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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/layers/painted_scrollbar_layer_impl.h"
#include <stddef.h>
#include "cc/resources/ui_resource_bitmap.h"
#include "cc/test/layer_tree_impl_test_base.h"
#include "components/viz/common/quads/draw_quad.h"
#include "components/viz/common/quads/solid_color_draw_quad.h"
#include "components/viz/common/quads/texture_draw_quad.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cc {
namespace {
TEST(PaintedScrollbarLayerImplTest, Occlusion) {
gfx::Size layer_size(10, 1000);
float scale = 2.f;
gfx::Size scaled_layer_size(20, 2000);
gfx::Size viewport_size(1000, 1000);
float painted_opacity_ = 0.2f;
LayerTreeImplTestBase impl;
SkBitmap thumb_sk_bitmap;
thumb_sk_bitmap.allocN32Pixels(10, 10);
thumb_sk_bitmap.setImmutable();
UIResourceId thumb_uid = 5;
UIResourceBitmap thumb_bitmap(thumb_sk_bitmap);
impl.host_impl()->CreateUIResource(thumb_uid, thumb_bitmap);
SkBitmap track_and_buttons_sk_bitmap;
track_and_buttons_sk_bitmap.allocN32Pixels(10, 10);
track_and_buttons_sk_bitmap.setImmutable();
UIResourceId track_and_buttons_uid = 6;
UIResourceBitmap track_and_buttons_bitmap(track_and_buttons_sk_bitmap);
impl.host_impl()->CreateUIResource(track_and_buttons_uid,
track_and_buttons_bitmap);
ScrollbarOrientation orientation = ScrollbarOrientation::kVertical;
PaintedScrollbarLayerImpl* scrollbar_layer_impl =
impl.AddLayerInActiveTree<PaintedScrollbarLayerImpl>(orientation, false,
false);
scrollbar_layer_impl->SetBounds(layer_size);
scrollbar_layer_impl->SetContentsOpaque(true);
scrollbar_layer_impl->set_internal_contents_scale_and_bounds(
scale, scaled_layer_size);
scrollbar_layer_impl->SetDrawsContent(true);
scrollbar_layer_impl->SetThumbThickness(layer_size.width());
scrollbar_layer_impl->SetThumbLength(500);
scrollbar_layer_impl->SetTrackRect(gfx::Rect(0, 0, 15, layer_size.height()));
scrollbar_layer_impl->SetCurrentPos(100.f / 4);
scrollbar_layer_impl->SetClipLayerLength(100.f);
scrollbar_layer_impl->SetScrollLayerLength(200.f);
scrollbar_layer_impl->set_track_and_buttons_ui_resource_id(
track_and_buttons_uid);
scrollbar_layer_impl->set_thumb_ui_resource_id(thumb_uid);
scrollbar_layer_impl->SetScrollbarPaintedOpacity(painted_opacity_);
CopyProperties(impl.root_layer(), scrollbar_layer_impl);
impl.CalcDrawProps(viewport_size);
gfx::Rect thumb_rect = scrollbar_layer_impl->ComputeThumbQuadRect();
EXPECT_EQ(gfx::Rect(0, 500 / 4, 10, layer_size.height() / 2), thumb_rect);
{
SCOPED_TRACE("No occlusion");
gfx::Rect occluded;
impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
size_t partially_occluded_count = 0;
VerifyQuadsAreOccluded(impl.quad_list(), occluded,
&partially_occluded_count);
EXPECT_EQ(2u, impl.quad_list().size());
EXPECT_EQ(0u, partially_occluded_count);
// Note: this is also testing that the thumb and track are both
// scaled by the internal contents scale. It's not occlusion-related
// but is easy to verify here.
