test_layer->IsDrawnRenderSurfaceLayerListMember());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_screen_space_transform,
test_layer->screen_space_transform());
// We change the position of the test layer such that the test point is now
// inside the test_layer.
test_layer = host_impl().active_tree()->root_layer()->children()[0];
test_layer->SetPosition(gfx::PointF(10.f, 10.f));
expected_screen_space_transform.MakeIdentity();
expected_screen_space_transform.Translate(10.f, 10.f);
host_impl().active_tree()->property_trees()->needs_rebuild = true;
host_impl().active_tree()->BuildPropertyTreesForTesting();
result_layer =
host_impl().active_tree()->FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point);
ASSERT_TRUE(result_layer);
ASSERT_EQ(test_layer, result_layer);
EXPECT_FALSE(result_layer->IsDrawnRenderSurfaceLayerListMember());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_screen_space_transform,
result_layer->screen_space_transform());
}
TEST_F(LayerTreeImplTest, SelectionBoundsForSingleLayer) {
int root_layer_id = 12345;
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), root_layer_id);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
root->SetDrawsContent(true);
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
ASSERT_EQ(1u, root_layer()->render_surface()->layer_list().size());
LayerSelection input;
input.start.type = SELECTION_BOUND_LEFT;
input.start.edge_top = gfx::Point(10, 10);
input.start.edge_bottom = gfx::Point(10, 20);
input.start.layer_id = root_layer_id;
input.end.type = SELECTION_BOUND_RIGHT;
input.end.edge_top = gfx::Point(50, 10);
input.end.edge_bottom = gfx::Point(50, 30);
input.end.layer_id = root_layer_id;
ViewportSelection output;
// Empty input bounds should produce empty output bounds.
host_impl().active_tree()->GetViewportSelection(&output);
EXPECT_EQ(ViewportSelectionBound(), output.start);
EXPECT_EQ(ViewportSelectionBound(), output.end);
// Selection bounds should produce distinct left and right bounds.
host_impl().active_tree()->RegisterSelection(input);
host_impl().active_tree()->GetViewportSelection(&output);
EXPECT_EQ(input.start.type, output.start.type);
EXPECT_EQ(gfx::PointF(input.start.edge_bottom), output.start.edge_bottom);
EXPECT_EQ(gfx::PointF(input.start.edge_top), output.start.edge_top);
EXPECT_TRUE(output.start.visible);
EXPECT_EQ(input.end.type, output.end.type);
EXPECT_EQ(gfx::PointF(input.end.edge_bottom), output.end.edge_bottom);
EXPECT_EQ(gfx::PointF(input.end.edge_top), output.end.edge_top);
EXPECT_TRUE(output.end.visible);
EXPECT_EQ(input.is_editable, output.is_editable);
EXPECT_EQ(input.is_empty_text_form_control,
output.is_empty_text_form_control);
// Insertion bounds should produce identical left and right bounds.
LayerSelection insertion_input;
insertion_input.start.type = SELECTION_BOUND_CENTER;
insertion_input.start.edge_top = gfx::Point(15, 10);
insertion_input.start.edge_bottom = gfx::Point(15, 30);
insertion_input.start.layer_id = root_layer_id;
insertion_input.is_editable = true;
insertion_input.is_empty_text_form_control = true;
insertion_input.end = insertion_input.start;
host_impl().active_tree()->RegisterSelection(insertion_input);
host_impl().active_tree()->GetViewportSelection(&output);
EXPECT_EQ(insertion_input.start.type, output.start.type);
EXPECT_EQ(gfx::PointF(insertion_input.start.edge_bottom),
output.start.edge_bottom);
EXPECT_EQ(gfx::PointF(insertion_input.start.edge_top), output.start.edge_top);
EXPECT_EQ(insertion_input.is_editable, output.is_editable);
EXPECT_EQ(insertion_input.is_empty_text_form_control,
output.is_empty_text_form_control);
EXPECT_TRUE(output.start.visible);
EXPECT_EQ(output.start, output.end);
}
TEST_F(LayerTreeImplTest, SelectionBoundsForPartialOccludedLayers) {
int root_layer_id = 12345;
int clip_layer_id = 1234;
int clipped_layer_id = 123;
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), root_layer_id);
root->SetDrawsContent(true);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
gfx::Vector2dF clipping_offset(10, 10);
{
scoped_ptr<LayerImpl> clipping_layer =
LayerImpl::Create(host_impl().active_tree(), clip_layer_id);
// The clipping layer should occlude the right selection bound.