const viz::DrawQuad* thumb_draw_quad = impl.quad_list().ElementAt(0);
const viz::DrawQuad* track_and_buttons_draw_quad =
impl.quad_list().ElementAt(1);
EXPECT_EQ(viz::DrawQuad::Material::kTextureContent,
thumb_draw_quad->material);
EXPECT_EQ(viz::DrawQuad::Material::kTextureContent,
track_and_buttons_draw_quad->material);
const viz::TextureDrawQuad* thumb_quad =
viz::TextureDrawQuad::MaterialCast(thumb_draw_quad);
const viz::TextureDrawQuad* track_and_buttons_quad =
viz::TextureDrawQuad::MaterialCast(track_and_buttons_draw_quad);
gfx::Rect scaled_thumb_rect = gfx::ScaleToEnclosingRect(thumb_rect, scale);
EXPECT_EQ(track_and_buttons_quad->rect, gfx::Rect(scaled_layer_size));
EXPECT_EQ(scrollbar_layer_impl->contents_opaque(),
track_and_buttons_quad->shared_quad_state->are_contents_opaque);
EXPECT_EQ(track_and_buttons_quad->visible_rect,
gfx::Rect(scaled_layer_size));
EXPECT_FALSE(track_and_buttons_quad->needs_blending);
EXPECT_EQ(thumb_quad->rect, scaled_thumb_rect);
EXPECT_EQ(thumb_quad->visible_rect, scaled_thumb_rect);
EXPECT_TRUE(thumb_quad->needs_blending);
EXPECT_FALSE(thumb_quad->shared_quad_state->are_contents_opaque);
EXPECT_EQ(painted_opacity_, thumb_quad->shared_quad_state->opacity);
EXPECT_EQ(1.f, track_and_buttons_quad->shared_quad_state->opacity);
}
{
SCOPED_TRACE("Full occlusion");
gfx::Rect occluded(scrollbar_layer_impl->visible_layer_rect());
impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
EXPECT_EQ(impl.quad_list().size(), 0u);
}
{
SCOPED_TRACE("Partial occlusion");
gfx::Rect occluded(0, 0, 5, 1000);
impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
size_t partially_occluded_count = 0;
VerifyQuadsAreOccluded(impl.quad_list(), occluded,
&partially_occluded_count);
// The layer outputs two quads, which is partially occluded.
EXPECT_EQ(2u, impl.quad_list().size());
EXPECT_EQ(2u, partially_occluded_count);
}
}
TEST(PaintedScrollbarLayerImplTest, Occlusion_SolidColorThumbNinePatchTrack) {
gfx::Size layer_size(15, 1000);
float scale = 2.f;
gfx::Size scaled_layer_size(30, 2000);
gfx::Size viewport_size(1000, 1000);
LayerTreeImplTestBase impl;
SkBitmap thumb_sk_bitmap;
thumb_sk_bitmap.allocN32Pixels(10, 10);
thumb_sk_bitmap.setImmutable();
UIResourceId thumb_uid = 5;
UIResourceBitmap thumb_bitmap(thumb_sk_bitmap);
impl.host_impl()->CreateUIResource(thumb_uid, thumb_bitmap);
SkBitmap track_and_buttons_sk_bitmap;
track_and_buttons_sk_bitmap.allocN32Pixels(10, 10);
track_and_buttons_sk_bitmap.setImmutable();
UIResourceId track_and_buttons_uid = 6;
UIResourceBitmap track_and_buttons_bitmap(track_and_buttons_sk_bitmap);
impl.host_impl()->CreateUIResource(track_and_buttons_uid,
track_and_buttons_bitmap);
ScrollbarOrientation orientation = ScrollbarOrientation::kVertical;
PaintedScrollbarLayerImpl* scrollbar_layer_impl =
impl.AddLayerInActiveTree<PaintedScrollbarLayerImpl>(orientation, false,
false);
scrollbar_layer_impl->SetBounds(layer_size);
scrollbar_layer_impl->SetContentsOpaque(true);
scrollbar_layer_impl->set_internal_contents_scale_and_bounds(
scale, scaled_layer_size);
scrollbar_layer_impl->SetDrawsContent(true);
scrollbar_layer_impl->SetThumbThickness(11);
scrollbar_layer_impl->SetThumbLength(500);
scrollbar_layer_impl->SetTrackRect(gfx::Rect(0, 0, 15, layer_size.height()));
scrollbar_layer_impl->SetCurrentPos(100.f / 4);
scrollbar_layer_impl->SetClipLayerLength(100.f);
scrollbar_layer_impl->SetScrollLayerLength(200.f);
scrollbar_layer_impl->set_track_and_buttons_ui_resource_id(
track_and_buttons_uid);
scrollbar_layer_impl->SetThumbColor(SkColors::kRed);
CopyProperties(impl.root_layer(), scrollbar_layer_impl);
impl.CalcDrawProps(viewport_size);
gfx::Rect thumb_rect = scrollbar_layer_impl->ComputeThumbQuadRect();
EXPECT_EQ(gfx::Rect(2, 500 / 4, 11, layer_size.height() / 2), thumb_rect);
gfx::Rect scaled_thumb_rect = gfx::ScaleToEnclosingRect(thumb_rect, scale);
{
SCOPED_TRACE("No occlusion");
gfx::Rect occluded;
impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
size_t partially_occluded_count = 0;
VerifyQuadsAreOccluded(impl.quad_list(), occluded,
&partially_occluded_count);
EXPECT_EQ(2u, impl.quad_list().size());
EXPECT_EQ(0u, partially_occluded_count);
// Note: this is also testing that the thumb and track are both
// scaled by the internal contents scale. It's not occlusion-related
// but is easy to verify here.
const viz::DrawQuad* thumb_draw_quad = impl.quad_list().ElementAt(0);
const viz::DrawQuad* track_and_buttons_draw_quad =
impl.quad_list().ElementAt(1);
EXPECT_EQ(viz::DrawQuad::Material::kSolidColor, thumb_draw_quad->material);
EXPECT_EQ(viz::DrawQuad::Material::kTextureContent,
track_and_buttons_draw_quad->material);
const viz::SolidColorDrawQuad* thumb_quad =
viz::SolidColorDrawQuad::MaterialCast(thumb_draw_quad);
const viz::TextureDrawQuad* track_and_buttons_quad =
viz::TextureDrawQuad::MaterialCast(track_and_buttons_draw_quad);
EXPECT_EQ(track_and_buttons_quad->rect, gfx::Rect(scaled_layer_size));
EXPECT_EQ(scrollbar_layer_impl->contents_opaque(),
track_and_buttons_quad->shared_quad_state->are_contents_opaque);
EXPECT_EQ(track_and_buttons_quad->visible_rect,
gfx::Rect(scaled_layer_size));
EXPECT_FALSE(track_and_buttons_quad->needs_blending);
EXPECT_EQ(thumb_quad->rect, scaled_thumb_rect);
EXPECT_EQ(thumb_quad->visible_rect, scaled_thumb_rect);
EXPECT_FALSE(thumb_quad->needs_blending);
EXPECT_FALSE(thumb_quad->shared_quad_state->are_contents_opaque);
EXPECT_EQ(1.f, thumb_quad->shared_quad_state->opacity);
EXPECT_EQ(1.f, track_and_buttons_quad->shared_quad_state->opacity);
}
{
SCOPED_TRACE("Full occlusion");
gfx::Rect occluded(scrollbar_layer_impl->visible_layer_rect());
impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
EXPECT_EQ(impl.quad_list().size(), 0u);
}
{
SCOPED_TRACE("Partial occlusion");
gfx::Rect occluded(0, 0, 5, 1000);
impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
size_t partially_occluded_count = 0;
VerifyQuadsAreOccluded(impl.quad_list(), occluded,
&partially_occluded_count);
// The layer outputs two quads, which is partially occluded.