gfx::PointF position = gfx::PointF() + clipping_offset;
gfx::Size bounds(50, 50);
SetLayerPropertiesForTesting(clipping_layer.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
clipping_layer->SetMasksToBounds(true);
scoped_ptr<LayerImpl> clipped_layer =
LayerImpl::Create(host_impl().active_tree(), clipped_layer_id);
position = gfx::PointF();
bounds = gfx::Size(100, 100);
SetLayerPropertiesForTesting(clipped_layer.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
clipped_layer->SetDrawsContent(true);
clipping_layer->AddChild(clipped_layer.Pass());
root->AddChild(clipping_layer.Pass());
}
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
LayerSelection input;
input.start.type = SELECTION_BOUND_LEFT;
input.start.edge_top = gfx::Point(25, 10);
input.start.edge_bottom = gfx::Point(25, 30);
input.start.layer_id = clipped_layer_id;
input.end.type = SELECTION_BOUND_RIGHT;
input.end.edge_top = gfx::Point(75, 10);
input.end.edge_bottom = gfx::Point(75, 30);
input.end.layer_id = clipped_layer_id;
host_impl().active_tree()->RegisterSelection(input);
// The left bound should be occluded by the clip layer.
ViewportSelection output;
host_impl().active_tree()->GetViewportSelection(&output);
EXPECT_EQ(input.start.type, output.start.type);
auto expected_output_start_top = gfx::PointF(input.start.edge_top);
auto expected_output_edge_botom = gfx::PointF(input.start.edge_bottom);
expected_output_start_top.Offset(clipping_offset.x(), clipping_offset.y());
expected_output_edge_botom.Offset(clipping_offset.x(), clipping_offset.y());
EXPECT_EQ(expected_output_start_top, output.start.edge_top);
EXPECT_EQ(expected_output_edge_botom, output.start.edge_bottom);
EXPECT_TRUE(output.start.visible);
EXPECT_EQ(input.end.type, output.end.type);
auto expected_output_end_top = gfx::PointF(input.end.edge_top);
auto expected_output_end_bottom = gfx::PointF(input.end.edge_bottom);
expected_output_end_bottom.Offset(clipping_offset.x(), clipping_offset.y());
expected_output_end_top.Offset(clipping_offset.x(), clipping_offset.y());
EXPECT_EQ(expected_output_end_top, output.end.edge_top);
EXPECT_EQ(expected_output_end_bottom, output.end.edge_bottom);
EXPECT_FALSE(output.end.visible);
// Handles outside the viewport bounds should be marked invisible.
input.start.edge_top = gfx::Point(-25, 0);
input.start.edge_bottom = gfx::Point(-25, 20);
host_impl().active_tree()->RegisterSelection(input);
host_impl().active_tree()->GetViewportSelection(&output);
EXPECT_FALSE(output.start.visible);
input.start.edge_top = gfx::Point(0, -25);
input.start.edge_bottom = gfx::Point(0, -5);
host_impl().active_tree()->RegisterSelection(input);
host_impl().active_tree()->GetViewportSelection(&output);
EXPECT_FALSE(output.start.visible);
// If the handle bottom is partially visible, the handle is marked visible.
input.start.edge_top = gfx::Point(0, -20);
input.start.edge_bottom = gfx::Point(0, 1);
host_impl().active_tree()->RegisterSelection(input);
host_impl().active_tree()->GetViewportSelection(&output);
EXPECT_TRUE(output.start.visible);
}
TEST_F(LayerTreeImplTest, SelectionBoundsForScaledLayers) {
int root_layer_id = 1;
int sub_layer_id = 2;
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), root_layer_id);
root->SetDrawsContent(true);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
gfx::Vector2dF sub_layer_offset(10, 0);
{
scoped_ptr<LayerImpl> sub_layer =
LayerImpl::Create(host_impl().active_tree(), sub_layer_id);
gfx::PointF position = gfx::PointF() + sub_layer_offset;
gfx::Size bounds(50, 50);
SetLayerPropertiesForTesting(sub_layer.get(), identity_matrix,
transform_origin, position, bounds, true,
false, false);
sub_layer->SetDrawsContent(true);
root->AddChild(sub_layer.Pass());
}
float device_scale_factor = 3.f;
float page_scale_factor = 5.f;
gfx::Size scaled_bounds_for_root = gfx::ScaleToCeiledSize(
root->bounds(), device_scale_factor * page_scale_factor);
host_impl().SetViewportSize(scaled_bounds_for_root);
host_impl().active_tree()->SetDeviceScaleFactor(device_scale_factor);
host_impl().active_tree()->PushPageScaleFromMainThread(
page_scale_factor, page_scale_factor, page_scale_factor);
host_impl().active_tree()->SetPageScaleOnActiveTree(page_scale_factor);
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().active_tree()->SetViewportLayersFromIds(Layer::INVALID_ID, 1, 1,
Layer::INVALID_ID);
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
// Sanity check the scenario we just created.