EXPECT_EQ(2u, impl.quad_list().size());
EXPECT_EQ(2u, partially_occluded_count);
}
}
TEST(PaintedScrollbarLayerImplTest,
SolidColorThumbNinePatchTrackUnderClipAndScale) {
gfx::Size layer_size(15, 1000);
gfx::Rect clip_rect(0, 0, 1000, 1000);
float scale = 33.f;
gfx::Size scaled_layer_size = gfx::ScaleToCeiledSize(layer_size, scale);
gfx::Size viewport_size(1000, 1000);
LayerTreeImplTestBase impl;
SkBitmap thumb_sk_bitmap;
thumb_sk_bitmap.allocN32Pixels(10, 10);
thumb_sk_bitmap.setImmutable();
UIResourceId thumb_uid = 5;
UIResourceBitmap thumb_bitmap(thumb_sk_bitmap);
impl.host_impl()->CreateUIResource(thumb_uid, thumb_bitmap);
SkBitmap track_and_buttons_sk_bitmap;
track_and_buttons_sk_bitmap.allocN32Pixels(10, 10);
track_and_buttons_sk_bitmap.setImmutable();
UIResourceId track_and_buttons_uid = 6;
UIResourceBitmap track_and_buttons_bitmap(track_and_buttons_sk_bitmap);
impl.host_impl()->CreateUIResource(track_and_buttons_uid,
track_and_buttons_bitmap);
ScrollbarOrientation orientation = ScrollbarOrientation::kVertical;
PaintedScrollbarLayerImpl* scrollbar_layer_impl =
impl.AddLayerInActiveTree<PaintedScrollbarLayerImpl>(orientation, false,
false);
scrollbar_layer_impl->SetBounds(layer_size);
scrollbar_layer_impl->SetContentsOpaque(true);
scrollbar_layer_impl->set_internal_contents_scale_and_bounds(
scale, scaled_layer_size);
scrollbar_layer_impl->SetDrawsContent(true);
scrollbar_layer_impl->SetThumbThickness(11);
scrollbar_layer_impl->SetThumbLength(500);
scrollbar_layer_impl->SetTrackRect(gfx::Rect(0, 0, 15, layer_size.height()));
scrollbar_layer_impl->SetCurrentPos(100.f / 4);
scrollbar_layer_impl->SetClipLayerLength(100.f);
scrollbar_layer_impl->SetScrollLayerLength(200.f);
scrollbar_layer_impl->set_track_and_buttons_ui_resource_id(
track_and_buttons_uid);
scrollbar_layer_impl->SetThumbColor(SkColors::kRed);
CopyProperties(impl.root_layer(), scrollbar_layer_impl);
CreateClipNode(scrollbar_layer_impl).clip = gfx::RectF(clip_rect);
CreateTransformNode(scrollbar_layer_impl).local.Scale(scale);
impl.CalcDrawProps(viewport_size);
gfx::Rect thumb_rect = scrollbar_layer_impl->ComputeThumbQuadRect();
EXPECT_EQ(gfx::Rect(2, 500 / 4, 11, layer_size.height() / 2), thumb_rect);
gfx::Rect scaled_thumb_rect = gfx::ScaleToEnclosingRect(thumb_rect, scale);
impl.AppendQuads(scrollbar_layer_impl);
EXPECT_EQ(2u, impl.quad_list().size());
const viz::SolidColorDrawQuad* thumb_quad =
viz::SolidColorDrawQuad::MaterialCast(impl.quad_list().ElementAt(0));
EXPECT_EQ(thumb_quad->rect, scaled_thumb_rect);
EXPECT_EQ(thumb_quad->visible_rect, scaled_thumb_rect);
EXPECT_FALSE(thumb_quad->needs_blending);
EXPECT_FALSE(thumb_quad->shared_quad_state->are_contents_opaque);
EXPECT_EQ(1.f, thumb_quad->shared_quad_state->opacity);
const viz::TextureDrawQuad* track_and_buttons_quad =
viz::TextureDrawQuad::MaterialCast(impl.quad_list().ElementAt(1));
EXPECT_EQ(track_and_buttons_quad->shared_quad_state->clip_rect, clip_rect);
EXPECT_EQ(track_and_buttons_quad->rect, gfx::Rect(scaled_layer_size));
EXPECT_EQ(scrollbar_layer_impl->contents_opaque(),
track_and_buttons_quad->shared_quad_state->are_contents_opaque);
EXPECT_EQ(track_and_buttons_quad->visible_rect, gfx::Rect(scaled_layer_size));
EXPECT_FALSE(track_and_buttons_quad->needs_blending);
EXPECT_EQ(track_and_buttons_quad->shared_quad_state->clip_rect, clip_rect);
EXPECT_EQ(1.f, track_and_buttons_quad->shared_quad_state->opacity);
}
TEST(PaintedScrollbarLayerImplTest, PaintedOpacityChangesInvalidate) {
LayerTreeImplTestBase impl;
ScrollbarOrientation orientation = ScrollbarOrientation::kVertical;
PaintedScrollbarLayerImpl* scrollbar_layer_impl =
impl.AddLayerInActiveTree<PaintedScrollbarLayerImpl>(orientation, false,
false);
EXPECT_FALSE(
scrollbar_layer_impl->LayerPropertyChangedNotFromPropertyTrees());
scrollbar_layer_impl->SetScrollbarPaintedOpacity(0.3f);
EXPECT_TRUE(scrollbar_layer_impl->LayerPropertyChangedNotFromPropertyTrees());
}
class PaintedScrollbarLayerImplSolidColorThumbTest : public ::testing::Test {
protected:
void SetUp() override {
impl_ = std::make_unique<LayerTreeImplTestBase>(LayerTreeSettings());
}
PaintedScrollbarLayerImpl* SetUpScrollbarLayerImpl(
ScrollbarOrientation orientation,
bool is_left_side_vertical_scrollbar,
const gfx::Rect& track_rect,
int thumb_thickness,
int thumb_length,
bool is_overlay = false) {
PaintedScrollbarLayerImpl* scrollbar_layer_impl =
impl_->AddLayerInActiveTree<PaintedScrollbarLayerImpl>(
orientation, is_left_side_vertical_scrollbar, is_overlay);
scrollbar_layer_impl->SetTrackRect(track_rect);
scrollbar_layer_impl->SetThumbThickness(thumb_thickness);
scrollbar_layer_impl->SetThumbLength(thumb_length);
scrollbar_layer_impl->SetBounds(track_rect.size());
scrollbar_layer_impl->SetThumbColor(SkColors::kRed);
return scrollbar_layer_impl;
}
std::unique_ptr<LayerTreeImplTestBase> impl_;
};
TEST_F(PaintedScrollbarLayerImplSolidColorThumbTest, ComputeThumbQuadRect) {
const PaintedScrollbarLayerImpl* scrollbar_layer_impl_vertical =
SetUpScrollbarLayerImpl(ScrollbarOrientation::kVertical, false,
gfx::Rect(0, 0, 14, 100), 6, 30);
EXPECT_EQ(scrollbar_layer_impl_vertical->ComputeThumbQuadRect(),
gfx::Rect(4, 0, 6, 30));
PaintedScrollbarLayerImpl* scrollbar_layer_impl_vertical_left =
SetUpScrollbarLayerImpl(ScrollbarOrientation::kVertical, true,
gfx::Rect(0, 0, 14, 100), 6, 30);
scrollbar_layer_impl_vertical_left->SetBounds(gfx::Size(14, 100));
EXPECT_EQ(scrollbar_layer_impl_vertical_left->ComputeThumbQuadRect(),
gfx::Rect(4, 0, 6, 30));
const PaintedScrollbarLayerImpl* scrollbar_layer_impl_horizontal =
SetUpScrollbarLayerImpl(ScrollbarOrientation::kHorizontal, false,
gfx::Rect(0, 0, 100, 14), 6, 30);
EXPECT_EQ(scrollbar_layer_impl_horizontal->ComputeThumbQuadRect(),
gfx::Rect(0, 4, 30, 6));
}
TEST_F(PaintedScrollbarLayerImplSolidColorThumbTest,
ComputeHitTestableThumbQuadRect) {
const PaintedScrollbarLayerImpl* scrollbar_layer_impl_vertical =
SetUpScrollbarLayerImpl(ScrollbarOrientation::kVertical, false,
gfx::Rect(0, 0, 14, 100), 6, 30);
EXPECT_EQ(scrollbar_layer_impl_vertical->ComputeHitTestableThumbQuadRect(),
gfx::Rect(0, 0, 14, 30));
PaintedScrollbarLayerImpl* scrollbar_layer_impl_vertical_left =
SetUpScrollbarLayerImpl(ScrollbarOrientation::kVertical, true,
gfx::Rect(0, 0, 14, 100), 6, 30);
scrollbar_layer_impl_vertical_left->SetBounds(gfx::Size(14, 100));
EXPECT_EQ(
scrollbar_layer_impl_vertical_left->ComputeHitTestableThumbQuadRect(),
gfx::Rect(0, 0, 14, 30));
const PaintedScrollbarLayerImpl* scrollbar_layer_impl_horizontal =
SetUpScrollbarLayerImpl(ScrollbarOrientation::kHorizontal, false,
gfx::Rect(0, 0, 100, 14), 6, 30);
EXPECT_EQ(scrollbar_layer_impl_horizontal->ComputeHitTestableThumbQuadRect(),
gfx::Rect(0, 0, 30, 14));
}
class PaintedScrollbarLayerImplFluentOverlayTest
: public PaintedScrollbarLayerImplSolidColorThumbTest {
protected:
void SetUp() override {
LayerTreeSettings settings = CommitToPendingTreeLayerListSettings();
settings.enable_fluent_overlay_scrollbar = true;
settings.enable_fluent_scrollbar = true;
impl_ = std::make_unique<LayerTreeImplTestBase>(settings);
}
};
// Since the thumb's drawn thickness is smaller than the track's thickness,
// verify that the computed thickness is the width of the track. This prevents
// cases where clicking on the margin of the thumb would cause the thumb to not
// consider itself clicked/captured.