ASSERT_EQ(1u, RenderSurfaceLayerList().size());
LayerSelection input;
input.start.type = SELECTION_BOUND_LEFT;
input.start.edge_top = gfx::Point(10, 10);
input.start.edge_bottom = gfx::Point(10, 30);
input.start.layer_id = root_layer_id;
input.end.type = SELECTION_BOUND_RIGHT;
input.end.edge_top = gfx::Point(0, 0);
input.end.edge_bottom = gfx::Point(0, 20);
input.end.layer_id = sub_layer_id;
host_impl().active_tree()->RegisterSelection(input);
// The viewport bounds should be properly scaled by the page scale, but should
// remain in DIP coordinates.
ViewportSelection output;
host_impl().active_tree()->GetViewportSelection(&output);
EXPECT_EQ(input.start.type, output.start.type);
auto expected_output_start_top = gfx::PointF(input.start.edge_top);
auto expected_output_edge_bottom = gfx::PointF(input.start.edge_bottom);
expected_output_start_top.Scale(page_scale_factor);
expected_output_edge_bottom.Scale(page_scale_factor);
EXPECT_EQ(expected_output_start_top, output.start.edge_top);
EXPECT_EQ(expected_output_edge_bottom, output.start.edge_bottom);
EXPECT_TRUE(output.start.visible);
EXPECT_EQ(input.end.type, output.end.type);
auto expected_output_end_top = gfx::PointF(input.end.edge_top);
auto expected_output_end_bottom = gfx::PointF(input.end.edge_bottom);
expected_output_end_top.Offset(sub_layer_offset.x(), sub_layer_offset.y());
expected_output_end_bottom.Offset(sub_layer_offset.x(), sub_layer_offset.y());
expected_output_end_top.Scale(page_scale_factor);
expected_output_end_bottom.Scale(page_scale_factor);
EXPECT_EQ(expected_output_end_top, output.end.edge_top);
EXPECT_EQ(expected_output_end_bottom, output.end.edge_bottom);
EXPECT_TRUE(output.end.visible);
}
TEST_F(LayerTreeImplTest, SelectionBoundsWithLargeTransforms) {
int root_id = 1;
int child_id = 2;
int grand_child_id = 3;
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl().active_tree(), root_id);
gfx::Size bounds(100, 100);
gfx::Transform identity_matrix;
gfx::Point3F transform_origin;
gfx::PointF position;
SetLayerPropertiesForTesting(root.get(), identity_matrix, transform_origin,
position, bounds, true, false, true);
gfx::Transform large_transform;
large_transform.Scale(SkDoubleToMScalar(1e37), SkDoubleToMScalar(1e37));
large_transform.RotateAboutYAxis(30);
{
scoped_ptr<LayerImpl> child =
LayerImpl::Create(host_impl().active_tree(), child_id);
SetLayerPropertiesForTesting(child.get(), large_transform, transform_origin,
position, bounds, true, false, false);
scoped_ptr<LayerImpl> grand_child =
LayerImpl::Create(host_impl().active_tree(), grand_child_id);
SetLayerPropertiesForTesting(grand_child.get(), large_transform,
transform_origin, position, bounds, true,
false, false);
grand_child->SetDrawsContent(true);
child->AddChild(grand_child.Pass());
root->AddChild(child.Pass());
}
host_impl().SetViewportSize(root->bounds());
host_impl().active_tree()->SetRootLayer(root.Pass());
host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
LayerSelection input;
input.start.type = SELECTION_BOUND_LEFT;
input.start.edge_top = gfx::Point(10, 10);
input.start.edge_bottom = gfx::Point(10, 20);
input.start.layer_id = grand_child_id;
input.end.type = SELECTION_BOUND_RIGHT;
input.end.edge_top = gfx::Point(50, 10);
input.end.edge_bottom = gfx::Point(50, 30);
input.end.layer_id = grand_child_id;
host_impl().active_tree()->RegisterSelection(input);
ViewportSelection output;
host_impl().active_tree()->GetViewportSelection(&output);
// edge_bottom and edge_top aren't allowed to have NaNs, so the selection
// should be empty.
EXPECT_EQ(ViewportSelectionBound(), output.start);
EXPECT_EQ(ViewportSelectionBound(), output.end);
}
TEST_F(LayerTreeImplTest, NumLayersTestOne) {
EXPECT_EQ(0u, host_impl().active_tree()->NumLayers());
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
EXPECT_EQ(1u, host_impl().active_tree()->NumLayers());
}
TEST_F(LayerTreeImplTest, NumLayersSmallTree) {
EXPECT_EQ(0u, host_impl().active_tree()->NumLayers());
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl().active_tree(), 1);
root->AddChild(LayerImpl::Create(host_impl().active_tree(), 2));
root->AddChild(LayerImpl::Create(host_impl().active_tree(), 3));
root->child_at(1)->AddChild(LayerImpl::Create(host_impl().active_tree(), 4));
EXPECT_EQ(4u, host_impl().active_tree()->NumLayers());
}
} // namespace
} // namespace cc