TEST_F(PaintedScrollbarLayerImplFluentOverlayTest,
OverlayFluentThumbHasNoMargin) {
{
const PaintedScrollbarLayerImpl* scrollbar_layer_impl =
SetUpScrollbarLayerImpl(ScrollbarOrientation::kVertical,
/*is_left_side_vertical_scrollbar=*/false,
gfx::Rect(0, 0, 14, 100), 6, 30,
/*is_overlay=*/true);
gfx::Rect thumb =
scrollbar_layer_impl->ComputeHitTestableExpandedThumbQuadRect();
EXPECT_EQ(scrollbar_layer_impl->bounds().width(), thumb.width());
}
{
const PaintedScrollbarLayerImpl* scrollbar_layer_impl =
SetUpScrollbarLayerImpl(ScrollbarOrientation::kHorizontal,
/*is_left_side_vertical_scrollbar=*/false,
gfx::Rect(0, 0, 100, 14), 6, 30,
/*is_overlay=*/true);
gfx::Rect thumb =
scrollbar_layer_impl->ComputeHitTestableExpandedThumbQuadRect();
EXPECT_EQ(scrollbar_layer_impl->bounds().height(), thumb.height());
}
}
// Test that when no ThumbColor is set with Fluent Scrollbars enabled,
// AppendThumbQuads makes an early return and doesn't append any quads.
TEST_F(PaintedScrollbarLayerImplFluentOverlayTest,
NoThumbColorDoesntAppendQuads) {
PaintedScrollbarLayerImpl* scrollbar_layer_impl =
impl_->AddLayerInActiveTree<PaintedScrollbarLayerImpl>(
ScrollbarOrientation::kVertical,
/*is_left_side_vertical_scrollbar=*/false, /*is_overlay=*/true);
// Set all the correct dimensions required for quads to be appended.
const gfx::Rect track_rect(0, 0, 14, 100);
scrollbar_layer_impl->SetTrackRect(track_rect);
scrollbar_layer_impl->SetThumbThickness(/*thumb_thickness=*/6);
scrollbar_layer_impl->SetThumbLength(/*thumb_length=*/30);
scrollbar_layer_impl->SetBounds(track_rect.size());
// Ensure that no track quad will be appended by setting the thickness to
// the minimum.
scrollbar_layer_impl->SetThumbThickness(
scrollbar_layer_impl->GetIdleThicknessScale());
CopyProperties(impl_->root_layer(), scrollbar_layer_impl);
impl_->CalcDrawProps(gfx::Size(500, 500));
// AppendThumbQuads should return early after checking that there is no
// `thumb_color_` and Fluent scrollbars are enabled.
// AppendTrackQuads should return early when the Fluent overlay code decides
// it shouldn't append a track quad.
impl_->AppendQuads(scrollbar_layer_impl);
EXPECT_TRUE(impl_->quad_list().empty());
}
} // namespace
} // namespace cc
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